CN111029498B - Battery module and wiring harness board assembly thereof - Google Patents
Battery module and wiring harness board assembly thereof Download PDFInfo
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- CN111029498B CN111029498B CN201911167106.XA CN201911167106A CN111029498B CN 111029498 B CN111029498 B CN 111029498B CN 201911167106 A CN201911167106 A CN 201911167106A CN 111029498 B CN111029498 B CN 111029498B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to a battery module and a wiring harness board assembly thereof, which can solve the problem of low energy density of a battery pack caused by the fact that positive and negative terminals on the wiring harness board assembly are arranged at two ends of a wiring harness board in the prior art. A wire harness board assembly for connecting battery cells in a battery pack; the wire harness board assembly includes: the device comprises a support plate, a series connection conducting plate, a first lead-out conducting plate and a second lead-out conducting plate; the first lead-out conducting strip is arranged at the first end of the support plate in the y direction; the second lead-out conducting plate comprises a connecting part and a switching part, the connecting part is positioned at the second end of the support plate in the y direction, one end of the switching part, which is back to the connecting part, extends to the first end of the support plate in the y direction, and the connecting parts of the first lead-out conducting plate and the second lead-out conducting plate, which are connected with the external circuit, are positioned at the same side; the connecting part extends along the x direction, the connecting part and the two rows of series-connected conducting strips form a U-shaped structure in a combined mode, and the printed board is arranged in an opening of the U-shaped structure.
Description
Technical Field
The invention relates to a battery module and a wiring harness board assembly thereof.
Background
The wire harness plate assembly is widely applied to the battery module, signals of voltage and temperature can be collected and monitored, indispensable components and parts in the battery module are formed, a conducting bar in the wire harness plate assembly is connected with a wiring end of a battery unit, series connection and parallel connection of the battery unit can be achieved, a positive bus bar and a negative bus bar of the wire harness plate assembly are connected with other battery modules, and series connection and parallel connection of the battery module can be achieved.
Patent application publication No. CN110212125A, application publication No. 2019.09.06, discloses a wire harness board assembly, which includes a wire harness board covering a battery unit, a through conductive bar configured on the wire harness board, and a battery unit conductive bar. The battery unit conducting bar is used for connecting two adjacent battery units in the battery module to realize series connection of the battery units, the switching conducting bar is provided with a battery unit connecting part and a lateral switching part, the battery unit connecting part is used for being connected with the battery units, and the lateral switching part is used for being connected with an output terminal, namely a positive electrode leading-out end and a negative electrode leading-out end, of the module.
In the wiring harness board assembly, two switching conductive bars are arranged, one of the two switching conductive bars is a positive electrode switching conductive bar, the other one is a negative electrode switching conductive bar, and the two switching conductive bars are respectively arranged at two ends of the wiring harness board to realize positive and negative wiring of the wiring harness board assembly. There are also some drawbacks in this harness plate assembly: the terminal is drawn forth as the holistic positive, negative pole of pencil board in the pencil board subassembly, arranges at the end of pencil board length direction both ends, and operating personnel need reserve out positive, negative pole installation, connection space at the end of pencil board subassembly length direction both ends when arranging the battery module that uses this pencil board subassembly, can increase the volume of battery package after arranging like this, reduces the energy density of battery package.
Disclosure of Invention
The invention aims to provide a wiring harness board assembly, which can solve the problem of low energy density of a battery pack caused by the fact that positive and negative terminals on the wiring harness board assembly are arranged at two ends of a wiring harness board in the prior art;
another object of the present invention is to provide a battery module using the wire harness board assembly, which has advantages of compact structure and high energy density.
