CN113067105B - Electricity core sampling connecting device and battery module - Google Patents
Electricity core sampling connecting device and battery module Download PDFInfo
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- CN113067105B CN113067105B CN202110313300.5A CN202110313300A CN113067105B CN 113067105 B CN113067105 B CN 113067105B CN 202110313300 A CN202110313300 A CN 202110313300A CN 113067105 B CN113067105 B CN 113067105B
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- sampling
- sheet
- circuit board
- flexible circuit
- battery
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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
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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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)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention belongs to the technical field of batteries and discloses a battery core sampling connection device and a battery module, wherein the battery core sampling connection device comprises a sampling sheet and a bus sheet, and one end of the sampling sheet is fixedly arranged on a flexible circuit board and is electrically connected with the flexible circuit board; the other end of the sampling sheet, which is far away from the flexible circuit board, is provided with a buckle structure; one end of the bar piece is provided with a bending part, a clamping groove is arranged on the bending part, and the bar piece is fixedly arranged above the electric core; in the other end that flexible circuit board was kept away from to the sample piece stretched into the kink, buckle structure can with the draw-in groove joint, make sample piece and piece can dismantle the connection through the connected mode of buckle, change simple to operate. The battery module comprises a plurality of the above battery cell sampling connecting devices, the sampling sheet and the bus sheet of the battery module are connected conveniently and quickly, the battery module is easy to replace when damaged, and the maintenance cost is reduced.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery core sampling connecting device and a battery module.
Background
When the battery works, the voltage and the temperature of the battery core of the module need to be monitored in real time, and the existing sampling connection mode is to weld and fix the nickel sheet 101 on the flexible circuit board 100 and the connection bus sheet 102 directly, so that the flexible circuit board 100 and the nickel sheet 101 cannot be disassembled, and the maintainability is poor; in the welding process, the requirements on the surfaces of the nickel sheet 101 and the connecting bar sheet 102 are high, and the false welding during welding can not be detected, so that the signal acquisition fails; and the nickel sheet 101 is difficult to replace under the condition of failure in the welding process, and the surface of the connecting strap 102 is also damaged, so that secondary welding is influenced.
Disclosure of Invention
The invention aims to provide a cell sampling connecting device and a battery module, which can enable a sampling sheet and a bus sheet to be detachably connected, are convenient to replace and install and reduce the maintenance cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, a cell sampling connection device is provided, including:
the device comprises a sampling sheet, a flexible circuit board and a control circuit, wherein one end of the sampling sheet is fixedly arranged on the flexible circuit board and is electrically connected with the flexible circuit board; the other end of the sampling sheet, which is far away from the flexible circuit board, is provided with a buckle structure;
the battery cell comprises a plurality of battery cells, wherein one end of each battery cell is provided with a bending part, a clamping groove is formed in each bending part, and the battery cells are fixedly arranged on the poles of the two adjacent battery cells; the sampling sheet is kept away from the other end of the flexible circuit board stretches into the bent part, and the buckle structure can be clamped with the clamping groove.
As a preferred structure of the present invention, one end of the tab is bent by 180 ° to form the bending portion, and the other end of the sampling tab, which is far away from the flexible circuit board, extends into the gap of the bending portion.
As a preferred structure of the invention, the buckle structure comprises an elastic sheet, a via hole is arranged on the sampling sheet, one end of the elastic sheet is connected with the side wall of the via hole, the other end of the elastic sheet is a free end, the elastic sheet is partially bent to form a bulge, and the bulge can be clamped with the clamping groove.
As a preferred structure of the present invention, the thickness dimension H1 of the resilient tab is smaller than the bending gap dimension H2.
As a preferred structure of the present invention, when the protrusion is engaged with the slot, the free end of the elastic sheet abuts against the inner wall of the bending portion.
As a preferable structure of the present invention, the protrusion includes a clamping portion, and when the protrusion is clamped with the slot, a distance H3 between the clamping portion and an inner wall of the slot is greater than 0 mm.
As a preferable structure of the present invention, the projection includes a guide portion.
As a preferable structure of the present invention, the sampling sheet is made of an elastic material.
On the other hand, a battery module is provided, including above-mentioned electric core sampling connecting device, electric core sampling connecting device is provided with a plurality ofly.
As a preferable structure of the present invention, the battery module further includes:
the battery comprises a plurality of battery cells, a plurality of bus bars and a plurality of bus plates, wherein the battery cells are arranged in the same row, two pole columns are arranged on each battery cell at intervals, and two ends of each bus bar are fixedly connected with the pole columns of two adjacent battery cells respectively;
and the flexible circuit board is fixedly arranged above the plurality of battery cores and is electrically connected with the plurality of sampling sheets.
