CN220895794U - Sampling structure, battery module and battery pack - Google Patents

Abstract

The utility model provides a sampling structure, a battery module and a battery pack. The sampling structure comprises: an FPC main body portion; one end of the connecting piece is electrically connected with the FPC main body part, and the other end of the connecting piece is electrically connected with the tab of the battery module; and the first connectors are led out from one side or two sides of the FPC main body part and are used for being spliced with the first connectors of the adjacent sampling structures in the battery pack so as to realize daisy-chain communication between two adjacent slave boards in the battery pack. The utility model solves the problem of complex structure of the battery pack in the prior art.

Description

Sampling structure, battery module and battery pack

Technical Field

The utility model relates to the technical field of new energy batteries, in particular to a sampling structure, a battery module and a battery pack.

Background

Modern society low carbon environmental protection gradually becomes mainstream, new energy battery has been used in daily life more and more, and along with the maturing and updating iteration of production technology, the battery package is diversified more and more, wherein the battery package comprises a plurality of battery modules, and the battery module is also gradually become large-scale along with people's daily demand gradually, the connected mode between the battery modules can influence the performance of battery package to a great extent, most follow the board on market at present concentrate the front portion or the mid portion of arranging at the battery package, during the installation, the battery module is sampled the back through flexible circuit board (FPC), can make the switching through a section pencil and connect FPC and follow the board, perhaps FPC lug connection is on follow the board, through follow extra connector and the pencil on the board and remove the daisy chain signal between the follow board, but use the pencil can increase the structure and take very big space in the above-mentioned connected mode, make battery package structure more complicated.

As described above, the prior art has a problem of complicated structure of the battery pack.

Disclosure of utility model

The utility model mainly aims to provide a sampling structure, a battery module and a battery pack, so as to solve the problem that a battery pack structural member in the prior art is complex.

To achieve the above object, according to one aspect of the present utility model, there is provided a sampling structure comprising: an FPC main body portion; one end of the connecting piece is electrically connected with the FPC main body part, and the other end of the connecting piece is electrically connected with the tab of the battery module; and the first connectors are led out from one side or two sides of the FPC main body part and are used for being spliced with the first connectors of the adjacent sampling structures in the battery pack so as to realize daisy-chain communication between two adjacent slave boards in the battery pack.

Further, the connection part of the first connector and the FPC main body part is an end part of the FPC main body part.

Further, the sampling structure further comprises a second connector which is arranged at the end part of the FPC main body part and is used for being plugged with a slave board corresponding to the battery pack.

Further, the FPC main body part is rectangular, and the connecting piece is a plurality of, and a plurality of connecting pieces are along the length direction interval setting of FPC main body part.

Further, the plurality of connecting pieces are located at two sides of the FPC main body portion and are staggered along the length direction of the FPC main body portion.

According to another aspect of the present utility model, there is provided a battery module including an electrical core, a tab and the above sampling structure, wherein the sampling structure is electrically connected with the electrical core through the tab.

Further, the electric core includes a plurality of battery cells, and a plurality of battery cells are arranged along the length direction of FPC main part.

Further, the plurality of the tabs are arranged on two sides of the FPC main body, and each tab is electrically connected with the positive electrode and the negative electrode of the two adjacent battery monomers respectively.

According to another aspect of the present utility model, there is provided a battery pack including the slave plate and the battery module described above, the battery module and the slave plate being electrically connected by the second connector of the sampling structure.

Further, the battery modules are multiple, the multiple battery modules are arranged at intervals, and the FPC main body parts of sampling structures of two adjacent battery modules are electrically connected through the first connector of the sampling structures.

According to the technical scheme, the sampling structure comprises the FPC main body part, the connecting piece and the first connector, one end of the connecting piece is electrically connected with the FPC main body part, the other end of the connecting piece is electrically connected with the strip of the battery module, the first connector is led out from one side or two sides of the FPC main body part and is used for being plugged with the first connector of the adjacent sampling structure in the battery pack so as to realize daisy-chain communication between two adjacent slave plates in the battery pack, the first connector is led out from the FPC main body part, the FPC main body parts of the adjacent two sampling structures are connected through the first connector, the FPC main body parts are connected with the upper strip of the battery module through the connecting piece, communication signals are collected and then transmitted to the adjacent FPC main body parts through the first connector, and the daisy-chain communication between the adjacent slave plates connected with the FPC main body parts is realized, so that the daisy-chain communication between the slave plates through wire harnesses or additional connectors is omitted, the adverse effects of excessive space and structural members are avoided, and the problem of complex battery pack structural members in the prior art is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic structure of a battery pack in an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

10. An FPC main body portion; 20. a connecting piece; 30. a wafer; 40. a first connector; 50. a slave plate; 60. a battery cell; 70. and a second connector.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that 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 unless otherwise indicated.

In the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present utility model.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

In order to solve the problem of complex structure parts of a battery pack in the prior art, the utility model provides a sampling structure, a battery module and a battery pack.

As shown in fig. 1, the sampling structure includes an FPC main body 10, a connector 20, and a first connector 40. One end of the connector 20 is electrically connected to the FPC body 10, and the other end is electrically connected to the tab 30 of the battery module. The first connectors 40 are led out from one side or both sides of the FPC body 10 for plugging with the first connectors 40 of the adjacent sampling structure in the battery pack to realize daisy-chain communication between the adjacent two slave boards 50 in the battery pack.

Through setting up sampling structure and including FPC main part 10, connecting piece 20 and first connector 40, the one end and the FPC main part 10 electricity of connecting piece 20 are connected, the other end is connected with battery module's tab 30 electricity, first connector 40 draws forth from one side or both sides of FPC main part 10, be used for pegging graft with the first connector 40 of adjacent sampling structure in the battery package, in order to realize the daisy chain communication between two adjacent slave plates 50 in the battery package, draw forth first connector 40 on FPC main part 10 like this, FPC main part 10 of two adjacent sampling structures passes through first connector 40 to be connected, FPC main part 10 passes through connecting piece 20 and battery module's tab 30 to be connected, transfer to adjacent main part 10 through first connector 40 after gathering communication signal, realize the daisy chain communication between the adjacent slave plates 50 that are connected with FPC main part 10, thereby save and carry out the daisy chain communication through pencil or extra connector between the slave plates, avoid space crowding and too much adverse effect of structure, the battery package structure has been simplified.

It can be understood that the first connectors 40 in this embodiment are used to implement the daisy-chain communication between two adjacent slave boards 50, so that the FPC body 10 of the sampling structure located in the middle of the battery pack is led out to two first connectors 40 respectively, and the FPC body 10 of the sampling structure located in the edge of the battery pack is led out to one first connector 40 only. Further, the male and female connectors are inserted between the two inserted first connectors 40, i.e. one first connector 40 is a male connector and the other first connector 40 is a female connector, thereby completing the insertion.

In the present embodiment, the connection between the first connector 40 and the FPC body 10 is an end of the FPC body 10. Specifically, most of the FPC body 10 corresponds to the battery cell of the battery module, and one end portion of the FPC body 10 protrudes out of the battery cell and is electrically connected with the slave plate 50 of the battery pack. Accordingly, the first connector 40 is also electrically connected to the end of the FPC body 10, thereby enabling daisy-chain communication between adjacent slave boards 50.

In the present embodiment, the first connector 40 is soldered to the FPC body 10.

As shown in fig. 1, the sampling structure further includes a second connector 70. The second connector 70 is provided at an end of the FPC body 10 for plugging in the slave board 50 corresponding to the battery pack. It will be appreciated that the second connector 70 is plugged with the slave board 50 by a male and female connector, i.e. if the second connector 70 is a male connector, the corresponding slave board 50 has a female socket; if the second connector 70 is a female connector, the corresponding slave plate 50 has a male socket.

Specifically, the second connector 70 is connected to the FPC body 10 and the slave board 50, so that the transmission distance between the FPC body 10 and the slave board 50 can be shortened compared with the mode of connecting by using a wire harness, and meanwhile, the space occupied by the sampling structure is not increased due to the smaller structural size of the second connector 70, and meanwhile, the hidden trouble that the installation is easy to make mistakes due to the fact that the wire harness is used for connecting is avoided.

