CN112259921A - Connecting circuit board of battery module - Google Patents
Connecting circuit board of battery module Download PDFInfo
- Publication number
- CN112259921A CN112259921A CN202011133918.5A CN202011133918A CN112259921A CN 112259921 A CN112259921 A CN 112259921A CN 202011133918 A CN202011133918 A CN 202011133918A CN 112259921 A CN112259921 A CN 112259921A
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- China
- Prior art keywords
- battery module
- circuit board
- lugs
- connection
- lug
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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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0296—Conductive pattern lay-out details not covered by sub groups H05K1/02 - H05K1/0295
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/111—Pads for surface mounting, e.g. lay-out
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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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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a connecting circuit board of a battery module, which comprises a board body, wherein a plurality of tab connecting positions are respectively arranged on two sides of a central line of the board body in the length direction, the tab connecting positions on the same side of the central line are parallel to each other, a conducting plate is arranged on the same side surface of the board body on each tab connecting position, a conducting circuit integrated in the board body is arranged on one side of each conducting plate close to the central line, one end of the conducting circuit is connected with the conducting plate, and the other end of the conducting circuit is converged on a voltage measurement wiring position; a plurality of positioning holes penetrating through the conducting plate and the plate body are arranged on each lug connecting position at intervals; the battery module includes a plurality of parallel superimposed battery cells, and battery cell's both ends set up anodal ear and negative pole ear respectively, and battery module's both ends set up a connecting circuit board respectively.
Description
Technical Field
The invention belongs to the technical field of battery processing, and particularly relates to a connecting circuit board of a battery module.
Background
The lithium cell group is passed through the series connection or the parallel connection of utmost point ear by the polylith battery and is in the same place, the reliability and the convenience of connection are very important, because the group battery includes a large amount of battery cell, need be connected the battery cell utmost point ear with the conducting circuit on the connecting circuit board, the connection work volume between the utmost point ear is great, the mode of setting up of current circuit board is that every utmost point ear all must be linked out a wire and be used for voltage measurement, current utmost point ear is used for voltage measurement's wire to draw out circuit board plate body outside, arrange the outer end of wire on voltage measurement winding displacement seat again, then just install voltage measurement winding displacement seat on the circuit board, this kind of mode of setting, cause a large amount of voltage line to distribute in the group battery, on the one hand neatly and handsome inad.
In addition, when the existing circuit connection board is connected with the battery tabs, a tab connection bottom board is required to be arranged between the battery and the circuit board, when the existing circuit connection board is assembled, the tabs on the battery penetrate through the tab connection bottom board and the connection circuit board, then the tabs of the two batteries which are overlapped are mutually overlapped, a laser welding mode is adopted when the tabs of the two batteries are mutually overlapped, and the connection mode of the tabs and the conductive circuit on the connection circuit board is also a laser welding mode, so that the assembly process of the battery is complicated, the cost is increased, and once a problem of connection between a certain single battery and the circuit board occurs and needs to be maintained, the welding part needs to be damaged and then welded and assembled again, the circuit board is greatly damaged, the same part cannot be replaced and maintained for many times, if the same problem occurs again at the same part, the whole body is, not only increases the maintenance cost, but also easily causes the waste of resources.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a connecting circuit board of a battery module.
The technical scheme of the invention is as follows:
a connecting circuit board of a battery module comprises a board body, wherein a plurality of tab connecting positions are respectively arranged on two sides of a central line of the board body in the length direction, the tab connecting positions on the same side of the central line are parallel to each other, a conducting strip is arranged on the same side surface of the board body on each tab connecting position, a conducting circuit integrated in the board body is arranged on one side of each conducting strip close to the central line, one end of each conducting circuit is connected with the conducting strip, and the other end of each conducting circuit is converged on a voltage measurement wiring position; a plurality of positioning holes penetrating through the conducting plate and the plate body are arranged on each lug connecting position at intervals; the battery module includes a plurality of monomer batteries that are parallel to each other and superpose, the both ends of monomer battery set up anodal ear and negative pole ear respectively, the both ends of battery module set up a connection circuit board respectively, set up respectively with the locating hole size on anodal ear and the negative pole ear, the through-hole that the position corresponds, the utmost point ear opposite in two adjacent monomer batteries of mutual stack is superpose each other, utmost point ear opposite in two monomer batteries after the utmost point ear opposite in polarity superposes with the conducting strip on the connection circuit board of same end contact, place the utmost point ear layering in the outside of the utmost point ear of mutual stack, set up with the locating hole size on the utmost point ear layering, the screw that the position corresponds, pass the utmost point ear layering with the screw, the utmost point ear layering of mutual stack, two utmost point ears opposite.
