Liquid cooling assembly, battery pack and electric equipment

Abstract

The utility model provides a liquid cooling assembly, a battery pack and electric equipment. The liquid cooling assembly comprises a vapor chamber, a liquid cooling pipe and a runner plate. The runner plate comprises two body parts oppositely arranged in the first direction and a connecting part connected between the two body parts, one part of the first surface of each body part is attached to the temperature uniforming plate, the other part of each first surface is sunken in the direction away from the temperature uniforming plate to form a runner groove, and the inner wall of each runner groove and the surface of the temperature uniforming plate form a first channel; wherein the liquid cooling pipe is connected between the two body parts, the liquid cooling pipe is communicated with the first channel, the liquid cooling pipe is attached to the connecting part, and the liquid cooling pipe and the connecting part are attached to the uniform temperature plate. And the side of the liquid cooling pipe is attached to the uniform temperature plate through the connecting part, so that the heat transfer path is increased. And the heat conduction efficiency between the liquid cooling pipe and the vapor chamber is improved, so that the cooling performance of the liquid cooling assembly is improved. And the arrangement of the runner plate also improves the overall structural strength of the liquid cooling assembly.

Description

Technical Field

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

[0002] The battery pack is very sensitive to temperature. During use, the temperature of the battery will gradually increase. When the temperature is too high, it will cause thermal runaway of the battery. Therefore, cooling is crucial.

[0003] Battery packs usually use liquid cooling for heat dissipation. The existing liquid cooling heat dissipation structure is to set collectors at both ends of the liquid cooling tube, and one surface of the liquid cooling tube is in contact with the battery cell for heat exchange. Among them, when there are multiple liquid cooling tubes, adjacent liquid cooling tubes are spaced apart, and the thermal conductivity of air is low. Therefore, the temperature of the contact surface between the battery cell and the liquid cooling tube is uneven, which has an adverse effect on the performance of the battery cell.

[0004] Therefore, it is necessary to provide a liquid cooling assembly, a battery pack and an electrical device to at least partially solve the above problems. Utility Model Content

[0005] 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.

[0006] In order to at least partially solve the above problems, the first aspect of the present invention provides a liquid cooling assembly, comprising:

[0007] Temperature balancing plate;

[0008] A liquid cooling pipe, wherein the liquid cooling pipe is arranged on the temperature averaging plate;

[0009] A flow channel plate, the flow channel plate comprising two main body parts arranged opposite to each other along a first direction, and a connecting part connected between the two main body parts, a part of the main body part is in contact with the temperature averaging plate, and another part of the main body part is recessed toward a third direction to form a flow channel groove, and an inner wall of the flow channel groove forms a channel with the surface of the temperature averaging plate; wherein,

[0010] The liquid cooling pipe is connected between the two main bodies, the liquid cooling pipe is communicated with the channel, the liquid cooling pipe is fitted with the connecting part, and the liquid cooling pipe and the connecting part are respectively fitted with the temperature equalizing plate.

[0011] According to the liquid cooling assembly provided by the first aspect of the utility model, the side of the liquid cooling tube is fitted with the temperature equalizing plate through the connection part, which increases the heat transfer path and improves the heat conduction efficiency between the liquid cooling tube and the temperature equalizing plate, thereby improving the cooling performance of the liquid cooling assembly. Since the liquid cooling tube and the flow channel plate are both fitted with the temperature equalizing plate, a more uniform temperature distribution is achieved to avoid local overheating. The provision of the flow channel plate also improves the overall structural strength of the liquid cooling assembly.

[0012] Optionally, a plurality of the liquid cooling tubes extend along the first direction and are spaced apart along the second direction;

[0013] The flow channel grooves connect the adjacent liquid cooling tubes, and a plurality of the flow channel grooves are alternately arranged at both ends of the liquid cooling tube along the first direction.

[0014] Optionally, the plurality of connection portions extend along the first direction and are spaced apart along the second direction.

[0015] Optionally, the liquid cooling tube is a harmonica tube.

[0016] Optionally, the flow channel plate and the temperature equalizing plate are fixedly connected by welding and sealing; and / or

[0017] The flow channel plate and the liquid cooling pipe are fixedly connected by welding and sealing.

[0018] Optionally, in the direction in which the flow channel plate is away from the temperature equalizing plate, the connecting portion is not lower than the liquid cooling tube.

[0019] A second aspect of the utility model provides a battery pack, comprising a battery and a tray for accommodating a plurality of batteries, and the above-mentioned liquid cooling assembly, wherein the liquid cooling assembly is arranged between the battery and the tray.

[0020] According to the battery pack of the second aspect of the utility model, the use of the above-mentioned liquid cooling assembly can effectively improve the heat dissipation effect of the battery assembly, reduce the battery operating temperature, extend the battery life, and help improve the safety performance of the battery pack. Through more effective thermal management, the aging rate of the battery at high temperature can be reduced, the charging and discharging efficiency can be improved, and the safety hazards caused by overheating can be reduced, thereby improving the performance and reliability of the entire battery pack.

[0021] Optionally, the temperature homogenizing plate has a second surface and a third surface disposed opposite to each other;

[0022] The third surface faces the battery, and the liquid cooling tube and the flow channel plate are disposed on the third surface.

[0023] Optionally, a joint is further included, wherein the joint is arranged on the temperature homogenizing plate and the joint is in fluid communication with the channel.

[0024] A third aspect of the present invention provides an electrical device, comprising the above-mentioned battery pack.

[0025] According to the power-consuming device provided in the third aspect of the utility model, the power-consuming device can be widely used in various scenarios requiring battery power supply, such as electric vehicles, energy storage systems, communication base stations, etc. By using the battery pack of the utility model, the operating stability and reliability of the device can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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,

[0027] Figure 1 This is an exploded schematic diagram of a liquid cooling assembly according to a preferred embodiment of the present invention;

[0028] Figure 2 for Figure 1 An enlarged schematic diagram of part A in FIG.

[0029] Figure 3 is a three-dimensional schematic diagram of the flow channel plate;

[0030] Figure 4 for Figure 3 An enlarged schematic diagram of part B in FIG.

[0031] Figure 5 is a three-dimensional schematic diagram of a battery pack;

[0032] Figure 6 for Figure 5 An enlarged schematic diagram of part C in FIG. ; and

[0033] Figure 7 Schematic diagram of the internal structure of the battery pack.

[0034] Description of Reference Numerals

[0035] 10: Temperature balancing board

[0036] 20: Runner plate

[0037] 21: Body part

[0038] 22: Connection

[0039] 23: Runner groove

[0040] 30: Liquid cooling tube

[0041] 40: Connector

[0042] D1: First direction

[0043] D2: Second direction

[0044] D3: Third direction DETAILED DESCRIPTION

[0045] 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.

[0046] 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".

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] Reference Figure 1-Figure 4The utility model provides a liquid cooling component, including a temperature equalizing plate 10, a liquid cooling tube 30, and a flow channel plate 20. The liquid cooling tube 30 is arranged on the temperature equalizing plate 10. The flow channel plate 20 includes two main bodies 21 arranged opposite to each other along a first direction, and a connecting portion 22 connected between the two main bodies 21, a part of the main body 21 is sealed and fitted with the temperature equalizing plate 10, and another part of the main body 21 is recessed along a third direction D3 in a direction away from the temperature equalizing plate 10 to form a flow channel groove 23, and the inner wall of the flow channel groove 23 forms a channel with the surface of the temperature equalizing plate 10. The liquid cooling tube 30 is connected between the two main bodies 21, the liquid cooling tube 30 is connected to the channel of the flow channel groove 23, the liquid cooling tube 30 is fitted with the connecting portion 22, and the liquid cooling tube 30 and the connecting portion 20 are respectively fitted with the temperature equalizing plate 10. In the present utility model, both ends of the liquid cooling tube 30 are connected to the main body 21 of the flow channel plate 20, and the liquid cooling tube 30 is fitted with the connecting portion 22 of the flow channel plate 20. Optionally, the side wall of the liquid cooling tube 30 is fitted with the connecting portion 22. As a heat-conducting material, the flow channel plate 20 has a small thermal resistance and high thermal conductivity, forming a good heat conduction path, thereby increasing the heat exchange area of ​​the liquid cooling tube 30, and increasing the heat conduction efficiency between the liquid cooling tube 30 and the temperature equalizing plate 10, thereby improving the cooling performance of the liquid cooling component. Since the liquid cooling tube 30 and the flow channel plate 20 are both fitted with the temperature equalizing plate 10, a more uniform temperature distribution is achieved to avoid local overheating. In the present utility model, the temperature equalizing plate 10 and the flow channel plate 20 together form a channel for the reflux of the liquid cooling medium, which has a simple structure and high heat exchange efficiency. In the present utility model, the flow channel plate 20 is not only used to form an effective cooling channel, but also can provide structural protection for the liquid cooling tube 30. The liquid cooling assembly provided in this embodiment has high heat exchange efficiency, high structural strength, simple structure, and is easy to manufacture and install.