In order to achieve the purpose, the wire harness board assembly adopts the following technical scheme:
a wire harness board assembly for connecting battery cells in a battery pack;
defining an x direction and a y direction which are perpendicular to each other, wherein the battery pack comprises a plurality of battery units, the arrangement direction of the battery units is the y direction, the positive electrodes and the negative electrodes of the battery units are distributed at intervals along the x direction, and the positive electrode of one of the two adjacent battery units is close to the negative electrode of the other battery unit in the y direction and is arranged along the y direction;
the wire harness board assembly includes:
the battery comprises a supporting plate, a battery pack and a battery pack, wherein the supporting plate is provided with paired electrode mounting positions, and each pair of electrode mounting positions corresponds to the positive/negative electrode positions of the same battery unit;
the series connection conducting strips are arranged on the supporting plate and provided with positive ends and negative ends, and the positive ends and the negative ends of the series connection conducting strips are arranged on the corresponding electrode mounting positions; the positive end and the negative end of the serially connected conducting strips are used for being electrically connected with the positive electrode and the negative electrode of the battery unit;
the two rows of the series connection conducting strips are arranged along the y direction, and the positive end and the negative end of each series connection conducting strip are respectively connected with the positive electrode and the negative electrode of each two adjacent battery units and are used for connecting the two adjacent battery units in series;
the wire harness board assembly further comprises a leading-out conducting plate which is used for being connected with an external circuit;
the lead-out conducting strips comprise a first lead-out conducting strip and a second lead-out conducting strip;
the first lead-out conducting strip is arranged at the first end of the support plate in the y direction;
the second lead-out conducting plate comprises a connecting part and a switching part, and the switching part is connected with the connecting part;
the connecting part is positioned at the second end of the support plate in the y direction, one end of the switching part, which is back to the connecting part, extends to the first end of the support plate in the y direction, and the parts, which are used for realizing the connection with the external circuit, of the first lead-out conducting sheet and the second lead-out conducting sheet are positioned at the same side;
the connecting part extends along the x direction, the connecting part and the two rows of series connection conducting plates form a U-shaped structure in a combined mode, and the printed board is arranged in an opening of the U-shaped structure.
The beneficial effects are that: the first conducting strip of drawing forth comprises coupling part and switching part, switching part can lead to the direction of current transfer with the first conducting strip homonymy of drawing forth, the scheme of the whole homonymy wiring of pencil board subassembly has been realized, the requirement to the battery module, the installation space of pencil board subassembly has been reduced, the volume has been reduced, the battery package has been increased, the energy density of battery module and corresponding product, and utilize and enclose the U-shaped structure who closes formation by connecting portion and two rows of tandem connection conducting strips and hold the printed board, the structure has also further been simplified, space utilization and energy density have been improved.
Furthermore, the printed board is U-shaped, and the opening of the printed board faces to the second end of the support plate in the y direction.
The beneficial effects are that: the printed board of U-shaped utilizes the outline line of U-shaped and connecting portion to concatenate the U-shaped structure that the conducting strip encloses to close and form with two lines and corresponds, has reduced redundant structure's arranging, has simplified the structure to the printed board opening is towards the backup pad at the ascending second end of y, can utilize the printed board to carry out the wiring towards the part of first end and external world, avoids the wiring position to concentrate and produces and walk line structure interference, generate heat too big problem.
Furthermore, the second lead-out conducting plate is L-shaped, the switching part of the second lead-out conducting plate extends along the y direction, and the switching part is tightly attached to one row of the series-connected conducting plates.
The beneficial effects are that: the switching part is arranged by being tightly attached to one row of the series-connected conducting strips, so that a larger space can be reserved on the supporting plate as far as possible, other electrical elements can be installed, the structure is simplified, and the space utilization rate is improved.
Further, a z direction is defined to be perpendicular to both the x direction and the y direction, and the connection portion and the transfer portion of the second extraction conductive sheet are disposed on both sides of the support plate in the z direction.
The beneficial effects are that: the connecting part and the switching part are respectively arranged on two sides of the supporting plate, the second lead-out conducting strips can be installed in the spaces on two sides of the z direction by utilizing the supporting plate, one of the connecting part and the switching part is arranged on the upper surface of the supporting plate, and the other one of the connecting part and the switching part is arranged between the supporting plate and the battery pack, so that the space utilization rate is improved, and the energy density of the battery pack and the energy density of the battery module are increased.
Further, the support plate is provided with a through hole for connecting the connecting portion with the adapting portion in the z direction.
The beneficial effects are that: the connecting part and the switching part are connected in the through hole, so that space waste is avoided, the space utilization rate is improved, and the energy density of the battery pack and the battery module is increased.
In order to achieve the purpose, the battery module adopts the following technical scheme:
the battery module comprises a battery pack and a wiring harness board assembly, wherein the wiring harness board assembly covers the battery pack;
a wire harness board assembly for connecting battery cells in a battery pack;
defining an x direction and a y direction which are vertical to each other, wherein the battery pack comprises a plurality of battery units, the arrangement direction of the battery units is the y direction, the positive electrodes and the negative electrodes of the battery units are distributed at intervals along the x direction, and the positive electrode of one of the two adjacent battery units and the negative electrode of the other battery unit are close to each other in the y direction and are arranged along the y direction;
the wire harness board assembly includes:
the battery comprises a supporting plate, a battery pack and a battery pack, wherein the supporting plate is provided with paired electrode mounting positions, and each pair of electrode mounting positions corresponds to the positive/negative electrode positions of the same battery unit;
the series connection conducting strips are arranged on the supporting plate and provided with positive ends and negative ends, and the positive ends and the negative ends of the series connection conducting strips are arranged on the corresponding electrode mounting positions; the positive end and the negative end of the serially connected conducting strips are used for being electrically connected with the positive electrode and the negative electrode of the battery unit;
two rows of the serially connected conducting plates are arranged along the y direction, and the positive end and the negative end of each serially connected conducting plate are respectively connected with the positive electrode and the negative electrode of each two adjacent battery units and are used for serially connecting the two adjacent battery units;
the wire harness board assembly further comprises a leading-out conducting plate which is used for being connected with an external circuit;
the lead-out conducting strips comprise a first lead-out conducting strip and a second lead-out conducting strip;
the first lead-out conducting strip is arranged at the first end of the support plate in the y direction;
the second lead-out conducting plate comprises a connecting part and a switching part, and the switching part is connected with the connecting part;
the connecting part is positioned at the second end of the support plate in the y direction, one end of the switching part, which is back to the connecting part, extends to the first end of the support plate in the y direction, and the parts, which are used for realizing the connection with the external circuit, of the first lead-out conducting sheet and the second lead-out conducting sheet are positioned at the same side;
the connecting part extends along the x direction, the connecting part and the two rows of series-connected conducting strips form a U-shaped structure in a combined mode, and the printed board is arranged in an opening of the U-shaped structure.
The beneficial effects are that: the first conducting strip of drawing forth comprises coupling part and switching part, switching part can lead to the direction of current transfer to with the first conducting strip homonymy of drawing forth, the scheme of the whole homonymy wiring of pencil board subassembly has been realized, the requirement to the battery module, the installation space of pencil board subassembly has been reduced, the volume has been reduced, the battery package has been increased, the energy density of battery module and corresponding product, and utilize and enclose the U-shaped structure that closes formation by coupling part and two rows of tandem connection conducting strips and hold the printed board, the structure has also been simplified further, space utilization and energy density have been improved.
Furthermore, the printed board is U-shaped, and the opening of the printed board faces to the second end of the support plate in the y direction.
The beneficial effects are that: the printed board of U-shaped utilizes the outline line and the connecting portion of U-shaped to concatenate the conducting strip with two lines and encloses the U-shaped structure that closes formation with enclosing, has reduced arranging of redundant structure, has simplified the structure to the printed board opening is held at the ascending second of y towards the backup pad, can utilize the printed board to carry out the wiring towards the part of first end and external, avoids the wiring position to concentrate and produces the problem of walking the line structure and interfering, generating heat too big.
