CN209199991U - A kind of battery cover board assembly and battery - Google Patents
A kind of battery cover board assembly and battery Download PDFInfo
- Publication number
- CN209199991U CN209199991U CN201822013377.7U CN201822013377U CN209199991U CN 209199991 U CN209199991 U CN 209199991U CN 201822013377 U CN201822013377 U CN 201822013377U CN 209199991 U CN209199991 U CN 209199991U
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- battery
- cover board
- short
- circuit structure
- pole
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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
Abstract
The utility model provides a kind of battery cover board assembly and battery, cover plate assembly includes cover board body, pole plate and pole plate gasket, cover board body is fixedly installed on the upper surface of battery body, pole plate is set to cover board body far from battery side, pole plate gasket is set between pole plate and cover board body, the pole of battery body is discontiguous to pass through cover board body and pole plate gasket, connect with the conductive part of pole plate, and cover plate assembly further includes the short-circuit structure that can be conductive being connected with pole；Short-circuit structure has first position state and second position state, and when short-circuit structure is in first position state, short-circuit structure is separated with cover board body, and electric current flows into the battery body by the pole；When short-circuit structure is in second position state, short-circuit structure is connected with cover board body, and electric current flows into cover board body by pole, short-circuit structure.Battery cover board assembly in the application ensure that the safety in utilization of battery and battery modules, effect are obvious, it is proposed that large-scale promotion uses.
Description
Technical field
The utility model relates to battery technology fields, and in particular to a kind of battery cover board assembly and battery.
Background technique
Ternary battery in the production and use process, can generate bulk gas in inside battery due to self-characteristic,
Cause cell internal pressure larger, will affect the thing that battery normal use, or even generation explosion etc. endanger personal safety when serious
Therefore when especially series-connected cell group works, often because the failure of single battery, leads to the failure and explosion of entire battery pack
Danger seriously affects the normal use of battery.
Utility model content
In view of this, one of the purpose of this utility model is to provide a kind of battery cover board assembly and uses the battery cover board
The battery of component, the using security issues of battery when cell internal pressure is excessive in the prior art with solution.
In order to achieve the above objectives, the utility model uses following technical scheme:
A kind of battery cover board assembly, is connected with battery body, including cover board body, pole plate and pole plate gasket, the cover board
Ontology is fixedly installed on the upper surface of battery body, and the pole plate is set to the cover board body far from battery side, the pole
Plate gasket is set between the pole plate and the cover board body, and the pole of the battery body is discontiguous to pass through the cover board
Ontology and the pole plate gasket, connect with the conductive part of the pole plate, and the cover plate assembly further includes being connected with the pole
It is capable of the short-circuit structure of conduction；
The short-circuit structure has first position state and second position state, when the short-circuit structure is in first position
When state, the short-circuit structure is separated with the cover board body, and electric current flows into the battery body by the pole；
When the short-circuit structure is in second position state, the short-circuit structure is connected with the cover board body, electric current
The cover board body is flowed by the pole, the short-circuit structure.
Preferably, the side close to the battery body of the cover board body is arranged in the short-circuit structure, described short
Binding structure is laminated structure, and the laminated structure has protrusion, described convex when the short-circuit structure is in first position state
Portion is protruded towards the battery body side out, and when the short-circuit structure is in second position state, the protrusion is towards far
It is protruded from the battery body side.
Preferably, the protrusion of the short-circuit structure can generate deformation, and the protrusion is used in the battery body
Internal pressure when reaching the first predetermined pressure, the protrusion direction of the protrusion towards the side of the battery body from becoming
Side far from the battery body.
Preferably, it is provided with through-hole on the pole plate gasket, it is described short when the short-circuit structure is in second position state
The protrusion of binding structure partially passes through the through-hole and is connected with the cover board body.
Preferably, contact portion is provided on the protrusion, the contact portion is column construction, and the contact portion setting exists
The side close to the cover board body of the short-circuit structure, when the short-circuit structure is in second position state, the contact
Portion passes through the through-hole and is connected with the insulation division of the pole plate.
Preferably, the contact portion is structure as a whole with the laminated structure.
Preferably, the cover plate assembly further includes explosion-proof valve, and the explosion-proof valve is arranged on the cover board body, described anti-
Quick-fried valve is used for the unlatching when the internal pressure of the battery body reaches the second specified pressure.
