CN221670965U - Electronic atomization device - Google Patents

Abstract

The embodiment of the application discloses an electronic atomization device, which comprises: a suction nozzle defining an air outlet for the aerosol to escape the atomizer; a body removably coupled with the suction nozzle, the body comprising: a liquid storage chamber for storing a liquid matrix; an atomizing element for atomizing the liquid matrix to produce an aerosol; a filler tube including a filler port exposed outside the body for injection of the liquid matrix, and at least a portion of the filler tube extending into the liquid storage cavity; the suction nozzle is internally provided with a first sealing piece, and the first sealing piece is used for sealing the liquid injection port when the suction nozzle is connected with the main body. In this way, the user can self-inject the liquid matrix into the electronic atomizing device.

Description

Electronic atomization device

[Technical field]

The embodiments of the present application relate to the field of atomization technology, and in particular to an electronic atomization device.

[Background technology]

Traditional tobacco products (e.g., cigarettes, cigars, etc.) burn tobacco to produce smoke during use, and there are products in the prior art that release compounds by heating without burning to replace these traditional tobacco products. Examples of such products are electronic atomization devices, which generally include a liquid storage chamber for storing an atomizable liquid matrix, and an atomization element for heating and atomizing the liquid matrix to produce an inhalable vapor or aerosol, and the liquid matrix may contain nicotine and/or a fragrance and/or an aerosol-generating substance (e.g., glycerin).

This type of electronic atomization device usually adopts a closed system structure, and the liquid matrix is pre-injected into the electronic atomization device by the manufacturer of the electronic atomization device. Distributors or consumer users in the sales area cannot re-inject the liquid matrix according to demand, and the user lacks the possibility to choose the type of liquid matrix.

[Utility Model Content]

In response to the above technical problems, an embodiment of the present application provides an electronic atomization device with an open liquid injection system, which can facilitate distributors or consumer users to inject an atomizable liquid matrix into the electronic atomization device according to their needs.

An electronic atomization device, comprising:

a mouthpiece defining an air outlet for allowing aerosol to escape from the atomizer;

A main body is removably connected to the nozzle, and the main body comprises:

A liquid storage chamber, used for storing a liquid matrix;

an atomizing element, for atomizing the liquid matrix to generate an aerosol;

an injection tube, the injection tube comprising an injection port exposed outside the main body for injecting the liquid matrix, and at least a portion of the injection tube extends into the liquid storage cavity;

Wherein, a first sealing member is arranged in the suction nozzle, and the first sealing member is used to seal the liquid injection port when the suction nozzle is connected to the main body.

In one embodiment, the liquid storage chamber contains a liquid storage medium for absorbing and storing the liquid matrix, and at least a portion of the liquid injection tube extends into the liquid storage medium.

In one embodiment, the liquid storage medium includes a first surface and a second surface that are oppositely disposed, and a through hole that runs through the first surface and the second surface, and the injection tube passes through the first surface and extends into the through hole.

In one of the embodiments, the main body defines a receiving cavity for receiving at least a portion of the suction nozzle, and the liquid injection port is disposed in the receiving cavity.

In one of the embodiments, the suction nozzle includes an open end arranged opposite to the air outlet, and the first sealing member is exposed at the open end, so that when the suction nozzle is received by the receiving cavity, the first sealing member covers the liquid injection port and seals the liquid injection port.

In one embodiment, the electronic atomization device further comprises a second seal, which provides a seal between the nozzle and the body.

In one embodiment, one of the main body or the nozzle is provided with a buckle, and the other is provided with a slot, and the buckle and the slot are connected to the main body through interference fit;

Wherein, the outer surface of the buckle is arc-shaped.

In one embodiment, the main body further includes a third sealing member for sealing the liquid storage chamber, and the liquid injection tube is a part of the third sealing member.

In one of the embodiments, the third sealing member is further provided with a ventilation hole for connecting the liquid storage chamber with the outside.

In one embodiment, the third sealing member defines a receiving chamber, in which an absorption element for absorbing condensed droplets in the aerosol is received, and the absorption element is provided with a vent hole for the aerosol to flow into the nozzle.

