Battery assembly and electric equipment

Abstract

The utility model relates to a battery assembly and electric equipment. The battery assembly comprises a shell and an electric connection structure arranged on the shell, a battery cell is contained in the shell, and the electric connection structure is electrically connected with the battery cell and used for outputting electric energy of the battery cell; wherein a mounting piece is fixed in the shell, and the electric connection structure comprises a first electric connection part and a second electric connection part which are arranged on the mounting piece; the first electric connection part is located in the shell and electrically connected with the positive electrode and the negative electrode of the battery cell, and the second electric connection part is located outside the shell; and the second electric connection part comprises a female seat with a slot, the opening of the slot faces the outside of the shell, and a conductive terminal is arranged in the slot. According to the scheme provided by the invention, the use of wires in related technologies can be avoided, no metal terminal is exposed, and the safety of the battery assembly is improved.

Description

Technical Field

[0001] This application relates to the field of new energy technologies, and particularly to battery components and electrical equipment. Background Art

[0002] A pouch battery, also known as a polymer lithium-ion battery or an aluminum plastic film battery, is a lithium-ion battery with a soft-packaged form. Such batteries have been widely used in recent years in fields such as electric vehicles and electronic devices.

[0003] The soft-pack batteries in related technologies use a conventional plug wire and a male socket as the output method. The wire cannot meet the requirements of external wires, and there is metal leakage, resulting in poor safety and not meeting the UL2054 LISTED certification requirements. In addition, the mechanical properties of the soft-pack battery in the width and length directions are poor and cannot meet the requirements of the UL2054 LISTED constant force extrusion test. Summary of the Utility Model

[0004] To solve or partially solve the problems existing in related technologies, this application provides a battery component and electrical equipment. This battery component can avoid the use of wires in related technologies and has no leakage of metal terminals, improving the safety of the battery component.

[0005] In the first aspect of this application, a battery component is provided, including:

[0006] A housing and an electrical connection structure disposed in the housing. The housing accommodates an electric core, and the electrical connection structure is electrically connected to the electric core for outputting the electric energy of the electric core.

[0007] Wherein, a mounting member is fixed in the housing, and the electrical connection structure includes a first electrical connection portion and a second electrical connection portion disposed on the mounting member; the first electrical connection portion is located inside the housing and is electrically connected to the positive and negative electrodes of the electric core, and the second electrical connection portion is located outside the housing; the second electrical connection portion includes a female socket having a slot, the opening of the slot faces outside the housing, and a conductive terminal is disposed in the slot.

[0008] In one embodiment, the mounting member is a circuit board, and the circuit board is fixed to the housing through a clamping structure;

[0009] The first electrical connection portion is disposed on the inner side of the circuit board, and the female socket is fixed on the outer side of the circuit board.

[0010] In one embodiment, the circuit board is closely attached to the inner wall of the housing, and the clamping structure includes a card slot disposed in the housing, and the edge of the circuit board is clamped in the card slot.

[0011] In one embodiment, the housing is square, and the thickness of the housing is less than the length and / or width of the housing;

[0012] The female socket is arranged on the side wall of the housing in the thickness direction, and the opening of the slot faces perpendicular to the side wall.

[0013] In one embodiment, a plug extending outward from the housing is provided on one side of the housing. The plug has a receiving cavity, and the female socket is received in the receiving cavity and is wrapped by the inner wall of the plug.

[0014] In one embodiment, the housing includes a bottom case and a top case, and the electrical connection structure is installed on the bottom case;

[0015] The bottom case has a cavity, the battery cell is accommodated in the cavity, an opening is provided above the cavity, and the top case covers the opening.

[0016] In one embodiment, the bottom case and the top case are made of fireproof plastic, and the bottom case and the top case are sealed and connected.

[0017] In one embodiment, the material of the housing is PC or ABS.

[0018] In one embodiment, the battery cell is a square soft-pack battery cell.

