Heat exchange device and refrigerator
By forming grooves on the inner surface of the heat exchange tube of the refrigerator and passing them onto the heat dissipation fins, the connection loosening problem caused by thermal expansion and contraction during the refrigeration process is solved, and the heat exchange efficiency and energy-saving effect are improved.
Patent Information
- Application Number
- CN202420762524.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-04-12
AI Technical Summary
During the refrigerator, the refrigeration aluminum pipes and heat-dissipating aluminum fins are heat-swelling and contracting due to the effect of refrigerant below minus 40 degrees Celsius, resulting in the loosening of the connection structure between the refrigeration pipelines and the heat-dissipating aluminum fins, thereby reducing the replacement The refrigeration efficiency of the heater.
A heat exchange device is designed in which at least one groove is formed on the inner surface of the heat exchange tube and is arranged on the heat dissipation fins. With this structure, the grooves can suppress the shrinkage of the heat exchange tube, avoid loosening of the connecting structure, and improve heat exchange efficiency.
It effectively reduces the shrinkage range of the heat exchange tube under the action of ultra-low temperature refrigerant, avoids loosening of the connecting structure, improves the overall heat exchange efficiency of the heat exchange device, reduces the working time of the refrigeration system, and achieves the energy-saving effect of the product.
Smart Images
Figure CN222481187U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of refrigerators, and in particular to a heat exchange device and a refrigerator. Background Art
[0002] As people's living standards continue to improve, refrigerators are becoming increasingly common in people's lives. The refrigeration function of refrigerators usually benefits from their internal heat exchangers. During the long-term refrigeration process of the refrigerator, the refrigeration aluminum pipes and heat dissipation aluminum fins are affected by the refrigerant at minus 40 degrees, which causes thermal expansion and contraction, resulting in the loosening of the connection structure between the refrigeration pipes and the heat dissipation aluminum fins, which seriously reduces the refrigeration efficiency of the heat exchanger, greatly prolongs the working time of the refrigeration system, and makes the product unable to achieve energy-saving effects. Utility Model Content
[0003] The utility model provides a heat exchange device to solve the problem that the existing heat exchanger expands and contracts due to the action of refrigerant during the refrigeration process, thereby causing the connection structure between the refrigeration pipeline and the heat dissipation aluminum fin to loosen, thereby seriously reducing the refrigeration efficiency of the heat exchanger.
[0004] To achieve the above-mentioned purpose, the heat exchange device proposed in the present application includes a heat exchange tube and a heat dissipation fin. The inner surface of the heat exchange tube is formed with at least one groove, and the heat exchange tube is passed through the heat dissipation fin.
[0005] Optionally, in one embodiment, a plurality of grooves are formed on the inner surface of the heat exchange tube, and the plurality of grooves are evenly distributed along the circumference of the heat exchange tube.
[0006] Optionally, in one embodiment, the shape of at least one of the grooves is triangular; and / or the depth of at least one of the grooves is 0.2 mm to 0.3 mm.
[0007] Optionally, in one embodiment, the heat exchange device has a top and a bottom that are relatively arranged, and the heat exchange tube is in a snake shape and extends from the top to the bottom; and / or, the heat exchange device also includes a liquid reservoir, which is arranged at the top of the heat exchange device, and one end of the heat exchange tube close to the bottom is connected to the liquid reservoir.
[0008] Optionally, in one embodiment, the heat exchange device includes a plurality of heat exchange tubes, and the plurality of heat exchange tubes are arranged at intervals on the heat dissipation fins; the heat exchange device also includes a shunt tube and a confluence tube, each output end of the shunt tube is respectively connected to an input end of the heat exchange tube, and each input end of the confluence tube is respectively connected to an output end of the heat exchange tube.
[0009] Optionally, in one embodiment, the heat exchange device has a top and a bottom that are relatively arranged, and the distance between two adjacent heat exchange tubes on the side close to the top is greater than the distance on the side close to the bottom.
[0010] Optionally, in one embodiment, the lengths of the plurality of heat exchange tubes are the same or approximately the same.
[0011] Optionally, in one embodiment, the heat exchange device further includes a first bracket and a second bracket, the first bracket and the second bracket are respectively arranged on both sides of the heat exchange tube and are used to fix the heat exchange tube; the number of the heat dissipating fins is multiple, and the multiple heat dissipating fins are evenly distributed between the first bracket and the second bracket, wherein the spacing between the multiple heat dissipating fins close to the bottom side is greater than the spacing between the multiple heat dissipating fins close to the top side.
[0012] Optionally, in one embodiment, the diameter of the heat exchange tube is 5 mm to 6 mm.
[0013] The present application also proposes a refrigerator, comprising a box body and the above-mentioned heat exchange device, wherein the heat exchange device is detachably arranged in the box body.
[0014] The heat exchange device provided in the present application includes a heat exchange tube and a heat dissipation fin, wherein the heat exchange tube is passed through the heat dissipation fin, and the heat exchange effect of the heat exchange device is further improved by increasing the heat exchange area through the heat exchange fin. At the same time, at least one groove is formed on the inner surface of the heat exchange tube.
[0015] It can be understood that in the present application, since at least one groove is formed on the inner surface of the heat exchange tube, when the heat exchange tube and the heat dissipation fins expand and contract under the action of the ultra-low temperature refrigerant, the groove on the inner surface of the heat exchange tube can inhibit the contraction of the heat exchange tube, thereby further reducing the contraction amplitude of the heat exchange tube under the action of the ultra-low temperature refrigerant, thereby avoiding the loosening of the connection structure between the heat exchange tube and the heat dissipation fin, and further ensuring the overall heat exchange efficiency of the heat exchange device, further reducing the working time of the refrigeration system, so as to achieve the purpose of product energy saving. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0017] Figure 1A schematic diagram of the overall structure of a heat exchange device provided in an embodiment of the present application;
[0018] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of a heat exchange tube in the heat exchange device shown;
[0019] Figure 3 A schematic diagram of the overall structure of a heat exchange device provided in another embodiment of the present application;
[0020] Figure 4 A schematic diagram of the overall structure of a refrigerator provided in an embodiment of the present application.
[0021] Description of Figure Numbers:
[0022] Label name Label name Label name 100 Heat exchange device 124 Fourth groove 161 top 110 Reservoir 125 First pipeline 162 bottom 120 Heat exchange tube 126 Second pipeline 170 Shunt pipe 121 First groove 130 First bracket 180 Manifold 122 Second groove 140 Second bracket 200 refrigerator 123 The third groove 150 Heat sink 210 Cabinet
[0023] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0025] The embodiment of the present application provides a heat exchange device 100 to solve the problem that the existing heat exchanger expands and contracts due to the action of the refrigerant during the refrigeration process, thereby causing the connection structure between the refrigeration pipe and the heat dissipation aluminum fin to loosen, thereby seriously reducing the refrigeration efficiency of the heat exchanger. The following will be described in conjunction with the accompanying drawings.
[0026] In the embodiments of the present application, Figure 1 and Figure 2 As shown, the heat exchange device 100 includes a heat exchange tube 120 and a heat dissipation fin 150, wherein the heat exchange tube 120 is passed through the heat dissipation fin 150, and the heat exchange effect of the heat exchange device 100 is further improved by increasing the heat exchange area through the heat exchange fin. At the same time, at least one groove is formed on the inner surface of the heat exchange tube 120.
[0027] It can be understood that, in the present embodiment, since at least one groove is formed on the inner surface of the heat exchange tube 120, when the heat exchange tube 120 and the heat dissipation fins 150 expand and contract under the action of the ultra-low temperature refrigerant, the groove on the inner surface of the heat exchange tube 120 can inhibit the contraction of the heat exchange tube 120, thereby further reducing the contraction amplitude of the heat exchange tube 120 under the action of the ultra-low temperature refrigerant, thereby avoiding the loosening of the connection structure between the heat exchange tube 120 and the heat dissipation fins 150, and further ensuring the overall heat exchange efficiency of the heat exchange device 100, further reducing the working time of the refrigeration system, so as to achieve the purpose of product energy saving.
[0028] In some embodiments, Figure 2 As shown, the inner surface of the heat exchange tube 120 can be formed with a plurality of grooves, and the plurality of grooves can be evenly distributed along the circumference of the heat exchange tube 120, so as to further reduce the shrinkage amplitude of the heat exchange tube 120 under the action of the ultra-low temperature refrigerant by evenly distributing the plurality of grooves, and make the outer surface of the heat exchange tube 120 under the action of the ultra-low temperature refrigerant more uniform, thereby ensuring the stable connection between the heat exchange tube 120 and the heat dissipation fins 150.
[0029] It should be noted that the specific number of grooves is not limited in this embodiment, and can be, for example, Figure 2 The first groove 121, the second groove 122, the third groove 123 and the fourth groove 124 are shown, wherein the first groove 121, the second groove 122, the third groove 123 and the fourth groove 124 are evenly distributed along the circumference of the heat exchange tube 120, so as to further reduce the shrinkage amplitude of the heat exchange tube 120 under the action of the ultra-low temperature refrigerant and achieve a more uniform outer surface of the heat exchange tube 120.
[0030] Further, such as Figure 2 As shown, the shapes of the first groove 121, the second groove 122, the third groove 123 and the fourth groove 124 can all be triangular, so that when the heat exchange tube 120 is under the action of ultra-low temperature refrigerant, the triangular first groove 121, the second groove 122, the third groove 123 and the fourth groove 124 can play a more stable anti-shrinkage effect on the heat exchange tube 120. At the same time, the groove depth of the first groove 121, the second groove 122, the third groove 123 and the fourth groove 124 can be 0.2mm to 0.3mm, thereby further improving the anti-shrinkage performance of the first groove 121, the second groove 122, the third groove 123 and the fourth groove 124 on the heat exchange tube 120.
[0031] In some embodiments, Figure 3As shown, the heat exchange device 100 may include a top 161 and a bottom 162 that are relatively arranged, and the heat exchange device 100 may also include a liquid reservoir 110, wherein the liquid reservoir 110 is arranged at the top 161 of the heat exchange device 100 and is connected to the compressor, and the heat exchange tube 120 is snake-shaped and extends from the top 161 to the bottom 162. At the same time, one end of the heat exchange tube 120 close to the bottom 162 is connected to the liquid reservoir 110.
[0032] It should be noted that when the heat exchange device 100 includes a liquid reservoir 110, the heat exchange device 100 in this embodiment can be an evaporator, and the refrigerant can flow in the heat exchange tube 120 along the direction from the top 161 to the bottom 162 to achieve the corresponding heat exchange effect. After the refrigerant flows to the bottom 162, it will flow to the liquid reservoir 110 under the action of the compressor and be collected by the liquid reservoir 110. The collected refrigerant will be recycled to the compressor, flow through the capillary tube and the condenser and flow to the heat exchange tube 120 again to complete a heat exchange cycle; when the heat exchange device 100 does not include the liquid reservoir 110, the heat exchange device 100 in this embodiment can be a condenser.
[0033] In some embodiments, Figure 3 As shown, the heat exchange device 100 may include a plurality of heat exchange tubes 120, and the plurality of heat exchange tubes 120 are arranged at intervals on the heat dissipation fins 150, so as to further improve the overall heat exchange capacity of the heat exchange device 100 by increasing the number of heat exchange tubes 120; at the same time, please continue to refer to Figure 1 The heat exchange device 100 may also include a shunt tube 170 and a conduit 180, wherein the input end of the shunt tube 170 is connected to the condenser, and each output end of the shunt tube 170 is respectively connected to the input end of a heat exchange tube 120, and at the same time, each input end of the conduit 180 is respectively connected to the output end of a heat exchange tube 120, and the output end of the conduit 180 is connected to the liquid reservoir 110.
[0034] It should be noted that the specific number of the heat exchange tubes 120 is not limited in this embodiment. For example, it can be as follows: Figure 1 The first pipe 125 and the second pipe 126 are shown, and the first pipe 125 and the second pipe 126 are arranged at intervals from each other. The diameters of the first pipe 125 and the second pipe 126 can be 5 mm to 6 mm, and the overall thickness of the first pipe 125 and the second pipe 126 after assembly can be within 30 mm. At the same time, the thickness of the heat dissipation fin 150 can be 0.2 mm, thereby further optimizing the overall volume of the heat exchange device 100, so as to ensure that the outer dimensions and thickness of the heat exchange device 100 are minimized under the same heat exchange efficiency, and the volume ratio of the product is increased as much as possible.
[0035] In some embodiments, since the heat exchange efficiency at the bottom 162 of the heat exchange device 100 is very low along the direction from the top 161 of the heat exchange device 100 to the bottom 162 of the heat exchange device 100 (that is, the air circulation direction), in order to make the distance between every two adjacent heat exchange tubes 120 on the side close to the top 161 greater than the distance between every two adjacent heat exchange tubes 120 on the side close to the bottom 162, the flow resistance in the heat exchange tube 120 is further reduced by reducing the tube path of the heat exchange tube 120, thereby further improving the heat exchange efficiency at the bottom 162 of the heat exchange device 100.
[0036] In some embodiments, Figure 1 As shown, the lengths of the multiple heat exchange tubes 120 can be the same or substantially the same, thereby improving the heat exchange efficiency and further reducing the difficulty of manufacturing the heat exchange tubes 120, so as to further save the manufacturing cost of the heat exchange tubes 120. It should be noted that in this embodiment, the lengths of the multiple heat exchange tubes 120 are not limited to be the same, but the specific length deviation values of the multiple heat exchange tubes 120 are within 5%. When the length deviation of any two of the multiple heat exchange tubes 120 is not greater than 5%, it is considered that the lengths of the multiple heat exchange tubes 120 are substantially the same.
[0037] In some embodiments, Figure 1 As shown, the heat exchange device 100 may further include a first bracket 130 and a second bracket 140, which are respectively arranged on both sides of the heat exchange tube 120 and are used to fix the heat exchange tube 120. At the same time, the number of heat dissipation fins 150 may be multiple, and the multiple heat dissipation fins 150 are evenly distributed between the first bracket 130 and the second bracket 140 to further improve the overall heat exchange capacity of the heat exchange device 100. Due to different heat exchange requirements, the spacing between the multiple heat dissipation fins 150 on the bottom 162 side may be greater than the spacing between the multiple heat dissipation fins 150 on the top 161 side (such as the top 161 of the heat exchange device 100 may correspond to a refrigeration room with a higher temperature, and the bottom 162 of the heat exchange device 100 may correspond to a freezer room with a lower temperature).
[0038] The present application also provides a refrigerator 200, see Figure 4 The refrigerator 200 includes a box body 210 and a heat exchange device 100 as in any of the above embodiments, wherein the heat exchange device 100 is detachably disposed in the box body 210 .
[0039] In the above embodiments, the description of each embodiment has its own emphasis. For parts not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. In the description of this application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.
[0040] The heat exchange device provided in the embodiment of the present application is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the idea of the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. A heat exchange device, characterized in that: It comprises a heat exchange tube and a heat dissipation fin. The inner surface of the heat exchange tube is formed with at least one groove, and the heat exchange tube is passed through the heat dissipation fin.
2. The heat exchange device according to claim 1, characterized in that: A plurality of grooves are formed on the inner surface of the heat exchange tube, and the plurality of grooves are evenly distributed along the circumference of the heat exchange tube.
3. The heat exchange device according to claim 1, characterized in that: At least one of the grooves is triangular in shape; And / or, the groove depth of at least one of the grooves is 0.2 mm to 0.3 mm.
4. The heat exchange device according to claim 1, characterized in that: The heat exchange device has a top and a bottom that are arranged opposite to each other, and the heat exchange tube is in a snake shape and extends from the top to the bottom; And / or, the heat exchange device further comprises a liquid reservoir, the liquid reservoir is arranged at the top of the heat exchange device, and one end of the heat exchange tube close to the bottom is connected to the liquid reservoir.
5. The heat exchange device according to claim 1, characterized in that: The heat exchange device comprises a plurality of heat exchange tubes, and the plurality of heat exchange tubes are arranged on the heat dissipation fins at intervals; The heat exchange device further comprises a shunt pipe and a converging pipe, each output end of the shunt pipe is respectively connected to an input end of the heat exchange pipe, and each input end of the converging pipe is respectively connected to an output end of the heat exchange pipe.
6. The heat exchange device according to claim 5, characterized in that: The heat exchange device has a top and a bottom that are arranged opposite to each other, and the distance between two adjacent heat exchange tubes on the side close to the top is greater than the distance between two adjacent heat exchange tubes on the side close to the bottom.
7. The heat exchange device according to claim 5, characterized in that: The lengths of the plurality of heat exchange tubes are the same or substantially the same.
8. The heat exchange device according to claim 4, characterized in that: The heat exchange device further includes a first bracket and a second bracket, wherein the first bracket and the second bracket are respectively arranged on both sides of the heat exchange tube and are used to fix the heat exchange tube; There are multiple heat dissipation fins, and the multiple heat dissipation fins are evenly distributed between the first bracket and the second bracket, wherein the spacing between the multiple heat dissipation fins close to the bottom side is greater than the spacing between the multiple heat dissipation fins close to the top side.
9. The heat exchange device according to claim 1, characterized in that: The diameter of the heat exchange tube is 5 mm to 6 mm.
10. A refrigerator, characterized in that: It comprises a box body and a heat exchange device as described in any one of claims 1 to 9, wherein the heat exchange device is detachably arranged in the box body.