Battery

Abstract

The utility model discloses a battery, which comprises a shell, a battery cover, a battery cover and a battery cover, wherein an accommodating cavity is formed in the shell; the battery cell is arranged in the accommodating cavity; the insulating part covers the side surface and the bottom surface of the battery cell and forms an integrally formed insulating shell; and the cover plate is arranged on the shell and seals the accommodating cavity. According to the battery disclosed by the utility model, the integrally formed insulating part is arranged between the battery cell and the shell, so that the insulating effect is improved, and the assembly efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery. Background Technology

[0002] In related technologies, Mylar sheets made of PP or PET material are used in conjunction with Mylar base plates. The Mylar sheets and Mylar base plates are fused and fixed together at high temperatures. Then, the composite Mylar sheets and Mylar base plates completely cover the bare battery cell, and the edges are fixed with tape. At the pocket, the Mylar is glued to the cover plastic part of the bare battery cell at high temperatures. The battery manufacturing process is complex, and it is impossible to ensure that the Mylar sheets completely cover the battery cell. Insulation failure is prone to occur at the corners of the Mylar sheets. Therefore, how to optimize the Mylar sheet structure, simplify the manufacturing process, and improve the insulation effect has become an urgent problem to be solved in this field. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a battery. The battery of this invention features an integrally formed insulating component between the cell and the casing, improving insulation performance and assembly efficiency.

[0004] The battery according to this utility model includes a housing with an internal cavity; a battery cell disposed within the cavity; an insulating member covering the sides and bottom of the battery cell and forming an integrally molded insulating shell; and a cover plate disposed within the housing and sealing the cavity.

[0005] The battery according to this utility model has an insulating component between the casing and the cell. The insulating component covers the side and bottom of the cell, isolating the cell and the casing, preventing the cell from contacting the casing and causing cell failure, thus improving battery safety. The insulating component is constructed as an integrally molded insulating shell, which simplifies the processing technology of the insulating component and improves the assembly efficiency of the cell and the insulating component.

[0006] According to some embodiments of this utility model, the insulating element is constructed as a Mylar element.

[0007] According to some embodiments of the present invention, a plurality of through holes are provided at intervals on the peripheral wall of the insulating member.

[0008] According to some embodiments of the present invention, grooves are provided at intervals on the peripheral wall of the insulating member, and the grooves are recessed toward the surface of the battery cell.

[0009] According to some embodiments of the present invention, a mating portion is formed on the cover plate, the mating portion protruding from the surface of the cover plate and adapted to be fixed with the top edge of the insulating member.

[0010] According to some embodiments of the present invention, the mating part is constructed as a plastic part.

[0011] According to some embodiments of the present invention, the cover plate has a welding edge suitable for welding with the housing.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0014] Figure 1 This is an assembly diagram of a battery according to some embodiments of the present invention;

[0015] Figure 2 This is an assembly diagram of the battery insulation components and battery cells according to some embodiments of the present invention;

[0016] Figure 3 This is an assembly diagram of the cover plate and insulating components of a battery according to some embodiments of the present invention;

[0017] Figure 4 This is a cross-sectional schematic diagram of the insulating component of a battery according to some embodiments of the present invention.

[0018] Figure label:

[0019] Battery 1;

[0020] 11. Housing 11; 111 receiving cavity; 12. Battery cell 12; 13. Insulating component;

[0021] Through hole 14; groove 15; cover plate 16; mating part 161. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In related technologies, Mylar sheets made of PP or PET material are used in conjunction with Mylar base plates. The Mylar sheets and Mylar base plates are fused and fixed together at high temperatures. Then, the composite Mylar sheets and Mylar base plates completely cover the bare battery cell, and the edges are fixed with tape. At the pocket, the Mylar is glued to the cover plastic part of the bare battery cell at high temperatures. The battery manufacturing process is complex, and it is impossible to ensure that the Mylar sheets completely cover the battery cell. Insulation failure is prone to occur at the corners of the Mylar sheets. Therefore, how to optimize the Mylar sheet structure, simplify the manufacturing process, and improve the insulation effect has become an urgent problem to be solved in this field.

[0024] The following is for reference. Figures 1-4 A battery according to an embodiment of the present invention is described.

[0025] The battery 1 according to the present invention includes a housing 11, the housing 11 having an internal cavity 111; a battery cell 12 disposed within the cavity 111; an insulating member 13 covering the sides and bottom of the battery cell 12 and forming an integral insulating shell; and a cover plate 16 disposed on the housing 11 and sealing the cavity 111.

[0026] Specifically, the casing 11 is the outer structure of the battery 1. Inside the casing 11, a receiving cavity 111 is formed to accommodate the battery cell 12. The casing 11 can be constructed as an aluminum shell. After the battery cell 12 and the insulating component 13 are assembled, the battery cell 12 and the insulating component 13 are placed together inside the casing 11. The insulating component 13 covers the sides and bottom of the battery cell 12, completely isolating the battery cell 12 from the casing 11, preventing the battery cell 12 from contacting the casing 11 and causing the battery cell 12 to fail. The insulating component 13 is constructed as an integrally formed insulating shell, which facilitates assembly with the battery cell 12. Moreover, the insulating component 13 has no gaps, which can improve the sealing effect of the battery cell 12 and prevent the battery cell 12 from contacting the casing 11. The cover plate 16 is set at the opening of the casing 11 to close the receiving cavity 111. After the battery cell 12 and the insulating component 13 are assembled, the cover plate 16 can be fixed to the opening of the insulating component 13 and then welded to the opening of the casing 11, ensuring the sealing effect of the battery cell 12 and facilitating the assembly of the cover plate 16.

[0027] According to this utility model, the battery 1 has an insulating member 13 between the casing 11 and the cell 12. The insulating member 13 covers the side and bottom of the cell 12, isolating the cell 12 from the casing 11, preventing the cell 12 from contacting the casing 11 and causing the cell 12 to fail, thus improving the safety of the battery 1. The insulating member 13 is constructed as an integrally formed insulating shell, which simplifies the processing technology of the insulating member 13 and improves the assembly efficiency of the cell 12 and the insulating member 13.

[0028] According to some embodiments of the present invention, the insulating element 13 is constructed as a Mylar element.

[0029] Specifically, the Mylar component is constructed from a polyester film or Mylar film, a high-performance insulating material. Mylar components possess high tensile and tear strength, enabling them to withstand certain external forces and impacts. Therefore, when the battery cell 12 is subjected to external pressure or collision, the Mylar component provides effective protection, preventing damage or deformation to the battery cell 12. The Mylar component is also lightweight and thin, without significantly increasing the overall weight and volume of the battery 1. Furthermore, it is easy to process and mold, allowing it to be conveniently wrapped around the sides and bottom of the battery cell 12 to form an integrally molded insulating structure. By constructing the insulating component 13 as a Mylar component, the safety and reliability of the battery 1 are further enhanced.

[0030] According to some embodiments of the present invention, a plurality of through holes 14 are provided at intervals on the peripheral wall of the insulating member 13.

[0031] Specifically, battery 1 generates a certain amount of heat during operation. If the heat cannot be dissipated in time, it may cause the performance of battery 1 to decline or even be damaged. By providing through holes 14 on the peripheral wall of the insulating component 13, the air circulation inside battery 1 can be increased, the heat dissipation efficiency can be improved, and the battery 1 can be ensured to operate at a suitable temperature. In addition, when electrolyte is injected into the casing 11, excess free electrolyte can be absorbed in the through holes 14. As the cell 12 expands and squeezes the insulating component 13, the electrolyte in the through holes 14 is continuously squeezed out and wets the cell 12, which can effectively increase the service life of battery 1.

[0032] According to some embodiments of the present invention, grooves 15 are provided at intervals on the peripheral wall of the insulating member 13, and the grooves 15 are recessed toward the surface of the battery cell 12.