[0019] In the second aspect of the present application, an electrical device is provided, including the battery assembly described in the first aspect above.

[0020] The technical solution provided by the present application may include the following beneficial effects:

[0021] For the battery assembly provided by the present application, the female socket is used as the power output component of the battery assembly, and the conductive terminals are hidden in the slots of the female socket. On the one hand, it can avoid the use of wires in the related art, and there is no leakage of metal terminals, improving the safety of the battery assembly and meeting the relevant certification requirements of UL2054 LISTED.

[0022] Furthermore, the housing includes a bottom case and a top case, and the electrical connector is installed on the bottom case; the bottom case has a cavity, the battery cell is accommodated in the cavity, an opening is provided above the cavity, and the top case covers the opening. The joint between the bottom case and the top case is sealed by ultrasonic technology, so that it can meet the 250N constant force test requirement of "UL2054 Listed". The sealing reliability of the bottom case and the top case is strong, and the bottom case and the top case are not easily separated, making the battery assembly of the present application form an independent overall structure, which can improve the replaceability of the battery assembly and meet the requirements of separate sales.

[0023] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By describing the exemplary embodiments of this application in more detail in conjunction with the drawings, the above and other objects, features, and advantages of this application will become more apparent. Among them, in the exemplary embodiments of this application, the same reference numerals generally represent the same components.

[0025] Figure 1 is a perspective view of the battery assembly shown in the embodiments of this application;

[0026] Figure 2 is an exploded view of the battery assembly shown in the embodiments of this application;

[0027] Figure 3 is a schematic diagram of the internal structure of the battery assembly shown in the embodiments of this application.

[0028] Reference numerals: 100, housing; 110, bottom case; 120, face case; 111, plug; 1111, receiving cavity; 112, cavity; 113, card slot; 130, gasket; 140, insulating sheet; 200, electrical connection structure; 210, mounting member; 211, first electrical connection portion; 220, female seat; 221, terminal; 300, battery cell; 310, electrode. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The preferred embodiments of this application will be described in more detail below with reference to the drawings. Although the preferred embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make this application more thorough and complete, and to convey the scope of this application fully to those skilled in the art.

[0030] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a", "the", and "said" used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0031] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more, unless otherwise specifically and clearly defined.

[0032] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application.

[0033] Unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] The soft-pack batteries in the related art use conventional plug wires and male sockets as the output method. The wires cannot meet the requirements of external wires, and there is metal leakage, resulting in poor safety and not meeting the UL2054 LISTED certification requirements. The mechanical properties of the soft-pack batteries in the width direction and length direction are poor, and they also cannot meet the UL2054 LISTED constant force extrusion test requirements. To address the above problems, the embodiments of this application provide a battery assembly and an electrical device, which can avoid the use of wires in the related art, and there is no leakage of metal terminals, improving the safety of the battery assembly and meeting the UL2054 LISTED certification requirements.

[0035] The technical solutions of the embodiments of this application will be described in detail below with reference to the drawings.

[0036] Figure 1 is a perspective view of the battery assembly shown in the embodiments of this application; Figure 2 is an exploded view of the battery assembly shown in the embodiments of this application; Figure 3It is a schematic diagram of the internal structure of the battery assembly shown in the embodiments of the present application.

[0037] Refer to Figures 1 - 3 , the present application provides a battery assembly, which includes: a housing 100 and an electrical connection structure 200 provided on the housing 100. The housing 100 houses a battery cell 300, and the electrical connection structure is electrically connected to the battery cell 300 for outputting the electrical energy of the battery cell 300; wherein, a mounting member 210 is fixed in the housing 100, and the electrical connection structure 200 includes a first electrical connection portion 211 and a second electrical connection portion provided on the mounting member 210; the first electrical connection 211 portion is located in the housing 100 and is electrically connected to the positive and negative electrodes 310 of the battery cell 300, and the second electrical connection portion is located outside the housing 100; the second electrical connection portion includes a female seat 220 having a slot, the opening of the slot faces outside the housing 100, and a conductive terminal 221 is provided in the slot.