Furthermore, the second lead-out conducting plate is L-shaped, the switching part of the second lead-out conducting plate extends along the y direction, and the switching part is tightly attached to one row of the series-connected conducting plates.
The beneficial effects are that: the switching part is arranged by being tightly attached to one row of the series-connected conducting strips, so that a larger space can be reserved on the supporting plate as far as possible, other electrical elements can be installed, the structure is simplified, and the space utilization rate is improved.
Further, a z direction is defined to be perpendicular to both the x direction and the y direction, and the connection portion and the relay portion of the second lead-out conductive sheet are disposed on both sides of the support plate in the z direction.
The beneficial effects are that: the connecting part and the switching part are respectively arranged on two sides of the supporting plate, the second lead-out conducting strips can be installed in the spaces on two sides of the z direction by utilizing the supporting plate, one of the connecting part and the switching part is arranged on the upper surface of the supporting plate, and the other one of the connecting part and the switching part is arranged between the supporting plate and the battery pack, so that the space utilization rate is improved, and the energy density of the battery pack and the energy density of the battery module are increased.
Further, the support plate is provided with a through hole for connecting the connecting portion with the adapting portion in the z direction.
The beneficial effects are that: the connecting part and the switching part are connected in the through hole, so that space waste is avoided, the space utilization rate is improved, and the energy density of the battery pack and the battery module is increased.
Drawings
Fig. 1 is a schematic structural view of a battery module in accordance with an embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a wiring board assembly in embodiment 1 of the battery module of the present invention;
fig. 3 is a schematic structural view of a support plate in embodiment 1 of the battery module of the present invention;
fig. 4 is a first perspective view illustrating a conductive sheet arrangement structure in embodiment 1 of a battery module according to the present invention;
fig. 5 is a second perspective view of the conductive sheet arrangement structure in embodiment 1 of the battery module of the present invention;
in the figure:
10-a battery cell; 20-a wiring harness panel assembly;
21-a support plate; 211-a first mounting groove; 212-a second mounting groove; 213-a through hole; 214-a third mounting groove; 215-a fourth mounting groove; 216-jaws; 217-positioning pin; 218-through holes;
22-connecting conducting strips in series;
23-a printed board; 231-positioning holes;
24-a first extraction conductive sheet; 241-a first terminal;
25-a second extraction conductive sheet; 251-a second terminal; 252-a linking moiety; 253-an adapting portion; 254-weld;
26-nickel plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration only, not by way of limitation, i.e., the embodiments described are intended as a selection of the best mode contemplated for carrying out the invention, not as a full mode. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The characteristics and properties of the battery module and the wire harness plate assembly thereof according to the present invention will be described in further detail with reference to the following examples.
Example 1 of the battery module in the present invention: the main components of the battery module are a battery pack and a wiring harness board assembly matched with the battery pack, and the wiring harness board assembly covers the battery pack when in use. As shown in fig. 1, the battery pack is formed by stacking a plurality of battery units 10, each battery unit 10 includes two single batteries, and the positive electrodes or the negative electrodes of the two single batteries are located on the same side, so that the end of the battery unit 10 where the positive electrode of the single battery is located is the positive electrode of the battery unit 10, and the end of the battery unit 10 where the negative electrode of the single battery is located is the negative electrode of the battery unit 10, and when the battery units 10 are connected in series, the positive electrodes and the negative electrodes of the adjacent battery units 10 can be directly connected in series through conductive sheets.
Defining the x direction and the y direction which are perpendicular to each other, the arrangement direction of the battery units 10 is the y direction, the positive electrodes and the negative electrodes of the battery units 10 are distributed at intervals along the x direction, the positive electrode of one of the two adjacent battery units 10 and the negative electrode of the other battery unit 10 are close to each other in the y direction and are arranged along the y direction, namely, the positive electrode of one of the two adjacent battery units 10 and the negative electrode of the other battery unit 10 are close to each other in the y direction and are arranged along the y direction in a mode of 'positive-negative, positive-negative \8230; \ 823030;'. In this embodiment, the y direction is the front-rear direction, the x direction is the left-right direction, and the z direction perpendicular to both the x direction and the y direction is the up-down direction.
