CN219419337U

CN219419337U - Battery cell

Info

Publication number: CN219419337U
Application number: CN202320445406.5U
Authority: CN
Inventors: 卫志达; 曾玉祥
Original assignee: Zhuhai Cosmx Battery Co Ltd
Current assignee: Zhuhai Cosmx Battery Co Ltd
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-07-25
Anticipated expiration: 2033-03-09

Abstract

The application relates to the technical field of batteries, in particular to a battery. The battery comprises a shell, wherein a cavity is formed by surrounding the shell; the battery cell, printed circuit board and coupling assembling, printed circuit board and battery cell pass through coupling assembling and connect, and the battery cell is located the cavity, and coupling assembling is including detachable first connecting piece and the second connecting piece of connection, and first connecting piece is connected with the battery cell, and the second connecting piece is connected with printed circuit board. In the use, the connection of first connecting piece and second connecting piece realizes the electricity of electric core and printed circuit board and is connected, when electric core or printed circuit board break down, dismantle first connecting piece and second connecting piece, change electric core or printed circuit board that breaks down, adopt new electric core or printed circuit board to change former electric core or printed circuit board that breaks down. Therefore, the material cost can be reduced, the cost of the subsequent updating and attenuation battery is reduced, the resource waste is reduced, and the environment is protected.

Description

Battery cell

Technical Field

The application relates to the technical field of batteries, in particular to a battery.

Background

Steel-shell batteries are commonly used energy storage devices that generally include a housing, a cover, a cell, a closure tab, and the like. After the steel shell battery cell is assembled, packaging treatment is needed. In the related art, during packaging, a printed circuit board of a protection circuit is connected with a battery core through a wire in a laser welding mode.

However, the laser welding method is inconvenient to detach and is unfavorable for replacing the battery cells, so that the cost of the battery is high and resources are wasted.

Disclosure of Invention

The present application provides a battery that effectively solves the above-mentioned and other potential technical problems.

A first aspect of the present application provides a battery comprising a housing enclosing a cavity; the battery cell, the printed circuit board and the connecting component are electrically connected through the connecting component, and the battery cell is positioned in the cavity; the connecting assembly comprises a first connecting piece and a second connecting piece which are detachably connected, the first connecting piece is connected with the battery cell, and the second connecting piece is connected with the printed circuit board.

The battery provided by the embodiment of the application comprises a shell body which is enclosed into a cavity; the battery cell, the printed circuit board and the connecting component are connected through the connecting component, and the battery cell is positioned in the cavity; and the connecting assembly comprises a first connecting piece and a second connecting piece which are detachably connected, the first connecting piece is connected with the battery cell, and the second connecting piece is connected with the printed circuit board. In the use, the connection of accessible first connecting piece and second connecting piece, and then realize electric connection of electric core and printed circuit board, when either one of them breaks down, can dismantle first connecting piece and second connecting piece, and then change electric core or printed circuit board that breaks down, adopt new no trouble electric core or printed circuit board to change former broken down electric core or printed circuit board. By the arrangement, material cost can be effectively reduced, cost of updating the attenuation battery in the follow-up process is effectively reduced, resource waste is reduced, and environment is protected.

In an alternative embodiment of the first aspect, the first connector comprises a catch and the second connector comprises a catch groove cooperating with the catch; the first connecting piece and the second connecting piece are elastic conductive pieces.

The first connecting piece and the second connecting piece are clamped and connected electrically.

In an alternative embodiment of the first aspect, the first connection member includes a first connection portion and a clamping portion connected at an end portion, the first connection portion is connected to the battery cell, and the clamping portion is connected to the second connection member.

So set up, and then realize the detachably of first connecting piece and second connecting piece and connect.

In an optional embodiment of the first aspect, the first connection portion and the clamping portion are both in a sheet-like structure, a plane in which the first connection portion is located and a plane in which the clamping portion is located are disposed at a first included angle, and the clamping portion extends in a direction away from the first connection portion.

So set up for joint portion extends towards the direction of keeping away from first connecting portion, namely stretches out towards the direction of keeping away from the electric core to joint portion promptly, and then is convenient for realize the connection of joint portion and second connecting piece, avoids having the structure of electric core to interfere the phenomenon that joint portion and second connecting piece are connected when joint portion and second connecting piece are connected.

In an alternative embodiment of the first aspect, the first connecting piece further comprises a transition portion, the first connecting portion is connected with the clamping portion through the transition portion, and the transition portion is arranged at a second included angle with the first connecting portion and the clamping portion.

The arrangement of the battery cell connecting piece is characterized in that the clamping part can extend towards the direction away from the battery cell in structure, and further extends towards the direction of the second connecting piece, so that the clamping part is connected with the second connecting piece conveniently.

In an alternative embodiment of the first aspect, the transition portion comprises a first arc-shaped transition section and a second arc-shaped transition section, two ends of the first arc-shaped transition section are respectively connected with the first connection portion and the second arc-shaped transition section, and one end of the second arc-shaped transition section, which is far away from the first arc-shaped transition section, is connected with the clamping portion.

So set up, have the technical effect of reinforcing first connecting piece's structural strength.

In an alternative embodiment of the first aspect, the first connection portion and the snap-in portion extend towards opposite sides of the transition portion, respectively.

So set up, realize that first connecting portion is connected with the electric core firmly. Meanwhile, the convenience of connection of the clamping part and the second connecting piece is further guaranteed.

In an alternative embodiment of the first aspect, the second connection member comprises a second connection portion and a housing portion, the housing portion being connected to the second connection portion to form a receiving slot for receiving the first connection member; one end of the accommodating groove is provided with an opening, and the first connecting piece is arranged in the accommodating groove through the opening.

The first connecting piece and the second connecting piece are convenient to separate or install.

In an alternative embodiment of the first aspect, the housing part is provided with a clamping hole communicating with the accommodating groove, and the first connecting piece is provided with clamping teeth matched with the clamping hole in shape; the first connecting piece is connected in the accommodating groove in a sliding way, and the clamping teeth are clamped in the clamping holes.

The arrangement can limit the movable range of the latch to the inside of the latch hole, so that the latch is prevented from shaking in the latch hole, and the connection stability of the first connecting piece and the second connecting piece is further affected.

In an alternative embodiment of the first aspect, the housing part is provided with a guide opening, which is provided at the edge of the housing part near the opening; the edge shape of the guide opening is matched with the shape of the latch; the guide opening extends toward the direction of the clamping hole.

So set up, promote the convenience that latch and card hole are connected.

In an alternative embodiment of the first aspect, the cells comprise laminated cells or wound cells.

In an alternative embodiment of the first aspect, the cell is provided with a positive tab and a negative tab.

In an alternative embodiment of the first aspect, the battery cell comprises a plurality of electrode tabs arranged in a stacked manner, the electrode tabs comprising a first current collector, and the positive tab is arranged on the first current collector.

Additional aspects of the utility model 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 utility model.

Drawings

The foregoing and other objects, features and advantages of embodiments of the present application will become more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings. Embodiments of the present application will now be described, by way of example and not limitation, in the figures of the accompanying drawings, in which:

fig. 1 is a schematic diagram of the overall structure of a battery provided in an embodiment of the present application;

FIG. 2 is an enlarged view of a portion at I in FIG. 1;

fig. 3 is a schematic structural diagram of a printed circuit board with a hidden portion of a battery according to an embodiment of the present application;

FIG. 4 is an enlarged view of a portion at II in FIG. 3;

fig. 5 is a schematic structural view of a part of a printed circuit board and a connection assembly of a battery according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a connection assembly of a battery according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a first connection member of a battery according to an embodiment of the present application at a first view angle;

fig. 8 is a schematic structural diagram of a first connection member of a battery according to an embodiment of the present application at a second view angle;

fig. 9 is a schematic structural diagram of a second connector of a battery according to an embodiment of the present application.

