CN113048812A

CN113048812A - Radiator and refrigeration equipment

Info

Publication number: CN113048812A
Application number: CN202110447449.2A
Authority: CN
Inventors: 周壮广; 李成林; 吴超; 徐金辉; 林肖纯
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-06-29

Abstract

The application relates to a radiator and refrigeration equipment. The heat sink includes: the tube body is arranged with the radiator and is provided with a heat exchange cavity, a medium inlet and a medium outlet which are communicated with the heat exchange cavity, and the fin is connected in the heat exchange cavity and used for exchanging heat with the medium in the heat exchange cavity. This application will treat on the heat conduction of heat dissipation object directly connects to the radiator, and the heat conduction route is short, and heat transfer is efficient. And can carry out heat exchange through body and fin and medium, greatly increased heat transfer area for the convection heat transfer efficiency of radiator is high, and heat dispersion is high. Compared with the prior art, the cold plate and the fixed pressing plate of the traditional radiator are omitted, the structural scheme of direct heat exchange is adopted, the overall weight of the radiator is reduced, and the thermal resistance of the cold plate and the heat-conducting silicone grease filled between the cold plate and the refrigerant pipe is effectively eliminated.

Description

Radiator and refrigeration equipment

Technical Field

The application relates to the technical field of variable frequency air conditioning equipment, in particular to a radiator and refrigeration equipment.

Background

In the process of converting current of the rectification inverter module, the semiconductor device generates switching loss, connection loss, strip breakage loss and the like, so that the heating power density of the rectification inverter module is higher, and the rectification inverter module needs to be radiated.

The refrigerant heat dissipation technology is to utilize a low-temperature and low-pressure refrigerant flowing out of a condenser to indirectly contact with a heating rectification inverter module through a refrigerant heat dissipation structure to dissipate heat. The traditional refrigerant heat radiation structure generally comprises a cold plate, a pressing plate and a refrigerant pipe, wherein a heat conduction path from a rectification inversion module to the cold plate is conducted to the refrigerant pipe after being soaked by the cold plate, and finally, heat is taken away by a refrigerant in the refrigerant pipe. The heat conduction path of the structure is long, and the heat conduction silica gel between the rectification inverter module and the cold plate and between the cold plate and the refrigerant pipe is needed, so that the heat resistance is large, and the heat dissipation performance is not high.

Disclosure of Invention

The application provides a radiator and refrigeration equipment with high heat dissipation performance aiming at the problem that the heat dissipation performance of the existing refrigerant heat dissipation structure is not high.

A heat sink, comprising:

the tube body is configured on the body to be radiated and is provided with a heat exchange cavity, a medium inlet and a medium outlet which are communicated with the heat exchange cavity; and

and the fins are arranged in the heat exchange cavity and used for exchanging heat with the medium in the heat exchange cavity.

In one embodiment, the tube further has a mounting surface for connecting with the object to be cooled.

In one embodiment, the pipe body comprises a side plate and two end plates opposite to each other in a first direction, the side plate and the two end plates enclose to form the heat exchange cavity, the side plate is provided with the mounting surface, and the medium inlet and the medium outlet are respectively arranged on the two end plates;

the fins are arranged on the side plates.

In one embodiment, any cross section of the side plate perpendicular to the first direction is rectangular.

In one embodiment, the fins divide the heat exchange cavity into at least two flow passages, each flow passage is communicated with the medium inlet and the medium outlet, and the flow passages are communicated with each other.

In one embodiment, the media inlet is disposed opposite the media outlet in a first direction; the fins are arranged on the inner wall of the tube body in a protruding mode along a second direction perpendicular to the first direction.

In one embodiment, the fin has a fin root end and a fin tip end oppositely arranged along the second direction, the fin root end is connected to the tube body, and the fin tip end and the heat exchange cavity have a space therebetween, and the space is used for communicating each flow passage.

In one embodiment, the area of a cross-section of the fin perpendicular to the second direction tapers from the fin root end to the fin tip end.

In one embodiment, the projected center of the media inlet is located between the projection of the fin root end and the projection of the fin tip and is arranged adjacent to the projection of the fin tip, and the projected center of the media outlet is located between the projection of the fin root end and the projection of the fin tip and is arranged adjacent to the projection of the fin tip, in any plane perpendicular to the first direction.

