Battery shell, battery, battery pack and electric equipment
By setting protective parts at the corners of the battery case, the damage caused by collision between the battery case and the edges and corners of the battery core is solved, and the reliability and safety of the battery are improved.
Patent Information
- Application Number
- CN202420006985.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-02
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-01-02
AI Technical Summary
During the transfer and installation of the battery, the corners of the battery case may easily collide with the corners of the battery core, resulting in damage, or the installation tool will collide with the corners of the housing, causing damage to the internal core, causing damage to the battery.
Design a battery case, by setting protective parts at the corners of the accommodating cavity, fill the gap between the edges and corners of the battery core and the edges of the housing, avoid direct collision, and use flexible protective parts and polypropylene or polyterephthalene. Ethylene dicarboxylate material improves protection effect.
It effectively avoids collision between the edges and corners of the battery core and the edges of the housing, improves the reliability of the battery, prevents damage and damage, and enhances the stability and safety of the battery.
Smart Images
Figure CN222355245U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of battery technology, and specifically relates to a battery shell, a battery, a battery pack and an electrical device. Background Art
[0002] With the development of science and technology, new energy electrical equipment has been widely used, bringing great convenience to people's lives. In the use of new energy equipment, a battery shell is used to contain the battery core and electrolyte and protect the battery.
[0003] In the prior art, the pole core is usually directly installed into the punched hole of the battery shell for packaging. There is usually a gap between the punched hole and the pole core. During the transportation and installation of the battery, the corners of the aluminum punched hole can easily collide with the corners of the pole core, causing damage to the battery shell, or the tooling for installing the battery collides with the corners of the punched hole, causing damage to the internal corners of the pole core, thereby damaging the battery. Utility Model Content
[0004] The present application aims to provide a battery case, a battery, a battery pack and an electrical device to solve the problem that during the transportation and installation of existing batteries, the corners of the battery case are easily collided with the corners of the battery core, causing damage to the aluminum-plastic film, or the tooling tools used to install the battery collide with the corners of the pit and cause damage to the corners of the internal core, thereby causing damage to the battery.
[0005] In order to solve the above technical problems, this application is implemented as follows:
[0006] In a first aspect, the present application discloses a battery shell, comprising: a shell and a protective member; the shell is provided with a accommodating cavity, the accommodating cavity is used to accommodate a battery pole core; the accommodating cavity has a corner position, the protective member is connected to the corner position, and the protective member is used to abut against the battery pole core to fix the battery pole core.
[0007] Optionally, there are multiple corner positions and multiple protective members, and one protective member is connected to one corner position.
[0008] Optionally, the protective member is a flexible protective member.
[0009] Optionally, the material of the flexible protective element includes one of polypropylene material and polyethylene terephthalate material.
[0010] Optionally, the protective member is bonded to the corner position.
[0011] Optionally, the shell includes: a first shell and a second shell connected to each other, the first shell is provided with a first accommodating cavity; the second shell is provided with a second accommodating cavity on a side close to the first shell, the second accommodating cavity and the first accommodating cavity are enclosed to form the accommodating cavity; the protective piece is provided at the corner position of at least one of the first accommodating cavity and the second accommodating cavity.
[0012] Optionally, the first shell and the second shell are heat-sealed together.
[0013] Optionally, the corner positions are set to be rounded structures.
[0014] Optionally, the shell is made of aluminum-plastic film.
[0015] In a second aspect, the present application further discloses a battery, comprising a battery core and any one of the battery shells described above; the battery core is disposed in the battery shell.
[0016] Optionally, the battery shell includes a shell, the shell is provided with a accommodating cavity, the accommodating cavity has a corner position, and the corner position is set as a first rounded structure; the battery pole core has a second rounded structure, and the second rounded structure is set corresponding to the first rounded structure.
[0017] In a third aspect, the present application further discloses a battery pack, which includes a plurality of the aforementioned batteries and a tray, wherein the plurality of batteries are arranged in the tray.
[0018] In a fourth aspect, the present application further discloses an electrical device, which includes the battery pack described above.
[0019] In an embodiment of the present application, a battery shell is provided, in which protective parts are arranged at the corners of the accommodating cavity to fill the gap between the corners of the battery pole core and the corners of the battery shell accommodating cavity. During the transportation and installation process, the provision of the protective parts prevents the corners of the battery pole core from directly colliding with the corners of the accommodating cavity, and also prevents the tooling for installing the battery from colliding with the corners of the battery pole core through the corners of the accommodating cavity. The present application provides a battery shell to solve the technical problem that during the transportation and installation of the battery, the corners of the accommodating cavity are prone to collide with the corners of the pole core, causing damage to the battery shell, or the tooling for installing the battery collides with the corners of the battery shell accommodating cavity, causing damage to the corners of the internal pole core, thereby causing damage to the battery, thereby improving the reliability of the battery.
[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0022] Figure 1 is a schematic diagram of a battery case described in the present application;
[0023] Figure 2 is a schematic diagram of the corner positions and protective elements described in this application;
[0024] Figure 3 It is a schematic diagram of the first shell, the second shell and the battery core described in this application.
[0025] Figure numerals: 1, shell; 11, accommodating cavity; 12, corner position; 13, first shell; 14, second shell; 2, protective part; 3, battery core. DETAILED DESCRIPTION
[0026] The embodiments of the utility model will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0027] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this utility model, unless otherwise specified, "multiple" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.
[0028] In the description of the present invention, it should be understood that 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] The embodiments of the present application provide at least one of a battery case, a battery, a battery pack and an electrical device. The embodiments of the present application may not limit the specific type of the electrical device.
[0031] In the prior art, the battery core is usually directly installed into the pit of the battery shell for packaging. There is usually a gap between the pit and the core to accommodate the electrolyte. When the battery is transported and installed, the corners of the pit can easily collide with the corners of the core, causing damage to the battery shell, or the tooling for installing the battery can collide with the corners of the pit, causing damage to the internal corners of the core, thereby damaging the battery.
[0032] Reference Figure 1 , Figure 2 and Figure 3 , shows a schematic diagram of a battery shell described in the present application, wherein the battery shell may at least include: a shell 1 and a protective member 2; a housing cavity 11 is provided on the shell 1, and the housing cavity 11 is used to accommodate a battery pole core 3; wherein the housing cavity 11 has a corner position 12, and the protective member 2 is connected to the corner position 12, and the battery pole core 3 is fixed by the protective member 2 abutting against the battery pole core 3.
[0033] In an embodiment of the present application, a battery shell is provided, in which a protective member 2 is arranged at a corner position 12 in a receiving cavity 11 on the shell 1 to fill the gap between the corner of the battery pole core 3 and the corner position 12 in the receiving cavity 11. During the transportation and installation process, the provision of the protective member 2 prevents the corner of the battery pole core 3 from directly colliding with the corner position 12 of the receiving cavity 11, and also prevents the tooling for installing the battery from colliding with the corner of the battery pole core 3 through the shell 1.
[0034] Specifically, the shell 1 described in the present application can be selected to be made of aluminum-plastic film material, and a receiving cavity 11 is punched out on the aluminum-plastic film by a forming mold, and then the protective member 2 is installed at the corner position of the receiving cavity 11. In application, the battery pole core 3 is installed in the receiving cavity 11, and the corners of the battery pole core 3 are abutted against the protective member 2, and the gap between the corners of the battery pole core 3 and the corner position 12 in the receiving cavity 11 is filled by the protective member 2, and the battery pole core 3 is fixed at the same time. In the process of installing or transporting the battery using the battery shell provided by the present application, since the corners of the battery pole core 3 are abutted against the protective member 2, the tooling tool is prevented from colliding with the corner position 12 of the receiving cavity 11 and damaging the corner of the battery pole core 3, causing damage to the battery pole core 3; at the same time, the corners of the battery pole core 3 are generally easy to produce burrs, etc., and the setting of the protective member 2 prevents the corners of the battery pole core 3 from colliding with the corner position 12 of the receiving cavity 11, causing damage to the battery shell.
[0035] The present application provides a battery shell to solve the technical problem that during the transportation and installation of the battery, the corner positions 12 of the accommodating cavity 11 on the shell 1 are easily collided with the corners of the battery core 3, causing damage to the shell 1, or the tooling used to install the battery collides with the corner positions 12 of the accommodating cavity 11, causing damage to the corners of the battery core 3, thereby causing damage to the battery, thereby improving the reliability of the battery.
[0036] Optionally, there are multiple corner positions 12 and protective members 2 described in the present application, and one protective member 2 is connected to one corner position 12 .
[0037] In the embodiment of the present application, a plurality of corner positions 12 are provided in the accommodating cavity 11, and a protective member 2 is connected to each corner position 12. Specifically, the accommodating cavity 11 can be set to a rectangular shape, and there are four corner positions 12 in the accommodating cavity 11 to accommodate the common rectangular sheet-shaped battery core 3. The four corners of the battery core 3 are fixed by four protective members 3, thereby avoiding the technical problem that during the transportation or installation of the battery, the corner positions 12 of the accommodating cavity 11 on the shell 1 collide with the corners of the battery core 3, thereby causing damage to the shell 1, or the tooling tools used to install the battery collide with the corner positions 12 of the accommodating cavity 11, thereby causing damage to the corners of the battery core 3, thereby causing damage to the battery.
[0038] It should be noted that those skilled in the art can select the specific form of the accommodating cavity 11, the corner positions 12 and the number of protective members 2 according to actual production and use requirements, and no specific limitation is made in the present application.
[0039] Optionally, the protective member 2 described in the present application is a flexible protective member.
[0040] In an embodiment of the present application, the protective member 2 is configured as a flexible protective member. The flexible protective member has a certain deformation ability. During the transportation or installation of the battery, when the tooling used to install the battery collides with the corner position 12 of the accommodating cavity 11, it plays a buffering role, reduces the risk of damaging the corners of the battery core 3, and improves the reliability of the battery.
[0041] Optionally, the material of the flexible protective element described in the present application includes at least one of polypropylene material and polyethylene terephthalate material.
[0042] In the embodiment of the present application, the material of the flexible protective component is set to at least one of polypropylene and polyethylene terephthalate, utilizing the excellent properties of these two materials such as good electrical insulation, high heat resistance, resistance to electrolyte corrosion, acid and alkali resistance, corrosion resistance, and impact resistance. During the manufacture of the battery, after the electrolyte is injected into the gap between the battery pole core 3 and the shell 1, the battery pole core can still be effectively protected.
[0043] Optionally, the protective member 2 described in the present application is bonded to the corner position 12 .
[0044] In an embodiment of the present application, the protective member 2 is bonded to the corner position 12. Specifically, the protective member 2 can be fixed to the corner position 12 by spot gluing using a polymer glue, wherein the molecular chain composition of the polymer glue contains one or more polymers such as an urethane group, an isocyanate group, an organic cyanate group, and a polyester containing a terminal hydroxyl group, so that the polymer glue has electrolyte resistance, so that after the protective member 2 is fixed to the corner position 12 by spot gluing, it will not be corroded and fall off by the electrolyte in the gap between the battery pole 3 and the shell 1.
[0045] Optionally, the shell 1 described in the present application includes: a first shell 13 and a second shell 14 connected to each other, the first shell 13 is provided with a first accommodating cavity; the second shell 14 is provided with a second accommodating cavity on a side close to the first shell 13, and the second accommodating cavity and the first accommodating cavity are enclosed to form an accommodating cavity 11; a protective member 2 is provided at a corner position 12 of at least one of the first accommodating cavity and the second accommodating cavity.
[0046] In the embodiment of the present application, the shell 1 includes: a first shell 13 and a second shell 14 connected to each other, the first shell 13 is provided with a first accommodating cavity; the second shell 14 is provided with a second accommodating cavity, and the first accommodating cavity and the second accommodating cavity are enclosed to form an accommodating cavity 11, which further accommodates the battery core 3. During the installation process, the first shell 13 and the second shell 14 can be partially overlapped with each other for packaging to improve the packaging effect.
[0047] Optionally, the first shell 13 and the second shell 14 described in the present application are heat-sealed and connected.
[0048] In the embodiment of the present application, the first shell 13 and the second shell 14 are heat-sealed and connected. Since the shell 1 can generally be made of an aluminum-plastic film, the contact portion of the first shell 13 and the second shell 14 is heated to melt the surface layer of the aluminum-plastic film and then bond together, thereby forming an effective packaging effect and preventing leakage of the electrolyte.
[0049] Optionally, the corner position 12 described in the present application is set to a rounded structure.
[0050] In the embodiment of the present application, the corner position 12 is set to a rounded structure, that is, a rounded mold is used for punching the accommodating cavity 11, so that the corner position 12 of the punched accommodating cavity 11 is rounded, avoiding the problem that the sharp corner position 12 is more easily damaged and reducing the risk of scratches on the carrier during transportation and installation.
