CN212366126U

CN212366126U - Battery with a battery cell

Info

Publication number: CN212366126U
Application number: CN202020775899.5U
Authority: CN
Inventors: 彭芳桂
Original assignee: Dongguan Poweramp Technology Ltd
Current assignee: Dongguan Poweramp Technology Ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2021-01-15
Anticipated expiration: 2030-05-12

Abstract

The application discloses battery includes: a housing provided with an accommodating cavity; the battery cell is arranged in the accommodating cavity; the battery cell is arranged in the holding cavity; the exhaust channel is arranged on the shell or the supporting frame and is communicated with the accommodating cavity and the outside of the shell; and glue is filled in the accommodating cavity. According to the battery, the exhaust channel is arranged on the shell and/or the support frame, so that gas in glue filled in the accommodating cavity of the shell is exhausted out of the shell through the exhaust channel, and the glue filling effect of the battery is improved.

Description

Battery with a battery cell

Technical Field

The present application relates to a battery.

Background

Glue filling can use the structure in the glue fixed battery in the battery, the battery structure of glue filling obtains the wide application, but traditional battery glue filling mode, it is poor to be limited by the mobility of glue, glue flows to the gap in the battery under the effect of self gravity, flow time is long, there is gaseous unable discharge between the bottom of battery and electric core, glue filling effect is unsatisfactory, will form a lot of air cavities after glue solidifies, can't reach the effect of full embedment, lead to the battery at insulating, intensity, can't satisfy the requirement in functions such as fixed.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a battery with good filling effect.

The application provides a battery, includes:

a housing provided with an accommodating cavity;

the battery cell is arranged in the accommodating cavity;

the battery cell is arranged in the holding cavity;

the exhaust channel is arranged on the shell or the supporting frame and is communicated with the accommodating cavity and the outside of the shell;

and glue is filled in the accommodating cavity.

According to some embodiments of the present application, the supporting frame includes a plurality of columns connected to form a plurality of receiving cavities arranged in a plurality of layers;

the accommodating cavity is communicated with the accommodating cavity;

each battery cell is arranged in one accommodating cavity, and the pole lug of each battery cell is positioned outside the accommodating cavity.

According to some embodiments of the present application, the exhaust passage comprises a plurality of first holes;

and the column body is positioned on each layer of the peripheral side of the accommodating cavity and is provided with first holes, and the first holes are respectively communicated with the accommodating cavity and the accommodating cavity.

According to some embodiments of the present application, each side of the circumferential side of each layer of the receiving cavity is provided with at least one of the first holes.

According to some embodiments of the application, the cylinder is a cylindrical structure comprising a cavity, the cavities of two connected cylinders are in communication, and the first hole is in communication with the cavity.

According to some embodiments of the present application, the housing includes a bottom wall and a side wall located on a peripheral side of the bottom wall;

the exhaust passage includes a first groove and a second hole;

the bottom wall is provided with the first groove, and the first groove is communicated with the accommodating cavity;

the side wall is provided with at least one second hole, and the second hole is communicated with the first groove and the outside of the shell.

According to some embodiments of the present application, the first slot comprises a plurality of cross-connected slot cells, the first slot extending to the sidewall.

According to some embodiments of the application, the battery further comprises an adapter plate used for fixing the circuit board, the adapter plate is arranged on the support frame, a limiting portion and a buckling portion are arranged on the adapter plate, the limiting portion can be used for positioning the circuit board, and the buckling portion can be used for fixing the circuit board.

According to some embodiments of the present application, a connection hole or a nut is provided on the adapter plate.

According to some embodiments of the application, a second groove for fixing the copper bar is arranged on the adapter plate.

According to the battery, the exhaust channel is arranged on the shell and/or the support frame, so that gas in glue filled in the accommodating cavity of the shell is exhausted out of the shell through the exhaust channel, and the glue filling effect of the battery is improved.

Drawings

Fig. 1 is a schematic structural diagram of a battery according to an embodiment of the present application.

