CN220138393U

CN220138393U - Battery cell

Info

Publication number: CN220138393U
Application number: CN202321385644.8U
Authority: CN
Inventors: 李秋平; 朱鹏翔; 陈贤阳; 孙飞
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-12-05
Anticipated expiration: 2033-05-30

Abstract

The present utility model provides a battery comprising: the core bag is provided with a lug; the shell is provided with a containing cavity for containing the core bag, and the side wall of the shell is provided with a first mounting hole communicated with the containing cavity; a pole mounted to the first mounting hole; the connecting piece is positioned in the accommodating cavity, one end of the connecting piece is connected with the electrode lug, and the other end of the connecting piece is connected with the electrode post; and the processing module is installed on the connecting sheet and is configured to process the parameter data of the battery. Through setting up the processing module in the acceping chamber of casing for the processing module need not occupy the outside space of battery, simultaneously because the casing can play the guard action to the processing module, need not to set up protective housing for the processing module any more, very big saving space and material, thereby improved among the correlation technique, the chip processes electric core relevant parameter outside the battery casing, need occupy most space, and still need increase protective housing, very big extravagant space and material's technical problem.

Description

Battery cell

Technical Field

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

Background

The lithium battery has the advantages of small volume, high energy density, long service life, environmental protection and the like, and is widely applied to industries such as automobiles, electronic products, energy storage systems and the like. In the related art, the chip is arranged outside the battery shell to process the relevant parameters of the battery cell, but the battery cell occupies most space outside the battery cell, and a protective shell is additionally arranged outside the battery cell, so that space and materials are wasted greatly.

Disclosure of Invention

The embodiment of the utility model provides a battery, which can improve the technical problems that related parameters of a battery core are processed by arranging a chip outside a battery shell, a large part of space is required to be occupied, a protective shell is required to be added, and space and materials are wasted greatly.

An embodiment of the present utility model provides a battery including:

the core bag is provided with a lug;

the shell is provided with an accommodating cavity, and the core is wrapped in the accommodating cavity;

the connecting piece is positioned in the accommodating cavity, one end of the connecting piece is connected with the electrode lug, and the other end of the connecting piece is connected with the electrode post;

and the processing module is installed on the connecting sheet and is configured to process the parameter data of the battery.

In an embodiment, the connecting piece is provided with a fixing opening, the battery further comprises a first fixing piece, and the first fixing piece comprises:

a first fixing part connected to the processing module;

one end of the first extending part is connected to one end of the first fixing part, which is away from the core bag, and the other end of the first extending part penetrates through the fixing opening;

the first abutting part is connected to the other end of the first extending part and extends outwards from the outer side surface of the first extending part, and abuts against one end of the connecting sheet, which is away from the core bag.

In one embodiment, the battery further includes a second fixture, the second fixture including:

the second fixing part is connected with one end of the processing module, which faces the core bag;

the second extension part is connected to one side of the second fixing part, extends from one side of the second fixing part towards a direction away from the processing module and is connected to one end of the connecting sheet towards the core bag.

In an embodiment, the battery further comprises a collection element located within the receiving cavity and in communication with the processing module, the collection element configured to obtain the parameter data of the battery.

In an embodiment, the acquisition member comprises at least one of a pressure sensor and a temperature sensor.

In an embodiment, the connecting piece includes a mounting portion, a first connecting portion and a second connecting portion, the first connecting portion is located at one side of the mounting portion and is connected with the tab, the second connecting portion is located at the other side of the mounting portion and is connected with the post, and the processing module is mounted on the mounting portion.

In an embodiment, the pole is provided with a mounting groove, and a part of the second connecting part is arranged in the mounting groove.

In an embodiment, the housing is further provided with a second mounting hole communicated with the accommodating cavity, the battery further comprises a connection assembly, the connection assembly is mounted in the second mounting hole, and the connection assembly is configured to transmit data of the processing module to the outside of the housing.

In one embodiment, the connection assembly includes a connection terminal positioned within the second mounting hole and communicatively coupled to the processing module.

In an embodiment, the connecting assembly further comprises a mounting member and a sealing member, the mounting member is mounted on the housing and provided with an opening communicated with the second mounting hole, the connecting terminal is located in the opening, and the sealing member is filled between the connecting terminal and the side wall of the opening.

