CN110556499A - Processing method of collecting piece and busbar connecting structure and connecting structure - Google Patents
Processing method of collecting piece and busbar connecting structure and connecting structure Download PDFInfo
- Publication number
- CN110556499A CN110556499A CN201910871586.1A CN201910871586A CN110556499A CN 110556499 A CN110556499 A CN 110556499A CN 201910871586 A CN201910871586 A CN 201910871586A CN 110556499 A CN110556499 A CN 110556499A
- Authority
- CN
- China
- Prior art keywords
- sheet
- busbar
- riveting
- collecting
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 16
- 238000003466 welding Methods 0.000 claims abstract description 24
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 9
- 238000004512 die casting Methods 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The invention discloses a processing method of a connection structure of a collecting sheet and a busbar and the connection structure. The connecting structure comprises a busbar and a collecting sheet. The bus bar is provided with a sheet groove. The head of the collecting sheet is clamped in the sheet groove to form a clamping structure between the busbar and the collecting sheet. The busbar and the acquisition sheet are connected and fixed in the sheet groove through the riveting part and the laser welding point. The riveting part is formed by processing a riveting column arranged in a sheet groove by adopting a hot riveting processing technology after the riveting column penetrates through a riveting hole formed in the head of the acquisition sheet. The laser welding spot is formed by performing laser welding around the periphery of the riveting part. Compared with the prior art, the collecting piece is firmer in connecting structure, and the collecting piece is not easy to fall off.
Description
Technical Field
The invention relates to a connecting mechanism for connecting a collecting sheet of a voltage collecting device with a busbar through the busbar.
Background
with the support of national strategy and the development of related industrial systems, the market of new energy passenger vehicles is gradually expanded under the support of policies and the characteristics of environmental protection and energy conservation, more and more new energy vehicles enter thousands of households, and the attention of the public on the safety of the new energy vehicles is promoted.
Present new energy automobile is pure electric vehicles, and the biggest potential safety hazard of pure electric vehicles just is that the battery is on fire, the explosion, and in numerous electric vehicles accident on fire, the low pressure information acquisition of module became invalid and has taken a very big part, and the low pressure information acquisition of present module roughly falls into three types: wire harness, FPC, slave board. The FPC acquisition mode has a simple structure and high safety and reliability, and occupies the mainstream market at present.
However, in the use process of the FPC, the collection nickel sheet welded on the busbar is easy to fall off, the reason for the fall-off is that insufficient welding strength, too large deformation and the like are caused, once the collection terminal-nickel sheet falls off, the system cannot collect the information of the relevant battery, and cannot manage and control the battery, so that a great potential safety hazard is generated.
disclosure of Invention
The problems to be solved by the invention are as follows: the connecting structure of the lower busbar and the collecting sheet in the prior art has insufficient strength and is easy to fall off.
In order to solve the problems, the invention adopts the following scheme:
According to the processing method of the collecting sheet and busbar connecting structure, the processing method comprises the following steps:
S1: preparing a busbar, arranging a sheet groove at the joint of the busbar and a collecting sheet, and arranging a riveting column in the sheet groove;
S2: preparing a collecting piece, and arranging a riveting hole on the head of the collecting piece; the size of the riveting hole is matched with that of the riveting column;
S3: the head of the acquisition sheet is clamped into the sheet groove of the busbar, and the riveting column in the sheet groove penetrates through the riveting hole of the head;
S4: and processing the riveting column by adopting a hot riveting processing technology to form a riveting part.
Further, according to the processing method of the collecting sheet and busbar connecting structure, the collecting sheet comprises a head part and a connecting part; the head part is square and forms a T-shaped structure with the connecting part; the riveting hole is positioned in the center of the head; the sheet groove comprises a square part and a side opening part; the size of the square part is matched with that of the head part, the width of the side opening part is matched with that of the connecting part of the collecting piece, so that the square part and the side opening part form a T-shaped structure, and edge clamping bulges positioned at the edges of the sides of the busbar are left on two sides of the side opening part; the riveting column is located in the center of the square portion.
