Liquid cooling plate, battery pack and electric equipment

Abstract

The utility model provides a liquid cooling plate, a battery pack and electric equipment. The liquid cooling plate comprises a first substrate, a second substrate, a flow equalizing plate and a spoiler. The flow equalizing plate is arranged between the first base plate and the second base plate, a first cavity is formed between the flow equalizing plate and the first base plate, a second cavity is formed between the flow equalizing plate and the second base plate, flow equalizing holes are formed in the flow equalizing plate, and the first cavity is communicated with the second cavity through the flow equalizing holes. And the spoilers and the flow equalizing holes are arranged at intervals. The flow equalizing plate is located between the first substrate and the second substrate, and through arrangement of the flow equalizing holes and the flow disturbing pieces on the flow equalizing plate, the flowing state of liquid in the liquid cooling plate is effectively improved, turbulent motion is promoted, the heat transfer surface area is increased, the heat transfer rate is increased, and therefore the heat exchange effect is improved. When flowing, cooling liquid in the liquid cooling plate is continuously shunted through the spoilers and the flow equalizing holes, so that the cooling liquid is difficult to form stable low-speed laminar flow at all near-wall-surface positions of a circulation area, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange, and more specifically to a liquid cooling plate, a battery pack and electrical equipment. Background Art

[0002] Liquid cooling plates are devices used to dissipate heat, usually in electronic devices or computer hardware. Liquid cooling plates absorb heat and take it away by flowing liquid through a preset flow channel, thereby reducing the temperature of the device. When the coolant flows along the flow channel, it is inevitably affected by its own viscosity, causing the coolant to form a low-speed, stable laminar flow near the flow channel wall, resulting in a decrease in the convective heat transfer coefficient between the coolant and the flow channel wall, which deteriorates the heat transfer effect of the liquid cooling plate.

[0003] Therefore, it is necessary to provide a liquid cooling plate, a battery pack and an electrical device to at least partially solve the above problems. Utility Model Content

[0004] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0005] In order to at least partially solve the above problems, the first aspect of the present invention provides a liquid cooling plate, comprising:

[0006] A first substrate and a second substrate, wherein the first substrate and the second substrate are opposite to each other and spaced apart;

[0007] a flow balancing plate, the flow balancing plate being arranged between the first substrate and the second substrate, a first chamber being formed between the flow balancing plate and the first substrate, a second chamber being formed between the flow balancing plate and the second substrate, the flow balancing plate being provided with a flow balancing hole, and the first chamber and the second chamber being connected through the flow balancing hole; and

[0008] A spoiler is arranged at a distance from the flow balancing hole and is arranged in the first chamber and / or the second chamber.

[0009] According to the liquid cooling plate of the first aspect of the utility model, the flow equalizing plate is located between the first substrate and the second substrate. By setting the flow equalizing holes and the spoiler on the flow equalizing plate, the flow state of the liquid inside the liquid cooling plate is effectively improved, the occurrence of turbulent motion is promoted, the heat transfer surface area and the heat transfer rate are increased, and the heat exchange effect is improved. When the coolant in the liquid cooling plate flows, it is continuously diverted through the spoiler and the flow equalizing hole, making it difficult for the coolant to form a stable low-speed laminar flow at all near-wall positions in the circulation area, greatly improving the heat exchange coefficient between the coolant and the wall surfaces at various locations.

[0010] Optionally, the spoiler includes a first spoiler and a second spoiler, the first end of the first spoiler is connected to the flow equalizing plate, the second end of the first spoiler is located in the first chamber, the first end of the second spoiler is connected to the flow equalizing plate, and the second end of the second spoiler is located in the second chamber.

[0011] Optionally, the second end of the first spoiler is connected to the first substrate, and / or the second end of the second spoiler is connected to the second substrate.

[0012] Optionally, the first spoiler and the second spoiler are arranged correspondingly; and / or

[0013] The first spoiler and the second spoiler are an integral or separate structure.

[0014] Optionally, the spoiler comprises a shell, and a cold storage material is encapsulated inside the shell.

[0015] Optionally, the spoiler and the flow balancing hole are arranged at intervals along the length direction and / or width direction of the flow balancing plate.