In one embodiment, the fin structure comprises a plurality of fins, the fins form a plurality of arrangement units, the arrangement units are sequentially arranged along a third direction intersecting with the first direction, and a first flow channel parallel to the first direction is formed between every two adjacent arrangement units;

each of the arrangement units includes at least one of the fins.

In one embodiment, each of the arrangement units includes one of the fins extending in the first direction in a long plate shape.

In one embodiment, each of the arrangement units includes a plurality of fins, the fins are arranged at intervals along the first direction, and a second flow channel parallel to the third direction is formed between two adjacent fins.

In one embodiment, a first buffer area is formed between the arrangement unit and the medium inlet, and/or a second buffer area is formed between the plurality of arrangement units and the medium outlet;

the first buffer area and the second buffer area are communicated with the medium inlet, the medium outlet and the flow passages.

In one embodiment, the heat exchanger further comprises an inlet pipe and an outlet pipe, the inlet pipe is connected to the medium inlet, the outlet pipe is connected to the medium outlet, and the inlet pipe and the outlet pipe are both communicated with the heat exchange cavity.

In addition, this application embodiment still provides a refrigeration plant, including condenser, rectification frequency conversion module and as above-mentioned any one embodiment the radiator, the body connect in rectification frequency conversion module, the export of condenser with the medium entry intercommunication, the medium export with the entry intercommunication of condenser.

Above-mentioned radiator, when actual operation, the body is installed on waiting to dispel the heat the object, treats that the heat on the heat dissipation object is through the pipe transmission to fin. After entering the heat exchange cavity from the medium inlet, the medium contacts the fins in the heat exchange cavity and the inner wall of the heat exchange cavity to cool the fins and the tube body, and then leaves the heat exchange cavity through the medium outlet. Because the cooled radiator and the object to be radiated have temperature difference, the heat on the object to be radiated is continuously conducted to the radiator and then taken away by the medium, so that the object to be radiated is kept at a lower temperature. So, carry out heat exchange through body and fin and medium, greatly increased heat transfer area for the convection heat transfer efficiency of radiator is high, and heat dispersion is high. Compared with the prior art, the cold plate and the fixed pressing plate of the traditional radiator are omitted, the structural scheme of direct heat exchange is adopted, the overall weight of the radiator is reduced, and the thermal resistance of the cold plate and the heat-conducting silicone grease filled between the cold plate and the refrigerant pipe is effectively eliminated.

Drawings

Fig. 1 is a schematic structural diagram of a heat sink in an embodiment of the present application;

FIG. 2 is an enlarged view taken at I in FIG. 1;

FIG. 3 is a side view of the heat sink shown in FIG. 1;

FIG. 4 is a partial schematic view of a heat sink according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of a heat sink according to an embodiment of the present application;

fig. 6 is a top view of the heat sink shown in fig. 5.

Description of reference numerals:

a heat sink 10; a tube body 11; a heat exchange chamber 111; a first buffer region 1111; a second buffer region 1112;

a media inlet 112; a medium outlet 113; a mounting surface 114; side plates 115; an end plate 116; a fin 12;

a fin root end 121; a fin tip 122; the arrangement unit 12A; an inlet pipe 13; an outlet pipe 14; a first direction x;

a second direction y; a third direction z; the spacing L.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The heat sink 10 provided in the embodiment of the present application is used for transferring heat of an object to be cooled to a medium, and the heat is absorbed and carried away by the flowing medium. The object to be radiated can be a rectification inverter module or other objects needing heat radiation, and the application is not limited. The medium mentioned in the embodiments of the present application may be a liquid medium or a gaseous medium, such as cold water, ice water, or a refrigerant, having a temperature lower than that of the object to be cooled.

Referring to fig. 1 and fig. 2, an embodiment of the present invention provides a heat sink 10, which includes a tube 11 and fins 12, wherein the tube 11 is disposed on a body to be cooled, the tube 11 has a heat exchanging cavity 111, and a medium inlet 112 and a medium outlet 113 communicating with the heat exchanging cavity 111, and the fins 12 are disposed in the heat exchanging cavity 111 for exchanging heat with a medium in the heat exchanging cavity 111.

In the heat sink 10, in actual operation, the tube 11 is mounted on the object to be cooled, and heat on the object to be cooled is transferred to the fins 12 through the tube 11. After entering the heat exchange chamber 111 from the medium inlet 112, the medium contacts the fins 12 in the heat exchange chamber 111 and the inner wall of the heat exchange chamber 111 to cool the fins 12 and the tube body 11, and then exits the heat exchange chamber 111 through the medium outlet 113. Because the cooled radiator 10 and the object to be cooled have a temperature difference, the heat on the object to be cooled is continuously conducted to the radiator 10 and then taken away by the medium, so that the object to be cooled is kept at a lower temperature. Thus, the tube 11 is directly disposed on the heat dissipation object, the heat conduction path is short, and the heat transfer efficiency is high. Moreover, heat exchange is performed between the tube 11 and the fins 12 and the medium, so that the heat exchange area is greatly increased, the heat convection efficiency of the heat radiator 10 is high, and the heat radiation performance is high. Compared with the prior art, the cold plate and the fixed pressing plate of the traditional radiator are omitted, the structural scheme of direct heat exchange is adopted, the overall weight of the radiator is reduced, and the thermal resistance of the cold plate and the heat-conducting silicone grease filled between the cold plate and the refrigerant pipe is effectively eliminated.

Wherein the fins 12 and the inner wall of the heat exchange cavity 111 can be connected by casting or welding.

In some embodiments, the tube 11 and the fins 12 are made of a heat conductive material, so that the tube can be integrally formed to facilitate manufacturing the heat sink 10. The tube 11 and the fins 12 may be made of iron, copper, aluminum, alloys thereof, and the like. Further, the tube 11 and the fin 12 are both made of copper, and the heat conduction efficiency is high. In other embodiments, the tube 11 may be only partially made of heat conductive material, as long as the heat of the object to be cooled can be conducted to the fins 12.

In some embodiments, the tube 11 also has a mounting surface 114 for attachment of an object to be cooled.

In practical operation, the heat of the object to be radiated is conducted to the tube 11 through the mounting surface 114, then conducted to the fins 12, and finally taken away through the medium. At this time, the heat of the object to be cooled is conducted to the heat sink 10 by surface connection, so that the heat transfer efficiency is further improved.

It should be noted that the mounting surface 114 of the tube 11 can be connected to the object to be heat-dissipated through the whole surface of the heat-conducting silicone, so that the heat transfer efficiency is high. Preferably, the media inlet 112 and the media outlet 113 are located outside of the mounting face 114 to facilitate subsequent placement of the inlet and

outlet tubes

13, 14 and also to facilitate installation of the radiator 10.

In specific embodiments, referring to fig. 1, the tube 11 includes a side plate 115 and two end plates 116 opposite to each other along the first direction x, the side plate 115 and the two end plates 116 enclose the heat exchanging cavity 111, the side plate 115 has a mounting surface 114, the medium inlet 112 and the medium outlet 113 are respectively disposed on the two end plates 116, and the fins 12 are disposed on the side plate 115.

At this time, the medium inlet 112 and the medium outlet 113 are respectively disposed on the two opposite end plates 116, and after the medium enters the heat exchange cavity 111 through the medium inlet 112, the medium can contact all the fins 12 in the heat exchange cavity 111 and then flows out through the medium outlet 113. Thus, the medium utilization rate is improved, and the heat radiation efficiency of the heat radiator 10 is also improved.

Further, any cross section of the side plate 115 perpendicular to the first direction x is rectangular. At this time, the tube body 11 is a rectangular tube, so that the radiator 10 can be manufactured and processed by using a mature rectangular tube, which is helpful for reducing the production cost of the radiator 10. In other embodiments, the shape of the tube 11 can be other shapes, and is not limited, as long as the tube 11 has a mounting surface 114 that is in surface contact with the object to be cooled.

Preferably, the fins 12 are provided on the inner wall of the side plate 115 corresponding to the mounting surface 114, so that the heat transfer path can be further shortened and the heat dissipation efficiency of the heat sink 10 can be improved.

In some embodiments, fins 12 divide heat exchange chamber 111 into at least two flow channels, each flow channel communicating with media inlet 112 and media outlet 113, each flow channel communicating with each other. Therefore, when entering the heat exchange cavity 111, the medium can flow among the flow channels, so that the medium can fully exchange heat with various parts (including the inner wall of the heat exchange cavity 111 and the fins 12) in the heat exchange cavity 111, thereby not only improving the heat exchange efficiency, but also improving the heat radiation performance of the radiator 10. Of course, in other embodiments, the heat exchange cavity 111 may be divided by the fins 12 to form several flow channels that are not communicated with each other, and only the flow channels need to be communicated with the medium inlet 112 and the medium outlet 113, and the specific form is not limited herein.

In the embodiment, referring to fig. 1, the medium inlet 112 and the medium outlet 113 are disposed opposite to each other along a first direction x, and the fins 12 are protruded from the inner wall of the tube 11 along a second direction y perpendicular to the first direction x.

At this time, when the medium enters the heat exchange cavity 111 through the medium inlet 112, the medium can be fully contacted with the fins 12, and the problem that when the fins 12 are convexly arranged on the inner wall of the tube body 11 along the first direction x, the fins 12 cannot be fully contacted with the medium, so that the heat exchange efficiency is not high can be avoided.

Further, referring to fig. 1 and 2, the fin 12 has a fin root end 121 and a fin tip end 122 oppositely arranged along the second direction y, the fin root end 121 is connected to the tube body, a space L is provided between the fin tip end 122 and the heat exchange cavity 111, the space L is used for communicating each flow channel, and the first direction x is perpendicular to the second direction y.

In practical operation, after the medium enters the heat exchange cavity 111 through the medium inlet 112, the medium enters some flow passages immediately when the medium starts to enter the heat exchange cavity 111 due to the limited opening size of the medium inlet 112. At this time, when the medium flows in the flow passage, the medium can flow to other flow passages from the interval L, so that the heat exchange cavity 111 is fully distributed, and the fins 12 and the inner wall of the heat exchange cavity 111 are cooled.

At this time, the fin tip 122 of the fin 12 and the heat exchange cavity 111 have a distance L therebetween, so that the flow channels formed by the fins 12 in a separated manner are communicated with each other through the distance L, which can be realized only by controlling the extension length of the fins 12, and the flow channels are communicated without additionally adding a structure such as a via hole on the fins 12, thereby facilitating the manufacturing and reducing the production cost.

In practice, when the tube 11 includes the side plate 115, the fin base end 121 is connected to the side plate 115.

The distance L is preferably 15% to 20% of the maximum pipe diameter of the pipe body 11. The maximum pipe diameter refers to the maximum size of the projection of the inner wall of the pipe body 11 on any plane perpendicular to the first direction x.

In a particular embodiment, with reference to fig. 2 and 3, the area of the cross section of the fin 12, perpendicular to the second direction y, tapers from a fin root end 121 to a fin tip end 122. In practical operation, when a medium enters the heat exchange cavity 111 from the medium inlet 112, the medium flows towards the flow channels near the fin root ends 121, and since the cross-sectional area of the fin root ends 121 is larger than that of the fin tip ends 122, the flow resistance of the flow channels between two adjacent fin root ends 121 is larger than that of the flow channels between two adjacent fin tip ends 122, so that the medium flows from the flow channels near the fin root ends 121 to the flow channels near the fin tip ends 122, and the medium can flow between the flow channels through the first gap. Therefore, the whole heat exchange cavity 111 can be quickly filled with the high-speed flowing medium, the flowing resistance of the medium is reduced, and the heat exchange efficiency is improved.

As can be understood, when the second direction y is directed vertically upward, the fin 12 exhibits a shape characteristic of being "narrow on top of being wide on the bottom".

Further, in any plane perpendicular to said first direction x, the center of projection of the media inlet 112 is located between the projection of the fin root end 121 and the projection of the fin tip end 122, and is arranged close to the projection of the fin tip end 122. The projected center of the media outlet 113 is located between the projection of the fin root end 121 and the projection of the fin tip end 122, and is arranged close to the projection of the fin tip end 122. Due to the arrangement, the flow resistance of the medium is small, the refrigerant with too high flow speed is prevented from being limited in the flow channels of the two fins 12 in the middle, and the heat exchange efficiency is reduced.

