Battery

Abstract

The embodiment of the utility model provides a battery, and relates to the field of electric equipment. The battery comprises a first chip, a first liquid cooling plate and a first heat conduction pad, the first bar is opposite to the first liquid cooling plate. The first heat conduction pad is located between the first bar piece and the first liquid cooling plate, the first face of the first heat conduction pad makes contact with the first bar piece and covers the first bar piece, and the second face of the first heat conduction pad makes contact with the first liquid cooling plate. According to the battery, the heat conduction pad is arranged between the sheet and the liquid cooling plate, so that stable heat transfer can be carried out, the liquid cooling plate cannot be in contact with the sheet, and the safety of the battery is improved while the battery is cooled.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of electrical equipment, and specifically to a battery. Background Art

[0002] With the continuous development of electrical devices such as electric vehicles and high-performance computing equipment, higher requirements are being placed on battery safety and stability. To prevent battery damage or performance degradation caused by heat generation during discharge, heat exchange components are generally used to cool the battery.

[0003] Batteries are usually equipped with a liquid cooling assembly. Specifically, a liquid cooling plate is installed adjacent to the battery cells in the battery pack. The liquid cooling plate is provided with a channel for the flow of coolant. As the coolant flows in the channel, it continuously exchanges heat with the battery cells, thereby cooling the battery.

[0004] However, in existing batteries, the liquid cooling plate is very close to the conductive components in the battery. This can cause contact with the conductive components, creating a short circuit risk and inadequate battery safety. Therefore, how to improve battery safety while cooling the battery has become a technical challenge that needs to be addressed. Utility Model Content

[0005] In view of the above problems, an embodiment of the present application provides a battery, in which a clamped thermal pad is provided between the bar and the liquid cooling plate, and the thermal pad covers the bar. The thermal pad can not only stably transfer heat, but also protect the bar, so that the liquid cooling plate will not contact the bar, thereby avoiding short circuit and improving the safety of the battery.

[0006] According to one aspect of an embodiment of the present application, a battery is provided, comprising a first bar, a first liquid cooling plate, and a first thermal pad. The first bar is opposed to the first liquid cooling plate, the first thermal pad is located between the first bar and the first liquid cooling plate, a first surface of the first thermal pad contacts and covers the first bar, and a second surface of the first thermal pad contacts the first liquid cooling plate.

[0007] The first thermal pad is positioned between the first bar and the first liquid cooling plate, making contact with both. This ensures stable heat transfer and improves heat exchange efficiency between the first bar and the first liquid cooling plate. Furthermore, the first thermal pad covers the bar, preventing contact between the liquid cooling plate and the bar, thus preventing short circuits and improving battery safety.

[0008] In an optional manner, the area of the first surface of the first thermally conductive pad is larger than the contact area between the first bar and the first surface of the first thermally conductive pad.

[0009] When the area of the first surface of the first thermal pad is larger than the contact area between the first bar and the first surface of the first thermal pad, even if there are assembly errors between the components, the first thermal pad can completely cover the exposed part of the first bar, thereby ensuring the covering effect of the first thermal pad on the first bar and reducing the difficulty of assembling the first thermal pad.

[0010] In an optional manner, the contact area between the first liquid cooling plate and the second surface of the first thermal pad is greater than the contact area between the first bar and the first surface of the first thermal pad.

[0011] This approach can make the heat exchange area between the first thermal pad and the first liquid cooling plate larger than the heat exchange area between the first thermal pad and the first bar, thereby improving the heat dissipation efficiency.

[0012] In an optional embodiment, the first thermal pad is a flexible pad, and the distance between the first pad and the first liquid cooling plate is less than the thickness of the first thermal pad when it is not compressed, so that the first thermal pad is arranged between the first pad and the first liquid cooling plate in a compressed state.

[0013] In this method, the first thermal pad is compressed and placed between the first bar and the first liquid cooling plate, ensuring that the first surface of the first thermal pad is always in reliable contact with the first bar, and the second surface of the first thermal pad is always in reliable contact with the first liquid cooling plate, thereby ensuring effective heat transfer. Furthermore, the first thermal pad is clamped between the first bar and the first liquid cooling plate, further securing the first thermal pad.

[0014] In an optional manner, the first thermal pad is a silicone pad with uniform thickness.

[0015] The silicone pad with uniform thickness is easy to process and enables the first thermal pad to reliably contact the first bar and the first liquid cooling plate respectively, thereby ensuring the stability of heat transfer and reliability during long-term use.

