Liquid cooling plate, battery pack and electric equipment

Abstract

The embodiment of the utility model provides a liquid cooling plate, a battery pack and electric equipment, and relates to the technical field of batteries, the liquid cooling plate comprises a plate body and a plurality of turbulent flow bodies, a containing cavity is formed in the plate body, a liquid inlet and a liquid outlet which are communicated with the containing cavity are formed in the plate body, and a flow channel is formed in the containing cavity in the direction from the liquid inlet to the liquid outlet. The turbulent flow bodies are arranged in the containing cavity at intervals, and the turbulent flow bodies close to one side of the liquid inlet are arranged in a front-back staggered mode in the direction of the flow channel. According to the liquid cooling plate provided by the embodiment of the invention, the turbulence intensity can be increased when the cooling liquid flows through the gaps between the adjacent turbulence bodies, so that the heat exchange capability is improved, and the use performance of the battery is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a liquid cooling plate, a battery pack and an electric equipment. BACKGROUND

[0002] Batteries can provide power for electric equipment, such as battery packs used on new energy vehicles.

[0003] A battery pack usually consists of a shell, a battery module and a cooling plate. The shell has a receiving cavity, the battery module is arranged in the receiving cavity, and the cooling plate is in contact with one side of the battery module to exchange heat with the battery. In related technologies, the cooling plate is provided with a flow channel for cooling liquid to pass through to exchange heat sufficiently.

[0004] However, in the flow channel structure of the above cooling plate, the cooling liquid flows relatively smoothly, which results in insufficient heat exchange capacity of the cooling plate, thereby affecting the use performance of the battery. UTILITY MODEL CONTENT

[0005] Therefore, the present application provides a liquid cooling plate, a battery pack and an electric equipment to solve the problem of insufficient heat exchange capacity of the cooling plate of the existing battery.

[0006] In a first aspect, the present application provides a liquid cooling plate, comprising a plate body and a plurality of turbulence bodies, the plate body has a receiving cavity, the plate body is provided with an inlet and an outlet which are in communication with the receiving cavity, and a flow channel is formed in the receiving cavity along the direction from the inlet to the outlet.

[0007] Each turbulence body is arranged in the receiving cavity, and the turbulence bodies near the inlet side are arranged in front and back staggered manner along the direction of the flow channel.

[0008] In a possible implementation, the liquid cooling plate further comprises a partition body, the partition body is arranged in the receiving cavity and divides the flow channel into at least an inlet section, a confluence section and an outlet section in sequence.

[0009] The inlet section and the outlet section are in communication through the confluence section, the side of the inlet section away from the confluence section is in communication with the inlet, and the side of the outlet section away from the confluence section is in communication with the outlet.

[0010] In a possible implementation, the turbulence bodies comprise first turbulence bodies, second turbulence bodies and third turbulence bodies, the first turbulence bodies are arranged in the inlet section.

[0011] The second turbulence bodies are arranged in the confluence section, and the third turbulence bodies are arranged in the outlet section.

[0012] In a possible implementation, the first turbulence bodies are arranged in first and second directions respectively, and the first turbulence bodies are arranged in front and back staggered manner along the direction of the flow channel.

[0013] The first direction intersects the second direction, the direction of the flow channel in the inlet section is consistent with the second direction, the direction of the flow channel in the confluence section is consistent with or opposite to the first direction, and the direction of the flow channel in the outlet section is opposite to the second direction.

[0014] In a possible implementation, the second disturbance bodies are arranged in the first direction.

[0015] In a possible implementation, the third disturbance bodies are arranged in the first direction and the second direction respectively, and the third disturbance bodies are arranged in front of and behind the direction of the flow channel.

[0016] Alternatively, the third disturbance bodies are arranged in front of and behind the direction of the flow channel.

[0017] In a possible implementation, the cross section of the disturbance body is one or more of a circle, a trapezoid, a pentagon, a hexagon and a water drop shape.

[0018] In a possible implementation, the cross section of at least part of the disturbance body is a pentagon, and one tip of the disturbance body faces away from the direction of the flow channel.

[0019] In a possible implementation, the barrier body divides the flow channel into two inlet sections, one confluence section and one outlet section in sequence, and the two inlet sections are located on the two sides of the outlet section respectively.

[0020] The direction of the flow channel in the inlet section and the outlet section is opposite, and the direction of the flow channel in the inlet section and the outlet section intersects the direction of the flow channel in the confluence section.

