CN207082558U - Flat body li battery shell - Google Patents
Flat body li battery shell Download PDFInfo
- Publication number
- CN207082558U CN207082558U CN201720831559.8U CN201720831559U CN207082558U CN 207082558 U CN207082558 U CN 207082558U CN 201720831559 U CN201720831559 U CN 201720831559U CN 207082558 U CN207082558 U CN 207082558U
- Authority
- CN
- China
- Prior art keywords
- end cap
- hole
- pole
- battery shell
- flat body
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a kind of flat body li battery shell, including housing, end cap and pole, the end cap is provided with through hole, insulation sleeve is provided through on the through hole, the insulation sleeve includes the first frame and second framework portion, first frame and second framework portion abut the two sides of end cap respectively, include conductive part and connecting portion on the pole, the conductive part rivets through the through hole for being arranged with insulation sleeve with connection sheet, the connecting portion radially protruding is in pole both sides and is connected to the first frame, and the connection sheet is connected to the second framework portion.Flat-shaped li battery shell of the present utility model, pole are positioned and fixed by the projection on end cap, sealed between pole and end cap by insulation sleeve, and simple and stable structure, processing cost is low, can save production cost.
Description
Technical field
A kind of technical field of lithium batteries is the utility model is related to, more particularly to a kind of flat body li battery shell.
Background technology
Lithium battery is widely used due to having the advantages that in light weight, small volume, capacitance are larger, charging rate is very fast
In on all kinds of digital, communication products such as notebook computer.However, lithium battery is used to move occasion or vibrates more violent field
Close, such as during for electric vehicle, military use etc., but there occurs the wild effect of battery quality.By long-term use,
It was found that in this kind of occasion use when lithium battery quality wild effect, asked not due to the quality control in production process
Topic, and it is relevant with the structure of lithium battery.
The lithium battery that current this kind of occasion uses, usually quadrate lithium battery, including housing and it is contained in housing just
Cathode pole piece, barrier film and electrolyte, pole piece is provided with lug, shell one end opening, and is covered and be open by cap, cap and housing
Ask and sealing structure is formed by welding, the cap is provided with two electrode fairleads, is connected to anode electrode and draws knot
Structure and negative electrode deriving structure, wherein, described electrode lead-out structure is, by electrode tabs, sealing ring, electrode punching spiral shell
Nail is fastened on cap, or, electrode tabs are screwed on metal electrode post, and electrode column is screwed in shell
Cover extraction.This structure is complicated, high processing costs, has much room for improvement.
Utility model content
The purpose of this utility model is to provide a kind of flat body li battery shell, and its is simple in construction, and processing cost is low, can save
Production cost.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of flat body li battery shell, including housing, end cap and pole, the end cap are provided with through hole, on the through hole
Insulation sleeve is provided through, the insulation sleeve includes the first frame and second framework portion, first frame and the second frame
Body portion does not abut the two sides of end cap, and conductive part and connecting portion are included on the pole, and the conductive part is arranged with through described
The through hole of insulation sleeve rivets with connection sheet, and the connecting portion radially protruding is in pole both sides and is connected to the first frame, described
Connection sheet is connected to the second framework portion.
By using above-mentioned technical proposal, the conductive part of pole is connected after passing through integrally formed insulation sleeve with connection sheet,
Then it is connected by connecting portion with end cap, so as to realize the fixation of pole, connecting portion is connected on the first frame, and connection sheet is supported
It is connected in second framework portion, makes the junction of end cap and pole that there is good sealing, avoid leakage.
Further, the end cap is provided with projection, and screwed hole is provided with the projection, and the connecting portion is provided with and institute
State the positioning hole that projection is engaged.
By using above-mentioned technical proposal, the projection on positioning hole and end cap on connecting portion coordinates, and realizes determining for pole
Position, then bolt is connected through positioning hole with screwed hole, so as to which pole is fixed on end cap.