[0016] Optionally, it also includes:

[0017] a liquid inlet, the liquid inlet being disposed on the first substrate or the second substrate;

[0018] A liquid outlet is disposed on the first substrate or the second substrate.

[0019] Optionally, a diverter plate is also included, which includes a first diverter plate and a second diverter plate, the first end of the first diverter plate is connected to the equalizing plate, the second end of the first diverter plate is located in the first chamber, the first end of the second diverter plate is connected to the equalizing plate, and the second end of the second diverter plate is located in the second chamber.

[0020] Optionally, the second end of the first diverter plate is connected to the first substrate; and / or

[0021] The second end of the second manifold is connected to the second substrate.

[0022] Optionally, the first splitter plate and the second splitter plate are arranged correspondingly; and / or

[0023] The first splitter plate and the second splitter plate are an integral or split structure.

[0024] Optionally, the diverter plates are divided into two groups, and the two groups of diverter plates are respectively arranged corresponding to the liquid inlet and the liquid outlet.

[0025] Optionally, the number of the diverter plates in each group is an even number; and / or

[0026] Each group of diverter plates is symmetrically distributed.

[0027] Optionally, the diverter plate corresponding to the liquid inlet is arranged to diverge from the liquid inlet toward each of the spoilers; and / or

[0028] The flow divider corresponding to the liquid outlet is arranged to diverge from the liquid outlet to each of the spoilers.

[0029] Optionally, there are multiple flow balancing plates, and the multiple flow balancing plates are arranged opposite to each other and at intervals.

[0030] A second aspect of the utility model provides a battery pack, comprising the above-mentioned liquid cooling plate.

[0031] According to the battery pack of the second aspect of the utility model, applying the liquid cooling plate to the battery pack can enhance the heat exchange effect of the battery, improve temperature control, increase safety, save energy and protect the environment, and enhance system stability.

[0032] A third aspect of the present invention provides an electrical device, comprising the above-mentioned battery pack.

[0033] According to the electrical equipment of the second aspect of the utility model, effective heat dissipation control can ensure that the battery pack operates at an optimal operating temperature, thereby improving the overall operating efficiency and performance of the electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0035] Figure 1 This is a three-dimensional exploded schematic diagram of a liquid cooling plate according to a preferred embodiment of the utility model;

[0036] Figure 2 This is a schematic front view of a liquid cooling plate according to a preferred embodiment of the present invention;

[0037] Figure 3 for Figure 2 An enlarged schematic diagram of part A in FIG.

[0038] Figure 4 It is a three-dimensional schematic diagram of the flow equalizing plate, spoiler, and diverter plate.

[0039] Description of Reference Numerals

[0040] 10: First substrate

[0041] 20: Second substrate

[0042] 30: Current balancing board

[0043] 31: First Chamber

[0044] 32: Second chamber

[0045] 33: Flow-equalizing hole

[0046] 40: Spoiler

[0047] 41: First spoiler

[0048] 42: Second spoiler

[0049] 401: Shell

[0050] 402: Cold storage materials

[0051] 51: Liquid inlet

[0052] 52: Liquid outlet

[0053] 60: Manifold

[0054] 61: First manifold

[0055] 62: Second manifold

[0056] 70: Sidewall

[0057] DL: Length direction

[0058] DW: width direction DETAILED DESCRIPTION

[0059] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0060] In this document, ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0061] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0062] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0063] Unless otherwise stated, the numerical ranges herein include not only the entire range within its two endpoints but also include several sub-ranges contained therein.

[0064] Now, exemplary embodiments according to the present utility model will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present utility model thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art.

[0065] Liquid cooling plates usually have preset flow channels inside. When the coolant flows along the flow channels, it will inevitably be affected by its own viscosity, causing the coolant to form a low-speed, stable laminar flow near the flow channel wall, resulting in a decrease in the convective heat transfer coefficient between the coolant and the flow channel wall, thereby worsening the heat exchange effect of the liquid cooling plate.

