CN217062416U - Battery pack wire harness isolation plate and battery pack - Google Patents

Abstract

The utility model relates to the technical field of batteries, a group battery pencil division board and group battery is proposed. This group battery pencil division board includes: the battery pack comprises a plate body and a signal acquisition part embedded in the plate body, wherein the plate body is provided with a placing cavity for fixing a busbar in the battery pack; the signal acquisition part is arranged in an insulating way with the plate body, and at least part of the signal acquisition part is exposed out of the surface of the plate body and is used for being electrically connected with the bus bar. This group battery pencil division board is through integrateing the signal acquisition spare in the board body, can form effective protection to the signal acquisition spare, avoids the signal acquisition spare because of colliding with the damage. Meanwhile, the signal acquisition part is embedded in the plate body, so that the signal acquisition part can be accurately and conveniently connected with the busbar in the corresponding placement cavity, the signal acquisition part is prevented from being overlapped with other structures, voltage and/or temperature signals of the battery are accurately acquired, and the accuracy is improved; on the other hand, the signal acquisition part can be prevented from occupying a larger space independently, so that the space utilization rate in the battery pack is improved.

Description

Group battery pencil division board and group battery

Technical Field

The utility model relates to a battery technology field especially relates to a group battery pencil division board and group battery.

Background

In the existing battery pack, the series-parallel connection form of the batteries is complex, so that the problem of difficulty in setting acquisition branches in the aspect of signal acquisition is solved.

Therefore, how to facilitate the signal acquisition element to acquire the temperature and/or voltage signal of the battery is an urgent technical problem to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a group battery pencil division board and group battery to reduce the signal acquisition degree of difficulty of signal acquisition spare, simultaneously, promote signal acquisition's accuracy.

In order to achieve the above purpose, the utility model provides a following technical scheme:

according to the utility model discloses a first aspect provides a group battery pencil division board, include: the battery pack comprises a plate body and a signal acquisition part embedded in the plate body, wherein the plate body is provided with a placing cavity for fixing a busbar in a battery pack; the signal acquisition part is arranged in an insulating way with the board body, and at least part of the signal acquisition part is exposed out of the surface of the board body and is used for being electrically connected with the bus bar.

In the battery pack wiring harness isolation plate provided by the application, the signal acquisition part is embedded in the plate body and integrally formed with the plate body, and the signal acquisition part and the plate body are arranged in an insulating mode. When using the group battery pencil division board that this application provided, arrange the busbar in the intracavity of placing of board body, and expose the part of signal acquisition spare in the board body and be connected with the busbar to gather the temperature and/or the voltage signal of battery.

It should be noted that, the group battery pencil division board that this application provided can form effective protection to signal acquisition spare through integrateing signal acquisition spare in the board body, avoids signal acquisition spare because of colliding with the damage. Meanwhile, the signal acquisition part is embedded in the plate body, so that on one hand, the signal acquisition part can be accurately and conveniently connected with the busbar in the corresponding placing cavity, the signal acquisition part is prevented from being lapped with other structures, the voltage and/or temperature signals of the battery are accurately acquired, and the accuracy of the signal acquisition part in acquiring the signals is improved; on the other hand, the signal acquisition part can be prevented from occupying a large space independently, other parts are convenient to arrange, and the space utilization rate in the battery pack can be improved.

According to a second aspect of the present application, there is provided a battery pack, comprising the battery pack harness isolation board and the bus bar provided in any of the above technical solutions, wherein the bus bar is placed in the placing cavity of the battery pack harness isolation board, and the part of the signal acquisition part in the battery pack harness isolation board, which is exposed out of the surface of the board body, is electrically connected to the bus bar.

In the group battery that this application provided, the intracavity is placed in to the board body to the busbar, and the part that signal acquisition spare exposes in the board body is connected with the busbar to gather the temperature and/or the voltage signal of battery.

It should be noted that, among the group battery that this application provided, group battery pencil division board can form effective protection to signal acquisition spare through integrateing signal acquisition spare in the edition of books body, avoids signal acquisition spare because of colliding with the damage. Meanwhile, the signal acquisition part is embedded in the plate body, on one hand, the signal acquisition part can be accurately and conveniently connected with the busbar in the corresponding placing cavity, and the signal acquisition part is prevented from being overlapped with other structures, so that the voltage and/or temperature signals of the battery can be accurately acquired, and the accuracy of the signal acquisition part in acquiring the signals is improved; on the other hand, the signal acquisition part can be prevented from occupying a large space independently, other devices are convenient to arrange, and the space utilization rate in the battery pack can be improved.

Drawings

For a better understanding of the present disclosure, reference may be made to the embodiments illustrated in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, the relevant elements or components may be arranged differently as is known in the art. Further, in the drawings, like reference characters designate the same or similar parts throughout the several views. Wherein:

fig. 1 is a schematic structural diagram of a battery pack harness partition board provided in an embodiment of the present application;

fig. 2 is a schematic view of a second structure of a battery harness isolation board provided in an embodiment of the present application;

fig. 3 is a schematic view of a third structure of a battery harness isolation board provided in an embodiment of the present application;

fig. 4 is a schematic diagram of a fourth structure of a battery pack harness isolation plate according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a battery pack provided in an embodiment of the present application.

The reference numerals are illustrated below:

100. a plate body; 110. a body portion; 111. an accommodating space; 120. a filling section; 200. a signal acquisition element; 300. a bus bar; 400. a flexible conductive member.

Detailed Description

The technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present disclosure. The example embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, and it is, therefore, to be understood that various modifications and changes may be made to the example embodiments without departing from the scope of the present disclosure.

In the description of the present disclosure, unless explicitly specified or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the" object or "an" object are also intended to mean one of possibly multiple such objects.

The terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, an electrical connection, or a signal connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood by those skilled in the art as the case may be.

Further, in the description of the present disclosure, it is to be understood that the directional words "upper", "lower", "inner", "outer", etc., which are described in the exemplary embodiments of the present disclosure, are described at the angles shown in the drawings, and should not be construed as limiting the exemplary embodiments of the present disclosure. It will also be understood that, in the context of a connection between one element or feature and another element(s), "on," "under," or "inside" or "outside," it can be directly connected to the other element(s) "on," "under" or "inside" or "outside," or indirectly connected to the other element(s) "on," "under" or "inside" or "outside" through intervening elements.

The embodiment of the application provides a group battery pencil division board. Fig. 1 is a schematic structural diagram of a battery pack harness partition board according to an embodiment of the present application. As shown in fig. 1, the battery pack harness separator includes: the plate comprises a plate body 100 and a signal acquisition part 200 embedded in the plate body 100, wherein the plate body 100 is provided with a placing cavity A for fixing a bus bar 300 in a battery pack; the signal collecting member 200 is insulated from the board body 100, and at least a portion of the signal collecting member 200 is exposed out of the surface of the board body 100 for electrical connection with the bus bar 300.

Specifically, in the battery pack harness isolation plate provided in the embodiment of the present application, the signal collecting element 200 is embedded in the plate body 100 and is integrated with the plate body 100, and the signal collecting element 200 and the plate body 100 are arranged in an insulating manner. When the battery pack harness isolation plate provided by the embodiment of the application is applied, the bus bar 300 can be placed in the placing cavity a of the plate body 100, and the part of the signal acquisition part 200 exposed out of the plate body 100 is connected with the bus bar 300, so as to acquire the temperature and/or voltage signals of the battery.

It should be noted that the battery pack harness isolation board provided by the embodiment of the present application can form effective protection for the signal acquisition part 200 by integrating the signal acquisition part 200 into the board body 100, and avoid the signal acquisition part 200 from being damaged due to collision. Meanwhile, the signal acquisition part 200 is embedded in the plate body 100, so that on one hand, the signal acquisition part 200 can be accurately and conveniently connected with the busbar 300 in the corresponding placing cavity A, and the signal acquisition part 200 is prevented from being overlapped with other structures, so that the voltage and/or temperature signals of the battery can be accurately acquired, and the accuracy of the signal acquisition part 200 in acquiring the signals is improved; on the other hand, the signal acquisition part 200 can be prevented from occupying a large space independently, other devices can be arranged conveniently, and the space utilization rate in the battery pack can be improved.

It should be understood that the bus bar 300 connects at least two batteries to realize series-parallel connection of the batteries, so that the structure formed between the batteries can satisfy the power requirement, and therefore, the temperature and/or voltage signals of the batteries can be collected by connecting the signal collecting member 200 with the bus bar 300.

In one embodiment, the signal collecting member 200 is embedded inside the board body 100.

It should be noted that, the signal collecting element 200 is disposed inside the board body 100, on one hand, the signal collecting element 200 can be better protected, and on the other hand, the single occupied space of the signal collecting element 200 is further reduced, so that the space utilization rate in the battery pack can be improved.

In one embodiment, the plate body 100 is a one-piece structure.

Specifically, please refer to the structure shown in fig. 1, the signal collecting element 200 is pre-embedded inside the board body 100, and the signal collecting element 200 and the board body 100 are integrally formed through a manufacturing process. Illustratively, the board body 100 may be formed by injection molding, in which the signal acquisition part 200 is placed in a semi-synthetic product during the process of preparing the board body 100, and then the injection molding operation is continued to form the board body 100.

It should be noted that, the integrally formed structure can simplify the manufacturing process of the plate body 100 provided in the embodiment of the present application and reduce the manufacturing cost, so that the manufacturing efficiency can be improved and the manufacturing cost can be reduced.

Meanwhile, because the signal acquisition part 200 is fixed in the plate body 100, the signal acquisition part 200 does not shake relative to the plate body 100, and the stability of the connection between the signal acquisition part 200 and other structural parts can be improved, so that the phenomena of welding and the like are avoided, and the service life is prolonged.

In one embodiment, referring to the structure shown in fig. 2, the board body 100 includes a body portion 110 and a filling portion 120, the body portion 110 has a receiving space 111 for receiving the signal collecting element 200; the filling part 120 is filled in the receiving space 111 where the signal collecting member 200 is mounted.

Specifically, when the battery harness partition plate provided in this embodiment is prepared, the signal collecting member 200 may be first placed in the accommodating space 111 of the body portion 110, and then the filling portion 120 may be added to fill the accommodating space 111.

In a specific embodiment, the receiving space 111 may be formed of a groove. Illustratively, as shown in FIG. 2. When the structure shown in fig. 2 is employed, the signal collection member 200 may be directly placed into the accommodation space 111 from the opening of the recess, and then the accommodation space 111 is filled with the filling portion 120.

It should be noted that, by adopting the structural arrangement that the filling portion 120 and the body portion 110 are matched to form the accommodating space 111, the assembly difficulty of the signal collecting part 200 and the board body 100 can be simplified, so that the manufacturing efficiency can be improved, and the manufacturing cost can be reduced.

With continued reference to the structure shown in fig. 2, it should be understood that the volume of the accommodating space 111 formed by the groove is larger than the volume of the signal acquisition part 200, and the signal acquisition part 200 can be easily placed in the accommodating space 111. After the accommodating space 111 is filled with the filling part 120, the signal acquisition part 200 does not shake relative to the end plate body 100, so that the stability of the joint of the signal acquisition part 200 and other structural parts can be improved, the phenomena of welding and the like are avoided, and the service life is prolonged.

It should be noted that, in the above two structures, the signal collecting element 200 is embedded inside the board body 100. Of course, the signal collecting element 200 may be embedded in the surface of the plate body 100, for example, as shown in fig. 3, specifically, a groove may be provided on the surface of the plate body 100, and the signal collecting element 200 may be embedded in the groove, so as to simplify the manufacturing process.

In one embodiment, referring to the structure shown in fig. 4, the signal acquisition element 200 has a first end and a second end, wherein:

the first end of the signal acquisition part 200 is exposed on the surface S1 of the board body 100, and is used for being electrically connected with the bus bar 300;

the second end is on the surface of the board body 100 for connecting with the flexible conductive member 400 in the battery pack, and the second end of the signal collecting member 200 is exposed on the surface S2 of the board body 100, and the surface S2 is opposite to the surface S1.

It should be noted that, a first end of the signal collecting member 200 is connected to the bus bar 300 to collect the temperature and/or voltage signal of the battery, and a second end of the signal collecting member 200 is connected to the flexible conductive member 400 to output the collected signal. It should be understood that flexible conductive member 400 is also connected to external devices to perform the function of deriving the signals within the battery pack. Illustratively, flexible conductive member 400 is coupled to a connector.

In one embodiment, with continued reference to the structure shown in fig. 4, board body 100 is provided with a receiving cavity B for receiving flexible conductive element 400.

It should be noted that flexible conductive piece 400 is made of a flexible material, and flexible conductive piece 400 is placed in accommodating cavity B of board body 100, so that flexible conductive piece 400 can be protected, and flexible conductive piece 400 is prevented from being damaged due to collision in the using process, so as to prolong the service life of flexible conductive piece 400. Similarly, the plate body 100 may support the bus bar 300 to prolong the service life of the bus bar 300, which is not described in detail herein.

In addition, it is worth noting that the bus bar 300 and the flexible conductive member 400 are both disposed on the plate body 100, so as to improve the integration level of the internal structure of the battery pack, facilitate the installation and detachment operations of the internal structure of the battery pack, and simultaneously optimize the internal structure layout of the battery pack and improve the utilization rate of the internal space of the battery pack.

In one embodiment, the signal acquisition element 200 is a nickel plate.

It should be understood that the signal acquisition element 200 in the plate body 100 may be a nickel plate, and may be other structural elements. In a particular embodiment, the signal acquisition element 200 may be provided as a nickel plate. It should be understood that the nickel sheet can realize signal transmission, and the volume of the nickel sheet is smaller, so that the occupied space of the signal acquisition part 200 inside the board body 100 can be reduced, thereby facilitating the board body 100 provided by the embodiment of the present application to perform other structural designs.

It is noted that an insulating structure is required to avoid a short circuit when the bus bar 300 and the signal collection member 200 are mounted on the board body 100.

In one embodiment, the insulating structure may be one or more of an insulating coating, an insulating film, or an insulating tape. It should be noted that the insulating structure may be wrapped on the surface of the board body 100, and may also be wrapped on the surfaces of the bus bar 300 and the signal collecting member 200, which may be specifically configured as required, and will not be described herein again.

In another embodiment, the plate body 100 is made of an insulating material. It should be understood that the plate body 100 may be partially made of an insulating material or may be entirely made of an insulating material. When the plate body 100 is made of an insulating material, the insulating properties between the plate body 100 and the bus bar 300 and between the plate body 100 and the signal collecting member 200 can be improved, and the plate body 100 can also be used as an insulating plate to insulate the battery from other structures.

Illustratively, when the plate body 100 is made of an insulating material, the insulating material may be selected from one or more of PC (polycarbonate), or PP (polypropylene), or a composite material of PC and ABS (acrylonitrile butadiene styrene copolymer).

It should be noted that, referring to the structure shown in fig. 5, due to the capacity requirement of the battery pack, a certain number of cells in the battery pack need to be connected in series and in parallel, and at this time, the bus bar 300 needs to be divided into a plurality of sub-bus bars 300.

In one embodiment, as shown in fig. 5, the plate body 100 is provided with a plurality of sub-placing cavities a, and one sub-bus bar 300 is placed in each sub-placing cavity a, when the plate body 100 is made of an insulating material as a whole, the plate body 100 can perform insulating protection on the sub-bus bar 300 in each placing cavity a, so as to further improve the safety performance of the battery.

In a specific embodiment, the plate body 100 is exposed with one or more signal collecting members 200 at a portion corresponding to the sub-placement cavities a.

Specifically, in order to collect the battery condition inside the battery pack in more detail, a signal collecting element 200 may be pre-embedded at a position corresponding to each sub-placing cavity a, and the signal collecting element 200 is exposed out of the surface of the board body 100 and is configured to be connected with the sub-bus bar 300 in the sub-placing cavity a.

Alternatively, the board body 100 may be provided with a plurality of signal collecting parts 200 embedded in each sub-placement cavity a, and the plurality of signal collecting parts 200 are exposed out of the surface of the board body 100 to be connected with the sub-collecting lines in the sub-placement cavities a.

It should be noted that when a plurality of signal collecting parts 200 are embedded in each sub-placement cavity a, the plurality of signal collecting parts 200 may be all connected to the sub-bus 300, and a part of the signal collecting parts 200 may be selected as spare parts to be used when other signal collecting parts 200 have problems.

In another specific embodiment, the board body 100 is provided with the signal collecting element 200 at a position corresponding to some of the sub-placement cavities a, so as to reasonably arrange the space in the battery pack and improve the space utilization rate.

The embodiment of the application also provides a battery pack. Referring to the structure shown in fig. 5 in conjunction with fig. 1 to 4, the battery pack includes the battery pack wiring harness isolation board provided in any of the above-mentioned technical solutions, and the bus bar 300 is disposed in the placement cavity a of the battery pack wiring harness isolation board, and the portion of the signal acquisition element 200 in the battery pack wiring harness isolation board exposed on the surface of the board body 100 is electrically connected to the bus bar 300.

Specifically, in the battery pack provided in the embodiment of the present application, the bus bar 300 is disposed in the disposing cavity a of the plate body 100, and the portion of the signal collecting member 200 exposed to the plate body 100 is connected to the bus bar 300, so as to collect the temperature and/or voltage signal of the battery.

It should be noted that, in the battery pack provided in the embodiment of the present application, the battery pack harness isolation board can form effective protection for the signal acquisition part 200 by integrating the signal acquisition part 200 into the board body 100, and the signal acquisition part 200 is prevented from being damaged due to collision. Meanwhile, the signal acquisition part 200 is embedded in the plate body 100, so that on one hand, the signal acquisition part 200 can be accurately and conveniently connected with the busbar 300 correspondingly placed in the cavity A, the signal acquisition part 200 is prevented from being lapped with other structures, the voltage and/or temperature signals of the battery are accurately acquired, and the accuracy of the signal acquisition part 200 in acquiring the signals is improved; on the other hand, the signal acquisition part 200 can be prevented from occupying a large space independently, other devices can be arranged conveniently, and the space utilization rate in the battery pack can be improved.

In one embodiment, the battery pack provided by the embodiment of the present application further includes a flexible conductive member 400 disposed in the accommodating portion of the plate body 100; the flexible conductive member 400 is connected to a portion of the signal collecting member 200 exposed from the board body 100, so as to guide out the signal collected by the signal collecting member 200.

Specifically, as shown in fig. 5, flexible conductive member 400 is shown as a Flexible Printed Circuit (FPC). It should be understood that flexible conductive device 400 may also be other flexible structures with signal transmission function, and may be specifically configured according to the requirement, which is not described herein again.

In one embodiment, continuing with the structure illustrated in fig. 4 and 5, the plane of flexible conductive member 400 is not coplanar with the plane of bus bar 300.

It should be noted that, in the battery pack provided in the embodiment of the present application, the signal collecting member 200 and the bus bar 300 are disposed on different planes, so that damage to the signal collecting member 200 caused by deformation or displacement of other structures can be avoided, and thus, the safety performance of the battery pack can be improved.

In one embodiment, the battery pack is a battery module or a battery pack.

The battery module includes a plurality of batteries, and the batteries may be square batteries or cylindrical batteries. When the batteries are square batteries, the battery module can also comprise end plates and side plates, and the end plates and the side plates are used for fixing the plurality of batteries; when the battery is a cylindrical battery, the battery module may further include a bracket, and the battery may be fixed to the bracket.

It should be noted that, in the battery pack provided in the embodiment of the present application, the plate body 100 may integrate a bracket function to fix the battery, so as to further improve the integration of the battery pack and improve the space utilization rate in the battery pack.

The battery pack includes a plurality of batteries and a battery case for fixing the plurality of batteries.

It should be noted that the battery pack includes a plurality of batteries, and the plurality of batteries are disposed in the battery box. Wherein, a plurality of batteries can form and install in the battery box behind the battery module. Or, a plurality of batteries can directly set up in the battery box, need not to pack a plurality of batteries promptly, utilizes the battery box to fix a plurality of batteries.

In one embodiment, each cell within the battery is a cylindrical cell. The battery includes a first electrode terminal and a second electrode terminal.

The first electrode terminal and the second electrode terminal have opposite polarities and are insulated from each other. Specifically, when the first electrode terminal is a positive polarity terminal, the second electrode terminal is a negative polarity terminal, whereas when the first electrode terminal is a negative polarity terminal, the second electrode terminal is a positive polarity terminal.

In one embodiment, the first electrode terminal and the second electrode terminal are both terminals, and the first electrode terminal and the second electrode terminal are located on two opposite sides of the battery along the direction perpendicular to the bus bar 300.

It should be understood that, when the batteries are placed in the battery box body, if the bottom of the battery box body is taken as the bottom surface, each battery can be arranged horizontally or vertically, and the description is omitted here.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and example embodiments be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims. It will be understood that the present disclosure is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the disclosure is limited only by the appended claims.

Claims (11)

1. A battery pack harness spacer, comprising: the battery pack comprises a plate body (100) and a signal acquisition piece (200) embedded in the plate body (100), wherein the plate body (100) is provided with a placing cavity for fixing a bus bar (300) in a battery pack; the signal acquisition part (200) is insulated from the board body (100), and at least part of the signal acquisition part (200) is exposed out of the surface of the board body (100) and is used for being electrically connected with the bus bar (300).

2. The battery pack harness spacer as claimed in claim 1, wherein the signal acquisition member (200) is embedded inside the plate body (100).

3. The battery pack harness partition board according to claim 2, wherein the board body (100) includes a body portion (110) and a filling portion (120), the body portion (110) having an accommodation space (111), the signal collecting member (200) being placed in the accommodation space (111); the filling part (120) is filled in the accommodating space (111) provided with the signal acquisition part (200).

4. The battery pack harness spacer of any of claims 1-3, wherein the signal acquisition member (200) has a first end and a second end, wherein:

the first end is exposed out of the surface of the plate body (100) and is used for being electrically connected with the bus bar (300);

the second end is on the surface of the plate body (100) and is used for connecting with a flexible conductive member (400) in the battery pack.

5. The battery harness spacer of claim 4, wherein the plate body (100) is provided with a receiving cavity for receiving the flexible conductive member (400).

6. The battery pack harness spacer as claimed in any one of claims 1 to 3, wherein the signal acquisition member (200) is a nickel plate.

7. The battery harness separator plate according to any of claims 1-3, wherein the plate body (100) is made of an insulating material.

8. A battery pack characterized by comprising the battery pack harness separator according to any one of claims 1 to 7 and a bus bar (300), wherein the bus bar (300) is placed in the placing cavity of the battery pack harness separator, and the part of the signal acquisition member (200) in the battery pack harness separator exposed on the surface of the plate body (100) is electrically connected to the bus bar (300).

9. The battery according to claim 8, further comprising a flexible conductive member (400) disposed within the receiving portion of the plate body (100); the flexible conductive member (400) is connected with the part of the signal acquisition member (200) exposed out of the board body (100) so as to lead out the signal acquired by the signal acquisition member (200).

10. The battery according to claim 9, wherein the plane of said flexible conductive member (400) is not coplanar with the plane of said busbar (300).

11. The battery according to any one of claims 8-10, further comprising a battery, wherein the battery is a cylindrical battery.

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