CN207719259U - Combined anti-explosion cap assembly and battery - Google Patents
Combined anti-explosion cap assembly and battery Download PDFInfo
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- CN207719259U CN207719259U CN201721677873.1U CN201721677873U CN207719259U CN 207719259 U CN207719259 U CN 207719259U CN 201721677873 U CN201721677873 U CN 201721677873U CN 207719259 U CN207719259 U CN 207719259U
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- China
- Prior art keywords
- cavity
- cap assembly
- lithium cell
- combined anti
- explosion
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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)
Abstract
The utility model proposes a kind of Combined anti-explosion cap assembly and batteries, are related to battery protection technical field.The Combined anti-explosion cap assembly includes shell and proof assembl, the shell includes the holding part and interconnecting part being connected with each other, the holding part is for housing lithium cell, the proof assembl is arranged in the interconnecting part and the first cavity and the second cavity is collectively formed with the interconnecting part, first cavity is connected to the lithium cell, and second cavity is connected to outside；The proof assembl is used to generate deformation under the pressure effect for the gas that the lithium cell generates.When the gas increase that the first cavity internal cause lithium cell generates causes air pressure gradually to increase, the pressure effect of the gas of the proof assembl in the first cavity is lower to generate deformation, prevents inside battery from exploding because air pressure is excessively high, improves the security performance of battery.The battery structure is simple, easy to process, and explosion-proof performance is more excellent.
Description
Technical field
The utility model is related to battery protection technical field, in particular to a kind of Combined anti-explosion cap assembly and
Battery.
Background technology
With the development of science and technology, battery is as a kind of energy source, because with simple in structure, powered stable, easy to carry
The advantages that, being played in the various aspects of the modern life has great role.And with the extensive application of battery, security performance
It has been to be concerned by more and more people.For example, when battery leads to inner pressure of battery because the failure causes such as leakage occur in internal short-circuit, inside
Lasting to increase, inside battery produces a large amount of gas at this time, if these gases cannot be discharged or be discharged in time, it will cause
Cell internal pressure is excessive and explodes, and causes safety accident.
Therefore, how when battery occurs abnormal, the internal bulk gas generated can be discharged in time, avoid battery explosion
The danger of generation improves the security performance of battery, is all the emphasis of those skilled in the art's concern all the time.
Utility model content
The purpose of this utility model is to provide a kind of Combined anti-explosion cap assemblies, to realize when inside battery is because occurring
When failure generates bulk gas, prevents inside battery from exploding because air pressure is excessively high, improve the security performance of battery.
The purpose of this utility model, which also resides in, provides a kind of battery, to realize when inside battery generates largely because breaking down
It when gas, prevents inside battery from exploding because air pressure is excessively high, improves the security performance of battery.
To achieve the goals above, the technical solution that the utility model embodiment uses is as follows：
In a first aspect, the utility model proposes a kind of Combined anti-explosion cap assembly, it is applied to battery, the battery includes
Lithium cell.The Combined anti-explosion cap assembly includes shell and proof assembl, and the shell includes the holding part being connected with each other
And interconnecting part, the holding part for housing the lithium cell, the proof assembl be arranged in the interconnecting part and with it is described
The first cavity and the second cavity is collectively formed in interconnecting part, and first cavity is connected to the lithium cell, second cavity with
Outside connection；The proof assembl is used to generate deformation under the pressure effect for the gas that the lithium cell generates.
Further, the proof assembl includes burst disk, and the burst disk is equipped with the groove of predetermined depth, and described
Groove is connected to first cavity.
Further, the Combined anti-explosion cap assembly includes circuit board, and the proof assembl includes burst disk and company
Fishplate bar, the burst disk and the circuit board electrical connection, the connecting plate are electrically connected with the lithium cell, and the burst disk can divide
It is liftoff to be arranged on connecting plate.
Further, first through hole is set on the connecting plate, and the first through hole is connected to first cavity, is used for
The gas that the lithium cell generates is allowed to pass through.
Further, the second through-hole is also set up in the interconnecting part, second cavity is by second through-hole and outside
Portion is connected to.
Further, the Combined anti-explosion cap assembly further includes washer, washer setting the interconnecting part simultaneously
A circular passage is surrounded, second through-hole is connected to the circular passage.
