CN115109694A - Sequencing system and bearing device - Google Patents

Abstract

The application discloses a sequencing system and a bearing device. The sequencing system comprises: carrying device, fluidic device, imaging device and computing device. The bearing device is used for bearing and adjusting the temperature of the reactor; the fluid device is connected with the bearing device and is used for controllably moving one or more reagents with fluorescent labels to the reactor to be contacted with the polynucleotide; the imaging device is positioned above the bearing device and used for exciting and collecting fluorescence generated by the fluorescent marker; the computing device is operably coupled to the imaging device for acquiring an instruction set of the fluorescence signal from the imaging device. The sequencing system in this application can realize focusing and chase after in order to satisfy the formation of image requirement better when sequencing, can also control the temperature of reaction environment better in order to guarantee biochemical reaction's effective going on to and make through rationally distributed mechanical firmware that the deformation is less and/or keep more firm relation of connection takes place for relevant spare part in the temperature regulation process, can improve sequencing precision and instrument life.

Description

Sequencing system and carrier device

technical field

The present application relates to the field of biological sample detection equipment, and in particular, to a sequencing system and a carrying device.

Background technique

With the continuous development of nucleic acid sequencing technology, the sequencing system is also constantly updated. In a sequencing system/sequencing platform for detecting nucleic acid molecules to be detected in a chip based on an optical imaging system, the sequencing system includes an imaging component, and the imaging component is used to perform a sequencing reaction on the nucleic acid in the reactor (for example, the flow cell flowc-ell or the chip). Molecules are photographed, and the resulting images are analyzed to obtain sequencing results.

Generally, to achieve focusing and/or tracking to capture images of one or more positions/fields of view on the chip at multiple time points, it is required that the chip installed on the sequencing platform and the imaging component meet or maintain a relative positional relationship. Typically, a sequencing system includes a carrier device for carrying the chip and/or for adjusting the position of the chip.

In the detection and analysis of the sample to be tested, biochemical reactions are often involved, especially those involving biocatalysts such as proteases, which are sensitive to temperature and generally need to control the temperature of the reaction environment, such as cooling the chip or The temperature is controlled to ensure the effective progress of the biochemical reaction on it. Existing sequencing devices include temperature control components. For example, semiconductor cooling sheets are used to cool or heat the chips, and metal heat sinks or water cooling systems are used to dissipate heat. The so-called temperature control component is in direct or indirect contact with the reactor to achieve refrigeration or heating. During the process of temperature change, the structure in contact with the temperature control component, such as the reactor, will deform, which may affect the biochemical reaction in the reactor. and/or increase the difficulty of focusing and tracking the signal acquisition.

How to control related components/components/structures affected by temperature, including how to arrange related components/structures reasonably, to better realize the functions of components/structures/devices and/or prolong their service life, is to be solved or improved question.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a sequencing system and a carrying device.

The sequencing system of the embodiment of the present application includes: a carrying device for carrying a reactor and adjusting the temperature of the reactor, a plurality of polynucleotides are connected to the reactor, and the carrying device includes: a base having a On the bearing surface that carries the reactor, the temperature control assembly includes a connected heat conduction plate, a refrigerator and a heat dissipation module. The refrigerator is connected to the reactor through the heat conduction plate, and is placed on the bearing surface. In the case of the reactor, the thermally conductive plate is rigidly connected to the reactor, and a connecting component connects the base and the temperature control component, the connecting component includes a support seat, and the thermally conductive plate is connected to the The base is connected through the support base; a fluid device is connected with the carrying device for controllably moving one or more fluorescently labeled reagents to the reactor and the polynucleotide contacting; an imaging device positioned above the carrier device for exciting and collecting fluorescence generated by the fluorescent label; a computing device operably coupled to the imaging device, including means for acquiring fluorescence from the imaging device Signal instruction set.

In the sequencing device including the above structures, components or modules and connection relationships according to the embodiments of the present application, by rationally arranging the mechanical firmware, the deformation of the related parts during the temperature adjustment process is smaller and/or the connection relationship is kept relatively stable, which can improve automation. Sequencing accuracy and instrument life. Using the sequencing device for nucleic acid sequencing can better control the temperature of the reaction environment of the reactor to ensure the effective progress of the biochemical reaction in the reactor, and can also better achieve focusing and tracking, and quickly obtain a clear and clear view of the designated surface of the reactor. images, and then based on these clear images, the bases can be accurately identified, and the accurate determination of the nucleic acid sequence can be realized.

A bearing device in an embodiment of the present application includes: a base having a bearing surface for bearing a reactor; and a temperature control assembly, wherein the temperature control assembly includes a connected heat conducting plate, a refrigerator and a heat dissipation module. The refrigerator is connected with the reactor through the heat-conducting plate, and when the reactor is placed on the bearing surface, the heat-conducting plate is rigidly connected with the reactor; and a connecting assembly, the base and The temperature control assembly is connected through the connection assembly, and the connection assembly includes a support seat, and the heat conduction plate and the base are connected through the support seat.

The bearing device including the above-mentioned structural composition and connection relationship, including that the heat-conducting plate and the reactor are arranged to be rigidly connected and/or that the heat-conducting plate and the base are not directly connected, can better control the influence of temperature changes on the structure and the connection relationship between the structures. , so that the carrying device can carry the reactor more stably all the time, including maintaining the position of the reactor in the moving process is always fast, and can achieve better heat transfer, which is conducive to the reaction in the carried reactor and the driving of the reactor. So that the detection device can continuously collect signals from different parts of the reactor, and stably realize the detection of the sample.

Additional aspects and advantages of the present application will be set forth, in part, from the following description, and in part will become apparent from the following description, or may be learned by practice of the present application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

1 is a schematic perspective view of a sequencing system according to an embodiment of the present application;

FIG. 2 is an exploded schematic view of a carrying device according to an embodiment of the present application;

3 is a schematic structural diagram of a mobile platform according to an embodiment of the present application when a base is carried;

4 is a schematic structural diagram of a base according to an embodiment of the present application;

5 is a schematic structural diagram of a reactor according to an embodiment of the present application

6 is a schematic structural diagram of a base according to an embodiment of the present application;

7 is a schematic side view of the mobile platform according to the embodiment of the present application when the base is carried;

FIG. 8 is a partial enlarged schematic diagram of FIG. 7 according to an embodiment of the present application;

9 is a schematic longitudinal cross-sectional view of the carrying device carrying the reactor according to the embodiment of the present application;

10 is a working principle diagram of the heat dissipation module and the control module according to the embodiment of the present application;

11 is a schematic structural diagram of a water bath according to an embodiment of the present application;

12 is a schematic structural diagram of a heat dissipation plate according to an embodiment of the present application;

13 is a schematic structural diagram of a cover plate according to an embodiment of the present application;

FIG. 14 is another schematic structural diagram of the heat dissipation plate according to the embodiment of the present application;

15 is a schematic longitudinal cross-sectional view of the carrying device from another perspective of an embodiment of the present application;

FIG. 16 is an enlarged schematic diagram of a part in FIG. 15 of an embodiment of the present application;

17 is a schematic structural diagram of a support seat according to an embodiment of the present application;

18 is a schematic structural diagram of a thermally conductive plate according to an embodiment of the present application;

FIG. 19 is a schematic structural diagram of the reactor according to the embodiment of the present application from another perspective;

20 is a schematic longitudinal cross-sectional view of the carrying device according to the embodiment of the present application from another perspective;

21 is a schematic longitudinal cross-sectional view of the carrying device according to the embodiment of the present application at the first manifold;

22 is a partial cross-sectional view of a first manifold of an embodiment of the present application;

23 is a schematic longitudinal cross-sectional view of the carrying device of the embodiment of the present application at the second manifold;

24 is a schematic structural diagram of an imaging device according to an embodiment of the present application;

25 is a schematic structural diagram of a first light source according to an embodiment of the present application;

FIG. 26 is a schematic structural diagram of a fluid device according to an embodiment of the present application.

Description of main component symbols:

Sequencing system 10000,

The carrying device 1000 , the base 100 , the carrying surface 120 , the accommodating groove 122 , the first through hole 124 , the gap 126 , the temperature control assembly 200 , the heat conduction plate 220 , the first hole 222 , the second hole 224 ,

The refrigerator 240, the heat dissipation module 260, the water bath 262, the first flow channel 262a, the second flow channel 262b, the third flow channel 262c, the fourth flow channel 262d, the liquid inlet 262e, the liquid outlet 262f, the heat dissipation plate 2622, the first A heat dissipation area 2622a, a second heat dissipation area 2622b, a cover plate 2624, a flow channel 2626, a sealing ring 2628, a liquid component 264, a pump 2642, a cooler 2644, a water reservoir 2646, a control module 280, a temperature sensor 282, a microprocessor 284.

Reactor 300, chip frame 320, third hole 322, fourth hole 324, sheet 340, flow path 360, inlet 362, outlet 364, rigid plate 380,

The support seat 420, the through groove 422, the first raised portion 424, the second raised portion 426, the first positioning structure 440, the first positioning post 442, the first positioning ball 444, the second positioning structure 460, the second positioning post 462, the second positioning ball 464, the first connector 480, the second connector 482,

The first manifold 520, the inlet flow channel 522, the second groove 524, the connecting portion 526, the fourth positioning structure 530, the positioning groove 532, the second manifold 540, the outlet flow channel 542,

The support structure 600, the support surface 620, the first groove 640, the second through hole 642, the support member 660, the third positioning structure 680, the positioning column 682,

Base 700, adjustment structure 720, fine adjustment nut 722, tension spring 724, mobile platform 800, table top body 820, first drive mechanism 840, first slide rail 842, first slide seat 844, second drive mechanism 860, second The slide rail 862, the second slide seat 864, the first support portion 864a, the second support portion 864b, the third through hole 864c, the guide member 866,

Fluidic device 2000, reservoir 60, multi-port valve 70, sample inlet 72, sample outlet 74, manifold 76, pump assembly 80, liquid collector 90,

Imaging device 3000, first light source 12, first light emitter 13, first beam splitter 14, third lens 15, first lens 16, fourth lens 17, second lens 18, beam splitting module 40, first reflecting surface 26. A first camera 20 and a second camera 22.

Detailed ways

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present application, and should not be construed as a limitation on the present application.

