CN214176210U

CN214176210U - Collection device, collection system and consumer

Info

Publication number: CN214176210U
Application number: CN202022620234.XU
Authority: CN
Inventors: 刘小民; 郭鹏亮; 张晓杰
Original assignee: Shenzhen Clou Electronics Co Ltd
Current assignee: Shenzhen Clou Electronics Co Ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-09-10
Anticipated expiration: 2030-11-12

Abstract

The utility model discloses a collection system, include: gather piece, conflux piece and connecting piece. The bus bar is used for connecting electrodes of the battery cells; the connecting piece includes first laminating portion and second laminating portion, and first laminating portion laminates with the collection piece mutually, and second laminating portion laminates with the piece that converges mutually. Through will converging the flow piece and install on the electrode of electric core to utilize the connecting piece to make collection piece and converging flow piece electric connection, saved complicated pencil technology, simplified collection system's installation step, effectively improved production efficiency. The utility model also discloses an acquisition system, included above-mentioned collection system and battery module. The utility model also discloses an consumer, included above-mentioned collection system and battery management system.

Description

Collection device, collection system and consumer

Technical Field

The utility model relates to a battery technology field especially relates to collection system, collection system and consumer.

Background

In order to better manage the battery module, parameters such as voltage and current of the battery module need to be collected and transmitted to a battery management system. In the related art, each collection point needs to be manufactured into a wire harness, and an OT terminal (a round cold-pressed terminal) is connected to a parallel piece, so that the wire harness manufacturing process is complex, and the production efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a collection system can effectively simplify the wiring technology, has improved production efficiency.

The utility model also provides an acquisition system of having above-mentioned collection system.

The utility model also provides an consumer with above-mentioned collection system.

An embodiment of the first aspect of the utility model provides a collection system, include:

collecting parts;

the bus piece is used for being electrically connected with the electrode of the battery cell;

the connecting piece, the connecting piece includes first laminating portion and second laminating portion, first laminating portion with gather a electric connection, second laminating portion with converge a electric connection.

According to the utility model discloses collection system has following technological effect at least:

through will converging the flow piece and install on the electrode of electric core to utilize the connecting piece to make collection piece and converging flow piece electric connection, saved complicated pencil technology, simplified collection system's installation step, effectively improved production efficiency.

According to the utility model discloses a collection system of some embodiments, the confluence piece includes first parallel portion and the parallel portion of second, there is the clearance between first parallel portion and the parallel portion of second, the confluence piece is fixed on the first parallel portion, first parallel portion with the parallel portion of second is used for making a plurality of the electrode is parallelly connected each other.

According to the utility model discloses an acquisition device of some embodiments, the connecting piece still includes the folding portion, the one end of folding portion with first laminating portion is connected, the other end of folding portion with second laminating portion is connected, the folding portion sets up to work as first laminating portion with when second laminating portion keeps away from each other, the deformation can take place for the folding portion.

According to the utility model discloses a collection system of some embodiments, be provided with the holding hole on the piece that converges, the holding hole is located the piece that converges with the electrode department of being connected, the holding hole is used for holding the electrode.

According to the utility model discloses a collection system of some embodiments, it is rigid circuit board to gather the piece.

According to the utility model discloses a collection system of some embodiments, the surface coating of gathering the piece has three proofings lacquer.

According to the utility model discloses a collection system of some embodiments, be provided with on the collection piece and prevent slow-witted hole, prevent slow-witted hole and be used for providing the installation direction of collection piece.

According to the utility model discloses a collection system of some embodiments, the piece that converges is the copper bar.

An embodiment of the second aspect of the utility model provides a collection system, including the battery module and according to the utility model discloses the collection system of the above-mentioned first aspect embodiment, including a plurality of in the battery module electric core, converge with in the battery module the electrode electric connection of electric core.

by adopting the acquisition device, the acquisition precision is ensured, and meanwhile, the installation efficiency of the acquisition system is improved, and further the production efficiency is improved.

An embodiment of the third aspect of the present invention provides an electrical device, including battery management system and according to the utility model discloses the collection system of the above-mentioned embodiment of the second aspect, battery management system with collection system electric connection.

According to the utility model discloses power consumption equipment has following technological effect at least:

through adopting above-mentioned collection system, the consumer can in time acquire the relevant parameter information of battery module, and simplified the equipment step, has effectively improved production efficiency.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a top view of a collection device in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the collection device of FIG. 1 taken along section A-A;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

fig. 4 is a perspective view of a first parallel portion in an embodiment of the present invention;

fig. 5 is a schematic perspective view of a second parallel portion in an embodiment of the present invention.

Reference numerals: the battery comprises a bus bar 100, a first parallel part 110, a second parallel part 120, a containing hole 130, a connecting piece 200, a first attaching part 210, a second attaching part 220, a folding part 230, a collecting piece 300, a fool-proof hole 310, a battery cell 400 and an electrode 410.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

An acquisition apparatus according to an embodiment of the present invention is described below with reference to fig. 1 to 5.

According to the utility model discloses collection device of first aspect embodiment, including gathering piece 300, conflux piece 100 and connecting piece 200. The bus bar 100 is used to electrically connect with the electrodes 410 of the battery cells 400; the connecting member 200 includes a first attaching portion 210 and a second attaching portion 220, the first attaching portion 210 is electrically connected to the collecting member 300, and the second attaching portion 220 is electrically connected to the bus member 100.

Specifically, as shown in fig. 1 to fig. 3, the bus bar 100 may be a copper bar, an aluminum bar, or a copper-clad aluminum bar, the bus bar 100 is connected to the positive electrode or the negative electrode of at least one battery cell 400, and when there are multiple sets of battery cells 400, and the number of each set is multiple, the bus bar 100 can connect the electrodes 410 of the battery cells 400 in each set in parallel according to actual requirements; the collecting member 300 is a PCB (printed circuit board), which may be an FPC (flexible circuit board) or a rigid circuit board, and the collecting member 300 is mounted on the bus bar 100; the connecting piece 200 is a nickel sheet, and includes first laminating portion 210 and second laminating portion 220, wherein the upper surface of first laminating portion 210 and collection piece 300 is laminated mutually, and second laminating portion 220 is then welded on piece 100 that converges through laser welding's mode, and collection device has included a plurality of connecting pieces 200, and each connecting piece 200 dispersion is in each collection point department. It can be understood that, by such a design, the collecting device can realize the electrical connection between the electrode 410 of each cell 400 and the collecting member 300 only by a simple process during installation, thereby simplifying the installation steps and improving the production efficiency.

In some embodiments of the present invention, the bus bar 100 includes a first parallel portion 110 and a second parallel portion 120, a gap exists between the first parallel portion 110 and the second parallel portion 120, the bus bar 100 is fixed on the first parallel portion 110, and the first parallel portion 110 and the second parallel portion 120 are used to connect the plurality of electrodes 410 in parallel with each other.

Specifically, as shown in fig. 4 and 5, the bus bar 100 includes a first parallel portion 110 and a second parallel portion 120, and when the lower surface of the collecting member 300 is attached to the upper surface of the bus bar 100, the first parallel portion 110 is disposed under both left and right portions of the collecting member 300, and at this time, the collecting member 300 can be fixed to the first parallel portion 110 (when the number of the first parallel portions 110 is greater than one, the collecting member 300 is fixedly connected to at least one of the first parallel portions 110), and the second parallel portion 120 is disposed under the middle portion of the collecting member 300. There is a gap between the first parallel portion 110 and the second parallel portion 120 to ensure that the two portions do not affect each other, and when there are a plurality of first parallel portions 110 or second parallel portions 120, there is a gap between the first parallel portions 110 or between the second parallel portions 120 to ensure that the two portions do not affect each other. The first parallel connection part 110 and the second parallel connection part 120 are both connected to the electrodes 410 of at least two battery cells 400, and it is understood that the shape and size of the first parallel connection part 110 or the second parallel connection part 120 can be adjusted adaptively according to the actual use requirement, and the requirement is different depending on the size of the battery cell 400 corresponding to the first parallel connection part 110 or the second parallel connection part 120, the number of the electrodes 410 of the battery cell 400 required to be connected in parallel, and the like.