Reference numerals illustrate:

10. a battery; 100. a battery cell; 200. a printed circuit board; 300. a connection assembly; 310. a first connector; 311. a first connection portion; 312. a clamping part; 313. a transition section; 314. a first arcuate transition section; 315. a second arcuate transition section; 316. latch teeth; 320. a second connector; 321. a second connecting portion; 322. a cover part; 323. an opening; 324. a clamping hole; 325. a guide opening.

Detailed Description

In the description of the embodiments of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience in describing the embodiments of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the embodiments of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; may be a mechanical connection; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As described in the background art, the traditional steel shell battery adopts a laser welding mode, is inconvenient to detach, and when any one of the following battery core or the printed circuit board fails, the whole battery needs to be abandoned because of being incapable of detaching, and the replacement of the battery core or the printed circuit board is not facilitated, so that the resource waste is caused.

The inventor of the application found through research that the connection mode of the battery core or the printed circuit board is set to be detachably connected, and when the battery core or the printed circuit board fails, the failed battery core or the printed circuit board can be replaced.

In view of this, the battery that this application embodiment provided through setting up coupling assembling, realizes that electric core and printed circuit board's detachably connect, and then is convenient for change of electric core or printed circuit board, reduce cost.

Specifically, the battery provided by the embodiment of the application comprises a shell body which is enclosed into a cavity; the battery cell, printed circuit board and coupling assembling, printed circuit board and battery cell pass through coupling assembling and connect, and the battery cell is located the cavity, and coupling assembling includes first connecting piece and the second connecting piece of detachable connection, and first connecting piece is connected with the battery cell, and the second connecting piece is connected with printed circuit board. In the use, the connection of accessible first connecting piece and second connecting piece, and then realize electric connection of electric core and printed circuit board, when either one of them breaks down, can dismantle first connecting piece and second connecting piece, and then change electric core or printed circuit board that breaks down, adopt new no trouble electric core or printed circuit board to change former broken down electric core or printed circuit board. By the arrangement, material cost can be effectively reduced, cost of updating the attenuation battery in the follow-up process is effectively reduced, resource waste is reduced, and environment is protected.

The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.

Referring to fig. 1 to 9, a battery 10 provided in an embodiment of the present application includes a housing enclosing a cavity; the battery cell 100, the printed circuit board 200 and the connecting assembly 300 are electrically connected through the connecting assembly 300, and the battery cell 100 is positioned in the cavity; the connection assembly 300 includes a first connector 310 and a second connector 320 which are detachably connected, the first connector 310 being connected with the battery cell 100, and the second connector 320 being connected with the printed circuit board 200.

Specifically, the battery cell 100 of the battery 10 and the printed circuit board 200 of the battery 10 are electrically connected by the connection assembly 300, the connection assembly 300 includes a first connector 310 and a second connector 320 detachably connected, and in use, the first connector 310 is connected with the battery cell 100 and the second connector 320 is connected with the printed circuit board 200. When the battery cell 100 or the printed circuit board 200 fails, the first connecting piece 310 and the second connecting piece 320 can be separated, the failed battery cell 100 or the printed circuit board 200 can be replaced, the failed piece can be replaced, and the battery cell 100 or the printed circuit board 200 which does not fail originally can be continuously connected with a new battery cell 100 or the printed circuit board 200 which does not fail. By the arrangement, the cost of subsequently replacing the fault part can be effectively reduced.

In an alternative exemplary embodiment, the first connector 310 includes a catch and the second connector 320 includes a catch that mates with the catch; the first connector 310 and the second connector 320 are elastic conductive members.

It should be noted that, specifically, in this embodiment, the first connector 310 is set to include a buckle, the second connector 320 is set to include a clamping groove, the buckle is connected with the clamping groove in a matching manner, in the assembly process, the electrical connection between the electrical core 100 and the printed circuit board 200 can be realized through the clamping connection between the buckle and the clamping groove, when the electrical core 100 or the printed circuit board 200 fails, the buckle can be separated from the clamping groove, and further, the separation between the electrical core 100 and the printed circuit board 200 is realized, and the first connector 310 and the second connector 320 are elastic conductive members for realizing the clamping connection and the electrical connection between the first connector 310 and the second connector 320.