[0016] In an optional manner, the first liquid cooling plate is made of plastic.

[0017] The first liquid cooling plate made of plastic is an insulator, which prevents a short circuit between the first liquid cooling plate and conductive components such as the first bar.

[0018] In one optional embodiment, the battery further includes a second bar, a second liquid cooling plate, and a second thermal pad, wherein the second bar is opposite the second liquid cooling plate. The second thermal pad is located between the second bar and the second liquid cooling plate, wherein a first surface of the second thermal pad contacts and covers the second bar, and a second surface of the second thermal pad contacts the second liquid cooling plate.

[0019] The second heat sink uses a second thermal pad, distinct from the first, and a second liquid cooling plate, distinct from the first, to dissipate heat, resulting in higher heat dissipation efficiency. Furthermore, the second thermal pad covers the second heat sink, separating it from the second liquid cooling plate and preventing it from contacting other components and causing a short circuit.

[0020] In an optional embodiment, the battery further includes a second bar, the second bar facing the first liquid cooling plate, a first thermal pad located between the second bar and the first liquid cooling plate, and a first surface of the first thermal pad in contact with and covering the second bar.

[0021] The second bar dissipates heat through the first thermal pad and the first liquid cooling plate. The first thermal pad transfers heat from both the first and second bars to the first liquid cooling plate for heat exchange, preventing the first and second bars from contacting other components and causing a short circuit. Furthermore, this embodiment requires fewer components and is simple to install.

[0022] In an optional embodiment, the battery also includes a second bar and a second liquid cooling plate, the second bar is opposite to the second liquid cooling plate, the first thermal pad is located between the second bar and the second liquid cooling plate, and the first surface of the first thermal pad is in contact with and will cover the second bar, and the second surface of the first thermal pad is in contact with the second liquid cooling plate.

[0023] In this approach, the first thermal pad transfers heat from the first and second bars simultaneously to the first and second liquid cooling plates, preventing them from contacting other components and causing a short circuit. Furthermore, heat is dissipated by the two liquid cooling plates, resulting in improved heat dissipation efficiency. The first and second bars share the same thermal pad, simplifying installation.

[0024] In an optional embodiment, the battery also includes a second bar and a second thermal pad, the second bar is opposite to the first liquid cooling plate, the second thermal pad is located between the second bar and the first liquid cooling plate, and the first surface of the second thermal pad is in contact with and covers the second bar, and the second surface of the second thermal pad is in contact with the first liquid cooling plate.

[0025] The second and first bars share the same first liquid cooling plate, simplifying installation. Heat is transferred between the second bar and the first liquid cooling plate via a second thermal pad, distinct from the first. This improves heat transfer and increases heat dissipation efficiency.

[0026] In the battery provided by the embodiments of the present application, a first thermal pad is disposed between the first bar and the first liquid cooling plate. The first surface of the first thermal pad contacts and covers the first bar, while the second surface of the first thermal pad contacts the first liquid cooling plate. This allows the first thermal pad to contact both the first bar and the first liquid cooling plate simultaneously, ensuring stable heat transfer and improving the heat exchange efficiency between the first bar and the first liquid cooling plate. Furthermore, the first thermal pad covers the bar, preventing the liquid cooling plate from contacting the bar, thus preventing short circuits and improving battery safety.

[0027] The above description is only an overview of the technical solutions of the embodiments of the present application. In order to more clearly understand the technical means of the embodiments of the present application, they can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 A schematic diagram of an explosion of a battery provided in an embodiment of the present application.

[0030] Figure 2 A partial cross-sectional view of the location of the first tab of a battery provided in an embodiment of the present application.

[0031] Figure 3 This is a structural diagram of a battery according to an embodiment of the present application having both a first tab and a second tab.

[0032] Figure 4 A partial cross-sectional view of the positions of the first and second tabs of a battery provided in an embodiment of the present application.

[0033] Figure 5 This is a schematic diagram of the overall structure of a battery involved in an embodiment of the present application, with a first liquid cooling plate and a second liquid cooling plate installed on the battery.

[0034] Reference numerals:

[0035] 10. First bar; 20. First liquid cooling plate; 30. First thermal pad; 40. Battery cell; 50. Second bar; 60. Second liquid cooling plate; 70. Second thermal pad. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0038] The terms "comprises", "comprising" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the presence of a plurality.

[0039] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it necessarily refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] The term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0041] The directional words appearing in the following description are all directions shown in the drawings and do not limit the specific structure of the battery of this application. For example, in the description of this application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing this application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting this application.

