Liquid cooling plate applied to distributed heat source module
By designing a parallel cooling zone and a multi-parallel branch flow channel structure for the liquid cooling plate, the problem of local overheating in the distributed heat source module was solved, achieving temperature uniformity and efficient heat dissipation.
Patent Information
- Application Number
- CN202423210454.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In existing technologies, the heat dissipation of each power module in a triangularly arranged distributed heat source module is inconsistent, leading to localized overheating.
Design a liquid cooling plate with parallel front and rear cooling zones forming a triangular structure. The coolant is evenly distributed through the inlet, outlet, and multiple parallel branch channels to ensure the temperature consistency of each power module.
This effectively avoids localized overheating of the distributed heat source module, achieves temperature uniformity for modules with different power levels, and improves heat dissipation efficiency and product reliability.
Smart Images
Figure CN223829645U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of heat dissipation, more particularly to a liquid cooling plate applied to a distributed heat source module. BACKGROUND
[0002] The main reasons for the failure of electronic components include temperature, humidity, vibration and dust, etc., among which the proportion of device failure caused by temperature factor reaches 55%, and effectively reducing the working temperature of high power density electronic components is an effective method to prolong the life cycle and improve product reliability. The heat source module has transient start-stop and load power change during work, and the power density of the heat source module gradually increases.
[0003] The current mainstream heat dissipation methods mainly include air cooling, liquid cooling and phase change cooling, among which liquid cooling includes bottom plate liquid cooling and immersion liquid cooling, etc. At present, bottom plate liquid cooling gradually replaces air cooling as the most popular electronic component cooling method due to its high heat exchange efficiency, no pollution to the module, low noise, simple equipment and compact structure. The heat dissipation amount of each power module of a distributed heat source module arranged in a triangular shape is inconsistent, which is prone to local overheating.
[0004] Therefore, how to solve the problem of local overheating of the distributed heat source module arranged in a triangular shape is a problem that needs to be solved by the technical personnel in the field. UTILITY MODEL CONTENTS
[0005] Therefore, the utility model aims to provide a liquid cooling plate applied to a distributed heat source module, which can realize the consistency of the temperature of different power modules to avoid local overheating of the distributed heat source module arranged in a triangular shape.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0007] A liquid cooling plate applied to a distributed heat source module, comprising: a liquid cooling plate body, a front cooling area and a rear cooling area are arranged in parallel in the liquid cooling plate body, the front cooling area is arranged on the front side of the liquid cooling plate body, the rear cooling area is arranged on the rear side of the liquid cooling plate body, the front cooling area comprises a first cooling area and a second cooling area arranged in parallel, the first cooling area, the second cooling area and the rear cooling area form a triangular structure, the front side of the liquid cooling plate body is provided with a water inlet and a water outlet, the first cooling area, the second cooling area and the rear cooling area are all communicated with the water inlet and the water outlet.
[0008] Preferably, the water inlet is communicated with a main flow channel, the main flow channel is provided with a front branch flow channel communicated with the first cooling area and the second cooling area, the rear end of the main flow channel is communicated with two rear branch flow channels arranged in parallel, and the rear branch flow channels are communicated with the rear cooling area.
[0009] Preferably, the first cooling area and the second cooling area are both double-parallel branch flow channels, and the rear cooling area is a four-parallel branch flow channel.
[0010] Preferably, the double-parallel branch flow channel and the four-parallel branch flow channel are both snake-type flow channels, and the corners of the snake-type flow channels are right angles.
[0011] Preferably, the water outlet is arranged at the middle of the liquid cooling plate body, and the water outlet is communicated with the first cooling area, the second cooling area and the rear cooling area through a drainage flow channel, the drainage flow channel comprises a first drainage branch flow channel and a second drainage branch flow channel which are connected in parallel, the first drainage branch flow channel is communicated with the water outlet of the first cooling area, and the second drainage branch flow channel is communicated with the water outlets of the second cooling area and the rear cooling area.
[0012] Preferably, the first drainage branch flow channel is arranged outside the water inlet flow channel of the first cooling area, and the second drainage branch flow channel is arranged outside the water inlet flow channel of the second cooling area.
[0013] Preferably, the front side of the liquid cooling plate body is further provided with an exhaust port, and the exhaust port is communicated with the second drainage branch flow channel through an exhaust pipeline.
[0014] Preferably, the liquid cooling plate body comprises a groove base plate and a flat base plate welded to the groove base plate, the flat base plate is provided with a threaded hole, a nut is embedded in the threaded hole, and the nut is matched with a screw to fix the distributed heat source module on the flat base plate.
[0015] Preferably, the groove base plate is provided with the first cooling area, the second cooling area, the rear cooling area, the water inlet, the water outlet and the exhaust port.
[0016] Preferably, the liquid cooling plate body is rectangular and is a metal plate.
[0017] The liquid cooling plate applied to the distributed heat source module comprises a liquid cooling plate body, the liquid cooling plate body is internally provided with parallel front and rear cooling areas, the front cooling area is arranged on the front side of the liquid cooling plate body, the rear cooling area is arranged on the rear side of the liquid cooling plate body, the front cooling area comprises parallel first and second cooling areas, the first cooling area, the second cooling area and the rear cooling area form a triangular structure, thereby corresponding to the arrangement shape of the distributed heat source module arranged in a triangular shape, the power modules of the distributed heat source module are cooled, the front side of the liquid cooling plate body is provided with a water inlet and a water outlet, the first cooling area, the second cooling area and the rear cooling area are all communicated with the water inlet and the water outlet, cooling liquid is introduced into the first cooling area, the second cooling area and the rear cooling area through the water inlet, thereby cooling the corresponding power modules in the first cooling area, the second cooling area and the rear cooling area, and the cooling liquid flowing through the first cooling area, the second cooling area and the rear cooling area exchanges heat with the power modules and is discharged from the water outlet.
[0018] The liquid cooling plate applied to the distributed heat source module is provided with the cooling structure in the shape of a triangle to effectively cool the distributed heat source module arranged in the shape of a triangle, and the consistency of the temperature of different power modules of the distributed heat source module is realized to avoid local overheating of the distributed heat source module. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by the provided drawings without creative labor for those skilled in the art.
[0020] Figure 1 A sectional view of the liquid cooling plate applied to the distributed heat source module provided by the present application;
[0021] Figure 2 A sectional view of the liquid cooling plate applied to the distributed heat source module provided by the present application;
[0022] Figure 3 A sectional view of the liquid cooling plate applied to the distributed heat source module provided by the present application;
[0023] Figure 4 A structural schematic view of the liquid cooling plate applied to the distributed heat source module provided by the present application.
[0024] Reference signs:
[0025] 01-heat source module;
[0026] 1-liquid cooling plate body, 11-groove base plate, 111-water inlet, 112-water outlet, 113-exhaust port, 12-flat base plate;
[0027] 2-front cooling area, 21-first cooling area, 22-second cooling area;
[0028] 3-back cooling area;
[0029] 4-main flow channel, 41-front branch flow channel, 42-back branch flow channel;
[0030] 5-drainage flow channel, 51-first drainage branch flow channel, 52-second drainage branch flow channel;
[0031] 6-exhaust pipe. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to 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 the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.
[0033] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0034] It should be noted that the following "front, back, left, right" and other directional words are defined based on the drawings of the specification.
[0035] The core of the present application is to provide a liquid cooling plate applied to a distributed heat source module, which can realize the consistency of the temperatures of different power modules, so as to avoid local overheating of the distributed heat source module 01 arranged in a triangular shape.
[0036] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a liquid cooling plate applied to a distributed heat source module comprises a liquid cooling plate body 1.
[0037] Specifically, the liquid cooling plate body 1 is provided with a front cooling area 2 and a rear cooling area 3 in parallel, the front cooling area 2 is arranged on the front side of the liquid cooling plate body 1, the rear cooling area 3 is arranged on the rear side of the liquid cooling plate body 1, the front cooling area 2 comprises a first cooling area 21 and a second cooling area 22 arranged in parallel, the first cooling area 21, the second cooling area 22 and the rear cooling area 3 form a triangular structure, so as to correspond to the arrangement shape of the distributed heat source module 01 arranged in a triangular shape, and the temperature of each power module of the distributed heat source module 01 is lowered, the front side of the liquid cooling plate body 1 is provided with a water inlet 111 and a water outlet 112, the first cooling area 21, the second cooling area 22 and the rear cooling area 3 are all communicated with the water inlet 111 and the water outlet 112, the cooling liquid is introduced into the first cooling area 21, the second cooling area 22 and the rear cooling area 3 through the water inlet 111, so as to lower the temperature of the corresponding power module in the first cooling area 21, the second cooling area 22 and the rear cooling area 3, and the cooling liquid flowing through the first cooling area 21, the second cooling area 22 and the rear cooling area 3 is discharged from the water outlet 112 after heat exchange with the power module.
[0038] The liquid cooling plate applied to the distributed heat source module is arranged in the above manner, and is provided with a cooling structure in a triangular shape to achieve effective cooling of the distributed heat source module 01 arranged in a triangular shape and achieve consistency of the temperatures of different power modules of the distributed heat source module 01 to avoid local overheating of the distributed heat source module 01.
[0039] In the above embodiment, the water inlet 111 is communicated with the main flow channel 4, the main flow channel 4 is provided with a front branch flow channel 41 communicated with the first cooling area 21 and the second cooling area 22, and the rear end of the main flow channel 4 is communicated with two parallelly arranged rear branch flow channels 42 communicated with the rear cooling area 3.
[0040] It should be noted that the cooling liquid passing through the water inlet 111 flows to the first cooling area 21 and the second cooling area 22 through the main flow channel 4 and the front branch flow channel 41, thereby achieving cooling of the power modules arranged in the first cooling area 21 and the second cooling area 22, and at the same time, the cooling liquid passing through the water inlet 111 flows to the rear cooling area 3 through the main flow channel 4 and the rear branch flow channel 42, thereby achieving cooling of the power modules arranged in the rear cooling area 3.
[0041] In the above embodiment, the front cooling area 2 is arranged in a left-right partition form, the second cooling area 22 is arranged at the left front, and the first cooling area 21 is arranged at the right front, and the front branch flow channel 41 is branched into double branch flow channels respectively communicated with the inlets of the first cooling area 21 and the second cooling area 22.
[0042] In the above embodiment, the first cooling area 21 and the second cooling area 22 are both double-parallel branch flow channels, and the rear cooling area 3 is a four-parallel branch flow channel.
[0043] It can be understood that the sub-flow channels of the first cooling area 21 and the second cooling area 22 are double-parallel branch flow channels, that is, two sub-flow channels, the first cooling area 21 and the second cooling area 22 are used for cooling four power modules, and finally the flow is converged in the middle and led out to the water outlet 112. The rear cooling area 3 adopts a four-parallel branch flow channel and is used for cooling eight power modules.
[0044] In the above embodiment, the shape of the flow channel is a regular prism, the width of a single branch flow channel of the double-parallel branch flow channel is 6 mm, the depth is 6 mm, the spacing between the two branch flow channels is 4 mm, the width of a single branch flow channel of the four-parallel branch flow channel is 5 mm, the depth is 10 mm, and the spacing between the two branch flow channels is 3 mm. By changing the depth, width, number of flow channels and spacing of the flow channels, the consistency of the temperatures of different power modules is achieved.
[0045] In the above embodiment, the double-parallel branch flow channel and the four-parallel branch flow channel are both snake-type flow channels, and the corners of the snake-type flow channels are right angles.
[0046] It can be understood that the multi-phase power modules are arranged in parallel, and for such an arrangement, the flow channels are divided into front and rear sections, the front cooling area 2 is a double-flow three-fold design for cooling four power modules, and is divided into left and right sections to facilitate the convergence of the current and the leading out of the middle, and the rear cooling area 3 is a four-flow three-fold design for cooling eight power modules.
[0047] Further, the water outlet 112 is arranged at the middle of the liquid cooling plate body 1, the water outlet 112 is communicated with the first cooling area 21, the second cooling area 22 and the rear cooling area 3 through the drainage flow channel 5, and the drainage flow channel 5 includes the first drainage branch flow channel 51 and the second drainage branch flow channel 52 which are connected in parallel, the first drainage branch flow channel 51 is communicated with the water outlet 112 of the first cooling area 21, and the second drainage branch flow channel 52 is communicated with the water outlet 112 of the second cooling area 22 and the rear cooling area 3.
[0048] It should be noted that the coolant collected through the first cooling area 21, the second cooling area 22 and the rear cooling area 3 flows out from the water outlet 112 through the first drainage branch flow channel 51 and the second drainage branch flow channel 52, that is, the coolant through the first cooling area 21 flows out from the water outlet 112 through the first drainage branch flow channel 51, and the coolant through the second cooling area 22 and the rear cooling area 3 flows out from the water outlet 112 through the second drainage branch flow channel 52.
[0049] In the above case, the first drainage branch flow channel 51 is arranged outside the water inlet flow channel of the first cooling area 21, and the second drainage branch flow channel 52 is arranged outside the water inlet flow channel of the second cooling area 22.
[0050] It should be noted that the first drainage branch flow channel 51 is arranged outside the water inlet flow channel of the first cooling area 21, so that the cooling water with lower temperature entering the first cooling area 21 can form an adjacent or close layout with the water with higher temperature flowing from the first cooling area 21 to the first drainage branch flow channel 51, thereby achieving better cooling effect; similarly, the second drainage branch flow channel 52 is arranged outside the water inlet flow channel of the second cooling area 22, so that the cooling water with lower temperature entering the second cooling area 22 can form an adjacent or close layout with the water with higher temperature flowing from the second cooling area 22 and the rear cooling area 3 to the second drainage branch flow channel 52, thereby achieving better cooling effect.
[0051] In the above embodiment, the front side of the liquid cooling plate body 1 is also provided with an exhaust port 113, and the exhaust port 113 is communicated with the second drainage branch flow channel 52 through an exhaust pipeline 6.
[0052] It can be understood that the flow channel as a whole adopts a straight-in straight-out structure, and the exhaust port 113 is connected at one end of the tail of the flow channel through the exhaust pipeline 6 for liquid injection and exhaust.
[0053] On the basis of the above-mentioned embodiments, the liquid cooling plate body 1 comprises a groove base plate 11 and a flat base plate 12 welded to the groove base plate 11, the flat base plate 12 is provided with threaded holes, the threaded holes are embedded with nuts, and the nuts are matched with screws to fix the distributed heat source module 01 on the flat base plate 12.
[0054] It should be noted that, from the overall structure of the liquid cooling plate body 1, the bottom plate is the groove base plate 11, the top plate is the flat base plate 12, the flat base plate 12 is connected and sealed with the groove base plate 11 through welding, the top surface of the flat base plate 12 is the mounting surface of the power module, the flat base plate 12 is provided with threaded holes embedded with stainless steel wire nuts, and the power module is fixed on the flat base plate 12 through screws.
[0055] In the above case, the groove base plate 11 is provided with a first cooling area 21, a second cooling area 22, a rear cooling area 3, a water inlet 111, a water outlet 112 and an exhaust port 113.
[0056] It can be understood that the groove base plate 11 and the flat base plate 12 are both plates with a certain thickness, and the groove base plate 11 is thicker so as to facilitate the groove base plate 11 to be provided with various flow channels, that is, the first cooling area 21, the second cooling area 22, the rear cooling area 3, the water inlet 111, the water outlet 112 and the exhaust port 113 are all provided on the groove base plate 11, and the flat base plate 12 only serves as a mounting surface for mounting the power module.
[0057] In the above-mentioned embodiments, the liquid cooling plate body 1 is rectangular and is a metal plate.
[0058] It should be noted that the liquid cooling plate body 1 can be an aluminum alloy plate or a copper base plate, etc., when the liquid cooling plate body 1 is made of aluminum alloy material, the strength of the liquid cooling plate body 1 can be ensured, and the liquid cooling plate body 1 has corrosion resistance, light weight and good heat conduction performance.
[0059] In summary, the liquid cooling plate applied to the distributed heat source module provided by the utility model is aimed at distributed multiple heat sources, and the layout of branch flow channels is adopted to prevent local overheating.
[0060] It should be noted that in the present specification, relational terms such as first and second are used only to distinguish one entity from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities.
[0061] The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other.
[0062] The above has carried out the detailed introduction to the liquid cooling plate applied to the distributed heat source module provided by the utility model. The principle and implementation mode of the utility model are described by applying specific examples in this paper, and the above embodiment is only used for helping to understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled person in the art, without departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claim.
Claims
1. A liquid-cooled plate for use in a distributed heat source module, characterized in that, include: The liquid cooling plate body (1) has a front cooling zone (2) and a rear cooling zone (3) connected in parallel. The front cooling zone (2) is located on the front side of the liquid cooling plate body (1), and the rear cooling zone (3) is located on the rear side of the liquid cooling plate body (1). The front cooling zone (2) includes a first cooling zone (21) and a second cooling zone (22) connected in parallel. The first cooling zone (21), the second cooling zone (22) and the rear cooling zone (3) form a triangular structure. The front side of the liquid cooling plate body (1) has an inlet (111) and an outlet (112). The first cooling zone (21), the second cooling zone (22) and the rear cooling zone (3) are all connected to the inlet (111) and the outlet (112).
2. The liquid cooling plate applied to a distributed heat source module according to claim 1, characterized in that, The inlet (111) is connected to the main channel (4), and the main channel (4) is provided with a front branch channel (41) that is connected to both the first cooling zone (21) and the second cooling zone (22). The rear end of the main channel (4) is connected to two parallel rear branch channels (42), and the rear branch channels (42) are connected to the rear cooling zone (3).
3. The liquid cooling plate applied to a distributed heat source module according to claim 2, characterized in that, The first cooling zone (21) and the second cooling zone (22) are both dual parallel branch channels, and the rear cooling zone (3) is a quadruple parallel branch channel.
4. The liquid cooling plate applied to a distributed heat source module according to claim 3, characterized in that, Both the dual parallel branch flow channels and the quad parallel branch flow channels are serpentine flow channels, and the corners of the serpentine flow channels are right angles.
5. The liquid cooling plate applied to a distributed heat source module according to claim 1, characterized in that, The outlet (112) is located in the middle of the liquid cooling plate body (1). The outlet (112) is connected to the first cooling zone (21), the second cooling zone (22), and the rear cooling zone (3) through the drainage channel (5). The drainage channel (5) includes a first drainage branch channel (51) and a second drainage branch channel (52) connected in parallel. The first drainage branch channel (51) is connected to the outlet of the first cooling zone (21), and the second drainage branch channel (52) is connected to the outlets of the second cooling zone (22) and the rear cooling zone (3).
6. The liquid cooling plate applied to a distributed heat source module according to claim 5, characterized in that, The first drainage branch channel (51) is located outside the water inlet channel of the first cooling zone (21), and the second drainage branch channel (52) is located outside the water inlet channel of the second cooling zone (22).
7. The liquid cooling plate applied to a distributed heat source module according to claim 6, characterized in that, The front side of the liquid cooling plate body (1) is also provided with an exhaust port (113), which is connected to the second drainage branch channel (52) through an exhaust pipe (6).
8. The liquid cooling plate applied to a distributed heat source module according to claim 7, characterized in that, The liquid cooling plate body (1) includes a groove base plate (11) and a flat base plate (12) welded to the groove base plate (11). The flat base plate (12) is provided with a threaded hole, and a nut is embedded in the threaded hole. The nut cooperates with a screw to fix the heat source module (01) to the flat base plate (12).
9. The liquid cooling plate for a distributed heat source module according to claim 8, characterized in that, The tank substrate (11) is provided with the first cooling zone (21), the second cooling zone (22), the rear cooling zone (3), the water inlet (111), the water outlet (112) and the exhaust port (113).
10. The liquid-cooled plate for a distributed heat source module according to any one of claims 1-9, characterized in that, The liquid cooling plate body (1) is rectangular and is a metal plate.