CN105990555B - Soft package lithium battery cathode tab attachment device - Google Patents
Soft package lithium battery cathode tab attachment device Download PDFInfo
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- CN105990555B CN105990555B CN201510058891.0A CN201510058891A CN105990555B CN 105990555 B CN105990555 B CN 105990555B CN 201510058891 A CN201510058891 A CN 201510058891A CN 105990555 B CN105990555 B CN 105990555B
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- China
- Prior art keywords
- block
- circuit board
- attachment device
- connection sheet
- lithium battery
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention is a kind of related soft package lithium battery cathode tab attachment device, including：Step up block, lug connection sheet and circuit board；Wherein, wears groove is offered on circuit board, and block is equipped on the circuit board of wears groove side；Lug connection sheet is placed in wears groove；Step up block to be installed on circuit board, flexible fingertip is equipped on stepping up block, flexible fingertip has contact, and contact is contacted with lug connection sheet；Under contact, the contact deflection of flexible fingertip is in close contact with lug connection sheet, the lug of the multiple batteries being superimposed across wears groove is clamped in block and lug connection sheet.The lug attachment device of the present invention is convenient for the dismounting between battery, and simple in structure, connection is reliable, and internal resistance is small, can be universally used in the connection of the lug of the battery of a variety of connection in series-parallel forms.
Description
Technical field
The present invention relates to a kind of battery pole ear attachment devices, not having to welding more particularly to one kind, and ratio is bolted province
Fastener is removed, it is simple in structure, connect reliable soft package lithium battery cathode tab attachment device.
Background technology
Soft package lithium battery battery case used in present new-energy automobile, the connection in series-parallel of battery are by by battery pole ear phase
Mutually after superposition, it is attached using modes such as laser welding, ultrasonic bonding.Although welding have connection reliable, stable structure,
The advantages that high degree of automation, still, with but there are many problems in the connection of battery pole ear, such as：1) laser welding and
Ultrasonic bonding belong to can not reverse connection, not removable after welding, when finding some lithium battery therein, there are performance differences
Or when being unable to normal use, problematic lithium battery can not also be replaced, can only be allowed to influence other lithium electricity in battery pack
The normal use in pond, or entire battery pack is caused to be scrapped, this can undoubtedly cause the waste of resource, at the same also increase use at
This；2) it when overcurrent in battery pack, can only be disconnected by FCL relay, cannot accurately disconnect single battery in case, cause
Even if after being disconnected there may be FCL, faulty single battery in case is it is possible to short-circuit condition can be in；3) Soft Roll lithium electricity
The thickness in pond is smaller, the spacing of lug and lug also very little, it is difficult to meet laser welding and the required space of ultrasonic bonding,
This not only gives welding operation to make troubles, but also battery pole ear is also easy to be damaged in welding.It is connected by screw bolts battery
Although lug can to avoid welded bands come the problem of can not be split, fastener quantity is more, and internal resistance is big, can reduce battery
Energy density.
Invention content
In view of the defect present in the above-mentioned prior art, the object of the present invention is to provide a kind of soft package lithium battery poles
Ear attachment device makes it easy to the dismounting between battery, and simple in structure, and connection is reliable, and internal resistance is small, can be universally used in a variety of strings simultaneously
The connection of the lug of the battery of connection form.
To achieve the goals above, a kind of soft package lithium battery cathode tab attachment device proposed according to the present invention comprising：Add
Tight block, lug connection sheet and circuit board；Wherein, wears groove is offered on the circuit board, the collection in the wears groove side
It is equipped with block at plate；The lug connection sheet is placed in the wears groove；The block that steps up is installed on the circuit board,
The block that steps up is equipped with flexible fingertip, and the flexibility fingertip has contact, and the contact is contacted with the lug connection sheet；
Under contact, the contact deflection of the flexibility fingertip is in close contact with the lug connection sheet, will pass through the wears groove
The lugs of the multiple batteries being superimposed be clamped between the block and the lug connection sheet.
The present invention also can be used following technical measures and further realize.
Soft package lithium battery cathode tab attachment device above-mentioned, wherein hook is equipped on the circuit board, in the battery
Frame is equipped with buckle, and the circuit board is installed on by the hook and buckle fastening on the battery.
Soft package lithium battery cathode tab attachment device above-mentioned, wherein the block that steps up be to be electrically insulated and fire-retardant plastic products,
The flexibility fingertip is spring leaf.
Soft package lithium battery cathode tab attachment device above-mentioned, wherein the lug connection sheet includes the lug connection of positive and negative copper bar
Piece.
Soft package lithium battery cathode tab attachment device above-mentioned, wherein the flexibility fingertip is metallic spring, it is each described tactile
The overcurrent capability of point is more than 25A.
Soft package lithium battery cathode tab attachment device above-mentioned, wherein stepping up to be equipped with hook on block described, in the circuit board 3
It is equipped with buckle, the block that steps up is installed on by the grab and buckle fastening on the circuit board.
Soft package lithium battery cathode tab attachment device above-mentioned, wherein the wears groove there are two being opened up on shown circuit board,
It is respectively equipped with block on the circuit board on the outside of two wears grooves；One pole of holding is distinguished in two wears grooves
Ear connection sheet；The block that steps up is installed on the circuit board, between two lug connection sheets；Step up the two of block described
Side is respectively equipped with the flexible fingertip, and the contact of the flexibility fingertip is contacted with two lug connection sheets respectively；And
And the distance between two blocks is less than the block that steps up and connects with two lugs in the length in the flexible fingertip direction
The sum of thickness of contact pin, the size of difference are 2 times of the deflection of the contact of the flexible fingertip.
Soft package lithium battery cathode tab attachment device above-mentioned, wherein it is described step up on block it is described flexibility fingertip between be connected with it is molten
Disconnected device, when external loading is excessive or internal short-circuit of battery, the battery high current overcurrent, the fuse disconnects, battery case
Power-off.
Soft package lithium battery cathode tab attachment device above-mentioned passes through the hydroecium wherein stepping up to be equipped with hydroecium on block described
It radiates or heats for the lug connection sheet, while the hydroecium returns the block that steps up and provides pressure, make described to step up block more
It is not easy to loosen.
Soft package lithium battery cathode tab attachment device above-mentioned, wherein stepping up to be equipped with relay assembly on block described, to realize
Electric cut-out between the battery.
The present invention has clear advantage and advantageous effect compared with prior art.By above-mentioned technical proposal, the present invention
A kind of soft package lithium battery cathode tab attachment device, at least have following advantages：
One, a kind of soft package lithium battery cathode tab attachment device of the invention, it is convenient that the battery connected is split, and is having battery damage
Bad when, can will not bring disaster to other batteries in battery pack and scrap together, and since battery pole ear does not have to spiral shell with instantaneously changing
It tethers and connects, so internal resistance is small.
Two, a kind of soft package lithium battery cathode tab attachment device of the invention, simple in structure, connection is reliable, easy for installation, saves
Packaging technology.
Description of the drawings
Fig. 1 is the bolted schematic diagram of prior art soft package lithium battery cathode tab.
Fig. 2 is the schematic diagram of prior art soft package lithium battery cathode tab ultrasonic bonding.
Fig. 3 is the schematic diagram of soft package lithium battery cathode tab connection of the present invention.
Fig. 4 is the stereoscopic schematic diagram of soft package lithium battery cathode tab connection of the present invention.
Fig. 5 is a kind of exploded perspective schematic diagram of soft package lithium battery cathode tab attachment device of the present invention.
Fig. 6 is a kind of schematic diagram of the flexible fingertip for stepping up block of soft package lithium battery cathode tab attachment device of the present invention.
Fig. 7 is that a kind of flexible fingertip for stepping up block of soft package lithium battery cathode tab attachment device of the present invention connects with lug connection sheet
Tactile schematic diagram.
Fig. 8 is that a kind of block that steps up of soft package lithium battery cathode tab attachment device of the present invention is connected with fuse between flexible fingertip
Schematic diagram.
Fig. 9, Figure 10 and Figure 11 are the flow charts using soft package lithium battery cathode tab attachment device of the present invention connection battery pole ear.
Figure 12 is a kind of schematic diagram of the circuit board of soft package lithium battery cathode tab attachment device of the present invention.
1：Step up block 1-1：Grab
2：Lug connection sheet 3：Circuit board
3-1：Hook 3-2：Block
3-3：Buckle 3-4：Wears groove
4：Battery 5：Lug
6：Flexible fingertip 6-1：Contact
7：Fuse 8：The lug connection sheet of positive and negative copper bar
Specific implementation mode
It is of the invention to reach the technological means and effect that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to propose according to the present invention a kind of its specific implementation mode of soft package lithium battery cathode tab attachment device,
Step, structure, feature and its effect are described in detail.
The soft package lithium battery cathode tab attachment device of the present invention is mainly formed by stepping up block 1, lug connection sheet 2 and circuit board 3.
Wherein, wears groove 3-4 is offered on circuit board 3, and block 3-2, lug connection sheet 2 are equipped on the circuit board 3 of the sides wears groove 3-4
It is placed in wears groove 3-4, steps up block 1 and be installed on circuit board 3, flexible fingertip 6 is equipped on stepping up block 1, flexible fingertip 6 has
Contact 6-1, contact 6-1 are contacted with lug connection sheet 2.After multiple batteries 4 are assembled together, their lug 5 passes through shaping
Be superimposed, the lug 5 being superimposed passes through the wears groove 3-4 of circuit board 3, be sandwiched in block 3-2 and lug connection sheet 2 it
Between, it is deformed under contact by stepping up the contact 6-1 of flexible fingertip 6 of block 1, is in close contact with lug connection sheet 2,
As shown in fig. 7, the lug being superimposed 5 is made to be clamped between block 3-2 and lug connection sheet 2.
Circuit board 3 is a connector, as shown in Fig. 5 and Figure 12, hook 3-1 is equipped on circuit board 3, in battery 4
Frame is equipped with buckle, and circuit board 3 is installed on battery 4 by the buckle fastening on hook 3-1 and 4 frame of battery.Such as Fig. 5
Shown, lug connection sheet 2 includes the lug connection sheet 8 of positive and negative copper bar.It is a movable part to step up block 1, be electrical isolation and it is fire-retardant
Plastic products, as shown in Figure 8 and Figure 12, on stepping up block 1 be equipped with hook 1-1, on circuit board 3 be equipped with buckle 3-3, step up
Block 1 is installed on circuit board 3 by grab 1-1 and buckle 3-3 fastenings.As shown in fig. 6, flexible fingertip 6 is spring leaf, it is to make
It for inserts, is embedded in and steps up in block 1, flexible fingertip 6 can be metallic spring, may include multiple contact 6-1, wherein each
The overcurrent capability of contact 6-1 can be more than 25A.
As shown in figure 5, being opened up on circuit board 3, there are two wears groove 3-4, divide on the circuit board 3 on the outside of two wears groove 3-4
It She You not block 3-2.One lug connection sheet 2 of holding is distinguished in two wears groove 3-4.Step up block 1 to be installed on circuit board 3,
Between two lug connection sheets 2.Be respectively equipped with flexible fingertip 6 in the both sides for stepping up block 1, the contact 6-1 of flexible fingertip 6 respectively with
Two lug connection sheets 2 contact.Wherein, the distance between two block 3-2 is less than the length for stepping up block 1 in 6 direction of flexible fingertip
With the sum of the thickness of two lug connection sheets 2, the size of difference is 2 times of the deflection of the contact 6-1 of flexible fingertip 6.
The step of connecting battery pole ear using the soft package lithium battery cathode tab attachment device of the present invention is as follows：First, such as Fig. 9 institutes
Show, circuit board 3 is moved down, the lug being superimposed 5 is made to pass through the wears groove 3-4 on circuit board 3；Then, by integrated
Hook 3-1 on plate 3 is fastened with the buckle on 4 frame of battery, so that circuit board 3 is fastened with battery 4 and is connected, wherein on circuit board 3
Block 3-2 the lug 5 being superimposed is limited in the X direction；Later, as shown in Figure 10, by lug connection sheet 2 positioning and
It is placed in the wears groove 3-4 on circuit board 3, lug connection sheet 2 is made to be bonded with lug 5；Finally, as shown in figure 11, block 1 will be stepped up
It moves down, makes to step up the grab 1-1 and buckle 3-3 on circuit board 3 on block 1 and fasten, the fastening of block 1 will be stepped up in circuit board 3
On, make to step up the flexible fingertip 6 on block 1 and fitted closely with lug connection sheet 2, to which the lug 5 being superimposed to be clamped in
Between block 3-2 and lug connection sheet 2.
As shown in figure 8, the present invention can be connected with fuse 7 on stepping up block 1 between flexible fingertip 6, when external loading is excessive
Or when internal short-circuit of battery, 4 high current overcurrent of battery, fuse 7 disconnects, and battery case power-off makes battery 4 that hot mistake will not occur
Control, will not burn, and then protect battery case, improve the safety that battery case uses.The work(of fuse is carried in addition to making to step up block 1
Can be outer, relay assembly can also be arranged on stepping up block 1 in the present invention, to realize electric cut-out between battery 4.
Equally, the of the invention block 1 that steps up can also expand many functions, such as hydroecium is equipped on stepping up block 1, lead to
It crosses hydroecium on the one hand to radiate or heat for lug connection sheet 2, another aspect hydroecium can also provide pressure to block 1 is stepped up, and make to add
The 1 more difficult loosening of tight block.
Although the present invention has been disclosed as a preferred embodiment, it is so not limited to the range that the present invention is implemented, foundation
Simple equivalent changes and modifications, still fall within technical solution of the present invention made by claims of the present invention and description
In range.
Claims (10)
1. a kind of soft package lithium battery cathode tab attachment device, it is characterised in that it includes：Step up block (1), lug connection sheet (2) and collection
At plate (3)；Wherein, wears groove (3-4) is offered on the circuit board (3), the circuit board in the side the wears groove (3-4)
(3) it is equipped with block (3-2)；The lug connection sheet (2) is placed in the wears groove (3-4)；The block (1) that steps up is installed on
On the circuit board (3), step up to be equipped with flexible fingertip (6) on block (1) described, the flexibility fingertip (6) has contact (6-
1), the contact (6-1) contacts with the lug connection sheet (2)；Under contact, the described of the flexibility fingertip (6) touches
Point (6-1) deforms, and is in close contact with the lug connection sheet (2), being superimposed for the wears groove (3-4) will be passed through multiple
The lug (5) of battery (4) is clamped between the block (3-2) and the lug connection sheet (2).
2. soft package lithium battery cathode tab attachment device as described in claim 1, it is characterised in that wherein on the circuit board (3)
Equipped with hook (3-1), on the frame of the battery (4) be equipped with buckle, the circuit board (3) by the hook (3-1) with
The buckle fastening is installed on the battery (4).
3. soft package lithium battery cathode tab attachment device as described in claim 1, it is characterised in that the wherein described block (1) that steps up is electricity
Insulation and fire-retardant plastic products, the flexibility fingertip (6) are spring leaf.
4. soft package lithium battery cathode tab attachment device as described in claim 1, it is characterised in that the wherein described lug connection sheet (2)
Lug connection sheet (8) including positive and negative copper bar.
5. soft package lithium battery cathode tab attachment device as claimed in claim 4, it is characterised in that the wherein described flexible fingertip (6) is
The overcurrent capability of metallic spring, each contact (6-1) is more than 25A.
6. soft package lithium battery cathode tab attachment device as described in claim 1, it is characterised in that wherein step up on block (1) described
Equipped with hook (1-1), on the circuit board 3 be equipped with buckle (3-3), it is described step up block (1) by the hook (1-1) with
Buckle (3-3) fastening is installed on the circuit board (3).
7. the soft package lithium battery cathode tab attachment device as described in any claim in claim 1 to 6, it is characterised in that wherein
It is opened up on shown circuit board (3) there are two the wears groove (3-4), the circuit board on the outside of two wears grooves (3-4)
(3) block (3-2) is respectively equipped on；The difference lug connection sheet (2) of holding one in two wears grooves (3-4)；Institute
It states and steps up block (1) and be installed on the circuit board (3), between two lug connection sheets (2)；In the block (1) of stepping up
Both sides are respectively equipped with the flexible fingertip (6), the contact (6-1) of the flexibility fingertip (6) respectively with two lugs
Connection sheet (2) contacts；And the distance between two blocks (3-2) is less than the block (1) that steps up in the flexible fingertip (6)
The sum of the thickness of the length in direction and two lug connection sheets (2), the size of difference are the institutes of the flexible fingertip (6)
State the deflection of contact (6-1) 2 times.
8. soft package lithium battery cathode tab attachment device as described in claim 1, it is characterised in that wherein step up on block (1) described
It is connected with fuse (7) between the flexibility fingertip (6), when external loading is excessive or internal short-circuit of battery, the battery (4) is big
Overcurrent, the fuse (7) disconnect, battery case power-off.
9. soft package lithium battery cathode tab attachment device as described in claim 1, it is characterised in that wherein step up on block (1) described
Equipped with hydroecium, by the hydroecium it is that the lug connection sheet (2) is radiated or heated, while the hydroecium returns and described steps up block
(1) pressure is provided, makes described to step up block (1) more difficult loosening.
10. soft package lithium battery cathode tab attachment device as described in claim 1, it is characterised in that wherein step up block (1) described
It is equipped with relay assembly, to realize electric cut-out between the battery (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058891.0A CN105990555B (en) | 2015-02-04 | 2015-02-04 | Soft package lithium battery cathode tab attachment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058891.0A CN105990555B (en) | 2015-02-04 | 2015-02-04 | Soft package lithium battery cathode tab attachment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105990555A CN105990555A (en) | 2016-10-05 |
| CN105990555B true CN105990555B (en) | 2018-09-04 |
Family
ID=57037418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510058891.0A Active CN105990555B (en) | 2015-02-04 | 2015-02-04 | Soft package lithium battery cathode tab attachment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105990555B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218207A (en) * | 2014-07-16 | 2014-12-17 | 浙江超威创元实业有限公司 | Lithium ion battery module structure |
| CN204102979U (en) * | 2014-10-09 | 2015-01-14 | 北京长城华冠汽车科技有限公司 | Battery modules circuit board |
| CN204407399U (en) * | 2015-02-04 | 2015-06-17 | 北京长城华冠汽车科技有限公司 | Soft package lithium battery cathode tab jockey |
-
2015
- 2015-02-04 CN CN201510058891.0A patent/CN105990555B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218207A (en) * | 2014-07-16 | 2014-12-17 | 浙江超威创元实业有限公司 | Lithium ion battery module structure |
| CN204102979U (en) * | 2014-10-09 | 2015-01-14 | 北京长城华冠汽车科技有限公司 | Battery modules circuit board |
| CN204407399U (en) * | 2015-02-04 | 2015-06-17 | 北京长城华冠汽车科技有限公司 | Soft package lithium battery cathode tab jockey |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105990555A (en) | 2016-10-05 |
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| C06 | Publication | ||
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 101300 Renhe Town, Beijing, Shunyi District, the north of the town of Victoria Hospital, the 4 (Science and technology innovation function area), 1 Applicant after: BEIJING CHANGCHENG HUAGUAN AUTOMOBILE TECHNOLOGY CO., LTD. Address before: 101300 Beijing City, Yuhua Tianzhu Airport Industrial Zone B Shunyi District Road No. 29 Applicant before: CH AUTO TECHNOLOGY CORPORATION LTD. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Connecting device for tab of soft-packing lithium battery Effective date of registration: 20190513 Granted publication date: 20180904 Pledgee: Suzhou Trust Co., Ltd. Pledgor: BEIJING CHANGCHENG HUAGUAN AUTOMOBILE TECHNOLOGY CO., LTD. Registration number: 2019990000418 |