In an alternative exemplary embodiment, the first connector 310 includes a first connection portion 311 and a clamping portion 312 connected at an end, the first connection portion 311 is connected with the battery cell 100, and the clamping portion 312 is connected with the second connector 320.

In particular, in the present embodiment, the first connector 310 is configured to include the first connecting portion 311 and the clamping portion 312 connected at the end, the first connecting portion 311 is connected with the battery cell 100, the clamping portion 312 is connected with the second connector 320, that is, the first connecting portion 311 is used for connecting the battery cell 100 and the clamping, the clamping portion 312 is used for detachably connecting with the second connector 320, and further, the first connector 310 and the second connector 320 are detachably connected.

In an alternative exemplary embodiment, the first connection portion 311 and the clamping portion 312 are both in a sheet structure, the plane of the first connection portion 311 and the plane of the clamping portion 312 form a first included angle, and the clamping portion 312 extends in a direction away from the first connection portion 311.

In the embodiment, the first connection portion 311 and the clamping portion 312 are both configured as a sheet structure, and a plane in which the first connection portion 311 is disposed and a plane in which the clamping portion 312 is disposed form a first included angle. So set up for joint portion 312 extends towards the direction of keeping away from first connecting portion 311, namely joint portion 312 stretches out towards the direction of keeping away from electric core 100, and then is convenient for realize the connection of joint portion 312 and second connecting piece 320, avoids having the structure of electric core 100 to interfere the phenomenon that joint portion 312 is connected with second connecting piece 320 when joint portion 312 is connected with second connecting piece 320.

The first included angle may have an angle value of, for example, 70 ° to 150 °.

In an alternative exemplary embodiment, the first connecting piece 310 further includes a transition portion 313, the first connecting portion 311 and the clamping portion 312 are connected by the transition portion 313, and the transition portion 313 is disposed at a second included angle with both the first connecting portion 311 and the clamping portion 312.

It should be noted that, in the embodiment, the transition portion 313 and the first connection portion 311 and the clamping portion 312 are disposed at a second angle, that is, the first connection portion 311 and the clamping portion 312 are disposed in parallel. By this arrangement, the clamping portion 312 can further extend toward the direction away from the battery cell 100, and further extend toward the second connector 320, so as to facilitate connection between the clamping portion 312 and the second connector 320.

Specifically, the angle value of the second included angle may be set to 90 °, that is, the included angle between the plane in which the first connection portion 311 is located and the plane in which the transition portion 313 is located is 90 °; the angle between the plane of the clamping portion 312 and the plane of the transition portion 313 is 90 °.

In an alternative exemplary embodiment, the transition portion 313 includes a first arc-shaped transition section 314 and a second arc-shaped transition section 315, two ends of the first arc-shaped transition section 314 are respectively connected to the first connection portion 311 and the second arc-shaped transition section 315, and one end of the second arc-shaped transition section 315, which is far from the first arc-shaped transition section 314, is connected to the clamping portion 312.

It should be noted that, in this embodiment, the transition portion 313 includes a first arc-shaped transition section 314 and a second arc-shaped transition section 315, two ends of the first arc-shaped transition section 314 are respectively connected to the first connection portion 311 and the second arc-shaped transition section 315, and one end of the second arc-shaped transition section 315, which is far away from the first arc-shaped transition section 314, is connected to the clamping portion 312. That is, the connection between the transition portion 313 and the first connection portion 311 is rounded, so as to avoid the phenomenon that the connection between the transition portion 313 and the first connection portion 311 is easily broken due to stress concentration at the connection between the transition portion 313 and the first connection portion 311. Similarly, the second arc-shaped transition section 315 at the connection position of the transition portion 313 and the clamping portion 312 is rounded at the connection position of the transition portion 313 and the clamping portion 312, so that the phenomenon that the connection position of the clamping portion 312 and the transition portion 313 is easily broken due to stress concentration at the connection position of the transition portion 313 and the clamping portion 312 is avoided, and the technical effect of enhancing the structural strength of the first connecting piece 310 is achieved.