The two end parts of the tab connecting positions positioned on the same side of the midline are aligned with each other.
The screw holes are arranged on each lug connection position at intervals.
The position of the conductive circuit in the plate body is deviated to the back surface of one side provided with the conductive sheet.
The most upper lug connecting position on the connecting circuit board at one end of the battery module leads out the positive electrode of the battery module, and the most upper lug connecting position on the connecting circuit board at the other end of the battery module leads out the negative electrode of the battery module.
The top surface of the pole lug pressing strip is provided with a groove along the length direction, the groove is positioned on the center line of the pole lug pressing strip, and the bottom surface is provided with a serrated strip-shaped protrusion.
The upper surface of the lug pressing strip is an upward arched cambered surface.
The groove is of a V-shaped structure.
The invention has the following beneficial effects:
1. according to the connecting circuit board, the lug connecting positions are arranged on the same side of the board body, the conducting strips are arranged on the lug connecting positions, and the conducting circuit integrated in the board body and used for voltage measurement is arranged at the end part of each conducting strip.
2. According to the connecting circuit board, a tab connecting bottom plate is not required to be arranged between the battery and the circuit board, and the tabs of the single batteries are directly connected with the tab connecting positions of the connecting circuit board, so that the problem that assembly errors are influenced by a plurality of connecting parts is reduced, and meanwhile, the material cost and the labor cost can be reduced.
3. According to the connecting circuit board, the positioning holes are formed in the lug connecting positions, the through holes corresponding to the positioning holes are formed in the positive lugs and the negative lugs of the batteries, and when the positive lugs and the negative lugs of the two single batteries are connected, the lug pressing strips are adopted to press the lugs and the lug pressing strips and the plate body are fixed together by using screws, so that the positive lugs and the negative lugs of the two single batteries are connected and fixed with the lug connecting positions, the lugs do not need to be welded and fixed, the batteries are convenient and efficient to assemble, and the assembling cost is reduced.
4. Because the lug pressing strip is adopted to position and fix the battery lug, the battery lug can be connected by a screw when being assembled, the arrangement mode is convenient for disassembly and maintenance, the problems that the maintenance process is troublesome due to welding connection and the whole scrapping is caused due to the increase of the maintenance cost are avoided, and the repeated utilization rate of the connecting circuit board is improved, so that the cost and the resources are saved, and the environment protection is facilitated.
Drawings
Fig. 1 is a schematic view of a side of the connection circuit board away from the battery module according to the present invention;
FIG. 2 is a schematic view of the assembly of the single battery and the connecting circuit board according to the present invention;
FIG. 3 is a schematic structural diagram of a single battery according to the present invention;
FIG. 4 is a schematic view of a side of the connection circuit board facing the battery module according to the present invention;
fig. 5 is a schematic structural view of the tab pressing strip according to the present invention;
FIG. 6 is a schematic view showing the assembly of the positive tab and the negative tab of the end of two stacked batteries on the connecting circuit board;
the numbers and their corresponding names in the figure are as follows:
1-plate body, 2-tab connection position, 3-conducting sheet, 4-conducting circuit, 5-voltage measurement wiring position, 6-positioning hole, 7-single battery, 8-positive tab, 9-negative tab, 10-through hole, 11-tab pressing strip, 12-screw hole, 13-screw, 14-positive electrode of battery module, 15-negative electrode of battery module, 16-groove and 17-strip-shaped protrusion.
Detailed Description
The invention will be further explained with reference to the drawings.
The connecting circuit board of a battery module shown in fig. 1-6 comprises a board body 1, wherein a plurality of tab connection positions 2 are respectively arranged on two sides of a central line of the board body in the length direction, the tab connection positions on the same side of the central line are parallel to each other, a conductive sheet 3 is arranged on the same side surface of the board body on each tab connection position, a conductive circuit 4 integrated in the board body is arranged on one side of each conductive sheet close to the central line, one end of each conductive circuit is connected with the conductive sheet, and the other end of each conductive circuit is converged on a voltage measurement wiring position 5; a plurality of positioning holes 6 penetrating through the conducting plate and the plate body are arranged on each lug connecting position 2 at intervals; the battery module comprises a plurality of single batteries 7 which are overlapped in parallel, positive lugs 8 and negative lugs 9 are respectively arranged at two ends of each single battery, a connecting circuit board is respectively arranged at two ends of the battery module, through holes 10 corresponding to the sizes and the positions of the positioning holes are respectively arranged on the positive lugs and the negative lugs, lugs with opposite polarities in the adjacent upper and lower single batteries which are overlapped with each other, the lugs with opposite polarities in the two single batteries are overlapped and then contacted with a conducting strip on the connecting circuit board at the same end, and a lug pressing strip 11 is placed on the outer side of the lugs which are mutually overlapped, a screw hole 12 corresponding to the size and the position of the positioning hole is arranged on the lug pressing strip, and a screw 13 penetrates through the lug pressing strip, the lugs which are mutually overlapped, the conducting strip and the plate body to fix two lugs with opposite polarities on the plate body, so that series connection between the single batteries which are mutually overlapped is realized.
The two end parts of the tab connecting positions 2 positioned on the same side of the midline are aligned with each other.
The screw holes 12 are arranged on each pole lug connecting position at intervals.
The position of the conductive circuit 4 in the plate body is biased to the back surface of the side where the conductive sheet is arranged.
The utmost point ear connection position of the top of the connecting circuit board of one end among them battery module draws forth battery module's positive pole 14, and the utmost point ear connection position on the connecting circuit board of the battery module other end draws forth battery module's negative pole 15.
The top surface of the pole lug pressing strip 11 is provided with a groove 16 along the length direction, the groove is positioned on the center line of the pole lug pressing strip, and the bottom surface is provided with a serrated strip-shaped protrusion 17.
The upper surface of the tab pressing strip 11 is an upward arched cambered surface.
The groove 16 is of a V-shaped structure.
In the connection circuit board structure of the present invention, when the positive tab and the negative tab are respectively disposed at two ends of the single battery, a connection circuit board is respectively disposed at two ends of the single battery, as shown in fig. 1 and 4, two sides of a group of connection circuit boards disposed at two ends of the battery module are shown, fig. 4 is a connection surface with the positive tab and the negative tab of the battery module, wherein C1-C17 marked at an end of a conducting strip in fig. 4 indicates that the group of connection circuit boards can mount 17 single batteries, C1-C17 indicates a serial number of each single battery, in addition, C1-C17-in fig. 4 indicates a connection position from a C1 to a negative tab of a C17 single battery, and C1+ to C17+ indicates a connection position from a C1 to a positive tab of a C17 single battery; when the positive tab and the negative tab are respectively arranged at two ends of the single batteries, for example, the positive tab of the first single battery C1 is connected at the position C1+, the negative tab of the single battery is connected at the position C1-of the other connecting circuit board, the positive tab of the second single battery C2 is connected with the negative tab of the first single battery, which is represented by C1-/C2+ in fig. 4, the negative tab of the second single battery is connected with the positive tab of the third single battery C3, and so on, until the tab connection positions on the connecting circuit board are connected with the tabs of the single batteries to form series connection between the batteries, the positive electrode 14 of the battery module is led out from the positive tab connection position of the first single battery, and the negative electrode of the battery module is led out from the negative tab connection position of the last single battery.
According to the connecting circuit board, the lug connecting positions are arranged on the same side of the board body, the conducting strips are arranged on the lug connecting positions, and the conducting circuit integrated in the board body and used for voltage measurement is arranged at the end part of each conducting strip.
According to the connecting circuit board, a tab connecting bottom plate is not required to be arranged between the battery and the circuit board, and the tabs of the single batteries are directly connected with the tab connecting positions of the connecting circuit board, so that the problem that assembly errors are influenced by a plurality of connecting parts is reduced, and meanwhile, the material cost and the labor cost can be reduced.
According to the connecting circuit board, the positioning holes are formed in the lug connecting positions, the through holes corresponding to the positioning holes are formed in the positive lugs and the negative lugs of the batteries, and when the positive lugs and the negative lugs of the two single batteries are connected, the lug pressing strips are adopted to press the lugs and the lug pressing strips and the plate body are fixed together by using screws, so that the positive lugs and the negative lugs of the two single batteries are connected and fixed with the lug connecting positions, the lugs do not need to be welded and fixed, the batteries are convenient and efficient to assemble, and the assembling cost is reduced.