[0021] In a possible implementation, the plate body includes a first plate body and a second plate body, and each disturbance body is located on one side of the first plate body facing the second plate body.

[0022] One side of the second plate body facing the first plate body has a groove, the second plate body and the first plate body are spliced to form a containing cavity, and each disturbance body abuts against the second plate body.

[0023] In a possible implementation, at least two connectors are further included, the liquid inlet and the liquid outlet are located on the first plate body or the second plate body, and the two connectors are respectively inserted into the liquid inlet and the liquid outlet.

[0024] In a possible implementation, the liquid inlet and the liquid outlet are located on the same side.

[0025] In a possible implementation, at least one positioning part is further arranged on the plate body, and the positioning part is used for positioning the battery module.

[0026] In a second aspect, the application further provides a battery pack, comprising a shell, at least one battery module, and any one of the liquid cooling plates provided in the first aspect, the battery module is arranged in the shell, and one side of the plate body of the liquid cooling plate is in contact with one side of the battery module.

[0027] In a possible implementation, the number of battery modules is at least two, and the plate body is located between and in contact with the two battery modules.

[0028] In a third aspect, the application further provides a power consumption device, comprising a device body, and the device body is provided with any one of the battery packs provided in the second aspect.

[0029] The liquid cooling plate, the battery pack, and the power consumption device provided by the application, the liquid cooling plate comprises a plate body and a plurality of turbulence bodies, a containing cavity is arranged in the plate body, and a liquid inlet and a liquid outlet are formed on the plate body and are in communication with the containing cavity, so that the cooling liquid flows in or out, and a flow channel is formed in the containing cavity along the direction from the liquid inlet to the liquid outlet, the turbulence bodies are arranged in the containing cavity in intervals, and the turbulence bodies on the side close to the liquid inlet are arranged in front and back staggered manner along the direction of the flow channel, so that the turbulence intensity of the cooling liquid flowing through the gap between adjacent turbulence bodies is increased, and the heat exchange capacity is improved, so as to ensure the use performance of the battery. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0031] Figure 1 The exploded structural schematic diagram of the liquid cooling plate provided by the embodiment of the application;

[0032] Figure 2 The first arrangement form of the turbulence body in the embodiment of the application; Figure 1

[0033] The second arrangement form of the turbulence body in the embodiment of the application; Figure 3 Figure 1 The third arrangement form of the turbulence body in the embodiment of the application;

[0034] Figure 4 Figure 1 Another structure schematic diagram of the turbulence body in the embodiment of the application;

[0035] Figure 5 Another structure schematic diagram of the turbulence body in the embodiment of the application; Figure 1

[0036] Figure 6 ​​​A connection structure diagram of a battery module and a liquid cooling plate in a battery pack is provided.

[0037] Reference signs:

[0038] 10: battery module;

[0039] 100: plate body;

[0040] 101: first plate body;

[0041] 102: second plate body;

[0042] 110: accommodating cavity;

[0043] 111: liquid inlet;

[0044] 112: liquid outlet;

[0045] 120: positioning part;

[0046] 200: spoiler;

[0047] 210: first spoiler;

[0048] 220: second spoiler;

[0049] 230: third spoiler;

[0050] 300: barrier;

[0051] 400: joint. DETAILED DESCRIPTION

[0052] The exemplary embodiments will be described in detail herein below with reference to the accompanying drawings. In the following description, the same drawings refer to the same or similar elements. The following exemplary embodiments described in the exemplary embodiments do not represent all the embodiments consistent with the present application. Rather, they are merely examples of methods and apparatuses consistent with some aspects of the present application as detailed in the appended claims.

[0053] The terms "first", "second", "third", "fourth" and the like in the description and in the claims of the present application, and above-mentioned drawings, if any, are used to distinguish between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the use of the terms so-termed, data can be interchanged, where appropriate, to the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof, are intended to cover the non-exclusive inclusion, for example, a process, method, system, product or apparatus comprising a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or apparatuses.

[0054] As described in the background section, the existing cold plate is generally provided with one or more flow channels for the cooling liquid to flow through for heat exchange. The flow channels are curved or serpentine. However, the fluid flows relatively gently in these flow channels, and the heat exchange is not sufficient, resulting in insufficient heat exchange capacity, especially for power batteries with large heat generation.