[0066] Reference Figure 1-Figure 4 The utility model provides a liquid cooling plate. The liquid cooling plate includes a first substrate 10, a second substrate 20, a flow equalizing plate 30, and a spoiler 40. The first substrate 10 and the second substrate 20 are opposite and spaced apart. The flow equalizing plate 30 is disposed between the first substrate 10 and the second substrate 20, a first chamber 31 is formed between the flow equalizing plate 30 and the first substrate 10, a second chamber 32 is formed between the flow equalizing plate 30 and the second substrate 20, the flow equalizing plate 30 is provided with a flow equalizing hole 33, and the first chamber 31 and the second chamber 32 are connected through the flow equalizing hole 33. The spoiler 40 is spaced apart from the flow equalizing hole 33, and the spoiler 40 is disposed in the first chamber 31 and / or the second chamber 32. In the utility model, the flow equalizing plate 30 is located between the first substrate 10 and the second substrate 20. The flow equalizing holes 33 and the spoiler 40 on the flow equalizing plate 30 enable the coolant to flow freely between the first chamber 31 and the second chamber 32, effectively improving the flow state of the liquid inside the liquid cooling plate, promoting the occurrence of turbulent motion, increasing the heat transfer surface area and heat transfer rate, and thus improving the heat exchange effect. When the coolant in the liquid cooling plate flows, it is continuously diverted through the spoiler 40 and the flow equalizing holes 33, making it difficult for the coolant to form a stable low-speed laminar flow at all near-wall positions in the circulation area, greatly improving the heat exchange coefficient between the coolant and the wall surfaces at various locations.

[0067] When the liquid cooling plate provided by the utility model is working, in addition to directly acting on the first substrate 10 and the second substrate 20, the external heat will also be conducted to the flow equalizing plate 30 along the wall surface of the spoiler 40. At this time, when the coolant flows through the inside of the liquid cooling plate, it will absorb heat simultaneously on the two surfaces of the flow equalizing plate 30, the surface of the spoiler 40, and the first substrate 10 and the second substrate 20. The heat absorption area is large, which can significantly improve the heat exchange efficiency of the liquid cooling plate.

[0068] Optionally, the spoiler 40 may be disposed only in the first chamber 31 or only in the second chamber 32. Optionally, the spoiler 40 includes a first spoiler 41 and a second spoiler 42, wherein the first end of the first spoiler 41 is connected to the flow equalizing plate 30, and the second end of the first spoiler 41 is located in the first chamber 31, the first end of the second spoiler 42 is connected to the flow equalizing plate 30, and the second end of the second spoiler 42 is located in the second chamber 32. Whether the spoiler 40 is located in the first chamber 31 or the second chamber 32, it has a good spoiler effect.

[0069] In some embodiments of the utility model, the first substrate 10 and the second substrate 20 have corresponding shapes and sizes. The liquid cooling plate further includes a side wall 70, which is connected to the outer peripheral edges of the first substrate 10 and the second substrate 20, and is surrounded by the first substrate 10 and the second substrate 20 to form a receiving cavity for the cooling liquid. The flow balancing plate 30 is disposed in the receiving cavity. The flow balancing plate 30 divides the receiving cavity into a first chamber 31 and a second chamber 32. Optionally, the outer peripheral edge of the flow balancing plate 30 is fixedly connected to the side wall 70.

[0070] In some embodiments of the present invention, there are multiple equalizing plates 30, and the multiple equalizing plates 30 are arranged opposite to each other and at intervals. The orthographic projections of the multiple equalizing plates 30 on the first substrate 10 overlap. Specifically, the equalizing holes 33 and the spoilers 40 on the multiple equalizing plates 30 overlap on the orthographic projections of the first substrate 10.

[0071] In some embodiments of the present invention, the first spoiler 41 and the second spoiler 42 are arranged correspondingly. That is, the orthographic projection of the first spoiler 41 on the equalizer plate 30 coincides with the orthographic projection of the second spoiler 42 on the equalizer plate 30. Optionally, the first spoiler 41 and the second spoiler 42 have the same length.