In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc., or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation on this application. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more of said features. In the description of the present application, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In this application, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the application. Furthermore, this application may repeat reference numerals and/or reference letters in different instances for the purpose of simplicity and clarity, and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, this application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

It should be noted that in this application, the so-called chip refers to a solid-phase substrate and has a surface capable of connecting or immobilizing target biomolecules. The surface can be a curved surface or a flat surface. Such techniques include, for example, immobilizing a large number of probes, such as oligonucleotide fragments, on the surface of a support, and/or hybridizing probes immobilized on the surface of a support to DNA or other target molecules (such as proteins, factors or small molecules), For example, both the probe and the biomolecule to be tested are nucleic acid molecules, and at least a part of the probe can complementarily bind to the biomolecule to be tested (based on the principle of complementary base pairing), so that the target biomolecule can be linked or immobilized on the surface of the solid-phase substrate .

The Z-axis referred to in this application is the shooting direction of the imaging component, and the imaging component can be, for example, an optical imaging component, wherein the Z-axis is the optical axis of the optical imaging component, and the Z-axis is perpendicular to the plane formed by the X-axis and the Y-axis.

The working distance of the objective lens referred to in this application refers to the distance between the front edge of the objective lens and the surface of the sample when the sample is in focus.

1 and 2, an embodiment of the present application provides a sequencing system 10000 for detecting biological samples. The sequencing system 10000 includes a carrier device 1000, a fluid device 2000, an imaging device 3000, and a computing device (not shown).

The carrying device 1000 is used for carrying the reactor 300 and adjusting the temperature of the reactor 300, and the reactor 300 is connected with a plurality of polynucleotides.

Specifically, please refer to FIG. 3 , FIG. 4 and FIG. 5 , this embodiment provides a carrying device 1000 including two bases 100 , a base 700 and a mobile platform 800 . In other embodiments, more than two bases 100 may also be included. Wherein, each base 100 has a carrying surface 120 for carrying the reactor 300 , and the carrying surface 120 is provided with an accommodating groove 122 for accommodating the reactor 300 .

For example, when sequencing is performed, the reactor 300 is placed on the receiving tank 122, so that the reactor 300 placed on the base 100 is more stable in the process of being moved. The reactor 300 can provide a space for biochemical reactions, and can also be called a reaction chamber, such as a chip. Generally, the reactor 300 includes a chip frame 320 and a sheet layer 340 disposed in the chip frame 320 . The shape of the accommodating groove 122 can match the shape of the chip frame 320 of the reactor 300 , which is a rectangular accommodating groove 122 in this embodiment.

Please refer to FIG. 1 , FIG. 6 and FIG. 7 , the base 700 included in the carrying device 1000 may be a hollow structure, and the top of the base 700 may be provided with an opening. It can be easily understood that the base 700 with the hollow structure can accommodate other components provided on the base 100 . In this embodiment, two bases 100 are placed in parallel at the openings on the base 700 , and each base 100 is connected to the base 700 through an adjustment structure 720 , and the adjustment structure 720 can lengthen or shorten the space between the base 100 and the base 700 and the base 100 is disposed on the top of the base 700 , so the height of the base 100 can be changed by adjusting the structure 720 .

Referring to FIGS. 7 and 8 , the adjustment structure 720 in this embodiment includes a fine adjustment nut 722 and a tension spring 724 , and a plurality of fine adjustment nuts 722 are connected between a base 100 and the base 700 . The adjustment directions of the fine adjustment nut 722 are respectively perpendicular to the first direction and the second direction, wherein the first direction and the second direction are both horizontal directions, so in this embodiment, the direction of the fine adjustment nut 722 is the vertical direction.

One effect of setting the fine adjustment nut 722 may be that the overall height of the entire base 100 can be adjusted through the fine adjustment nut 722. Specifically, each fine adjustment nut 722 can be adjusted separately, and then the base 100 can be adjusted after rising to a certain height. Leveling is performed to ensure the imaging effect. Another effect can be to change the inclination of the base 100, for example, by adjusting only the fine adjustment nut 722 on one side of the base 100, so that the base 100 on this side is slightly raised or slightly descend, so that the base 100 has a certain inclination angle with respect to the horizontal position. Through the adjustment of the above-mentioned adjustment structure 720, the height difference between the surfaces of the respective sheets 340 in the two reactors 300 can be made not greater than 20% of the working distance of the objective lens in the imaging assembly.

Further, a plurality of tension springs 724 are connected between a base 100 and the base 700, and the elastic directions of the tension springs 724 are also perpendicular to the first direction and the second direction respectively, and the base 100 receives the force from the tension springs 724 all the time. In the direction of the base 700, the fine adjustment nut 722 and the tension spring 724 cooperate with each other, so that the base 100 is clamped in a position suspended from the base 700, and even if it is collided by other objects, the clamped base 100 produces There is also little to no shaking.

Referring to FIG. 1 and FIG. 7 again, the carrying device 1000 further includes a moving platform 800 . The moving platform 800 is located below the base 700 and can be used to support and move the base 700 . The mobile platform 800 includes a table top body 820, a first driving mechanism 840 and a second driving mechanism 860. The table top body 820 is connected to the base 700. In this embodiment, the bottom of the base 700 is provided with threaded holes for threading with the table top body 820. connect.

Specifically, the first driving mechanism 840 includes a first sliding rail 842, a first sliding seat 844 and a first motor (not shown in the figure). Wherein the first sliding rail 842 is arranged parallel to the first direction, then the first driving mechanism 840 can drive the table top body 820 to move in the first direction, and the first sliding seat 844 is mounted on the first sliding rail 842 and is driven by the first motor Moving downward along the first slide rail 842 , the table top body 820 is connected with the first sliding seat 844 , and with the movement of the first sliding seat 844 , the table top body 820 drives the base 700 to move.

The second driving mechanism 860 includes a second sliding rail 862, a second sliding seat 864 and a second motor (not shown in the figure). The second sliding rail 862 is arranged in parallel with the second direction, then the second driving mechanism 860 can drive the table top body 820 to move in the second direction, and the second sliding seat 864 is mounted on the second sliding rail 862 and driven by the second motor Moving along the second sliding rail 862 , the first sliding rail 842 is disposed on the second sliding seat 864 . The second sliding seat 864 in this embodiment includes a first support portion 864a and a second support portion 864b located on both sides of the first support portion 864a. One support portion 864a is connected to the other second support portion 864b in sequence.

It can be easily understood that the first support portion 864a has a cuboid structure, the first support portion 864a is provided with a slot along the first direction to form the first slide rail 842, and the second support portion 864b has a slope, specifically the second support portion The greater the distance between the top of the 864b and the first support portion 864a along the second direction, the lower the height thereof, so the second sliding seat 864 is in the shape of a terrace as a whole.

In addition, in some embodiments, a guide member 866 is provided in the second slide rail 862, and the guide member 866 is parallel to the second direction. The second sliding seat 864 may include a first side and a second side opposite to the first side along the second direction. In this example, the first side is the left side in FIG. 7 , and the second side is the right side in FIG. 7 . . Wherein, the first side has a third through hole 864c matching with the guide member 866, and the guide member 866 extends through the third through hole 864c to the outside of the second sliding seat 864, of course, in other embodiments, the guide member 866 A matching third through hole 864c may also be provided on the second side.

In particular, the purpose of providing the guide member 866 is that compared with the first slide rail 842, the second slide rail 862 is longer in length and the weight of the components it carries is larger, the provision of the guide member 866 can make the second slide rail 862 longer. The seat 864 can remain parallel to the second direction during movement so that the base 100 also remains stable during movement.

According to the carrying device 1000 of any of the above embodiments and the sequencing system 10000 of any of the above embodiments, a plurality of pedestals 100 that can carry the reactors 300 can be arranged on the pedestal 700 , and the pedestal 700 is moved by the moving platform 800 to move the pedestals 100, multiple reactors 300 can be adjusted simultaneously.

In a specific application scenario, for example, multiple reactors 300 and different regions of multiple reactors 300 are to be imaged, the carrying device 1000 can better adjust the focal plane to meet the imaging requirements; by adjusting the base 100 and the base The adjustment structure 720 between 700 can finely adjust, such as increasing or shortening the distance between the reactor 300 and the imaging assembly, the imaging object such as the verticality of a certain field of view (FOV) on the reactor 300 and the optical axis . The cooperation of the moving platform 800 and the adjustment structure 720 can easily and precisely realize the adjustment of the desired position/relationship of the reactor 300 and the imaging device 3000 .

It should be noted that currently, in the detection and analysis of the sample to be tested, biochemical reactions are generally involved, especially biochemical reactions involving biocatalysts such as proteases. Such biochemical reactions are sensitive to temperature, and generally it is necessary to control the temperature of the reaction environment, such as cooling or heating the chip, to ensure the effective progress of the biochemical reactions thereon.

The carrier device 1000 on the sequencing system 10000 in the present application further includes a temperature control assembly 200 for efficiently and stably controlling the temperature of the reactor 300, so that the biochemical reaction can be performed effectively.

Specifically, it should be mentioned that in this application, the so-called semiconductor refrigeration sheet is based on the Peltier effect, so that the effect of cooling or heating can be achieved. The principle of cooling or cooling is: when the current passes through the two phases When connecting conductors, there will be a temperature difference at the connection, that is, heat absorption and heat release at the connection. The effect was discovered by the Frenchman Peltier (Jean-CharlesPeltier). The amount of heat absorbed and released in the Peltier effect is determined by the magnitude of the current. People have made cooling and heating elements based on the Peltier effect, such as Peltier cooling and heating fins. When the Peltier cooling and heating sheet is energized, one side absorbs heat (cooling) and the other side releases heat (heating). The heat absorption surface and the heat release surface can be changed by changing the direction of the current.

Referring to FIG. 4 and FIG. 9 , the temperature control assembly 200 includes a refrigerator 240 , a heat dissipation module 260 and a control module 280 , and the refrigerator 240 has a first surface and a second surface opposite to each other. It can be understood that, during sequencing, the reactor 300 is placed on the bearing surface 120. In order to make the placement of the reactor 300 more stable and less prone to deviation, the bearing surface 120 is provided with an accommodating groove 122 for placing the reactor 300. The bottom wall of the groove 122 is provided with a first through hole 124 . Then, when the bearing surface 120 carries the reactor 300, the first surface of the refrigerator 240 is in contact with the reactor 300 through the first through hole 124.

Wherein, passing through the first through hole 124 means that the refrigerator 240 contacts the reactor 300 through the first through hole 124 from bottom to top, and the contact here includes both direct contact and indirect contact. Thus, the reactor 300 is cooled or heated by direct contact heat transfer or indirect contact heat transfer.