Further, the connection sheet is " U "-shaped.
By using above-mentioned technical proposal, " U "-shaped connection sheet increases the contact area with electrolyte, accelerates a little
Speed is solved, so as to ensure the supply voltage of lithium battery.
Further, the end cap is provided with the boss coordinated with the shell nozzle.
By using above-mentioned technical proposal, the boss and shell nozzle clamping, end cap is set to be completely embedded with housing.
Further, the end cap is provided with pressure-regulating valve between described two contiguous blocks.
By using above-mentioned technical proposal, the setting of pressure-regulating valve, when end cap and housing form closed cavity pressure mistake
When big, decompression can be played a part of.
Further, the neck of the frame of clamping first is provided with the end cap positioned at through hole edge.
By using above-mentioned technical proposal, the setting of neck, to the first framework Horizontal limiting, make the first framework on end cap
Fixing-stable.
Further, the end cap is provided with liquid injection hole.
By using above-mentioned technical proposal, the setting of injected hole, for forming closed cavity injection electricity to end cap and housing
Solve liquid.
Further, the housing is in flat-shaped cuboid.
By using above-mentioned technical proposal, housing is in flat-shaped cuboid, is easily installed in cabinet.
Further, the pole is provided with connecting hole.
By using above-mentioned technical proposal, binding post is connected by connecting hole with pole.
Further, the insulation sleeve is flexible rubber lagging.
By using above-mentioned technical proposal, flexible rubber lagging extrudes with other workpiece, can increase the sealing of insulation sleeve.
In summary, the utility model has the advantages that：Flat-shaped li battery shell of the present utility model, pole by
Projection on end cap positions and fixes, and is sealed between pole and end cap by insulation sleeve, and simple and stable structure, processing cost is low,
Production cost can be saved.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is part explosive view of the present utility model.
In figure, 1, housing；2nd, end cap；21st, through hole；22nd, projection；23rd, screwed hole；24th, boss；25th, pressure-regulating valve；
26th, neck；27th, liquid injection hole；3rd, pole；31st, conductive part；32nd, connecting portion；33rd, positioning hole；34th, connecting hole；4th, insulation sleeve；41、
First frame；42nd, second framework portion；5th, connection sheet.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in the scope of protection of the utility model by Patent Law.
A kind of flat body li battery shell, as depicted in figs. 1 and 2, including housing 1, end cap 2 and pole 3.Housing 1 is in flat-shaped
Cuboid.Wherein, pole 3 includes connecting portion 32 and conductive part 31, and the lower section that conductive part 31 is located at pole 3 is in cuboid,
The radially protruding of connecting portion 32 on the both sides of pole 3, connecting portion 32 through there is positioning hole 33.It is provided with end cap 2 and positioning hole
33 projections 22 to match, screwed hole 23 is provided with projection 22.Through hole 21, the conductive part 31 of pole 3 are further opened with end cap 2
Through hole 21 is passed through under the positioning of positioning hole 33 and projection 22, and can be coordinated by the screwed hole 23 on bolt and projection 22 solid
It is fixed.The bottom of conductive part 31 rivets with connection sheet 5.
Insulation sleeve 4 is socketed with by through hole 21 on end cap 2, insulation sleeve 4 includes the first frame 41 and second framework portion 42,
And insulation sleeve 4 is flexible rubber insulation sleeve 4.By insulation sleeve 4 when end cap 2 is installed, the first frame 41 need to pass through deformation
Through through hole 21, then it is fixed on the neck 26 at the edge of through hole 21.
Pressure-regulating valve 25 is provided between two poles 3 on end cap 2, confined air can be formed in end cap 2 and housing 1
When cavity pressure is excessive, play a part of decompression.The edge of end cap 2 is provided with liquid injection hole 27, for injecting electrolysis into housing 1
Liquid.In the present embodiment, pole 3 shares two, and two connecting holes 34 are provided with each pole 3.Connection sheet 5 is " U "-shaped, can
Increase its contact area with electrolyte.The boss 24 for being open and fastening with housing 1 is provided with end cap 2, makes end cap 2 and housing
1 buckle is close.
