Battery and electric equipment

Abstract

The utility model relates to a battery and electric equipment. The battery comprises a shell; the top cover assembly comprises a cover plate, a pole and an insulating component, and the pole is arranged on the cover plate; the insulating component is connected with the cover plate, the insulating component comprises a first insulating part and a second insulating part, the second insulating part is rotationally connected with the first insulating part, a reinforcing part is arranged on the second insulating part, and the reinforcing part extends in the first direction; the battery cell comprises a battery cell body and a tab, the tab comprises a connecting end and a free end which are oppositely arranged, the connecting end is connected with the battery cell body, and the free end of at least part of the tab is located between the first insulating part and the second insulating part. Therefore, the two sides of the top cover are powerfully supported, the flatness of the top cover assembly is effectively improved, and the problems that the battery top cover is difficult to enter the shell and the yield is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, in particular to a battery and an electrical device. Background Art

[0002] Power batteries generally include a top cover, a battery cell, a shell, an insulating member, and other structures. The battery cell is fixed in the shell, and a tab extends from the top of the battery cell to connect to the pole on the top cover. The insulating member is installed under the top cover, and the top cover and the battery cell can be insulated and separated by the insulating member. In the process of simplifying power batteries, a single-cell battery has emerged, in which only one battery cell is arranged inside the battery, and a tab extends from the top of the battery cell, which is electrically connected to the pole or adapter.

[0003] However, the disadvantage of the prior art is that after the battery cell is placed in the shell, only one side has a bent pole ear, and the other side is suspended, resulting in uneven force on both sides of the top cover after the battery cell is placed in the shell, which causes the top cover to be unevenly placed in the shell, thereby affecting the battery shelling efficiency and the battery qualification rate. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a battery and an electrical device that can solve the problems of difficulty in inserting the top cover into the shell, uneven top cover and low yield rate during battery installation.

[0005] In order to solve the above technical problems, the utility model provides a battery, comprising:

[0006] case;

[0007] A top cover assembly, comprising a cover plate, a pole and an insulating member, wherein the pole is arranged on the cover plate; the insulating member is connected to the cover plate, the insulating member comprises a first insulating member and a second insulating member, the second insulating member is rotatably connected to the first insulating member, a reinforcing member is arranged on the second insulating member, and the reinforcing member is extended along a first direction; when the second insulating member is rotated to be opposite to the first insulating member, the reinforcing member is located between the first insulating member and the second insulating member;

[0008] A battery cell comprises a battery cell body and a pole lug, wherein the pole lug comprises a connecting end and a free end arranged opposite to each other, the connecting end is connected to the battery cell body, at least part of the free end of the pole lug is located between the first insulating member and the second insulating member, and the reinforcement member is arranged on a side of the second insulating member corresponding to the free end of the pole lug.

[0009] In one embodiment of the present invention, the height of the reinforcement member protruding from the second insulating member is 1-3 mm.

[0010] In one embodiment of the present invention, the dimension of the reinforcement member along the second direction is 3 mm-1 / 2 of the width of the second insulating member.

[0011] In one embodiment of the present invention, the distance from the reinforcement member to the central axis of the second insulating member is equal to the distance from the connecting end of the pole tab to the central axis of the second insulating member.

[0012] In an embodiment of the present invention, the reinforcement member includes a first reinforcement rib, and a first groove is provided on the first reinforcement rib.

[0013] In an embodiment of the present invention, the depth of the first groove is not greater than the height of the first reinforcing rib.

[0014] In an embodiment of the present invention, the reinforcement member includes a plurality of first reinforcement ribs, the plurality of first reinforcement ribs are arranged at intervals along the first direction, and a second groove is provided on the first reinforcement ribs.

[0015] In an embodiment of the present invention, the depth of the second groove is not greater than the height of the first reinforcing rib.

[0016] In an embodiment of the present invention, a side of the reinforcement member close to the connection end of the pole lug has a curved surface.

[0017] The utility model also provides an electrical device, comprising the battery as described above.