Further, the Combined anti-explosion cap assembly further includes partition board, partition board setting in the holding part and
Between the interconnecting part.
Further, the partition board is equipped with multiple ventholes, and the multiple venthole is connected to first cavity, institute
The gas for stating lithium cell generation enters first cavity by the multiple venthole.
Further, the burst disk uses metal material.
Second aspect, the utility model also propose that a kind of battery, the battery include lithium cell and Combined anti-explosion block
Component.The Combined anti-explosion cap assembly includes shell and proof assembl, the shell include the holding part being connected with each other and
Interconnecting part, the holding part for housing the lithium cell, the proof assembl be arranged in the interconnecting part and with the company
The first cavity and the second cavity is collectively formed in logical portion, and first cavity is connected to the lithium cell, second cavity with it is outer
Portion is connected to；The proof assembl is used to generate deformation under the pressure effect for the gas that the lithium cell generates.
Compared with the prior art, the utility model has the advantages that：
Combined anti-explosion cap assembly and battery provided by the utility model, the battery include that lithium cell and combined type are anti-
Quick-fried cap assembly, the Combined anti-explosion cap assembly include shell and proof assembl, and the shell includes the accommodating of interconnection
Portion and interconnecting part, the holding part for housing the lithium cell, the proof assembl be arranged in the interconnecting part and with institute
It states interconnecting part and the first cavity and the second cavity is collectively formed, first cavity is connected to the lithium cell, second cavity
It is connected to outside；The proof assembl is used to generate deformation under the pressure effect for the gas that the lithium cell generates.This first
When the gas increase that cavity internal cause lithium cell generates causes air pressure gradually to increase, the gas of the proof assembl in the first cavity
Pressure effect is lower to generate deformation, prevents inside battery from exploding because air pressure is excessively high, improves the security performance of battery.The battery knot
Structure is simple, easy to process, and explosion-proof performance is more excellent.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment cited below particularly, and
The appended attached drawing of cooperation, is described in detail below.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 shows the sectional view for the Combined anti-explosion cap assembly that the utility model first embodiment is provided.
Fig. 2 shows the structural schematic diagrams for the washer that the utility model embodiment is provided.
Fig. 3 shows the sectional view for the Combined anti-explosion cap assembly that the utility model second embodiment is provided.
Fig. 4 shows the floor map of the proof assembl provided by the utility model second embodiment.
Icon：100- Combined anti-explosion cap assemblies；200- lithium cells；101- metal columns；102- positive wires；110- shells
Body；120- proof assembls；The first cavitys of 130-；The second cavitys of 140-；150- circuit boards；160- partition boards；170- washers；180- rings
Shape channel；112- holding parts；114- interconnecting parts；121- burst disks；122- connecting plates；123- grooves；The second through-holes of 151-；161-
Venthole；171- is open；1221- first through hole.
Specific implementation mode
Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be come with a variety of different configurations
Arrangement and design.Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit below
Claimed the scope of the utility model, but it is merely representative of the selected embodiment of the utility model.Based on the utility model
Embodiment, the every other embodiment that those skilled in the art are obtained without making creative work, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.Meanwhile it is new in this practicality
In the description of type, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relatively important
Property.
First embodiment
Fig. 1 is please referred to, by the section view for the Combined anti-explosion cap assembly 100 that the utility model first embodiment provides
Figure.In the present embodiment, which is applied to battery, for preventing inside battery from being generated because of failure
It explodes when bulk gas.
The Combined anti-explosion cap assembly 100 includes shell 110 and proof assembl 120, and the shell 110 includes mutual
The holding part 112 and interconnecting part 114 of connection.The holding part 112 is used for the lithium cell 200 of set battery.The proof assembl
The first cavity 130 and the second cavity 140, institute is collectively formed in the interconnecting part 114 and with the interconnecting part 114 in 120 settings
The first cavity 130 to be stated not to be connected between each other with the second cavity 140, first cavity 130 is connected to the lithium cell 200,
Second cavity 140 is connected to outside.The gas that the proof assembl 120 is used to generate in the lithium cell 200 enters institute
After stating the first cavity 130, deformation is generated under the pressure effect of gas, battery explosion is prevented, improves the safety of battery
Performance.