Because the lug pressing strip is adopted to position and fix the battery lug, the battery lug can be connected by a screw when being assembled, the arrangement mode is convenient for disassembly and maintenance, the problems that the maintenance process is troublesome due to welding connection and the whole scrapping is caused due to the increase of the maintenance cost are avoided, and the repeated utilization rate of the connecting circuit board is improved, so that the cost and the resources are saved, and the environment protection is facilitated.
Claims (8)
1. The utility model provides a battery module's connecting circuit board which characterized in that: the plate comprises a plate body (1), wherein a plurality of tab connection positions (2) are respectively arranged on two sides of a central line of the plate body in the length direction, the tab connection positions on the same side of the central line are parallel to each other, a conductive sheet (3) is arranged on the same side surface of the plate body on each tab connection position, a conductive circuit (4) integrated in the plate body is arranged on one side of each conductive sheet close to the central line, one end of each conductive circuit is connected with the conductive sheet, and the other end of each conductive circuit is converged on a voltage measurement wiring position (5); a plurality of positioning holes (6) penetrating through the conducting plate and the plate body are arranged on each lug connecting position (2) at intervals; the battery module comprises a plurality of single batteries (7) which are mutually parallel and overlapped, positive lugs (8) and negative lugs (9) are respectively arranged at two ends of each single battery, a connecting circuit board is respectively arranged at two ends of the battery module, the sizes of the positioning holes and through holes (10) corresponding to the positions are respectively formed in the positive lugs and the negative lugs, lugs with opposite polarities in adjacent upper and lower single batteries which are mutually overlapped, the lugs with opposite polarities in the two single batteries are in contact with conducting strips on the connecting circuit board at the same end after being overlapped, lug pressing strips (11) are placed on the outer sides of the lugs which are mutually overlapped, screw holes (12) corresponding to the positioning holes and the positions are formed in the lug pressing strips, screws (13) penetrate through the lug pressing strips, the lugs which are mutually overlapped, and the conducting strips and the plate body fix the two lugs with opposite polarities.
2. The connection circuit board of a battery module according to claim 1, wherein: the two end parts of the lug connecting positions (2) which are positioned on the same side of the midline are aligned with each other.
3. The connection circuit board of a battery module according to claim 1, wherein: and the screw holes (12) are formed in each lug connection position at intervals.
4. The connection circuit board of a battery module according to claim 1, wherein: the position of the conductive circuit (4) in the plate body is deviated to the back surface of one side provided with the conductive sheet.
5. The connection circuit board of a battery module according to claim 1, wherein: the utmost point ear of the connecting circuit board top of battery module wherein one end is connected the position and is drawn forth positive pole (14) of battery module, and the utmost point ear connection position of the top on the connecting circuit board of the battery module other end draws forth negative pole (15) of battery module.
6. The connection circuit board of a battery module according to any one of claims 1 to 5, wherein: the top surface of the pole lug pressing strip (11) is provided with a groove (16) along the length direction, the groove is positioned on the center line of the pole lug pressing strip, and the bottom surface is provided with a serrated strip-shaped protrusion (17).
7. The connection circuit board of a battery module according to claim 6, wherein: the upper surface of the tab pressing strip (11) is an upward arched cambered surface.
8. The connection circuit board of a battery module according to claim 6, wherein: the groove (16) is of a V-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011133918.5A CN112259921A (en) | 2020-10-21 | 2020-10-21 | Connecting circuit board of battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011133918.5A CN112259921A (en) | 2020-10-21 | 2020-10-21 | Connecting circuit board of battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112259921A true CN112259921A (en) | 2021-01-22 |
Family
ID=74264438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011133918.5A Pending CN112259921A (en) | 2020-10-21 | 2020-10-21 | Connecting circuit board of battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112259921A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115473010A (en) * | 2022-09-16 | 2022-12-13 | 上海派智能源有限公司 | Battery support and assembled battery |
-
2020
- 2020-10-21 CN CN202011133918.5A patent/CN112259921A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115473010A (en) * | 2022-09-16 | 2022-12-13 | 上海派智能源有限公司 | Battery support and assembled battery |
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