[0042] In addition, the expressions indicating directions such as the X direction, Y direction, and Z direction used to illustrate the operation and construction of the various components of the battery of this embodiment are not absolute but relative, and although these indications are appropriate when the various components of the battery are in the positions shown in the figures, when these positions are changed, these directions should be interpreted differently to correspond to the changes.

[0043] In addition, the terms "first", "second", etc. in the description and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order, and may explicitly or implicitly include one or more such features.

[0044] In the description of this application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two (including two).

[0045] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, "connected" or "connected" in a mechanical structure can refer to a physical connection. For example, a physical connection can be a fixed connection, such as a fixed connection via a fixing member, such as a screw, bolt, or other fixing member. A physical connection can also be a detachable connection, such as a mutual snap-fit connection. A physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. In addition to referring to a physical connection, "connected" or "connected" in a circuit structure can also refer to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate element, as long as the circuit is interconnected. It can also refer to internal communication between two elements. A signal connection can refer to a signal connection through a circuit or a signal connection through a media medium, such as radio waves. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0046] The battery provided in this application can be used to drive electrical equipment, which may be vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, electric tools, energy storage equipment, amusement equipment, elevators and lifting equipment, etc.

[0047] The battery can be a battery pack or a battery module. When the above-mentioned battery is a battery pack, the battery pack specifically includes a battery management system (BMS) and a plurality of battery cells. The plurality of battery cells can be electrically connected in series, in parallel, or in a mixture of series and parallel, and communicated with the battery management system to form a battery pack. The above-mentioned battery management system controls and monitors the working status of each battery cell. In addition, the plurality of battery cells can also be connected in series and / or in parallel first, and form a battery module with the module management system, and then the plurality of battery modules are electrically connected in series, in parallel, or in a mixture of series and parallel, and together with the battery management system form a battery pack.

[0048] The multiple battery cells in a battery pack or battery module can be mounted on a supporting structure such as a box, frame, or bracket. Electrical connections can be made between the individual battery cells and between the battery cells and the battery management system via busbars, such as tabs. The battery cells can be lithium-ion, sodium-ion, or magnesium-ion batteries, and their outer contours can be cylindrical, flat, rectangular, or other shapes, but are not limited to these.

[0049] The battery provided in this application is specifically as follows Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of an explosion of a battery provided in an embodiment of the present application. Figure 2 This is a partial cross-sectional view of the first bar of a battery provided in an embodiment of the present application. The battery includes a first bar 10, a first liquid cooling plate 20, and a first thermal pad 30.

[0050] The first tab 10 is used to converge the current of a single battery cell 40 or multiple battery cells 40. The first tab 10 can be fixed to the battery cell 40 by bolting, snap-fitting, bonding, welding, or other methods. Furthermore, the first tab 10 is electrically connected to the electrode terminals of the battery cell 40.

[0051] The first bar 10 is made of a high-strength, highly conductive metal material, such as aluminum alloy or copper alloy, to ensure the stability of the electrical and mechanical connections. The first bar 10 is a sheet-like structure, and the specific shape can be set to square, circular, etc., without specific limitation.

[0052] The first liquid cooling plate 20 is the heat exchange part in the liquid cooling assembly. Figure 2 As shown, a channel for cooling liquid flow is provided inside the first liquid cooling plate 20. The first liquid cooling plate 20 is installed adjacent to the first bar 10 and the first bar 10 is opposite to the first liquid cooling plate 20, so that when the cooling liquid flows through the channel inside the first liquid cooling plate 20, heat is exchanged with the first bar 10.

[0053] The first liquid cooling plate 20 can be made of metal to ensure a stable structure and cooling performance. Alternatively, the first liquid cooling plate 20 can be made of plastic to insulate it and prevent contact with conductive components such as the first bar 10, which could cause a short circuit.

[0054] The first thermal pad 30 is a plate-like structure with a certain thickness, and can be configured as a circular, square, or long strip structure. Figure 2 As shown, the first thermal pad 30 is located between the first bar 10 and the first liquid cooling plate 20 , the first surface of the first thermal pad 30 contacts and covers the first bar 10 , and the second surface of the first thermal pad 30 contacts the first liquid cooling plate 20 .