The invention has the beneficial effects that: the battery core sampling connecting device comprises the sampling sheet and the bus sheet, wherein the sampling sheet is provided with the buckle structure, the bus sheet is provided with the bending part, the bending part is provided with the clamping groove, the sampling sheet can extend into the bending part to be clamped with the clamping groove, the sampling sheet and the bus sheet are detachably connected through the buckle connection mode, the replacement and the installation are convenient, the sampling sheet extends into the bending part and is surrounded and protected by the bending part, the exposed area of a nickel sheet is reduced, the falling ash damage and the like are prevented, and the connection effect is also ensured. In addition, the invention also provides a battery module which comprises the battery core sampling connecting device, wherein the sampling sheet and the bus sheet of the battery module are conveniently and quickly connected, and are easy to replace when damaged, so that the maintenance cost is reduced.
Drawings
FIG. 1 is a connection mode of a nickel plate and a connection bar plate on a prior flexible circuit board;
FIG. 2 is a schematic structural diagram of a flexible printed circuit board and a sampling sheet thereon according to an embodiment of the present invention;
FIG. 3 is an enlarged partial schematic view at A in FIG. 2;
FIG. 4 is a front view of a flexible circuit board and a sampling sheet thereon according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along A-A of FIG. 4;
FIG. 6 is an enlarged partial schematic view at B in FIG. 5;
FIG. 7 is a schematic structural diagram of a bus bar according to an embodiment of the invention;
FIG. 8 is a front view of a blade according to an embodiment of the present invention;
FIG. 9 is an enlarged cross-sectional view taken along the line B-B in FIG. 8;
fig. 10 is a schematic structural view of a battery module according to an embodiment of the present invention;
fig. 11 is a front view of a battery module according to an embodiment of the present invention;
FIG. 12 is a cross-sectional view taken along the line C-C of FIG. 11;
FIG. 13 is an enlarged partial schematic view at C of FIG. 12;
fig. 14 is a partially enlarged schematic view of fig. 13 at D.
In the figure:
1. sampling a sample sheet; 11. a buckle structure; 111. a spring plate; 1111. a protrusion; 1112. a clamping part; 1113. a guide portion; 112. a via hole;
2. a tablet; 21. a bending section; 211. a card slot;
100. a flexible circuit board; 101. a nickel sheet; 102. connecting the splints; 200. an electric core; 201. a pole column;
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, unless otherwise specifically stated or limited, the terms "connected," "connected," and "fixed" are to be construed broadly and may include, for example, fixed or detachable connections, mechanical or electrical connections, direct or indirect connections via intermediate media, communication between two elements, or the interaction between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 2 to 14, the invention provides a battery cell sampling connection device and a battery module, the battery cell sampling connection device includes a sampling sheet 1 and a bus sheet 2, one end of the sampling sheet 1 is fixedly mounted on a flexible circuit board 100 and is electrically connected to the flexible circuit board 100; preferably, the sampling sheet 1 is made of an elastic material; the other end of the sampling sheet 1, which is far away from the flexible circuit board 100, is provided with a buckle structure 11; one end of each bar piece 2 is provided with a bending part 21, a clamping groove 211 is arranged on each bending part 21, and the bar pieces 2 are fixedly arranged on the pole columns 201 of two adjacent battery cells 200; in the other end that flexible circuit board 100 was kept away from to sampling piece 1 stretched into kink 21, buckle structure 11 can with draw-in groove 211 joint, make sampling piece 1 and piece 2 pass through to realize dismantling the connection between buckle structure 11 and draw-in groove 211. The electric core sampling connecting device enables the sampling sheet 1 and the bus sheet 2 to be detachably connected through the connection mode of the buckle, the replacement and the installation are convenient, and the sampling sheet 1 extends into the bent part 21 and is surrounded and protected by the bent part 21, so that the exposure area of the sampling sheet 1 is reduced, the falling ash damage and the like are prevented, the connection effect of the sampling sheet 1 and the bus sheet 2 is enhanced, and the connection reliability is ensured.
Specifically, 180 formation kink 21 are buckled to the one end of piece 2, and in the other end that flexible circuit board 100 was kept away from to sampling piece 1 stretched into kink 21 clearance, buckle structure 11 and draw-in groove 211 joint on the sampling piece 1, inside sampling piece 1 stretched into kink 21, surrounded the protection by kink 21, had both reduced the exposure area of sampling piece 1, prevented falling ash damage etc. has also strengthened the connection effect, guaranteed sampling piece 1 and kink 21 fully connected.
Specifically, the buckle structure 11 includes an elastic sheet 111, the elastic sheet 111 has elasticity, a via hole 112 is formed on the sampling sheet 1, one end of the elastic sheet 111 is connected with a side wall of the via hole 112, and the other end of the elastic sheet 111 is a free end; preferably, the opening area of the via hole 112 is large, so that the elastic sheet 111 can be completely accommodated, and the free end of the elastic sheet 111 can move in or out relative to the via hole 112; the elastic sheet 111 is partially bent to form a protrusion 1111, and the protrusion 1111 can be engaged with the engaging groove 211. When protruding 1111 and draw-in groove 211 joint, the free end top of shell fragment 111 leans on in the 21 inner walls of kink to guarantee the inseparable laminating of shell fragment 111 and piece 2, make the sampling accurate reliable, and protruding 1111 is difficult for following the slippage in the draw-in groove 211, strengthened the wireless connection of protruding 1111 and draw-in groove 211. Preferably, the thickness dimension H1 of the resilient tab 111 is smaller than the gap dimension H2 of the bent portion 21, so that the resilient tab 111 can extend into the gap of the bent portion 21.
Specifically, the protrusion 1111 includes the clamping portion 1112, and when the protrusion 1111 is clamped with the clamping groove 211, a distance H3 between the clamping portion 1112 and the inner wall of the clamping groove 211 is greater than 0mm, so that installation errors and later expansion deformation can be absorbed, and an effect of releasing expansion force is achieved. Preferably, protrusion 1111 also includes a guide portion 1113 for guiding protrusion 1111 to engage with slot 211.
The invention also discloses a battery module which comprises a plurality of the battery cell sampling connecting devices. Preferably, the battery module further comprises a plurality of battery cells 200 and a flexible circuit board 100, the plurality of battery cells 200 are arranged in the same row, two poles 201 are arranged on each battery cell 200 at intervals, and two ends of each bar piece 2 are respectively fixedly connected with the poles 201 of two adjacent battery cells 200; flexible circuit board 100 fixed mounting is in a plurality of electric cores 200 tops, is connected with a plurality of sampling pieces 1 electricity, and protruding 1111 and draw-in groove 211 joint on the sampling piece 1 realize dismantling the connection through the mode of buckle connection, connects convenient and fast, and easy the change has reduced the maintenance cost when sampling piece 1 or piece 2 damage.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a electricity core sampling connecting device which characterized in that includes:
the device comprises a sampling sheet (1), wherein one end of the sampling sheet (1) is fixedly arranged on a flexible circuit board (100) and is electrically connected with the flexible circuit board (100); the other end of the sampling sheet (1) far away from the flexible circuit board (100) is provided with a buckle structure (11);
the battery cell comprises a plurality of battery cells (200), wherein each battery cell comprises a plurality of bus bars (2), one end of each bus bar (2) is bent for 180 degrees to form a bent part (21), a clamping groove (211) is formed in each bent part (21), and the bus bars (2) are fixedly arranged on the poles (201) of two adjacent battery cells (200); sample piece (1) is kept away from the other end of flexible circuit board (100) stretches into in kink (21) clearance, buckle structure (11) include shell fragment (111), be provided with via hole (112) on sample piece (1), the one end of shell fragment (111) with via hole (112) lateral wall is connected, the other end of shell fragment (111) is the free end, shell fragment (111) local bending type becomes protruding (1111), protruding (1111) can with draw-in groove (211) joint.
2. The cell sampling connection device of claim 1, wherein a thickness dimension H1 of the resilient tab (111) is smaller than a gap dimension H2 of the bent portion (21).
3. The cell sampling connection device of claim 1, wherein when the protrusion (1111) is engaged with the engaging groove (211), the free end of the elastic piece (111) abuts against the inner wall of the bending part (21).
4. The electrical core sampling connection device of claim 1, wherein the protrusion (1111) comprises a clamping portion (1112), and when the protrusion (1111) is clamped with the clamping groove (211), a distance H3 between the clamping portion (1112) and the inner wall of the clamping groove (211) is greater than 0 mm.
5. The electrical core sampling connection device of claim 1, wherein the projection (1111) comprises a guide (1113).
6. The cell sampling connection device according to any of claims 1 to 5, characterized in that the sampling sheet (1) is made of an elastic material.
7. A battery module, characterized by comprising the cell sampling connection device of any one of claims 1 to 6, wherein the cell sampling connection device is provided with a plurality of cells.
8. The battery module according to claim 7, further comprising:
the battery comprises a plurality of battery cells (200), the battery cells (200) are arranged in the same row, two poles (201) are arranged on each battery cell (200) at intervals, and two ends of the bus sheet (2) are respectively and fixedly connected with the poles (201) of two adjacent battery cells (200);
and the flexible circuit board (100) is fixedly arranged above the plurality of battery cells (200) and is electrically connected with the plurality of sampling sheets (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110313300.5A CN113067105B (en) | 2021-03-24 | 2021-03-24 | Electricity core sampling connecting device and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110313300.5A CN113067105B (en) | 2021-03-24 | 2021-03-24 | Electricity core sampling connecting device and battery module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113067105A CN113067105A (en) | 2021-07-02 |
| CN113067105B true CN113067105B (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110313300.5A Active CN113067105B (en) | 2021-03-24 | 2021-03-24 | Electricity core sampling connecting device and battery module |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871802B (en) * | 2021-09-10 | 2024-09-06 | 东莞市万连实业有限公司 | Preparation method of copper bar connecting piece with novel voltage sampling point |
| WO2023060380A1 (en) * | 2021-10-11 | 2023-04-20 | 宁德时代新能源科技股份有限公司 | Method and apparatus for compensating sampling voltages of battery cells, and electric apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209730082U (en) * | 2019-01-30 | 2019-12-03 | 宁德时代新能源科技股份有限公司 | Sampling circuit board and battery modules |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209730082U (en) * | 2019-01-30 | 2019-12-03 | 宁德时代新能源科技股份有限公司 | Sampling circuit board and battery modules |
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| CN113067105A (en) | 2021-07-02 |
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