In one of the embodiments, a partition plate is provided in the receiving chamber, and the partition plate divides the receiving chamber into a first part and a second part, the absorption element is arranged in the first part, and the second part is connected to the ventilation hole.

In one of the embodiments, a mounting hole spaced apart from the vent hole is provided on the absorption element, and the absorption element surrounds the injection tube through the mounting hole.

The present application also provides an electronic atomization device, including:

a main body, defining a liquid storage cavity therein for storing a liquid matrix;

A suction nozzle connected to the main body;

an atomizing element, for atomizing the liquid matrix to generate an aerosol;

The main body is provided with a liquid injection port for injecting the liquid matrix into the liquid storage cavity;

The liquid storage cavity contains a liquid storage medium for absorbing and storing the liquid matrix, and the liquid storage medium includes a first surface and a second surface arranged opposite to each other, and a through hole running through the first surface and the second surface in the longitudinal direction, and the through hole is connected to the liquid injection port.

The electronic atomization device provided in the above embodiment includes a removably connected suction nozzle and a main body. When the suction nozzle and the main body of the electronic atomization device are separated, the injection port of the injection tube is exposed to the main body, so that the user can inject the liquid matrix into the main body through the injection port. After the injection is completed, the suction nozzle is connected to the main body. At this time, the suction nozzle seals the injection port to prevent the liquid matrix from leaking through the injection port. In this way, it is convenient for the user to inject the liquid matrix into the electronic atomization device according to his own needs.

【Brief Description of the Drawings】

One or more embodiments are exemplarily described by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and the figures in the drawings do not constitute proportional limitations unless otherwise stated.

FIG1 is a perspective schematic diagram of an electronic atomization device provided in one embodiment of the present application;

FIG2 is a schematic diagram of the nozzle and the main body of the electronic atomization device in FIG1 being separated from each other;

FIG3 is a schematic cross-sectional view of the electronic atomization device in FIG1 in one direction;

FIG4 is an exploded schematic diagram of the atomizing element in FIG3 in one direction;

FIG5 is a schematic diagram of the assembly of the third sealing member, the tubular body and the liquid storage medium of the electronic atomization device in FIG3 ;

FIG6 is an exploded schematic diagram of the electronic atomization device in FIG1 at a viewing angle;

FIG7 is an exploded schematic diagram of FIG6 from another viewing angle;

FIG8 is an enlarged schematic diagram of portion A in FIG3 ;

FIG. 9 is a three-dimensional schematic diagram of the third sealing member of the electronic atomization device in FIG. 3 in one direction.

[Specific implementation method]

In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to"/"fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and/or" used in this specification includes any and all combinations of one or more of the related listed items.

In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

In the embodiments of the present application, the "installation" includes fixing or restricting a component or device to a specific position or place by welding, screwing, clamping, bonding, etc. The component or device can remain stationary at the specific position or place or move within a limited range. After the component or device is fixed or restricted to a specific position or place, it may or may not be disassembled, and there is no limitation in the embodiments of the present application.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

An embodiment of the present application provides an electronic atomization device 100, as shown in Figures 1 and 2, the electronic atomization device 100 includes a main body 10 and a nozzle 20 removably connected to the main body 10, and the removable connection means that the main body 10 and the nozzle 20 can be connected to or separated from each other without significantly damaging either component. The main body 10 has a proximal end 11 and a distal end 12 arranged opposite to each other in the longitudinal direction, and the proximal end 11 defines a receiving cavity 111 for receiving at least a portion of the nozzle 20.