[0055] In view of the above problems in the prior art, the present application provides a liquid cooling plate, a battery pack and an electric device. The liquid cooling plate provided by the present application comprises a plate body and a plurality of turbulence bodies. A containing cavity is arranged in the plate body, and a liquid inlet and a liquid outlet are arranged on the plate body and communicate with the containing cavity, so that the cooling liquid flows into or out of the containing cavity. A flow channel is formed in the containing cavity along the direction from the liquid inlet to the liquid outlet. The turbulence bodies are arranged in the containing cavity at intervals. Along the direction of the flow channel, the turbulence bodies on the side close to the liquid inlet are arranged in front and back staggered manner, so that the turbulence intensity of the cooling liquid flowing through the gap between the adjacent turbulence bodies is increased, the heat exchange capacity is improved, and the use performance of the battery is ensured.

[0056] The technical solutions of the present application will be described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes may not be described in detail in some examples.

[0057] In the first aspect, referring to Figures 1-5 The liquid cooling plate provided by the embodiments of the present application comprises a plate body 100 and a plurality of turbulence bodies 200. The plate body 100 has a containing cavity 110. The plate body 100 is provided with a liquid inlet 111 and a liquid outlet 112 which communicate with the containing cavity 110. A flow channel is formed in the containing cavity 110 along the direction from the liquid inlet 111 to the liquid outlet 112.

[0058] Each turbulent fluid 200 is spaced apart in the receiving cavity 110. Along the direction of the flow channel, the turbulent fluids 200 on the side closer to the liquid inlet 111 are arranged in a staggered manner.

[0059] In this embodiment, the plate 100 is used for coolant flow and can be a rectangular thin plate structure. At least one surface of the plate 100 is used to contact the battery module 10. The size of the plate 100 can be determined according to the number and total area of ​​the battery modules 10. The plate 100 has a receiving cavity 110, and the plate 100 is also provided with an inlet 111 and an outlet 112 communicating with the receiving cavity 110 for connection to the coolant circulation system pipeline.

[0060] In this embodiment, the turbulent fluid 200 is used at least to slow down the flow rate of the coolant in the receiving cavity 110. It can be columnar, sheet-like, block-like, or other structures. Each turbulent fluid 200 is spaced apart in the receiving cavity 110 and can be integrally formed with the inner wall of the plate 100 or connected to the inner wall of the plate 100 by welding, bonding, or other means, so that a flow channel is formed along the liquid inlet 111 through the gap between adjacent turbulent fluids 200 to the liquid outlet 112, through which the coolant flows.

[0061] Specifically, such as Figure 2 As shown, at least the turbulent fluid 200 near the inlet 111 is arranged in a staggered manner along the direction of the flow channel, such as along... Figure 2 The positive Y-axis is arranged in a staggered manner. In this way, when the coolant flows through the gaps between the various turbulent fluids 200, strong turbulence is formed at the end of the turbulent fluids 200, which enables sufficient heat exchange between the coolant and the plate 100, thereby performing thermal management of the battery module 10.

[0062] It should be noted that connectors, positioning parts, etc. can also be installed on the plate 100, depending on the actual needs.

[0063] It is understandable that, compared with the prior art, which involves opening flow channels within the plate and setting a small number of flow-blocking structures within the flow channels, the application of the liquid cooling plate in this embodiment of the application generates stronger turbulence by the coolant flowing through the gaps between the various turbulent fluids 200, thereby enhancing the rate of heat exchange between the coolant and the plate 100, improving the heat exchange capacity, and thus ensuring the performance of the battery.

[0064] Therefore, the liquid cooling plate provided in this embodiment includes a plate body 100 and a plurality of turbulent fluids 200. By providing a receiving cavity 110 in the plate body 100 and opening an inlet 111 and an outlet 112 on the plate body 100 that communicate with the receiving cavity 110, coolant can flow in or out. A flow channel is formed in the receiving cavity 110 along the direction from the inlet 111 to the outlet 112. By arranging each turbulent fluid 200 at intervals in the receiving cavity 110, and arranging the turbulent fluids 200 near the inlet 111 in a staggered manner along the direction of the flow channel, the turbulence intensity is increased when the coolant flows through the gap between adjacent turbulent fluids 200, thereby improving the heat exchange capacity and ensuring the performance of the battery.

[0065] In one possible design, a baffle 300 is also included, which is disposed within the receiving cavity 110 and sequentially divides the flow channel into at least one inlet section A, a confluence section B, and an outlet section C.

