CN216120627U

CN216120627U - Power battery

Info

Publication number: CN216120627U
Application number: CN202122330958.5U
Authority: CN
Inventors: 张文华; 唐庆伟; 王道进; 朱建锦; 陶强; 许祥; 许柯; 李筱建; 年汪洋; 吴承建; 徐伟; 汤闻文; 陈家全
Original assignee: Anhui Ruilu Technology Co ltd
Current assignee: Anhui Ruilu Technology Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-03-22
Anticipated expiration: 2031-09-23

Abstract

The utility model provides a power battery, which relates to the field of batteries and comprises an outer shell and a plurality of inner shells arranged in the outer shell, wherein inner cavities are arranged in the inner shells; the batteries are arranged in the inner shell side by side, and the volume of the inner cavity is larger than that of the batteries; a pressure sensor disposed within the internal cavity; the positive end block and the negative end block are arranged at the top of the battery, the positive end block is connected with the positive electrode of the battery, and the negative end block is connected with the negative electrode of the battery; the front end block and the rear end block are arranged on the inner side wall of the shell; the positive end block of one battery is connected with the front end block through a lead wire, and the negative end block of the other battery is connected with the rear end block through a lead wire; between adjacent cells, the negative end block on one cell is connected to the positive end block on the other cell by a wire. And the connecting part is arranged at the top of the inner shell. Through this device, can cut off the power supply of such inflation battery when the battery inflation, effectively reduce the risk of explosion.

Description

Power battery

Technical Field

The utility model relates to the field of batteries, in particular to a power battery.

Background

The battery pack is generally formed by connecting and integrating a plurality of power batteries, when the battery pack is used for a long time, some power batteries in the battery pack can be in an expanded state, particularly when the service life of the batteries is over, the expansion is more obvious, and after the expansion, the original state is difficult to recover.

The applicant found that: when the battery pack is used, if the battery is always swollen, there is a risk of explosion.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of one or more embodiments of the present disclosure is to provide a power battery, so as to solve the technical problem in the prior art that when a battery pack is used, if the battery is always expanded, there is a risk of explosion.

In view of the above objects, one or more embodiments of the present specification provide a power battery including:

the inner shell is internally provided with an inner cavity;

the batteries are arranged in the inner shell side by side, and the volume of the inner cavity is larger than that of the batteries;

a pressure sensor disposed within the internal cavity;

the positive end block and the negative end block are arranged at the top of the battery, the positive end block is connected with the positive electrode of the battery, and the negative end block is connected with the negative electrode of the battery;

the front end block and the rear end block are arranged on the inner side wall of the shell, the front end block is connected with the anode of the electric equipment, and the rear end block is connected with the cathode of the electric equipment;

the positive end block of one battery is connected with the front end block through a lead wire, and the negative end block of the other battery is connected with the rear end block through a lead wire;

between adjacent cells, the negative end block on one cell is connected to the positive end block on the other cell by a wire.

And the connecting part is arranged at the top of the inner shell and is used for electrically connecting the positive terminal block and the negative terminal block on the inner shell when the battery in the inner shell expands.

Further, the inner shell comprises a filler, and the space between the inner side wall of the outer shell and the inner shell is filled with the filler.

Further, the connection portion includes:

the spring is fixedly connected with the lower surface of the connecting plate, the other end of the spring is fixed on the upper surface of the inner shell, and the length of the connecting plate is greater than the distance between the positive end block and the negative end block;

a plurality of first electromagnets fixed in the upper surface of the inner shell.

Furthermore, the device also comprises an insulating block fixed on the connecting plate and second electromagnets fixed inside the insulating block, wherein the first electromagnets correspond to the second electromagnets one by one, and the first electromagnets are positioned right below the corresponding second electromagnets.

Further, the outer shell and the inner shell are both detachable into a plurality of parts.

The utility model has the beneficial effects that: when the power battery is used, when the power battery is normally used, the connecting plate above the power battery is respectively separated from the positive end block and the negative end block, and the power battery normally supplies power; when the battery produces the inflation, will produce the compression to the gas in the cavity, and pressure sensor will sense gas pressure this moment, and when expanding to a certain extent, connecting portion action for positive terminal block and negative terminal block electric connection, like this, this battery will unable power supply, thereby through this device, can be when the battery inflation, cut off the power supply of expanded battery, effectively reduce the risk of explosion.

Drawings

In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.

FIG. 1 is a front cross-sectional view of an embodiment of the present invention;

FIG. 2 is a top view of an outer cylinder and an inner cylinder in an embodiment of the present invention;

FIG. 3 is a side cross-sectional view of an inner cylinder in an embodiment of the present invention.

Wherein, 1, a shell; 2. an inner shell; 3. an inner cavity; 4. a battery; 5. a filler; 6. a front-end block; 7. a rear end block; 9. a connecting plate; 10. a spring; 11. a first electromagnet; 12. an insulating block; 13. a second electromagnet; 14. a pressure sensor; 15. a positive end block; 16. a negative end block.

Detailed Description

For the purposes of this disclosure; technical solutions and advantages will be more clearly understood from the following detailed description of the present disclosure with reference to specific embodiments.