In the present embodiment, the Combined anti-explosion cap assembly 100 further includes circuit board 150, and the circuit board 150 is set
It sets in the interconnecting part 114, the proof assembl 120 includes burst disk 121 and connecting plate 122, the burst disk 121 and institute
The electrical connection of circuit board 150 is stated, the connecting plate 122 is electrically connected with the lithium cell 200, and the burst disk 121 is separably set
It sets on connecting plate 122.
Specifically, the connecting plate 122 is fixed in the interconnecting part 114, the burst disk 121 and the circuit board
It can be realized and be electrically connected by metal column 101 between 150, can drawn by anode between the connecting plate 122 and the lithium cell 200
Line 102 realizes electrical connection, and the bottom of the burst disk 121 is realized with the connecting plate 122 by spot welding separably attached.It can
To understand ground, in the present embodiment, lithium cell 200 passes through positive wire 102, connecting plate 122, burst disk 121, metal column 101
Realization is electrically connected with circuit board 150, to ensure that the normal work of battery, for example, the circuit board 150 can be to lithium cell 200
The voltage of output carries out the output voltage as battery after decompression processing.
In the present embodiment, first through hole 1221, the first through hole 1221 and institute are additionally provided on the connecting plate 122
The connection of the first cavity 130 is stated, the gas for allowing the lithium cell 200 to generate passes through.
It should be noted that in the present embodiment, the burst disk 121 is preferably made of metal material, it is described explosion-proof
The bottom of piece 121 is arc-shaped, it is preferable that the burst disk 121 has certain elasticity, and shape can occur when being acted on by the pressure of gas
Become.
Further, the Combined anti-explosion cap assembly 100 further includes partition board 160, and the partition board 160 is arranged described
Between holding part 112 and the interconnecting part 114.Specifically, the partition board 160 be equipped with multiple ventholes 161, it is the multiple go out
Stomata 161 is connected to first cavity 130, and the gas that the lithium cell 200 generates is entered by the multiple venthole 161
Then first cavity 130 is entered by first through hole 1221 between connecting plate 122 and burst disk 121, the burst disk
121 bottom deforms upon under the pressure effect of gas and is detached with connecting plate 122.
Further, the second through-hole 151 is also set up in the interconnecting part 114, second cavity 140 passes through described second
Through-hole 151 is connected to outside.Preferably, in the present embodiment, second through-hole 151 is arranged on the circuit board 150.
Specifically, the Combined anti-explosion cap assembly 100 further includes washer 170, and the washer 170 is arranged in the company
Logical portion 114 simultaneously surrounds a circular passage 180, and second through-hole 151 is connected to the circular passage 180, the circular passage
180 are directly connected to outside.
Further, as shown in Fig. 2, after washer 170 is mounted on circuit board 150, if washer 170 is just circuit
The second through-hole 151 closing on plate 150, causes gas to cannot be introduced into circular passage 180 after by the second through-hole 151 to outside
It, can be on the washer 170 towards the setting of circular passage 180 opening 171, the position of the opening 171 and the second through-hole when discharge
151 position corresponds to, and second through-hole 151 is connected to by the opening 171 with the circular passage 180, to realize gas
Body enters circular passage 180 by the second through-hole 151 and opening 171, and gas is discharged to the outside by realization.
The operation principle for the Combined anti-explosion cap assembly 100 that the present embodiment is provided is：
When the lithium cell 200 of inside battery generates gas because breaking down, gas enters the by multiple ventholes 161
Then one cavity 130 is entered by first through hole 1221 between connecting plate 122 and burst disk 121, the bottom of burst disk 121 exists
It deforms upon and is detached with connecting plate 122 under the pressure effect of gas, at this time between lithium cell 200 and circuit board 150
Circuit has disconnected, battery cisco unity malfunction, i.e., lithium cell 200 also cannot continue generation gas by electrolysis again leads to battery
Air pressure inside, which further increases, explodes.In addition, when the gas that lithium cell 200 generates is excessive, the bottom of burst disk 121 exists
It is deformed upon under the pressure effect of gas, is not only detached with connecting plate 122 or even bottom can occur to break because air pressure is excessive
Split, the first cavity 130 is connected to the second cavity 140 at this time, the gas in the first cavity 130 by second cavity 140 to
Outside discharge；Specifically, entered and the by the second through-hole 151 for being arranged on circuit board 150 into the gas of the second cavity 140
Gas is discharged to the outside by the circular passage 180 of two through-holes 151 connection, realization, that is, is realized and carried out quick pressure releasing to battery, prevent
Battery explosion improves the security performance of battery.
Second embodiment
Fig. 3 is please referred to, by the section view for the Combined anti-explosion cap assembly 100 that the utility model second embodiment provides
Figure.The Combined anti-explosion cap assembly 100 includes shell 110 and proof assembl 120, and the shell 110 includes being connected with each other
Holding part 112 and interconnecting part 114.The holding part 112 is used for the lithium cell 200 of set battery.The proof assembl 120 is set
It sets in the interconnecting part 114 and is collectively formed the first cavity 130 and the second cavity 140 with the interconnecting part 114, described first
Cavity 130 is not connected between each other with the second cavity 140, and first cavity 130 is connected to the lithium cell 200, and described
Two cavitys 140 are connected to outside.The gas that the proof assembl 120 is used to generate in the lithium cell 200 enters described first
After cavity 130, deformation is generated under the pressure effect of gas, battery explosion is prevented, improves the security performance of battery.
As shown in figure 4, for the floor map of the proof assembl 120.In the present embodiment, the proof assembl 120
Including burst disk 121, the burst disk 121 is equipped with the groove 123 of predetermined depth, and the groove 123 and first chamber
Body 130 is connected to.After the gas that lithium cell 200 generates makes the pressure in the first cavity 130 reach to a certain degree, the burst disk
121 can be broken at groove 123 first under pressure so that gas is entered by the breaking part in burst disk 121
It is discharged to outside after second cavity 140.Preferably, the groove 123 is multiple, when so that burst disk 121 being broken, is split
Groove 123 it is more, be conducive to improve the flowing velocity that the gas in the first cavity 130 enters in the second cavity 140, make gas
Quick release is obtained, the security performance of battery is further increased.
In the present embodiment, the burst disk 121 is electrically connected with the circuit board 150 by the realization of the metal column 101,
The burst disk 121 is electrically connected with the lithium cell 200 by the realization of the positive wire 102, it is possible to understand that ground, in this implementation
In example, the lithium cell 200 is realized by positive wire 102, proof assembl 120, metal column 101 and is electrically connected with circuit board 150,
Battery is set to work normally.
It should be noted that in the present embodiment, to the shape of groove 123, quantity and the setting position in burst disk 121
It sets and is not limited.
The operation principle for the Combined anti-explosion cap assembly 100 that the present embodiment is provided is：
When the lithium cell 200 of inside battery generates gas because breaking down, gas enters the by multiple ventholes 161
One cavity 130 deforms upon under the pressure effect of gas of the burst disk 121 in the first cavity 130, first in groove
It is broken at 123, the first cavity 130 is connected to the second cavity 140 at this time, and the gas in the first cavity 130 passes through burst disk
Breaking part on 121 enters the second cavity 140.Specifically, into the gas of the second cavity 140 by being arranged on circuit board 150
The second through-hole 151 enter the circular passage 180 that be connected to the second through-hole 151, gas is discharged to the outside by realization, i.e. realization pair
Battery carries out quick pressure releasing, prevents battery explosion, improves the security performance of battery.
In conclusion Combined anti-explosion cap assembly and battery that the utility model embodiment provides, the battery include
Lithium cell and Combined anti-explosion cap assembly, which, which is used to generate gas in lithium cell, causes in battery
When portion's air pressure is excessive, by being discharged and being discharged to gas in time, reduces the pressure of inside battery, avoid the generation of explosion.
The Combined anti-explosion cap assembly includes shell and proof assembl, and the shell includes the holding part and interconnecting part being connected with each other,
For the holding part for housing the lithium cell, the proof assembl setting is in the interconnecting part and common with the interconnecting part
The first cavity and the second cavity are formed, first cavity is connected to the lithium cell, and second cavity is connected to outside；Institute
Proof assembl is stated for generating deformation under the effect of the pressure for the gas that the lithium cell generates.When the proof assembl includes explosion-proof
When piece and the connecting plate being connect with burst disk, the bottom of burst disk deforms upon under the pressure effect for the gas that lithium cell generates
And detached with connecting plate, avoid lithium cell work on generate gas make inside battery air pressure continue increase and explode, if
The bottom of burst disk is directly broken through by gas, then the first cavity is connected to the second cavity, after gas enters the second cavity, by the
Two through-holes enter circular passage, and gas is discharged for realization.When the proof assembl includes that reeded burst disk is arranged, burst disk
Under the pressure effect of gas, it is broken first in groove, the gas in the first cavity passes through the breaking part in burst disk
Enter circular passage into the second cavity, then by the second through-hole, gas is discharged, so that cell internal pressure is reduced, keep away by realization
The generation for having exempted from explosion, ensure that the safe handling of battery.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.It should be noted that
It arrives：Similar label and letter indicate similar terms in following attached drawing, therefore, once determined in a certain Xiang Yi attached drawing
Justice further need not then be defined and explained to it in subsequent attached drawing.
Claims (10)
1. a kind of Combined anti-explosion cap assembly is applied to battery, the battery includes lithium cell, which is characterized in that described group
Box-like explosion-proof cap component includes shell and proof assembl, and the shell includes the holding part and interconnecting part being connected with each other, described
Holding part is arranged in the interconnecting part and is collectively formed with the interconnecting part for housing the lithium cell, the proof assembl
First cavity and the second cavity, first cavity are connected to the lithium cell, and second cavity is connected to outside；It is described anti-
Quick-fried component is used to generate deformation under the pressure effect for the gas that the lithium cell generates.
2. Combined anti-explosion cap assembly as described in claim 1, which is characterized in that the proof assembl includes burst disk,
The burst disk is equipped with the groove of predetermined depth, and the groove is connected to first cavity.
3. Combined anti-explosion cap assembly as described in claim 1, which is characterized in that the Combined anti-explosion cap assembly packet
Include circuit board, the proof assembl includes burst disk and connecting plate, the burst disk and the circuit board electrical connection, the connection
Plate is electrically connected with the lithium cell, and the burst disk is detachably provided on connecting plate.
4. Combined anti-explosion cap assembly as claimed in claim 3, which is characterized in that it is logical that first is arranged on the connecting plate
Hole, the first through hole are connected to first cavity, and the gas for allowing the lithium cell to generate passes through.
5. the Combined anti-explosion cap assembly as described in claim 2-4 any one, which is characterized in that in the interconnecting part also
Second through-hole is set, and second cavity is connected to by second through-hole with outside.
6. Combined anti-explosion cap assembly as claimed in claim 5, which is characterized in that the Combined anti-explosion cap assembly is also
Including washer, the washer is arranged in the interconnecting part and surrounds a circular passage, second through-hole and the circular passage
Connection.
7. the Combined anti-explosion cap assembly as described in claim 2-4 any one, which is characterized in that the Combined anti-explosion
Cap assembly further includes partition board, and the partition board is arranged between the holding part and the interconnecting part.
8. Combined anti-explosion cap assembly as claimed in claim 7, which is characterized in that the partition board is equipped with multiple outlets
Hole, the multiple venthole are connected to first cavity, the gas that the lithium cell generates by the multiple venthole into
Enter first cavity.
9. the Combined anti-explosion cap assembly as described in claim 2-4 any one, which is characterized in that the burst disk uses
Metal material.
10. a kind of battery, including lithium cell, which is characterized in that the battery further includes claim 1-9 any one of them groups
Box-like explosion-proof cap component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677873.1U CN207719259U (en) | 2017-12-04 | 2017-12-04 | Combined anti-explosion cap assembly and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677873.1U CN207719259U (en) | 2017-12-04 | 2017-12-04 | Combined anti-explosion cap assembly and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207719259U true CN207719259U (en) | 2018-08-10 |
Family
ID=63059636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721677873.1U Active CN207719259U (en) | 2017-12-04 | 2017-12-04 | Combined anti-explosion cap assembly and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207719259U (en) |
-
2017
- 2017-12-04 CN CN201721677873.1U patent/CN207719259U/en active Active
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