[0055] The first and second surfaces of the first thermal pad 30 are oppositely spaced surfaces, meaning that when the first surface of the first thermal pad 30 is the front surface, the second surface is the back surface. The first and second surfaces of the first thermal pad 30 must simultaneously and reliably contact the first bar 10 and the first liquid cooling plate 20, respectively, so that the first thermal pad 30 is clamped between the first bar 10 and the first liquid cooling plate 20. When the battery is charging or discharging, current flows into or out of the battery cells 40 through the first bar 10, generating heat. The first thermal pad 30, located between the first bar 10 and the first liquid cooling plate 20, transfers the heat from the first bar 10 to the first liquid cooling plate 20, thereby achieving stable heat exchange. Furthermore, the battery cells 40 and the first bar 10 are adjacent and in contact with each other, allowing the heat from the battery cells 40 to be cooled by the first thermal pad 30 and the first liquid cooling plate 20.

[0056] At the same time, the first thermal pad 30 covers the first bar 10, so that the first bar 10 is completely separated from the first liquid cooling plate 20. Even if the material of the first liquid cooling plate 20 is conductive, the first liquid cooling plate 20 will never contact the first bar 10 under the action of external force or stress, and a short circuit will not occur, thereby ensuring the safety of the battery.

[0057] In this embodiment, the first bar 10 may be partially or completely exposed, and the exposed portion of the first bar 10 is covered by the first thermal pad 30, thereby separating the first bar 10 from the first liquid cooling plate 20. Figure 2 As shown, the area of the first surface is larger than the contact area between the first bar 10 and the first surface of the first thermal pad 30. Therefore, when there is an assembly error between the components, the first thermal pad 30 can completely cover the exposed part of the first bar 10, thereby ensuring the covering effect of the first thermal pad 30 on the first bar 10 and reducing the difficulty of assembling the first thermal pad 30.

[0058] The first liquid cooling plate 20 may completely cover the second surface of the first thermal pad 30, or may partially cover the second surface of the first thermal pad 30. In a further embodiment, Figure 2 As shown, the contact area between the first liquid cooling plate 20 and the second surface of the first thermal pad 30 is larger than the contact area between the first bar 10 and the first surface of the first thermal pad 30, so that the heat exchange area between the first thermal pad 30 and the first liquid cooling plate 20 is larger than the heat exchange area between the first thermal pad 30 and the first bar 10, thereby improving the heat dissipation efficiency.

[0059] In this embodiment, the first thermal pad 30 is a separate, solid structure that is not easily damaged by high temperatures. The first thermal pad 30 can be configured as a rigid pad or a flexible pad. When the first thermal pad 30 is configured as a flexible pad, the distance between the first bar 10 and the first liquid cooling plate 20 can be further reduced to a thickness less than that of the first thermal pad 30 when it is not compressed, so that the first thermal pad 30 is disposed in a compressed state between the first bar 10 and the first liquid cooling plate 20.

[0060] In this embodiment, the first thermal pad 30 is compressed and positioned between the first bar 10 and the first liquid cooling plate 20, ensuring that the first surface of the first thermal pad 30 is always in reliable contact with the first bar 10, and the second surface of the first thermal pad 30 is always in reliable contact with the first liquid cooling plate 20, thereby ensuring effective heat transfer. Furthermore, the first thermal pad 30 is clamped between the first bar 10 and the first liquid cooling plate 20, further securing the first thermal pad 30.

[0061] Furthermore, the first thermal pad 30 can be set as a flexible gasket with uniform thickness, such as a silicone pad with uniform thickness, so as to facilitate the processing of the gasket and enable the first thermal pad 30 to reliably contact the first bar 10 and the first liquid cooling plate 20 respectively, thereby ensuring the stability of heat transfer and reliability during long-term use.

[0062] In the battery of this embodiment, in addition to the above-mentioned related embodiments of the first bar 10, the battery can also be Figure 1 and Figure 3 As shown, based on the above-mentioned embodiment of the first bar 10, a second bar 50, a third bar and more bars are provided to converge more battery cells 40, wherein Figure 3 This is a structural diagram of a battery according to an embodiment of the present application having both a first tab and a second tab.

[0063] The second bar 50 is different from the first bar 10. Specifically, there is a gap between the second bar 50 and the first bar 10, that is, the second bar 50 and the first bar 10 are located at different positions to combine different battery cells.

[0064] When more bars are provided, heat can be dissipated through the first thermal pad 30 and the first liquid cooling plate 20 , or more thermal pads and liquid cooling plates can be provided.

[0065] The following takes the second bar 50 as an example to illustrate the heat dissipation method when more bars are provided.