[0018] The above technical solution of the utility model has the following advantages compared with the prior art:

[0019] A battery described in the utility model is provided with a shell, a top cover assembly, an insulating member and a battery cell, wherein the battery cell includes a battery cell body and a pole ear, the top cover assembly includes a cover plate and a pole column, and the insulating member is arranged between the cover plate and the battery cell body, so that the cover plate and the battery cell body are insulated from each other. Specifically, the insulating member includes a first insulating member and a second insulating member that are rotatably connected, wherein a reinforcing member is provided on the second insulating member, and when the battery is installed, at least part of the free end of the pole ear is located in the space between the first insulating member and the second insulating member, and at least part of the free end of the pole ear is in contact with the reinforcing member. In the prior art, after the battery cell is placed in the shell, the connecting end of the pole ear can provide a certain support for one side of the cover plate, while the free end of the pole ear is in a suspended state, which causes the free end of the pole ear to easily collapse toward the battery cell body, thereby causing the cover plate to tilt and the flatness of the top cover assembly to deteriorate. The utility model provides a reinforcing member at the position of the second insulating member corresponding to the free end of the pole ear to support the free end of the pole ear. At the same time, because the other end of the pole ear is connected to the battery body, the pole ear located between the first insulating member and the second insulating member can be effectively supported to avoid the risks of pole ear collapse and inverted insertion, thereby effectively supporting both sides of the cover plate, effectively improving the flatness of the top cover assembly, and solving the problems of difficulty in inserting the battery top cover into the shell and low yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein:

[0021] Figure 1 It is a schematic structural diagram of an insulating component of a preferred embodiment of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the second insulating member of the preferred embodiment of the utility model.

[0023] Figure 3 It is a structural schematic diagram of a third embodiment of the second insulating member of the preferred embodiment of the utility model.

[0024] Figure 4 It is a structural schematic diagram of a fourth embodiment of the second insulating member of the preferred embodiment of the utility model.

[0025] Figure 5 It is a structural schematic diagram of a fourth embodiment of the second insulating member of the preferred embodiment of the utility model.

[0026] Figure 6 It is a cross-sectional schematic diagram of the overall structure of a battery in a preferred embodiment of the present utility model.

[0027] Figure 7It is an exploded view of the overall structure of the battery in the preferred embodiment of the present utility model.

[0028] Figure 8 yes Figure 7 A magnified view of the local structure.

[0029] Explanation of the reference numerals in the drawings in the specification: 1. first insulating member; 10. cover plate; 11. pole; 13. cell body; 14. pole ear; 2. second insulating member; 31. first reinforcing rib; 310. first groove; 311. second groove. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0031] Embodiment 1

[0032] Reference Figure 1 , Figure 2 as well as Figure 6-Figure 8 As shown, the utility model discloses a battery, including a housing 12, one end of which is provided with an opening;

[0033] The battery further includes a top cover assembly, which is mounted on the opening. The top cover assembly includes a cover plate 10, a pole 11 and an insulating member. The pole 11 is disposed on the cover plate 10, and the pole 11 and the cover plate 10 are insulated from each other.

[0034] The insulating member is connected to the cover plate 10, specifically, the insulating member includes a first insulating member 1 and a second insulating member 2, the second insulating member 2 is rotatably connected to the first insulating member 1, and a reinforcing member is provided on the second insulating member 2, and the reinforcing member is extended along a first direction. It should be noted that the first direction is in the same direction as the length direction of the second insulating member 2, which can also be understood as the first direction is in the same direction as the longitudinal extension direction of the second insulating member 2.

[0035] It needs to be explained that the insulating component has a pre-installed state and an installed state. When the insulating component is not assembled to the battery, the insulating component is in the pre-installed state, the first insulating component 1 and the second insulating component 2 are spread out from each other, and the second insulating component 2 and the first insulating component 1 have a non-zero angle; when the insulating component is installed to the battery, the insulating component is in the installed state, the first insulating component 1 and the second insulating component 2 are opposite to each other, and are interlocked with each other.

[0036] When the second insulating member 2 is rotated to be opposite to the first insulating member 1 , the reinforcing member is located between the first insulating member 1 and the second insulating member 2 .

[0037] The battery further comprises a cell, which is received in the housing 12 through the opening, and comprises a cell body 13 and a tab 14, wherein the tab 14 comprises a connecting end and a free end which are arranged opposite to each other, wherein the connecting end is connected to the cell body 13, and at least part of the free end of the tab 14 is located between the first insulating member 1 and the second insulating member 2, and the reinforcing member is arranged on a side of the second insulating member corresponding to the free end of the tab 14. In detail, the insulating member is located between the cell body 13 and the cover plate 10.