The embodiment of the utility model has the beneficial effects that:

in the embodiment of the utility model, the processing module is arranged in the accommodating cavity of the shell, so that the processing module does not occupy the space outside the battery, meanwhile, the shell can protect the processing module, and a protective shell is not required to be arranged for the processing module, so that the space and materials are greatly saved, the technical problems that in the related technology, the related parameters of the chip processing battery core are arranged outside the battery shell, most of the space is occupied, the protective shell is required to be additionally arranged, and the space and materials are greatly wasted are solved. Meanwhile, as the processing module is positioned in the shell, the path for transmitting the parameter data to the processing module is shortened, the loss of data transmission is reduced, and the data error is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a battery according to an embodiment of the present utility model;

fig. 2 is a schematic view of a battery according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a cover plate according to an embodiment of the present utility model;

FIG. 4 is a schematic structural view of a connecting piece according to an embodiment of the present utility model;

FIG. 5 is a schematic structural view of a connecting piece and a first fixing piece according to an embodiment of the present utility model;

FIG. 6 is a schematic structural view of a connecting piece according to an embodiment of the present utility model;

FIG. 7 is a schematic structural view of a connecting piece and a second fixing piece according to an embodiment of the present utility model;

FIG. 8 is a schematic structural view of a first fixing member according to an embodiment of the present utility model;

FIG. 9 is a schematic structural view of a first fixing member according to an embodiment of the present utility model;

FIG. 10 is a schematic structural view of a second fixing member according to an embodiment of the present utility model;

FIG. 11 is a schematic structural view of a second fixing member according to an embodiment of the present utility model;

fig. 12 is a schematic structural view of a connection terminal according to an embodiment of the present utility model;

fig. 13 is a schematic structural view of a connection terminal according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.

As shown in fig. 1, 2 and 3, an embodiment of the present utility model provides a battery including a core pack 114, a case, a post 115, a connection piece 103 and a process module 105.

The housing is provided with a receiving cavity for receiving the core pack 114, and a first mounting hole (not shown) communicating with the receiving cavity is formed in a side wall of the housing. The pole 115 is mounted to the first mounting hole. The connecting piece 103 is located in the accommodating cavity. One end of the connecting piece 103 is connected with the tab of the core pack 114, and the other end of the connecting piece 103 is connected with the pole 115 to electrically connect the core pack 114 with the tab.

The processing module 105 is located in the receiving cavity of the housing and is mounted on the connection piece 103. The processing module 105 is configured to process parameter data of the battery. The parameter data includes at least temperature data of the core pack 114, pressure data of the gas in the housing, and the like. It will be appreciated that since the processing module 105 is located within the receiving cavity of the housing, the housing also protects the processing module 105 without taking up space outside the housing, and the parameter data transmission path is reduced, thereby reducing data errors.

In this embodiment, the processing module 105 is disposed in the accommodating cavity of the housing, so that the processing module 105 does not occupy a space outside the battery, and meanwhile, since the housing can protect the processing module 105, a protective housing is not required to be disposed for the processing module 105, so that space and materials are greatly saved, and in the related art, related parameters of a chip processing battery core are required to occupy a large part of space outside the battery housing, and a protective housing is also required to be added, so that the technical problems of space and materials are greatly wasted are solved. Meanwhile, as the processing module 105 is positioned in the shell, the path for transmitting the parameter data to the processing module 105 is shortened, the loss of data transmission is reduced, and the data error is reduced.

In one embodiment, the battery includes a core pack 114, a housing, a post 115, a connecting tab 103, a processing module 105, and a first fixture 104. The housing is provided with a housing cavity for housing the core pack 114, and a first mounting hole communicated with the housing cavity is formed in the side wall of the housing. The pole 115 is mounted to the first mounting hole. The processing module 105 is located within the receiving cavity of the housing. The processing module 105 is configured to process parameter data of the battery including at least temperature data of the core pack 114, pressure data of the gas inside the housing, and the like. The connecting piece 103 is located in the accommodating cavity. One end of the connecting piece 103 is connected with the tab of the core pack 114, and the other end of the connecting piece 103 is connected with the pole 115 to electrically connect the core pack 114 with the tab. The connecting piece 103 is further provided with a fixing opening 1035.