Specifically, in the present embodiment, the convex arc surface of the first arc-shaped transition section 314 protrudes toward the side close to the clamping portion 312, and the convex arc surface of the second arc-shaped transition section 315 protrudes toward the side close to the first connecting portion 311. In this way, the two edges of the first arc-shaped transition section 314 can be smoothly connected with the edge of the first connecting portion 311 and the edge of the transition portion 313 respectively. Similarly, two edges of the second arc-shaped transition section 315 may be smoothly connected with the edges of the clamping portion 312 and the transition portion 313 respectively.

Specifically, in the present embodiment, the width dimensions of the connection edges of the first connection portion 311 and the engagement portion 312 and the transition portion 313 are the same. By such arrangement, the overall structure of the first connector 310 can be more regular, and the stability of the structure is facilitated.

Specifically, as shown in fig. 8, the width of both ends of the transition portion 313 is a, and the width of the connecting edges of the first connecting portion 311 and the clamping portion 312 is b, where a and b are equal.

Illustratively, in this embodiment, the first connector 310 is an integral piece.

It should be noted that, the first connecting piece 310 is an integrally formed piece, that is, the first connecting portion 311, the transition portion 313 and the clamping portion 312 are integrally formed, so that the structural stability of the first connecting piece 310 can be effectively enhanced, and the stability of the connection between the first connecting piece 310 and the second connecting piece 320 is further ensured.

In an alternative exemplary embodiment, the first connection portion 311 and the clamping portion 312 extend toward opposite sides of the transition portion 313, respectively.

It should be noted that, in the present embodiment, the first connection portion 311 and the clamping portion 312 extend toward two opposite sides of the transition portion 313, that is, the first connection portion 311, the transition portion 313 and the clamping portion 312 are connected to form a "Z" structure, so that the first connection portion 311 has a larger connection plane with the battery cell 100, and the first connection portion 311 is firmly connected with the battery cell 100.

It should be noted that, the clamping portion 312 is parallel to the first connecting portion 311, and the first connecting portion 311 and the clamping portion 312 extend toward two opposite sides of the transition portion 313, so that the clamping portion 312 is less prone to interference of the first connecting portion 311 and the battery cell 100 when connected to the second connecting member 320, and further ensures convenience of connection.

It can be understood that the first connection portion 311 is parallel to the clamping portion 312, and two connection manners exist, one of which is that the first connection portion 311, the transition portion 313 and the clamping portion 312 form a "Z" structure in the embodiment of the present application. Alternatively, the first connection portion 311, the transition portion 313 and the engagement portion 312 form a "U" structure, that is, the first connection portion 311 and the engagement portion 312 extend toward the same side of the transition portion 313. The first connecting portion 311 and the clamping portion 312 extend towards two opposite sides of the transition portion 313 respectively, that is to say, the first connecting portion 311, the transition portion 313 and the clamping portion 312 are connected to form a zigzag structure, so that interference of the battery cell 100 and the first connecting portion 311 can be avoided, and connection between the clamping portion 312 and the second connecting portion 321 is smoother.

In an alternative exemplary embodiment, the second connector 320 includes a second connection portion 321 and a cover portion 322, and the cover portion 322 is connected with the second connection portion 321 to form a receiving groove for receiving the first connector 310; the receiving groove has an opening 323 at one end, and the first connector 310 is disposed in the receiving groove through the opening 323.

