CN212011116U

CN212011116U - Battery and electronic device

Info

Publication number: CN212011116U
Application number: CN202020791225.4U
Authority: CN
Inventors: 何永伟; 田鹏; 韦天华; 王华强
Original assignee: Dongguan Nvt Technology Co Ltd
Current assignee: Dongguan Nvt Technology Co Ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-11-24
Anticipated expiration: 2030-05-13

Abstract

The application provides a battery, the battery includes electric core, circuit board and connecting piece, electric core includes utmost point ear, the connecting piece is located on one side that the circuit board was equipped with components and parts, the connecting piece with utmost point ear is connected, utmost point ear buckle and with the range upon range of setting of connecting piece, the connecting piece with utmost point ear range upon range of thickness is greater than the thickness of components and parts on the circuit board. The application still relates to an electronic device who adopts this battery, adopts above-mentioned battery, has increased utmost point ear and the range upon range of thickness of connecting piece through setting up the connecting piece, and thickness is greater than the thickness of components and parts, can receive when assaulting at the battery, effectively protect components and parts.

Description

Battery and electronic device

Technical Field

The present application relates to the field of battery technologies, and in particular, to a battery and an electronic device.

Background

With the rapid development of electronic products, the requirements for batteries are higher and higher during the use process. The capacity of the battery can be improved in various ways, for example, the battery with the folded top seal can save the packaging space, so that more space is provided for the battery core, and the purpose of improving the capacity of the battery is achieved. However, the battery with the folded top seal needs to be placed transversely on the circuit board, and components and parts can be placed outwards, which is different from the traditional mode that the components and parts are vertically placed at the deep pit of the battery core, so that when the battery is used for reliability test, the components and parts can be impacted preferentially to cause falling failure, or when the battery is used practically, if the battery is not protected well, the falling resistance of related battery products is poor, and the battery is very easy to fail.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a battery and an electronic device, which can protect components well during reliability test or in actual use.

A battery, comprising:

a cell comprising a tab;

a circuit board;

the battery further comprises a connecting piece, the connecting piece is arranged on one side of the circuit board, which is provided with components, the connecting piece is connected with the lug, the lug is bent and stacked with the connecting piece, and the connecting piece is thicker than the stacked thickness of the lug on the circuit board.

In at least one embodiment, the connecting member includes a first connecting plate and a second connecting plate which are integrally formed, the first connecting plate and the second connecting plate are arranged in a stacked manner, the second connecting plate is connected with the circuit board, and the first connecting plate is connected with the tab.

In at least one embodiment, the second connecting piece extends to form a convex part towards the first connecting piece, and the convex part is arranged along the length direction or the width direction of the second connecting piece.

In at least one embodiment, a spacer is arranged between the first connecting piece and the second connecting piece or on the side of the first connecting piece facing away from the second connecting piece; the gasket is a foam or silica gel pad.

In at least one embodiment, the connector includes a first connector piece, a second connector piece, and a third connector piece that are integrally formed, and the first connector piece, the second connector piece, and the third connector piece are stacked.

In at least one embodiment, the third connecting piece is located between the first connecting piece and the second connecting piece, the second connecting piece is connected with the circuit board, and the first connecting piece is connected with the tab.

In at least one embodiment, the second connecting piece is located between the first connecting piece and the third connecting piece, the third connecting piece is connected with the circuit board, and the first connecting piece is connected with the tab.

In at least one embodiment, the connecting piece includes a first connecting piece and a gasket, the tab is connected with the circuit board through the first connecting piece, and the gasket is arranged on one side of the tab, which is far away from the first connecting piece.

In at least one embodiment, the gasket is a foam or silicone pad.

An electronic device comprises the battery.

The application provides a battery, through inciting somebody to action utmost point ear buckle and with the connecting piece is range upon range of to be set up, makes utmost point ear with the range upon range of whole thickness of connecting piece is greater than the thickness of components and parts when the battery receives outside impact, can avoid components and parts to receive the impact force earlier to protect components and parts.

Drawings

Fig. 1 is a perspective view of a battery in a first embodiment.

Fig. 2 is a schematic cross-sectional view during the assembly of the battery.

Fig. 3 is a schematic cross-sectional view of the battery shown in fig. 1.

Fig. 4 is a perspective view of the connector of fig. 1.

Fig. 5 is a schematic sectional view of a battery in a second embodiment.

Fig. 6 is a perspective view of the connector of fig. 5.

Fig. 7 is a schematic sectional view of a battery in a third embodiment.

Fig. 8 is a schematic sectional view of a battery in a fourth embodiment.