As shown in fig. 10 and 11, the first fixing member 104 includes a first fixing portion 1041, a first extending portion 1042, and a first abutting portion 1043. The first fixing portion 1041 is fixedly connected to the processing module 105. One end of the first extension 1042 is connected to one end of the first fixing portion 1041 facing away from the core pack 114, and the other end of the first extension 1042 extends from the one end of the first fixing portion 1041 and passes through the fixing opening 1035. The first abutting portion 1043 is connected to the other end of the first extension 1042. The first abutting portion 1043 further extends outwards from the outer side surface of the first extending portion 1042 so as to abut against an end of the connecting piece 103 facing away from the core pack 114. Through the above arrangement, the first fixing portion 1041 is fixedly connected with the processing module 105, and the first abutting portion 1043 is connected with one end of the connecting piece 103 away from the core pack 114, so that the first fixing portion 1041, the first extending portion 1042 and the first abutting portion 1043 form a reverse buckle structure, and further the processing module 105 is fixed on the connecting piece 103.

In some embodiments, the first fixing portion 1041 is fixedly connected to the core pack 114, and the first abutting portion 1043 is fixedly connected to the connecting piece 103. The material of the first fixing member 104 includes a hot melt adhesive or the like, which can flow when heated, and forms a solid adhesive after cooling.

In some embodiments, the first fixing portion 1041 wraps around the process module 105, that is, the first fixing portion 1041 extends along the surface of the process module 105 until it completely covers the surface of the process module 105. Of course, the first fixing portion 1041 may cover only a part of the surface of the processing module 105, and in this case, the first fixing portion 1041 may be adhesive according to the requirement. By disposing the first fixing portion 1041 so as to entirely cover the surface of the process module 105, the first fixing portion 1041 can stably fix the process module 105.

In some embodiments, the first fixing portion 1041, the first extending portion 1042, and the first abutting portion 1043 are integrally formed. In some embodiments, the first fixing portion 1041, the first extending portion 1042, and the first abutting portion 1043 are integrally formed by injection molding, specifically, the first fixing member 104 is injection molded through the fixing hole.

In some embodiments, when the fixing opening 1035 is elongated, the abutment portion 1043 is also correspondingly shaped, as shown in fig. 8 and 9.

As shown in fig. 4, 5, 6, and 7, in some embodiments, the connecting piece 103 includes a mounting portion 1033, a first connecting portion 1031, and a second connecting portion 1032. The first connection portion 1031 is located at one side of the mounting portion 1033, and the first connection portion 1031 extends from one side of the mounting portion 1033 toward the tab and is electrically connected to the tab. It will be appreciated that the battery has positive and negative poles and the core pack 114 has positive and negative lugs so that the tabs 103 are provided in a number matching the number and are distributed at corresponding positions. This is a conventional technical means for those skilled in the art, and will not be described in detail herein. In some embodiments, the battery includes two core packs 114, and the two core packs 114 are disposed in the receiving cavity in parallel. The connecting piece 103 includes two first connecting portions 1031, the two first connecting portions 1031 are connected to one side of the mounting portion 1033, and the two first connecting portions 1031 are disposed opposite to each other. The mounting portion 1033 and the two first connecting portions 1031 enclose a concave structure. The two first connection portions 1031 are respectively connected to the tabs of the two core packages 114. It will be appreciated that such an arrangement allows for a saving of material for the connection pad 103.

The second connection portion 1032 is connected to the other side of the mounting portion 1033, and the second connection portion 1032 extends from the mounting portion 1033 toward the pole 115 and is electrically connected to the pole 115. In some embodiments, the pole 115 is provided with a mounting slot (not shown) and the second connection 1032 is provided with a boss 1034. The protruding portion 1034 is installed in the installation groove, so that the second connection portion 1032 is limited by the installation groove and the protruding portion 1034, and the contact area between the second connection portion 1032 and the pole 115 is larger, so as to ensure the electrical connection effect of the two.