[0066] The first heat dissipation method when the second bar 50 is provided is as follows Figure 1 and Figure 4 As shown, Figure 4 A partial cross-sectional view of the first and second tabs of a battery provided in an embodiment of the present application. The battery further includes a second tab 50, a second liquid cooling plate 60, and a second thermal pad 70. The second tab 50 faces the second liquid cooling plate 60. The second thermal pad 70 is positioned between the second tab 50 and the second liquid cooling plate 60. The first surface of the second thermal pad 70 contacts and covers the second tab 50, while the second surface of the second thermal pad 70 contacts the second liquid cooling plate 60.

[0067] The second bar 50 is similar in structure to the first bar 10. Its specific structure is similar to the above description of the first bar 10, so it will not be described in detail here. In a specific embodiment, the second bar 50 can have the same structure as the first bar 10, or it can be different in shape and size. Figure 5 As shown, it is arranged side by side with the first bar 10, wherein Figure 5 The first and second liquid cooling plates are mounted on the battery according to the embodiment of the present application. The second bars 50 can also be arranged in a staggered manner, which is not limited here.

[0068] The second liquid cooling plate 60 is similar in structure to the first liquid cooling plate 20, and its specific structural form is analogous to the relevant description of the first liquid cooling plate 20 mentioned above, so no unnecessary details will be given here. In a specific embodiment, the second liquid cooling plate 60 can have the same structure as the first liquid cooling plate 20, or it can be different in shape and size. In addition, the cooling liquid circulation channel inside the second liquid cooling plate 60 can be connected in parallel or in series with the cooling liquid circulation channel inside the first liquid cooling plate 20. The second liquid cooling plate 60 can be arranged side by side with the first liquid cooling plate 20, or it can be arranged in an interlaced manner, and the second liquid cooling plate 60 should be opposite to the second bar 50 so as to be fixedly installed adjacent to the second bar 50, and the first liquid cooling plate 20 should be opposite to the first bar 10 so as to be fixedly installed adjacent to the first bar 10.

[0069] The second thermal pad 70 is similar in structure to the first thermal pad 30. Its specific structure is similar to the description of the first thermal pad 30 above, and will not be described in detail here. In a specific embodiment, the second thermal pad 70 can have the same structure as the first thermal pad 30, or it can differ in shape and size.

[0070] In this embodiment, the second bar 50 uses a second thermal pad 70, distinct from the first thermal pad 30, and a second liquid cooling plate 60, distinct from the first liquid cooling plate 20, to dissipate heat, resulting in higher heat dissipation efficiency. Furthermore, the second thermal pad 70 covers the second bar 50, separating it from the second liquid cooling plate 60 and preventing the second bar 50 from contacting other components and causing a short circuit.

[0071] In a second heat dissipation method in which the second bar 50 is provided, the battery further includes the second bar 50. The second bar 50 is opposite the first liquid cooling plate 20, and the first thermal pad 30 is located between the second bar 50 and the first liquid cooling plate 20, with the first surface of the first thermal pad 30 contacting and covering the second bar 50.

[0072] In this embodiment, the second bar 50 dissipates heat through the first thermal pad 30 and the first liquid cooling plate 20. The first thermal pad 30 simultaneously transfers heat from the first and second bars 10, 50 to the first liquid cooling plate 20 for heat exchange, preventing the first and second bars 10, 50 from contacting other components and causing a short circuit. Furthermore, this embodiment requires fewer components and is simple to install.

[0073] In a third heat dissipation method when the second bar 50 is provided, the battery further includes the second bar 50 and a second liquid cooling plate 60, with the second bar 50 facing the second liquid cooling plate 60. The first thermal pad 30 is positioned between the second bar 50 and the second liquid cooling plate 60, with the first surface of the first thermal pad 30 contacting and covering the second bar 50, and the second surface of the first thermal pad 30 contacting the second liquid cooling plate 60.

[0074] In this embodiment, the second bar 50 dissipates heat via a second liquid cooling plate 60, which is distinct from the first liquid cooling plate 20. However, the second bar 50 and the first bar 10 share the first thermal pad 30. The first bar 10 and the second bar 50 can be arranged side by side, and the first liquid cooling plate 20 and the second liquid cooling plate 60 can also be arranged side by side. The relative orientation of the first and second liquid cooling plates 20 and 60 corresponds to the relative orientation of the first and second bar 10 and 50.

[0075] In this embodiment, the first thermal pad 30 simultaneously transfers heat from the first and second bars 10, 50 to the first and second liquid cooling plates 20, 60, preventing the first and second bars 10, 50 from contacting other components and causing a short circuit. Furthermore, the first and second bars 10, 50 dissipate heat through the two liquid cooling plates, resulting in more efficient heat dissipation. The first and second bars 10, 50 share the same first thermal pad 30, simplifying installation.