The removable connection method can adopt a snap connection method, where one of the main body 10 or the nozzle 20 is provided with a snap member, and the other is provided with a slot, and the nozzle 20 is removably connected to the main body 20 through the snap connection of the snap member and the slot. Specifically, as shown in FIG2 , the snap member includes a protrusion 1111 provided on the inner wall of the receiving cavity 111, and the outer surface of the protrusion 1111 is arc-shaped, and an adapted slot 210 is provided on the outer wall of the nozzle 20. When the nozzle 20 is connected to the main body 10, a part of the nozzle 20 is accommodated in the receiving cavity 111, and the snap member 1111 is snapped into the slot 210, thereby connecting the main body 10 and the nozzle 20. In this embodiment, the outer surface of the snap member 1111 is set to be an arc shape. On the one hand, the arc-shaped outer surface of the snap member 1111 can facilitate the connection or separation of the suction nozzle 20 and the main body 10. On the other hand, this snap connection method is also relatively strong, and the suction nozzle 20 is not easy to loosen from the main body 10.

In some embodiments, those skilled in the art may also use other well-known snap-on structures to achieve a removable connection between the main body 10 and the nozzle 20; and, in some embodiments, those skilled in the art may also use other removable connection methods such as magnetic connection.

As shown in FIGS. 3-5 , a hollow tubular body 13 with two ends open is provided in the main body 10 . The hollow area of the tubular body 13 defines a liquid storage chamber 131 of the electronic atomization device 100 . The liquid storage chamber 131 contains a liquid storage medium 132 . The liquid storage medium 132 includes flexible fibers, such as cotton fibers, non-woven fabrics, glass fiber ropes, etc., or includes porous materials with microporous structures, such as porous ceramics, so that the liquid storage medium 132 can absorb and store liquid matrix and transfer the liquid matrix through the internal gaps or microporous structures. An air guide tube 14 extends longitudinally in the liquid storage chamber 131 . The air guide tube 14 is used to transmit the atomized aerosol. One end of the air guide tube 14 is in communication with the air outlet 21 of the suction nozzle 20 , so that the user can inhale the atomized aerosol at the air outlet 21 .

Please continue to refer to Figure 2. An atomizing element 15 is provided in the air guide tube 14. The atomizing element 15 includes a liquid guiding element 151 and a heating element 152 combined with the liquid guiding element 151. The liquid guiding element 151 is formed with a through hole 1511 that passes through longitudinally, so that the liquid guiding element 151 has an outer surface and an inner surface. The heating element 152 is located in the through hole 1511 and combined with the inner surface. At the same time, an opening is opened in the tube wall of the air guide tube 14. A part of the liquid guiding element 151 passes through the opening and contacts with the liquid storage medium 132 to absorb the liquid matrix in the liquid storage medium 132, and transfers the liquid matrix to the heating element 152 on the inner surface. The heating element 152 heats the liquid matrix and atomizes it to generate an aerosol, and releases the aerosol into the air guide tube 14.

The liquid-conducting element 151 may also be made of flexible fibers, such as cotton fibers, non-woven fabrics, glass fiber ropes, etc., or made of porous materials with microporous structures, such as porous ceramics, so that the liquid-conducting element 151 can absorb the liquid matrix from the liquid storage medium 132 and transfer the liquid matrix to the heating element 152 for heating and atomization. Accordingly, the heating element 152 may be combined with the liquid-conducting element 151 by printing, deposition, sintering or physical assembly, or wound on the liquid-conducting element 151.

Please continue to refer to Figures 3 and 5. In order to prevent the liquid matrix in the liquid storage medium 132 from leaking out through the openings at both ends of the tubular body 13, a third sealing member 16 is further provided in the main body 10. The third sealing member 16 extends into the tubular body 13 through the openings at both ends of the tubular body 13, and is interference fit with the inner wall of the tubular body 13 to seal the liquid storage cavity 131, thereby preventing the liquid matrix stored in the liquid storage medium 132 from leaking out.

As shown in Figure 3, the main body 10 includes a battery cell 17 and a main board (not shown), and the main board is provided with a controller of the electronic atomization device 100. The heating element 152 and the battery cell 15 are electrically connected to the main board, so that the controller can control the battery cell 17 to provide the heating element 152 with the electrical energy required for heating and atomization.

