Battery pack and electric equipment

By designing a structure with an open housing and a removable panel in the battery pack, the electrode terminal assembly can be directly extended to the outside through the mounting hole, solving the problems of complexity and long-term maintenance of existing battery packs, and achieving more Simplified disassembly and assembly and maintenance process.

CN222355341UActive Publication Date: 2025-01-14BYD CO LTD
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Patent Information

Application Number
CN202323453406.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-15
Publication Date
2025-01-14
Estimated Expiration
2033-12-15

AI Technical Summary

Technical Problem

During repair, existing battery packs need to be removed first from the connection between the electrode terminal assembly and the panel, and then disassemble the panel, resulting in complex operation and long maintenance time.

Method used

A battery pack is designed with an open housing cavity in which the panel is removably mounted to close the opening and allows the electrode terminal assembly part to be passed through the first mounting hole to extend to the outside, simplifying the electrode terminal assembly and the panel Disassembly and assembly process.

Benefits of technology

Reduces the release steps of electrode terminal assembly and panel, simplifies operational flow and shortens maintenance time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a battery pack. The battery pack comprises a shell, a panel and an electrode terminal assembly, a containing cavity with an opening is defined by the shell. The panel is detachably mounted to the shell to close the opening, and the panel is provided with a first mounting hole. The electrode terminal assembly is arranged in the containing cavity, and in the state that the panel is installed on the shell, the electrode terminal assembly at least partially penetrates through the first installation hole so as to extend out of the containing cavity. When the panel is disassembled and assembled, the step of removing the electrode terminal assembly from the panel is reduced, and the panel can be directly disassembled, so that the operation process is simplified, and the maintenance time is shortened.
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Description

Technical Field

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

[0002] Battery packs are usually equipped with electrode terminals to connect the battery to external devices or systems to achieve power output and charge and discharge operations. Therefore, the electrode terminals need to extend outside the battery pack to easily access the circuit to achieve power input and output. In order to fix the electrode terminal assembly, the electrode terminal assembly will be directly connected to the panel. Therefore, when repairing the inside of the battery pack, it is necessary to first remove the connection between the electrode terminal assembly and the panel, and then remove the panel.

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

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

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

[0006] A housing, wherein the housing defines a receiving cavity having an opening;

[0007] a panel detachably mounted to the housing to close the opening, the panel having a first mounting hole; and

[0008] An electrode terminal assembly is disposed in the accommodating cavity, and when the panel is mounted to the shell, the electrode terminal assembly at least partially passes through the first mounting hole to extend outside the accommodating cavity.

[0009] According to the battery pack of the first aspect of the utility model, when disassembling and assembling the panel, the steps of releasing the electrode terminal assembly from the panel are reduced, and the panel can be directly disassembled, which not only simplifies the operation process but also shortens the maintenance time.

[0010] Optionally, the electrode terminal assembly includes:

[0011] Electrode terminal;

[0012] A connecting member, through which the electrode terminal is connected to the housing.

[0013] Optionally, the connecting member includes a first connecting plate and a second connecting plate which are connected to each other and arranged at an angle, the first connecting plate is connected to the shell, and the second connecting plate is connected to the electrode terminal.

[0014] Optionally, the second connecting plate has a second mounting hole;

[0015] The electrode terminal assembly further includes a connecting portion, which is sleeved outside the electrode terminal and connected to the second mounting hole.

[0016] Optionally, the connecting portion and / or the second connecting plate are made of insulating material.

[0017] Optionally, the electrode terminal assembly further includes a support portion, one end of which is connected to the first connecting plate, and the other end of which is connected to the electrode terminal.

[0018] Optionally, the support portion and / or the first connecting plate are made of insulating material.

[0019] Optionally, the electrode terminal includes a positive electrode terminal and a negative electrode terminal.

[0020] Optionally, the positive electrode terminal and the negative electrode terminal are connected to the same connecting member, and an insulating member is provided between the positive electrode terminal and the negative electrode terminal.

[0021] Optionally, the insulating member is a plate-shaped structure, and the insulating member is connected to the connecting member.

[0022] Optionally, the housing has a mounting plate at the opening, the mounting plate is parallel to the panel, and the panel is connected to the mounting plate.

[0023] A second aspect of the present invention provides an electrical device, comprising the above-mentioned battery pack.

[0024] According to the electric equipment of the second aspect of the utility model, the disassembly and assembly structure of the battery pack is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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,

[0026] Figure 1 This is a schematic diagram of an explosion of a battery pack according to a preferred embodiment of the present utility model;

[0027] Figure 2 for Figure 1 An enlarged schematic diagram of part A in FIG.

[0028] Figure 3 A schematic diagram of the explosion of the battery pack from another perspective;

[0029] Figure 4 for Figure 3 An enlarged schematic diagram of part B in FIG.

[0030] Figure 5 It is a three-dimensional schematic diagram of the electrode terminal assembly.

[0031] Description of Reference Numerals

[0032] 100: Shell

[0033] 101: Opening

[0034] 102: Accommodation cavity

[0035] 110: Mounting plate

[0036] 200: Panel

[0037] 201: First mounting hole

[0038] 300: Electrode terminal assembly

[0039] 310: Electrode terminal

[0040] 320: Connectors

[0041] 321: First connecting plate

[0042] 322: Second connecting plate

[0043] 323: Second mounting hole

[0044] 330: Connection

[0045] 340: Support

[0046] 350: Insulation

[0047] 360: Protective cover DETAILED DESCRIPTION

[0048] 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.

[0049] 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".

[0050] 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.

[0051] In this document, “equal”, “same”, etc. are not strictly limited in mathematical and / or geometric senses, but also include errors that can be understood by those skilled in the art and allowed by manufacturing or use.

[0052] 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.

[0053] 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.

[0054] Reference Figure 1-Figure 4 The utility model provides a battery pack. The battery pack includes a housing 100 and a panel 200. The housing 100 defines a receiving cavity 102 having an opening 101. A plurality of batteries (not shown in the figure) are arranged in the receiving cavity 102.

[0055] The housing 100 includes a bottom shell, two side panels arranged opposite to each other, a rear side panel connected between the two side panels, and a top cover arranged opposite to the bottom shell and connected to the side panels and the rear side panels, respectively. The side panels and the rear side panels are connected to the peripheral edges of the bottom shell, and the side panels and the rear side panels are connected to the peripheral edges of the top cover. The bottom shell, the two side panels, the rear side panels and the top cover enclose a receiving cavity 102 with an opening 101 at one end. Optionally, the top cover is connected to the side panels and the rear side panels by bolts, which can facilitate disassembly and assembly. Of course, in other embodiments, riveting, welding, clamping, etc. can also be used to fix them together.

[0056] The opening 101 is arranged in front of the shell 100, and the panel 200 is installed to the shell 100 to close the end of the opening 101. The closure here refers to the sealed connection between the shell 100 and the panel 200, that is, the panel 200 is sealed with the bottom shell, the top cover, and the two side panels respectively. The sealed connection can prevent external liquid and water vapor from entering the battery pack, thereby improving the safety performance of the battery pack. The panel 200 is detachably mounted to the shell 100. Exemplarily, the face cover and the shell 100 are connected by bolts, which can be easily disassembled and assembled. Of course, in other embodiments, it can also be fixed together by riveting, welding, clamping, etc.

[0057] In some embodiments of the present invention, the housing 100 has a mounting plate 110 at the opening 101, the mounting plate 110 is parallel to the panel 200, and the panel 200 is connected to the mounting plate 110. Optionally, the panel 200 is connected to the mounting plate 110 by bolts. The mounting point of the panel 200 is set on the front side of the battery, and when the panel 200 needs to be removed, the screws can be directly removed without removing the top cover first and then removing the panel 200 from bottom to top.

[0058] The battery pack is also provided with an electrode terminal assembly 300. The electrode terminal assembly 300 is disposed in the accommodating cavity 102. The electrode terminal assembly 300 is electrically connected to the battery in the accommodating cavity 102 to connect the battery to an external device or system to achieve power output and charge and discharge operations. Therefore, the electrode terminal assembly 300 needs to extend outside the battery pack to conveniently access the circuit to achieve the input and output of power. In the prior art, in order to fix the electrode terminal assembly 300, the electrode terminal assembly 300 is directly connected to the panel 200. Therefore, when repairing the inside of the battery pack, it is necessary to first remove the connection between the electrode terminal assembly 300 and the panel 200, and then disassemble the panel 200.

[0059] In the present utility model, the electrode terminal assembly 300 is directly installed in the accommodating cavity 102, for example, installed in the bottom shell. The electrode terminal assembly 300 at least partially passes through the first mounting hole 201 to extend outside the accommodating cavity 102. In this embodiment, the panel 200 is plug-connected with the motor terminal. During maintenance, the steps of releasing the electrode terminal assembly 300 from the panel 200 are reduced, and the panel 200 can be directly disassembled, which not only simplifies the operation process, but also shortens the maintenance time. Exemplarily, the electrode terminal assembly 300 is connected to the housing 100 by means of magnetic fit, snap-on, or threaded connection.

[0060] Reference Figure 5 In some embodiments of the present invention, the electrode terminal assembly 300 includes an electrode terminal 310 and a connector 320 .

[0061] The connector 320 includes a first connector plate 321 and a second connector plate 322 connected to each other and arranged at an angle. Optionally, the first connector plate 321 is perpendicular to the second connector plate 322. By vertically arranging, it is convenient to connect the connector 320 with other structures, improve the compactness of the overall structure, and ensure the rigidity and stability of the entire electrode terminal assembly 300. The first connector plate 321 is connected to the housing 100, and the second connector plate 322 is connected to the electrode terminal 310. As a result, the electrode terminal 310 can be arranged in the middle of the opening 101 end of the housing 100, which is convenient for connecting the electrode terminal 310 with the cover.

[0062] In the present invention, the electrode terminal assembly 300 includes an electrode terminal 310, a connection portion 330 sleeved outside the electrode terminal 310, and a protective cover 360. The connection portion 330 is disposed in the middle of the electrode terminal 310, the protective cover 360 is disposed at the end of the electrode terminal 310, and the protective cover 360 is at least partially located outside the accommodating cavity 102.

[0063] In some embodiments of the present invention, the material of the protective cover 360 is an insulating material, such as plastic or rubber. The end of the electrode is a high voltage area. If it is exposed, it is easy to contact with other metal objects, thereby causing a short circuit. The protective cover can isolate the external structure so that it is electrically connected to the electrode terminal 310 through a specific position, reducing the risk of short circuit caused by accidental contact.

[0064] In some embodiments of the present invention, the second connecting plate 322 has 323. The connecting portion 330 is sleeved outside the electrode terminal 310 and connected to 323. That is, the connecting portion 330 is arranged between the outer peripheral surface of the electronic terminal and the inner wall surface of 323. Thus, the connection between the electrode terminal 310 and the second connecting plate 322 is achieved.

[0065] Based on the above embodiment, at least one of the connecting portion 330 and the second connecting plate 322 is made of insulating material, such as plastic or rubber. Insulating material can effectively prevent leakage of current in areas where it should not flow, thus helping to ensure the normal operation and safety of the device.

[0066] In some embodiments of the present invention, the electrode terminal assembly 300 further includes a support portion 340, one end of which is connected to the first connection plate 321, and the other end of which is connected to the electrode terminal 310. Optionally, the support portion 340 is a columnar structure, which is supported between the electrode terminal 310 and the first connection plate 321. Exemplarily, the support portion 340 uses a pressure riveted nut column, and the two ends of the support portion 340 are respectively connected to the electrode terminal 310 and the first connection plate 321 by bolts. The support portion 340 can also be a combination of an insulating column and an inlaid nut, and the inlaid nut is threadedly connected to the insulating column.

[0067] Based on the above embodiment, at least one of the support portion 340 and the first connecting plate 321 is made of insulating material, such as plastic or rubber. Insulating material can effectively prevent leakage of current in areas where it should not flow, thus helping to ensure the normal operation and safety of the device.

[0068] In the present invention, the electrode terminal 310 includes a positive electrode terminal 310 and a negative electrode terminal 310 .

[0069] In some embodiments of the present invention, the positive electrode terminal 310 and the negative electrode terminal 310 are connected to the same connector 320. Optionally, the positive electrode terminal 310 and the negative electrode terminal 310 are arranged side by side. Connecting the positive and negative electrode terminals 310 to the same connector 320 can simplify the connection structure of the battery system, reduce the number of parts, reduce system complexity, and save costs. Arranging the positive and negative electrode terminals 310 side by side can save space, especially when space is limited. This design can arrange the layout of the battery assembly more flexibly.

[0070] In some embodiments of the present invention, an insulating member 350 is provided between the positive electrode terminal 310 and the negative electrode terminal 310. The insulating member 350 is a plate-shaped structure. Exemplarily, the insulating member 350 is an insulating gasket 350. The insulating gasket 350 is connected to the first connecting plate 321 and the second connecting plate 322, respectively. The insulating gasket 350 can effectively isolate the positive and negative electrode terminals 310, prevent safety problems caused by accidental contact or short circuit, and improve the safety of the entire system.

[0071] In some embodiments of the present invention, the insulating gasket 350 is provided with a plurality of through holes to facilitate heat dissipation.

[0072] 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.

[0073] 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 battery pack, characterized in that: include: A housing, wherein the housing defines a receiving cavity having an opening; a panel detachably mounted to the housing to close the opening, the panel having a first mounting hole; and An electrode terminal assembly is disposed in the accommodating cavity, and when the panel is mounted to the shell, the electrode terminal assembly at least partially passes through the first mounting hole to extend outside the accommodating cavity.

2. The battery pack according to claim 1, characterized in that: The electrode terminal assembly comprises: Electrode terminal; A connecting member, through which the electrode terminal is connected to the housing.

3. The battery pack according to claim 2, characterized in that: The connecting member includes a first connecting plate and a second connecting plate which are connected to each other and arranged at an angle, the first connecting plate is connected to the shell, and the second connecting plate is connected to the electrode terminal.

4. The battery pack according to claim 3, characterized in that: The second connecting plate has a second mounting hole; The electrode terminal assembly further includes a connecting portion, which is sleeved outside the electrode terminal and connected to the second mounting hole.

5. The battery pack according to claim 4, characterized in that: The connecting portion and / or the second connecting plate are made of insulating material.

6. The battery pack according to claim 3, characterized in that: The electrode terminal assembly further includes a support portion having one end connected to the first connection plate and the other end connected to the electrode terminal.

7. The battery pack according to claim 6, characterized in that: The support portion and / or the first connecting plate are made of insulating material.

8. The battery pack according to any one of claims 2 to 7, characterized in that: The electrode terminals include a positive electrode terminal and a negative electrode terminal.

9. The battery pack according to claim 8, characterized in that: The positive electrode terminal and the negative electrode terminal are connected to the same connecting member, and an insulating member is arranged between the positive electrode terminal and the negative electrode terminal.

10. The battery pack according to claim 9, characterized in that: The insulating member is a plate-shaped structure, and the insulating member is connected to the connecting member.

11. The battery pack according to claim 9, characterized in that: The housing has a mounting plate at the opening, the mounting plate is parallel to the panel, and the panel is connected to the mounting plate.

12. An electrical device, characterized in that: Comprising a battery pack according to any one of claims 1-11.