[0072] In some embodiments of the present utility model, the first spoiler 41 and the second spoiler 42 are split structures. Optionally, the first end of the first spoiler 41 is connected to the equalizing plate 30, and the second end of the first spoiler 41 is connected to the first substrate 10. That is, the first spoiler 41 is located between the equalizing plate 30 and the first substrate 10, and the two ends are respectively connected to the equalizing plate 30 and the first substrate 10. Optionally, the first end of the second spoiler 42 is connected to the equalizing plate 30, and the second end of the second spoiler 42 is connected to the second substrate 20. That is, the second spoiler 42 is located between the equalizing plate 30 and the second substrate 20, and the two ends are respectively connected to the equalizing plate 30 and the second substrate 20.

[0073] In other embodiments of the present invention, the first spoiler 41 and the second spoiler 42 are an integral structure. That is, the spoiler 40 passes through the flow equalizer 30. Optionally, the end of the spoiler 40 located in the first cavity 31 (that is, the second end of the first spoiler) can be connected to the first substrate 10. Optionally, the end of the spoiler 40 located in the second cavity 32 (that is, the second end of the second spoiler) can be connected to the second substrate 20.

[0074] By disposing the spoiler 40, the stability of the spoiler 40 itself is ensured, while the overall structural stability of the liquid cooling plate is enhanced, and vibration and deformation are reduced.

[0075] like Figure 3 As shown, in some embodiments of the utility model, the spoiler 40 includes a shell 401, and a cold storage material 402 is encapsulated inside the shell 401. Optionally, the shell 401 is made of metal. Optionally, the shell 401 is a hollow cylindrical structure. The cold storage material 402 has the characteristics of absorbing and releasing heat. By encapsulating the cold storage material 402 inside the shell 401, it can help balance the temperature changes inside the liquid cooling plate and improve the heat exchange efficiency. When the heat load of the liquid cooling plate is not high, the excess cold in the coolant is stored. When the load of the liquid cooling plate increases, the heat is absorbed by heat conduction to achieve the purpose of energy saving.

[0076] In some embodiments of the present invention, the spoiler 40 and the flow balancing hole 33 are arranged at intervals along the length direction DL and / or the width direction DW of the flow balancing plate 30. The spoiler 40 and the flow balancing hole 33 are regularly staggered to better guide the flow of liquid inside the liquid cooling plate, optimize the flow distribution, and improve the heat exchange efficiency.

[0077] In some embodiments of the present invention, the liquid cooling plate further includes a liquid inlet 51 and a liquid outlet 52. The liquid inlet 51 is disposed on the first substrate 10 or the second substrate 20. The liquid outlet 52 is disposed on the first substrate 10 or the second substrate 20. Optionally, the liquid inlet 51 and the liquid outlet 52 are located on the same substrate, which facilitates the distribution of the coolant inlet pipeline and the outlet pipeline.

[0078] In some embodiments of the present invention, the liquid cooling plate also includes a diverter plate 60, which includes a first diverter plate 61 and a second diverter plate 62. The first end of the first diverter plate 61 is connected to the equalizing plate 30, and the second end of the first diverter plate 61 is located in the first chamber 31. The first end of the second diverter plate 62 is connected to the equalizing plate 30, and the second end of the second diverter plate 62 is located in the second chamber 32.

[0079] In some embodiments of the present invention, the first splitter plate 61 and the second splitter plate 62 are arranged correspondingly. That is, the orthographic projection of the first splitter plate 61 on the equalizing plate 30 coincides with the orthographic projection of the second splitter plate 62 on the equalizing plate 30. Optionally, the first splitter plate 61 and the second splitter plate 62 have the same length.

[0080] In some embodiments of the utility model, the first diverter plate 61 and the second diverter plate 62 are split structures. Optionally, the first end of the first diverter plate 61 is connected to the equalizing plate 30, and the second end of the first diverter plate 61 is connected to the first substrate 10. That is, the first diverter plate 61 is located between the equalizing plate 30 and the first substrate 10, and the two ends are respectively connected to the equalizing plate 30 and the first substrate 10. Optionally, the first end of the second diverter plate 62 is connected to the equalizing plate 30, and the second end of the second diverter plate 62 is connected to the second substrate 20. That is, the second diverter plate 62 is located between the equalizing plate 30 and the second substrate 20, and the two ends are respectively connected to the equalizing plate 30 and the second substrate 20.

[0081] In other embodiments of the present invention, the first diverter plate 61 and the second diverter plate 62 are an integral structure. That is, the diverter plate 60 passes through the flow equalizing plate 30. Optionally, the end of the diverter plate 60 located in the first chamber 31 (i.e., the second end of the first spoiler) can be connected to the first substrate 10. Optionally, the end of the diverter plate located in the second chamber 32 (i.e., the second end of the second spoiler) can be connected to the second substrate 20.

[0082] By disposing the above-mentioned manifold plate 60, the stability of the manifold plate 60 itself is ensured, while the overall structural stability of the liquid cooling plate is enhanced, and vibration and deformation are reduced.

[0083] In some embodiments of the present invention, the manifold plates 60 are divided into two groups, and the two groups of manifold plates 60 are respectively arranged corresponding to the liquid inlet 51 and the liquid outlet 52 .

[0084] In some embodiments of the present invention, the number of each group of diverter plates 60 is an even number. The number of each group of diverter plates 60 is 2 to 6. For example, the number of each group of diverter plates 60 is 2. Two diverter plates 60 are arranged side by side along the width direction DW. Two diverter plates 60 are arranged in an "eight" shape on the flow equalizing plate 30.

[0085] In some embodiments of the present invention, each group of manifolds 60 are symmetrically distributed.

[0086] In some embodiments of the utility model, the diverter plate 60 corresponding to the liquid inlet 51 is arranged to diverge from the liquid inlet 51 to each spoiler 40. That is, in the orthographic projection on the flow equalizer 30, the diverter plate 60 is inclined from the liquid inlet 51 to the side wall 70, so that the coolant is evenly diverted from the liquid inlet 51 to each spoiler 40, ensuring the uniform flow of the liquid inside the entire liquid cooling plate, so that the heat can be more evenly transferred to each spoiler 40 and the heat dissipation surface, thereby improving the heat exchange efficiency.

[0087] In some embodiments of the utility model, the flow divider corresponding to the liquid outlet 52 is arranged to diverge from the liquid outlet 52 to each spoiler 40. That is, in the positive projection on the flow equalizing plate 30, the flow divider is inclined from the liquid outlet 52 to the side wall 70, so that the coolant is evenly concentrated from each spoiler 40 to the liquid outlet 52, ensuring the uniform flow of the liquid inside the entire liquid cooling plate. The resistance inside the system is reduced, the energy consumption is reduced, and the overall efficiency of the system is improved.

[0088] Based on the above embodiments, Figure 2 As shown, the inclination angle a of the splitter plate is 40°-60°.

[0089] The utility model further provides a battery pack, comprising the above-mentioned liquid cooling plate. Optionally, the first substrate 10 or the second substrate 20 of the liquid cooling plate is attached to the battery pack.

[0090] In some embodiments of the present invention, the liquid cooling plate is placed horizontally, that is, the first substrate 10 and the second substrate 20 are spaced apart in the vertical direction.

[0091] The heat generated by the battery pack during the charging and discharging process will be transferred to the first substrate 10 by heat conduction. At this time, the coolant flows into the accommodating cavity from the liquid inlet 51 of the liquid cooling plate, and under the action of the diverter plate 60, the flow equalizing plate 30 and the flow equalizing hole 33, the coolant moves horizontally to both sides of the flow equalizing plate 30, and is evenly distributed on the upper and lower sides of the flow equalizing plate 30. After that, under the action of the spoiler 40 and the flow equalizing hole 33 continuously diverting the coolant, the coolant maintains a relatively large turbulent state in all near-wall positions of the internal flow area of ​​the liquid cooling plate, and then flows out of the liquid cooling plate from the liquid outlet 52.

[0092] When the battery charge and discharge rate is too high or a fault occurs, causing the heat generation of the energy storage battery to increase sharply, the battery heating rate will exceed the normal heat absorption rate of the coolant at the first substrate 10 and the second substrate 20. At this time, the excess heat will spontaneously conduct heat along the wall of the spoiler 40, and finally reach and spread on the flow equalizing plate 30. At this time, the coolant at the center of the liquid cooling plate is far away from the first substrate 10 and the second substrate 20, and still maintains a relatively low temperature. Therefore, it will perform convection heat exchange with the two surfaces of the flow equalizing plate 30 to absorb this part of the excess heat.

[0093] When the normal heat generation rate of the energy storage battery is lower than the heat absorption limit rate of the coolant on the first substrate 10 and the second substrate 20, the excess cold in the coolant is transferred to the cold storage material 402 in the spoiler 40 to absorb the heat generated by the battery when the heat generated by the battery increases, thereby achieving the purpose of energy saving.

[0094] The utility model also provides an electric device, comprising the above-mentioned battery pack. Optionally, the electric device is a vehicle, an energy storage cabinet, etc.

[0095] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" appearing in this article may indicate that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0096] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of the protection claimed by the utility model.

Claims

1. A liquid cooling plate, characterized in that: include: A first substrate and a second substrate, wherein the first substrate and the second substrate are opposite to each other and spaced apart; A flow balancing plate, wherein the flow balancing plate is disposed between the first substrate and the second substrate, a first chamber is formed between the flow balancing plate and the first substrate, and a second chamber is formed between the flow balancing plate and the second substrate, and the flow balancing plate is provided with a flow balancing hole, and the first chamber and the second chamber are connected through the flow balancing hole; and A spoiler is arranged at a distance from the flow balancing hole, and the spoiler is arranged in the first chamber and / or the second chamber.

2. The liquid cooling plate according to claim 1, characterized in that: The spoiler includes a first spoiler and a second spoiler, the first end of the first spoiler is connected to the flow balancing plate, the second end of the first spoiler is located in the first chamber, the first end of the second spoiler is connected to the flow balancing plate, and the second end of the second spoiler is located in the second chamber.

3. The liquid cooling plate according to claim 2, characterized in that: The second end of the first spoiler is connected to the first substrate, and / or A second end portion of the second spoiler is connected to the second substrate.

4. The liquid cooling plate according to claim 2, characterized in that: The first spoiler and the second spoiler are arranged correspondingly; and / or The first spoiler and the second spoiler are an integral or separate structure.

5. The liquid cooling plate according to any one of claims 1 to 4, characterized in that: The spoiler comprises a shell, and a cold storage material is encapsulated inside the shell.

6. The liquid cooling plate according to claim 1, characterized in that: The spoiler and the flow balancing hole are arranged at intervals along the length direction and / or width direction of the flow balancing plate.

7. The liquid cooling plate according to claim 1, characterized in that: Also includes: a liquid inlet, the liquid inlet being disposed on the first substrate or the second substrate; A liquid outlet is disposed on the first substrate or the second substrate.

8. The liquid cooling plate according to claim 7, characterized in that: It also includes a diverter plate, which includes a first diverter plate and a second diverter plate, the first end of the first diverter plate is connected to the equalizing plate, the second end of the first diverter plate is located in the first chamber, the first end of the second diverter plate is connected to the equalizing plate, and the second end of the second diverter plate is located in the second chamber.

9. The liquid cooling plate according to claim 8, characterized in that: The second end of the first diverter plate is connected to the first substrate; and / or The second end of the second manifold is connected to the second substrate.

10. The liquid cooling plate according to claim 9, characterized in that: The first splitter plate and the second splitter plate are arranged correspondingly; and / or The first splitter plate and the second splitter plate are an integral or split structure.

11. The liquid cooling plate according to any one of claims 8 to 10, characterized in that: The diverter plates are divided into two groups, and the two groups of diverter plates are respectively arranged corresponding to the liquid inlet and the liquid outlet.

12. The liquid cooling plate according to claim 11, characterized in that: The number of the diverter plates in each group is an even number; and / or Each group of diverter plates is symmetrically distributed.

13. The liquid cooling plate according to claim 11, characterized in that: The diverter plate corresponding to the liquid inlet is arranged to diverge from the liquid inlet to each of the spoilers; and / or The flow divider corresponding to the liquid outlet is arranged to diverge from the liquid outlet to each of the spoilers.

14. The liquid cooling plate according to claim 1, characterized in that: There are multiple flow equalizing plates, and the multiple flow equalizing plates are arranged opposite to each other and at intervals.

15. A battery pack, characterized in that: Comprising a liquid cooling plate according to any one of claims 1-14.

16. An electrical equipment, characterized in that: Comprising the battery pack according to claim 15.

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