An air inlet (not shown) for external air to enter is also provided in the main body 10, and a vent hole 161 is formed on the third sealing member 16, and the vent hole 161 is fluidly connected to the other end of the air duct 14, so that when the user inhales at the air outlet 21, a negative pressure is generated inside the electronic atomization device 100, and external air enters the electronic atomization device 100 through the air inlet, flows into the vent hole 161 through the internal air flow channel, and then flows into the air duct 14 from the vent hole 161, and then carries the aerosol generated in the air duct 14 to flow to the air outlet 21 of the nozzle 20 for the user to inhale.

As shown in Figures 3 and 5, the liquid storage medium 132 includes a first surface 1321 and a second surface 1322 that are relatively arranged in the longitudinal direction, and a through hole 1323 that penetrates the first surface 1321 and the second surface 1322. A liquid injection tube 162 is formed on the third sealing member 16, which passes through the first surface 1321 and extends into the through hole 1323. The liquid injection tube 162 has a liquid injection port 1621 and a liquid outlet 1622 that are relatively arranged. The liquid outlet 1622 is located in the through hole 1323. When the nozzle 20 is removed from the main body 10, the liquid injection port 1621 is exposed to the receiving cavity 111, that is, exposed to the main body 10, as shown in Figure 2, so that customers of the manufacturer of the electronic atomization device 100 can inject liquid matrix through the liquid injection port 1621 according to their own needs, and the injected liquid matrix can be absorbed by the liquid storage medium 132 and then stored in the liquid storage medium 132.

By providing the through hole 1323 on the liquid storage medium 132, on the one hand, when the liquid matrix injected from the injection port 1621 flows into the through hole 1323, the liquid matrix can diffuse to the surrounding areas in the through hole 1323 into the liquid storage medium 132, thereby improving the injection efficiency; on the other hand, the through hole 1323 penetrates the first surface 1321 and the second surface 1322 in the longitudinal direction, and the liquid matrix injected into the liquid storage medium 132 can be evenly distributed in the longitudinal direction.

As shown in Figures 3, 6 and 7, the suction nozzle 20 includes an open end 22 arranged opposite to the air outlet 21, and the suction nozzle 20 is equipped with a first sealing member 23, and the first sealing member 23 is exposed through the open end 22. The first sealing member 23 can be made of flexible materials such as silicone, rubber or latex, and can be assembled in the suction nozzle 20 by means of interference fit with the inner wall of the suction nozzle 20.

When the nozzle 20 and the main body 10 are connected, the first seal 23 covers the liquid injection port 1621. At the same time, the first seal 23 is squeezed when the nozzle 20 and the main body 10 are connected, so that the first seal 23 is elastically deformed, and then the first seal 23 elastically covers the liquid injection port 1621, so that the first seal 23 seals the liquid injection port 1621.

In summary, if the customers of the manufacturer of the electronic atomization device 100 need to inject the liquid matrix themselves, they can first remove the nozzle 20 from the main body 10, and then inject the liquid matrix into the main body 10 through the injection port 1621. After the injection is completed, the nozzle 20 is pressed into the receiving cavity 111 to make the nozzle 20 and the main body 10 snap-connected. At the same time, the first sealing member 23 is squeezed to elastically cover the injection port 1621, and the customer can then use the electronic atomization device 100 or proceed to the next sale.

It should be noted that those skilled in the art may also use other sealing methods to seal the liquid injection port 1621 , and are not limited to the sealing method of the first sealing member 23 in this embodiment.

In some embodiments, the electronic atomization device 100 is also provided with a second seal, which is used to seal the assembly gap between the nozzle 20 and the main body 10 when the nozzle 20 and the main body 10 are connected, so as to prevent external air from entering the electronic atomization device 100 through the assembly gap between the nozzle 20 and the main body 10, thereby affecting the air path inside the electronic atomization device 100.

As a specific embodiment, as shown in Figure 6, a groove is formed on the outer wall of the suction nozzle 20, and a second sealing member 24 is installed in the groove. The second sealing member 24 can be a soft rubber member such as flexible silicone, rubber or latex. When the suction nozzle 20 and the main body 10 are connected, a part of the suction nozzle 20 is accommodated in the receiving cavity 111. At this time, the second sealing member 24 is squeezed between the inner wall of the receiving cavity 111 and the outer wall of the suction nozzle 20, thereby sealing the assembly gap between the main body 10 and the suction nozzle 20.