[0051] Optionally, the housing 1 described in the present application is made of aluminum-plastic film.
[0052] In the embodiment of the present application, the shell 1 can be made of aluminum-plastic film material, and the plasticity, ductility and corrosion resistance of the aluminum-plastic film material make the battery shell easier to produce and use. Specifically, the battery shell provided in the present application is used for packaging soft-pack batteries.
[0053] On the other hand, the present application also provides a battery, which includes any one of the battery shells described above and a battery core 3, wherein the battery core 3 is disposed in the battery shell.
[0054] It should be noted that in the embodiment of the present application, the specific structure of the battery shell is the same as the structure of the battery shell in the above embodiments, and its beneficial effects are similar, which will not be described in detail here. In the embodiment of the present application, the reliability of the battery is enhanced.
[0055] Optionally, the battery core 3 described in the present application has a second rounded corner structure, wherein the second rounded corner structure is arranged corresponding to the first rounded corner structure.
[0056] In the embodiment of the present application, the battery pole core 3 has a second rounded structure corresponding to the first rounded structure in the accommodating cavity 11, so that the battery pole core 3 is easier to install into the battery shell and reduces the risk of injury to the installation operator.
[0057] On the other hand, the present application also provides a battery pack, which may at least include a tray and a plurality of the aforementioned batteries, wherein the plurality of the aforementioned batteries are arranged in the tray.
[0058] It should be noted that in the embodiment of the present application, the specific structure of the battery is the same as the structure of the battery in the above embodiment, and its beneficial effects are similar, which will not be described in detail here. In the embodiment of the present application, since the reliability of the battery is enhanced, the reliability of the battery pack is further enhanced.
[0059] On the other hand, the present application also provides an electrical device, which includes the battery pack described above.
[0060] It should be noted that in the embodiments of the present application, an electric device is provided, which improves the user experience of the electric device by improving the reliability of the battery. Specifically, the electric device may include a vehicle, an energy storage device, a smart wearable device, and the like.
[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0062] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A battery shell, characterized in that: The battery case comprises: a shell (1) and a protective member (2); The housing (1) is provided with a receiving cavity (11), and the receiving cavity (11) is used to receive the battery core (3); The accommodating cavity (11) has a corner position (12), the protective member (2) is connected to the corner position (12), and the protective member (2) is used to abut against the battery pole core (3) to fix the battery pole core (3).
2. The battery case according to claim 1, characterized in that: There are a plurality of corner positions (12) and a plurality of protective members (2), and one protective member (2) is connected to one corner position (12).
3. The battery case according to claim 1, characterized in that: The protective member (2) is a flexible protective member.
4. The battery case according to claim 3, characterized in that: The material of the flexible protective member includes at least one of polypropylene material and polyethylene terephthalate material.
5. The battery case according to claim 1, characterized in that: The protective member (2) is bonded to the corner position (12).
6. The battery case according to claim 1, characterized in that: The housing (1) comprises: a first housing (13) and a second housing (14) connected to each other, the first housing (13) being provided with a first accommodating cavity; the second housing (14) being provided with a second accommodating cavity on a side close to the first housing (13), the second accommodating cavity and the first accommodating cavity being enclosed to form the accommodating cavity; The protective element (2) is provided at at least one of the corner positions (12) of the first accommodating cavity and the second accommodating cavity.
7. The battery case according to claim 6, characterized in that: The first shell (13) and the second shell (14) are heat-sealed and connected.
8. The battery case according to claim 1, characterized in that: The corner position (12) is configured as a first rounded corner structure.
9. The battery case according to any one of claims 1 to 8, characterized in that: The shell (1) is made of aluminum-plastic film.
10. A battery, characterized in that: The battery comprises a battery core (3) and a battery shell according to any one of claims 1 to 9; the battery core (3) is arranged in the battery shell.
11. The battery according to claim 10, characterized in that The battery case comprises a shell (1), the shell (1) is provided with a receiving cavity (11), the receiving cavity (11) has a corner position (12), and the corner position (12) is set as a first rounded corner structure; The battery pole core (3) has a second rounded corner structure, and the second rounded corner structure is arranged corresponding to the first rounded corner structure.
12. A battery pack, characterized in that: The invention comprises a plurality of batteries according to any one of claims 10 to 11 and a tray, wherein the plurality of batteries are arranged in the tray.
13. An electrical equipment, characterized in that: The electrical equipment comprises the battery pack described in claim 12.