Liquid cooling plate structure based on bidirectional parallel flow channels

Abstract

The utility model provides a liquid cooling plate structure based on bidirectional parallel flow channels, which comprises a liquid cooling plate body, a water inlet flow channel, a first liquid cooling flow channel, a second liquid cooling flow channel, a third liquid cooling flow channel, a fourth liquid cooling flow channel, a water outlet flow channel, a water inlet pipe and a water outlet pipe, and the first liquid cooling flow channel, the second liquid cooling flow channel, the third liquid cooling flow channel and the fourth liquid cooling flow channel are all communicated with the water inlet flow channel. The first liquid cooling flow channel, the second liquid cooling flow channel, the third liquid cooling flow channel and the fourth liquid cooling flow channel all play a role in heat dissipation, all the liquid cooling flow channels are communicated with the water inlet flow channel, cooling water can evenly flow into all the liquid cooling flow channels, all the liquid cooling flow channels are communicated with one another, and the cooling efficiency is improved. And heat transfer can be carried out between the liquid cooling flow channels, so that the temperature of cooling water in the liquid cooling flow channels is uniform, and the heat dissipation effect of the liquid cooling plate on the battery is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling plates, in particular to a liquid cooling plate structure based on bidirectional parallel flow channels. Background Art

[0002] In the battery field, liquid cooling plates are a heat dissipation technology used in battery systems. Liquid (usually coolant) is passed through pipes in the plate to absorb and dissipate the heat generated by the battery. This heat dissipation method can effectively reduce the battery temperature and improve the performance and life of the battery system.

[0003] Liquid cold plates usually transfer heat from the battery to the coolant by directly contacting the battery cell or battery pack. Liquid cold plates currently on the market usually adopt single-direction or series flow channel designs, which may have problems of uneven heat dissipation and low efficiency.

[0004] The invention with announcement number CN114628819B proposes a battery module liquid cooling plate, including a water inlet and a water outlet, and also includes an even number of liquid cooling plates, each group of liquid cooling plates including an upper liquid cooling plate and a lower liquid cooling plate. In this technical solution, for the multiple liquid cooling plates with upper and lower layers, it is not necessary to connect all the liquid cooling plates in parallel. It is only necessary to connect an upper liquid cooling plate and a lower liquid cooling plate in parallel, and then cross-connect the remaining upper liquid cooling plates and lower liquid cooling plates in series. Then the above-mentioned multiple groups of liquid cooling plates are still connected in series, which leads to problems of uneven heat dissipation and low efficiency. Therefore, this application proposes a liquid cooling plate structure based on a bidirectional parallel flow channel to solve the above problems. Utility Model Content

[0005] In view of this, the utility model proposes a liquid cooling plate structure based on bidirectional parallel flow channels, wherein the first liquid cooling flow channel, the second liquid cooling flow channel, the third liquid cooling flow channel and the fourth liquid cooling flow channel all play a role in heat dissipation, and by arranging each liquid cooling flow channel to be connected with the water inlet flow channel, the cooling water can flow evenly into the interior of each liquid cooling flow channel, and by arranging each liquid cooling flow channel to be connected with each other, heat can also be transferred between each liquid cooling flow channel, so that the cooling water temperature inside each liquid cooling flow channel is uniform, thereby increasing the heat dissipation effect of the liquid cooling plate of the present application on the battery.

[0006] The technical solution of the utility model is implemented as follows: The utility model provides a liquid cooling plate structure based on bidirectional parallel flow channels, including a liquid cooling plate body, a water inlet flow channel, a first liquid cooling flow channel, a second liquid cooling flow channel, a third liquid cooling flow channel, a fourth liquid cooling flow channel, a water outlet flow channel, a water inlet pipe and a water outlet pipe, wherein:

[0007] A water inlet channel is provided on the liquid cooling plate body, and the first liquid cooling channel, the second liquid cooling channel, the third liquid cooling channel and the fourth liquid cooling channel are all connected to the water inlet channel, and the first liquid cooling channel, the second liquid cooling channel, the third liquid cooling channel and the fourth liquid cooling channel are sequentially distributed in the length direction of the liquid cooling plate body and are connected to each other;

[0008] The water outlet channel is arranged on the liquid cooling plate body and is connected with the first liquid cooling channel, the second liquid cooling channel, the third liquid cooling channel and the fourth liquid cooling channel. The water inlet pipe is connected with the water inlet channel, and the water outlet pipe is connected with the water outlet channel.

[0009] Based on the above technical solution, preferably, the water inlet pipe and the water outlet pipe are both connected to one side of the liquid cooling plate body, and the distance between the water inlet pipe and the water outlet pipe in the length direction of the liquid cooling plate body is a mm, and a<350.

[0010] On the basis of the above technical solution, preferably, the water inlet channel includes a first water inlet channel, a second water inlet channel and a third water inlet channel, wherein:

[0011] The first water inlet is connected to the water inlet pipe, and the first water inlet and the second water inlet are both connected to the first water inlet, the first water inlet and the second water inlet are located on both sides of the liquid cooling plate body in the length direction of the liquid cooling plate body, the first liquid cooling flow channel is connected to the second water inlet, the fourth liquid cooling flow channel is connected to the third water inlet, and the second liquid cooling flow channel and the third liquid cooling flow channel are both connected to the first water inlet.

[0012] On the basis of the above technical solution, preferably, the first liquid cooling channel, the second liquid cooling channel, the third liquid cooling channel and the fourth liquid cooling channel each include two flow channels, and the two flow channels are distributed in the width direction of the liquid cooling plate body, and the two flow channels are interconnected.

[0013] On the basis of the above technical solution, preferably, the plurality of flow channels are all connected to the water inlet channel.

[0014] On the basis of the above technical solution, preferably, the flow channel is an S-shaped channel.

[0015] On the basis of the above technical solution, preferably, it also includes a current limiting block, wherein:

[0016] The flow limiting block is arranged inside the water inlet flow channel, the flow channel and the water outlet flow channel, and is used to limit the flow of the coolant from both sides of the flow limiting block.

[0017] On the basis of the above technical solution, preferably, the water outlet channel includes a main water outlet channel, a first water outlet branch channel and a second water outlet branch channel, wherein:

[0018] The water outlet main channel is connected to the first liquid cooling channel, the second liquid cooling channel, the third liquid cooling channel and the fourth liquid cooling channel;

[0019] The first water outlet branch and the second water outlet branch are distributed in the length direction of the liquid cooling plate body and are interconnected. The first water outlet branch and the second water outlet branch are both located between the second liquid cooling channel and the third liquid cooling channel. The water outlet pipe is connected to the first water outlet branch and the second water outlet branch.

[0020] On the basis of the above technical solution, preferably, a first assembly gap is formed between two adjacent flow channels in the width direction of the liquid cooling plate body, a second assembly gap is formed between two adjacent flow channels in the length direction of the liquid cooling plate body, a third assembly gap is formed between the first water outlet branch channel and the second water outlet branch channel, and a mounting hole connected to the first assembly gap, the second assembly gap and the third assembly gap is opened on the liquid cooling plate body.

[0021] On the basis of the above technical solution, preferably, the water inlet pipe and the water outlet pipe are both connected to the external pipeline through a connector.

[0022] The liquid cooling plate structure based on bidirectional parallel flow channels of the utility model has the following beneficial effects compared with the prior art:

[0023] (1) The first liquid-cooling channel, the second liquid-cooling channel, the third liquid-cooling channel and the fourth liquid-cooling channel are provided to dissipate heat. Each liquid-cooling channel is connected to the water inlet channel so that cooling water can flow evenly into each liquid-cooling channel. Each liquid-cooling channel is connected to each other so that heat can be transferred between the liquid-cooling channels, so that the temperature of the cooling water in each liquid-cooling channel is uniform, thereby increasing the heat dissipation effect of the liquid cooling plate of the present application on the battery.

[0024] (2) By setting the water inlet pipe and the water outlet pipe on one side of the liquid cooling plate body, and a<350, the distance between the water inlet pipe and the water outlet pipe is shorter. If a>350, the distance between the water inlet pipe and the water outlet pipe will be larger. Since the components above the liquid cooling plate are arranged in a compact manner, if an assembly space is set at the water inlet pipe and the water outlet pipe that are far apart, it will hinder the arrangement of the components above the liquid cooling plate. Therefore, by setting a<350, it is convenient to arrange the components above the liquid cooling plate of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a three-dimensional diagram of the liquid cooling plate structure based on the bidirectional parallel flow channels of the utility model;

[0027] Figure 2 It is a rear view of the liquid cooling plate structure based on bidirectional parallel flow channels of the present invention. DETAILED DESCRIPTION

[0028] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figures 1-2 As shown, the liquid cooling plate structure based on the bidirectional parallel flow channel of the utility model comprises a liquid cooling plate body 1, a water inlet flow channel 2, a first liquid cooling flow channel 31, a second liquid cooling flow channel 32, a third liquid cooling flow channel 33, a fourth liquid cooling flow channel 34, a water outlet flow channel 4, a water inlet pipe 51 and a water outlet pipe 52, wherein the water inlet flow channel 2 is arranged on the liquid cooling plate body 1, and the first liquid cooling flow channel 31, the second liquid cooling flow channel 32, the third liquid cooling flow channel 33 and the fourth liquid cooling flow channel 34 are all connected to the water inlet flow channel 2. The flow channel 2 is connected, the first liquid cooling flow channel 31, the second liquid cooling flow channel 32, the third liquid cooling flow channel 33 and the fourth liquid cooling flow channel 34 are distributed in sequence in the length direction of the liquid cooling plate body 1 and are connected to each other; the water outlet flow channel 4 is arranged on the liquid cooling plate body 1, and is connected to the first liquid cooling flow channel 31, the second liquid cooling flow channel 32, the third liquid cooling flow channel 33 and the fourth liquid cooling flow channel 34, the water inlet pipe 51 is connected to the water inlet flow channel 2, and the water outlet pipe 52 is connected to the water outlet flow channel 4.

[0030] In a specific implementation, external cooling water flows into the interior of the water inlet channel 2 through the water inlet pipe 51, and simultaneously flows into the interior of the first liquid cooling channel 31, the second liquid cooling channel 32, the third liquid cooling channel 33 and the fourth liquid cooling channel 34 through the water inlet channel 2, and finally merges into the interior of the water outlet channel 4, and flows out from the water outlet pipe 52. The first liquid cooling channel 31, the second liquid cooling channel 32, the third liquid cooling channel 33 and the fourth liquid cooling channel 34 all play a role in heat dissipation. By setting each liquid cooling channel to be connected to the water inlet channel 2, the cooling water can flow evenly into the interior of each liquid cooling channel. By setting each liquid cooling channel to be connected to each other, heat can be transferred between each liquid cooling channel, so that the temperature of the cooling water in each liquid cooling channel is uniform, thereby increasing the heat dissipation effect of the liquid cooling plate of the present application on the battery.

[0031] As a preferred embodiment, the water inlet pipe 51 and the water outlet pipe 52 are both connected to one side of the liquid cooling plate body 1, and the distance between the water inlet pipe 51 and the water outlet pipe 52 in the length direction of the liquid cooling plate body 1 is a mm, and a<350.

[0032] Such a design makes the distance between the water inlet pipe 51 and the water outlet pipe 52 shorter. If a>350, the distance between the water inlet pipe 51 and the water outlet pipe 52 will be larger. Since the components above the liquid cooling plate are arranged in a compact manner, if an assembly space is provided at the water inlet pipe 51 and the water outlet pipe 52 which are far apart, it will hinder the arrangement of the components above the liquid cooling plate. Therefore, by setting a<350, it is convenient to arrange the components above the liquid cooling plate of this application.

[0033] As a preferred embodiment, the water inlet channel 2 includes a first water inlet channel 21, a second water inlet channel 22 and a third water inlet channel 23, wherein the first water inlet channel 21 is connected to the water inlet pipe 51, and the first water inlet channel 21 and the second water inlet channel 22 are both connected to the first water inlet channel 21, the first water inlet channel 21 and the second water inlet channel 22 are located on both sides of the liquid cooling plate body 1 in the length direction of the liquid cooling plate body 1, the first liquid cooling channel 31 is connected to the second water inlet channel 22, the fourth liquid cooling channel 34 is connected to the third water inlet channel 23, and the second liquid cooling channel 32 and the third liquid cooling channel 33 are both connected to the first water inlet channel 21.

[0034] In a specific implementation, the second water inlet 22 and the third water inlet 23 are both vertically connected to the first water inlet 21 to form a rectangular pipeline with a single-side opening, and the first liquid cooling channel 31, the second liquid cooling channel 32, the third liquid cooling channel 33 and the fourth liquid cooling channel 34 are all located between the first water inlet 21, the second water inlet 22 and the third water inlet 23 for connection, so as to facilitate uniform water supply to each liquid cooling channel.

[0035] As a preferred embodiment, the first liquid cooling channel 31, the second liquid cooling channel 32, the third liquid cooling channel 33 and the fourth liquid cooling channel 34 each include two flow channels 6, and the two flow channels 6 are distributed in the width direction of the liquid cooling plate body 1, and the two flow channels 6 are interconnected.

[0036] The plurality of flow channels 6 are all connected to the water inlet channel 2 .

[0037] The flow channel 6 is an S-shaped channel.

[0038] By setting each liquid cooling channel to include two flow channels 6, the coolant has two water inlets when flowing into each liquid cooling channel. By setting the flow width of the flow channel 6 closer to the water inlet pipe 51 to be narrower, the coolant can flow evenly into each flow channel 6, so that the flow rate of the coolant flowing in each flow channel 6 is not much different, which is convenient for uniform heat dissipation of the battery.

[0039] By setting the flow channel 6 to be an S-shaped channel, the time required for the coolant to flow through the flow channel 6 is reduced, so that the coolant in the flow channel 6 has sufficient time to dissipate heat for the battery.

[0040] As a preferred embodiment, it also includes a flow limiting block 7, wherein the flow limiting block 7 is arranged inside the water inlet channel 2, the flow channel 6 and the water outlet channel 4, and is used to limit the flow of coolant from both sides of the flow limiting block 7.

[0041] By setting a flow limiting block 7 to limit the flow, the liquid cooling plate of the present application has a dual-channel flow effect. The flow rate is limited by the flow limiting block 7 to slow down the time required for the coolant to flow through the flow channel 6. At the same time, the liquid cooling plate of the present application has a dual-channel flow path, which is convenient for uniform heat dissipation of the battery.

[0042] As a preferred embodiment, the water outlet channel 4 includes a main water outlet channel 41, a first water outlet branch channel 42 and a second water outlet branch channel 43, wherein the main water outlet channel 41 is connected to the first liquid cooling channel 31, the second liquid cooling channel 32, the third liquid cooling channel 33 and the fourth liquid cooling channel 34; the first water outlet branch channel 42 and the second water outlet branch channel 43 are distributed in the length direction of the liquid cooling plate body 1 and are connected to each other, the first water outlet branch channel 42 and the second water outlet branch channel 43 are both located between the second liquid cooling channel 32 and the third liquid cooling channel 33, and the water outlet pipe 52 is connected to the first water outlet branch channel 42 and the second water outlet branch channel 43.

[0043] With this design, when the coolant is discharged, the coolant located inside each flow channel 6 is first discharged into the inside of the water outlet main channel 41, and then discharged from the water outlet pipe 52 after passing through the first water outlet branch channel 42 and the second water outlet branch channel 43. During this period, the first water outlet branch channel 42 and the second water outlet branch channel 43 also need liquid cooling effect on the battery.

[0044] As a preferred embodiment, a first assembly gap 81 is formed between two adjacent flow channels 6 in the width direction of the liquid cooling plate body 1, a second assembly gap 82 is formed between two adjacent flow channels 6 in the length direction of the liquid cooling plate body 1, a third assembly gap 83 is formed between the first water outlet branch channel 42 and the second water outlet branch channel 43, and a mounting hole 11 connected to the first assembly gap 81, the second assembly gap 82 and the third assembly gap 83 is opened on the liquid cooling plate body 1.

[0045] The three assembly gaps are provided to facilitate the installation of the liquid cooling plate body 1. Specifically, when installing the liquid cooling plate body 1, bolts are passed through the installation holes 11 for connection.

[0046] As a preferred embodiment, the water inlet pipe 51 and the water outlet pipe 52 are both connected to the external pipeline through a connector.

[0047] This design is to increase the sealing performance of the connection between the water inlet pipe 51 and the water outlet pipe 52.

[0048] The working principle of the utility model is introduced as follows:

[0049] External cooling water flows into the first water inlet channel 21 through the water inlet pipe 51, and flows into the second water inlet channel 22 and the third water inlet channel 23 through the first water inlet channel 21, and flows evenly from each water inlet channel to the four liquid cooling channels, thereby completing the liquid cooling treatment of the battery. The four liquid cooling channels are interconnected to facilitate heat exchange between the four liquid cooling channels, so that the temperature of the coolant flowing through each liquid cooling channel is not much different, thereby increasing the liquid cooling stability of the battery. By setting the flow channel 6 as an S-shaped channel and setting a flow limiting block 7 in the liquid cooling flow area, the time required for the coolant to flow through the flow channel is slowed down, so that the coolant has sufficient time to dissipate heat for the battery. At the same time, under the cover of the flow limiting block 7, the flow channels of the liquid cooling plate of the present application are all double-channel structures. By setting various assembly gaps, the assembly processing of the liquid cooling plate body 1 is facilitated.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A liquid cooling plate structure based on bidirectional parallel flow channels, characterized in that: It comprises a liquid cooling plate body (1), a water inlet channel (2), a first liquid cooling channel (31), a second liquid cooling channel (32), a third liquid cooling channel (33), a fourth liquid cooling channel (34), a water outlet channel (4), a water inlet pipe (51) and a water outlet pipe (52), wherein: A water inlet channel (2) is arranged on the liquid cooling plate body (1), and the first liquid cooling channel (31), the second liquid cooling channel (32), the third liquid cooling channel (33) and the fourth liquid cooling channel (34) are all connected to the water inlet channel (2), and the first liquid cooling channel (31), the second liquid cooling channel (32), the third liquid cooling channel (33) and the fourth liquid cooling channel (34) are sequentially distributed in the length direction of the liquid cooling plate body (1) and are connected to each other; The water outlet channel (4) is arranged on the liquid cooling plate body (1) and is connected to the first liquid cooling channel (31), the second liquid cooling channel (32), the third liquid cooling channel (33) and the fourth liquid cooling channel (34); the water inlet pipe (51) is connected to the water inlet channel (2), and the water outlet pipe (52) is connected to the water outlet channel (4).

2. The liquid cooling plate structure based on bidirectional parallel flow channels according to claim 1, characterized in that: The water inlet pipe (51) and the water outlet pipe (52) are both connected to one side of the liquid cooling plate body (1), and the distance between the water inlet pipe (51) and the water outlet pipe (52) in the length direction of the liquid cooling plate body (1) is a mm, and a<350.

3. The liquid cooling plate structure based on bidirectional parallel flow channels according to claim 1, characterized in that: The water inlet channel (2) comprises a first water inlet channel (21), a second water inlet channel (22) and a third water inlet channel (23), wherein: The first water inlet (21) is connected to the water inlet pipe (51), and the first water inlet (21) and the second water inlet (22) are both connected to the first water inlet (21); the first water inlet (21) and the second water inlet (22) are located on both sides of the liquid cooling plate body (1) in the length direction of the liquid cooling plate body (1); the first liquid cooling channel (31) is connected to the second water inlet (22); the fourth liquid cooling channel (34) is connected to the third water inlet (23); the second liquid cooling channel (32) and the third liquid cooling channel (33) are both connected to the first water inlet (21).

4. The liquid cooling plate structure based on bidirectional parallel flow channels according to claim 3, characterized in that: The first liquid cooling channel (31), the second liquid cooling channel (32), the third liquid cooling channel (33) and the fourth liquid cooling channel (34) each include two flow channels (6), and the two flow channels (6) are distributed in the width direction of the liquid cooling plate body (1), and the two flow channels (6) are interconnected.

5. The liquid cooling plate structure based on bidirectional parallel flow channels according to claim 4, characterized in that: The plurality of flow channels (6) are all connected to the water inlet channel (2).

6. The liquid cooling plate structure based on bidirectional parallel flow channels according to claim 5, characterized in that: The flow channel (6) is an S-shaped channel.

7. The liquid cooling plate structure based on bidirectional parallel flow channels according to claim 5, characterized in that: It also includes a current limiting block (7), wherein: A flow limiting block (7) is arranged inside the water inlet channel (2), the flow channel (6) and the water outlet channel (4) and is used to limit the flow of cooling liquid from both sides of the flow limiting block (7).

8. The liquid cooling plate structure based on bidirectional parallel flow channels according to claim 5, characterized in that: The water outlet channel (4) comprises a water outlet main channel (41), a first water outlet branch channel (42) and a second water outlet branch channel (43), wherein: The water outlet main channel (41) is connected to the first liquid cooling channel (31), the second liquid cooling channel (32), the third liquid cooling channel (33) and the fourth liquid cooling channel (34); The first water outlet branch (42) and the second water outlet branch (43) are distributed in the length direction of the liquid cooling plate body (1) and are interconnected; the first water outlet branch (42) and the second water outlet branch (43) are both located between the second liquid cooling channel (32) and the third liquid cooling channel (33); and the water outlet pipe (52) is connected to the first water outlet branch (42) and the second water outlet branch (43).

9. The liquid cooling plate structure based on bidirectional parallel flow channels according to claim 8, characterized in that: A first assembly gap (81) is formed between two adjacent flow channels (6) in the width direction of the liquid cooling plate body (1), a second assembly gap (82) is formed between two adjacent flow channels (6) in the length direction of the liquid cooling plate body (1), a third assembly gap (83) is formed between the first water outlet branch channel (42) and the second water outlet branch channel (43), and a mounting hole (11) connected to the first assembly gap (81), the second assembly gap (82) and the third assembly gap (83) is provided on the liquid cooling plate body (1).

10. The liquid cooling plate structure based on bidirectional parallel flow channels according to claim 1, characterized in that: The water inlet pipe (51) and the water outlet pipe (52) are both connected to an external pipeline via a plug-in connector.

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