The so-called direct contact is, for example, that the first surface of the refrigerator 240 is attached to the reactor 300, and the indirect contact is, for example, the temperature control assembly 200 may further include a heat-conducting plate 220, so that the heat-conducting plate 220 abuts on the cooling plate 220. On the first surface of the cooler 240, a part of the heat-conducting plate 220 is located in the first through hole 124. For example, a heat-conducting adhesive with good thermal conductivity is used to bond the heat-conducting plate 220 and the refrigerator 240, so that the refrigerator 240 is connected to the refrigerator 240 through the heat-conducting plate 220. Reactor 300 contacts. Preferably, the material of the heat conducting plate 220 is a metal material, such as a material containing silver or aluminum. The heat-conducting plate 220 may be approximately in the shape of a cuboid, and the cross-sectional dimension of the heat-conducting plate 220 may be approximately the same as that of the refrigerator 240 , so that the structure between the heat-conducting plate 220 and the refrigerator 240 can be matched more compactly, which is conducive to efficient heat conduction.

The refrigerator 240 starts to work after being powered on. At this time, one of the first surface and the second surface starts to cool, and the other surface starts to heat. For example, after the refrigerator 240 works, the first side starts to cool, and the second side starts to heat. It can be understood that when the working current of the refrigerator 240 is different, the cooling type of the first side is different. For example, when the working current of the refrigerator 240 is forward, the first side cools; when the working current of the refrigerator 240 is reverse, the first side heats. Compared with other refrigeration elements, the refrigerator 240 has the advantages of being more environmentally friendly and not generating noise.

The heat dissipation module 260 is in contact with the second surface of the refrigerator 240 , for example, connected to the second surface through a paste-like substance with good thermal conductivity such as silicone grease, so as to take away the heat generated during the operation of the refrigerator 240 .

Referring to FIG. 10 , the heat dissipation module 260 includes a water bath 262 and a liquid component 264 . The material of the water bath 262 can be a metal material, for example, the material of the water bath 262 is copper, aluminum and other materials. The water bath 262 has a chamber for accommodating the cooling liquid, and the water bath 262 is provided with a liquid inlet 262e and a liquid outlet 262f which communicate with the chambers.

In some embodiments, as shown in FIG. 11 , FIG. 12 and FIG. 13 , the water bath 262 includes a heat dissipation plate 2622 and a cover plate 2624 , a surface of the heat dissipation plate 2622 is provided with a flow channel 2626 for accommodating the cooling liquid, and the cover plate The 2624 is sealed and closed on the flow channel 2626 to form a cavity. For example, a sealing ring 2628 is provided between the cover plate 2624 and the heat dissipation plate 2622, and the sealing ring 2628 can seal the gap between the cover plate 2624 and the heat dissipation plate 2622. Preferably, the flow channel 2626 is in a tortuous shape, which can further increase the circuit through which the cooling liquid flows, thereby enhancing the cooling effect of the water bath 262 .

For example, referring to FIG. 13 and FIG. 14 , the water bath 262 may include a heat dissipation plate 2622 and a cover plate 2624, and the heat dissipation plate 2622 is provided with a first heat dissipation area 2622a and a second heat dissipation area 2622b. The first heat dissipation area 2622a is provided with a first flow channel 262a and a second flow channel 262b, and the second heat dissipation area 2622b is provided with a third flow channel 262c and a fourth flow channel 262d.

Wherein, each flow channel has a first end and a second end facing different, the first end of the first flow channel 262a is communicated with the first end of the second flow channel 262b, and the second end of the first flow channel 262a is connected to the liquid inlet The port 262e is in communication, the second end of the third flow channel 262c is in communication with the second end of the fourth flow channel 262d, the first end of the fourth flow channel 262d is in communication with the liquid outlet 262f, and the second end of the second flow channel 262b It communicates with the first end of the third flow channel 262c.

The following takes FIG. 14 as an example to illustrate a layout of the flow channels. In other embodiments, the flow channels may also be laid out in other ways.

Referring to FIG. 14 , the second heat dissipation area 2622b is located on the side where the first end of each flow channel in the first heat dissipation area 2622a is located. The direction to the left in the figure is the direction of the first end of each flow channel, and the direction to the right in the figure is the direction of the second end of each flow channel. The cover plate 2624 is connected to the heat dissipation plate 2622 and covers the first flow channel 262a and the second flow channel. 262b, the third flow channel 262c and the fourth flow channel 262d.

It should be noted that the first flow channel 262a, the second flow channel 262b, the third flow channel 262c and the fourth flow channel 262d flow in sequence, so it can also be considered that the entire flow channel is divided into four sections, so as to obtain the above four flow channels road.

At least one flow channel in the first heat dissipation area 2622a is in a tortuous shape, and at least one flow channel in the second heat dissipation area 2622b is in a tortuous shape. For example, the second flow channel 262b and the fourth flow channel 262d are respectively in a tortuous shape, The first flow channel 262a and the third flow channel 262c are respectively straight flow channels. The tortuous flow channel can extend the length of the coolant flow path in a single flow channel. In other embodiments, the first flow channel 262a may also be in a zigzag shape, and the third flow channel 262c may also be in a zigzag shape.

The flow path of the cooling liquid in the water bath 262 of the embodiment shown in FIGS. 13 and 14 will be described below:

Please continue to refer to FIGS. 13 and 14 , the liquid inlet 262e and the liquid outlet 262f are approximately located near the middle of the entire water bath 262, and the cooling liquid flows into the first end of the first flow channel 262a from the liquid inlet 262e, and passes through the first flow channel 262a It reaches the second end of the first flow channel 262a after a straight section of the first flow channel 262a, then enters the third flow channel 262c after passing through the tortuous second flow channel 262b, and then enters the tortuous fourth flow channel 262d after passing through a straight section of the third flow channel 262c. , and finally flows out from the liquid outlet 262f at the second end of the fourth flow channel 262d.

The above-mentioned flow channel design of the water bath 262 makes full use of the space of the water bath 262 and extends the length of the flow path of the cooling liquid under the same volume, thereby bringing about a better heat dissipation effect.

In addition, referring again to FIG. 10, the liquid assembly 264 includes a connected pump 2642 and a cooler 2644, the pump 2642 is used to provide power to the cooling liquid, the cooler 2644 is used to cool the cooling liquid, and the pump 2642 is connected to the water through the liquid inlet 262e. The bathroom 262 is connected, the cooler 2644 is connected to the water bathroom 262 through the liquid outlet 262f, that is, the pump 2642 is connected to the liquid inlet 262e through pipelines, and the cooler 2644 is connected to the liquid outlet 262f through other pipelines. The cooling liquid is discharged from the liquid outlet 262f under the action of the pump 2642 and then cooled by the cooler 2644. The cooler 2644 can use the existing cooling structure, for example, it can include a copper box, which is filled with refrigerant, the pipeline for the cooling liquid to flow through the box, and the cooling liquid flows in the pipeline and the box. The coolant undergoes heat exchange, so as to achieve the purpose of cooling the coolant.

In other embodiments, the connection sequence of the cooler 2644 and the pump 2642 can also be changed. In any of the above embodiments including the liquid component 264, the pump 2642 is connected to the water bath 262 through the liquid outlet 262f, and the cooler 2644 is connected to the water bath 262 through the inlet port 262f. The liquid port 262e is connected to the water bath 262. The cooling liquid in the water bath 262 is discharged from the liquid outlet 262f under the action of the pump 2642, and passes through the cooler 2644 for heat dissipation before entering the water bath 262.

In the embodiment shown in FIG. 10 , the liquid component 264 further includes a water reservoir 2644, and the water reservoir 2644 stores the cooling liquid, so as to provide the cooling liquid for the water bath 262. The pump 2642 and the cooler 2644 are connected to the water tank 262 through pipelines, respectively. Reservoir 2644 is connected. In the circuit shown by the symbol ①, the cooling liquid is drawn out from the reservoir 2644 under the action of the pump 2642, passes through the pump 2642 and reaches the water bath 262 to absorb heat, and then passes through the cooler 2644 to dissipate heat and return to the reservoir 2644. , In the circuit shown by the mark ②, the cooling liquid in the water bath 262 is continuously pumped out under the action of the pump 2642, returns to the reservoir 2644 and flows through the cooler 2644 to be cooled, and then enters the water bath 262 to absorb heat.

The temperature control assembly 200 of any of the above-mentioned embodiments and the system including the temperature control assembly 200, the water bath 262 includes a plurality of heat dissipation areas and each heat dissipation area includes a plurality of flow channels, which has a better heat dissipation effect , the temperature control component 200 or the system including the temperature control component 200 can efficiently dissipate heat, so that the temperature of the internal environment of the device or system can be better controlled, which is especially suitable for use in devices with strict temperature requirements during operation or It also makes devices or systems that are susceptible to temperature especially suitable for operation in seasons or areas with higher temperatures.

Specifically, for example, in the first heat dissipation area 2622a, the cooling liquid enters the first flow channel 262a from the liquid inlet 262e on the first flow channel 262a, and flows through the first flow channel 262a and the second flow channel 262b in sequence. 2622a realizes multiple flows from one end of the flow channel to the other end, extending the flow path of the cooling liquid such as condensed water, which can improve the heat dissipation capacity, and at least one of the first flow channel 262a and the second flow channel 262b The zigzag shape further extends the coolant flow path within the same volume/space.

In some embodiments, the cooler 2644 further includes a cooling row, the cooling row is provided with a channel, and the channel is provided with a plurality of cooling fins for dissipating the cooling liquid flowing through the cooler 2644. Further, the cooler 2644 also A fan may be included that generates airflow towards the cooling row, resulting in better cooling.

In some embodiments, the control module 280 is connected to the refrigerator 240 and the heat dissipation module 260 for detecting the temperature of the reactor 300 and controlling the operation of the heat dissipation module 260 according to the detected temperature. For example, the control module 280 controls the working state of the pump 2642 according to the temperature of the reactor 300 , so as to control the operation of the heat dissipation module 260 .

Specifically, for example, the temperature suitable for the reactor 300 has a preset range, and when the control module 280 detects that the temperature of the reactor 300 is much lower than the maximum temperature value within the preset range (still within the preset range), the control module 280 can control the pump 2642 to stop working, so that the cooling liquid in the water bath 262 stops flowing, on the one hand to prevent the temperature of the reactor 300 from dropping too low, on the other hand, it also reduces the energy consumption. On the contrary, if the control module 280 detects When the temperature of the reactor 300 is much higher than the minimum temperature within the preset range (still within the preset range), the control module 280 can control the pump 2642 to start working again, drive the cooling liquid to flow, and improve the heat dissipation capacity.

In some embodiments, as shown in FIG. 10 , the control module 280 includes a microprocessor 284 and a temperature sensor 282 electrically connected to the microprocessor 284 . The temperature sensor 282 may be provided on the thermally conductive plate 220 for detecting the thermally conductive plate 220 The temperature of the reactor 300 is estimated by the temperature of the thermal conductive plate 220. The microprocessor 284 can also be electrically connected to the pump 2642, and can control the pump 2642 to work or stop. For example, a relay controlled by the microprocessor 284 is set in the working circuit of the pump 2642, so as to control the closing or opening of the working circuit of the pump 2642. open.

In some embodiments, the control module 280 may also control the working current of the refrigerator 240 according to the temperature sensed by the temperature sensor 282 . For example, when the temperature sensor 282 detects that the temperature of the heat-conducting plate 220 is lower than the target temperature, the microprocessor 284 can control to increase the working current of the refrigerator 240 to increase the power of the refrigerator 240, so that the refrigerator 240 can improve the heat-conducting plate 220. temperature. In this embodiment, the temperature sensor 282 is a contact temperature sensor 282 , for example, the temperature sensor 282 is in contact with the heat conducting plate 220 . Of course, the temperature sensor 282 can be a non-contact temperature sensor 282, for example, the temperature sensor 282 is an infrared temperature sensor.

In addition, the cooling liquid in the above-mentioned water bath 262 may be water. In this way, the cost of the carrier device 1000 can be reduced. In some embodiments, the cooling liquid may be a specially made cooling liquid, without any limitation. The specially made coolant can ensure that the thermal conductivity can reach a more ideal state.

From the above, it can be understood that the temperature control component 200 included in the sequencing system 10000 can adjust the temperature of the reactor 300, for example, use a cooling sheet to cool or heat the chip, and then use a metal heat sink or a water cooling system to discharge the temperature. Take heat, etc. At this time, it should be noted that the increase and decrease of temperature will cause deformation of the relevant mechanical firmware, such as thermal expansion and cooling contraction. Among them, especially the temperature control object, the temperature control assembly 200 and the structures directly connected or in contact with the above structures are easily affected, for example, the base 100 of the carrying device 1000 in the embodiment of the present application.

In the present application, the entire temperature control assembly 200 can be in contact with the reactor 300 placed in the accommodating tank through the first through hole 124 from bottom to top. A portion of the thermally conductive plate 220 is located in the first through hole 124 . 15 and FIG. 16 , in the horizontal direction shown in the figures, there is a certain gap between the edge of the heat-conducting plate 220 and the inner wall of the first through hole 124 , and the gap is used for the heat of the heat-conducting plate 220 . Expansion and contraction provide enough deformation space. The principle is similar to that there is a certain gap between the adjacent rails on the railway, leaving enough space for the deformation of the rails when the temperature changes, so as to avoid extrusion between the adjacent rails. Therefore, in this embodiment, the heat conduction plate 220 and the base 100 can be prevented from being pressed against each other as much as possible.

Referring to FIG. 9 , FIG. 15 and FIG. 17 , in some embodiments, the carrying device 1000 further includes a connecting component, and the connecting component is used for connecting the base 100 and the temperature control component 200 . The connection assembly includes a support base 420 , a first positioning structure 440 and a second positioning structure 460 . The heat-conducting plate 220 and the base 100 are connected through the support seat 420, and the support seat 420 is made of a material whose thermal deformation degree is smaller than that of the heat-conducting plate 220, so that the deformation amount of the support seat 420 is smaller under the same temperature change condition. The support base 420 is directly connected to the base 100 , so the influence on the base 100 is also small.

In the embodiment shown in FIG. 15 , the support base 420 can be installed at the bottom of the base 100 , and a through groove 422 is provided in the center of the support base 420 , and the through groove 422 communicates with the first through hole 124 on the base 100 , The size of the through groove 422 may be smaller than the size of the first through hole 124 , and a part of the refrigerator and the heat dissipation plate of the heat dissipation module 260 are located in the through groove 422 . The through grooves 422 can function as heat insulation.

In other not-shown embodiments, the support base 420 may not be provided with the through slot 422, and the heat dissipation module 260 is located above the support base 420. The groove of the temperature control component 200 located outside the first through hole 124 (in the case where a part of the temperature control component 200 is located in the first through hole 124 and a part is located outside the first through hole 124 ).

The support base 420 includes a first side and a second side opposite to the first side. The first side is provided with a first positioning structure 440 and the second side is provided with a second positioning structure 460. Both positioning structures can pass through the first side. The through hole 124 extends above the bottom wall of the receiving groove. In other embodiments, the two positioning structures may also directly pass through the base 100 and extend above the bottom wall of the accommodating groove.

Please refer to FIG. 18 , the thermally conductive plate 220 is provided with a first hole 222 that can be matched with the first positioning structure 440 and a second hole 224 that can be matched with the second positioning structure 460 respectively. The first hole 222 is a waist hole, and the waist hole is opposite to the waist hole. For the round hole, it has a higher deformation tolerance in its length direction. When the thermally conductive plate 220 expands under heat or shrinks under cold, it can deform along the length direction of the waist hole, and maintain the first hole 222 and the first position. The matching relationship of the structures 440 ensures that the thermally conductive plate 220 is still closely matched with the positioning structure after being heated, and the position does not shift.

In this embodiment, the first positioning structure 440 includes a first positioning post 442 that is matched with the first hole 222 . The first positioning post 442 includes a first end and a second end opposite to the first end. The first end is connected to the support seat 420 , the second end of the first positioning post 442 is provided with a first positioning ball 444 , and the heat conducting plate 220 is located between the first positioning ball 444 and the support seat 420 .

The second positioning structure 460 includes a second positioning post 462 matched with the second hole 224 , the second positioning post 462 includes a first end and a second end opposite to the first end, and the first end of the second positioning post 462 is connected to the support The seat 420 is connected, the second end of the second positioning post 462 is provided with a second positioning ball 464, the heat conducting plate 220 is located between the second positioning ball 464 and the support seat 420, and the reactor 300 is provided with a first positioning ball 444 The third hole for matching and the fourth hole for matching with the second positioning ball 464 .

In this embodiment, the two positioning posts cooperate with each other to position the heat-conducting plate 220 at the position to be in contact with the reactor 300 , and the arrangement of the two positioning balls, on the one hand, also positions the reactor 300 when it is placed, In addition, the placed reactor 300 is prevented from being displaced. On the other hand, the heat-conducting plate 220 cannot pass through the two positioning balls upward, and the heat-conducting plate 220 can be restricted between the positioning balls and the refrigerator.

In other embodiments, one of the first positioning structure 440 and the second positioning structure 460 includes a positioning column, which can also meet the requirements of the present invention.

In other embodiments, the heat-conducting plate 220 and the refrigerator are bonded by a heat-conducting glue with good thermal conductivity, which further ensures that the heat-conducting plate 220 will not be separated from the refrigerator.

In other embodiments, the first side of the support base 420 is provided with a first protruding portion 424 for supporting the thermally conductive plate 220 , the first protruding portion 424 is located in the first through hole 124 , and the top of the first protruding portion 424 is In contact with the bottom of the heat conducting plate 220 , there is also a gap between the first protruding portion 424 and the inner wall of the first through hole 124 , and the first positioning structure 440 is disposed on the first protruding portion 424 .

The second side of the support seat 420 is provided with a second protruding portion 426 for supporting the thermally conductive plate 220. The second protruding portion 426 is located in the first through hole 124 and has a gap with the inner wall of the first through hole 124. The two positioning structures 460 are disposed on the second protruding portion 426 . In this way, the two protrusions can reduce the contact area between the heat-conducting plate 220 and the support seat 420 , and further reduce the influence of the heat-conducting heat of the heat-conducting plate 220 on the support seat 420 .

In the carrying device 1000 of the above-mentioned embodiment, the heat-conducting plate 220 that is greatly deformed by the temperature is not directly in contact with or connected to the base 100, but is connected through the support seat 420. The heat-conducting plate 220 is connected to the inner wall of the first through hole 124. There is a gap between them, so that even if the heat-conducting plate 220 is thermally expanded, it will not squeeze the base 100 , which can prolong the service life of the base 100 .

In addition, it should also be noted that, during the temperature control assembly 200 to adjust the temperature of the reactor 300, the increase and decrease of the temperature will not only deform the relevant mechanical firmware, but may also cause the temperature control assembly 200 to contact the reactor 300. part is deformed by heat. At this time, during the deformation process, a squeezing force will be generated on the reactor 300, so that the reactor 300 is also deformed, thereby causing the flow path 360 in the reactor 300 to deform, affecting the biochemical reaction and/or increasing the focus tracking signal. Difficulty of collection.

Then, please refer to FIG. 19 and FIG. 20, in the embodiment of the present application, the reactor 300 further includes a rigid plate 380, the rigid plate 380 is arranged under the sheet layer 340, the rigid plate 380 can be a metal plate such as an aluminum plate, and the temperature control component 200 is in contact with reactor 300 through rigid plate 380 .

Specifically, the temperature control assembly 200 includes a heat conduction plate 220, a refrigerator 240 and a water bath 260 that are connected in sequence, and the heat conduction plate 220, the refrigerator 240 and the water bath 260 are stacked in sequence, and the entire temperature control assembly 200 can be worn from bottom to top The first through hole 124 is in contact with the reactor 300 placed in the receiving groove 122 , wherein the thermally conductive plate 220 is in direct contact with the rigid plate 380 .

As shown in FIG. 20 , the connecting assembly further includes a first connecting member 480 and a second connecting member 482 which are connected. The first connecting member 480 is connected to the base 100, the second connecting member 482 is connected to the water bath 260, the first connecting member 480 is a rigid connecting member, and the second connecting member 482 is an elastic connecting member.

For example, the first connecting member 480 is a screw rod, the second connecting member 482 is a spring, and the screw rod and the spring are respectively arranged in the vertical direction. The rod portion of the screw rod passes through the cover plate 264 and is threadedly connected to the support seat 420 , the spring is sleeved on the screw rod, one end of the spring elastically abuts against the head of the screw rod, and the other end of the spring elastically abuts against the head of the cover plate 264 . At the bottom, an upward force is applied to the entire temperature control assembly 200 , and the cover plate 264 is pressed against the bottom of the support base 420 .

The process of placing the reactor 300 on the bearing surface 120 in this embodiment will be described below:

The reactor 300 is placed in the holding tank 122 . In the process of moving toward the receiving groove 122 , the rigid plate 380 will first come into contact with the heat-conducting plate 220 . During the continuous movement, the spring is compressed, and the temperature control assembly 200 moves downward until the chip frame 320 of the reactor 300 is in contact with the carrier. face 120 contacts.