[0033] Specifically, the addition of the groove 15 further increases the air circulation area inside the battery 1, which helps to dissipate the heat generated by the battery 1 during operation more effectively. The design of the groove 15 can increase the contact area between the insulating component 13 and the cell 12, thereby improving their adhesion and friction. This helps to prevent the cell 12 from moving or being damaged due to vibration or impact during the operation of the battery 1, improving the overall structural stability of the battery 1. The groove 15 can guide the electrolyte to be distributed more evenly on the surface of the cell 12, thereby improving the charging and discharging efficiency of the battery 1.

[0034] According to some embodiments of the present invention, a mating portion 161 is formed on the cover plate 16. The mating portion 161 protrudes from the surface of the cover plate 16 and is adapted to be fixed with the top edge of the insulating member 13.

[0035] Specifically, the mating part 161 protrudes from the surface of the cover plate 16 and mates with the top edge of the insulator 13, increasing the contact area between the cover plate 16 and the insulator 13, thereby improving the connection strength between them. This helps prevent the battery 1 from loosening or being damaged during use due to factors such as vibration, impact, or temperature changes. By ensuring a firm connection between the insulator 13 and the cover plate 16, the mating part 161 also helps prevent electrolyte or other harmful substances inside the battery 1 from leaking into the external environment, improving the safety of the battery 1. The design of the mating part 161 makes the assembly process between the insulator 13 and the cover plate 16 simpler and more efficient, improving production efficiency.

[0036] According to some embodiments of the present invention, the mating part 161 is constructed as a plastic part.

[0037] Specifically, the plastic parts possess excellent sealing performance, effectively preventing the leakage of electrolyte or other harmful substances from inside the battery 1 into the external environment. This reduces potential safety risks during use or storage and extends the battery 1's lifespan. Furthermore, the plastic parts are lightweight yet strong, ensuring that the mating portion 161 provides sufficient connection strength without significantly increasing the overall weight of the battery 1. The plastic parts are easy to process and mold, allowing the mating portion 161 to be designed in various shapes and sizes to meet the needs of different batteries 1.

[0038] According to some embodiments of the present invention, a welding edge suitable for welding with the housing 11 is formed on the cover plate 16.

[0039] Specifically, the cover plate 16 and the housing 11 can be more securely connected by welding. This connection method has higher strength and stability than traditional screw or adhesive fixing, and can withstand greater external forces and impacts. The welded joint between the welded edge and the housing 11 forms a tight barrier, effectively preventing the electrolyte or other harmful substances inside the battery 1 from leaking into the external environment, thus improving the safety of the battery 1. Connecting the cover plate 16 and the housing 11 by welding simplifies the assembly process of the battery 1 and improves production efficiency.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0041] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0042] In the description of this utility model, "multiple" means two or more.

[0043] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0044] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery, characterized by, include: A housing (11) having an internal cavity (111) formed therein; A battery cell (12) is disposed within the receiving cavity (111); An insulating component (13) is provided, which covers the side and bottom of the battery cell (12) and is constructed as an integrally formed insulating shell. A cover plate (16) is disposed on the housing (11) and closes the receiving cavity (111).

2. The battery of claim 1, wherein, The insulating element (13) is constructed as a Mylar element.

3. The battery of claim 2, wherein, A plurality of through holes (14) are provided at intervals on the peripheral wall of the insulating member (13).

4. The battery of claim 3, wherein, Grooves (15) are provided at intervals on the peripheral wall of the insulating member (13), and the grooves (15) are recessed toward the surface of the battery cell (12).

5. The battery of claim 1, wherein, A mating part (161) is formed on the cover plate (16), the mating part (161) protruding from the surface of the cover plate (16) and adapted to be fixed to the top edge of the insulating member (13).

6. The battery of claim 5, wherein, The mating part (161) is constructed of plastic.

7. The battery of claim 5, wherein, The cover plate (16) has a welding edge that is suitable for welding to the housing (11).

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