Also, in some embodiments, as shown in FIG. 7 , the shape of the first sealing member 23 is substantially the same as the shape of the receiving cavity 111. For example, if the receiving cavity 111 of the present embodiment is a rounded rectangular shape, the shape of the first sealing member 23 is also a rounded rectangular shape; or, in some embodiments, if the receiving cavity 111 is circular, the shape of the first sealing member 23 is also circular. By setting the shape of the first sealing member 23 to be substantially the same as the shape of the receiving cavity 111, when the suction nozzle 20 is connected to the main body 10 in different directions, the first sealing member 23 can cover the injection port 1621 exposed in the receiving cavity 111 without limiting the direction of the suction nozzle 20 when connected.

In some embodiments, as shown in FIG8 , the third sealing member 16 is further formed with a ventilation hole 163 connecting the liquid storage chamber 131 and the outside air. The ventilation hole 163 is used to discharge at least part of the air in the liquid storage chamber 131. For example, as the liquid matrix is continuously injected, the volume of the air in the liquid storage chamber 131 gradually decreases, causing the air pressure in the liquid storage chamber 131 to gradually increase. If the air pressure in the liquid storage chamber 131 is too high, it will affect the smooth injection of the liquid matrix. By providing the ventilation hole 163, the air pressure balance in the liquid storage chamber 131 can be maintained, so that the liquid matrix can be smoothly injected into the liquid storage chamber 131. Alternatively, during high temperature or negative pressure testing, or during high-altitude negative pressure transportation, the air in the liquid storage chamber 131 is at least partially discharged to relieve pressure.

On the other hand, the ventilation hole 163 can also be used to add air to the liquid storage chamber 131 during the heating and atomization process to relieve the negative pressure in the liquid storage chamber 131 so that the liquid matrix can smoothly flow to the atomization element 15 for atomization.

Furthermore, in some embodiments, as shown in FIGS. 8 and 9 , the third sealing member 163 is further formed with a receiving chamber 164, in which an absorption element 165 is accommodated, and an axially penetrating vent hole 1651 is provided in the absorption element 165, wherein the vent hole 1651 is connected to the air guide tube 14 and the air outlet 21 of the suction nozzle 20, so that the aerosol formed after atomization can flow into the suction nozzle 20 through the vent hole 1651, and the absorption element 165 is used for absorbing condensed droplets formed by condensation after the high-temperature aerosol and the external cold air are mixed.

Furthermore, in some embodiments, as shown in FIG. 3 , the absorption element 165 is provided with a mounting hole 1652 spaced apart from the vent hole 1651 , and the injection tube 162 extends through the mounting hole 1652 into the liquid storage medium 132 , that is, the absorption element 165 surrounds the injection tube 162 through the mounting hole 1652 .

Further, in some embodiments, a partition plate 166 is provided in the receiving chamber 164, and the partition plate 166 divides the receiving chamber 164 into a first part 1641 and a second part 1642, wherein the absorption element 165 is received in the first part 1641, and the second part 1642 is connected to the ventilation hole 163. After the high-temperature aerosol particles absorbed by the absorption element 166 are condensed, condensate will be formed. By providing the partition plate 166, the condensate can be blocked from flowing into the ventilation hole 163, thereby preventing the condensate from clogging the ventilation hole 163. And, further, the volume of the first part 1641 is greater than the volume of the second part 1642, so that the absorption element 165 can be received more in the first part 1641 and thus absorb more unnecessary particulate matter in the aerosol.

It should be noted that the injection tube 162 can also be provided separately and not formed by the third sealing member 163. For example, a through hole (not shown) can be opened in the third sealing member 163, and the injection tube 162 is an additional tubular body. The tubular body and the through hole are installed on the third sealing member 163 by interference fit, so that the third sealing member 163 holds the tubular body.