In particular, in the present embodiment, the second connector 320 includes a second connection portion 321 and a cover portion 322, where the cover portion 322 is connected to the second connection portion 321 to form a receiving groove for receiving the first connector 310; the receiving groove has an opening 323 at one end, and the first connector 310 is disposed in the receiving groove through the opening 323. During the installation process, the first connecting piece 310 extends into the accommodating groove from the opening 323 and is placed in the accommodating groove, so that the first connecting piece 310 and the second connecting piece 320 are connected. When the first connector 310 and the second connector 320 need to be separated, the first connector 310 and the second connector 320 can be separated by withdrawing the first connector 310 toward the opening 323 until the first connector 310 is separated from the accommodating groove. So configured, separation or installation of the first connector 310 and the second connector 320 is facilitated.

In an alternative exemplary embodiment, the cover part 322 is provided with a clamping hole 324 communicated with the accommodating groove, and the first connector 310 is provided with clamping teeth 316 matched with the clamping hole 324 in shape; the first connecting piece 310 is slidably connected in the accommodating groove, and the latch 316 is clamped in the latch hole 324.

In particular, in the present embodiment, a latch hole 324 that communicates with the accommodating groove is provided in the housing portion 322, and a latch 316 that matches the shape of the latch hole 324 is provided on the first connector 310; when the first connector 310 is slid into the receiving groove and mounted in place, the latch 316 is engaged in the latch hole 324, i.e. the latch 316 protrudes from the latch hole 324. By this arrangement, the movable range of the latch 316 is limited to the inside of the latch hole 324, so as to prevent the latch 316 from swinging in the latch hole 324, thereby affecting the connection stability of the first connector 310 and the second connector 320.

Illustratively, the latch 316 protrudes on the surface of the first connection portion 311 of the first connection member 310 and has a hemispherical shape. The latch hole 324 is provided as a circular hole with a size corresponding to the latch 316, so as to further ensure the stability of the connection between the latch 316 and the latch hole 324.

It is to be understood that the shape of the latch 316 is not limited to a hemispherical shape, and in other embodiments, the latch may be configured as a triangular prism or a trapezoidal prism according to the actual requirement of the user, or may have other suitable shapes, and the shape of the corresponding latch hole 324 is also adaptively configured as a triangular hole or a quadrilateral hole, or may have other suitable shapes.

In an alternative exemplary embodiment, the cover portion 322 is provided with a guide opening 325, the guide opening 325 being provided at an edge of the cover portion 322 adjacent to the opening 323; the edge shape of the guide opening 325 matches the shape of the latch 316; the guide opening 325 extends toward the card hole 324.

In the present embodiment, the first connector 310 is disposed at an end of the battery cell 100, and the second connector 320 is disposed on the printed circuit board 200. The first connection part 311 of the first connection member 310 is connected to the battery cell 100, and the second connection part 321 of the second connection member 320 is connected to the printed circuit board 200, specifically, the first connection part 311 is fixedly connected to the battery cell 100, and may be welded; the second connection portion 321 is fixedly connected to the printed circuit board 200, and may be soldered. By the arrangement, the connection stability of the first connection part 311 and the battery cell 100 can be ensured, and the unstable connection of the battery cell 100 and the printed circuit board 200 caused by the unstable connection of the first connection part 311 and the battery cell 100 can be effectively avoided, so that the poor connection of the battery 10 is caused. Similarly, the connection stability of the second connection portion 321 and the printed circuit board 200 is ensured, and the unstable connection of the battery 100 and the printed circuit board 200 caused by the unstable connection of the second connection portion 321 and the printed circuit board 200 is effectively avoided, so that the poor connection of the battery 10 is caused.

In particular, in the present embodiment, a guide opening 325 is provided in the cover portion 322, and the guide opening 325 is provided at an edge of the cover portion 322 near the opening 323; the edge shape of the guide opening 325 matches the shape of the latch 316; the guiding opening 325 extends toward the direction of the clamping hole 324, that is, the guiding opening 325 can guide the latch 316 to move toward the direction of the clamping hole 324, so that the latch 316 can be smoothly clamped into the clamping hole 324, and the convenience of connecting the latch 316 with the clamping hole 324 is improved.

