Liquid cooling plate, liquid cooling module and battery pack

Abstract

The utility model provides a liquid cooling plate, a liquid cooling module and a battery pack, the liquid cooling plate comprises a first liquid cooling area, a liquid inlet area and a second liquid cooling area, a liquid inlet flow channel is formed in the liquid inlet area, and liquid cooling flow channels communicated with the liquid inlet flow channel are respectively formed in the first liquid cooling area and the second liquid cooling area; the first liquid cooling area, the liquid inlet area and the second liquid cooling area are sequentially arranged along a first direction, so that a liquid cooling flow channel in the first liquid cooling area and a liquid path flow channel in the second liquid cooling area are respectively arranged on two opposite sides of the liquid inlet flow channel; therefore, the cooling liquid in the liquid inlet flow channel can flow into the liquid cooling flow channel in the first liquid cooling area and the liquid cooling flow channel in the second liquid cooling area at the same time, and the problem that the temperature of the cooling liquid in different liquid cooling areas is not uniform due to the time sequence problem of the cooling liquid flowing into the different liquid cooling areas is avoided. Therefore, the problem of large temperature difference of different areas of the battery module is avoided.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and specifically to a liquid cooling plate, a liquid cooling module and a battery pack. Background Art

[0002] With the rapid development of new energy technology, batteries have been widely used in various new energy vehicles and energy storage power stations. Batteries will generate heat during use, causing the battery temperature to rise, thereby affecting battery performance and even causing risks such as spontaneous combustion and explosion.

[0003] In the prior art, the battery is generally cooled by injecting coolant into the flow channel of the liquid cooling plate. As the coolant gradually flows in the flow channel, the flow channel resistance it encounters becomes increasingly larger, resulting in uneven coolant temperatures in different areas of the liquid cooling plate, thereby causing a large temperature difference in different areas of the battery. Utility Model Content

[0004] The present application mainly provides a liquid cooling plate, a liquid cooling module and a battery pack, which can avoid the problem of large temperature differences in different areas of the battery module.

[0005] To solve the above technical problems, a technical solution adopted in the present application is: providing a liquid cooling plate, the liquid cooling plate comprising a first liquid cooling zone, a liquid inlet zone and a second liquid cooling zone, a liquid inlet channel being formed in the liquid inlet zone, liquid cooling channels connected to the liquid inlet channel being respectively formed in the first liquid cooling zone and the second liquid cooling zone, the first liquid cooling zone, the liquid inlet zone and the second liquid cooling zone being arranged sequentially along a first direction, so that the liquid cooling channel in the first liquid cooling zone and the liquid channel in the second liquid cooling zone are respectively arranged on opposite sides of the liquid inlet channel.

[0006] In a specific embodiment, the liquid inlet area defines a central axis extending along a second direction, the second direction is arranged to intersect the first direction, and the liquid cooling channel in the first liquid cooling area and the liquid cooling channel in the second liquid cooling area are arranged symmetrically relative to the central axis.

[0007] In a specific embodiment, the liquid cooling channel in the first liquid cooling zone and the liquid cooling channel in the second liquid cooling zone respectively include a plurality of channel units, the plurality of channel units are arranged sequentially along the second direction, each of the channel units includes at least one liquid cooling channel branch, and the number of liquid cooling channel branches of the plurality of channel units increases sequentially in the second direction.

[0008] In a specific embodiment, the number of liquid-cooling channel branches of the plurality of channel units increases geometrically in the second direction.

[0009] In a specific embodiment, the liquid cooling plate further includes a liquid outlet area, in which a liquid outlet channel is formed, and the liquid outlet channel is respectively connected to the liquid cooling channel in the first liquid cooling area and the liquid cooling channel in the second liquid cooling area.

[0010] In a specific embodiment, the liquid outlet channel includes a first confluence branch, a second confluence branch and a liquid outlet channel branch, the first confluence branch is arranged on a side of the first liquid cooling zone away from the liquid inlet zone, and is respectively connected to multiple liquid cooling channel branches in the first liquid cooling zone, the second confluence branch is arranged on a side of the second liquid cooling zone away from the liquid inlet zone, and is respectively connected to multiple liquid cooling channel branches in the second liquid cooling zone, the liquid outlet channel branch is arranged on a side of the liquid inlet zone facing the second direction, and both ends of the liquid outlet channel branch are respectively connected to the first confluence branch and the second confluence branch.

[0011] In a specific embodiment, a spoiler is provided in the liquid outlet channel.

[0012] In a specific embodiment, the liquid inlet channel includes a liquid inlet channel branch and a liquid branch channel branch, the liquid branch channel branch is connected to the liquid cooling channel in the first liquid cooling zone and the liquid cooling channel in the second liquid cooling zone, respectively, and the liquid cooling channel in the first liquid cooling zone, the liquid branch channel branch and the liquid cooling channel in the second liquid cooling zone are arranged in sequence along the first direction, and the liquid inlet channel branch is connected to the liquid branch channel branch and is arranged on the side of the liquid branch channel branch facing the second direction.

[0013] In order to solve the above-mentioned technical problems, another technical solution adopted in the present application is: to provide a liquid cooling module, the liquid cooling module includes a cover plate and the liquid cooling plate, the cover plate is stacked on the liquid cooling plate, the cover plate is formed with a liquid inlet and a liquid outlet, the liquid inlet is connected to the liquid inlet channel, and the liquid outlet is respectively connected to the liquid cooling channels in the first liquid cooling zone and the second liquid cooling zone.

[0014] In order to solve the above technical problems, another technical solution adopted in the present application is: to provide a battery pack, the battery pack includes a battery module and the liquid cooling module, and the battery module is arranged on the liquid cooling plate and / or the cover plate.

[0015] The beneficial effect of the present application is that, different from the prior art, the liquid cooling plate provided in the embodiment of the present application includes a first liquid cooling zone, a liquid inlet zone and a second liquid cooling zone, a liquid inlet channel is formed in the liquid inlet zone, and liquid cooling channels connected to the liquid inlet channel are respectively formed in the first liquid cooling zone and the second liquid cooling zone, and the first liquid cooling zone, the liquid inlet zone and the second liquid cooling zone are arranged in sequence along a first direction, so that the liquid cooling channel in the first liquid cooling zone and the liquid channel in the second liquid cooling zone are respectively arranged on opposite sides of the liquid inlet channel, so that the cooling liquid in the liquid inlet channel can flow into the liquid cooling channel in the first liquid cooling zone and the liquid cooling channel in the second liquid cooling zone at the same time, avoiding the problem of uneven cooling liquid temperature in different liquid cooling zones due to the time sequence of the cooling liquid flowing into different liquid cooling zones, thereby avoiding the problem of large temperature difference in different areas of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the description of the implementation modes will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 is a front view structural schematic diagram of an implementation scheme of a liquid cooling plate provided in the present application;

[0018] Figure 2 yes Figure 1 Schematic diagram of the regional location of the liquid cooling plate;

[0019] Figure 3 yes Figure 1 A schematic diagram of the front view structure of the middle liquid inlet channel;

[0020] Figure 4 yes Figure 1 A schematic diagram of the front view structure of the liquid cooling channel in the first liquid cooling zone;

[0021] Figure 5 yes Figure 1 A schematic diagram of the front view structure of the middle liquid outlet channel;

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the liquid cooling module implementation scheme provided in this application. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with the accompanying drawings and implementation methods. It is particularly noted that the following implementation methods are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following implementation methods are only some implementation methods of the present application rather than all implementation methods. All other implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0024] The terms "first", "second" and "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second" and "third" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, and the manner is such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications in the implementation mode of this application (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. The manner, such as a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0025] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] Please also read Figure 1 and Figure 2 , Figure 1 is a front view structural schematic diagram of an embodiment of a liquid cooling plate 10 provided in the present application, Figure 2 yes Figure 1 Schematic diagram of the regional position of the liquid cooling plate 10. The liquid cooling plate 10 in this embodiment includes a first liquid cooling area R1, a liquid inlet area R2 and a second liquid cooling area R3.

[0027] The liquid inlet channel 101 is formed in the liquid inlet area R2, and the first liquid cooling area R1 and the second liquid cooling area R3 are respectively formed with liquid cooling channels 102 connected to the liquid inlet channel 101, so that the coolant is first injected into the liquid inlet channel 101, and then flows from the liquid inlet channel 101 into the liquid cooling channel 102 in the first liquid cooling area R1 and the liquid cooling channel 102 in the second liquid cooling area R3. The first liquid cooling area R1, the liquid inlet area R2 and the second liquid cooling area R3 are arranged along the first direction A according to the liquid cooling channel 102 in the liquid cooling area R1. The liquid cooling channel 102 in the first liquid cooling zone R1 and the liquid cooling channel 102 in the second liquid cooling zone R3 are arranged on opposite sides of the liquid inlet channel 101, respectively, so that the coolant in the liquid inlet channel 101 can flow into the liquid cooling channel 102 in the first liquid cooling zone R1 and the liquid cooling channel 102 in the second liquid cooling zone R3 at the same time, avoiding the problem of the coolant flowing into different liquid cooling zones causing uneven coolant temperatures in different liquid cooling zones due to the time sequence.

[0028] Optionally, the liquid inlet area R2 is defined with a central axis I extending along a second direction B, and the second direction B is cross-arranged with the first direction A. In the present embodiment, the second direction B is perpendicular to the first direction A. It can be understood that the central axis I is only a virtual line artificially defined for the sake of convenience of explanation.

[0029] Among them, the liquid cooling channel 102 in the first liquid cooling zone R1 and the liquid cooling channel 102 in the second liquid cooling zone R3 are symmetrically arranged relative to the central axis I. Through this arrangement, the liquid cooling channel 102 in the first liquid cooling zone R1 and the liquid cooling channel 102 in the second liquid cooling zone R3 are structurally identical, so that the flow channel resistance of the coolant in the liquid cooling channel 102 in the first liquid cooling zone R1 and the liquid cooling channel 102 in the second liquid cooling zone R3 are the same, avoiding the problem of uneven coolant temperature in different liquid cooling zones due to different flow channel resistances in different liquid cooling zones.

[0030] Please also read Figure 2 and Figure 3 , Figure 3 yes Figure 1The front view of the structure of the liquid inlet channel 101 is shown in FIG. 1 , wherein the liquid inlet channel 101 includes a liquid inlet channel branch 1011 and a liquid branch channel branch 1012, and the liquid branch channel branch 1012 is connected to the liquid cooling channel 102 in the first liquid cooling zone R1 and the liquid cooling channel 102 in the second liquid cooling zone R3, respectively. The liquid cooling channel 102 in the first liquid cooling zone R1, the liquid branch channel 1012, and the liquid cooling channel 102 in the second liquid cooling zone R3 are connected along the first direction. Arranged in sequence toward A, the liquid inlet channel branch 1011 is connected to the liquid separation channel branch 1012 and is arranged on the side of the liquid separation channel branch 1012 facing the second direction B, so that the coolant is first injected into the liquid inlet channel branch 1011, and then flows into the liquid separation channel branch 1012, and finally flows from the liquid separation channel branch 1012 into the liquid cooling channel 102 in the first liquid cooling zone R1 and the liquid cooling channel 102 in the second liquid cooling zone R3.

[0031] The second direction B includes two opposite sub-directions B1 and B2. In this embodiment, the liquid inlet channel branch 1011 is disposed on the side of the liquid separation channel branch 1012 facing the sub-direction B1.

[0032] Specifically, the liquid inlet area R2 includes a main liquid inlet area R21 and a diversion area R22. The first liquid cooling area R1, the diversion area R22 and the second liquid cooling area R3 are arranged in sequence along the first direction A. The diversion area R22 is formed with the above-mentioned liquid diversion channel branch 1012 and defines the above-mentioned central axis I. The main liquid inlet area R21 is arranged on the side of the diversion area R22 facing the sub-direction B1, and the main liquid inlet area R21 is formed with the above-mentioned liquid inlet channel branch 1011.

[0033] Furthermore, the liquid distribution channel branch 1012 includes a first branch 101a and a second branch 101b, the first branch 101a is respectively connected to the liquid inlet channel branch 1011 and the liquid cooling channel 102 in the first liquid cooling zone R1, the second branch 101b is respectively connected to the liquid inlet channel 1011 branch and the liquid cooling channel 102 in the second liquid cooling zone R3, and the first branch 101a and the second branch 101b are symmetrically arranged relative to the central axis I.

[0034] Specifically, the central axis I defined in the diversion area R22 divides the diversion area R22 into a first sub-diversion area R221 and a second sub-diversion area R222. A first branch 101a is formed in the first sub-diversion area R221, and a second branch 101b is formed in the second sub-diversion area R222.

[0035] See also Figure 2 and Figure 4 , Figure 4 yes Figure 1The front view structural schematic diagram of the liquid-cooling channel 102 in the first liquid-cooling zone R1, the liquid-cooling channel 102 in the first liquid-cooling zone R1 and the liquid-cooling channel 102 in the second liquid-cooling zone R3 respectively include a plurality of channel units 102a, and the plurality of channel units 102a are arranged in sequence along the second direction B. In the present embodiment, that is, the plurality of channel units 102a are arranged in sequence along the sub-direction B2, each channel unit 102a includes at least one liquid-cooling channel branch 1021, and the number of liquid-cooling channel branches 1021 of the plurality of channel units 102a increases sequentially in the second direction B.

[0036] Specifically, the first liquid cooling zone R1 includes a plurality of first sub-liquid cooling zones R11, and the plurality of first sub-liquid cooling zones R11 are sequentially arranged along the sub-direction B2. The second liquid cooling zone R3 includes a plurality of second sub-liquid cooling zones R31, and the second sub-liquid cooling zones R31 are sequentially arranged along the sub-direction B2. A flow channel unit 102a is formed in each first sub-liquid cooling zone R11 and each second sub-liquid cooling zone R31, respectively. The number of liquid cooling flow channel branches 1021 of the plurality of flow channel units 102a increases sequentially in the sub-direction B2. In this arrangement, when the coolant flows sequentially in the liquid inlet flow channel 101 along the sub-direction B2 to the plurality of first sub-liquid cooling zones R11, and multiple second sub-liquid cooling zones R31, in the time sequence of the arrival of the coolant, the number of liquid-cooling flow channel branches 1021 in the first sub-liquid cooling zone R11 and the second sub-liquid cooling zone R31 located later in time is greater than the number of liquid-cooling flow channel branches 1021 in the first sub-liquid cooling zone R11 and the second sub-liquid cooling zone R31 located earlier in time, so that the liquid-cooling flow channel branches 1021 in the first sub-liquid cooling zone R11 and the second sub-liquid cooling zone R31 located later in time can allocate more coolant flow, thereby improving the temperature consistency of the coolant in different first sub-liquid cooling zones R11 and different second sub-liquid cooling zones R31.

[0037] Optionally, the number of the liquid cooling channel branches 1021 of the plurality of channel units 102a increases geometrically in the second direction B, for example: Figure 4 As shown, the numbers of the liquid-cooling channel branches 1021 of the three channel units 102a are 1, 2, and 4 respectively in the sub-direction B2.

[0038] It can be understood that the liquid cooling channel 102 in the second liquid cooling zone R3 is structurally the same as the liquid cooling channel 102 in the first liquid cooling zone R1. Therefore, the liquid cooling channel 102 in the first liquid cooling zone R1 is taken as an example in the diagram of this embodiment, and the liquid cooling channel 102 in the second liquid cooling zone R3 is not repeated.

[0039] Please also read Figure 1 , Figure 2 and Figure 5 , Figure 5 yes Figure 1The front view structural schematic diagram of the liquid outlet channel 103, the liquid cooling plate 10 in this embodiment also includes a liquid outlet area R4, and a liquid outlet channel 103 is formed in the liquid outlet area R4, and the liquid outlet channel 103 is respectively connected with the liquid cooling channel 102 in the first liquid cooling zone R1 and the liquid cooling channel 102 in the second liquid cooling zone R3, so that the coolant in the first liquid cooling zone R1 and the second liquid cooling zone R3 is discharged from the liquid outlet channel 103, thereby completing the cooling process.

[0040] The outlet flow channel 103 includes a first confluence branch 1031, a second confluence branch 1032 and a liquid outlet flow channel branch 1033. The first confluence branch 1031 is arranged on a side of the first liquid cooling zone R1 away from the liquid inlet zone R2, and is respectively connected to a plurality of liquid cooling flow channel branches 1021 in the first liquid cooling zone R1, so that the coolant in the first liquid cooling zone R1 converges to the first confluence branch 1031 through the plurality of liquid cooling flow channel branches 1021. The second confluence branch 1032 is arranged on a side of the second liquid cooling zone R3 away from the liquid inlet zone R2, and is respectively connected to a plurality of liquid cooling flow channel branches 1021 in the second liquid cooling zone R3, so that the coolant in the first liquid cooling zone R1 converges to the first confluence branch 1031 through the plurality of liquid cooling flow channel branches 1021. The cooling liquid in the second liquid cooling zone R3 converges to the second convergence branch 1032 through multiple liquid cooling flow channel branches 1021, and the liquid outlet flow channel branch 1033 is arranged on the side of the liquid inlet zone R2 facing the second direction B. In this embodiment, the liquid outlet flow channel branch 1033 is arranged on the side of the liquid inlet flow channel branch facing the sub-direction B1, and the two ends of the liquid outlet flow channel branch 1033 are respectively connected to the first convergence branch 1031 and the second convergence branch 1032, so that the cooling liquid in the first convergence branch 1031 and the second convergence branch 1032 converges to the liquid outlet flow channel branch 1033 and is discharged from the liquid outlet flow channel branch 1033 to complete the cooling process.

[0041] Specifically, the liquid outlet area R4 includes a first confluence area R41, a second confluence area R42 and a main liquid outlet area R43. The first confluence area R41 is arranged on a side of the first liquid cooling area R1 away from the liquid inlet area R2, and a first confluence branch 1031 is formed in the first confluence area R41. The second confluence area R42 is arranged on a side of the second liquid cooling area R3 away from the liquid inlet area R2, and a second confluence branch 1032 is formed in the second confluence area R42. The main liquid outlet area R43 is arranged on a side of the main liquid inlet area R21 toward the sub-direction B1, and a liquid outlet flow channel branch 1033 is formed in the main liquid outlet area R43.

[0042] The first bus branch 1031 and the second bus branch 1032 are symmetrically arranged relative to the central axis I.

[0043] Furthermore, a spoiler block 103a is provided in the liquid outlet channel 103 to reduce the flow rate and pressure loss, and also to enhance the structural strength of the cold plate. In this embodiment, the first confluence branch 1031, the second confluence branch 1032 and the liquid outlet channel branch 1033 of the liquid outlet channel 103 are all provided with a spoiler block 103a.

[0044] See also Figure 6 , Figure 6 It is a three-dimensional structural schematic diagram of an embodiment of a liquid cooling module 20 provided in the present application. The liquid cooling module 20 in this embodiment includes a cover plate 21 and the liquid cooling plate 10 in the above embodiment. The cover plate 21 is stacked on the liquid cooling plate 10. The cover plate 21 is formed with a liquid inlet 201 and a liquid outlet 202. The liquid inlet 201 is connected to the liquid inlet channel 101, so that the coolant is injected into the liquid inlet channel 101 through the liquid inlet 201. In this embodiment, the liquid inlet 201 is connected to the liquid inlet channel branch 1011, and the liquid outlet 202 is respectively connected to the liquid cooling channels 102 in the first liquid cooling zone R1 and the second liquid cooling zone R3, so that the coolant in the first liquid cooling zone R1 and the second liquid cooling zone R3 is discharged. In this embodiment, the liquid outlet 202 is connected to the liquid outlet channel branch 1033.

[0045] The embodiment of the present application also provides a battery pack, which includes a battery module and the liquid cooling module 20 in the above embodiment. The battery module is arranged on the liquid cooling plate 10 and / or the cover plate 21, so that the battery module is cooled in the process of the coolant being injected from the liquid inlet 201 to the coolant being discharged from the liquid outlet 202. Since the liquid cooling plate 10 in this embodiment can avoid uneven cooling liquid temperature in different liquid cooling zones, the problem of large temperature difference in different areas of the battery module can be avoided in the process of cooling the battery module by the coolant in different liquid cooling zones.

[0046] Different from the prior art, the liquid cooling plate provided in the embodiment of the present application includes a first liquid cooling zone, a liquid inlet zone and a second liquid cooling zone, a liquid inlet channel is formed in the liquid inlet zone, and liquid cooling channels connected to the liquid inlet channel are respectively formed in the first liquid cooling zone and the second liquid cooling zone, and the first liquid cooling zone, the liquid inlet zone and the second liquid cooling zone are arranged in sequence along a first direction, so that the liquid cooling channel in the first liquid cooling zone and the liquid channel in the second liquid cooling zone are respectively arranged on opposite sides of the liquid inlet channel, so that the cooling liquid in the liquid inlet channel can flow into the liquid cooling channel in the first liquid cooling zone and the liquid cooling channel in the second liquid cooling zone at the same time, avoiding the problem of uneven cooling liquid temperature in different liquid cooling zones due to the time sequence of the cooling liquid flowing into different liquid cooling zones, thereby avoiding the problem of large temperature difference in different areas of the battery module.

[0047] The above description is only part of the implementation methods of the present application, and does not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A liquid cooling plate, characterized in that: The liquid cooling plate includes a first liquid cooling zone, a liquid inlet zone and a second liquid cooling zone, a liquid inlet channel is formed in the liquid inlet zone, and liquid cooling channels connected to the liquid inlet channel are respectively formed in the first liquid cooling zone and the second liquid cooling zone, and the first liquid cooling zone, the liquid inlet zone and the second liquid cooling zone are arranged in sequence along a first direction, so that the liquid cooling channel in the first liquid cooling zone and the liquid channel in the second liquid cooling zone are respectively arranged on opposite sides of the liquid inlet channel.

2. The liquid cooling plate according to claim 1, characterized in that: The liquid inlet area is defined by a central axis extending along a second direction, the second direction is arranged to intersect the first direction, and the liquid cooling channel in the first liquid cooling area and the liquid cooling channel in the second liquid cooling area are arranged symmetrically with respect to the central axis.

3. The liquid cooling plate according to claim 2, characterized in that: The liquid cooling channel in the first liquid cooling zone and the liquid cooling channel in the second liquid cooling zone respectively include multiple channel units, and the multiple channel units are arranged in sequence along the second direction. Each of the channel units includes at least one liquid cooling channel branch, and the number of liquid cooling channel branches of the multiple channel units increases in sequence in the second direction.

4. The liquid cooling plate according to claim 3, characterized in that: The number of liquid-cooling channel branches of the plurality of channel units increases geometrically in the second direction.

5. The liquid cooling plate according to claim 3, characterized in that: The liquid cooling plate further includes a liquid outlet area, in which a liquid outlet channel is formed. The liquid outlet channel is respectively connected to the liquid cooling channel in the first liquid cooling area and the liquid cooling channel in the second liquid cooling area.

6. The liquid cooling plate according to claim 5, characterized in that: The liquid outlet channel includes a first confluence branch, a second confluence branch and a liquid outlet channel branch. The first confluence branch is arranged on a side of the first liquid cooling zone away from the liquid inlet zone, and is respectively connected to multiple liquid cooling channel branches in the first liquid cooling zone. The second confluence branch is arranged on a side of the second liquid cooling zone away from the liquid inlet zone, and is respectively connected to multiple liquid cooling channel branches in the second liquid cooling zone. The liquid outlet channel branch is arranged on a side of the liquid inlet zone facing the second direction, and both ends of the liquid outlet channel branch are respectively connected to the first confluence branch and the second confluence branch.

7. The liquid cooling plate according to claim 5, characterized in that: A spoiler is arranged in the liquid outlet channel.

8. The liquid cooling plate according to claim 2, characterized in that: The liquid inlet channel includes a liquid inlet channel branch and a liquid branch channel branch, the liquid branch channel branch is respectively connected to the liquid cooling channel in the first liquid cooling zone and the liquid cooling channel in the second liquid cooling zone, and the liquid cooling channel in the first liquid cooling zone, the liquid branch channel branch and the liquid cooling channel in the second liquid cooling zone are arranged in sequence along the first direction, and the liquid inlet channel branch is connected to the liquid branch channel branch and is arranged on the side of the liquid branch channel branch facing the second direction.

9. A liquid cooling module, characterized in that: The liquid cooling module includes a cover plate and a liquid cooling plate according to any one of claims 1 to 8, wherein the cover plate is stacked on the liquid cooling plate, and the cover plate is formed with a liquid inlet and a liquid outlet, wherein the liquid inlet is connected to the liquid inlet channel, and the liquid outlet is respectively connected to the liquid cooling channels in the first liquid cooling zone and the second liquid cooling zone.

10. A battery pack, characterized in that: The battery pack includes a battery module and the liquid cooling module according to claim 9, and the battery module is arranged on the liquid cooling plate and / or the cover plate.

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