[0066] Inlet section A and outlet section C are connected through confluence section B. The side of inlet section A facing away from confluence section B is connected to inlet port 111, and the side of outlet section C facing away from confluence section B is connected to outlet port 112.

[0067] In this way, such as Figure 2 As shown, within a limited flow area, the flow channel can be made tortuous and narrow, extending the length of the coolant flow within the channel and thus further enhancing heat transfer. The baffle 300 can be in the form of a sheet, strip, or other structures. It can be integrally formed with the inner wall of the plate 100 or connected to the inner wall of the plate 100 by welding, bonding, or other methods. The specific shape and position of the baffle 300 can be determined according to actual needs, and this embodiment does not impose excessive restrictions.

[0068] Furthermore, in this embodiment, the turbulent fluid 200 includes a first turbulent fluid 210, a second turbulent fluid 220, and a third turbulent fluid 230, with the plurality of first turbulent fluids 210 located in the inlet section A.

[0069] Multiple second disturbance fluids 220 are located in the confluence section B, and multiple third disturbance fluids 230 are located in the outlet section C.

[0070] In other words, to achieve a more ideal flow velocity in different sections of the flow channel, the type or arrangement of the turbulent fluid 200 in inlet section A, confluence section B, and outlet section C can be set to different types. The coolant flow velocity in inlet section A should be minimized as much as possible, while the coolant flow velocity in confluence section B and outlet section C can be appropriately increased. In other words, the flow resistance in confluence section B and outlet section C should be less than or equal to the flow resistance in inlet section A.

[0071] In some embodiments, each of the first turbulent fluids 210 is arranged at intervals along a first direction and a second direction, and each of the first turbulent fluids 210 is arranged in a staggered manner along the direction of the flow channel.

[0072] Wherein, the first direction is perpendicular to the second direction, and the first direction is along Figure 2 As shown in the X-axis direction, the second direction is along Figure 2 As shown in the Y-axis direction, the direction of the flow channel in the inlet section is consistent with the second direction, the direction of the flow channel in the confluence section is consistent with or opposite to the first direction, and the direction of the flow channel in the outlet section is opposite to the second direction.

[0073] Furthermore, in this embodiment, each of the second turbulent fluids 220 is arranged at intervals along the first direction.

[0074] Furthermore, in this embodiment, each of the third turbulent fluids 230 is arranged at intervals along the first direction and the second direction, and each of the third turbulent fluids 230 is arranged in a staggered manner along the direction of the flow channel.

[0075] Alternatively, each of the third turbulent fluids 230 may be arranged sequentially in front of and behind along the direction of the flow channel.

[0076] In one example, such as Figure 2 As shown, the first turbulent fluid 210 has a pentagonal cross-section, the second turbulent fluid 220 has a circular cross-section, and the third turbulent fluid 230 also has a pentagonal cross-section. The first turbulent fluids 210 and the third turbulent fluids 230 are arranged at intervals along the first and second directions, respectively. The first turbulent fluids 210 and the third turbulent fluids 230 are staggered along the flow channel, with one tip of each first turbulent fluid 210 facing the inlet 111 and one tip of each third turbulent fluid 230 facing away from the outlet 112. The second turbulent fluids 220 are arranged at intervals along the first direction. With this arrangement, the flow resistance in the inlet section A and the outlet section C is basically the same, both forming strong turbulence, while the flow resistance in the confluence section B is relatively small.

[0077] In another example, such as Figure 3 As shown, the first turbulent fluid 210 has a pentagonal cross-section, the second turbulent fluid 220 has a circular cross-section, and the third turbulent fluid 230 also has a pentagonal cross-section. The first turbulent fluids 210 and the third turbulent fluids 230 are arranged alternately along the first and second directions, respectively. The first turbulent fluids 210 are staggered along the flow channel, while the third turbulent fluids 230 are arranged sequentially along the flow channel. One tip of each first turbulent fluid 210 faces the inlet 111, and one tip of each third turbulent fluid 230 faces away from the outlet 112. The second turbulent fluids 220 are arranged alternately along the first direction. With this arrangement, the flow resistance in the outlet section C is less than that in the inlet section A, resulting in stronger turbulence in the inlet section A, while the flow velocity can be appropriately increased in the confluence section B and the outlet section C.