[0038] It can be known that a battery to be protected by the utility model is provided with a shell, a top cover assembly, an insulating member and a battery cell, the battery cell includes a battery cell body and a pole ear, the top cover assembly includes a cover plate and a pole column, and the insulating member is arranged between the cover plate and the battery cell body, so that the cover plate and the battery cell body are insulated from each other. Specifically, the insulating member includes a first insulating member and a second insulating member that are rotatably connected, wherein a reinforcing member is provided on the second insulating member, and when the battery is installed, at least part of the free end of the pole ear is located in the space between the first insulating member and the second insulating member, and at least part of the free end of the pole ear abuts against the reinforcing member. In the prior art, after the battery cell is placed in the shell, the connecting end of the pole ear can provide a certain support for one side of the cover plate, while the free end of the pole ear is in a suspended state, which causes the free end of the pole ear to easily collapse toward the battery cell body, thereby causing the cover plate to tilt and the flatness of the top cover assembly to deteriorate. The utility model provides a reinforcing member at the position of the second insulating member corresponding to the free end of the pole ear to support the free end of the pole ear. At the same time, because the other end of the pole ear is connected to the battery body, the pole ear located between the first insulating member and the second insulating member can be effectively supported to avoid the risks of pole ear collapse and inverted insertion, thereby effectively supporting both sides of the cover plate, effectively improving the flatness of the top cover assembly, and solving the problems of difficulty in inserting the battery top cover into the shell and low yield rate.

[0039] As a preferred embodiment, the reinforcement is arranged on one side edge of the second insulating member 2 corresponding to the free end of the pole tab, and the reinforcement is also extended along the first direction. In this way, the reinforcement can provide a certain support force for the free end of the pole tab 14, and can prevent the cover plate 10 from being subjected to uneven force during welding, effectively prevent the pole tab 14 from collapsing and inverted insertion, and improve the welding quality of the cover plate 10. In other words, the connection end of the pole tab 14 is connected to the battery body 13, and the free end of the pole tab 14 is supported on the reinforcement, which can ensure that the pole tab 14 is subjected to uniform force, further ensure that the cover plate 10 is subjected to uniform force, and improve the welding quality of the cover plate 10 and the shell 12.

[0040] Furthermore, in order to save installation space and achieve a better supporting effect, the height of the reinforcement member protruding from the second insulating member 2 is 1-3 mm.

[0041] As a preferred implementation, the dimension of the reinforcement member along the second direction is 3 mm-1 / 2 of the width of the second insulating member 2 .

[0042] Furthermore, the first insulating member 1 and the second insulating member 2 are connected by a buckle. Specifically, the first insulating member 1 is provided with a buckle portion, and the second insulating member 2 is provided with a clamping portion that matches the buckle portion; or the first insulating member 1 is provided with a clamping portion, and the second insulating member 2 is provided with a buckle portion that matches the clamping portion.

[0043] In terms of details, the first insulating member 1 and the second insulating member 2 can be connected by screwing, riveting or ultrasonic connection, so that the first insulating member 1 and the second insulating member can be folded freely and can maintain a relatively stable connection.

[0044] As a preferred implementation, the first insulating member 1 and the second insulating member 2 may also be designed to be integrally formed, so that the first insulating member 1 and the second insulating member 2 form a whole and can reduce errors during assembly to a certain extent.

[0045] Embodiment 2

[0046] Different from the first embodiment, the distance from the reinforcing member to the central axis of the second insulating member 2 is equal to the distance from the connecting end of the tab 14 to the central axis of the second insulating member 2. In this way, during the installation process, it can be further ensured that the tab 14 is subjected to uniform force, so that the two sides of the cover plate 10 can also be subjected to uniform force.

[0047] Embodiment 3

[0048] The difference from the first and second embodiments is that the Figure 3 From the perspective of the reinforcement, the reinforcement includes a first reinforcement rib 31. In order to reduce the weight of the second insulating member 2, reduce material waste, save costs, and reduce the overall weight of the battery, a first groove 310 is provided on the first reinforcement rib 31. The first groove 310 extends along the thickness direction of the first insulating member 1 or the second insulating member 2.

[0049] As a preferred implementation, the depth of the first groove 310 is not greater than the height of the first reinforcing rib 31 .