Further, according to the processing method of the collecting sheet and busbar connecting structure of the invention, the processing method further comprises the step of S5:
S5: and carrying out laser welding around the periphery of the riveting part.
Further, according to the processing method of the collecting piece and busbar connecting structure, the depth of the piece groove is matched with the thickness of the collecting piece.
Further, according to the processing method of the collecting sheet and busbar connecting structure, the sheet groove and the riveting column are manufactured by a stamping or die-casting process.
The collecting sheet and busbar connecting structure comprises a busbar and a collecting sheet, wherein a sheet groove is formed in the busbar; the depth of the slice groove is matched with the thickness of the acquisition slice; the head of the collecting piece is clamped in the piece groove and is connected with the riveting part in the piece groove.
Further, according to the collecting piece and busbar connecting structure provided by the invention, the riveting part is formed by processing the riveting column arranged in the piece groove by adopting a hot riveting processing technology after the riveting column penetrates through the riveting hole arranged on the head part of the collecting piece.
Further, according to the connecting structure of the collecting sheet and the busbar, the collecting sheet comprises a head part and a connecting part; the head part is square and forms a T-shaped structure with the connecting part; the riveting hole is positioned in the center of the head; the sheet groove comprises a square part and a side opening part; the size of the square part is matched with that of the head part, the width of the side opening part is matched with that of the connecting part of the collecting piece, so that the square part and the side opening part form a T-shaped structure, and edge clamping bulges positioned at the edges of the sides of the busbar are left on two sides of the side opening part; the riveting column is located in the center of the square portion.
Further, according to the collecting piece and busbar connecting structure, laser welding spots formed by laser welding are further arranged on the periphery of the riveting part, and the busbar and the collecting piece are further connected through the laser welding spots.
Further, according to the collecting sheet and busbar connecting structure, the sheet groove and the riveting column are manufactured by a stamping or die-casting process.
The invention has the following technical effects:
1. The sheet groove is formed in the busbar, so that the collecting sheet is convenient to position in assembly.
2. Through female the screens of arranging and gathering the piece, combine the technology that riveting and laser welding combined together for it is more firm with female the arranging to gather the piece, even if there is the rosin joint problem in laser welding and does not influence the piece of gathering and is arranged being connected with female, makes to gather the piece and is difficult to drop.
3. The head card of gathering the piece makes female arranging and gather the piece under receiving the exogenic action through screens each other in the piece inslot, is difficult to influence riveting portion and welding point when dragging each other, reduces the effort of dragging power to riveting portion and welding point to reduce female arranging and gather the risk that the piece drops under receiving exogenic action.
4. set up the chip groove on female arranging, gather the piece card at the chip inslot for it has bigger contact surface to gather between piece and the female arranging, makes FPC information collection more accurate.
5. the riveting column on the busbar can be integrally formed by stamping or die-casting process, but not welded on the sheet groove by welding process, so that the problem of falling does not exist, and the riveted part is difficult to fall off after riveting.
drawings
Fig. 1 is a schematic view of a connection structure of a collecting sheet and a busbar according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a busbar according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a collecting sheet according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of the embodiment of the invention, in which riveting processing is not performed after the head of the acquisition sheet is clamped in the busbar sheet groove.
The bus bar is characterized in that 1 is a bus bar, 11 is a sheet groove, 111 is a square part, 112 is a side opening part, 12 is a riveting column, 13 is an edge clamping projection, 2 is a collecting sheet, 21 is a head part, 22 is a connecting part, 23 is a riveting hole, 3 is an FPC (flexible printed circuit), 41 is a riveting part, and 42 is a laser welding spot.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a collecting piece and busbar connecting structure includes a busbar 1 and a collecting piece 2. The head 21 of the acquisition sheet 2 is connected with the busbar 1, and the tail end is connected with the FPC 3. The FPC is also a flexible circuit board. The structure formed by the collection sheet and busbar connection structure and the FPC is used for collecting the voltage of the battery in the power battery, the busbar 1 is connected with the positive and negative electrodes of the battery, and the FPC is provided with a voltage collection circuit. As shown in fig. 2, a sheet groove 11 is provided at the joint of the busbar 1 and the collecting sheet 2. The head 21 of the collecting sheet 2 is clamped in the sheet groove 11, and the head 21 of the collecting sheet 2 is fixed and connected with the busbar 1 through the riveting part 41 and the laser welding spot 42. The depth of the sheet groove 11 is matched to the thickness of the acquisition sheet 2, and specifically the depth of the sheet groove 11 is at least half of the thickness of the acquisition sheet 2.
The sheet groove 11 of the busbar 1 and the collecting sheet 2 are mutually clamped. Specifically, as shown in fig. 3, the acquisition sheet 2 includes a head portion 21 and a connecting portion 22. The head 21 is square, the connecting portion 22 is strip-shaped, and the width of the connecting portion is narrower than that of the head 21, so that the head 21 and the connecting portion 22 form a T-shaped structure. The head 21 is provided with a staking hole 23 in the center. The sheet groove 11 includes a square portion 111 and a side opening 112, as shown in fig. 2. The size of square portion 111 matches with head 21, and the width of side opening 112 matches with connecting portion 22 of gathering piece 2 for square portion 111 and side opening 112 constitute T shape structure, and leave the edge card protruding 13 that is located female arranging 1 side edge in the both sides of side opening 112. The center of the square portion 111 is provided with a rivet 12. When the collecting sheet 2 is clamped into the sheet groove 11 of the busbar 1, the head 21 is clamped in the square portion 111, the riveting column 12 passes through the riveting hole 23 in the center of the head 21, and a section of the connecting portion 22 close to the head 21 is clamped in the side opening 112, as shown in fig. 4. The rivet 41 is formed by processing the rivet post 12 by a hot riveting process after the rivet post 12 passes through the rivet hole 23. Specifically, the rivet post 12 is heated, and then the heated rivet post 12 is pressed flat. Laser welds 42 are formed by laser welding. The laser welds 42 are distributed in a circle around the perimeter of the rivet 41.
The collecting sheet and busbar connecting structure is processed by the following processing method:
In step S1, busbar 1 is prepared. A sheet groove 11 is arranged at the joint of the busbar 1 and the acquisition sheet 2, and a riveting column 12 is arranged in the sheet groove 11. The depth of the sheet groove 11 matches the thickness of the acquisition sheet 2. The sheet groove 11 includes a square portion 111 and a side opening 112. The square part 111 and the side opening part 112 form a T-shaped structure, and edge clamping protrusions 13 positioned at the side edges of the busbar 1 are left at two sides of the side opening part 112. The sheet groove 11 and the rivet columns in the sheet groove 11 are manufactured through a stamping or die-casting process.
Step S2, the acquisition sheet 2 is prepared. The acquisition sheet 2 includes a head portion 21 and a connecting portion 22. The head portion 21 and the connecting portion 22 constitute a T-shaped structure. The size of the head 21 matches the size of the square portion 111, and the width of the side opening 112 matches the connecting portion 22 of the acquisition sheet 2. A riveting hole 23 is formed in the center of the head 21 of the collecting piece 2. The staking holes 23 are sized to match the staking posts 12.
Step S3, the head 21 of the collecting piece 2 is snapped into the piece groove 11 of the busbar 1, and the riveting column 12 in the piece groove 11 passes through the riveting hole 23 of the head 21, so as to form the connection structure shown in fig. 4.
In step S4, the riveting post 12 is processed by a hot riveting process to form the riveting portion 41.
In step S5, laser welding is performed around the rivet 41 at a plurality of positions, and after the laser welding, laser welding spots 42 are formed around the rivet 41, and the laser welding spots 42 are arranged in a circular shape.
It should be noted that, in the above steps, the sequence of step S1 and step S2 may be changed, and the sequence of step S4 and step S5 may be changed.
Claims (10)
1. A processing method of a connection structure of a collection sheet and a busbar is characterized by comprising the following steps:
S1: preparing a busbar (1), arranging a sheet groove (11) at the joint of the busbar (1) and a collecting sheet (2), and arranging a riveting column (12) in the sheet groove (11);
S2: preparing a collecting sheet (2), and arranging a riveting hole (23) on the head (21) of the collecting sheet (2); the size of the riveting hole (23) is matched with that of the riveting column (12);
S3: the head (21) of the collecting sheet (2) is clamped into the sheet groove (11) of the busbar (1), and the riveting column (12) in the sheet groove (11) penetrates through the riveting hole (23) of the head (21);
s4: and processing the riveting column (12) by adopting a hot riveting processing technology to form a riveting part (41).
2. The processing method of the collecting sheet and busbar connecting structure according to claim 1, wherein the collecting sheet (2) comprises a head portion (21) and a connecting portion (22); the head part (21) is square and forms a T-shaped structure with the connecting part (22); the riveting hole (23) is positioned in the center of the head (21); the sheet groove (11) comprises a square part (111) and a side opening part (112); the size of the square part (111) is matched with that of the head part (21), the width of the side opening part (112) is matched with that of the connecting part (22) of the acquisition sheet (2), so that the square part (111) and the side opening part (112) form a T-shaped structure, and edge clamping protrusions (13) positioned at the side edge of the busbar (1) are reserved on two sides of the side opening part (112); the rivet post (12) is located at the center of the square portion (111).
3. The processing method of the connection structure of the acquisition sheet and the busbar according to claim 1 or 2, further comprising the step of S5:
S5: laser welding is performed at a plurality of positions around the periphery of the rivet portion (41).
4. The processing method of the collecting piece and busbar connecting structure according to claim 1 or 2, wherein the depth of the piece groove (11) is matched with the thickness of the collecting piece (2).
5. The processing method of the collecting piece and busbar connecting structure according to claim 1 or 2, wherein the piece groove (11) and the riveting column (12) are formed by stamping or die-casting.
6. a collecting sheet and busbar connecting structure comprises a busbar (1) and a collecting sheet (2), and is characterized in that a sheet groove (11) is formed in the busbar (1); the depth of the sheet groove (11) is matched with the thickness of the acquisition sheet (2); the head (21) of the acquisition sheet (2) is clamped in the sheet groove (11) and connected through a riveting part (41) positioned in the sheet groove (11).
7. The connection structure of the acquisition sheet and the busbar according to claim 6, wherein the riveting portion (41) is formed by processing the riveting column (12) by a hot riveting process after the riveting column (12) arranged in the sheet groove (11) passes through the riveting hole (23) arranged on the head portion (21) of the acquisition sheet (2).
8. The connecting structure of the collecting sheet and the busbar according to claim 7, wherein the collecting sheet (2) comprises a head portion (21) and a connecting portion (22); the head part (21) is square and forms a T-shaped structure with the connecting part (22); the riveting hole (23) is positioned in the center of the head (21); the sheet groove (11) comprises a square part (111) and a side opening part (112); the size of the square part (111) is matched with that of the head part (21), the width of the side opening part (112) is matched with that of the connecting part (22) of the acquisition sheet (2), so that the square part (111) and the side opening part (112) form a T-shaped structure, and edge clamping protrusions (13) positioned at the side edge of the busbar (1) are reserved on two sides of the side opening part (112); the rivet post (12) is located at the center of the square portion (111).
9. The connecting structure of the acquisition sheet and the busbar according to claim 6, 7 or 8, wherein the riveting portion (41) is further provided with a laser welding spot (42) formed by laser welding at the periphery, and the busbar (1) and the acquisition sheet (2) are further connected through the laser welding spot (42).
10. The connection structure of the acquisition sheet and the busbar according to claim 6, 7 or 8, wherein the sheet groove (11) and the riveting column (12) are formed by stamping or die-casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910871586.1A CN110556499A (en) | 2019-09-16 | 2019-09-16 | Processing method of collecting piece and busbar connecting structure and connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910871586.1A CN110556499A (en) | 2019-09-16 | 2019-09-16 | Processing method of collecting piece and busbar connecting structure and connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110556499A true CN110556499A (en) | 2019-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910871586.1A Pending CN110556499A (en) | 2019-09-16 | 2019-09-16 | Processing method of collecting piece and busbar connecting structure and connecting structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN110556499A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921998A (en) * | 2021-10-15 | 2022-01-11 | 东莞市硅翔绝缘材料有限公司 | Integrated busbar with hot riveting structure and preparation process thereof |
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|---|---|---|---|---|
| GB9802053D0 (en) * | 1997-02-03 | 1998-03-25 | Loh Kg Rittal Werk | Branch connection for power bus bars of a bus bar system standing at right angles to one another |
| FR3047616A3 (en) * | 2016-02-05 | 2017-08-11 | Tyco Electronics Shanghai Co Ltd | |
| WO2018029639A1 (en) * | 2016-08-12 | 2018-02-15 | 泰科电子(上海)有限公司 | Lead frame, connection assembly, signal sampling device and battery pack |
| CN207098075U (en) * | 2017-08-30 | 2018-03-13 | 浙江赛英电力科技有限公司 | The insulation connection structure of composite bus bar and copper bar |
| CN109301143A (en) * | 2018-10-19 | 2019-02-01 | 胜蓝科技股份有限公司 | A kind of anti-tear automobile batteries sampling harness of integration |
| CN210897448U (en) * | 2019-09-16 | 2020-06-30 | 江苏塔菲尔新能源科技股份有限公司 | Collection piece and female connection structure that arranges |
-
2019
- 2019-09-16 CN CN201910871586.1A patent/CN110556499A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9802053D0 (en) * | 1997-02-03 | 1998-03-25 | Loh Kg Rittal Werk | Branch connection for power bus bars of a bus bar system standing at right angles to one another |
| FR3047616A3 (en) * | 2016-02-05 | 2017-08-11 | Tyco Electronics Shanghai Co Ltd | |
| WO2018029639A1 (en) * | 2016-08-12 | 2018-02-15 | 泰科电子(上海)有限公司 | Lead frame, connection assembly, signal sampling device and battery pack |
| CN207098075U (en) * | 2017-08-30 | 2018-03-13 | 浙江赛英电力科技有限公司 | The insulation connection structure of composite bus bar and copper bar |
| CN109301143A (en) * | 2018-10-19 | 2019-02-01 | 胜蓝科技股份有限公司 | A kind of anti-tear automobile batteries sampling harness of integration |
| CN210897448U (en) * | 2019-09-16 | 2020-06-30 | 江苏塔菲尔新能源科技股份有限公司 | Collection piece and female connection structure that arranges |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921998A (en) * | 2021-10-15 | 2022-01-11 | 东莞市硅翔绝缘材料有限公司 | Integrated busbar with hot riveting structure and preparation process thereof |
| CN113921998B (en) * | 2021-10-15 | 2024-02-06 | 东莞市硅翔绝缘材料有限公司 | Integrated busbar with hot riveting structure and preparation process thereof |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220125 Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Applicant after: Jiangsu Zenergy Battery Technologies Co.,ltd Address before: 211156 No. 249, Lantian Road, Airport Economic Development Zone, Jiangning District, Nanjing, Jiangsu Province Applicant before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Applicant before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Applicant before: SHENZHEN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191210 |