When the temperature control assembly 200 cools or heats the reactor 300, if the temperature control assembly 200 is heated and expands to deform in the vertical direction, the top of the temperature control assembly 200 is in contact with the rigid plate 380. The bottom is in contact with the spring, so the deformation is likely to occur downward, and the reactor 300 is not easily squeezed by the deformation. Moreover, in the temperature control assembly 200, the refrigerator 240 is flexibly connected to the water bath 262, so the extrusion of the refrigerator 240 towards the reactor 300 is also small; and the elastic force or extrusion can be transmitted downward to be released, showing These forces mainly cause the deformation and connection strength/strength of the refrigerator 240 and the water bath 262 under the carrying device 1000 , so that the carrying device 1000 can be stably and stably carried and moved, and the mechanical service life can be prolonged.

In some embodiments, the support base 420 can be made of a relatively soft material. During the continuous movement of the reactor 300, the spring is compressed, and the temperature control assembly 200 moves downward. Although the chip frame 320 of the reactor 300 is not in contact with the bearing surface 120 , the temperature control assembly 200 cannot continue to move downward after the thermal conductive plate 220 is in contact with the top of the support base 420 , so the reactor 300 stops moving. In other embodiments, the temperature control assembly 200 may stop moving after reaching the limit position connected to the base 100 .

The sequencing system 10000 and the carrying device 1000 according to any of the above embodiments include a temperature control assembly 200 for cooling or heating the reactor 300. The temperature control assembly 200 and the reactor 300 are rigidly connected, so the temperature The temperature of the control assembly 200 and/or the deformation of the reactor 300 caused by heating will not basically affect the relative positional relationship between the two. There is basically no physical space that can accommodate deformation, so the position of the reactor 300 is basically not affected by the deformation; this can reduce the change of the position of the reactor 300 caused by the extrusion of the temperature control assembly 200 to the reactor 300, and the load The device 1000 has less tolerance to the deformation of the supported and connected reactor 300 (reaction chamber), so that the reactor 300 placed therein can be tightly and firmly connected to the supporting device 1000; in this way, it is beneficial for the biochemical reaction process. Accurate focusing and fast and stable focusing on the designated surface or part of the reactor 300 are beneficial to the acquisition of clear images of signals in the reactor and the realization of accurate sequencing based on the clear images.

Further, during the sequencing process, imaging or cleaning or reaction reagents are usually passed into the reactor 300 to achieve the corresponding purpose. These reagents are generally placed in the reagent box. During sequencing, the reactor 300 is first connected to the fluid device 2000 of the sequencing system 10000, so that the reactor 300 is connected to the liquid circuit of the sequencing system 10000, and then these reagents are introduced by the power device. into the reactor 300 flow path 360 of the reactor 300 for the corresponding process.

Generally, the flow path 360 of the sequencing system 10000 is established by connecting the various components with hoses, and in order to avoid liquid leakage and to connect more closely, a manifold is used with the reactor 300 including a plurality of flow paths 360 connect. However, in actual operation, due to the change and aging of the hydraulic pressure at the connection, the connection between the manifold and the reactor 300 will inevitably have different degrees of liquid leakage. In the case where a support member 660 supporting the manifold is provided below the manifold, the support member 660 is easily damaged by the accumulation of fluid, which affects the performance stability of the carrying device 1000 and even the entire sequencing system 10000.

It should be pointed out that the manifold mentioned in this application refers to the general name of the liquid inlet pipeline and the liquid outlet pipeline between the hose of the self-fluid system and the reactor 300 .

Referring to FIG. 21 , the carrying device 1000 in this embodiment further includes a fluid connector and a support structure 600 .

Specifically, as shown in FIG. 5 and FIG. 19 , the reactor 300 has four flow paths 360, and the inlet and outlet of each flow path 360 may be located at the bottom of the reactor 300. In other embodiments, the reactor 300 may also be There is one or other number of flow paths 360 . In this embodiment, the base 100 includes a first side and a second side opposite to the second side. For example, the inlet of the flow path 360 in the reactor 300 may be close to the first side of the base 100 , and the flow path 360 of the reactor 300 may be close to the first side of the base 100 . The outlet of the base 100 may be close to the second side.

When the bearing surface carries the reactor 300, the fluid connector communicates with the flow path 360 of the reactor 300, the fluid connector can pass through the base 100 from bottom to top, and the fluid connector is located in the reactor 300 and placed in the accommodating tank After 122 , the position that communicates with the inlet and outlet of the flow path 360 .

Referring to FIGS. 21 , 22 and 23 , in this embodiment, the fluid connection member includes a first manifold 520 and a second manifold 540 , and the first manifold 520 is located on the first side of the base 100 , as shown in FIGS. 21 and 21 . FIG. 22 shows a schematic longitudinal cross-sectional view of a first manifold 520 of a structure, which has four inlet flow channels 522 for communicating with the inlets of the four flow channels 360 in the reactor 300 . The second manifold 540 is located on the second side of the base 100 , and FIG. 23 is a schematic diagram of the longitudinal interface of the second manifold 540 of a structure, which has an outlet flow channel 524 in which four branches merge into one main path. , the liquids discharged from the outlets of the four flow paths 360 of the reactor 300 converge on the main path of the outlet flow path 524 . Of course, in other embodiments, it is also feasible that the internal flow channels are manifolds of other structures.

As shown in FIGS. 21 and 22 , the support structure 600 is used to support the fluid connection. For example, the support structure 600 is located below the fluid connection and connected to the base 100 , so as to fix the fluid connection on the base 100 . In this embodiment, the fluid connector includes a first manifold 520 and a second manifold 540. Correspondingly, the supporting structure 600 also has two, which are respectively used to support the first manifold 520 and the second manifold 540, namely, the first manifold 520 and the second manifold 540. The manifold 520 and the second manifold 540 are connected to the base 100 through the support structure 600 .

The following takes the support structure 600 under the first manifold 520 as an example for description, and the support structure 600 under the second manifold 540 is also the same.

The support structure 600 includes a support surface 620 for supporting the first manifold 520 and a support member 660 . The support structure 600 may have a substantially U-shaped structure, and two ends of the U-shaped opening are screwed with the base 100 . The bottom wall of the U-shaped structure can be used as the support surface 620 of the support structure 600. The support surface 620 is provided with a first groove 640, one end of the support member 660 is set in the first groove 640, and the other end of the support member 660 is connected to the first groove The manifold 520 is provided with a second through hole 624 in the first groove 640 .

The second through hole 624 is located on the bottom wall of the first groove 640 , and the radius of the second through hole 624 is smaller than the size that one end of the support member 660 can pass through, so the support member 660 will not slip from the second through hole 624 . The bottom of the first manifold 520 has a second groove 524 matched with the other end of the support member 660 , and the other end of the support member 660 abuts in the second groove 524

In some embodiments, there may be a gap between the first manifold 520 and the supporting surface 620, and the two are only connected by the supporting member 660, and the leakage liquid on the first manifold 520 is more likely to flow into the first concave through the supporting member 660. in slot 640.

In some embodiments, the support member 660 is a spring and there may be a gap between the first manifold 520 and the support surface 620. When the reactor 300 is placed in the receiving groove 122, the first manifold 520 will press the spring downward. , correspondingly, the spring can elastically abut the first manifold 520 on the reactor 300 . Further, the two lateral sides of the first manifold 520 in the horizontal direction may have two connecting parts 526 respectively. When the reactor 300 is taken out from the accommodating tank 122 and the spring pushes upward against the first manifold 520, the two connecting parts The top of the 526 can bear against the bottom of the base 100 to prevent the first manifold 520 from coming out.

In some embodiments, the support surface 620 is provided with a third positioning structure 680, and the first manifold 520 is provided with a fourth positioning structure 530. For example, the third positioning structure 680 includes positioning posts 682, and the fourth positioning structure 530 includes The positioning grooves 532 matched with the positioning posts 682 , that is, the positioning posts 682 on the support structure 600 are inserted into the positioning grooves 532 on the first manifold 520 to complete the positioning. Of course, in another way, for example, the third positioning structure 680 includes positioning grooves 532 , it is also feasible that the fourth positioning structure 530 includes a positioning post 682 matched with the positioning groove 532 .

In some instances, the supports 660 are two and symmetrically arranged so that the first manifold 520 is supported more stably.

There is also a support structure 600 below the second manifold 540 , which is not repeated here.

The carrier device 1000 of any of the above-mentioned embodiments and the sequencing system 10000 including the carrier device 1000 are connected to the reactor 300 provided with the flow path 360 by including the fluid connector, so as to realize the fluid connector and the flow path 360 in the reactor 300 of connectivity. The fluid connection is fixed in position through the cooperation of the support surface 620 in the support structure 600 and the support 660 . When liquid leakage occurs at the connection between the fluid connection member and the flow path 360 in the reactor 300, the liquid flowing to the support member 660 along the fluid connection member can be discharged from the second through hole 624 in the first groove 640, thereby preventing One end of the support member 660 is immersed in the liquid, which ensures the normal use of the support structure 600 and makes the performance of the sequencing system 10000 more stable.

Further, the present application also provides an imaging device 3000, which is located above the carrying device 1000, and is used to excite the reactor 300 to emit optical signals and collect at least a part of the optical signals. In this embodiment, the imaging device 3000 may include a laser generator and a camera, the laser generated by the laser generator is irradiated on the sheet layer 240 after reacting with the reagent on the reactor 300, and the camera collects the image information, and the image information includes the sheet layer 240. The fluorescence information emitted by the layer 240 after being irradiated by the laser can be analyzed to obtain the sequencing result according to the fluorescence information.

For the imaging device 3000 in the embodiment of the present application, reference may be made to the optical system, the method for adjusting the optical system, and the sequencing system disclosed in the patent application CN111308726A, the contents of which are incorporated herein by reference.

Specifically, please refer to FIG. 24 , an imaging device 3000 according to an embodiment of the present application includes a first light source 12 , a first lens 16 and a beam splitting module 40 , and the beam splitting module 40 includes a first beam splitter 14 and a second lens 18 , a first camera 20 and a second camera 22 . The first lens 16 is used for receiving the first light beam from the first light source 12 and collimating the light beam onto the reactor 300 , and for receiving and collimating the light beam from the reactor 300 . The second lens 18 is used to focus the collimated light beam from the first lens 16 to the first camera 20 and the second camera 22. The first beam splitter 14 is used to split the focused beam from the second lens 18 into a second beam and a third beam. The first camera 20 is used to receive the second light beam. The second camera 22 is used to receive the third light beam.

In the above imaging device 3000, after the light is focused by the second lens 18, the beam splitter 14 divides the light into the second beam and the third beam, which can reduce the use of optical elements and shorten the optical path length of the splitting light, so that the total optical path length of the imaging device 3000 is reduced. The shortening is beneficial to the miniaturization of the imaging device 3000 and the industrialization.

Specifically, the nucleic acid sample to be tested can be placed in the reactor 300, such as in a chip. The first light source 12 may be a laser light source. In one example, the chip includes a substrate, the substrate is provided with a flow channel, and the substrate is provided with glass. When using the sequencing system of the imaging device 3000 to perform sequencing, under certain conditions, the nucleic acid, enzyme, fluorescently labeled nucleic acid to be detected, and fluorescently labeled Nucleotide reagents or solutions are mixed in the flow path to react, and then the first light source 12 emits laser light through the first lens 16 to enter a specific field of view of the chip, the fluorophores in the field of view are excited to emit fluorescence, and the fluorescence passes through the first lens 16. and the second lens 18 focus to reach the first beam splitter 14, the first beam splitter 14 splits the fluorescent convergent beam into a second beam and a third beam, the first camera 20 receives the second beam, the second camera 22 receives the third beam, A first image and a second image of the field of view are acquired respectively.

In one example, referring to FIG. 25 , the first light source 12 may include a first light emitter 13 and a third lens 15 , and the first light beam is a light beam emitted by the first light emitter 13 passing through the third lens 15 After the collimated beam, the first beam is focused to the back focal plane of the first lens 16 through the fourth lens 17 , and then is collimated and incident on the reactor 300 through the first lens 16 . In one example, the first light source 12 also includes a fiber coupler, such as a single-mode light coupler. Specifically, the imaging device 3000 is a total internal reflection imaging device 3000. The collimated light beam (parallel light beam) passing through the first lens 16 is incident on the surface of the chip at a greater than critical angle, and total internal reflection occurs, which is generated on the lower surface of the chip glass. Evanescent field (evanescent wave). The fluorescence emitted by the excited fluorescent molecules in the evanescent field is received by the first lens 16 .

When the light beam emitted by the first light source 16 excites the fluorophore of the sample under test in the reactor 300 to emit light, the light beam from the reactor 300 received by the first lens 16 is the light beam emitted by the sample under test in the reactor 300 .

The image sensors of the first camera 20 and the second camera 22 may adopt CCD or CMOS. Preferably, the image sensors used by the first camera 20 and the second camera 22 are of the same type, for example, both are CCD or both are CMOS. The first beam splitter 14 may be a dichroic mirror.

In the illustrated embodiment, the second beam is the transmitted beam of the first beam splitter 14 , and the third beam is the reflected beam of the first beam splitter 14 .

In some embodiments, the first camera 20 and the second camera 22 are disposed at 90 degrees or 270 degrees. In this way, it is convenient to configure multiple cameras of the first camera 20 and the second camera 22 into the imaging device 3000 in a limited space. Specifically, in the orientation shown in FIG. 24 , the first beam splitter 14 has a first reflection surface 26 , the angle between the first reflection surface 26 and the horizontal plane is 45 degrees, and incident on a part of the first reflection surface 26 along the horizontal direction The light beam is reflected and turned by 90 degrees to reach the second camera 22 , while another part of the light beam incident on the first reflecting surface 26 in the horizontal direction passes through the first reflecting surface 26 and is incident on the first camera 20 . In FIG. 24 , the first camera 20 and the second camera 22 are arranged 90 degrees clockwise and 270 degrees counterclockwise. In one example, the sample to be tested in the reactor 300 has two fluorescent labels, such as Cy3 and Atto647N, and the emission wavelengths of the two fluorescent molecules are 550-620 nm and 650-750 nm (the peaks are about 564 nm, respectively). and 670nm); the first beam splitter 14 is a dichroic mirror, the dichroic mirror has a high transmittance for light with a wavelength of 550-620nm, and a high reflectance for light above 650nm.

The so-called fluorescently labeled nucleotide reagents include four types of nucleotide reagents, A, T, C and G, and different kinds of nucleotide reagents can be stored in different containers respectively. In one example, four nucleotides carry the same fluorescent label, and during DNA sequencing, each round of sequencing reaction includes four base extension reactions, and the four base extension reactions are sequentially adding the four nucleotides and obtain the corresponding image.

In one example, four nucleotides have a first fluorescent label and a second fluorescent label, respectively, and the first fluorescent label and the second fluorescent label can be excited to emit different fluorescence, and the four nucleotides are used to carry out Two-color sequencing, each round of sequencing reaction includes two base extension reactions. When sequencing is performed using the sequencing system 10000 including the imaging device 3000, under certain conditions, the nucleic acid to be tested, the enzyme, and the first fluorescent label and the second fluorescent The two labeled nucleotide reagents or solutions are mixed in the flow path to react, and the first light source 12 simultaneously emits the first laser and the second laser to enter a specific field of view of the chip through the first lens 16, and the first fluorescent marker of the field of view is The first and second fluorescent markers are excited by the first laser and the second laser to emit first and second fluorescence, respectively, and the first and second fluorescence are condensed to the first beam splitter 14 through the first lens 16 and the second lens 18 ( Dichroic mirror), the dichroic mirror separates the condensed first fluorescence and second fluorescence, the first fluorescence is focused on the image plane of the first camera 20, and the second fluorescence is focused on the image plane of the second camera 22, thus, respectively A first image and a second image formed by the first fluorescence and the second fluorescence of the field of view are obtained. Base calling/sequencing is achieved based on the order of nucleotide addition and first and second image information from different rounds of sequencing reactions.

In another example, four nucleotides with fluorescent label a, fluorescent label b, double fluorescent label a-b and no label, respectively, fluorescent label a and fluorescent label b can be excited to emit different fluorescence, using the four nuclei Four-color sequencing of nucleotides is performed, and each round of sequencing reaction includes a base extension reaction. When sequencing is performed using the sequencing system including the imaging device 3000, under certain conditions, the nucleic acid to be tested, the enzyme, and the above four nucleotide reagents The first light source 12 simultaneously emits the first laser and the second laser through the first lens 16 to enter the specific field of view of the chip, and the fluorescent markers in the field of view are excited by the first laser and the second laser respectively. Emits fluorescence, which is collected by the first lens 16 and the second lens 18 to the first beam splitter 14 (dichroic mirror), which divides the fluorescence into fluorescence from fluorescent label a and autofluorescence label b The fluorescence from fluorescent marker a is focused on the image plane of the first camera 20, and the fluorescence from fluorescent marker b is focused on the image plane of the second camera 22, thereby obtaining the first image and the second image of the field of view respectively. Base calling/sequencing is achieved by combining first and second images of different rounds of sequencing reactions and merging information from the first and second images of the same round of sequencing reactions.

Referring to FIG. 1 , an embodiment of the present application provides a sequencing system 10000 , including a mobile platform 800 and an imaging device 3000 . The mobile platform is used to carry the reactor 300 , and the imaging device 3000 is the imaging device 3000 in any of the above embodiments.

The above-mentioned sequencing system 10000, since it includes the imaging device 3000 having any of the above-mentioned technical features and advantages, has a compact structure, which is favorable for miniaturization and industrialization.

Specifically, in this embodiment, the mobile platform 800 is movable. The moving platform 800 can drive the reactor 300 to move relative to the imaging device 3000 , for example, move along the direction perpendicular to the optical axis of the first lens 16 , or move along the direction parallel to the optical axis of the first lens 16 , or move along the direction inclined to the first lens 16 . 16 moves in the direction of the optical axis, so that different positions of the reactor 300 are located directly under the first lens 16, so that the sequencing system 10000 including the imaging device 3000 can be used to realize the image acquisition of the reactor 300, thereby realizing sequence determination. It can be understood that the sequencing system 10000 according to the embodiment of the present application may include the imaging device 3000 according to any of the foregoing embodiments.

In addition, the sequencing system 10000 of the embodiment of the present application further includes a computing device, the computing device can be operably coupled with the imaging device 3000 , and the computing device can be used to obtain an instruction set of the fluorescence signal from the imaging device 3000 . Specifically, the fluorescence signal collected by the imaging device 3000 is, for example, an image, and the computing device acquires the image set from the imaging device 3000, processes and recognizes the information on the image to recognize the sequence determination.

Embodiments of the present application provide a fluidic device 2000, which is connected to the carrier device 1000 and used to controllably move one or more fluorescently labeled reagents to the reactor 300 to contact the polynucleotide.

Specifically, referring to FIG. 26 , in some embodiments, the fluid device 2000 includes a reservoir 60 and a multi-port valve 70 . The storage 60 is used to store solutions, and the solutions include a variety of solutions, such as reaction solutions, buffer solutions, cleaning solutions and/or purified water, etc., including reagents for different reactions or different steps of a reaction; the multi-port valve 70 is provided with multiple A sample inlet 72 and a sample outlet 74, wherein the sample inlet 72 is used for the reagent to enter the multi-port valve 70, and the sample outlet 74 can be selectively communicated with one of the sample inlets 72, and is then realized through the set manifold 76 Connections to multiple flow paths within the reactor 300 for reagents to move from the sample outlet 74 to the reactor 300 to contact the polynucleotides.

It should be noted that the carrier device 1000 of the sequencing system 10000 may include multiple bases 100, and correspondingly, multiple reactors 300 may also be provided. In this way, the multiple injection ports 72 of the multi-port valve 70 allow multiple Each of the reactors 300 can enter different liquids, thereby realizing multiple rounds/repeated reactions, and the setting of the multi-port valve 70 can realize the injection of multiple reagents to meet the biochemical process of sequencing, and also avoid cross-contamination between reagents.

As shown in FIG. 26 , in certain embodiments, the fluidic device 2000 may also include a pump assembly 80 and a sump 90 . The pump assembly 80 is used as a negative pressure power source, so that the reagent flows into the flow path of the reactor 300 under the action of negative pressure to carry out a biochemical reaction, and the liquid collector 90 can collect the liquid flowing out of the multiple reactors 300.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc. A particular feature, structure, material, or characteristic described in this embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, The scope of the application is defined by the claims and their equivalents.