The wire harness board assembly 20 mainly includes a support plate 21, a series connection conductive sheet 22 mounted on the support plate 21, a lead-out conductive sheet, and a printed board 23 electrically connected to these two types of conductive sheets. The structure of each part of the harness board assembly 20 will now be described separately.
As shown in fig. 2 and 3, the series-connection conductive sheets 22 on the support plate 21 are disposed on the upward front surface of the support plate 21, and two rows of the series-connection conductive sheets 22 are disposed, each row of the series-connection conductive sheets 22 is disposed along the front-back direction, and the two rows of the series-connection conductive sheets 22 are spaced apart in the left-right direction, so that the positive terminal and the negative terminal of one series-connection conductive sheet 22 are connected to the positive electrode and the negative electrode of two adjacent battery units 10 in the front-back direction, respectively, and the series connection of the left-side electrode and the right-side electrode of the two adjacent batteries is realized. Specifically, the battery unit 10 in this embodiment is formed by connecting two single batteries in parallel, so that one serial conductive sheet 22 has four points for connecting the poles of four single batteries in two adjacent battery units 10.
As shown in fig. 4 and fig. 5, a first end, i.e. the right side, of the one row of the series-connected conducting strips 22 close to the right is provided with a first lead-out conducting strip 24, one end of the first lead-out conducting strip 24 is electrically connected with the battery unit 10, and the other end is a first terminal 241 for connecting with an external circuit.
The lead-out conductive sheet in this embodiment further includes a second lead-out conductive sheet 25 in an L shape, the second lead-out conductive sheet 25 includes a connection portion 252 and a transit portion 253, and the connection portion 252 is disposed at a second end of the series-connected conductive sheets 22 in the right row, that is, at the left side of the series-connected conductive sheets 22 in the right row, and is located on the front surface of the support plate 21. The connection portion 252 has a bar shape, one end of which is connected to the electrode on the right of the corresponding battery cell 10 and extends in a right-to-left manner.
The adapting portion 253 of the second lead-out conductive sheet is arranged on the back surface of the support plate 21, the adapting portion 253 is also in a long strip shape, a row of the tandem conductive sheets 22 close to the left extends along the direction from the front to the back, the end of the adapting portion 253 opposite to the connecting portion 252 finally extends to the right end of the support plate 21 to form a second terminal 251 of the second lead-out conductive sheet 25, and the first terminal and the second terminal 251 are positioned on the same side of the wire harness plate assembly 20.
The left row of the tandem conducting strips 22, the connecting part 252 of the second lead-out conducting strip 25 and the right row of the tandem conducting strips surround a U-shaped structure on the front surface of the supporting plate, a printed board 23 is arranged in an opening of the U-shaped structure, and the printed board 23 used in the embodiment is a flexible printed board and can be bent and curled. The printed board 23 is U-shaped, an opening of the printed board 23 faces to the left side, and a terminal of the printed board 23 connected to the outside is located on the right side of the printed board 23.
The nickel sheet 26 is connected between the printed board 23 and the connecting part 252 of the series connection conducting strip 22, the first lead-out conducting strip 24 and the second lead-out conducting strip 25, the nickel sheet 26 can communicate the conducting strips with the printed board 23, and the printed board 23 can acquire voltage information on the conducting strips.
As shown in fig. 3, the supporting plate 21 is a plastic supporting plate, and plays a role of supporting and fixing the serially connected conducting plates, leading out the conducting plates, and the printed board in the wiring harness board assembly 20. The supporting plate 21 is rectangular as a whole, and a first mounting groove 211 for mounting the series connection conducting strips, a second mounting groove 212 for mounting the printed board 23, a third mounting groove 214 for mounting the first leading-out conducting strip 24, and a fourth mounting groove 215 for mounting the second leading-out conducting strip 25 are formed in the supporting plate 21.