[0050] Embodiment 4

[0051] Different from the third embodiment, Figure 4 as well as Figure 5 As shown, the reinforcement member includes a plurality of first reinforcement ribs 31, which are sequentially arranged at intervals along the first direction, and at least one of the first reinforcement ribs 31 is provided with a second groove 311. Moreover, the number of the first reinforcement ribs 31 can be adjusted according to actual needs.

[0052] Such a configuration can also reduce material waste and lighten the weight of the second insulating member 2, thereby reducing the overall weight of the battery.

[0053] As a preferred implementation, the second groove 311 is extended along the thickness direction of the first insulating member 1 or the second insulating member 2 , and the depth of the second groove 311 is not greater than the height of the first reinforcing rib 31 .

[0054] Embodiment 5

[0055] Different from the above embodiments, the reinforcing member has a curved surface on one side of the connection end close to the pole lug 14. With such a configuration, when the reinforcing member contacts the free end of the pole lug 14, the curved surface can guide the pole lug, and the curved surface can also effectively prevent the pole lug 14 from being folded and damaged.

[0056] Embodiment 6

[0057] The utility model also discloses an electric device, wherein the electric device comprises the battery as described in the first to fifth embodiments, and the battery supplies power to the electric device.

[0058] Since the battery cells can be evenly stressed when entering the shell, the top cover is flat and not easy to lift up, so the quality of the battery is guaranteed, and the electrical equipment using the above battery can obtain a relatively stable and long-term power supply.

[0059] Electrical equipment may be automobiles, portable devices, laptops, ships, spacecraft, electric toys, electric tools, and the like. Automobiles may be fuel-powered automobiles, gas-powered automobiles, or new energy automobiles. New energy automobiles may be pure electric vehicles, hybrid electric vehicles, or extended-range vehicles, and the like; spacecraft include airplanes, rockets, space shuttles, and spacecraft, and the like; electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, and the like; electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, and the like. The embodiments of the present invention do not impose any special restrictions on the above-mentioned electrical equipment.

[0060] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" 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 utility model can be understood according to specific circumstances.

[0061] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A battery, characterized in that: include, Housing (12); A top cover assembly, comprising a cover plate (10), a pole (11) and an insulating component, wherein the pole (11) is arranged on the cover plate (10); the insulating component is connected to the cover plate (10); the insulating component comprises a first insulating component (1) and a second insulating component (2); the second insulating component (2) is rotatably connected to the first insulating component (1); a reinforcing component is provided on the second insulating component (2), and the reinforcing component is extended along a first direction; when the second insulating component (2) is rotated to be opposite to the first insulating component (1), the reinforcing component is located between the first insulating component (1) and the second insulating component (2); A battery cell, comprising a battery cell body (13) and a pole lug (14), wherein the pole lug (14) comprises a connecting end and a free end which are arranged opposite to each other, wherein the connecting end is connected to the battery cell body (13), wherein at least part of the free end of the pole lug (14) is located between the first insulating member (1) and the second insulating member (2), and wherein the reinforcing member is arranged on a side of the second insulating member corresponding to the free end of the pole lug (14).

2. A battery according to claim 1, characterized in that: The height of the reinforcing member protruding from the second insulating member (2) is 1-3 mm.

3. A battery according to claim 2, characterized in that: The dimension of the reinforcement member along the second direction is 3 mm-1 / 2 of the width of the second insulating member (2).

4. A battery according to claim 1, characterized in that: The distance from the reinforcing member to the central axis of the second insulating member (2) is equal to the distance from the connecting end of the pole lug (14) to the central axis of the second insulating member (2).

5. A battery according to any one of claims 1 to 4, characterized in that: The reinforcement member comprises a first reinforcement rib (31), and a first groove (310) is provided on the first reinforcement rib (31).

6. A battery according to claim 5, characterized in that: The depth of the first groove (310) is no greater than the height of the first reinforcing rib (31).

7. A battery according to any one of claims 1 to 4, characterized in that: The reinforcement member comprises a plurality of first reinforcement ribs (31), the plurality of first reinforcement ribs (31) are arranged at intervals along the first direction, and a second groove (311) is provided on the first reinforcement rib (31).

8. A battery according to claim 7, characterized in that: The depth of the second groove (311) is no greater than the height of the first reinforcing rib (31).

9. A battery according to any one of claims 1 to 4, characterized in that: A side of the reinforcement member close to the connection end of the pole lug (14) has a curved surface.

10. An electrical equipment, characterized in that: A battery comprising a battery as claimed in any one of claims 1 to 9.

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