Fig. 9 is a perspective view of the connector of fig. 8.

Fig. 10 is a perspective view of another connector of fig. 8.

Fig. 11 is a schematic sectional view of a battery in a fifth embodiment.

Fig. 12 is a perspective view of a battery employing another gasket in the fifth embodiment.

Description of the main elements

Battery 100

Battery cell 10

Circuit board 20

Component 21

Tab 30

Connecting piece 40

First connecting piece 41

Second connecting piece 42

Convex part 421

Third connecting piece 43

Mounting member 50

Gasket 60

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

The application provides a battery, the battery includes electric core, circuit board and connecting piece, electric core includes utmost point ear, the connecting piece is located on one side that the circuit board was equipped with components and parts, the connecting piece with utmost point ear is connected, utmost point ear buckle and with the range upon range of setting of connecting piece, the connecting piece with utmost point ear range upon range of thickness is greater than the thickness of components and parts on the circuit board.

By adopting the battery, the lug and the connecting piece are arranged in a laminated mode, so that the overall thickness of the lug and the connecting piece is greater than that of the component, the battery cannot impact the component when being impacted externally, and the component is protected.

In the following, some embodiments of the present application will be described in detail, and features in the following embodiments, that is, embodiments, may be combined with each other without conflict.

First embodiment

Referring to fig. 1, a battery 100 includes a battery cell 10, a circuit board 20, and a connecting member 40, where the battery cell 10 includes a tab 30, the connecting member 40 is disposed on one side of the circuit board 20 where a component 21 is disposed, the connecting member 40 is connected to the tab 30, the tab 30 is bent and stacked with the connecting member 40, and a stacked thickness of the connecting member 40 and the tab 30 is greater than a thickness of the component 21 on the circuit board 20.

Referring to fig. 1, the battery cell 10 is formed by winding or laminating a pole piece and a diaphragm, and in the prior art, the formation of the battery cell 10 is a common technique, and therefore, the details are not repeated herein.

Referring to fig. 2, the circuit board 20 protects the battery 100. The circuit board 20 is provided with a component 21, and further, the component 21 may be a capacitor, a resistor, an MOS transistor, or the like.

Referring to fig. 2, the tab 30 is disposed on one side of the battery cell 10, and the tab 30 and the circuit board 20 are located on the same side of the battery cell 10. When the circuit board 20 and the tab 30 are assembled, the connecting member 40 is connected to the circuit board 20, and then the tab 30 is connected to the connecting member 40. After the connection is completed, the tab 30 and the connecting piece 40 are bent, so that the side of the circuit board 20 provided with the component 21 deviates from the battery cell 10, and then the circuit board 20 is fixedly connected with the battery cell 10.

In this embodiment, the circuit board 20 is fixedly connected to the battery cell 10 through a double-sided tape. It is understood that, in other embodiments, the circuit board 20 may be fixedly connected to the battery cell 10 by other means, for example, the circuit board 20 is fixed to the battery cell 10 by various means such as a bracket, an injection molding process, a glue frame, or welding.

Referring to fig. 3 and 4, the connecting member 40 includes a first connecting piece 41 and a second connecting piece 42 which are integrally formed. Referring to fig. 2, before the connecting member 40 is bent, the first connecting piece 41 and the second connecting piece 42 are arranged substantially vertically. The first connecting piece 41 is connected to the tab 30, and the second connecting piece 42 is connected to the circuit board 20.

After the tab 30 and the connecting piece 40 are bent, the first connecting piece 41 and the second connecting piece 42 are stacked, and one end of the tab 30 connected with the connecting piece 40 is located between the first connecting piece 41 and the second connecting piece 42. That is, the surface of the first connecting plate 41 close to the second connecting plate 42 is connected to the tab 30, and the surface of the second connecting plate 42 away from the first connecting plate 41 is connected to the side of the circuit board 20 where the component 21 is located. Further, the circuit board 20, the tab 30 and the connecting member 40 are fixed by welding, but it should be understood that in other embodiments, the fixing manner is not limited thereto, and screws may be used for fixing.

The second connecting piece 42 has a protrusion 421 extending toward the first connecting piece 41. The protrusion 421 is disposed along the length direction of the second connecting piece 42. Specifically, when the first connecting piece 41 and the second connecting piece 42 are stacked, the protrusion 421 is located between the first connecting piece 41 and the second connecting piece 42, and the tab 30 is located between the protrusion 421 and the first connecting piece 41. In one embodiment, the tab 30 may contact the protrusion 421. In another embodiment, a gap may exist between the tab 30 and the protrusion 421.