In some embodiments of the present invention, the connection member 200 further includes a folding portion 230, one end of the folding portion 230 is connected to the first attaching portion 210, the other end of the folding portion 230 is connected to the second attaching portion 220, and the folding portion 230 is configured to deform when the first attaching portion 210 and the second attaching portion 220 are away from each other.

In specific use, after electric core 400 live time, the swell phenomenon can appear, make the volume grow of electric core 400, thereby the distance between the electrode 410 of each electric core 400 has been increased, at this in-process, first parallel portion 110 or the second parallel portion 120 that is connected with electric core 400 can take place to remove under electric core 400's drive, thereby make and take place to keep away from each other between second laminating portion 220 and the first laminating portion 210, distance between the two can increase, at the in-process of distance increase, the folding portion 230 of fixing between first laminating portion 210 and second laminating portion 220 can take place to deform.

Specifically, as shown in fig. 3, one end of the folding portion 230 is connected to the first attaching portion 210, and the other end of the folding portion 230 is connected to the second attaching portion 220, and the connection manner may be welding, or the folding portion 230 may be integrally manufactured with the first attaching portion 210 and the second attaching portion 220, and the folding portion 230 has a folded structure, and the shape thereof may be an n-type shape, an m-type shape, or other similar shapes. It can be understood that when the first attaching portion 210 and the second attaching portion 220 are far away from each other, the folding portion 230 can be deformed due to the characteristics of the folding structure, and the deformation can be flexible deformation or elastic deformation. In the deformation process, first laminating portion 210 and second laminating portion 220 electric connection all the time, when electric core 400 took place to swell promptly, the inside circuit of collection system switched on also can be guaranteed in the design of connecting piece 200 to make collection system still can normally work, effectively prolonged collection system's life, reduced later stage cost of maintenance.

In some embodiments of the present invention, the collecting bar 100 is provided with a containing hole 130, the containing hole 130 is located at the connecting position of the collecting bar 100 and the electrode 410, and the containing hole 130 is used for containing the electrode 410.

Specifically, as shown in fig. 4 and 5, the accommodating hole 130 is disposed on the bus bar 100, and may be in the form of a groove or a through hole, and the size of the accommodating hole 130 is adapted to the size of the electrode 410 contacted by the bus bar 100 at that position, that is, when the bus bar 100 is contacted with the battery cell 400, the electrode 410 of the battery cell 400 can be placed in the corresponding accommodating hole 130, and it can be understood that such a design protects the electrode 410 while ensuring that the electrode 410 of the battery cell 400 can be contacted with the bus bar 100.

In some embodiments of the present invention, the collecting member 300 is a rigid circuit board.

Specifically, the collecting member 300 is a rigid circuit board, which may be FR-4 (epoxy glass fiber board) or CEM-1/3 (glass fiber and paper composite collecting member 300), and the like, and the characteristic of the rigid circuit board makes the collecting member 300 not bend or flex, thereby ensuring that the collecting member 300 can always be attached to the bus member 100, and not affecting the fixation of the connecting member 200, meanwhile, compared with the complicated processing and manufacturing flow of FPC and the expensive price, the rigid circuit board is adopted as the collecting member 300, which effectively saves the production time and reduces the production cost.

In some embodiments of the present invention, the surface of the collecting member 300 is coated with a three-proofing paint.

Specifically, the surface of the collecting member 300 is coated with conformal coating, and the conformal coating becomes a transparent protective film after being cured, so that the collecting member has excellent insulating, moisture-proof, anti-creeping, shockproof, dustproof, anti-corrosion, anti-aging, corona-resistant and other performances. By using the three-proofing paint, the influence of dust in the environment on the acquisition result is effectively avoided, and the acquisition accuracy of the acquisition device is optimized; meanwhile, the protective film formed after the three-proofing paint is cured ensures that the acquisition device can still normally work in severe environment, the application range of the acquisition device is expanded, and the service life of the acquisition device is prolonged.

In some embodiments of the present invention, the collection member 300 is provided with a fool-proof hole 310, and the fool-proof hole 310 is used for providing the installation direction of the collection member 300.

Specifically, as shown in fig. 1, one or more through holes, namely, the fool-proof hole 310, are provided on the collecting member 300, and during the installation of the collecting member 300, the fool-proof hole 310 can play a fool-proof role, so that the process of installing the collecting member 300 on the bus bar 100 is optimized. In addition, the fool-proof hole 310 can be engaged with a fastener to secure the acquisition member 300 to the bus bar 100.

In some embodiments of the present invention, the bus bar 100 is a copper bar.

Specifically, the bus bar 100 is a copper bar, which has high mechanical properties, and the shape of the copper bar can be adjusted adaptively according to the actual conditions of the battery cells 400, such as the number and the distance, and the copper bar has more excellent conductivity compared with the aluminum bar, so that the process of collecting the current and the voltage of the battery cells 400 is optimized, and the service life of the collecting device is prolonged due to the excellent corrosion resistance of the copper bar.

According to the utility model discloses collection system of second aspect embodiment, include according to the utility model discloses collection system and battery module of above-mentioned first aspect embodiment include a plurality of electric cores 400 in the battery module, converge piece 100 and the electrode 410 electric connection of the electric core 400 in the battery module.

Specifically, the collection system includes the collection device in the above first aspect embodiment, and a battery module, the battery module includes a plurality of battery cells 400, and the collecting piece 100 in the collection system is installed on the top of the battery module and connected to the electrodes 410 of the battery cells 400, so as to achieve electrical connection between the collection device and the battery module. By adopting the acquisition device, the acquisition precision is ensured, and meanwhile, the installation efficiency of the acquisition system is improved, and further the production efficiency is improved.

According to the utility model discloses consumer of third aspect embodiment, including battery management system and according to the utility model discloses the collection system of above-mentioned second aspect embodiment, battery management system and collection system electric connection.

Specifically, the consumer can be electric motor car, precious etc. charges, and it has included above-mentioned collection system to and battery management system, battery management system and collection system pass through electric connection such as wire to make battery management system can gather the electric current or the voltage of battery module. Through adopting above-mentioned collection system, the consumer can in time acquire the relevant parameter information of battery module, and simplified the equipment step, has effectively improved production efficiency.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. Collection system, its characterized in that includes:

collecting parts;

2. The collecting device as claimed in claim 1, wherein the bus bar includes a first parallel portion and a second parallel portion with a gap therebetween, the bus bar being fixed to the first parallel portion, the first parallel portion and the second parallel portion being for connecting the plurality of electrodes in parallel with each other.

3. The collection device of claim 1, wherein the connector further comprises a fold, one end of the fold being connected to the first attachment portion and the other end of the fold being connected to the second attachment portion, the fold configured to deform when the first and second attachment portions are moved away from each other.

4. The collecting device as claimed in claim 1, wherein the collecting member is provided with a receiving hole at a position where the collecting member is connected with the electrode, and the receiving hole is used for receiving the electrode.

5. The collection device of claim 1, wherein the collection member is a rigid circuit board.

6. The collection device of claim 5, wherein a surface of the collection member is coated with a tri-proof paint.

7. The collecting device as claimed in claim 1, wherein the collecting member is provided with a fool-proof hole for providing a mounting direction of the collecting member.

8. The collection device of claim 1, wherein the bus bar is a copper bar.

9. The collection system is characterized by comprising a battery module and the collection device of any one of claims 1 to 8, wherein the battery module comprises a plurality of battery cells, and the junction piece is electrically connected with electrodes of the battery cells in the battery module.

10. The powered device, comprising a battery management system and the collection system of claim 9, wherein the battery management system is electrically connected to the collection system.