Illustratively, the edge profile of the guide aperture 325 is arcuate extending toward the latch aperture 324, the arcuate shape being specifically shaped to accommodate the outer surface of the latch 316 having a hemispherical outer surface. Thus, when the latch 316 on the first connector 310 is disposed at the opening 323 of the accommodating groove, the outer surface of the latch 316 corresponds to the edge of the guiding opening 325, so that the latch 316 slides into the accommodating groove along the guiding opening 325, and after sliding in place, the latch 316 is clamped into the clamping hole 324, that is, the latch 316 extends out from the clamping hole 324, so that the outer surface of the latch 316 abuts against the edge of the clamping hole 324, and shaking of the latch 316 is avoided.

Illustratively, the centerline of the guide slot 325 coincides with the centerline of the card aperture 324 along the sliding path of the card teeth 316. It should be noted that the arrangement further defines the travel path of the latch 316 such that the latch 316 slides along the guide slot 325 into the latch aperture 324.

Illustratively, the battery cell 100 includes a laminated battery cell or a wound battery cell.

Illustratively, the cell 100 is provided with a positive tab and a negative tab.

Illustratively, the battery cell 100 includes a plurality of electrode sheets disposed in a stacked manner, the electrode sheets including a first current collector, and a positive tab disposed on the first current collector.

Finally, it should be noted that: the above embodiments are merely for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the various possible combinations are not described further.

Claims

1. A battery, comprising:

the shell is enclosed to form a cavity;

the battery cell is electrically connected with the printed circuit board through the connecting component, and the battery cell is positioned in the cavity;

the connecting assembly comprises a first connecting piece and a second connecting piece which are detachably connected, wherein the first connecting piece is connected with the battery cell, and the second connecting piece is connected with the printed circuit board.

2. The battery of claim 1, wherein the first connector comprises a catch and the second connector comprises a catch that mates with the catch; the first connecting piece and the second connecting piece are elastic conductive pieces.

3. The battery of claim 1, wherein the first connector comprises a first connection portion and a clamping portion connected at an end, the first connection portion is connected with the cell, and the clamping portion is connected with the second connector.

4. The battery of claim 3, wherein the first connecting portion and the clamping portion are both in a sheet-shaped structure, a plane in which the first connecting portion is located and a plane in which the clamping portion is located are disposed at a first included angle, and the clamping portion extends in a direction away from the first connecting portion.

5. The battery of claim 3, wherein the first connector further comprises a transition portion, the first connector and the clamping portion are connected by the transition portion, and the transition portion is disposed at a second included angle with both the first connector and the clamping portion.

6. The battery of claim 5, wherein the transition portion comprises a first arcuate transition section and a second arcuate transition section, wherein two ends of the first arcuate transition section are respectively connected to the first connection portion and the second arcuate transition section, and wherein an end of the second arcuate transition section remote from the first arcuate transition section is connected to the clamping portion.

7. The battery of claim 5, wherein the first connection portion and the snap-fit portion each extend toward opposite sides of the transition portion.

8. The battery according to any one of claims 1 to 7, wherein the second connection member includes a second connection portion and a housing portion, the housing portion being connected with the second connection portion to form a receiving groove for receiving the first connection member; one end of the accommodating groove is provided with an opening, and the first connecting piece is arranged in the accommodating groove through the opening.

9. The battery according to claim 8, wherein the cover case part has a latch hole communicating with the accommodation groove, and the first connecting member is provided with a latch matching the latch hole in shape; the first connecting piece is connected in the accommodating groove in a sliding mode, and the clamping teeth are clamped in the clamping holes.

10. The battery according to claim 9, wherein the cover case portion is provided with a guide opening provided at an edge of the cover case portion near the opening; the edge shape of the guide opening is matched with the shape of the latch; the guide opening extends towards the direction of the clamping hole.

11. The battery according to any one of claims 1 to 7, wherein the cells comprise laminated cells or wound cells.

12. The battery according to any one of claims 1 to 7, wherein the cell is provided with a positive tab and a negative tab.

13. The battery of claim 12, wherein the cell comprises a plurality of stacked electrode tabs including a first current collector, the positive tab being disposed on the first current collector.