In one embodiment, the connecting member 40 is made of a metal material, such as iron, aluminum, nickel, etc. And the convex part 421 on the second connecting piece 42 is formed by punching the connecting piece 40 by a male die during punch forming. It is understood that, in other embodiments, the connecting member 40 can be made of other materials, such as sheet metal, and the protruding portion 421 can be formed by bending a sheet metal jig.

The overall thickness of the tab 30 and the connecting member 40 is increased by the protrusion 421, so that the thickness of the connecting member 40 and the tab 30 is greater than the thickness of the component 21 on the circuit board 20, when a mechanical impact test such as a drop test is performed or in actual use, the end of the battery 100 takes the connecting member 40 as the highest point, the highest point is impacted, and the metal has good impact resistance, so that the component 21 can be prevented from being damaged due to impact of a large force. The second connecting piece 42 is adapted to the connecting member 40 having a long length, so that the protrusion 421 is disposed longer along the length direction of the connecting member 40, and the impact resistance against the outside is enhanced.

Referring again to fig. 1, the battery 100 includes a mounting member 50, and the mounting member 50 extends from the circuit board 20 for connecting with an external device. Specifically, in one embodiment, the mounting member 50 is a gold finger. The battery 100 is drawn out through the mounting member 50 to be connected with other devices. When the battery 100 is used in an electronic device, the battery 100 is electrically connected to a main board of the electronic device through the mounting member 50.

It is understood that in other embodiments, the mount 50 may also be a connector, terminal wire, or the like.

The present application also relates to an electronic device (not shown) comprising a battery 100 as described above for providing electrical energy to the electronic device. Specifically, the electronic device can be a mobile phone, a tablet, a camera, a flashlight, a toy, and the like.

Second embodiment

Referring to fig. 5 and 6, in the second embodiment, the battery 100 is substantially the same as that in the first embodiment except that the convex portion 421 of the second connecting piece 42 is provided in the width direction of the second connecting piece 42.

The second connecting piece 42 is adapted to the connecting member 40 having a wide width so as to be disposed longer along the width direction of the connecting member 40 and to have an enhanced resistance against an external impact force, thereby protecting the component 21 from being damaged.

Third embodiment

Referring to fig. 7, in a third embodiment, the battery 100 is substantially the same as the first embodiment except that a spacer 60 is provided between the first connecting piece 41 and the second connecting piece 42.

When the second connecting piece 42 is disposed on the circuit board 20 more firmly, the protrusion 421 is not disposed, so as to increase the connecting area between the second connecting piece 42 and the circuit board 20. At this time, in order to make the thickness of the tab 30 and the connector 40 larger than that of the component 21, the overall thickness of the tab 30 and the connector 40 is increased by providing the spacer 60 between the second connection piece 42 and the tab 30.

It is understood that, if the second connecting piece 42 extends with the convex portion 421, in order to enable the second connecting piece 42 to be stably arranged on the circuit board 20, the height difference between the convex portion 421 and the circuit board 20 may be adjusted to be slightly smaller than the thickness of the component 21, so as to increase the attaching area of the solder paste.

Meanwhile, in order to protect the component 21, the spacer 60 is further provided between the first connection piece 41 and the second connection piece 42, and the spacer 60 is located on the protrusion 421. It is also possible to increase the overall thickness of the tab 30 and the connector 40, thereby protecting the component 21.

In another embodiment, the spacer 60 can also be provided on the side of the first connecting piece 41 facing away from the second connecting piece 42. The same can increase the overall thickness of the tab 30 and the connection member 40.

In one embodiment, the spacer 60 is foam. It is understood that in other embodiments, the gasket 60 may be replaced by a silicone gasket, and other structures with the same function or effect may also be suitable.

Fourth embodiment

Referring to fig. 8 and 9, in a fourth embodiment, the battery 100 is substantially the same as the first embodiment except that the second connecting piece 42 is not provided with the protrusion 421. And in order to achieve an increase in the overall thickness of the tab 30 and the connection member 40, it is accomplished by increasing the thickness of the connection member 40.

Specifically, the connecting member 40 includes a first connecting piece 41, a second connecting piece 42 and a third connecting piece 43 which are integrally formed, and the first connecting piece 41, the second connecting piece 42 and the third connecting piece 43 are connected in sequence. After the connector 40 is bent, the first connecting piece 41, the second connecting piece 42, and the third connecting piece 43 are stacked.

