Liquid cooling plate for heat dissipation of electronic device

Abstract

The utility model provides a liquid cooling plate for heat dissipation of an electronic device. The liquid cooling plate comprises a liquid cooling plate body, a switching part, a liquid inlet part and a liquid outlet part, a liquid inlet flow channel, a first branch flow channel, a converging flow channel, a second branch flow channel and a liquid outlet flow channel are arranged in the liquid cooling plate body; the first branch flow channel is connected with one end of the liquid inlet flow channel and one end of the converging flow channel; the second branch flow channel is connected with the other end of the converging flow channel and the liquid outlet flow channel; the liquid inlet part and the liquid outlet part are installed on the liquid cooling plate body through the switching part, the liquid inlet part is connected with the liquid inlet flow channel, and the liquid outlet part is connected with the liquid outlet flow channel. According to the liquid cooling plate provided by the utility model, the flow resistance is effectively reduced through the multi-runner design; through the branch flow channels connected in parallel, the flowing path of cooling liquid is prolonged, the heat exchange area is increased, the heat exchange efficiency is remarkably improved, and the uniform and sufficient cooling effect is achieved; and the weight reduction area is arranged to carry out lightweight structural design, so that the weight of the liquid cooling plate is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of power electronics, in particular to a liquid cooling plate used for heat dissipation of electronic devices. Background Art

[0002] With the rapid development of electronic circuit integration, the integration of electronic devices continues to increase, the size is getting smaller and smaller, and the power consumption is also increasing accordingly. Electronic devices generate a lot of heat during operation, which seriously affects the reliability and service life of electronic devices. At present, liquid cooling plates are usually used to contact the heat-generating electronic devices to achieve heat dissipation.

[0003] Liquid cooling plates use the cooling liquid flowing inside to carry the heat generated by the operation of electronic devices to the outside by heat conduction and convection, thereby effectively controlling the temperature of electronic devices and ensuring their safe and stable operation. However, traditional liquid cooling plates usually have a curved flow channel inside, and there is a problem of high flow resistance when the coolant actually flows in the curved flow channel; in addition, liquid cooling plates also have problems such as heavy weight and insufficient and uneven cooling, which need to be improved urgently. Utility Model Content

[0004] The utility model aims to provide a liquid cooling plate for heat dissipation of electronic devices, which can reduce flow resistance and weight and achieve uniform and sufficient cooling effect.

[0005] The utility model provides a liquid cooling plate for heat dissipation of electronic devices, comprising: a liquid cooling plate body, a transfer part, a liquid inlet part and a liquid outlet part; a liquid inlet channel, a first branch channel, a confluent channel, a second branch channel and a liquid outlet channel are arranged inside the liquid cooling plate body; the first branch channel connects the liquid inlet channel and one end of the confluent channel; the second branch channel connects the other end of the confluent channel and the liquid outlet channel; the liquid inlet part and the liquid outlet part are both mounted on the liquid cooling plate body through the transfer part, the liquid inlet part is connected to the liquid inlet channel, and the liquid outlet part is connected to the liquid outlet channel.

[0006] Preferably, the first branch flow channel comprises: a first curved flow channel and a second curved flow channel; the first curved flow channel and the second curved flow channel are distributed in parallel on both sides of the liquid inlet flow channel.

[0007] Preferably, the number of the first curved flow channels and the second curved flow channels are the same, and they are distributed in pairs along the cross-sectional direction of the liquid inlet flow channel.

[0008] Preferably, the converging channel includes: a first channel, a second channel and a third channel; the first channel is connected to the first curved channel, the second channel is connected to the second curved channel, and the first channel and the second channel are both connected to the third channel.

[0009] Preferably, the second branch flow channel includes: a plurality of parallel straight flow channels; one end of each straight flow channel is connected to the third flow channel, and the other end is connected to the liquid outlet flow channel.

[0010] Preferably, the adapter part is provided with two fixing holes; the liquid inlet part penetrates through one fixing hole to be connected to the liquid inlet flow channel, and the liquid outlet part penetrates through the other fixing hole to be connected to the liquid outlet flow channel.

[0011] Preferably, the adapter part is further provided with a mounting hole; the fixing holes and the mounting hole are through holes arranged side by side in the same direction on the adapter block, and the mounting hole is arranged between the two fixing holes.

[0012] Preferably, the liquid inlet part includes: a liquid inlet pipe and a liquid inlet interface; one end of the liquid inlet pipe is hermetically connected to the liquid inlet flow channel, and the other end is hermetically connected to the liquid inlet interface; the liquid outlet part includes: a liquid outlet pipe and a liquid outlet interface; one end of the liquid outlet pipe is hermetically connected to the liquid outlet flow channel, and the other end is hermetically connected to the liquid outlet interface.

[0013] Preferably, the liquid inlet flow channel, the confluence flow channel and the liquid outlet flow channel have the same flow rate.

[0014] Preferably, a weight reduction area is provided in the area outside the flow channels of the liquid cooling plate body.

[0015] The liquid cooling plate for cooling electronic devices provided by the present utility model effectively reduces the flow resistance through a multi-channel design; the parallel branch flow channels extend the flow path of the cooling liquid and increase the heat exchange area, significantly improving the heat exchange efficiency and achieving a uniform and sufficient cooling effect; and a lightweight structural design is also achieved by setting a weight reduction area, effectively reducing the weight of the liquid cooling plate. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic diagram of the liquid cooling plate for cooling electronic devices according to an embodiment of the present utility model.

[0018] Figure 2 It is a cross-sectional view of the liquid cooling plate body.

[0019] Reference numerals: liquid cooling plate body 1, inlet flow channel 10, first branch flow channel 11, confluence flow channel 12, second branch flow channel 13, outlet flow channel 14, first curved flow channel 15, second curved flow channel 16, first flow channel 17, second flow channel 18, third flow channel 19, adapter part 2, mounting hole 20, inlet part 3, inlet pipe 30, inlet interface 31, outlet part 4, outlet pipe 40, outlet interface 41, weight reduction area 5. Detailed implementation manners

[0020] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation manners of the present utility model with reference to the accompanying drawings. It should be understood that many specific details are set forth in the following description in order to fully understand the present utility model, but the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0021] As Figure 1 shown, this embodiment provides a liquid cooling plate for cooling an electronic device, including: a liquid cooling plate body 1, an adapter part 2, an inlet part 3 and an outlet part 4.

[0022] Both the inlet part 3 and the outlet part 4 are installed on the liquid cooling plate body 1 through the adapter part 2. Specifically, the inlet part 3, the outlet part 4 and the adapter part 2 are all located on the same side of the liquid cooling plate body 1.

[0023] As an example, the material of the liquid cooling plate body 1 can be aluminum alloy.

[0024] Preferably, the adapter part 2 is provided with two fixing holes and a mounting hole 20.

[0025] The fixing holes and the mounting hole 20 are through holes arranged side by side in the same direction on the adapter block, and the mounting hole 20 is arranged between the two fixing holes.

[0026] Here, the fixing holes are used to fix the inlet part 3 and the outlet part 4, and the mounting hole 20 is used to mount the adapter part 2 on the liquid cooling plate body 1. As an example, the number of the mounting holes 20 is two, and the adapter part 2 is mounted on the liquid cooling plate body 1 by means of bolt connection.

[0027] As Figure 2 shown, the interior of the liquid cooling plate body 1 is provided with an inlet flow channel 10, a first branch flow channel 11, a confluence flow channel 12, a second branch flow channel 13 and an outlet flow channel 14.

[0028] One end of the first branch flow channel 11 is connected to the inlet flow channel 10 and the confluence flow channel 12; the other end of the second branch flow channel 13 is connected to the confluence flow channel 12 and the outlet flow channel 14.

[0029] The liquid inlet part 3 is connected to the liquid inlet flow channel 10, and the liquid outlet part 4 is connected to the liquid outlet flow channel 14. Specifically, the liquid inlet part 3 penetrates through a fixing hole to be connected to the liquid inlet flow channel 10, and the liquid outlet part 4 penetrates through another fixing hole to be connected to the liquid outlet flow channel 14.

[0030] Preferably, the flow rates of the liquid inlet flow channel 10, the converging flow channel 12, and the liquid outlet flow channel 14 are the same.

[0031] The first branch flow channel 11 includes: a first bent flow channel 15 and a second bent flow channel 16.

[0032] The first bent flow channel 15 and the second bent flow channel 16 are distributed in parallel on both sides of the liquid inlet flow channel 10.

[0033] It should be understood that the bending paths of the first bent flow channel 15 and the second bent flow channel 16 can be set according to actual needs. In this embodiment, the first bent flow channel 15 and the second bent flow channel 16 can be in an S-shaped bending shape. The first bent flow channel 15 has two flow channel inflection points, and the second bent flow channel 16 has four flow channel inflection points.

[0034] Preferably, the number of the first bent flow channel 15 and the second bent flow channel 16 is the same, and they are distributed in pairs along the cross-sectional direction of the liquid inlet flow channel 10.

[0035] It can be understood that the number of the first bent flow channel 15 and the second bent flow channel 16 can be set according to actual needs. A plurality of first bent flow channels 15 are arranged at intervals on one side of the liquid inlet flow channel 10, and a plurality of second bent flow channels 16 are arranged at intervals on the other side of the liquid inlet flow channel 10.

[0036] As an example, the number of both the first bent flow channel 15 and the second bent flow channel 16 is eight. Preferably, the inlet of each first bent flow channel 15 is vertically connected to one side of the liquid inlet flow channel 10, and the inlet of each second bent flow channel 16 is vertically connected to the other side of the liquid inlet flow channel 10.

[0037] Preferably, the converging flow channel 12 includes: a first flow channel 17, a second flow channel 18, and a third flow channel 19.

[0038] The first flow channel 17 is connected to the first bent flow channel 15, the second flow channel 18 is connected to the second bent flow channel 16, and both the first flow channel 17 and the second flow channel 18 are connected to the third flow channel 19.

[0039] Preferably, the second branch flow channel 13 includes: a number of parallel straight flow channels.

[0040] One end of the straight flow channel is connected to the third flow channel 19, and the other end is connected to the liquid outlet flow channel 14.

[0041] In this embodiment, the number of straight channels is five, and the five straight channels are parallel to each other.

[0042] The multi-channel design within the liquid cooling plate body 1 can effectively reduce the flow resistance of the coolant; the multi-channel parallel structure formed by the first branch channel 11 and the second branch channel 13 also extends the flow path of the coolant and increases the heat exchange area, effectively taking away the heat at different positions, thereby enabling the liquid cooling plate to efficiently absorb the heat generated by the operation of the electronic device and preventing high-temperature overload, which not only significantly improves the heat exchange efficiency but also achieves a uniform and sufficient cooling effect.

[0043] Preferably, the liquid inlet part 3 includes: a liquid inlet pipe 30 and a liquid inlet interface 31.

[0044] One end of the liquid inlet pipe 30 is sealingly connected to the liquid inlet channel 10, and the other end is sealingly connected to the liquid inlet interface 31.

[0045] The liquid outlet part 4 includes: a liquid outlet pipe 40 and a liquid outlet interface 41.

[0046] One end of the liquid outlet pipe 40 is sealingly connected to the liquid outlet channel 14, and the other end is sealingly connected to the liquid outlet interface 41.

[0047] The liquid inlet part 3 is used for the coolant to flow into the internal channels of the liquid cooling plate body 1, and the liquid outlet part 4 is used for the coolant to flow out of the internal channels of the liquid cooling plate body 1.

[0048] It should be understood that the connections between the channels are all sealed and communicated to prevent the coolant from leaking inside the liquid cooling plate.

[0049] Preferably, a weight reduction area 5 is provided in the area outside the channels of the liquid cooling plate body 1, effectively reducing the overall weight of the liquid cooling plate.

[0050] Here, the area outside the channels of the liquid cooling plate body 1 can be: a safety area where no channels are provided in the thickness direction of the liquid cooling plate body 1.

[0051] The thickness of the weight reduction area 5 is less than the thickness of the liquid cooling plate body 1.

[0052] Furthermore, multiple weight reduction areas 5 can be provided in each safety area according to actual needs. For example, multiple weight reduction areas 5 can be provided at the edge of the liquid cooling plate body 1, or multiple weight reduction areas 5 can be provided on the surface of the liquid cooling plate body 1. In addition, the weight reduction area 5 can be set into different shapes according to the actual situation of the safety area, such as rectangular, fan-shaped, etc.

[0053] The liquid cooling plate for heat dissipation of electronic devices provided in this embodiment effectively reduces the flow resistance through a multi-channel design; the parallel branch channels extend the flow path of the coolant and increase the heat exchange area, significantly improving the heat exchange efficiency and achieving a uniform and sufficient cooling effect; and a weight reduction area is set for lightweight structural design to effectively reduce the weight of the liquid cooling plate.

[0054] The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the patent scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

Claims

1. A liquid cooling plate for heat dissipation of electronic devices, characterized in that: include: Liquid cooling plate body, adapter, liquid inlet and liquid outlet; The liquid cooling plate body is provided with a liquid inlet channel, a first branch channel, a confluent channel, a second branch channel and a liquid outlet channel inside; the first branch channel connects the liquid inlet channel and one end of the confluent channel; the second branch channel connects the other end of the confluent channel and the liquid outlet channel; The liquid inlet and the liquid outlet are both mounted on the liquid cooling plate body through the adapter, the liquid inlet is connected to the liquid inlet channel, and the liquid outlet is connected to the liquid outlet channel.

2. The liquid cooling plate according to claim 1, characterized in that: The first branch flow channel includes: a first curved flow channel and a second curved flow channel; The first curved flow channel and the second curved flow channel are distributed in parallel on both sides of the liquid inlet flow channel.

3. The liquid cooling plate according to claim 2, characterized in that: The number of the first curved flow channels and the second curved flow channels is the same, and they are distributed in pairs along the cross-sectional direction of the liquid inlet flow channel.

4. The liquid cooling plate according to claim 2, characterized in that: The converging flow channel comprises: a first flow channel, a second flow channel and a third flow channel; The first flow channel is connected to the first curved flow channel, the second flow channel is connected to the second curved flow channel, and the first flow channel and the second flow channel are both connected to the third flow channel.

5. The liquid cooling plate according to claim 4, characterized in that: The second branch flow channel includes: a plurality of parallel direct flow channels; One end of the direct flow channel is connected to the third flow channel, and the other end is connected to the liquid outlet flow channel.

6. The liquid cooling plate according to claim 1, characterized in that: The adapter portion is provided with two fixing holes; The liquid inlet portion passes through a fixed hole to connect to the liquid inlet channel, and the liquid outlet portion passes through another fixed hole to connect to the liquid outlet channel.

7. The liquid cooling plate according to claim 6, characterized in that: The adapter is also provided with a mounting hole; The fixing hole and the mounting hole are through holes distributed side by side on the adapter portion along the same direction, and the mounting hole is arranged between the two fixing holes.

8. The liquid cooling plate according to claim 1, characterized in that: The liquid inlet portion comprises: a liquid inlet pipe and a liquid inlet interface; one end of the liquid inlet pipe is sealed and connected to the liquid inlet channel, and the other end is sealed and connected to the liquid inlet interface; The liquid outlet portion comprises: a liquid outlet pipe and a liquid outlet interface; one end of the liquid outlet pipe is sealed and connected to the liquid outlet channel, and the other end is sealed and connected to the liquid outlet interface.

9. The liquid cooling plate according to any one of claims 1 to 8, characterized in that: The flow rates of the liquid inlet flow channel, the confluent flow channel and the liquid outlet flow channel are the same.

10. The liquid cooling plate according to any one of claims 1 to 8, characterized in that: A weight reduction area is provided in the area outside the flow channel of the liquid cooling plate body.

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