It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. "first" as used in one or more embodiments of the present specification; "second" and similar words do not denote any order; quantity or importance, but merely to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up"; "Down"; "left"; "right" and the like are used only to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may also be changed accordingly.

In view of the above object, a first aspect of the present invention provides an embodiment of a power battery, as shown in fig. 1, 2, and 3, including:

the device comprises an outer shell 1 and a plurality of inner shells 2 arranged in the outer shell 1, wherein inner cavities 3 are arranged in the inner shells 2;

the batteries 4 are arranged in the inner shell 2, the batteries 4 are arranged side by side, and the volume of the inner cavity 3 is larger than that of the batteries 4;

a pressure sensor 14 disposed in the inner chamber 3;

a positive terminal block 15 and a negative terminal block 16 arranged on the top of the battery 4, wherein the positive terminal block 15 is connected with the positive electrode of the battery 4, and the negative terminal block 16 is connected with the negative electrode of the battery 4;

the front end block 6 and the rear end block 7 are arranged on the inner side wall of the shell 1, the front end block 6 is connected with the anode of the electric equipment, and the rear end block 7 is connected with the cathode of the electric equipment;

of the two outermost batteries 4, the positive end block 15 of one battery 4 is connected to the front end block 6 by a lead, and the negative end block 16 of the other battery 4 is connected to the rear end block 7 by a lead;

between the adjacent battery cells 4, the negative end block 16 on one of the battery cells 4 is connected to the positive end block 15 on the other battery cell 4 by a wire.

And a connecting part provided at the top of the inner case 2 for electrically connecting the positive terminal block 15 and the negative terminal block 16 on the inner case 2 when the battery 4 inside the inner case 2 is expanded.

In this embodiment, when the battery 4 is in normal use, the connection plate 9 above the battery 4 is separated from the positive and

negative terminal blocks

15 and 16, respectively, and the battery 4 is normally powered; when the battery 4 expands, the gas in the inner cavity 3 is compressed, the pressure sensor 14 senses the gas pressure, and the connecting part acts to electrically connect the positive terminal block 15 and the negative terminal block 16, so that the battery 4 cannot supply power, and the power supply of the expanded battery 4 can be cut off when the battery 4 expands, thereby effectively reducing the risk of explosion. Here, the pressure sensor 14 may select the cy-yz101 model.

Here, as shown in fig. 1, a filler 5 may be further included, and the space between the inner side wall of the outer case 1 and the inner case 2 is filled with the filler 5, so that when vibration is generated, the vibration of the battery 4 is reduced.

As an embodiment, as shown in fig. 2, the connection part includes:

the connecting plate 9 is arranged right above the inner shell 2, one end of the spring 10 is fixedly connected with the lower surface of the connecting plate 9, the other end of the spring 10 is fixed on the upper surface of the inner shell 2, and the length of the connecting plate 9 is larger than the distance between the positive end block 15 and the negative end block 16;

a plurality of first electromagnets 11 fixed in the upper surface of the inner case 2.

In this embodiment, when the first electromagnet 11 is energized, an attractive force is generated to the connecting plate 9, so that the connecting plate 9 moves downward against the elastic force of the spring 10, and when the connecting plate 9 is connected to the positive terminal block 15 and the negative terminal block 16, respectively, the positive terminal block 15 and the negative terminal block 16 on the inner case 2 are electrically connected.

As an embodiment, as shown in fig. 3, the electromagnetic connector further includes an insulating block 12 fixed to the connecting plate 9 and a second electromagnet 13 fixed inside the insulating block 12, wherein the first electromagnets 11 and the second electromagnets 13 are in one-to-one correspondence, and the first electromagnets 11 are located right below the corresponding second electromagnets 13. Here, when the first electromagnet 11 is energized, the second electromagnet 13 is also energized, and both generate a force of attraction with each other, so that the connection of the connection plate 9 to the positive terminal block 15 and the negative terminal block 16 is further stabilized.

In addition, preferably, the outer casing 1 and the inner casing 2 are each detachable into a plurality of parts, which is more convenient when one or more batteries 4 are expanded and need to be replaced.

It is intended that the embodiment or embodiments of this specification cover all such alternatives as fall within the broad scope of the appended claims; modifications and variations. Accordingly, any omissions may be made that are within the spirit and principles of one or more embodiments of the present description; modifying; equivalents are substituted; modifications, etc. are intended to be included within the scope of the present disclosure.

Claims

1. A power cell, comprising:

the inner shell is internally provided with an inner cavity;

a pressure sensor disposed within the internal cavity;

between adjacent cells, the negative end block on one cell is connected to the positive end block on the other cell by a wire,

2. The power battery as claimed in claim 1, further comprising a filler, wherein the space between the inner side wall of the outer casing and the inner casing is filled with the filler.

3. The power battery as claimed in claim 1, wherein the connecting portion comprises:

4. The power battery according to claim 3, further comprising an insulating block fixed to the connecting plate and a second electromagnet fixed inside the insulating block, wherein the first electromagnets correspond to the second electromagnets one to one, and the first electromagnets are located right below the corresponding second electromagnets.

5. The power cell of claim 1, wherein the outer casing and the inner casing are each separable into a plurality of sections.