In some embodiments, referring to fig. 1, 2 and 4, the heat sink 10 includes a plurality of fins 12, the plurality of fins 12 form a plurality of arrangement units 12A, the plurality of arrangement units 12A are sequentially arranged along a third direction z intersecting the first direction x, and a first flow channel parallel to the first direction x is formed between adjacent arrangement units 12A. Each arrangement unit 12A includes at least one fin 12.

In operation, after entering the heat exchange chamber 111 through the medium inlet 112, the medium is split by each first flow channel and flows substantially in the first direction x to the medium outlet 112. The medium is subjected to a small flow resistance when flowing in the first flow channel and the flow path is short, so that the medium can rapidly pass through the radiator 10. In this way, the heat sink 10 does not affect the normal flow of the medium too much. Especially, when the refrigerant of the refrigeration equipment is used as a medium, the normal operation of the refrigeration equipment is not influenced.

Preferably, the third direction z is perpendicular to the first direction x.

In a specific embodiment, referring to fig. 1, 2 and 3, each arrangement unit 12A includes one fin 12, and the fin 12 extends in a long plate shape along the first direction x.

At this time, each of the arrangement units 12A is composed of a fin 12 extending in a first direction in a long plate shape, and the long plate-shaped fins 12 form first flow passages therebetween. The heat sink 10 manufactured by using the long plate-like fins 12 is easy to process.

In other embodiments, referring to fig. 4, each arrangement unit 12A includes a plurality of fins 12, and the plurality of fins 12 are arranged at intervals along the first direction x, and a second flow channel parallel to the third direction z is formed between two adjacent fins 12.

At this time, each of the arrangement units 12A is formed by arranging a plurality of fins at intervals in order in the first direction x. Because each fin 12 has an interval, a second flow channel is formed between each fin 12 in the first direction x, and the second flow channel and the first flow channel are criss-cross, so that the heat exchange area between the medium and the arrangement unit 12A is increased, and the heat dissipation efficiency is improved. Further, referring to fig. 4, the fins 12 have a needle shape. Of course, the shape of the fins 12 may take other forms, such as ribs in a V-shape, for example, the shape of "narrow top and wide bottom" in the above embodiments.

In some embodiments, referring to fig. 1, a first buffer zone 1111 is formed between the plurality of arrangement units 12A and the medium inlet 112, and/or a second buffer zone 1112 is formed between the plurality of arrangement units 12A and the medium outlet 113, and the first buffer zone 1111 and the second buffer zone communicate the medium inlet 112, the medium outlet 113 and the respective flow passages. In actual operation, when the medium enters the heat exchange cavity 111 through the medium inlet 112, the medium flows in the first buffer zone 1111 and then enters each flow channel. Before flowing out through the medium outlet 113, the medium flows out of the heat exchange cavity 111 after being converged by the second buffer area 1112. Therefore, the inner circulation formed by the flow channels at the two ends of the arrangement unit 12A in the first direction x and the inner wall of the heat exchange cavity 111 can be avoided, and meanwhile, the media can uniformly flow in each flow channel, so that the convection heat exchange efficiency is improved.

It will be appreciated that each placement unit 12A is spaced from the media inlet 112 such that the placement unit 12 as a whole forms a first buffer zone with the media inlet 112.

In some embodiments, referring to fig. 5 and 6, the radiator 10 further includes an inlet pipe 13 and an outlet pipe 14, the inlet pipe 13 is connected to the medium inlet 112, the outlet pipe 14 is connected to the medium outlet 113, and both the inlet pipe 13 and the outlet pipe 14 are communicated with the heat exchange cavity 111 for medium circulation.

In the radiator 10 provided by the embodiment of the present application, the medium flows into the pipe body 11 through the inlet pipe 13, the flow rate of the entering medium is relatively high, the first buffer area 1111 is reserved near the medium inlet 112, the second buffer area 1112 is also reserved near the medium outlet 113, and no fin 12 is arranged in the buffer area. After entering the tube 11 through the medium inlet 112, the medium will be split when flowing through the fins 12, and the medium flows forward along the flow channels between the fins 12, and the dense fins 12 will provide a large flow resistance, causing the medium to deflect toward the space L between the fin tips 122 of the fins 12 and the inner wall of the heat exchange cavity 111, further dividing the flow equally to the fin tips 122 at both sides, and then collecting in the second buffer area 1112 near the medium outlet 113, and flowing out through the medium outlet 113. In the process, the medium and the fins 12 generate heat convection, and heat conducted by the heat-dissipating object to the fins 12 through the tube body 11 is taken away, so that the function of medium heat convection is realized.

Through simulation, the heat exchange effect of the convection heat exchange type radiator 10 provided by the application is obviously higher than that of the traditional conduction type radiator 10, and under the same heating power, the cold plate pressing plate mode that the integral temperature of the chip inside the rectification frequency conversion module provided by the application radiator 10 is higher than that of the single pipe with the traditional large pipe diameter to pass in and out can be reduced by 20 ℃. Under the restriction of the internal temperature of the module, the heat power that the radiator 10 of the present application can bear is 1.72 times of that of the traditional conduction type refrigerant heat dissipation mode.

The heat sink 10 provided in the embodiment of the present application has at least the following beneficial effects: 1) the heat of the object to be radiated is conducted to the radiator 10 in a surface connection mode, and heat exchange is carried out between the radiator 10 and the medium, so that the heat conduction path is short, and the heat transfer efficiency is high. 2) The heat exchange is performed between the tube 11 and the fins 12 and the medium, so that the heat exchange area is greatly increased, the heat convection efficiency of the radiator 10 is high, and the heat radiation performance is high. 3) The fins 12 divide the heat exchange cavity 111 into at least two flow channels which are in mutual circulation, so that the medium can fully exchange heat with all parts (including the inner wall of the heat exchange cavity 111 and the fins 12) in the heat exchange cavity 111, and the heat exchange efficiency and the heat dissipation performance are improved. Compared with the prior art, the cold plate and the fixed pressing plate of the traditional radiator are omitted, the structural scheme that the radiator 10 directly exchanges heat is adopted, the overall weight of the radiator 10 is reduced, and the thermal resistance of the cold plate and the thermal grease filled between the cold plate and the refrigerant pipe is effectively eliminated.

In addition, the embodiment of the present application further provides a refrigeration device, the refrigeration device includes a condenser, a rectification frequency conversion module and the radiator 10 provided in any one of the above embodiments, the pipe 11 is connected to the rectification frequency conversion module, an outlet of the condenser is communicated with the medium inlet 112, and the medium outlet 113 is communicated with an inlet of the condenser.

In the refrigeration device, during the refrigeration process, the low-temperature and low-pressure refrigerant generated by the condenser enters the heat exchange cavity 111 from the medium inlet 112, contacts the fins 12 and the inner wall of the heat exchange cavity 111 when flowing in the heat exchange cavity 111 to cool the fins 12 and the tube body 11, and then leaves the heat exchange cavity 111 through the medium outlet 113. Because the cooled radiator 10 and the rectification frequency conversion module have temperature difference, the heat on the rectification frequency conversion module is continuously conducted to the radiator 10 and then taken away by the refrigerant, so that the rectification frequency conversion module is kept at a lower temperature. Therefore, when the low-temperature and low-pressure refrigerant generated by the condenser flows through the radiator 10, the rectification frequency conversion module connected with the radiator 10 is cooled, the utilization rate of the refrigerant is greatly improved, and energy conservation is facilitated. Moreover, the tube 11 is directly connected to the rectification frequency conversion module, so that the heat conduction path is short, and the heat transfer efficiency is high. In addition, heat exchange is performed between the tube 11 and the fins 12 and the refrigerant, so that the heat exchange area is greatly increased, and the heat radiator 10 has high heat convection efficiency and heat radiation performance. Compared with the prior art, the cold plate and the fixed pressing plate of the traditional radiator are omitted, the structural scheme of direct heat exchange is adopted, the overall weight of the radiator is reduced, and the thermal resistance of the cold plate and the heat-conducting silicone grease filled between the cold plate and the refrigerant pipe is effectively eliminated.

Since the refrigeration device includes the radiator 10, other advantages of the radiator 10 are not described herein. Wherein, the refrigeration equipment can be a refrigerator, an air conditioner and the like.

It will be appreciated that the refrigeration appliance also includes an evaporator and a compressor, the medium outlet 113 being in communication with the inlet of the evaporator, the outlet of the evaporator being in communication with the inlet of the condenser via the compressor. In this way, communication of the medium outlet 113 with the inlet of the condenser is achieved. And will not be described herein in detail.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A heat sink, comprising:

the tube body (11) is arranged on a body to be heated and is provided with a heat exchange cavity (111) and a medium inlet (112) and a medium outlet (113) which are communicated with the heat exchange cavity (111); and

and the fins (12) are arranged in the heat exchange cavity (111) and are used for exchanging heat with a medium in the heat exchange cavity (111).

2. A heat sink according to claim 1, characterised in that the tube (11) further has a mounting surface (114) for connection to said object to be cooled.

3. A radiator according to claim 2, wherein the tube (11) comprises a side plate (115) and two end plates (116) opposite along the first direction (x), the side plate (115) and the two end plates (116) enclosing to form the heat exchange cavity (111), the side plate (115) having the mounting surface (114), the medium inlet (112) and the medium outlet (113) being arranged at the two end plates (116), respectively;

the fins (12) are provided to the side plate (115).

4. A heat sink according to claim 3, characterised in that any cross section of the side plates (115) perpendicular to the first direction (x) is rectangular.

5. A radiator according to any one of claims 1 to 4, characterised in that the fins (12) divide the heat exchange chamber (111) into at least two flow channels, each of which is in communication with the medium inlet (112) and the medium outlet (113), the flow channels being in communication with each other.

6. A heat sink according to claim 5, wherein the medium inlet (112) is arranged opposite the medium outlet (113) in a first direction (x); the fins (12) are arranged on the inner wall of the tube body (11) in a protruding mode along a second direction (y) perpendicular to the first direction (x).

7. A heat sink according to claim 6, wherein the fins (12) have fin root ends (121) and fin tip ends (122) oppositely arranged along the second direction (y), the fin root ends (121) are connected to the tube body (11), and the fin tip ends (122) and the heat exchange cavity (111) have a spacing (L) therebetween for communicating each flow passage.

8. A heat sink according to claim 7, wherein the cross-section of the fin (12) perpendicular to the second direction (y) tapers in area from the fin root end (121) to the fin tip end (122).

9. A heat sink according to claim 7, wherein, in any plane perpendicular to the first direction (x), the projected centre of the media inlet (112) is located between the projection of the fin root end (121) and the projection of the fin tip (122) and is arranged close to the projection of the fin tip (122), and the projected centre of the media outlet (113) is located between the projection of the fin root end (121) and the projection of the fin tip (122) and is arranged close to the projection of the fin tip (122).

10. The heat sink according to claim 6, comprising a plurality of the fins (12), wherein the plurality of the fins (12) form a plurality of arrangement units (12A), the plurality of arrangement units (12A) are sequentially arranged along a third direction (z) intersecting the first direction (x), and a first flow passage parallel to the first direction (x) is formed between adjacent arrangement units (12A);

each of the arrangement units (12A) includes at least one of the fins (12).

11. A radiator according to claim 10, characterised in that each said arrangement unit (12A) comprises one said fin (12), said fin (12) extending in said first direction (x) in the form of a long plate.

12. A heat sink according to claim 10, wherein each of the arrangement units (12A) comprises a plurality of fins (12), and the plurality of fins (12) are arranged at intervals along the first direction (x), and a second flow channel parallel to the third direction (z) is formed between two adjacent fins (12).

13. A heat sink according to claim 10, characterised in that a first buffer zone (1111) is formed between the plurality of arrangement units (12A) and the media inlet (112) and/or a second buffer zone (1112) is formed between the plurality of arrangement units (12A) and the media outlet (113);

the first buffer zone (1111) and the second buffer zone (1112) each communicate with the medium inlet (112), the medium outlet (113) and each of the flow passages.

14. A radiator according to any one of claims 1 to 4, further comprising an inlet pipe (13) and an outlet pipe (14), said inlet pipe (13) being connected to said medium inlet (12), said outlet pipe (14) being connected to said medium outlet (13), and said inlet pipe (13) and said outlet pipe (14) both communicating with said heat exchange chamber (111).

15. Refrigeration device, characterized in that it comprises a condenser, a rectifier and inverter module and a radiator (10) according to any one of claims 1 to 14, the tube (11) being connected to the rectifier and inverter module, the outlet of the condenser communicating with the medium inlet (112) and the medium outlet (113) communicating with the inlet of the condenser.