[0052] In the present invention, the temperature plate 10, the liquid cooling tube 30 and the flow channel plate 20 are made of aluminum profiles. Aluminum profiles have good thermal conductivity, light weight and good processing performance. The liquid cooling medium can be water or other liquids.

[0053] Optionally, the shape of the liquid cooling tube 30 can be flexibly selected according to specific design requirements, and can be any shape such as a straight line, an arc, a meander structure, etc., and there is no limitation on this.

[0054] In some embodiments of the present invention, a plurality of liquid cooling tubes 30 extend along a first direction D1 and are spaced apart along a second direction D2. The flow channel grooves 23 connect adjacent liquid cooling tubes 30, and a plurality of flow channel grooves 23 are alternately arranged at both ends of the liquid cooling tube 30 along the first direction D1. This design allows for the maximum arrangement of more liquid cooling tubes 30 in a limited space, effectively utilizing the available space, and can be flexibly configured according to heat dissipation requirements. It can be understood that the channel in the flow channel groove 23 is connected to the liquid cooling tube 30, and the cooling medium is guided to circulate in the liquid cooling tube 30 through the alternately arranged flow channel grooves 23.

[0055] like Figure 3 As shown, in some embodiments of the present invention, a plurality of connecting parts 20 extend along the first direction D1 and are spaced apart along the second direction D2. Optionally, the connecting parts 20 are spaced apart from the liquid cooling tube 30. The contact area between the connecting parts 20 and the liquid cooling tube 30 is large, thereby improving the heat exchange efficiency on the side of the liquid cooling tube 30 and reducing energy loss.

[0056] like Figure 2 As shown, in some embodiments of the present invention, the liquid cooling tube 30 is a harmonica tube. Through the arrangement of the harmonica tube, the fluid flow path is optimized and the structural strength is improved.

[0057] In some embodiments of the present invention, the flow channel plate 20 is fixedly connected to the temperature balancing plate 10 by welding and sealing. The flow channel plate 20 is sealed to the temperature balancing plate 10 so that the channel is relatively sealed.

[0058] In some embodiments of the utility model, the flow channel plate 20 and the liquid cooling tube 30 are fixedly connected by welding and sealing. Specifically, the main body 21 is welded and sealed to the liquid cooling tube 30, and the main body 21 is sealed to the liquid cooling tube 30, so that the channel and the liquid cooling tube 30 are relatively sealed, effectively preventing the liquid cooling medium from leaking from between the flow channel plate 20 and the liquid cooling tube 30, ensuring that the cooling medium circulates stably in the system, avoiding energy loss and system failure. Optionally, the connecting portion 22 is welded to the liquid cooling tube 30, and the connecting portion 22 is tightly welded to the liquid cooling tube 30, so that the connection between the connecting portion 22 and the liquid cooling tube 30 is secure.

[0059] In some embodiments of the present invention, in the direction in which the flow channel plate 20 is away from the temperature equalizing plate 10, the connection portion 22 is not lower than the liquid cooling tube 30. Thus, the liquid cooling tube 30 does not protrude from the connection portion 22, and the connection portion 22 can provide effective protection for the liquid cooling tube 30 while enhancing the heat exchange of the liquid cooling tube 30.

[0060] In some embodiments of the present invention, the flow channel plate 20 has a first surface and a fourth surface disposed opposite to each other along the third direction D3, the first surface is used to face the temperature balancing plate 10, and the fourth surface is at least partially flush, that is, the main body 21 and the surface of the connecting portion 22 facing away from the temperature balancing plate 10 are flush, so as to facilitate connection to an external structure. Exemplarily, on the side facing away from the temperature balancing plate 10, the outer wall of the connecting portion 22 is flush with the outer wall of the flow channel groove 23, and the outer walls of the groove bottoms of the connecting portion 22 and the flow channel groove 23 both protrude from the main body 21.