Mounting means of the present utility model, through hole 21 will be passed through after the deformation of insulation sleeve 4 first, fix the first frame 41
On neck 26, then conductive part 31 is passed through under the positioning of positioning hole 33 and projection 22 and is socketed with insulation sleeve 4 by pole 3
Through hole 21, pole 3 is connected on the first frame 41, be threadedly coupled with bolt with the screwed hole 23 on projection 22, make pole 3
It is fixed on end cap 2, connection sheet 5 is riveted on the bottom of conductive part 31 afterwards, and now connection sheet 5 pushes against second framework portion
42, finally end cap 2 is connected on housing 1 by boss 24, and to connecting out carry out spot welding seal.So far, flat body lithium battery
Shell installation.
Claims (10)
1. a kind of flat body li battery shell, including housing (1), end cap (2) and pole (3), it is characterized in that：On the end cap (2)
Provided with through hole (21), insulation sleeve (4) is provided through on the through hole (21), the insulation sleeve (4) includes the first frame
(41) and second framework portion (42), first frame (41) and second framework portion (42) abut the two sides of end cap (2) respectively,
Include conductive part (31) and connecting portion (32) on the pole (3), the conductive part (31) is arranged with insulation sleeve (4) through described
Through hole (21) and connection sheet (5) rivet, connecting portion (32) radially protruding is in pole (3) both sides and is connected to the first framework
Portion (41), the connection sheet (5) are connected to the second framework portion (42).
2. flat body li battery shell according to claim 1, it is characterized in that：The end cap (2) is provided with projection (22), institute
State and screwed hole (23) is provided with projection (22), the connecting portion (32) is provided with the positioning hole being engaged with the projection (22)
(33)。
3. flat body li battery shell according to claim 2, it is characterized in that：The connection sheet (5) is " U "-shaped.
4. flat body li battery shell according to claim 1, it is characterized in that：The end cap (2) is provided with and the housing
(1) boss (24) that opening coordinates.
5. flat body li battery shell according to claim 1, it is characterized in that：The end cap (2) is located at described two connections
Pressure-regulating valve (25) is provided between block.
6. flat body li battery shell according to claim 1, it is characterized in that：It is located at through hole (21) side on the end cap (2)
Edge is provided with the neck (26) of the frame of clamping first (41).
7. flat body li battery shell according to claim 1, it is characterized in that：The end cap (2) is provided with liquid injection hole (27).
8. flat body li battery shell according to claim 1, it is characterized in that：The housing (1) is in flat-shaped cuboid.
9. flat body li battery shell according to claim 1, it is characterized in that：The pole (3) is provided with connecting hole (34).
10. flat body li battery shell according to claim 1, it is characterized in that：The insulation sleeve (4) is flexible rubber lagging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720831559.8U CN207082558U (en) | 2017-07-11 | 2017-07-11 | Flat body li battery shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720831559.8U CN207082558U (en) | 2017-07-11 | 2017-07-11 | Flat body li battery shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207082558U true CN207082558U (en) | 2018-03-09 |
Family
ID=61425737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720831559.8U Expired - Fee Related CN207082558U (en) | 2017-07-11 | 2017-07-11 | Flat body li battery shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207082558U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113707977A (en) * | 2021-08-20 | 2021-11-26 | 上海派能能源科技股份有限公司 | Pole type lithium battery cover plate and pole type lithium battery |
-
2017
- 2017-07-11 CN CN201720831559.8U patent/CN207082558U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113707977A (en) * | 2021-08-20 | 2021-11-26 | 上海派能能源科技股份有限公司 | Pole type lithium battery cover plate and pole type lithium battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 Termination date: 20210711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |