Phase change cooling heat dissipation device

Abstract

The invention relates to the technical field of heat dissipation, and discloses a phase change cooling heat dissipation device which comprises a liquid cooling head, a liquid storage tank, a heat exchanger and a flow divider. The liquid cooling head is provided with an input pipeline and an output pipeline; the liquid storage tank is provided with a water outlet joint and a water inlet, and the water outlet joint is connected with the input pipeline; the heat exchanger comprises a plurality of condensation pipes and a plurality of fins, and one end of each condensation pipe is connected to the water inlet; the flow divider is provided with a flow dividing body and at least one flow dividing plate arranged in the flow dividing body, one side of the flow dividing body is concaved inwards to form a flow dividing space, the flow dividing body is correspondingly connected to the other ends of the condensation pipes, and an inlet connector is arranged on the flow dividing body and connected with an output pipeline of the liquid cooling head. Wherein the flow divider body is provided with an inlet for the inlet connector to be arranged, one end of the flow divider plate is located in the projection direction of the inlet and is transversely arranged, and the other end of the flow divider plate extends towards the condensation pipes far away from the inlet.

Description

Technical Field

[0001] This application relates to the field of heat dissipation technology, and further to a phase change cooling heat dissipation device. Background Technology

[0002] Currently, heat dissipation devices commonly use liquid cooling or air cooling to reduce equipment temperature. However, single-phase cooling has limited heat transfer efficiency at high power densities and is prone to causing excessive thermal resistance or localized overheating. To improve heat transfer efficiency, two-phase cooling technology has begun to be adopted, utilizing the liquid-vapor phase change of the working fluid to absorb and release heat. Through the latent heat of the liquid-vapor phase change, two-phase cooling devices can achieve higher heat transfer efficiency while maintaining uniform equipment temperature.

[0003] However, existing two-phase cooling devices still face challenges in fluid distribution, phase change control, and structural integration, which may affect heat dissipation efficiency and stability. Summary of the Invention

[0004] To address the aforementioned technical problems, the purpose of this application is to provide a phase change cooling and heat dissipation device, which uses a distributor to distribute and guide the vaporized working fluid more evenly, thereby facilitating condensation.

[0005] To achieve the above objectives, this application provides a phase change cooling heat dissipation device, comprising: a liquid cooling head, a liquid storage tank, a heat exchanger, and a distributor; the liquid cooling head is provided with an inlet pipe and an outlet pipe; the liquid storage tank has a housing and an impeller pump disposed within the housing, the housing is provided with an outlet connector and an inlet, and the outlet connector is connected to the inlet pipe of the liquid cooling head; the heat exchanger includes multiple condenser tubes and multiple fins, with the condenser tubes arranged at intervals to allow each fin to be connected between any two condenser tubes, and one end of each condenser tube is connected to the liquid storage tank. The inlet of the water; the distributor has a distributor body and at least one distributor plate disposed in the distributor body. The distributor body is recessed into a distributor space from one side and is correspondingly connected to the other end of each condenser tube. The distributor body is provided with an inlet connector and connected to the output pipeline of the liquid cooling head. The distributor body has an inlet for the inlet connector to be disposed. The distributor plate has a first end and a second end. The first end of the distributor plate is arranged laterally in the projection direction of the inlet, while the second end of the distributor plate extends toward each condenser tube away from the inlet.

[0006] In some embodiments, a collecting trough is provided on an outer surface of the housing, and the water inlet is located in the collecting trough.

[0007] In some embodiments, the collecting trough is connected to one end of each of the condenser tubes of the heat exchanger.

[0008] In some embodiments, the liquid storage tank is provided with a vacuum filling valve on the tank body.

[0009] In some embodiments, the heat exchanger is provided with a clamp on each of the two outermost fins for fixation.

[0010] In some embodiments, the heat exchanger has at least one fan on one side where each of the condenser tubes and each of the fins are arranged.

[0011] In some embodiments, there are multiple diverter plates.

[0012] In some embodiments, the first ends of the diverter plates are spaced apart from each other.

[0013] In some embodiments, the second ends of the diverter plates are also spaced apart from each other.

[0014] In some embodiments, the spacing between the second ends of the diverter plates is greater than the spacing between the first ends of the diverter plates.

[0015] Compared with the prior art, this application has at least the following beneficial effects: 1. By setting up a flow divider with a special flow guiding structure, the horizontal setting at the first end of the flow divider plate blocks and diffuses the two-phase fluid at the inlet, and with the extension guide at the second end, the uniform distribution of the working fluid among the condenser tubes is achieved, effectively solving the problems of local overheating and low heat transfer efficiency caused by uneven fluid distribution in the prior art.

[0016] 2. The impeller pump is built into the housing, avoiding the need for additional piping and installation space required for external pumps. This not only solves the layout problem in small areas but also improves space utilization. With the same external volume, the design in this application can provide a larger liquid storage volume to buffer temperature fluctuations and ensure more stable and reliable system operation. Attached Figure Description

[0017] The preferred embodiments will now be described in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of this application.

[0018] Figure 1 This is a three-dimensional assembly diagram of the present application; Figure 2 This is an exploded three-dimensional diagram of this application; Figure 3 This is a three-dimensional schematic diagram of the internal structure of the liquid storage tank in this application; Figure 4 This is an exploded perspective view of the liquid storage tank, heat exchanger, and flow divider of this application; Figure 5 This is a plan view of the liquid storage tank, heat exchanger and distributor of this application; Figure 6 for Figure 5 Sectional view of section 6-6; Figure 7 for Figure 5 Sectional view of section 7-7; Figure 8 for Figure 7 Enlarged detailed view of section A; Figure 9 for Figure 8 Sectional view of section 9-9.

[0019] Reference numerals: 1: Liquid cooling head; 10: Input pipe; 11: Output pipe; 2: Liquid storage tank; 20: Housing; 200: Water outlet connector; 201: Water inlet; 202: Collection tank; 203: Vacuum filling valve; 21: Impeller pump; 3: Heat exchanger; 30: Condenser tube; 31: Fin; 32: Clamping plate; 4: Flow divider; 40: Flow divider body; 40a: Inlet; D: Diameter; 400: Flow divider space; 401: Inlet connector; 41: First flow divider plate; 410: First end; 411: Second end; 42: Second flow divider plate; 420: First end; 421: Second end; 5: Fan. Detailed Implementation

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.

[0021] To keep the drawings concise, each drawing only schematically shows the parts relevant to the application; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" can mean not only "only one" but also "more than one."

[0022] 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.

[0023] 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 communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0025] 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.

[0026] In one embodiment, see Figure 1 and Figure 2 These are, respectively, a three-dimensional combined schematic diagram and a three-dimensional exploded schematic diagram of this application. This application provides a phase change cooling and heat dissipation device, including a liquid cooling head 1, a liquid storage tank 2, a heat exchanger 3, and a flow divider 4; wherein: The liquid cooling head 1 is used to be placed on a heat source (not shown) and exchange heat with it. The liquid cooling head 1 is connected to an input pipe 10 and an output pipe 11 to form a circulation loop by connecting the liquid storage tank 2, heat exchanger 3 and distributor 4 in series between the input pipe 10 and the output pipe 11. The input pipe 10 receives the liquid working fluid and causes it to vaporize when heated by the heat source. The vaporized working fluid is then transported to the distributor 4 through the output pipe 11.

[0027] Please refer to the following: Figure 3 and Figure 4As shown, the liquid storage tank 2 is connected to the input pipeline 10 and has a housing 20 and an impeller pump 21 disposed within the housing 20. The housing 20 is used to store liquid working fluid, and the housing 20 is provided with an outlet connector 200 and an inlet 201. The outlet connector 200 and the inlet 201 can be located on different faces of the housing 20 to facilitate configuration and assembly with other components. The outlet connector 200 is connected to the input pipeline 10 so that the impeller pump 21 can inject the liquid working fluid in the housing 20 into the outlet connector 200 and transport it to the liquid cooling head 1 through the input pipeline 10. The inlet 201 can be located in a collecting tank 202, which is disposed on an outer surface of the housing 20 and is used for corresponding connection of one end of the heat exchanger 3. In addition, the liquid storage tank 2 may be equipped with a vacuum filling valve 203 on its tank body 20.

[0028] Please refer to the following: Figures 4 to 6 As shown, the heat exchanger 3 includes a plurality of condenser tubes 30 and a plurality of fins 31. The condenser tubes 30 are arranged at intervals so that each fin 31 can be connected between any two condenser tubes 30. A clamp 32 can be provided on the outermost two fins 31 for fixation, so that one end of each condenser tube 30 of the heat exchanger 3 is connected to the inlet 201 of the liquid storage tank 2, and the other end of each condenser tube 30 of the heat exchanger 3 is connected to the distributor 4. Furthermore, one or more fans 5 can be added to the side of the heat exchanger 3 where the condenser tubes 30 and fins 31 are arranged, i.e., as shown... Figure 1 or Figure 2 As shown.

[0029] like Figure 4 and Figure 7 As shown, the distributor 4 has a distributor body 40 and at least one distributor plate disposed within the distributor body 40; in the embodiment described in this application, the distributor plate may be a first distributor plate 41 and a second distributor plate 42. The distributor body 40 is recessed inward from one side to form a distributor space 400, and the distributor space 400 is correspondingly connected to the other end of each of the condenser tubes 30 of the heat exchanger 3. The distributor body 40 is also provided with an inlet connector 401 and connected to the output pipe 11 of the liquid cooling head 1, so that the vaporized working fluid can be transported from the output pipe 11 of the liquid cooling head 1 to the distributor body 40 of the distributor 4, and can be guided by the first distributor plate 41 or the second distributor plate 42 to enter from the other end of each condenser tube 30 for cooling, so that it can return to a liquid state and then be injected into the storage tank 2 from one end of each condenser tube 30 for recycling.

[0030] Therefore, the phase change cooling and heat dissipation device of this application can be obtained by the above-described structure.

[0031] Accordingly, Figure 7 and Figure 8 As shown, this application mainly uses the first diversion plate 41 or the second diversion plate 42 in the diversion device 4 to divert the vaporized working fluid delivered to the diversion device 4 and guide it to the other end of each condenser tube 30 at a greater distance, thereby achieving a better uniform diversion effect so that the vaporized working fluid can be condensed in each condenser tube 30. Specifically, the diversion body 40 of the diversion device 4 has an inlet 40a and is provided with an inlet connector 401, so that the vaporized working fluid enters the diversion space 400 from the inlet 40a. The first diversion plate 41 has a first end 410 and a second end 411, and the second diversion plate 42 also has a first end 420 and a second end 421. The first end 410 of the first diversion plate 41 and the first end 420 of the second diversion plate 42 are arranged laterally in the projection direction of the inlet 40a (i.e., as shown in the diagram). Figure 9 As shown in the figure, the first end 410 of the first diverter plate 41 and the first end 420 of the second diverter plate 42 are spaced apart from each other, thereby allowing the diameter D of the inlet 40a to be laterally separated. The second end 411 of the first diverter plate 41 and the second end 421 of the second diverter plate 42 extend toward each of the condenser tubes 30 away from the inlet 40a. The second end 411 of the first diverter plate 41 and the second end 421 of the second diverter plate 42 are also spaced apart from each other, and the distance between them is greater than the distance between the first end 410 of the first diverter plate 41 and the first end 420 of the second diverter plate 42. This allows the vaporized working fluid to be diverted and guided by the first diverter plate 41 and the second diverter plate 42, so that it can enter the condenser tubes 30 away from the inlet 40a and be condensed, so as to achieve a better uniform diversion effect for the vaporized working fluid entering the condenser tubes 30.

[0032] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A phase change cooling and heat dissipation device, characterized in that, include: A liquid cooling head is provided with an input pipe and an output pipe; A liquid storage tank has a tank body and an impeller pump disposed in the tank body. The tank body is provided with a water outlet connector and a water inlet connector, and the water outlet connector is connected to the input pipeline of the liquid cooling head. A heat exchanger includes multiple condenser tubes and multiple fins, wherein the condenser tubes are arranged at intervals so that each fin can be connected between any two condenser tubes, and one end of each condenser tube is connected to the inlet of a liquid storage tank; and A flow divider has a flow divider body and at least one flow divider plate disposed in the flow divider body. The flow divider body is recessed into a flow divider space from one side and is correspondingly connected to the other end of each of the condenser tubes. The flow divider body is provided with an inlet connector and connected to the output pipeline of the liquid cooling head. The distributor body has an inlet for the inlet connector, and the distributor plate has a first end and a second end. The first end of the distributor plate is laterally positioned in the projection direction of the inlet, while the second end of the distributor plate extends toward each of the condenser tubes away from the inlet.

2. The phase change cooling and heat dissipation device according to claim 1, characterized in that, The outer surface of the box is provided with a collection trough, and the water inlet is located in the collection trough.

3. The phase change cooling and heat dissipation device according to claim 2, characterized in that, The collection tank is connected to one end of each of the condenser tubes of the heat exchanger.

4. The phase change cooling and heat dissipation device according to claim 2 or 3, characterized in that, The liquid storage tank is equipped with a vacuum filling valve.

5. The phase change cooling and heat dissipation device according to claim 1, characterized in that, The heat exchanger has a clamp on each of the two outermost fins for fixing.

6. The phase change cooling and heat dissipation device according to claim 1, characterized in that, The heat exchanger has at least one fan on one side of each of the condenser tubes and each of the fins.

7. The phase change cooling and heat dissipation device according to claim 1, characterized in that, The diverter plate is multiple.

8. The phase change cooling and heat dissipation device according to claim 7, characterized in that, The first ends of the diverter plates are spaced apart from each other.

9. The phase change cooling and heat dissipation device according to claim 8, characterized in that, The second ends of the diverter plates are also spaced apart from each other.

10. The phase change cooling and heat dissipation device according to claim 9, characterized in that, The distance between the second ends of the diverter plates is greater than the distance between the first ends of the diverter plates.

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