Furthermore, in some embodiments, the liquid storage chamber 131 may not be provided with a liquid storage medium 132, and the liquid matrix may be directly injected into the liquid storage chamber 131 through the injection tube 162 for storage, and the liquid guiding element 151 may directly absorb the liquid matrix in the liquid storage chamber 131 and transfer the absorbed liquid matrix to the heating element 152 for heating and atomization.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Under the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present application as described above, which are not provided in detail for the sake of simplicity. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (13)

1. An electronic atomization device, comprising: a mouthpiece defining an air outlet for allowing aerosol to escape from the atomizer; A main body is removably connected to the nozzle, and the main body comprises: A liquid storage chamber, used for storing a liquid matrix; an atomizing element, for atomizing the liquid matrix to generate an aerosol; an injection tube, the injection tube comprising an injection port exposed outside the main body for injecting the liquid matrix, and at least a portion of the injection tube extends into the liquid storage cavity; Wherein, a first sealing member is arranged in the suction nozzle, and the first sealing member is used to seal the liquid injection port when the suction nozzle is connected to the main body. 2. The electronic atomization device according to claim 1 is characterized in that the liquid storage chamber contains a liquid storage medium for absorbing and storing the liquid matrix, and at least a portion of the liquid injection tube extends into the liquid storage medium. 3. The electronic atomization device according to claim 2 is characterized in that the liquid storage medium includes a first surface and a second surface arranged opposite to each other, and a through hole running through the first surface and the second surface, and the injection tube passes through the first surface and extends into the through hole. 4. The electronic atomization device according to claim 1 is characterized in that the main body defines a receiving cavity for receiving at least a portion of the suction nozzle, and the liquid injection port is arranged in the receiving cavity. 5. The electronic atomization device according to claim 4 is characterized in that the suction nozzle includes an open end arranged opposite to the air outlet, and the first sealing member is exposed at the open end, so that when the suction nozzle is received by the receiving cavity, the first sealing member covers the liquid injection port and thereby seals the liquid injection port. 6 . The electronic atomization device according to claim 1 , further comprising a second seal, wherein the second seal provides a seal between the nozzle and the main body. 7. The electronic atomization device according to claim 1, characterized in that one of the main body or the nozzle is provided with a snap-fit piece, and the other is provided with a slot, and the snap-fit piece and the slot are connected to the nozzle on the main body through interference fit; Wherein, the outer surface of the buckle is arc-shaped. 8. The electronic atomization device according to claim 1 is characterized in that the main body also includes a third sealing member for sealing the liquid storage chamber, and the liquid injection tube is a part of the third sealing member. 9 . The electronic atomization device according to claim 8 , wherein the third sealing member is further provided with a ventilation hole for connecting the liquid storage chamber with the outside. 10. The electronic atomization device according to claim 8 is characterized in that the third sealing member defines a receiving chamber, the receiving chamber receives an absorption element for absorbing condensed droplets in the aerosol, and the absorption element is provided with a vent hole for the aerosol to flow into the suction nozzle. 11. The electronic atomization device according to claim 10 is characterized in that a partition plate is provided in the receiving chamber, and the partition plate divides the receiving chamber into a first part and a second part, the absorption element is arranged in the first part, and the second part is connected to the vent hole. 12. The electronic atomization device according to claim 10 is characterized in that a mounting hole spaced apart from the vent hole is provided on the absorption element, and the absorption element surrounds the injection tube through the mounting hole. 13. An electronic atomization device, comprising: a main body, defining a liquid storage cavity therein for storing a liquid matrix; A suction nozzle connected to the main body; an atomizing element, for atomizing the liquid matrix to generate an aerosol; The main body is provided with a liquid injection port for injecting the liquid matrix into the liquid storage cavity; The liquid storage cavity contains a liquid storage medium for absorbing and storing the liquid matrix, and the liquid storage medium includes a first surface and a second surface arranged opposite to each other, and a through hole running through the first surface and the second surface in the longitudinal direction, and the through hole is connected to the liquid injection port.