Fig. 2 is an exploded view of the battery shown in fig. 1.

Fig. 3 is a schematic structural view of the battery shown in fig. 2 with the case removed.

Fig. 4 is a schematic structural diagram of the support frame and the adapter plate in the battery shown in fig. 2.

Fig. 5 is a schematic structural view of a case in the battery shown in fig. 2.

Description of the main elements

Battery 100

Exhaust passage 200

Housing 10

Accommodating cavity 101

Bottom wall 11

First groove 111

Slot unit 1111

Side wall 13

Second hole 131

Battery cell 20

Battery cell body 21

Tab 23

Supporting frame 30

Column 31

First hole 311

Accommodating cavity 301

Cover body 40

Adapter plate 50

Stopper 51

Fastening part 53

Connection hole 55

Nut 57

Second groove 59

Circuit board 60

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

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.

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.

Some embodiments of the present invention provide a battery, including:

a housing provided with an accommodating cavity;

the battery cell is arranged in the accommodating cavity;

the battery cell is arranged in the holding cavity;

and glue is filled in the accommodating cavity.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following embodiments, features of the embodiments may be combined with each other without conflict.

Referring to fig. 1 to 3, some embodiments of the present disclosure provide a battery 100. The battery 100 includes a case 10, a cell 20, a support frame 30, a cover 40, and an exhaust passage 200. The housing 10 is provided with a receiving chamber 101. The battery cell 20 is disposed in the accommodating cavity 101. The supporting frame 30 is disposed in the accommodating cavity 101. The battery cell 20 is disposed on the support frame 30. The accommodating cavity 101 is filled with glue (not shown). The exhaust passage 200 is disposed on the housing 10 and the support frame 30, but is not limited thereto. The exhaust passage 200 communicates the accommodating chamber 101 and the outside of the housing 10. The cover body 40 covers the housing 10 and closes the accommodating cavity 101.

The battery 100 carries out exhaust treatment on the glue in the accommodating cavity 101 in a vacuumizing mode. Specifically, glue is first introduced along the inner wall of the accommodating cavity 101, and the glue is filled until the glue covers the supporting frame 30, and the introduction operation is stopped. The cell 100 without the cover 40 is then placed in a vacuum chamber (not shown), preferably with the temperature in the vacuum chamber raised to a set temperature conducive to glue flow. And vacuumizing the vacuum cavity, after a period of time, discharging the gas in the accommodating cavity 101 out of the shell 10 through the exhaust channel 200 due to negative pressure, and filling the space occupied by the original gas in the accommodating cavity 101 with glue, so that the filling effect of the glue in the accommodating cavity 101 of the battery 100 is improved.

It is understood that in other embodiments, the battery 100 may also oscillate the housing 10, so as to further improve the effect of the gas in the accommodating cavity 101 being exhausted from the housing 10 through the exhaust channel 200.

After the exhaust treatment of the battery 100 is completed, the cover body 40 is covered on the housing 10, so that the cover body 40 and the housing 10 are connected and close the accommodating cavity 101, thereby protecting the structure in the accommodating cavity 101.

Referring to fig. 3 and 4, the supporting frame 30 includes a plurality of columns 31. The columns 31 are connected to form a plurality of receiving cavities 301 arranged in sequence. The accommodating cavity 301 is communicated with the accommodating cavity 101, as shown in fig. 1. Two ends of each column 31 are respectively connected with another column 31, so that the support frame 30 forms a grid structure. Each of the battery cells 20 is disposed in one of the housing cavities 301. The battery cell 20 includes a battery cell body 21 and a tab 23 disposed on one side of the battery cell body 21. The battery cell body 21 is located in the accommodating cavity 301, and the tab 23 is located outside the accommodating cavity 301.