[0078] In another example, as shown in Figure 4 the cross section of the first turbulence body 210 is pentagonal, the cross section of the second turbulence body 220 is circular, and the cross section of the third turbulence body 230 is drop-shaped, each first turbulence body 210 and each third turbulence body 230 are arranged in the first direction and the second direction respectively, each first turbulence body 210 and each third turbulence body 230 are arranged in front of and behind the direction of the flow channel, and one pointed end of each first turbulence body 210 faces the liquid inlet 111, and the pointed end of each third turbulence body 230 faces the liquid outlet 112, and each second turbulence body 220 is arranged in the first direction. In this way, the flow resistance in the outlet section C is slightly smaller than that in the inlet section A, a stronger turbulent flow is formed in the inlet section A, and the turbulent flow in the outlet section C is weaker, and the flow speed in the confluence section B and the outlet section C can be appropriately accelerated.

[0079] It should be noted that the cross-sectional shape and arrangement form of the first turbulence body 210, the second turbulence body 220 and the third turbulence body 230 are determined according to the actual heat exchange requirement, and the specific combination form is not limited in the embodiment.

[0080] In some embodiments, the cross section of the turbulence body 200 is one or more of circular, trapezoidal, pentagonal, hexagonal and drop-shaped.

[0081] That is, as shown in Figures 2 to 5 the cross section of the first turbulence body 210, the second turbulence body 220 and the third turbulence body 230 can be circular or trapezoidal or pentagonal or hexagonal or drop-shaped, which can be selected according to actual requirements. By controlling the radius, side length and spacing of adjacent turbulence bodies 200, the ideal parameters can be quickly determined and simulated, and the design and production efficiency of the liquid cooling plate is greatly improved.

[0082] Further, in the embodiment, at least part of the cross section of the turbulence body 200 is pentagonal, and one pointed end of the turbulence body 200 faces away from the direction of the flow channel.

[0083] Specifically, as shown in Figure 2 the pointed end is used to divide the cooling liquid, reduce the flow resistance, and the back end is easy to form a stronger turbulent flow, and the heat exchange effect is ideal.

[0084] In some embodiments, the barrier 300 divides the flow channel into two inlet sections A, one confluence section B and one outlet section C in sequence, and the two inlet sections A are located on the two sides of the outlet section C.

[0085] The direction of the flow channel in the inlet section A and the outlet section C is opposite, and the direction of the flow channel in the inlet section and the outlet section intersects with the direction of the flow channel in the confluence section.

[0086] Specifically, as shown in Figure 2 the barrier 300 is roughly in a U-shaped structure, the two outer sides of the U-shaped barrier 300 are the inlet section A, the liquid inlet 111 is located at the outer side of the bottom of the U-shaped structure, the inner side of the U-shaped barrier 300 is the outlet section C, the liquid outlet 112 is located at the inner side of the bottom of the U-shaped structure, and the confluence section B is located at the opening of the U-shaped structure. In this way, the heat exchange is more balanced, and the structure is more compact.

[0087] In some embodiments, the plate body 100 includes a first plate body 101 and a second plate body 102, and each turbulence body 200 is located on one side of the first plate body 101 facing the second plate body 102.

[0088] The side of the second plate body 102 facing the first plate body 101 has a groove, and the second plate body 102 is spliced with the first plate body 101 to form a containing cavity 110, and each turbulence body 200 abuts against the second plate body 102.

[0089] Specifically, as shown in Figure 1 , Figure 2 each turbulence body 200 is located on the first plate body 101 and can be integrally pressure cast, which is convenient for production and processing and has good product consistency. The second plate body 102 is spliced with the first plate body 101, and the two are sealed by welding or bonding on the side, so that the first plate body 101 and the groove form a containing cavity 110.

[0090] It should be noted that the barrier 300 can also be located on the first plate body 101 and integrally pressure cast.

[0091] Moreover, one end of each turbulence body 200 away from the first plate body 101 abuts against the second plate body 102. In this way, by supporting between the first plate body 101 and the second plate body 102 through each turbulence body 200, the overall strength of the plate body 100 can be enhanced and is not easy to be crushed.

[0092] Further, the present embodiment also includes at least two connectors 400, the liquid inlet 111 and the liquid outlet 112 are located on the first plate body 101 or the second plate body 102, and the two connectors 400 are respectively inserted into the liquid inlet 111 and the liquid outlet 112.

[0093] Exemplarily, as shown in Figure 1 the liquid inlet 111 and the liquid outlet 112 are both located on the first plate body 101, and the two connectors 400 are respectively inserted into the liquid inlet 111 and the liquid outlet 112 and are fixed by welding.