The first mounting grooves 211 are provided in two rows disposed respectively on the left and right sides on the front surface of the support plate 21, the two rows of the first mounting grooves 211 having a space in the left-right direction, and the second mounting grooves 212 for mounting the printed board 23 are provided in the space. The third mounting groove 214 is disposed at a position rearward of the right side of the front surface of the support plate 21, and the fourth mounting groove 215 is composed of two parts spaced in the up-down direction, one part being located forward of the right side of the front surface of the support plate 21, and the other part being disposed at the rear surface of the support plate 21.
In the first mounting groove 211, the third mounting groove 214 and the fourth mounting groove 215, a claw 216 is disposed at the groove wall, and the claw 216 is used to fix the whole or part of the serial conducting strip 22 and the whole or part of the lead-out conducting strip in the corresponding mounting groove. In addition, through holes 213 for forming electrode mounting positions are formed in the bottoms of the first, third, and fourth mounting grooves 211, 214, and 215, and when the battery module is used, the battery pack is positioned below the wire harness assembly 20, and the conductive sheets on the support plate 21 need to be connected to the positive and negative electrodes of the battery cell 10. After the two types of conductive sheets are mounted in the corresponding mounting grooves, the positive and negative terminals of the serial conductive sheet 22 can be connected to the electrodes of the corresponding battery cells 10 through the through holes 213. And the first terminal 241 and the second lead-out conductive sheet 25 are connected to one of the positive and negative electrodes of the battery cell 10, respectively.
A positioning pin 217 is arranged in the second mounting groove 212, a positioning hole 231 matched with the positioning pin 217 is arranged on the printed board 23, and after the printed board 23 is mounted in the second mounting groove 212, accurate positioning is achieved through the second mounting groove 212 and the positioning pin 217.
Since the connection portion 252 and the transit portion 253 of the second lead-out conductive sheet 25 are disposed on the front and rear surfaces of the support plate 21, and the support plate 21 is provided with the through hole 218 at the left side of the support plate 21, the connection portion 252 and the transit portion 253 communicate through the through hole 218, in the present embodiment, the connection portion 252 and the transit portion 253 are of a separate structure, the connection portion 252 and the transit portion 253 are laser-welded at the position of the through hole 218, and the laser moves in a U-shaped manner on the outer surface of the connection portion 252, melting the metal material and fixing the metal material to the transit portion 253. A U-shaped weld 254 is formed on the surface of the connecting portion 252. The connecting portion 252 and the transit portion 253 may be abutted against each other in the passage hole 218 when no welding is performed, or a certain gap may be reserved between the connecting portion 252 and the transit portion 253.
Example 2 of the battery module in the present invention: the difference from the above embodiment is that, in this embodiment, the printed board is square, the square outer contour includes a U-shaped contour line, and the side of the square is electrically connected to the series connection conductive sheet, the first terminal, and the second lead-out conductive sheet, respectively, to acquire the voltage information of the conductive sheets, and is not limited to the scheme of using the U-shaped printed board.
Example 3 of the battery module in the present invention: the difference from the above-described embodiment is that in the present embodiment, the relay portion of the second extraction conductive sheet is arranged in an oblique direction, and the oblique line of the second extraction conductive sheet is realized, without being limited to the arrangement extending in the y direction (front-rear direction).
Example 4 of the battery module in the present invention: the difference from the above embodiment is that in this embodiment, the connection portion and the transfer portion of the second lead-out conductive sheet are located on the front surface of the support plate at the same time, and the connection portion and the transfer portion are not limited to be respectively disposed on both sides of the support plate.
Example 5 of the battery module in the invention: the difference from the above embodiments is that in this embodiment, the connecting portion and the adapting portion are of an integrated structure, or the connecting portion and the adapting portion are of a split structure before assembly, and are connected by using a conductive connecting piece, such as a conductive screw, during assembly.