The accommodating cavity 301 of the supporting frame 30 provides a separate mounting area for each battery cell 20, and realizes positioning of the battery cells 20. The support frame 30 effectively partitions the cell body 21 and the tabs 23 of the cell 20. The support frame 30 wraps around the cell body 21 to protect the cell 20. The support frame 30 fixes a plurality of the battery cells 20 into a whole, so that the overall strength of the battery 100 is enhanced, and the strength of the battery 100 against external vibration and impact is improved.

The exhaust passage 200 includes a plurality of first holes 311, at least one second hole 131, and a first groove 111, as shown in fig. 5. The first hole 311 is disposed on the column 31 of the supporting frame 30. The second hole 131 and the first groove 111 are respectively provided on the housing 10.

A plurality of the first holes 311 are disposed at intervals on the column 31 located on the peripheral side of each layer of the accommodating cavity 301. The first hole 311 is respectively communicated with the accommodating cavity 301 and the accommodating cavity 101. The first holes 311 are formed around the battery cells 20 in the accommodating cavity 301, so that gas in glue around each battery cell 20 is discharged out of the accommodating cavity 301 and the accommodating cavity 101 through the first holes 311 under the negative pressure effect.

At least one first hole 311 is disposed on each side of the circumferential side of each layer of the receiving cavity 301. The cell body 21 has a substantially rectangular structure. Each layer of the accommodating cavity 301 is located on each side of six side surfaces of the cell body 21 and is provided with at least one first hole 311, that is, the column 31 located at six positions, namely, the upper, lower, left, right, front and back positions of the cell 20 is provided with at least one first hole 311. The plurality of first holes 311 are arranged around the battery cell 20, so that the effect of exhausting the gas in the accommodating cavity 301 is improved.

The large number of the first holes 311 will improve the effect of discharging the gas in the containing cavity 301. The number of the first holes 311 on each side of the receiving cavity 301 and the distance between two adjacent first holes 311 are set according to the strength of the supporting frame 30, the length of the column 31, the viscosity of the glue, and other factors.

The cylinder 31 is a cylindrical structure including a cavity (not shown). The column 31 may be made of plastic, light metal or high-strength foam. The cavities of the two connected cylinders 31 are in communication. Each of the first holes 311 communicates with the cavity. The gas in each layer of the accommodating cavity 301 flows into the cavity through the first hole 311, and the cavities between the connected columns 31 of the supporting frame 30 are communicated, so that the gas can flow into the cavity of the column 31 and the first hole 311 around each layer of the accommodating cavity 301, thereby promoting the gas to be discharged out of the accommodating cavity 301 through the first hole 311, the first hole 311 on the column 31 at the top layer, and the accommodating cavity 101 through the first holes 311 located at the outer side of the supporting frame 30.

The column 31 has a structure including a cavity, so that the exhaust effect of the battery 100 is improved, and the filling effect of glue in the battery 100 is further improved. It is understood that in other embodiments, the cylinder 31 may omit the cavity.

Referring to fig. 2 and 5, the housing 10 includes a bottom wall 11 and a side wall 13 disposed on a peripheral side of the bottom wall 11. The first groove 111 is disposed on the bottom wall 11. The first slot 111 includes a plurality of cross-connected slot units 1111. The first groove 111 communicates with the accommodating chamber 101. The second hole 131 is disposed on the sidewall 13. The second hole 131 communicates the first groove 111 with the outside of the housing 10. The first groove 111 may collect micro bubbles dispersed in the accommodating chamber 101, and the gas in the accommodating chamber 101 flows into the second hole 131 through the first groove 111 under the negative pressure, and then is discharged out of the accommodating chamber 101 through the second hole 131.

The number of the slot units 1111 is two, each slot unit 1111 is substantially parallel to a diagonal line of the bottom wall 11, and the second hole 131 is provided at an intersection of each two side walls 13, but not limited thereto. For example, in another embodiment, the number of the slot units 1111 may be increased by one, and both ends of the increased slot units 1111 extend to the opposite sidewalls 13, respectively. In other embodiments, the second holes 131 may be disposed at other positions of the side wall 13, and the number of the second holes may be two or other numbers.

The first groove 111 extends to the side wall 13 to improve the range of the first groove 111 covering the bottom wall 11 and improve the reliability of the gas in the accommodating chamber 101 flowing into the first groove 111.

The second hole 131 and the first groove 111 make the housing 10 light in weight.

It is understood that in other embodiments, the exhaust passage 200 may only include the second hole 131 and the first groove 111 provided on the housing 10; or the exhaust passage 200 may include only the plurality of first holes 311 disposed on the support frame 30.

Referring to fig. 2 and 4, the battery 100 further includes an interposer 50 and a circuit board 60. The circuit board 60 is provided with a battery management system. The adapter plate 50 is disposed on the support frame 30. The adapter plate 50 and the support frame 30 are an integral structure, but not limited thereto. It is understood that in other embodiments, the adapter plate 50 may be mounted on the support frame 30 by fasteners. The adapter plate 50 is provided with a limiting part 51 and a buckling part 53. The position limiting portion 51 can position the circuit board 60. The latch 53 can fix the circuit board 60.

The adapter plate 50 is further provided with a connecting hole 55 and a nut 57. The coupling hole 55 and the nut 57 are used to couple other structures (not shown) of the battery 100. It is understood that in other embodiments, the attachment holes 55 and/or the nuts 57 may be omitted.

The adapter plate 50 is provided with a second groove 59 for fixing a copper bar (not shown). It is understood that in other embodiments, the second slot 59 may be omitted or disposed at other positions, depending on the position of the copper bar.

The interposer 50 and/or the support frame 30 are made of a heat dissipation material, so as to improve the heat dissipation effect of the heat dissipation structure in the battery 100, such as the circuit board 60 and the battery cell 20.

In the battery 100, the exhaust passage 200 is arranged on the housing 10 and/or the support frame 30, so that gas in the glue filled in the accommodating cavity 101 of the housing 10 is exhausted out of the housing 10 through the exhaust passage 200, and the glue filling effect of the battery 100 is improved.

Although the present application has been described in detail with reference to preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present application.

Claims

1. A battery, comprising:

a housing provided with an accommodating cavity;

the battery cell is arranged in the accommodating cavity;

it is characterized by also comprising:

the battery cell is arranged in the holding cavity;

and glue is filled in the accommodating cavity.

2. The battery of claim 1, wherein: the support frame comprises a plurality of columns which are connected to form a plurality of accommodating cavities which are sequentially arranged in a multi-layer mode;

the accommodating cavity is communicated with the accommodating cavity;

3. The battery of claim 2, wherein: the exhaust passage includes a plurality of first holes;

every layer accept all sides in chamber set up on the cylinder first hole, first hole communicates respectively accept the chamber with the holding chamber.

4. The battery of claim 3, wherein: every layer every side of accepting the week side of chamber all is provided with at least one first hole.

5. The battery according to any one of claims 3 to 4, wherein: the cylinder is the cylindricality structure including the cavity, two connections the cavity intercommunication of cylinder, first hole intercommunication the cavity.

6. The battery of any of claims 1-4, wherein: the shell comprises a bottom wall and a side wall positioned on the periphery of the bottom wall;

the exhaust passage includes a first groove and a second hole;

7. The battery of claim 6, wherein: the first slot includes a plurality of cross-linked slot cells, the first slot extending to the sidewall.

8. The battery of claim 1, wherein: the battery further comprises an adapter plate used for fixing the circuit board, the adapter plate is arranged on the support frame, a limiting portion and a buckling portion are arranged on the adapter plate, the limiting portion can be used for positioning the circuit board, and the buckling portion can be used for fixing the circuit board.

9. The battery of claim 8, wherein: and the adapter plate is provided with a connecting hole or a nut.

10. The battery of claim 8, wherein: and a second groove for fixing the copper bar is arranged on the adapter plate.