In one embodiment, the third connecting piece 43 is located between the first connecting piece 41 and the second connecting piece 42, the side of the second connecting piece 42 facing away from the first connecting piece 41 is connected to the circuit board 20, and the first connecting piece 41 is connected to the tab 30.

After the tab 30 and the connecting piece 40 are bent, the tab 30 is located between the third connecting piece 43 and the first connecting piece 41, and is connected to a surface of the first connecting piece 41 close to the second connecting piece 42. The same effect as in the first embodiment can be achieved by bending a plurality of times to increase the overall thickness of the connecting member 40.

Referring to fig. 10, in another embodiment, the second connecting piece 42 is located between the first connecting piece 41 and the third connecting piece 43, the third connecting piece 43 is connected to the circuit board 20, and the first connecting piece 41 is connected to the tab 30.

After the tab 30 and the connecting piece 40 are bent, the tab 30 is located between the second connecting piece 42 and the first connecting piece 41, and is connected to a surface of the first connecting piece 41 close to the second connecting piece 42. This manner can also achieve the same effect as in the first embodiment.

Fifth embodiment

Referring to fig. 11, in a fifth embodiment, the battery 100 is substantially the same as the first embodiment except that the connection member 40 includes a first connection piece 41 and a spacer 60. The tab 30 is connected to the circuit board 20 via the first connection tab 41, and the spacer 60 is disposed on a side of the tab 30 facing away from the first connection tab 41.

By providing the first connection piece 41 and the spacer 60 at the same time, the overall thickness of the tab 30 and the connection member 40 can also be increased. This manner can also achieve the same effect as in the first embodiment. Since the battery cell 10 is usually provided with two tabs 30, in an embodiment, each tab 30 is provided with one gasket 60.

Referring to fig. 12, it is understood that in other embodiments, the spacer 60 may be replaced by a larger structure, so that one spacer 60 may be used to simultaneously locate two tabs 30.

As in the third embodiment, the spacer 60 is foam. It is understood that in other embodiments, the gasket 60 may be replaced by a silicone gasket, and other structures with the same function or effect may also be suitable.

To sum up, provide battery 100 and adopt this battery 100's electronic device in the embodiment of this application, through with utmost point ear 30 with the range upon range of setting of connecting piece 40 increases thickness, makes connecting piece 40 with the range upon range of thickness of utmost point ear 30 is greater than the thickness of components and parts 21 on the circuit board 20 to when battery 100 received the impact, the impact force can not impact components and parts 21 at first, in order to avoid components and parts 21 damage because of receiving the impact of great power. The connecting member 40 in the above embodiments has a simple structure and is easy to operate, the component 21 is protected, the cost is low, and the packaging space is saved.

In addition, those skilled in the art should recognize that the foregoing embodiments are illustrative only, and not limiting, and that appropriate changes and modifications can be made without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A battery, comprising:

a cell comprising a tab;

a circuit board;

the battery is characterized by further comprising a connecting piece, wherein the connecting piece is arranged on one side of the circuit board, which is provided with components, the connecting piece is connected with the lug, the lug is bent and stacked with the connecting piece, and the stacking thickness of the connecting piece and the lug is greater than that of the components on the circuit board.

2. The battery of claim 1, wherein the connector comprises a first connector tab and a second connector tab integrally formed and stacked, the second connector tab being connected to the circuit board, the first connector tab being connected to the tab.

3. The battery according to claim 2, wherein the second connecting piece extends with a convex portion toward the first connecting piece, and the convex portion is arranged along a length direction or a width direction of the second connecting piece.

4. The battery of claim 2, wherein a spacer is provided between the first connection tab and the second connection tab or on a side of the first connection tab facing away from the second connection tab; the gasket is a foam or silica gel pad.

5. The battery of claim 1, wherein the connector comprises a first connector tab, a second connector tab, and a third connector tab integrally formed and disposed in a stack.

6. The battery of claim 5, wherein the third connecting tab is located between the first connecting tab and the second connecting tab, the second connecting tab being connected to the circuit board, the first connecting tab being connected to the tab.

7. The battery of claim 5, wherein the second connecting tab is located between the first connecting tab and the third connecting tab, the third connecting tab being connected to the circuit board, the first connecting tab being connected to the tab.

8. The battery of claim 1 wherein said connecting member includes a first connecting tab through which said tab is connected to said circuit board and a spacer disposed on a side of said tab opposite said first connecting tab.

9. The battery of claim 8, wherein the gasket is a foam or silicone gasket.

10. An electronic device characterized in that the electronic device comprises the battery according to any one of claims 1 to 9.