To achieve the above object, the another technical solution that the utility model uses:
A kind of battery, including battery body, the battery further include battery cover board assembly as described above.
Preferably, the shell of the battery is rectangular, and the upper cover plate of the shell uses the battery cover board assembly.
Preferably, the battery includes ter-polymers lithium battery.
Battery cover board assembly in the application and the battery using the cover plate assembly, by the way that short-circuit structure is arranged, in battery
When internal pressure is excessive, short-circuits the battery and carry out short-circuit protection, solving after exception occurs in single battery in battery modules influences
The technical issues of entire battery modules work, it ensure that the safety in utilization of battery and battery modules, effect are obvious, it is proposed that big rule
Mould is promoted the use of.
Detailed description of the invention
By referring to the drawings to the description of the utility model embodiment, the above-mentioned and other mesh of the utility model
, feature and advantage will be apparent from, in the accompanying drawings:
Fig. 1 shows the battery cover board assembly explosive view of specific embodiment of the present invention offer；
Fig. 2 shows the laminated structure tomographs that specific embodiment of the present invention provides；
Fig. 3 shows the main view of the laminated structure of specific embodiment of the present invention offer.
In figure:
1, short-circuit structure；11, laminated structure；111, protrusion；112, contact portion；
2, cover board body；21, the through-hole of cover board body；
3, pole plate；31, conductive part；32, insulation division；
4, pole plate gasket；41, the through-hole of pole plate gasket；
5, pole；
6, explosion-proof valve.
Specific embodiment
The utility model is described below based on embodiment, it should be understood by one skilled in the art that mentioning herein
The attached drawing of confession is provided to the purpose of explanation, and attached drawing is not necessarily drawn to scale.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, be " including but not limited to " contains
Justice.
In the description of the present invention, it should be understood that term " first ", " second " etc. are used for description purposes only,
It is not understood to indicate or imply relative importance.In addition, in the description of the present invention, unless otherwise indicated, it is " more
It is a " it is meant that two or more.
As shown in Figure 1 to Figure 3, this application provides a kind of battery cover board assemblies, with battery body (not shown) phase
Even, battery cover board assembly includes cover board body 2, pole plate 3 and pole plate gasket 4.Battery body includes shell, cover board body 2 and outer
Hull shape is at being removably fixedly connected, for example is threadedly coupled, it is, of course, understood that can also be carried out using welding manner
Connection, to guarantee the safety and reliability of battery entirety.Pole plate 3 is set to cover board body 2 far from battery side, for with
Other batteries connect in electric equipment or battery pack, and pole plate gasket 4 is set between pole plate 3 and cover board body 2, separate 3 He of pole plate
Contact between cover board body 2, the insulation for pole plate 3 and cover board body 2.The pole 5 of battery body is discontiguous to pass through lid
Plate ontology 2 and pole plate gasket 4 are connect with the conductive part 31 of pole plate 3, and electric current is put by pole 5 and pole plate 3 by inside battery outward
Electricity, or charged from outside to inside battery.
Cover plate assembly further includes the short-circuit structure 1 that can be conductive being connected with pole 5, in a preferred embodiment,
The side of the close battery body of cover board body 2 is arranged in short-circuit structure 1, and under battery normal operating condition, short-circuit structure is simultaneously
It is not connect with cover board body 2.Short-circuit structure 1 is directly connected with pole 5, it is, of course, understood that short-circuit structure 1 and pole
Between 5 can be directly connected to, can also be not directly contacted with, and connect short-circuit structure 1 and pole 5 by other supplementary structures, from
And form electrical connection.
Short-circuit structure 1 has first position state and second position state, when short-circuit structure 1 is in first position state
When, short-circuit structure 1 is separated with cover board body 2, and battery is in normal operating conditions, and electric current flows into battery body by pole 5, or
Person's electric current is flowed out by pole 5 from battery body.When short-circuit structure 1 is in second position state, short-circuit structure 1 and cover board sheet
Body 2 is connected, and 2 formation are electrically connected between pole 5 and cover board, and electric current flows into cover board body 2 by pole 5, short-circuit structure 1.Electric current
Extraneous electrical equipment or battery pack other batteries are no longer flowed to by pole plate 3, but cover board body 2 and battery positive and negative electrode it
Between flow, realize make single battery be detached from series-connected cell group purpose, prevent the entire battery pack of single battery anomalous effects
Work.
As shown in Figures 2 and 3, further, short-circuit structure 1 is laminated structure 11, and laminated structure 11 has protrusion
111, contact portion 112 is provided on protrusion 111, it is preferable that contact portion 112 is column construction, and the setting of contact portion 112 is being shorted
The side of the close cover board body 2 of structure 1, it is further preferred that contact portion 112 is structure as a whole with laminated structure 11.
When short-circuit structure 1 is in first position state, protrusion 111 towards battery body side protrude, contact portion 112 with
Cover board body 2 is separated a distance, and contact portion 112 does not contact with laminated structure 11 with cover board body, i.e. short-circuit structure 1 and lid
Plate ontology 2 separates.
When short-circuit structure 1 is in second position state, protrusion 111 is directed away from battery body side protrusion, contact portion
112 or protrusion 111 contacted with cover board body 2, i.e., short-circuit structure 1 is contacted with cover board body 2, realizes short-circuit structure 1 and cover board
The electrical connection of ontology 2.
In a specific embodiment, it is provided with the through-hole that the center of circle is overlapped on cover board body 2 and pole plate gasket 4, it is short
When binding structure 1 is in second position state, contact portion 112 passes through the through-hole 21 of cover board body and the through-hole 41 of pole plate gasket, and
It is connected with the insulation division 32 of pole plate；The protrusion 111 of laminated structure 11 is contacted with cover board body 2, is realized cover board body 2 and is shorted
The electrical connection of structure 1.
Further, the protrusion 111 of short-circuit structure can generate deformation, when inside battery has pressure, protrusion
111 are directed toward the pressure in 2 direction of cover board body by inside battery, and protrusion 111 is used to reach in the internal pressure of battery body
When the first predetermined pressure, the protrusion direction of protrusion 111 becomes the side far from battery body from the side towards battery body,
Second position state is become from first position state.
When the contact portion 112 of short-circuit structure 1 is by by the external pressure for being directed toward inside battery, such as finger is into battery
The protrusion direction in portion, face contact portion, direction 112, protrusion 111 is become from the side far from battery body towards battery body
Side becomes first position state from second position state, for restoring short-circuit structure 1 after 1 trigger protection of short circuit mechanism
Purpose.
Further, cover plate assembly further includes explosion-proof valve 6, and explosion-proof valve 6 is arranged on cover board body 2, and explosion-proof valve 6 is used for
The unlatching when internal pressure of battery body reaches the second specified pressure, for discharging the pressure of inside battery.
The setting of first predetermined pressure and the second predetermined pressure determines that the first predetermined pressure is small according to the design parameter of battery
In the second predetermined pressure, during cell internal pressure gradually changes, successively triggers the protection of short-circuit structure 1 and explosion-proof valve 6 is protected
Shield, to realize the duplicate protection of battery.The setting of first predetermined pressure and the second predetermined pressure, should be according to the specific ginseng of battery
Number, such as the pressure size under inside battery normal condition, the maximum pressure that battery case can be born set the first predetermined pressure
With the second predetermined pressure, and then it is chosen under the first predetermined pressure and the second predetermined pressure and realizes short circuit mechanism 1 and 6 function of explosion-proof valve
The parameters such as the corresponding material and shape and size of energy.
Preferably, the material of short circuit mechanism 1 is metal material.
Present invention also provides a kind of battery, including battery body, battery further includes battery cover board assembly as described above.
In a specific embodiment, the shell of battery is rectangular, and the upper cover plate of shell uses the battery cover to match with its shape
Board group part.It is further preferred that battery is ter-polymers lithium battery.
Battery cover board assembly in the application and the battery using the cover plate assembly, by the way that short-circuit structure is arranged, in battery
When internal pressure is excessive, short-circuits the battery and carry out short-circuit protection, solving after exception occurs in single battery in battery modules influences
The technical issues of entire battery modules work, it ensure that the safety in utilization of battery and battery modules, effect are obvious, it is proposed that big rule
Mould is promoted the use of.
Those skilled in the art will readily recognize that above-mentioned each preferred embodiment can be free under the premise of not conflicting
Ground combination, superposition.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for art technology
For personnel, the utility model can have various modifications and changes.It is all made within the spirit and principle of the utility model
Any modification, equivalent substitution, improvement and etc. should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of battery cover board assembly, is connected with battery body, it is characterised in that: including cover board body, pole plate and pole plate gasket,
The cover board body is fixedly installed on the upper surface of battery body, and the pole plate is set to the cover board body far from battery one
Side, the pole plate gasket are set between the pole plate and the cover board body, and the pole of the battery body is discontiguous to be worn
Cross the cover board body and the pole plate gasket, connect with the conductive part of the pole plate, the cover plate assembly further include with it is described
The short-circuit structure that can be conductive that pole is connected；
The short-circuit structure has first position state and second position state, when the short-circuit structure is in first position state
When, the short-circuit structure is separated with the cover board body, and electric current flows into the battery body by the pole；
When the short-circuit structure is in second position state, the short-circuit structure is connected with the cover board body, and electric current passes through
The pole, the short-circuit structure flow into the cover board body.
2. battery cover board assembly according to claim 1, which is characterized in that the short-circuit structure is arranged in the cover board sheet
The side close to the battery body of body, the short-circuit structure are laminated structure, and the laminated structure has protrusion, described
When short-circuit structure is in first position state, the protrusion is protruded towards the battery body side, at the short-circuit structure
When the state of the second position, the protrusion is directed away from the battery body side protrusion.
3. battery cover board assembly according to claim 2, which is characterized in that the protrusion of the short-circuit structure can generate
Deformation, the protrusion be used for when the internal pressure of the battery body reaches the first predetermined pressure, the protrusion it is convex
Direction becomes the side far from the battery body from the side towards the battery body out.
4. battery cover board assembly according to claim 2, which is characterized in that be provided with through-hole on the pole plate gasket, work as institute
When stating short-circuit structure and being in second position state, the protrusion of the short-circuit structure partially passes through the through-hole and the cover board sheet
Body is connected.
5. battery cover board assembly according to claim 4, which is characterized in that be provided with contact portion, institute on the protrusion
Stating contact portion is column construction, and the side close to the cover board body of the short-circuit structure is arranged in the contact portion, described
When short-circuit structure is in second position state, the contact portion passes through the through-hole and is connected with the insulation division of the pole plate.
6. battery cover board assembly according to claim 5, which is characterized in that the contact portion is one with the laminated structure
Body structure.
7. battery cover board assembly according to one of claims 1 to 6, which is characterized in that the cover plate assembly further includes preventing
Quick-fried valve, the explosion-proof valve are arranged on the cover board body, and the explosion-proof valve is used to reach in the internal pressure of the battery body
It is opened when to the second specified pressure.
8. a kind of battery, including battery body, which is characterized in that the battery further includes as described in one of claim 1 to 7
Battery cover board assembly.
9. battery according to claim 8, which is characterized in that the shell of the battery is rectangular, the upper cover of the shell
Plate uses the battery cover board assembly.
10. battery according to claim 8, which is characterized in that the battery includes ter-polymers lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822013377.7U CN209199991U (en) | 2018-12-03 | 2018-12-03 | A kind of battery cover board assembly and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822013377.7U CN209199991U (en) | 2018-12-03 | 2018-12-03 | A kind of battery cover board assembly and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209199991U true CN209199991U (en) | 2019-08-02 |
Family
ID=67427418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822013377.7U Active CN209199991U (en) | 2018-12-03 | 2018-12-03 | A kind of battery cover board assembly and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209199991U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021104187A1 (en) * | 2019-11-29 | 2021-06-03 | 宁德时代新能源科技股份有限公司 | Battery module, apparatus, and failure processing method for failed battery cell |
| WO2023141784A1 (en) * | 2022-01-25 | 2023-08-03 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electric device, and method and device for manufacturing battery cell |
-
2018
- 2018-12-03 CN CN201822013377.7U patent/CN209199991U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021104187A1 (en) * | 2019-11-29 | 2021-06-03 | 宁德时代新能源科技股份有限公司 | Battery module, apparatus, and failure processing method for failed battery cell |
| US11799142B2 (en) | 2019-11-29 | 2023-10-24 | Contemporary Amperex Technology Co., Limited | Battery module, device, and failure handling method for failed battery cell |
| WO2023141784A1 (en) * | 2022-01-25 | 2023-08-03 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electric device, and method and device for manufacturing battery cell |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |