Micro-channel radiator

By incorporating a side plate connecting the liquid inlet pipe into the microchannel radiator, the problem of flat tube deformation and breakage was solved, the connection strength was improved, and the height was reduced, thereby enhancing reliability and quality.

CN223537851UActive Publication Date: 2025-11-11常州恒创热管理系统股份有限公司
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Patent Information

Application Number
CN202423099693.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-14
Publication Date
2025-11-11
Estimated Expiration
2034-12-14

AI Technical Summary

Technical Problem

Existing microchannel heat sinks are prone to deformation and breakage when the flat tube connecting the liquid collection tube is subjected to external force, which affects product quality. Furthermore, adding heat dissipation fins to fix the liquid collection tube will increase the height of the microchannel, which cannot meet the installation requirements.

Method used

A microchannel heat sink was designed. By setting a first side plate and a second side plate on the flat tube section, and connecting the first liquid inlet pipe and the second liquid inlet pipe respectively, the connection strength is improved. The height of the device is reduced by connecting the side plate made of aluminum sheet or flat tube material to the flat tube body.

Benefits of technology

The connection strength between the liquid collection section and the flat tube section was improved, the device height was reduced, the refrigerator volume was increased, and the reliability and quality of the microchannel radiator were improved.

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Abstract

The utility model provides a micro-channel radiator, which comprises a liquid collecting part, a flat tube part and a radiating part, and is characterized in that the liquid collecting part comprises a liquid inlet tube, and the liquid inlet tube is connected with the flat tube part; the flat tube part comprises a flat tube body, a first side plate arranged at the upper part of the flat tube body and a second side plate arranged at the lower part of the flat tube body; the liquid inlet pipe comprises a first liquid inlet pipe and a second liquid inlet pipe, and the first liquid inlet pipe is connected with the flat pipe body and conveys cooling liquid to the flat pipe body; the second liquid inlet pipe is connected with the flat pipe body and outputs cooling liquid to the flat pipe body; the first side plate is connected with a first liquid inlet pipe, and the second side plate is connected with a second liquid inlet pipe; the heat dissipation part is connected with the flat pipe part. According to the micro-channel radiator, the first side plate and the second side plate are arranged, the connecting strength of the liquid collecting part and the flat pipe part is improved, the height of the micro-channel radiator is reduced, the volume of a refrigerator is increased, and the micro-channel radiator has the advantages of being high in reliability and good in quality.
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Description

Technical Field

[0001] This utility model relates to the field of refrigeration, and in particular to a microchannel radiator. Background Technology

[0002] Microchannel radiators are a type of radiator, primarily consisting of microchannel flat tubes and fins. They are widely used in refrigerators and are crucial components in the refrigeration process. Microchannel radiators are characterized by their small size, rapid heat dissipation, and high pressure resistance, and are widely used in modern refrigerator manufacturing. The liquid collection tube of a microchannel radiator connects to the flat tube flow channel. If the liquid collection tube is not welded and secured during production and use, the nearby flat tube may deform and break due to external forces, affecting product quality.

[0003] Conventional microchannel radiators often require more than one heat dissipation fin to weld and fix the side plate of the protective liquid collection tube. However, adding heat dissipation fins requires increasing the height of the microchannel radiator. Therefore, the increased height of the microchannel often cannot meet the installation requirements. Utility Model Content

[0004] The purpose of this invention is to provide a microchannel heat sink that solves the problem of deformation and breakage of the flat tube connecting the liquid collection tube in the prior art when subjected to external force.

[0005] According to one aspect of the present invention, a microchannel radiator is provided, comprising: a liquid collecting section, a flat tube section, and a heat dissipation section. The liquid collecting section includes a liquid inlet pipe connected to the flat tube section. The flat tube section includes a flat tube body, a first side plate disposed on the upper part of the flat tube body, and a second side plate disposed on the lower part of the flat tube body. The liquid inlet pipe includes a first liquid inlet pipe and a second liquid inlet pipe. The first liquid inlet pipe is connected to the flat tube body and supplies coolant to the flat tube body. The second liquid inlet pipe is connected to the flat tube body and supplies coolant to the flat tube body. The first side plate is connected to the first liquid inlet pipe, and the second side plate is connected to the second liquid inlet pipe. The heat dissipation section is connected to the flat tube section.

[0006] Furthermore, the flat tube body includes a flat tube and a bent tube, the bent tube being disposed at both ends of the flat tube, and the flat tube body includes at least one set of parallel flat tubes and bent tubes.

[0007] Furthermore, the heat dissipation section includes heat dissipation fins, which are disposed between the gaps formed by the flat tube.

[0008] Furthermore, the first side plate includes a first connecting portion, the first connecting portion is connected to the first liquid inlet pipe, the first connecting portion is bent to form a first connecting cavity, and the first liquid inlet pipe is disposed in the first connecting cavity.

[0009] Furthermore, the second side plate includes a second connecting portion, which is connected to the second liquid inlet pipe. The second connecting portion is bent to form a second connecting cavity, and the second liquid inlet pipe is disposed in the second connecting cavity.

[0010] Furthermore, the first liquid inlet pipe and the second liquid inlet pipe are connected to the flat tube body.

[0011] Furthermore, the flat tube body includes at least one flow channel, which is connected within the flat tube body. The coolant flows along the internal flow channel of the flat tube body from the first inlet pipe to the second inlet pipe.

[0012] Furthermore, the microchannel heat sink is made of aluminum.

[0013] Furthermore, the first side plate and the second side plate are aluminum sheets.

[0014] Furthermore, the first side plate and the second side plate are flat tubes.

[0015] The present invention provides a microchannel radiator, which improves the connection between the liquid collection part and the flat tube part by setting a first side plate and a second side plate, and at the same time reduces the height of the device, thereby increasing the volume of the refrigerator. It has the advantages of high reliability and high quality. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0017] Figure 1 A schematic diagram of the structure of a microchannel heat sink provided by this utility model Figure 1 .

[0018] Figure 2 A schematic diagram of the structure of a microchannel heat sink provided by this utility model Figure 2 .

[0019] Figure 3 This is a planar schematic diagram of a microchannel heat sink provided by this utility model.

[0020] Figure 4 This is a side view of a microchannel heat sink provided by the present invention.

[0021] Figure 5 This utility model provides a schematic diagram of a flat tube for manufacturing a microchannel heat sink.

[0022] Explanation of icon numbers:

[0023] 100. Microchannel radiator; 10. Liquid collection section; 11. Liquid inlet pipe; 111. First liquid inlet pipe; 112. Second liquid inlet pipe; 20. Flat tube section; 21. Flat tube body; 211. Flat tube; 212. Bend; 22. First side plate; 221. First connecting part; 23. Second side plate; 231. Second connecting part; 24. First connecting cavity; 25. Second connecting cavity; 26. Flow channel; 30. Heat dissipation section; 31. Heat dissipation fins. Detailed Implementation

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0026] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0027] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0030] See Figures 1 to 5 The microchannel radiator provided in this embodiment includes: a liquid collection section 10, a flat tube section 20, and a heat dissipation section 30. The liquid collection section 10 includes an inlet pipe 11, which is connected to the flat tube section 20. The flat tube section 20 includes a flat tube body 21, a first side plate 22 disposed on the upper part of the flat tube body 21, and a second side plate 23 disposed on the lower part of the flat tube body 21. The inlet pipe 11 includes a first inlet pipe 111 and a second inlet pipe 112. The first inlet pipe 111 is connected to the flat tube body 21 and supplies coolant to the flat tube body 21. The second inlet pipe 112 is connected to the flat tube body 21 and supplies coolant to the flat tube body 21. The first side plate 22 is connected to the first inlet pipe 111, and the second side plate 23 is connected to the second inlet pipe 112. The heat dissipation section 30 is connected to the flat tube section 20.

[0031] As a crucial component in the refrigerator's refrigeration process, the liquid collection section 10 of the radiator is typically connected to the flat tube section 20, and then dissipates heat through the heat dissipation section 30, thereby achieving coolant cooling and a refrigeration effect. In this embodiment, the liquid inlet pipe 11 of the liquid collection section 10 is connected to the flat tube section 20, and the coolant flows into the flat tube section 20 via the liquid inlet pipe 11. The flat tube section 20 includes a flat tube body 21 and a first side plate 22 and a second side plate 23, wherein the first side plate 22 and the second side plate 23 are respectively connected to the first liquid inlet pipe 111 and the second liquid inlet pipe 112 of the liquid inlet pipe 11. The purpose of providing the first side plate 22 and the second side plate 23 is that the first side plate 22 fixes the first liquid inlet pipe 111, and the second side plate 23 fixes the second liquid inlet pipe 112. The first inlet pipe 111 is connected to the flat tube body 21, and the second inlet pipe 112 is also connected to the flat tube body 21. The first inlet pipe 111 and the second inlet pipe 112 are interconnected with the flat tube body 21. Coolant enters the flat tube body 21 through the first inlet pipe 111 and flows out through the second inlet pipe 112, thus achieving coolant exchange and heat dissipation. The heat dissipation unit 30 dissipates heat during this process.

[0032] Specifically, the flat tube body 21 includes a flat tube 211 and a bent tube 212. The bent tube 212 is disposed at both ends of the flat tube 211. The flat tube body 21 includes at least one set of parallel flat tubes 211 and bent tubes 212. In this embodiment, the uppermost and lowermost flat tubes 211 are each connected to the bent tube 212 at only one end. The end of the uppermost flat tube 211 not connected to the bent tube 212 is connected to the first liquid inlet pipe 111, and the end of the lowermost flat tube 211 not connected to the bent tube 212 is connected to the second liquid inlet pipe 112. Thus, the input and output of coolant in the flat tube body 21 can be realized. The first liquid inlet pipe 111 and the second liquid inlet pipe 112 can be disposed on the same side of the flat tube body 21 or at a diagonal position of the flat tube body 21. In this embodiment, the first inlet pipe 111 supplies coolant to the flat tube body 21, and the second inlet pipe 112 supplies coolant. However, depending on the installation method of the radiator in the refrigerator, the first inlet pipe 111 can also supply coolant, and the second inlet pipe 112 can also supply coolant; these will not be elaborated further here. Multiple sets of parallel flat pipes 211 and curved pipes 212 are combined to form gaps between the flat pipes 211, and a heat dissipation unit 30 is disposed within these gaps. The heat dissipation unit 30 includes heat dissipation fins 31, which are disposed between the flat pipes 211 and the gaps formed by the flat pipes 211, achieving heat dissipation during the flow of coolant within the flat tube body 21. Simultaneously, heat dissipation fins 31 are also disposed within the gaps formed between the flat pipes 211 and the first side plate 22 and the second side plate 23 for heat dissipation. In this embodiment, the first inlet pipe 111 and the second inlet pipe 112 are connected to the flat tube body 21. The flat tube body 21 includes at least one flow channel 26, which is connected inside the flat tube body 21. Coolant flows along the flow channel 26 inside the flat tube body 21 from the first inlet pipe 111 to the second inlet pipe 112.

[0033] Further, the first side plate 22 includes a first connecting portion 221, which connects to the first liquid inlet pipe 111. The first connecting portion 221 is bent to form a first connecting cavity 24, and the first liquid inlet pipe 111 is disposed within the first connecting cavity 24. To ensure a tight connection between the first liquid inlet pipe 111 and the flat tube body 21, the first connecting portion 221 is provided. The first connecting portion 221 is annular and is bent to form the first connecting cavity 24. The first liquid inlet pipe 111 is disposed within the first connecting cavity 24, and the first connecting portion 221 fits against the first liquid inlet pipe 111. The second side plate 23 includes a second connecting portion 231, which connects to the second liquid inlet pipe 112. The second connecting portion 231 is annular and is bent to form a second connecting cavity 25. The second liquid inlet pipe 112 is disposed within the second connecting cavity 25, and the second connecting portion 231 fits against the second liquid inlet pipe 112. With the provision of the first connecting part 221 and the second connecting part 231, the connection between the first liquid inlet pipe 111, the second liquid inlet pipe 112 and the flat tube body 21 is more stable, and the microchannel heat sink provided in the embodiment has higher reliability.

[0034] Furthermore, the microchannel heat sink is made of aluminum. The first side plate 22 and the second side plate 23 are aluminum sheets, or they can be flat tubes. When the first side plate 22 and the second side plate 23 are aluminum sheets, the first liquid inlet pipe 111 and the second liquid inlet pipe 112 are not connected to the first side plate 22 and the second side plate 23, respectively; when the first side plate 22 and the second side plate 23 are flat tubes, the first liquid inlet pipe 111 and the second liquid inlet pipe 112 are connected to the first side plate 22 and the second side plate 23.

[0035] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. A microchannel heat sink, characterized in that, include: The device comprises a liquid collecting section, a flat tube section, and a heat dissipation section. The liquid collecting section includes a liquid inlet pipe connected to the flat tube section. The flat tube section includes a flat tube body, a first side plate disposed on the upper part of the flat tube body, and a second side plate disposed on the lower part of the flat tube body. The liquid inlet pipe includes a first liquid inlet pipe and a second liquid inlet pipe. The first liquid inlet pipe is connected to the flat tube body and supplies coolant to the flat tube body. The second liquid inlet pipe is connected to the flat tube body and supplies coolant to the flat tube body. The first side plate is connected to the first liquid inlet pipe, and the second side plate is connected to the second liquid inlet pipe. The heat dissipation section is connected to the flat tube section.

2. A microchannel heat sink as described in claim 1, characterized in that, The flat tube body includes a flat tube and a bent tube, with the bent tube disposed at both ends of the flat tube. The flat tube body includes at least one set of parallel flat tubes and bent tubes.

3. A microchannel heat sink as described in claim 2, characterized in that, The heat dissipation section includes heat dissipation fins, which are disposed between the gaps formed by the flat tube.

4. A microchannel heat sink as described in claim 3, characterized in that, The first side plate includes a first connecting part, which is connected to the first liquid inlet pipe. The first connecting part is bent to form a first connecting cavity, and the first liquid inlet pipe is disposed in the first connecting cavity.

5. A microchannel heat sink as described in claim 4, characterized in that, The second side plate includes a second connecting part, which is connected to the second liquid inlet pipe. The second connecting part is bent to form a second connecting cavity, and the second liquid inlet pipe is disposed in the second connecting cavity.

6. A microchannel heat sink as described in claim 5, characterized in that, The first liquid inlet pipe and the second liquid inlet pipe are connected to the flat tube body.

7. A microchannel heat sink as described in claim 6, characterized in that, The flat tube body includes at least one flow channel, which is connected within the flat tube body. The coolant flows along the internal flow channel of the flat tube body from the first inlet pipe to the second inlet pipe.

8. A microchannel heat sink as described in claim 7, characterized in that, The microchannel heat sink is made of aluminum.

9. A microchannel heat sink as described in claim 8, characterized in that, The first side plate and the second side plate are aluminum sheets.

10. A microchannel heat sink as described in claim 8, characterized in that, The first side plate and the second side plate are flat tubes.