[0076] In a fourth heat dissipation method when the second bar 50 is provided, the battery further includes the second bar 50 and a second thermal pad 70, with the second bar 50 facing the first liquid cooling plate 20. The second thermal pad 70 is located between the second bar 50 and the first liquid cooling plate 20, with the first surface of the second thermal pad 70 contacting and covering the second bar 50, and the second surface of the second thermal pad 70 contacting the first liquid cooling plate 20.

[0077] In this embodiment, the second bar 50 also dissipates heat through the first liquid cooling plate 20, but a second thermal pad 70 different from the first thermal pad 30 is provided between the second bar 50 and the first liquid cooling plate 20, that is, the second thermal pad 70 separates the second bar 50 and the first liquid cooling plate 20.

[0078] In this embodiment, the second bar 50 and the first bar 10 share the first liquid cooling plate 20, simplifying installation. Heat is transferred between the second bar 50 and the first liquid cooling plate 20 via a second thermal pad 70, distinct from the first thermal pad 30. This improves heat transfer and increases heat dissipation efficiency from the second bar 50.

[0079] In summary, in the battery described in the above embodiment, the first thermal pad is disposed between the first bar and the first liquid cooling plate. The first surface of the first thermal pad contacts and covers the first bar, while the second surface of the first thermal pad contacts the first liquid cooling plate. This allows the first thermal pad to contact both the first bar and the first liquid cooling plate simultaneously, ensuring stable heat transfer and improving the heat exchange efficiency between the first bar and the first liquid cooling plate. Furthermore, the first thermal pad covers the bar, preventing the liquid cooling plate from contacting the bar, thus preventing short circuits and improving battery safety.

[0080] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of this application and to form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0081] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery, characterized in that: The battery comprises: a first bar, a first liquid cooling plate and a first thermal pad; The first bar is opposite to the first liquid cooling plate; the first thermal pad is located between the first bar and the first liquid cooling plate, the first surface of the first thermal pad contacts and covers the first bar, and the second surface of the first thermal pad contacts the first liquid cooling plate.

2. The battery according to claim 1, characterized in that An area of the first surface of the first thermal pad is larger than a contact area between the first tab and the first surface of the first thermal pad.

3. The battery according to any one of claims 1 to 2, characterized in that: A contact area between the first liquid cooling plate and the second surface of the first thermal pad is greater than a contact area between the first tab and the first surface of the first thermal pad.

4. The battery according to claim 1, characterized in that The first thermal pad is a flexible pad; the distance between the first pad and the first liquid cooling plate is less than the thickness of the first thermal pad when it is not compressed, so that the first thermal pad is arranged between the first pad and the first liquid cooling plate in a compressed state.

5. The battery according to claim 4, characterized in that The first thermal pad is a silicone pad with uniform thickness.

6. The battery according to claim 1, characterized in that The first liquid cooling plate is made of plastic.

7. The battery according to claim 1, characterized in that The battery further includes: a second bar, a second liquid cooling plate, and a second thermal pad; the second bar is opposite to the second liquid cooling plate; and there is a gap between the second bar and the first bar. The second thermal pad is located between the second bar and the second liquid cooling plate. The first surface of the second thermal pad contacts and covers the second bar, and the second surface of the second thermal pad contacts the second liquid cooling plate.

8. The battery according to claim 1, characterized in that The battery further includes: a second bar; the second bar is opposite to the first liquid cooling plate; and there is a gap between the second bar and the first bar; The first thermal pad is located between the second bar and the first liquid cooling plate, and a first surface of the first thermal pad contacts and covers the second bar.

9. The battery according to claim 1, characterized in that The battery further includes: a second bar and a second liquid cooling plate; the second bar is opposite to the second liquid cooling plate; and there is a gap between the second bar and the first bar; The first thermal pad is located between the second bar and the second liquid cooling plate, and a first surface of the first thermal pad contacts and will cover the second bar, while a second surface of the first thermal pad contacts the second liquid cooling plate.

10. The battery according to claim 1, characterized in that The battery further includes: a second bar and a second thermal pad; the second bar is opposite to the first liquid cooling plate; and there is a distance between the second bar and the first bar; The second thermal pad is located between the second bar and the first liquid cooling plate, and a first surface of the second thermal pad contacts and covers the second bar, while a second surface of the second thermal pad contacts the first liquid cooling plate.

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