[0094] Of course, the liquid inlet 111 and the liquid outlet 112 can also be located on the second plate body 102, and the present embodiment does not make too many limitations on this.

[0095] Further, in the embodiment, the liquid inlet 111 and the liquid outlet 112 are located on the same side. In this way, the joints and pipelines can be arranged in a concentrated manner, and the two can be arranged on the same side of the first plate body 101 or on the same side of the second plate body 102.

[0096] Further, in the embodiment, the plate body 100 further comprises at least one positioning portion 120, which is used for positioning the battery module 10.

[0097] For example, as shown in the figure, the positioning portion 120 is a positioning hole. One or more positioning holes are arranged at the middle position of the plate body 100, so as to be connected with the beam on the battery module 10. Figure 1

[0098] Of course, the positioning portion 120 can also be replaced by other types of positioning structures. The specific type, number, and position of the positioning portion 120 can be determined according to actual needs, and the embodiment does not make too many limitations.

[0099] Secondly, the embodiment of the application further provides a battery pack, which comprises a shell, at least one battery module 10, and the liquid cooling plate provided by any of the above embodiments. The battery module 10 is arranged in the shell, and one side of the plate body 100 of the liquid cooling plate is in contact with one side of the battery module 10.

[0100] The structure of the liquid cooling plate has been described in detail in the above embodiments, and will not be described again.

[0101] Specifically, the shell has an installation cavity inside, which is used for accommodating the battery module 10 and the liquid cooling plate. The at least one battery module 10 is arranged in the installation cavity, and one side of the plate body 100 of the liquid cooling plate is in contact with one side of the battery module 10. In addition, heat-conducting glue can be coated between the plate body 100 and the battery module 10, and the battery pack can be packaged.

[0102] The battery pack provided by the embodiment of the application is configured with a liquid cooling plate. The liquid cooling plate comprises a plate body 100 and a plurality of turbulence bodies 200. The installation cavity 110 is arranged in the plate body 100, and the liquid inlet 111 and the liquid outlet 112 are arranged on the plate body 100 and are in communication with the installation cavity 110. The cooling liquid flows into or out of the installation cavity 110 and forms a flow channel in the installation cavity 110 along the direction from the liquid inlet 111 to the liquid outlet 112. The plurality of turbulence bodies 200 are arranged in the installation cavity 110 at intervals. The turbulence bodies 200 close to the liquid inlet 111 are arranged in front of and behind each other along the direction of the flow channel. When the cooling liquid flows through the gap between the adjacent turbulence bodies 200, the turbulence intensity is increased, so as to improve the heat exchange capacity, thereby ensuring the use performance of the battery.

[0103] ​Further, in the embodiment, the number of the battery modules 10 is at least two, and the plate body 100 is located between the two battery modules 10 and contacts the two battery modules 10 respectively.

[0104] That is, as shown in the figure, the two battery modules 10 exchange heat through a liquid cooling plate, and the two battery modules 10 abut on the two large faces of the plate body 100 respectively, forming a double-layer battery module 10 structure, and the integration degree is higher. Figure 6

[0105] In a third aspect, the embodiments of the present application further provide a power utilization device, which comprises a device body, and the device body is provided with the battery pack provided in any of the above embodiments. The power utilization device can include a new energy vehicle, an energy storage device, etc.

[0106] It can be understood that, by arranging the above battery pack, the power utilization device provided in the embodiments of the present application comprises a liquid cooling plate, the liquid cooling plate comprises a plate body 100 and a plurality of turbulence bodies 200, a containing cavity 110 is arranged in the plate body 100, and a liquid inlet 111 and a liquid outlet 112 are arranged on the plate body 100 and communicate with the containing cavity 110, so that the cooling liquid flows in or out and forms a flow channel in the containing cavity 110 along the direction from the liquid inlet 111 to the liquid outlet 112, and the turbulence bodies 200 are arranged in the containing cavity 110 at intervals along the direction of the flow channel, and the turbulence bodies 200 close to the liquid inlet 111 are arranged in front of and behind each other, so that the turbulence intensity of the cooling liquid flowing through the gap between adjacent turbulence bodies 200 is increased, and the heat exchange capacity is improved, thereby ensuring the use performance of the battery.

[0107] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0108] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings and that various modifications and changes can be effected therein by those skilled in the art without departing from the scope of the application. The scope of the application should be limited only by the appended claims.​

Claims

1. A liquid-cooled plate, characterized in that, The plate body (100) has a containing cavity (110) therein, and a liquid inlet (111) and a liquid outlet (112) are formed on the plate body (100) and communicate with the containing cavity (110); a flow channel is formed in the containing cavity (110) along the direction from the liquid inlet (111) to the liquid outlet (112); Each of the turbulence bodies (200) is arranged in the containing cavity (110) and is arranged in a staggered manner along the direction of the flow channel.

2. The liquid cold plate of claim 1, wherein, A barrier body (300) is arranged in the containing cavity (110) and divides the flow channel into at least an inlet section, a flow converging section and an outlet section in sequence; The inlet section and the outlet section communicate with each other through the flow converging section, the side of the inlet section away from the flow converging section communicates with the liquid inlet (111), and the side of the outlet section away from the flow converging section communicates with the liquid outlet (112).

3. The liquid cold plate of claim 2, wherein, The turbulence bodies (200) include first turbulence bodies (210), second turbulence bodies (220) and third turbulence bodies (230), a plurality of the first turbulence bodies (210) are arranged in the inlet section; A plurality of the second turbulence bodies (220) are arranged in the flow converging section, and a plurality of the third turbulence bodies (230) are arranged in the outlet section.

4. The liquid cold plate of claim 3, wherein, Each of the first turbulence bodies (210) is arranged in a staggered manner along the direction of the flow channel. The first direction intersects the second direction, the direction of the flow channel in the inlet section is consistent with the second direction, the direction of the flow channel in the flow converging section is consistent with or opposite to the first direction, and the direction of the flow channel in the outlet section is opposite to the second direction.

5. The liquid cold plate of claim 4, wherein, Each of the second turbulence bodies (220) is arranged in the first direction.

6. The liquid cold plate of claim 4, wherein, Each of the third turbulence bodies (230) is arranged in a staggered manner along the direction of the flow channel. Alternatively, each of the third turbulence bodies (230) is arranged in a staggered manner along the direction of the flow channel.

7. The liquid cold plate of claim 1, wherein, The cross section of the turbulence body (200) is one or more of a circle, a trapezoid, a pentagon, a hexagon and a water drop shape.

8. The liquid cold plate of claim 7, wherein, At least part of the cross section of the turbulence body (200) is the pentagon, and one pointed end of the turbulence body (200) faces away from the direction of the flow channel.

9. The liquid cold plate of claim 2, wherein, The barrier body (300) divides the flow channel into two inlet sections, one flow converging section and one outlet section in sequence, and the two inlet sections are respectively arranged on the two sides of the outlet section. The directions of the flow channel in the inlet section and the outlet section are opposite, and the directions of the flow channel in the inlet section and the outlet section intersect with the direction of the flow channel in the flow converging section.

10. The liquid cold plate of any of claims 1-9, wherein, The plate body (100) comprises a first plate body (101) and a second plate body (102), and each of the spoilers (200) is located on a side of the first plate body (101) facing the second plate body (102); A side of the second plate body (102) facing the first plate body (101) is provided with a groove, and the second plate body (102) and the first plate body (101) are spliced to form the accommodating cavity (110), and each of the spoilers (200) abuts against the second plate body (102).

11. The liquid cold plate of claim 10, wherein, Further comprising at least two connectors (400), the liquid inlet (111) and the liquid outlet (112) are located on the first plate body (101) or the second plate body (102), and the two connectors (400) are respectively inserted in the liquid inlet (111) and the liquid outlet (112).

12. The liquid cold plate of claim 11, wherein, The liquid inlet (111) and the liquid outlet (112) are located on the same side.

13. The liquid cold plate of any of claims 1 to 9, wherein, Further comprising at least one positioning part (120) on the plate body (100), and the positioning part (120) is used for positioning with the battery module (10).

14. A battery pack, characterized by Comprise a shell, at least one battery module (10) and the liquid cooling plate as claimed in any one of claims 1 to 13, the battery module (10) is arranged in the shell, and one side of the plate body (100) in the liquid cooling plate is in contact with one side of the battery module (10).

15. The battery pack of claim 14, wherein, The number of the battery module (10) is at least two, and the plate body (100) is located between the two battery modules (10) and is in contact with the two battery modules (10) respectively.

16. An electrical device, characterized by Comprise a device body, and the device body is provided with the battery pack as claimed in claim 14 or 15.

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