Example 6 of the battery module in the present invention: the difference from the above embodiment is that in this embodiment, the battery unit may adopt only one single battery, or may adopt a combination of three or more single batteries connected in parallel.
The structure of the wire harness board assembly in the invention is the same as that of the wire harness board assembly in the battery module embodiment, so that the technical problems solved and the technical effects achieved are also the same, and therefore, the detailed description of the wire harness board assembly is not repeated.
The above-mentioned embodiments, the objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A wire harness board assembly for connecting battery cells in a battery pack;
defining an x direction and a y direction which are vertical to each other, wherein the battery pack comprises a plurality of battery units, the arrangement direction of the battery units is the y direction, the positive electrodes and the negative electrodes of the battery units are distributed at intervals along the x direction, and the positive electrode of one of the two adjacent battery units and the negative electrode of the other battery unit are close to each other in the y direction and are arranged along the y direction;
the wire harness board assembly includes:
the battery comprises a supporting plate, a battery pack and a battery pack, wherein the supporting plate is provided with paired electrode mounting positions, and each pair of electrode mounting positions corresponds to the positive/negative electrode positions of the same battery unit;
the series connection conducting strips are arranged on the supporting plate and provided with positive ends and negative ends, and the positive ends and the negative ends of the series connection conducting strips are arranged on the corresponding electrode mounting positions; the positive end and the negative end of the serially connected conducting strips are used for being electrically connected with the positive electrode and the negative electrode of the battery unit;
the two rows of the series connection conducting strips are arranged along the y direction, and the positive end and the negative end of each series connection conducting strip are respectively connected with the positive electrode and the negative electrode of each two adjacent battery units and are used for connecting the two adjacent battery units in series;
the wire harness board assembly further comprises a lead-out conducting plate, and the lead-out conducting plate is used for being connected with an external circuit;
the method is characterized in that:
the lead-out conducting strips comprise a first lead-out conducting strip and a second lead-out conducting strip;
the first lead-out conducting strip is arranged at the first end of the support plate in the y direction;
the second lead-out conducting plate comprises a connecting part and a switching part, and the switching part is connected with the connecting part;
the connecting part is positioned at the second end of the support plate in the y direction, one end of the switching part, which is back to the connecting part, extends to the first end of the support plate in the y direction, and the parts, which are used for realizing the connection with the external circuit, of the first lead-out conducting sheet and the second lead-out conducting sheet are positioned at the same side;
the switching part is close to one of the rows of the series connection conducting strips and extends along the direction from front to back;
the connecting part extends along the x direction, the connecting part and the two rows of series connection conducting sheets form a U-shaped structure in a combined mode, and the printed board is arranged in an opening of the U-shaped structure;
the printed board is U-shaped, the opening of the printed board faces the second end of the support plate in the y direction, the wiring end of the printed board connected with the outside is located at the first end of the printed board in the y direction, and the wiring end is located between the first wiring end of the first lead-out conducting strip connected with the external circuit and the second wiring end of the second lead-out conducting strip connected with the external circuit.
2. The wire harness panel assembly of claim 1, wherein: the second lead-out conducting strip is L-shaped, the switching part of the second lead-out conducting strip is arranged in an extending mode along the y direction, and the switching part is tightly attached to one row of the series-connected conducting strips.
3. The wire harness board assembly according to claim 1 or 2, characterized in that: the z direction is defined to be perpendicular to both the x direction and the y direction, and the connection portion and the transit portion of the second lead-out conductive sheet are disposed on both sides of the support plate in the z direction.
4. The wire harness panel assembly of claim 3, wherein: the support plate is provided with a through hole for connecting the connecting portion with the adapting portion in the z direction.
5. The battery module comprises a battery pack and a wiring harness plate assembly, and the wiring harness plate assembly covers the battery pack;
defining an x direction and a y direction which are perpendicular to each other, wherein the battery pack comprises a plurality of battery units, the arrangement direction of the battery units is the y direction, the positive electrodes and the negative electrodes of the battery units are distributed at intervals along the x direction, and the positive electrode of one of the two adjacent battery units is close to the negative electrode of the other battery unit in the y direction and is arranged along the y direction;
the wire harness board assembly includes:
the battery comprises a supporting plate, a battery pack and a battery pack, wherein the supporting plate is provided with paired electrode mounting positions, and each pair of electrode mounting positions corresponds to the positive/negative electrode positions of the same battery unit;
the series connection conducting strips are arranged on the supporting plate and provided with positive ends and negative ends, and the positive ends and the negative ends of the series connection conducting strips are arranged on the corresponding electrode mounting positions; the positive end and the negative end of the serially connected conducting strips are used for being electrically connected with the positive electrode and the negative electrode of the battery unit;
the two rows of the series connection conducting strips are arranged along the y direction, and the positive end and the negative end of each series connection conducting strip are respectively connected with the positive electrode and the negative electrode of each two adjacent battery units and are used for connecting the two adjacent battery units in series;
the wire harness board assembly further comprises a lead-out conducting plate, and the lead-out conducting plate is used for being connected with an external circuit;
the method is characterized in that:
the lead-out conducting strips comprise a first lead-out conducting strip and a second lead-out conducting strip;
the first lead-out conducting strip is arranged at the first end of the support plate in the y direction;
the second lead-out conducting plate comprises a connecting part and a switching part, and the switching part is connected with the connecting part;
the connecting part is positioned at the second end of the support plate in the y direction, one end of the switching part, which is back to the connecting part, extends to the first end of the support plate in the y direction, and the parts, which are used for realizing the connection with the external circuit, of the first lead-out conducting sheet and the second lead-out conducting sheet are positioned at the same side;
the switching part is close to one of the rows of the series connection conducting strips and extends along the direction from front to back;
the connecting part extends along the x direction, the connecting part and the two rows of series connection conducting sheets form a U-shaped structure in a combined mode, and the printed board is arranged in an opening of the U-shaped structure;
the printed board is U-shaped, the opening of the printed board faces the second end of the support plate in the y direction, the wiring end of the printed board connected with the outside is located at the first end of the printed board in the y direction, and the wiring end is located between the first wiring end of the first lead-out conducting strip connected with the external circuit and the second wiring end of the second lead-out conducting strip connected with the external circuit.
6. The battery module according to claim 5, wherein: the second leading-out conducting plate is L-shaped, the switching part of the second leading-out conducting plate extends along the y direction and is tightly attached to one of the lines of the serially connected conducting plates.
7. The battery module according to claim 5 or 6, wherein: the z direction is defined to be perpendicular to both the x direction and the y direction, and the connection portion and the transit portion of the second lead-out conductive sheet are disposed on both sides of the support plate in the z direction.
8. The battery module according to claim 7, wherein: the support plate is provided with a through hole for connecting the connecting portion with the adapting portion in the z direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911167106.XA CN111029498B (en) | 2019-11-25 | 2019-11-25 | Battery module and wiring harness board assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911167106.XA CN111029498B (en) | 2019-11-25 | 2019-11-25 | Battery module and wiring harness board assembly thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111029498A CN111029498A (en) | 2020-04-17 |
| CN111029498B true CN111029498B (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911167106.XA Active CN111029498B (en) | 2019-11-25 | 2019-11-25 | Battery module and wiring harness board assembly thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208062147U (en) * | 2018-01-31 | 2018-11-06 | 长城汽车股份有限公司 | For the busbar assembly of battery modules, battery pack and electric vehicle |
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2019
- 2019-11-25 CN CN201911167106.XA patent/CN111029498B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208062147U (en) * | 2018-01-31 | 2018-11-06 | 长城汽车股份有限公司 | For the busbar assembly of battery modules, battery pack and electric vehicle |
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| CN111029498A (en) | 2020-04-17 |
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