CN207834373U - The explosion-proof combined lithium battery cap of bound edge power - Google Patents
The explosion-proof combined lithium battery cap of bound edge power Download PDFInfo
- Publication number
- CN207834373U CN207834373U CN201721278599.0U CN201721278599U CN207834373U CN 207834373 U CN207834373 U CN 207834373U CN 201721278599 U CN201721278599 U CN 201721278599U CN 207834373 U CN207834373 U CN 207834373U
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- China
- Prior art keywords
- burst disk
- bound edge
- explosion
- ring
- 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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- Gas Exhaust Devices For Batteries (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a kind of explosion-proof combined lithium battery cap of bound edge power；Including sealing ring, connection sheet, burst disk and steel cap；Sealing ring includes exterior seal ring and interior cage ring；Interior cage ring lower end inner wall is equipped with inward flange；The first accommodating cavity is formed between inward flange upper surface and interior cage ring, and the second accommodating cavity is formed between inward flange bottom surface and exterior seal ring；Connection sheet is loaded on the first accommodating cavity；Burst disk includes taper mesa-shaped burst disk, circular burst disk and lower bound edge；Steel cap is embedded in lower bound edge, and connection sheet bottom surface is mutually welded with burst disk upper surface.Advantageous effect：Steel cap is embedded in lower bound edge, when explosion rupture is assigned in the second accommodating cavity, then allows to effectively prevent electrolyte from oozing out between steel cap and burst disk so that can preferably seal；Gap between exterior seal ring and interior cage ring is formed as stress release space so that connection sheet protectiveness is unlikely to deform well impaired, and in turn, the utility model is highly practical, and using effect is good.
Description
Technical field
The utility model is related to battery technology fields, in particular, being related to a kind of explosion-proof combined lithium battery of bound edge power
Block.
Background technology
Lithium battery (Lithium battery), as its name suggests, refer in electrochemical system containing lithium (including lithium metal,
Lithium alloy and lithium ion, lighium polymer) battery.Lithium battery can substantially be divided into two major classes：Lithium metal battery and lithium-ion electric
Pond.Lithium metal battery is typically non-rechargeabel, and includes the lithium of metallic state.Lithium ion battery does not contain the lithium of metallic state, and
And it can charge.
Lithium battery in the prior art generally comprises shell, battery roll core and electrolyte in shell, lithium battery
The open end of shell be generally sealed by battery cap, battery roll core and electrolyte are then in be sealed by battery cap
In shell.
And the existing lithium battery for motor bicycle and automobile etc., in charge and discharge, charging and discharging currents generally compare
It is larger, then more gas can be generated because charging and discharging currents are larger in corresponding lithium battery case body, in the case of a high temperature, if
Gas cannot be discharged in time caused by corresponding, after gas expansion, then so that corresponding lithium battery will produce violent explosion so that tight
Ghost image rings the safe handling of lithium battery and seriously endangers the life and health of people.
Thereby, for present situation, a explosion-proof combined lithium battery of bound edge power for motor bicycle and automobile etc. is designed
Block is then necessary so as to lose heart that property is good and safety is good etc. with its matched lithium battery of institute.
Utility model content
Explosion-proof group of a kind of bound edge power provided the purpose of the utility model is to overcome the deficiency of the above-mentioned prior art
Mould assembly lithium battery cap.
Technical solution is used by the utility model solves prior art problem：A kind of explosion-proof combined lithium of bound edge power
Battery cap, including sealing ring, connection sheet, burst disk and steel cap；
Wherein, the upper and lower ends of the sealing ring are all formed as opening；The sealing ring includes the external seal positioned at outer layer
It encloses and is set up in being isolated with the interior of certain interval between the exterior seal ring for the exterior seal ring upper end positioned at internal layer
Circle；The lower end inner wall of the interior cage ring encloses inward flange, the upper surface of the inward flange and the interior cage ring around being equipped with one
Inner wall between be formed as the first accommodating cavity, formed between the bottom surface of the inward flange and the lower end inner wall of the exterior seal ring
For the second accommodating cavity；
The connection sheet is assemblied in first accommodating cavity；
The burst disk includes positioned at intermediate taper mesa-shaped burst disk, positioned at periphery and the taper mesa-shaped burst disk
Outer edge be connected and the circular burst disk being connected and circular be set to the circular burst disk lower face outer
Lower bound edge；The outer diameter of the annular shape burst disk is adapted with the internal diameter of the exterior seal ring, and the circular burst disk
Size be adapted with the size of the inward flange；The explosion rupture is assigned in second accommodating cavity, the steel
Cap is embedded in the lower bound edge, and is mutually welded with the lower bound edge inner wall；The bottom surface of the connection sheet and the burst disk
Upper surface mutually weld.
Above technical scheme is further elaborated below：
Preferably, the upper surface of the inside edge of the circular burst disk and lower face surround offer a circle ditch respectively
Slot.
Preferably, it is uniformly connected between the upper end inner wall of the exterior seal ring and the outer wall of the interior cage ring multiple
Connector, the gap between adjacent two connectors are formed as stress release space.
Preferably, the connection sheet includes being set to below the contact piece positioned at intermediate contact piece, positioned at periphery
Outer diameter spacing collar compatible with the interior cage ring internal diameter and uniformly it is connected to the contact piece outer wall and the spacing collar
Multiple dowel A between inner wall；Gap between the two adjacent dowel A is formed as gas vent.
Preferably, the middle part of the upper surface of the contact piece offers downwards an abutting slot.
Preferably, the burst disk is when being assemblied in second accommodating cavity；It is described annular shape burst disk upper surface with
The bottom surface of the inward flange aligns, the middle part of the upper surface of the taper mesa-shaped burst disk and the bottom surface of the contact piece
It aligns.
Preferably, the steel cap includes being set to above the circular cap piece positioned at intermediate round paste, positioned at periphery
Outer diameter hatband compatible with the exterior seal ring internal diameter and be uniformly connected to the round paste outer wall and the hatband
Multiple dowel B between inner wall；Gap between the two adjacent dowel B is formed as bleeder port.
Preferably, the sealing ring is good toughness and impact-resistant PP is modified material and makes.
The utility model has the beneficial effects that：
One, a kind of explosion-proof combined lithium battery cap of bound edge power provided by the utility model, in the specific implementation,
On the one hand, the burst disk includes positioned at intermediate taper mesa-shaped burst disk, positioned at periphery and the taper mesa-shaped burst disk
Outer edge be connected and the circular burst disk being connected and circular be set to the circular burst disk lower face outer
Lower bound edge, when assembling the utility model, the steel cap is embedded in the lower bound edge, and is mutually welded with the lower bound edge inner wall
It connects, when the explosion rupture is assigned in second accommodating cavity, then allows to effectively prevent electrolyte from the steel cap and institute
It states and oozes out between burst disk so that can preferably seal；On the other hand, the sealing ring includes positioned at the outer close of outer layer
Seal and positioned at internal layer be set up in the exterior seal ring upper end between the exterior seal ring have certain interval in every
From circle, set interior cage ring wraps up the connection sheet, the placement so that it is spaced so that can be effectively protected, accordingly
Gap is then formed as stress release space, so that the utility model to be assemblied in the lithium battery casing open end for being built-in with battery core
When can effectively reduce Inner extrusion power suffered by the connection sheet so that the connection sheet is durable reliable and is unlikely to deform impaired
And fall off and cause open circuit, in turn, the utility model is highly practical, and using effect is good.
Secondly, in the technical scheme, on the one hand, when the connection sheet is mutually welded with the burst disk, to use a little
The mode of weldering is welded, and when battery is abnormal, can first be disconnected the solder joint of spot welding, first open circuit power-off, when inner pressure of battery reaches
It is then explosion again when a certain range so that safe to use, the another aspect of the utility model, in the connection sheet uniformly
Be laid with multiple gas vents, multiple bleeder ports are uniformly laid on the steel cap, on the sealing ring
When assembling the connection sheet, burst disk, flake thermistor and the steel cap, the positions of multiple bleeder ports correspond to it is multiple
The position of the gas vent is opposite one by one, in this way, the utility model to be assemblied in the lithium battery casing opening for being built-in with battery core
Behind end, if whens corresponding lithium battery electric core appearance short circuit or excessively equal internal moisture, then will produce gas in corresponding lithium battery case body
Body, corresponding generated gas uniformly and can be arranged timely by the opposite bleeder port in multiple positions and the gas vent
Go out so that corresponding lithium battery is not likely to produce strong explosion so that corresponding lithium battery is safe to use and is not easy to endanger the life of people
Health, in turn, the using effect of the utility model can effectively improve.
Thirdly, in the present embodiment, on the one hand, the burst disk added can play certain explosion-proof so that
The utility model is good using explosion-proof, and safety in utilization is good, and the burst disk include positioned at intermediate taper mesa-shaped burst disk,
It the circular burst disk being connected and circular is set positioned at being connected with the outer edge of the taper mesa-shaped burst disk for periphery
It is placed in the lower bound edge of the circular burst disk lower face outer；When assembling the utility model, the steel cap is embedded in described
In lower bound edge, and mutually welded with the lower bound edge inner wall, it, then so that can when the explosion rupture is assigned in second accommodating cavity
To effectively prevent electrolyte to be oozed out between the steel cap and the burst disk so that it can preferably seal, another party
Face, set groove then make it possible to effectively reduce the connection between the circular burst disk and the taper mesa-shaped burst disk
Fastness so that the lithium battery interior assembled because it is abnormal have high pressure gas generation when, can effectively pop described circular anti-
Quick-fried and the taper mesa-shaped burst disk so that the taper mesa-shaped burst disk can be quickly open-top from the groove, so that
Convenient for quick air releasing pressure release, in turn, the utility model explosion-proof security is good, and property of losing heart is good so that using effect can reach best.
Description of the drawings
Fig. 1 is the overall structure diagram one of the explosion-proof combined lithium battery cap of the utility model bound edge power；
Fig. 2 is the overall structure diagram two of the explosion-proof combined lithium battery cap of the utility model bound edge power；
Fig. 3 is the exploded view one of the explosion-proof combined lithium battery cap of the utility model bound edge power；
Fig. 4 is the exploded view two of the explosion-proof combined lithium battery cap of the utility model bound edge power；
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Drawing reference numeral：
Sealing ring 10；
Exterior seal ring 1011；Interior cage ring 102；Inward flange 1021；
Connection sheet 20；
Contact piece 201；Abut slot 2011；Spacing collar 202；Dowel A203；
Burst disk 30；
Taper mesa-shaped burst disk 3011；Circular burst disk 3022；Groove 3021；Lower bound edge 303；
Steel cap 40；
Round paste 401；Hatband 402；Dowel B403；
Connector 50；
Stress release space 60；
Gas vent 70；
Bleeder port 80.
Specific implementation mode
The technical solution of the utility model is described in detail below with reference to drawings and the specific embodiments, to become apparent from, directly
See the invention essence that ground understands the utility model.
In conjunction with shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4；
The explosion-proof combined lithium battery cap of a kind of bound edge power provided by the utility model is mainly used as electric single
The block of lithium battery used in vehicle and automobile uses.
Specifically, the utility model includes sealing ring 10, connection sheet 20, burst disk 30 and steel cap 40；
Wherein, the upper and lower ends of the sealing ring 10 are all formed as opening；The sealing ring 10 includes positioned at the outer of outer layer
Sealing ring 101 and positioned at internal layer to be set up in having between the exterior seal ring 101 for 101 upper end of the exterior seal ring certain
The interior cage ring 102 in gap；The lower end inner wall of the interior cage ring 102 encloses inward flange 1021, the inward flange around being equipped with one
Be formed as the first accommodating cavity, the bottom of the inward flange 1021 between 1021 upper surface and the inner wall of the interior cage ring 102
Be formed as the second accommodating cavity between face and the lower end inner wall of the exterior seal ring 101；
The connection sheet 20 is assemblied in first accommodating cavity；
The burst disk 30 includes positioned at intermediate taper mesa-shaped burst disk 301, positioned at periphery and the taper mesa-shaped
The outer edge of burst disk 301 is connected the circular burst disk 302 being connected and circular to be set to the annular shape explosion-proof
The lower bound edge 303 of 302 lower face outer of piece；The internal diameter phase of the outer diameter and the exterior seal ring 101 of the annular shape burst disk 302
Adaptation, and the size of the circular burst disk 302 is adapted with the size of the inward flange 1021；It is described explosion-proof
Piece 30 is assemblied in second accommodating cavity, and the steel cap 40 is embedded in the lower bound edge 303, and in the lower bound edge 303
Wall mutually welds；The bottom surface of the connection sheet 20 and the upper surface of the burst disk 30 are mutually welded.
Also, in the technical scheme, ring is distinguished in the upper surface of the inside edge of the circular burst disk 302 and lower face
Around offering a circle groove 3021.
It is uniformly connected between the upper end inner wall of the exterior seal ring 101 and the outer wall of the interior cage ring 102 multiple
Connector 50, the gap between adjacent two connectors 50 are formed as stress release space 60.
So, on the one hand, the burst disk 30 added can play certain explosion-proof so that the utility model makes
Good with explosion-proof, safety in utilization is good, and the burst disk 30 includes positioned at intermediate taper mesa-shaped burst disk 301, positioned at outer
Being connected with the outer edge of the taper mesa-shaped burst disk 301 for enclosing and circular is set the circular burst disk 302 being connected
It is placed in the lower bound edge 303 of 302 lower face outer of the circular burst disk, when assembling the utility model, the steel cap 40 is embedding
It as in the lower bound edge 303, and is mutually welded with 303 inner wall of lower bound edge, described second is assemblied in the burst disk 30
When accommodating cavity, then allow to that electrolyte is effectively prevent to ooze out between the steel cap 40 and the burst disk 30 so that can be more
Good seals.
On the other hand, the sealing ring 10 includes described positioned at the exterior seal ring 101 of outer layer and positioned at being set up in for internal layer
The interior cage ring 102 with certain interval between the exterior seal ring 101 of 101 upper end of exterior seal ring, it is set it is interior every
From the 102 package connection sheet 20 of circle, the placement so that it is spaced so that can be effectively protected, respective clearance is then formed as
Stress release space 60, so as to can effectively be dropped when the utility model to be assemblied in the lithium battery casing open end for being built-in with battery core
Inner extrusion power suffered by the low connection sheet 20 so that the connection sheet 20 is durable reliable and is unlikely to deform impaired and falls off
And cause open circuit.
Also, set groove 3021 then makes it possible to effectively reduce the circular burst disk 302 and the taper platform
The fastness of connection between shape burst disk 301 so that when the lithium battery interior assembled has high pressure gas generation because of exception, energy
Effectively pop the circular burst disk 302 and the taper mesa-shaped burst disk 301 so that the taper mesa-shaped burst disk 301
Can be quickly open-top from the groove 3021, so as to be convenient for quick air releasing pressure release.
In turn, the utility model is highly practical, and explosion-proof security is good, and using effect is good.
It should be noted that in the specific implementation, the connection sheet 20 includes positioned at intermediate contact piece 201, positioned at outer
The outer diameter spacing collar 202 compatible with 102 internal diameter of interior cage ring for being set to the lower section of the contact piece 201 that encloses and uniformly
The multiple dowel A203 being connected between 202 inner wall of 201 outer wall of the contact piece and the spacing collar；The two adjacent companies
It connects the gap between muscle A203 and is formed as gas vent 70.
The middle part of the upper surface of the contact piece 201 offers downwards an abutting slot 2011, external is set so as to be abutted at it
When standby positive end, can effectively fix the end of external equipment and the end of external equipment is limited so that with it is external
Connectivity is good between equipment end, stationarity is good and is not easy to loosen.
Meanwhile in the specific implementation, the burst disk 30 is when being assemblied in second accommodating cavity；The annular shape is explosion-proof
The upper surface of piece 302 and the bottom surface of the inward flange 1021 align, the upper surface of the taper mesa-shaped burst disk 301 and institute
It states and is aligned in the middle part of the bottom surface of contact piece 201.
And in the present embodiment, the steel cap 40 includes positioned at intermediate round paste 401, positioned at periphery set on described
The outer diameter hatband 402 compatible with 101 internal diameter of the exterior seal ring of the top of round paste 401 and uniformly it is connected to the circle
Multiple dowel B403 between 402 inner wall of 401 outer wall of shape paste and the hatband；Between the two adjacent dowel B403
Gap be formed as bleeder port 80.
For above, on the one hand, when the connection sheet 20 is welded with 30 phase of the burst disk, for by the way of spot welding
Welding can first disconnect the solder joint of spot welding, first open circuit power-off, when battery is abnormal when inner pressure of battery reaches a certain range
Shi Zezai is explosion so that the utility model it is safe to use.
On the other hand, multiple gas vents 70 are uniformly laid in the connection sheet 20, on the steel cap 40
Multiple bleeder ports 80 are uniformly laid with, the connection sheet 20, burst disk 30, sheet heat are assembled on the sealing ring 10
When quick resistance and the steel cap 40, the positions of multiple bleeder ports 80 corresponds to and the position of multiple gas vents 70 phase one by one
It is right, in this way, after the utility model to be assemblied in the lithium battery casing open end for being built-in with battery core, if corresponding lithium battery electric core
Whens appearance short circuit or excessively equal internal moisture, gas is then will produce in corresponding lithium battery case body, corresponding generated gas passes through
The opposite bleeder port 80 in multiple positions and the gas vent 70 can uniformly and timely be discharged so that corresponding lithium battery is not easy
Generating strong explosion so that corresponding lithium battery is safe to use and is not easy to endanger the life and health of people, in turn, the utility model
Explosion-proof security effect can reach best.
You need to add is that in the specific implementation, the sealing ring 10 is good toughness and impact-resistant PP is modified material system
Make so that the utility model overall flexibility is good and impact resistance.
Other embodiment etc., here, not illustrating one by one.
In conclusion the utility model overall structure is simple, easily implement, easy to operate, highly practical, specificity is strong, manufacture
It is at low cost so that the utility model necessarily has good market popularization value, the utility model can be very welcome, can obtain
It is popularized to effective.
The above is only the preferred embodiment of the present invention, is not intended to limit the patent protection model of the utility model
Enclose, the transformation of equivalent structure made by using the description of the utility model and the drawings or equivalent process, or directly or
Other related technical areas are used in indirectly, are equally included in the patent within the scope of the utility model.
Claims (5)
1. a kind of explosion-proof combined lithium battery cap of bound edge power, it is characterised in that：Including sealing ring, connection sheet, burst disk and
Steel cap；
Wherein, the upper and lower ends of the sealing ring are all formed as opening；The sealing ring include positioned at outer layer exterior seal ring and
Positioned at the interior cage ring with certain interval between the exterior seal ring for being set up in the exterior seal ring upper end of internal layer；Institute
The lower end inner wall for stating interior cage ring encloses inward flange, the inner wall of the upper surface of the inward flange and the interior cage ring around being equipped with one
Between be formed as the first accommodating cavity, be formed as second between the bottom surface of the inward flange and the lower end inner wall of the exterior seal ring
Accommodating cavity；
The connection sheet is assemblied in first accommodating cavity；
The burst disk includes positioned at intermediate taper mesa-shaped burst disk, positioned at the outer with the taper mesa-shaped burst disk of periphery
Edge, which is connected, the circular burst disk being connected and circular to be set under the circular burst disk lower face outer
Bound edge；The outer diameter of the annular shape burst disk is adapted with the internal diameter of the exterior seal ring, and the ruler of the circular burst disk
Very little size is adapted with the size of the inward flange；The explosion rupture is assigned in second accommodating cavity, and the steel cap is embedding
As in the lower bound edge, and mutually welded with the lower bound edge inner wall；The bottom surface of the connection sheet is upper with the burst disk
It mutually welds end face；
The upper surface and lower face of the inside edge of the annular shape burst disk surround offer a circle groove respectively.
2. the explosion-proof combined lithium battery cap of bound edge power according to claim 1, it is characterised in that：The exterior seal ring
Upper end inner wall and the outer wall of the interior cage ring between be uniformly connected with multiple connectors, adjacent two connectors it
Between gap be formed as stress release space.
3. the explosion-proof combined lithium battery cap of bound edge power according to claim 2, it is characterised in that：The connection sheet packet
The outer diameter being set to below the contact piece positioned at intermediate contact piece, positioned at periphery is included to be adapted with the interior cage ring internal diameter
Spacing collar and multiple dowel A for being uniformly connected between the contact piece outer wall and the spacing collar inner wall；Adjacent
Gap between the two dowel A is formed as gas vent.
4. the explosion-proof combined lithium battery cap of bound edge power according to claim 3, it is characterised in that：The contact piece
The middle part of upper surface offers downwards an abutting slot.
5. the explosion-proof combined lithium battery cap of bound edge power according to claim 3 or 4, it is characterised in that：It is described explosion-proof
Piece is when being assemblied in second accommodating cavity；The upper surface of the annular shape burst disk and the bottom surface of the inward flange offset
It pastes, is aligned in the middle part of the upper surface of the taper mesa-shaped burst disk and the bottom surface of the contact piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721278599.0U CN207834373U (en) | 2017-09-29 | 2017-09-29 | The explosion-proof combined lithium battery cap of bound edge power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721278599.0U CN207834373U (en) | 2017-09-29 | 2017-09-29 | The explosion-proof combined lithium battery cap of bound edge power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207834373U true CN207834373U (en) | 2018-09-07 |
Family
ID=63384280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721278599.0U Active CN207834373U (en) | 2017-09-29 | 2017-09-29 | The explosion-proof combined lithium battery cap of bound edge power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207834373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690552A (en) * | 2021-08-26 | 2021-11-23 | 东莞凯德新能源有限公司 | Cylindrical lithium battery cap |
-
2017
- 2017-09-29 CN CN201721278599.0U patent/CN207834373U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690552A (en) * | 2021-08-26 | 2021-11-23 | 东莞凯德新能源有限公司 | Cylindrical lithium battery cap |
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