In this embodiment, the FPC body 10 has a strip shape, and a plurality of connectors 20 are provided, and the connectors 20 are disposed at intervals along the longitudinal direction of the FPC body 10. Further, the plurality of connectors 20 are located at both sides of the FPC body 10 and are staggered along the length direction of the FPC body 10.

The utility model also provides a battery module, which comprises an electric core, the tabs 30 and the sampling structure, wherein the sampling structure is electrically connected with the electric core through the tabs 30.

Specifically, the tabs 30 are disposed at the top of the battery cell, the sampling structure is connected with the tabs 30 through the connecting members 20, each connecting member 20 corresponds to one tab 30, and in this embodiment, the connecting member 20 is connected with one end of the tab 30.

As shown in fig. 1, the battery cell includes a plurality of battery cells 60, and the plurality of battery cells 60 are arranged along the length direction of the FPC main body 10. Specifically, the FPC body 10 is located at a middle position of the battery cell, the plurality of battery cells 60 are connected in series through the plurality of tabs 30, and the plurality of connectors 20 are located at two sides of the FPC body 10 and are staggered along a length direction of the FPC body 10, so as to be disposed corresponding to the plurality of tabs 30 and electrically connected respectively.

In this embodiment, the number of the tabs 30 is plural, the tabs 30 are located at two sides of the FPC body 10, each tab 30 is electrically connected with the positive and negative electrodes of two adjacent battery cells 60, and at the same time, a heat insulating member is further disposed in a gap between any adjacent battery cells 60, so that heat transfer between the two battery cells 60 can be blocked, flame retardant effect can be achieved when the battery cells 60 burn due to thermal runaway, and a series of battery cells 60 can be prevented from burning, and the specific heat insulating member can be made of a heat insulating foam adhesive material. The heat-insulating foaming adhesive has the advantage of high foaming efficiency, can be used for making the whole battery module lighter, has lower production cost and is convenient to install.

Optionally, the bottom of electric core still can be provided with the condensate plate, reduces the heat production of electric core through the condensate plate, and mode electric core is heated too highly.

Specifically, the battery unit 60 has positive and negative poles, the cross-sectional shape of the battery unit 60 is rectangular, the two ends of the top surface of the battery unit 60 are respectively positive and negative poles, the plurality of battery units 60 are alternately arranged with positive and negative poles as seen along the length direction of the FPC main body 10, the battery units 60 are closely arranged, the number of the battery units 60 can be increased, and meanwhile, the closely arranged battery units 60 generate certain pressure when the battery units 60 are heated and expanded to prevent the battery units 60 from being excessively deformed.

Further, the positive and negative poles of the adjacent two battery monomers 60 are respectively connected with any one of the tabs 30, so that the positive and negative poles of the plurality of battery monomers 60 are communicated, meanwhile, the arrangement mode that the positive poles and the negative poles of the adjacent two battery monomers 60 are on the same straight line can optimize the structure of the tab 30, the situation that the tab 30 is too long and thin to be beneficial to the installation connection of a battery module is avoided, and the short circuit of the positive and negative poles of the same battery monomers 60 is caused by less installation errors, so that the short circuit of the battery module is caused.

The present utility model also provides a battery pack including the slave plate 50 and the above-described battery module, which are electrically connected to each other through the second connector 70 of the sampling structure between the slave plate 50 and the battery module.

Specifically, the projection of the second connector 70 in the vertical direction is located in the projection plane of the slave plate 50 in the vertical direction, that is, the second connector 70 is located at the top end of the slave plate 50.

In this embodiment, a plurality of battery modules are arranged at intervals, and the FPC main body portions 10 of the sampling structures of two adjacent battery modules are electrically connected through the first connector 40 of the sampling structure.

Specifically, any one battery module is correspondingly provided with a slave plate 50, the sampling structures of the battery modules are connected through a first connector 40, signal transmission between the slave plates 50 corresponding to the battery modules is achieved, meanwhile, the battery modules are connected through the first connector 40, the positive electrode of one battery cell 60 at one end of any adjacent battery module is connected with the negative electrode of the battery cell 60 at one end of the other battery module through a tab 30, that is to say, the positive electrode and the negative electrode of the battery cells of the two adjacent battery modules are communicated through the tab 30, and circuit conduction between the battery cells is achieved.

In this embodiment, battery package still includes upper cover, box and tray, is provided with accommodation space in the box, accommodation space and battery module and follow the accommodation chamber of board 50, hold the shape looks adaptation of chamber and battery module and follow board 50, can also be spacing to battery module and follow board 50 when holding battery module and follow board 50, prevent that battery module and follow board 50 from rocking in the box and causing the structure on the battery module to break away from and cause the battery package to become invalid or even short circuit. In order to further limit the battery module and the slave plate 50, the battery module and the slave plate 50 are adhered to the tray through the structural adhesive, and the battery pack is sealed by adopting a clamping or gluing mode between the upper cover and the tray, so that dust and other impurities, even moisture, are prevented from entering the battery pack, and the performance of the battery pack is reduced.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: through setting up sampling structure and including FPC main part 10, connecting piece 20 and first connector 40, the one end and the FPC main part 10 electricity of connecting piece 20 are connected, the other end is connected with battery module's tab 30 electricity, first connector 40 draws forth from one side or both sides of FPC main part 10, be used for pegging graft with the first connector 40 of adjacent sampling structure in the battery package, in order to realize the daisy chain communication between two adjacent slave plates 50 in the battery package, draw forth first connector 40 on FPC main part 10 like this, FPC main part 10 of two adjacent sampling structures passes through first connector 40 to be connected, FPC main part 10 passes through connecting piece 20 and battery module's tab 30 to be connected, transfer to adjacent main part 10 through first connector 40 after gathering communication signal, realize the daisy chain communication between the adjacent slave plates 50 that are connected with FPC main part 10, thereby save and carry out the daisy chain communication through pencil or extra connector between the slave plates, avoid space crowding and too much adverse effect of structure, the battery package structure has been simplified.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A sampling structure, comprising:

An FPC main body (10);

A connecting member (20), wherein one end of the connecting member (20) is electrically connected with the FPC main body part (10), and the other end is electrically connected with a tab (30) of the battery module;

And the first connectors (40) are led out from one side or two sides of the FPC main body part (10) and are used for being plugged with the first connectors (40) of the adjacent sampling structures in the battery pack so as to realize daisy-chain communication between two adjacent slave boards (50) in the battery pack.

2. The sampling structure according to claim 1, wherein the connection of the first connector (40) and the FPC body (10) is an end of the FPC body (10).

3. The sampling structure according to claim 1, further comprising a second connector (70), said second connector (70) being provided at an end of said FPC body (10) for plugging in said slave board (50) corresponding to said battery pack.

4. The sampling structure according to claim 1, wherein the FPC main body portion (10) is elongated, the plurality of connection members (20) are provided, and the plurality of connection members (20) are arranged at intervals along the longitudinal direction of the FPC main body portion (10).

5. The sampling structure according to claim 4, wherein a plurality of the connecting members (20) are located on both sides of the FPC main body portion (10) and are staggered in a longitudinal direction of the FPC main body portion (10).

6. A battery module characterized by comprising an electrical cell, a tab (30) and the sampling structure of any one of claims 1 to 5, said sampling structure being electrically connected to said electrical cell by said tab (30).

7. The battery module according to claim 6, wherein the battery cell includes a plurality of battery cells (60), and the plurality of battery cells (60) are arranged along the length direction of the FPC main body portion (10).

8. The battery module according to claim 7, wherein the number of the tabs (30) is plural, the plural tabs (30) are located at both sides of the FPC main body portion (10), and each tab (30) is electrically connected with the positive and negative electrodes of the adjacent two battery cells (60), respectively.

9. A battery pack comprising a slave plate (50) and a battery module according to any one of claims 6 to 8, the battery module and the slave plate (50) being electrically connected by a second connector (70) of the sampling structure.

10. The battery pack according to claim 9, wherein a plurality of the battery modules are provided at intervals, and the FPC main body portions (10) of the sampling structures of two adjacent battery modules are electrically connected through the first connector (40) of the sampling structure.