Claims (10)

1. a sequencing system, is characterized in that, comprises: A carrying device for carrying a reactor and adjusting the temperature of the reactor, a plurality of polynucleotides are connected on the reactor, and the carrying device comprises, a base having a bearing surface for carrying the reactor, The temperature control assembly includes a connected heat-conducting plate, a refrigerator and a heat-dissipating module, the refrigerator is connected to the reactor through the heat-conducting plate, and when the reactor is placed on the bearing surface, the the thermally conductive plate is rigidly connected to the reactor, and a connecting assembly, connecting the base and the temperature control assembly, the connecting assembly includes a support seat, and the heat conducting plate and the base are connected through the support seat; a fluidic device connected to the carrier device for controllably moving one or more fluorescently labeled reagents to the reactor to contact the polynucleotide; an imaging device, located above the carrying device, used to excite and collect the fluorescence generated by the fluorescent label; A computing device, operably coupled to the imaging device, includes a set of instructions for acquiring fluorescence signals from the imaging device. 2. The sequencing system according to claim 1, wherein the fluid device comprises a multi-port valve, the multi-port valve is provided with a plurality of liquid inlets and one liquid outlet, and the liquid outlet can be selected One of the liquid inlets is connected to the liquid inlet, and the liquid inlet is used for the reagent to enter the multi-way valve and move from the liquid outlet to the reactor. 3. The sequencing system according to claim 1, wherein the imaging device comprises a first light source, a first lens and a beam splitting module, and the beam splitting module comprises a first beam splitter, a second lens, a first a camera and a second camera, the first lens is used for receiving a first light beam from the first light source and collimating the first light beam onto the reactor, and for receiving the light beam from the reactor and collimating the light beam, the second lens for focusing the collimated light beam from the first lens to the first camera and the second camera, and the first beam splitter for focusing the collimated light beam from the first lens The focused beam of the second lens is divided into a second beam and a third beam, the first camera is used to receive the second beam, and the second camera is used to receive the third beam; Optionally, the first light source includes a first light source and a third lens, the optical system includes a fourth lens, and the first light beam is a light beam emitted by the first light source after passing through the third lens The first beam is focused to the back focal plane of the first lens through the fourth lens, and then is collimated and incident on the reactor through the first lens. 4 . The sequencing system according to claim 1 , wherein a first through hole is provided on the bearing surface, and the temperature control component passes through the first through hole and extends above the bearing surface. 5 . , the heat dissipation module includes a water bath, and the heat conduction plate, the refrigerator and the water bath are stacked in sequence; The refrigerator is flexibly connected to the water bath, and the water bath is connected to the base through the connection assembly; Optionally, when the bearing surface carries the reactor, the thermally conductive plate is in contact with the reactor through the first through hole, and the thermally conductive plate is not directly connected to the first through hole. touch; Optionally, there is a gap between the portion of the thermally conductive plate located in the first through hole and the inner wall of the first through hole; Optionally, the refrigerator has a first face and a second face opposite to each other, and the first face of the refrigerator passes through the first face in the case where the bearing face carries the reactor. the through hole is in contact with the reactor; The water bath is in contact with the second surface of the refrigerator, the water bath has a chamber for accommodating cooling liquid, and the water bath is provided with a liquid inlet and a liquid outlet communicating with the chamber mouth; Optionally, the water bath has a chamber for accommodating cooling liquid, the water bath is provided with a liquid inlet and a liquid outlet that communicate with the chamber, and the water bath is provided with a first heat dissipation area and The second heat dissipation area, the first heat dissipation area is provided with a first flow channel and a second flow channel, the second heat dissipation area is provided with a third flow channel and a fourth flow channel, and each of the flow channels has towards different first and second ends; The first end of the first flow channel is communicated with the first end of the second flow channel, and the second end of the first flow channel is communicated with the liquid inlet of the water bath; The second end of the third flow channel is communicated with the second end of the fourth flow channel, and the first end of the fourth flow channel is communicated with the liquid outlet of the water bath; the second end of the second flow channel communicates with the first end of the third flow channel; At least one flow channel in the first heat dissipation area is in a tortuous shape, and at least one flow channel in the second heat dissipation area is in a tortuous shape; Optionally, the water bath also includes a cooling plate and a cover plate; The heat dissipation plate is provided with the first flow channel, the second flow channel, the third flow channel and the fourth flow channel, and the cover plate is connected to the heat dissipation plate and covers the first flow channel. the chamber is formed on the channel, the second channel, the third channel and the fourth channel; Optionally, the heat dissipation module includes the water bath and a liquid assembly, the liquid assembly including a connected pump and a cooler, the pump is used to provide power to the cooling liquid, the cooler is used to cool the cooling liquid, The pump is connected with the liquid inlet of the water bath, and the cooler is connected with the liquid outlet of the water bath; Optionally, the cooler includes a cooling row with channels provided on the cooling rows, and a plurality of cooling fins are provided on the channels; Optionally, the cooler further includes a fan capable of generating airflow toward the cooling exhaust; Optionally, the liquid assembly further comprises a water reservoir, the water reservoir is used for storing cooling liquid, and the pump and the cooler are connected through the water reservoir; Optionally, the temperature control assembly further includes a control module, the control module is connected to the refrigerator and the heat dissipation module, the control module is used to detect the temperature of the reactor, and control the temperature according to the detected temperature the cooling module operation; Optionally, the control module includes a temperature sensor, and the temperature sensor is arranged on the heat-conducting plate for detecting the temperature of the heat-conducting plate; Optionally, the first ends of the first flow channel, the second flow channel, the third flow channel and the fourth flow channel are oriented in the same direction, and/or the first flow channel, the second flow channel, the third flow channel and the The second end of the fourth flow channel faces the same; Optionally, an accommodating groove is provided on the bearing surface, the first through hole is provided in the accommodating groove, and the accommodating groove is used for accommodating the reactor. 5 . The sequencing system according to claim 4 , wherein the connecting assembly comprises a first connecting piece and a second connecting piece that are connected to each other, and the first connecting piece is connected to the base through the support base. 6 . One end of the second connecting piece is connected with the first connecting piece, the other end of the second connecting piece is connected with the bottom of the water bath, the first connecting piece is a rigid connecting piece, the The second connector is an elastic connector; Optionally, the second connector is a spring; Optionally, the connection assembly further includes a first positioning structure and a second positioning structure, the support base includes a first side and a second side opposite to the first side, and the first side of the support base is provided with The first positioning structure is provided, the second positioning structure is provided on the second side of the support base, and the support base is connected with the bottom of the base; The heat-conducting plate is provided with a first hole and a second hole which can be matched with the first positioning structure and the second positioning structure respectively; Optionally, the first hole is a waist hole; Optionally, the first positioning structure includes a first positioning post that cooperates with the first hole, the first positioning post includes a first end and a second end opposite the first end, the first positioning post The first end of the first positioning column is connected with the support seat, the second end of the first positioning column is provided with a first positioning ball with a radius larger than the radius of the first hole, and the heat-conducting plate is located at the between the first positioning ball and the support seat; and/or The second positioning structure includes a second positioning column matched with the second hole, the second positioning column includes a first end and a second end opposite to the first end, the second positioning column The first end of the second positioning column is connected to the support seat, the second end of the second positioning column is provided with a second positioning ball with a radius greater than the width of the second hole, and the heat conduction plate is located in the second positioning between the ball and the support seat; Optionally, the reactor is provided with a third hole that can be matched with the first positioning ball and a fourth hole that can be matched with the second positioning ball; Optionally, the bearing surface is provided with the first through hole, the temperature control assembly passes through the first through hole and extends above the bearing surface, and the first side of the support seat is provided with the first through hole. There is a first protruding portion for supporting the heat conducting plate, the first protruding portion is located in the first through hole and has a gap with the inner wall of the first through hole; and/or The second side of the support seat is provided with a second protruding portion for supporting the heat conducting plate, the second protruding portion is located in the first through hole and between the inner wall of the first through hole with gaps. 6. The sequencing system according to any one of claims 1-5, wherein the reactor further comprises a rigid plate, and the temperature control assembly is rigidly connected to the reactor through the rigid plate; Optionally, the rigid plate is an aluminum plate. 7. The sequencing system according to any one of claims 1-5, wherein the support base is made of a material whose degree of thermal deformation is smaller than that of the thermally conductive plate. 8. The sequencing system according to any one of claims 1-7, wherein the carrying device further comprises a fluid connector, the fluid connector is connected to the fluid device, and the reactor is provided with an or a plurality of flow paths, when the bearing surface carries the reactor, the fluid connector communicates the reactor and the fluid device; Optionally, the carrying device further includes a support structure for supporting the fluid connection, the support structure being located below the fluid connection and connected to the base; The support structure includes a support surface for supporting the fluid connection piece and a support piece, the fluid connection piece is connected to the support surface through the support piece, and the support surface is provided with a first groove, One end of the support member is set in the first groove, and the other end of the support member is connected to the fluid connection member; the first groove is provided with a second through hole; Optionally, the fluid connector has a second groove matched with the other end of the support, and the other end of the support abuts in the second groove; Optionally, the flow path is provided with an inlet and an outlet, and the fluid connection includes a first manifold and a second manifold; When the bearing surface carries the reactor, the first manifold communicates with the inlet of the flow path, and the second manifold communicates with the outlet of the flow path; Optionally, it is characterized in that a third positioning structure is provided on the support surface, and the fluid connector has a fourth positioning structure matched with the third positioning structure; Optionally, the third positioning structure includes a positioning column, and the fourth positioning structure includes a positioning groove matched with the positioning column; or The third positioning structure includes a positioning groove, and the fourth positioning structure includes a positioning column matched with the positioning groove; Optionally, there is a gap between the fluid connector and the support surface; Optionally, the support is a spring such that the fluid connection resiliently abuts the reactor; Optionally, the number of the support members is two, and the two support members are arranged symmetrically. 9 . The sequencing system according to claim 1 , wherein the carrying device further comprises a base, and the base is used for accommodating a plurality of the bases, and a plurality of the bases are parallel. 10 . placed on the base, the base is provided with an adjustment structure, the base and the base are connected by the adjustment structure, and the adjustment structure is used to adjust the distance between the base and the base ; Optionally, the adjustment structure includes a fine adjustment nut for adjusting the distance between the base and the base; A plurality of the fine adjustment nuts are connected between one of the bases and the base; Optionally, the adjustment structure further includes a tension spring, and a plurality of the tension springs are connected between one of the bases and the base; Optionally, the base is a hollow structure, and the top of the base is provided with an opening; A plurality of the bases are arranged at the opening of the base; Optionally, the carrying device further comprises a mobile platform, the mobile platform is located below the base for supporting and moving the base; Optionally, the moving platform includes a table top body, a first driving mechanism and a second driving mechanism, and the table top body is connected to the base; The first driving mechanism drives the table main body to move in a first direction, the second driving mechanism drives the table main body to move in a second direction, and the first direction is perpendicular to the second direction; Optionally, the first driving mechanism includes a first sliding rail, a first sliding seat and a first motor, the first sliding rail is arranged in parallel with the first direction, and the first sliding seat is mounted on the moving along the first sliding rail on the first sliding rail and driven by the first motor, and the table main body is connected with the first sliding seat; Optionally, the second driving mechanism includes a second sliding rail, a second sliding seat and a second motor, the second sliding rail is arranged in parallel with the second direction, and the second sliding seat is installed on the The second sliding rail moves along the second sliding rail and is driven by the second motor, and the first sliding rail is arranged on the second sliding seat; Optionally, a guide member is provided in the second slide rail, and the guide member is parallel to the second direction; The second sliding seat includes a first side and a second side opposite to the first side along the second direction, the first side of the second sliding seat and the second side of the second sliding seat One side thereof has a third through hole matched with the guide piece, and the guide piece extends through the third through hole to the outside of the second sliding seat. 10. A carrying device, characterized in that, comprising: a base having a bearing surface for carrying the reactor; A temperature control assembly, the temperature control assembly includes a connected heat conduction plate, a refrigerator and a heat dissipation module, the refrigerator is connected with the reactor through the heat conduction plate, and the bearing surface of the reactor is placed on the bearing surface. case, the thermally conductive plate is rigidly connected to the reactor; and a connection assembly, the base and the temperature control assembly are connected by the connection assembly, the connection assembly includes a support seat, and the heat conduction plate and the base are connected through the support seat; Optionally, the bearing surface is provided with a first through hole, the temperature control assembly passes through the first through hole and extends above the bearing surface, the heat dissipation module includes a water bath, and the heat conduction The plate, the refrigerator and the water bath are stacked in sequence; The refrigerator is flexibly connected to the water bath, and the water bath is connected to the base through the connection assembly; Optionally, when the bearing surface carries the reactor, the thermally conductive plate is in contact with the reactor through the first through hole, and the thermally conductive plate is not directly connected to the first through hole. touch; Optionally, there is a gap between the portion of the thermally conductive plate located in the first through hole and the inner wall of the first through hole; Optionally, the refrigerator has a first face and a second face opposite to each other, and the first face of the refrigerator passes through the first face in the case where the bearing face carries the reactor. the through hole is in contact with the reactor; The water bath is in contact with the second surface of the refrigerator, the water bath has a chamber for accommodating cooling liquid, and the water bath is provided with a liquid inlet and a liquid outlet communicating with the chamber mouth; Optionally, the water bath has a chamber for accommodating cooling liquid, the water bath is provided with a liquid inlet and a liquid outlet that communicate with the chamber, and the water bath is provided with a first heat dissipation area and The second heat dissipation area, the first heat dissipation area is provided with a first flow channel and a second flow channel, the second heat dissipation area is provided with a third flow channel and a fourth flow channel, and each of the flow channels has towards different first and second ends; The first end of the first flow channel is communicated with the first end of the second flow channel, and the second end of the first flow channel is communicated with the liquid inlet of the water bath; The second end of the third flow channel is communicated with the second end of the fourth flow channel, and the first end of the fourth flow channel is communicated with the liquid outlet of the water bath; the second end of the second flow channel communicates with the first end of the third flow channel; At least one flow channel in the first heat dissipation area is in a tortuous shape, and at least one flow channel in the second heat dissipation area is in a tortuous shape; Optionally, the water bath also includes a cooling plate and a cover plate; The heat dissipation plate is provided with the first flow channel, the second flow channel, the third flow channel and the fourth flow channel, and the cover plate is connected to the heat dissipation plate and covers the first flow channel. the chamber is formed on the channel, the second channel, the third channel and the fourth channel; Optionally, the heat dissipation module includes the water bath and a liquid assembly, the liquid assembly including a connected pump and a cooler, the pump is used to provide power to the cooling liquid, the cooler is used to cool the cooling liquid, The pump is connected with the liquid inlet of the water bath, and the cooler is connected with the liquid outlet of the water bath; Optionally, the cooler includes a cooling row with channels provided on the cooling rows, and a plurality of cooling fins are provided on the channels; Optionally, the cooler further includes a fan capable of generating airflow toward the cooling exhaust; Optionally, the liquid assembly further comprises a water reservoir, the water reservoir is used for storing cooling liquid, and the pump and the cooler are connected through the water reservoir; Optionally, the temperature control assembly further includes a control module, the control module is connected to the refrigerator and the heat dissipation module, the control module is used to detect the temperature of the reactor, and control the temperature according to the detected temperature the cooling module operation; Optionally, the control module includes a temperature sensor, and the temperature sensor is arranged on the heat-conducting plate for detecting the temperature of the heat-conducting plate; Optionally, the first ends of the first flow channel, the second flow channel, the third flow channel and the fourth flow channel are oriented in the same direction, and/or the first flow channel, the second flow channel, the third flow channel and the The second end of the fourth flow channel faces the same; Optionally, an accommodating groove is provided on the bearing surface, and the first through hole is provided in the accommodating groove, and the accommodating groove is used for accommodating the reactor; Optionally, the connecting assembly includes a first connecting piece and a second connecting piece that are connected, the first connecting piece is connected to the base through the support seat, and one end of the second connecting piece is connected to the base. the first connecting piece is connected, the other end of the second connecting piece is connected with the bottom of the water bath, the first connecting piece is a rigid connecting piece, and the second connecting piece is an elastic connecting piece; Optionally, the second connector is a spring; Optionally, the connecting assembly further includes a first positioning structure and a second positioning structure, the support base includes a first side and a second side opposite to the first side, the first side is provided with the a first positioning structure, the second side is provided with the second positioning structure, and the support base is connected to the bottom of the base; The heat-conducting plate is provided with a first hole and a second hole which can be matched with the first positioning structure and the second positioning structure respectively; Optionally, the first hole is a waist hole; Optionally, the first positioning structure includes a first positioning post that cooperates with the first hole, the first positioning post includes a first end portion and a second end portion opposite to the first end portion, The first end of the first positioning column is connected to the support seat, the second end of the first positioning column is provided with a first positioning ball with a radius larger than the radius of the first hole, and the heat conduction plate between the first positioning ball and the support seat; and/or The second positioning structure includes a second positioning post matched with the second hole, the second positioning post includes a first end and a second end opposite to the first end, the second The first end of the positioning column is connected to the support seat, the second end of the second positioning column is provided with a second positioning ball with a radius larger than the width of the second hole, and the heat conducting plate is located on the first between the two positioning balls and the support seat; Optionally, the reactor is provided with a third hole that can be matched with the first positioning ball and a fourth hole that can be matched with the second positioning ball; Optionally, the bearing surface is provided with the first through hole, the temperature control assembly passes through the first through hole and extends above the bearing surface, and the first side of the support seat is provided with the first through hole. There is a first protruding portion for supporting the heat conducting plate, the first protruding portion is located in the first through hole and has a gap with the inner wall of the first through hole; and/or The second side of the support seat is provided with a second protruding portion for supporting the heat conducting plate, the second protruding portion is located in the first through hole and between the inner wall of the first through hole has a gap; Optionally, the reactor further comprises a rigid plate, and the temperature control assembly is rigidly connected to the reactor through the rigid plate; Optionally, the rigid plate is an aluminum plate; Optionally, the support seat is made of a material whose degree of thermal deformation is less than that of the thermally conductive plate; Optionally, the carrying device further comprises a fluid connector, the fluid connector is connected to the fluid device, and the reactor is provided with one or more flow paths, under the condition that the carrying surface carries the reactor , the fluid connection communicates the reactor and the fluid device; Optionally, the carrying device further includes a support structure for supporting the fluid connection, the support structure being located below the fluid connection and connected to the base; The support structure includes a support surface for supporting the fluid connection piece and a support piece, the fluid connection piece is connected to the support surface through the support piece, and the support surface is provided with a first groove, One end of the support member is set in the first groove, and the other end of the support member is connected to the fluid connection member; the first groove is provided with a second through hole; Optionally, the fluid connector has a second groove matched with the other end of the support, and the other end of the support abuts in the second groove; Optionally, the flow path is provided with an inlet and an outlet, and the fluid connection includes a first manifold and a second manifold; When the bearing surface carries the reactor, the first manifold communicates with the inlet of the flow path, and the second manifold communicates with the outlet of the flow path; Optionally, a third positioning structure is provided on the support surface, and the fluid connector has a fourth positioning structure matched with the third positioning structure; Optionally, the third positioning structure includes a positioning column, and the fourth positioning structure includes a positioning groove matched with the positioning column; or The third positioning structure includes a positioning groove, and the fourth positioning structure includes a positioning column matched with the positioning groove; Optionally, there is a gap between the fluid connector and the support surface; Optionally, the support is a spring such that the fluid connection resiliently abuts the reactor; Optionally, the number of the support members is two, and the two support members are symmetrically arranged; Optionally, the carrying device further includes a base, the base is used for accommodating a plurality of the bases, the multiple bases are placed on the base in parallel, and the base is provided with an adjustment structure, so The base and the base are connected through the adjustment structure, and the adjustment structure is used to adjust the distance between the base and the base; Optionally, the adjustment structure includes a fine adjustment nut for adjusting the distance between the base and the base; A plurality of the fine adjustment nuts are connected between one of the bases and the base; Optionally, the adjustment structure further includes a tension spring, and a plurality of the tension springs are connected between one of the bases and the base; Optionally, the base is a hollow structure, and the top of the base is provided with an opening; A plurality of the bases are arranged at the opening of the base; Optionally, the carrying device further comprises a mobile platform, the mobile platform is located below the base for supporting and moving the base; Optionally, the moving platform includes a table top body, a first driving mechanism and a second driving mechanism, and the table top body is connected to the base; The first driving mechanism drives the table main body to move in a first direction, the second driving mechanism drives the table main body to move in a second direction, and the first direction is perpendicular to the second direction; Optionally, the first driving mechanism includes a first sliding rail, a first sliding seat and a first motor, the first sliding rail is arranged in parallel with the first direction, and the first sliding seat is mounted on the moving along the first sliding rail on the first sliding rail and driven by the first motor, and the table main body is connected with the first sliding seat; Optionally, the second driving mechanism includes a second sliding rail, a second sliding seat and a second motor, the second sliding rail is arranged in parallel with the second direction, and the second sliding seat is installed on the The second sliding rail moves along the second sliding rail and is driven by the second motor, and the first sliding rail is arranged on the second sliding seat; Optionally, a guide member is provided in the second slide rail, and the guide member is parallel to the second direction; The second sliding seat includes a first side and a second side opposite to the first side along the second direction, the first side of the second sliding seat and the second side of the second sliding seat One side of the middle has a third through hole matched with the guide piece, and the guide piece extends through the third through hole to the outside of the second sliding seat.

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