[0061] Reference Figure 5-Figure 7The utility model also provides a battery pack, including a battery and the above-mentioned liquid cooling assembly. The battery pack adopts the above-mentioned liquid cooling assembly to effectively improve the heat dissipation effect of the battery assembly, reduce the battery operating temperature, extend the battery life, and help improve the safety performance of the battery pack. Through more effective thermal management, the aging rate of the battery at high temperature can be reduced, the charging and discharging efficiency can be improved, and the safety hazards caused by overheating can be reduced, thereby improving the performance and reliability of the entire battery pack.

[0062] The battery pack includes a battery and a tray for accommodating a plurality of batteries. The liquid cooling component is arranged between the battery and the tray.

[0063] The temperature plate 10 has a second surface and a third surface that are arranged opposite to each other along the third direction D3; the second surface faces the battery, and the liquid cooling pipe 30 and the flow channel plate 20 are arranged on the third surface. The second surface of the temperature plate 10 is a smooth and continuous plane. The battery is bonded to the second surface by a thermally conductive adhesive, which simplifies the installation process, and can perform good cooling and heat dissipation, ensuring that the entire liquid cooling assembly will not loosen or shift during operation.

[0064] It also includes a connector 40, which is arranged on the temperature plate 10 and is connected to the channel fluid. Optionally, a connection hole is opened in the temperature plate 10, and the connector 40 passes through the connection hole or connects to the connection hole to communicate with the channel fluid. As a fluid connection component, the connector 40 can easily connect the liquid cooling component to the external cooling system. Integrating the connector 40 on the temperature plate 10 helps to reduce the need for additional pipelines, making the entire liquid cooling system more compact and neat.

[0065] The utility model also provides an electric device, including the above-mentioned battery pack. The electric device can be widely used in various scenarios requiring battery power supply, such as electric vehicles, energy storage systems, communication base stations, etc. By using the battery pack of the utility model, the operating stability and reliability of the device can be effectively improved.

[0066] 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.

[0067] 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 component, characterized in that: include: Temperature balancing plate; A liquid cooling pipe, wherein the liquid cooling pipe is arranged on the temperature averaging plate; A flow channel plate, the flow channel plate comprising two main body parts arranged opposite to each other along a first direction, and a connecting part connected between the two main body parts, a part of the main body part is in contact with the temperature averaging plate, another part of the main body part is recessed toward a third direction to form a flow channel groove, and an inner wall of the flow channel groove forms a channel with the surface of the temperature averaging plate; wherein, The liquid cooling pipe is connected between the two main bodies, the liquid cooling pipe is communicated with the channel, the liquid cooling pipe is fitted with the connecting part, and the liquid cooling pipe and the connecting part are respectively fitted with the temperature equalizing plate.

2. The liquid cooling assembly according to claim 1, characterized in that: A plurality of the liquid cooling tubes extend along the first direction and are spaced apart along the second direction; The flow channel grooves connect the adjacent liquid cooling tubes, and a plurality of the flow channel grooves are alternately arranged at both ends of the liquid cooling tube along the first direction.

3. The liquid cooling assembly according to claim 1 or 2, characterized in that: The plurality of connecting portions extend along the first direction and are spaced apart along the second direction; The connecting portion and the liquid cooling tube are spaced apart from each other along the second direction.

4. The liquid cooling assembly according to claim 1 or 2, characterized in that: The liquid cooling tube is a harmonica tube.

5. The liquid cooling assembly according to claim 1, characterized in that: The flow channel plate and the temperature equalizing plate are fixedly connected by welding and sealing; and / or The flow channel plate and the liquid cooling pipe are fixedly connected by welding and sealing.

6. The liquid cooling assembly according to claim 1, characterized in that: In the direction in which the flow channel plate is away from the temperature equalizing plate, the connecting portion is not lower than the liquid cooling tube.

7. A battery pack, characterized in that: The invention comprises a battery and a tray for accommodating a plurality of batteries, and a liquid cooling assembly according to any one of claims 1 to 6, wherein the liquid cooling assembly is arranged between the battery and the tray.

8. The battery pack according to claim 7, characterized in that: The temperature homogenizing plate has a second surface and a third surface which are arranged opposite to each other; The third surface faces the battery, and the liquid cooling tube and the flow channel plate are disposed on the third surface.

9. The battery pack according to claim 7, characterized in that: It also includes a joint, which is arranged on the temperature homogenizing plate and is communicated with the channel.

10. An electrical device, characterized in that: Comprising a battery pack according to any one of claims 7-9.

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