The mounting portion 1033 is provided with the fixing opening 1035. The first fixing portion 1041 wraps the processing module 105, one end of the first extending portion 1042 is connected to one end of the first fixing portion 1041 facing away from the core pack 114, and the other end of the first extending portion 1042 extends from the one end of the first fixing portion 1041 and passes through the fixing opening 1035. The first abutting portion 1043 is connected to the other end of the first extension 1042. The first abutting portion 1043 further extends outwards from the outer side surface of the first extending portion 1042 so as to abut against an end of the connecting piece 103 facing away from the core pack 114. By the above arrangement, the processing module 105 is fixed to the mounting portion 1033 in the connection member, so that the stability of the processing module 105 is improved without affecting the connection between the connection piece 103 and the tab and the post 115.

In some embodiments, the processing module 105 includes a chip having at least the functionality to process the pressure data and the temperature data. In view of the above-mentioned needs, those skilled in the art can select a chip having this function, and thus the model of the chip is not particularly limited by the present utility model.

In some embodiments, the housing includes a case 101 and a cover plate 102, the case 101 is provided with the accommodating cavity, the cover plate 102 is covered on the case 101, the cover plate 102 is provided with the first mounting hole, and the pole 115 is fixed in the first mounting hole. In some embodiments, the cover plate 102 is further provided with a filling hole 112, an explosion-proof valve 111, etc.

The embodiment of the utility model also provides a battery, which comprises a core pack 114, a shell, a pole 115, a connecting sheet 103, a processing module 105 and a second fixing piece 113. The housing is provided with a housing cavity for housing the core pack 114, and a first mounting hole communicated with the housing cavity is formed in the side wall of the housing. The pole 115 is mounted to the first mounting hole. The connecting piece 103 is located in the accommodating cavity. One end of the connecting piece 103 is connected with the tab of the core pack 114, and the other end of the connecting piece 103 is connected with the pole 115 to electrically connect the core pack 114 with the tab. The processing module 105 is located in the receiving cavity of the housing and is mounted on the connection piece 103. The processing module 105 is configured to process parameter data of the battery. The parameter data includes at least temperature data of the core pack 114, pressure data of the gas in the housing, and the like.

As shown in fig. 7, the second fixing member 113 includes a second fixing portion 1131 and a second extending portion 1132, and the second fixing portion 1131 is fixedly connected to an end of the processing module 105 facing the core pack 114. The second extension portion 1132 is connected to one side of the second fixing portion 1131, and the second extension portion 1132 extends from the one side of the second fixing portion 1131 toward a direction away from the processing module 105 and is fixedly connected to an end of the connecting piece 103 toward the core pack 114. It will be appreciated that the process module 105 can be secured to the connection piece 103 by the second securing portion 1131 and the second extension portion 1132.

In some embodiments, the second fixing portion 1131 and the second extending portion 1132 are integrally formed. The second fixing member 113 is an adhesive tape, and the second fixing portion 1131 and the second extending portion 1132 are glued to the processing module 105 and the connecting portion.

In some embodiments, the second fixing member 113 includes two second extending portions 1132. The two second extending portions 1132 are respectively connected to two sides of the second fixing portion 1131.

As shown in fig. 12 and 13, an embodiment of the present utility model further provides a battery including a core pack 114, a housing, a post 115, a connection piece 103, a processing module 105, a collection member 108, and a connection assembly. It should be noted that, since the foregoing embodiments have sufficiently described the respective structures of the present utility model, in the present embodiment, structures which are not described in detail may refer to the foregoing embodiments of the present utility model.

The housing is provided with a housing cavity for housing the core pack 114, and a first mounting hole communicated with the housing cavity is formed in the side wall of the housing. The pole 115 is mounted to the first mounting hole. The connecting piece 103 is located in the accommodating cavity. One end of the connecting piece 103 is connected with the tab of the core pack 114, and the other end of the connecting piece 103 is connected with the pole 115 to electrically connect the core pack 114 with the tab.

The processing module 105 is located in the receiving cavity of the housing and is mounted on the connection piece 103. The processing module 105 is configured to process parameter data of the battery. The parameter data includes at least temperature data of the core pack 114, pressure data of the gas in the housing, and the like.

The collection member 108 is located in the housing cavity and is in communication with the processing module 105, and the collection member 108 is configured to obtain the parameter data of the battery. The acquisition member 108 includes a sensor 1081 and a signal line 1082 that are connected to each other, the sensor 1081 including at least one of a pressure sensor and a temperature sensor, so the parameter data includes at least temperature data of the core pack 114, pressure data of the gas within the housing, and the like. The signal line 1082 is communicatively connected to the sensor 1081 and the processing module 105, respectively, to transmit information collected by the sensor 1081 to the processing module 105 for processing. It is appreciated that since the processing module 105 and the sensor 1081 are both disposed within the housing, the sensor 1081 is capable of accurately monitoring the parameter information of the battery, and the distance between the processing module 105 and the sensor 1081 is reduced, thereby reducing signal loss.

The housing is further provided with a second mounting hole (not shown) communicating with the receiving cavity, and the connection assembly is mounted to the second mounting hole and configured to transmit data of the processing module 105 to the outside of the housing. Specifically, the connection assembly includes a connection terminal 106, a connection wire 107, a fixing member, and a sealing member 110.

The connection terminal 106 is located in the second mounting hole and is in communication connection with the processing module 105 through the connection line 107, and when the external terminal needs to acquire data processed by the processing module 105, the external terminal can be in communication connection with the processing module 105 through the connection terminal 106.

In some embodiments, the communication connection includes an electrical connection and an optical signal connection. The connection terminals 106 and the connection lines 107 are different in type based on the difference in connection type, so the connection terminals 106 and the connection lines 107 include at least optical fibers or metal wires.

The mounting member 109 is mounted to the housing and provided with an opening (not shown) in communication with the second mounting hole, and the connection terminal 106 is positioned in the opening to fix the connection terminal 106 by the mounting member 109. In some embodiments, a plurality of connection terminals 106 are provided, and a plurality of openings are also provided on the mounting member 109, and each connection terminal 106 is located in one of the openings. In some embodiments, the mount 109 is welded to the housing.

In some embodiments, the housing includes a case 101 and a cover plate 102, the case 101 is provided with the accommodating cavity, the cover plate 102 is covered on the case 101, and the pole 115 and the mounting member 109 are both fixed on the cover plate 102. In some embodiments, the cover plate 102 is further provided with a filling hole 112, an explosion-proof valve 111, etc.

The sealing member 110 is filled between the connection terminal 106 and the side wall of the opening to insulate the connection terminal 106 from the side wall of the opening, and seals the opening to prevent the electrolyte inside the case from flowing out of the opening.

The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model, wherein the principles and embodiments of the utility model are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.

Claims

1. A battery, comprising:

the core bag is provided with a lug;

2. The battery of claim 1, wherein the connecting tab is provided with a fixing opening, the battery further comprising a first fixing member, the first fixing member comprising:

a first fixing part connected to the processing module;

3. The battery of claim 1, further comprising a second mount, the second mount comprising:

4. The battery of claim 1, further comprising a collection member positioned within the receiving cavity and in communication with the processing module, the collection member configured to obtain the parameter data of the battery.

5. The battery of claim 4, wherein the acquisition member comprises at least one of a pressure sensor and a temperature sensor.

6. The battery of claim 1, wherein the connection tab includes a mounting portion, a first connection portion and a second connection portion, the first connection portion being located at one side of the mounting portion and connected to the tab, the second connection portion being located at the other side of the mounting portion and connected to the post, the process module being mounted to the mounting portion.

7. The battery of claim 6, wherein the post is provided with a mounting groove, and a portion of the second connection portion is disposed in the mounting groove.

8. The battery of claim 1, wherein the housing further includes a second mounting hole in communication with the receiving cavity, the battery further including a connection assembly mounted to the second mounting hole, the connection assembly configured to transmit data of the process module to an exterior of the housing.

9. The battery of claim 8, wherein the connection assembly includes a connection terminal positioned within the second mounting hole and communicatively coupled to the processing module.

10. The battery of claim 9, wherein the connection assembly further comprises a mounting member mounted to the housing and provided with an aperture in communication with the second mounting hole, the connection terminal being located within the aperture, and a seal member filled between the connection terminal and a sidewall of the aperture.