[0038] For the battery assembly provided by the present application, the female seat 220 is used as the electrical energy output component, and the conductive terminal 221 is hidden in the slot of the female seat 220. On the one hand, it can avoid the use of wire in the related art, and there is no leakage of the metal terminal 221, improving the safety of the battery assembly and meeting the relevant certification requirements of UL2054 LISTED.

[0039] In some embodiments, the mounting member 210 is a circuit board, and the circuit board is fixed to the housing 100 through a clamping structure; the first electrical connection portion 211 is provided on the inner side of the circuit board, and the female seat 220 is fixed to the outer side of the circuit board. The clamping structure includes a clamping groove 113 provided in the housing 100, and the edge of the circuit board is clamped in the clamping groove 113, so that the circuit board is fixed relative to the housing 100.

[0040] In some embodiments, the circuit board is closely attached to the inner wall of the housing 100 or the circuit board forms at least a partial area of one side wall of the housing 100. The housing 100 has an opening at the installation position of the female seat 220, and the circuit board is installed at the opening and can close the opening, so that the inside of the housing 100 is a sealed environment, which can improve the installation stability of the electrical connection structure 200.

[0041] In some embodiments, the housing 100 is square, the battery cell 300 is a square soft-pack battery cell 300, and the internal space of the housing 100 is adapted to the shape of the battery cell 300. When the battery cell 300 is accommodated in the housing 100, each inner wall of the housing 100 plays a limiting role on the battery cell 300, so that the battery cell 300 has good installation stability.

[0042] In this embodiment, the thickness of the housing 100 is less than the length direction X and / or the width direction Y of the housing 100; the female seat 220 is provided on the side wall of the housing 100 along the thickness direction Z, and the opening of the slot faces perpendicular to the side wall.

[0043] In some embodiments, a plug 111 extending outward from the housing 100 is provided on one side of the housing 100. The plug 111 has a receiving cavity 1111 therein, and the female socket 220 is received in the receiving cavity 1111 and is wrapped by the inner wall of the plug 111. The female socket 220 is embedded in the plug 111, wherein the female socket 220 does not exceed the outer contour of the plug 111. In this way, the plug 111 can protect the female socket 220 and improve the stability of the female socket 220, prevent the female socket 220 from loosening, and further improve the stability of the electrical connection of the battery assembly.

[0044] In some embodiments, the plug 111 and the housing 100 are of an integral structure.

[0045] The housing 100 includes a bottom case 110 and a top case 120. The electrical connection structure 200 is installed on the bottom case 110. The bottom case 110 has a cavity 112, and the battery cell 300 is received in the cavity 112. An opening is provided above the cavity 112, and the battery cell 300 can be placed in the cavity 112 through the opening. The top case 120 covers the opening to keep the battery cell 300 in a closed environment.

[0046] A gasket 130 and an insulating sheet 140 are provided between the periphery of the battery cell 300 and the inner wall of the housing 100. The gasket 130 can be made of materials such as foam and rubber. The insulating sheet 140 can insulate the battery cell to prevent electric leakage. The gasket 130 and the insulating sheet 140 can also improve the installation stability of the battery assembly in the housing 100.

[0047] The bottom case 110 and the top case 120 are made of a fireproof plastic, and the bottom case 110 and the top case 120 are hermetically connected. The bottom case 110 and the top case 120 can be made of the same material, such as PC (Polycarbonate) or ABC plastics that can meet the V-0 fire rating.

[0048] In some embodiments, the battery cell is wrapped by a housing, which improves the strength of the battery assembly. The joint between the bottom case 110 and the top case 120 is sealed by an ultrasonic process, and the sealing reliability of the bottom case 110 and the top case 120 is stronger. The bottom case 110 and the top case 120 are not easily separated, and the UL2054 LISTED constant force extrusion test requirements can be met in both the width direction Y and the length direction X of the battery assembly. During the test, the battery assembly of the present application is fully charged according to the specified charging method, and then a stable pressure of 250 ± 10 N (56 ± 2 lbf) is applied to the housing for 5 seconds, which is successively applied to the top, bottom and sides of the battery assembly housing. It is found through testing that the battery assembly has no weight loss, no explosion or fire, the housing has not cracked to the extent of exposing the battery cell, and there is no air leakage or liquid leakage after the battery assembly is placed for 6 hours. Therefore, the battery assembly of the present application has high structural strength, strong replaceability, and meets the requirements for separate sale. In some embodiments, the joint between the bottom case 110 and the top case 120 is sealed by an ultrasonic process, and the sealing reliability of the bottom case 110 and the top case 120 is stronger. The bottom case 110 and the top case 120 are not easily separated, so that the battery assembly of the present application forms an independent integral structure and meets the requirements for separate sale.

[0049] The present application also provides an electrical device, which includes the battery assembly of any one of the above embodiments. The electrical device of the present application can be a small electronic device, such as a toy, a calculator, a remote control, etc. Compared with the related art, the battery assembly of the electrical device of the present application uses the female socket 220 as the electrical energy output component, and the conductive terminal 221 is hidden in the slot of the female socket 220. On the one hand, it can avoid the use of wires in the related art, and there is no leakage of the metal terminal 221, which improves the safety of the battery assembly and can meet the relevant certification requirements of UL2054 LISTED.

[0050] The embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the disclosed embodiments.

Claims

1. A battery assembly, characterized in that, Comprising: A housing and an electrical connection structure provided on the housing. A battery cell is accommodated in the housing, and the electrical connection structure is electrically connected to the battery cell for outputting the electrical energy of the battery cell. Wherein, a mounting member is fixed in the housing, and the electrical connection structure includes a first electrical connection portion and a second electrical connection portion provided on the mounting member; the first electrical connection portion is located inside the housing and is electrically connected to the positive and negative electrodes of the battery cell, and the second electrical connection portion is located outside the housing; the second electrical connection portion includes a female socket having a slot, the opening of the slot faces outward of the housing, and a conductive terminal is provided in the slot.

2. The battery assembly according to claim 1, wherein: The mounting member is a circuit board, and the circuit board is fixed to the housing through a snap-fit structure. The first electrical connection portion is provided on the inner side of the circuit board, and the female socket is fixed to the outer side of the circuit board.

3. The battery assembly according to claim 2, wherein: The circuit board is closely attached to the inner wall of the housing, and the snap-fit structure includes a card slot provided in the housing, and the edge of the circuit board is snap-fitted into the card slot.

4. The battery assembly according to claim 3, wherein: The housing is square, and the thickness of the housing is less than the length and / or width of the housing. The female socket is provided on the side wall of the housing in the thickness direction, and the opening of the slot faces perpendicular to the side wall.

5. The battery assembly according to claim 1, wherein: A plug extending outward of the housing is provided on one side of the housing. A receiving cavity is provided in the plug, the female socket is received in the receiving cavity, and the female socket is wrapped by the inner wall of the plug.

6. The battery assembly according to claim 1, wherein: The housing includes a bottom case and a top case, and the electrical connection structure is installed on the bottom case. The bottom case has a cavity, the battery cell is accommodated in the cavity, an opening is provided above the cavity, and the top case covers the opening.

7. The battery assembly according to claim 6, wherein: The bottom case and the top case are made of a plastic having fireproof performance, and the bottom case and the top case are hermetically connected.

8. The battery assembly according to claim 6, wherein: The material of the housing is PC or ABS.

9. The battery assembly according to any one of claims 1-8, wherein: The battery cell is a square soft-pack battery cell.

10. An electrical device, characterized in that, Including the battery assembly according to any one of claims 1-9.

Images