CN205692876U - Secondary cell top cover and secondary cell - Google Patents
Secondary cell top cover and secondary cell Download PDFInfo
- Publication number
- CN205692876U CN205692876U CN201620652734.2U CN201620652734U CN205692876U CN 205692876 U CN205692876 U CN 205692876U CN 201620652734 U CN201620652734 U CN 201620652734U CN 205692876 U CN205692876 U CN 205692876U
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- CN
- China
- Prior art keywords
- secondary cell
- rotating sheet
- disconnecting unit
- connecting portion
- top cover
- Prior art date
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Links
- 230000010485 coping Effects 0.000 claims abstract description 64
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 27
- 229910052802 copper Inorganic materials 0.000 claims description 27
- 239000010949 copper Substances 0.000 claims description 27
- 238000009413 insulation Methods 0.000 claims description 13
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000000806 elastomer Substances 0.000 claims description 7
- 238000004146 energy storage Methods 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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)
Abstract
The application relates to energy storage device field, particularly relates to a kind of secondary cell top cover and secondary cell.Secondary cell top cover includes coping plate, the first electrode unit and the second electrode unit, and the first electrode unit includes connecting plate, rotating sheet, the first insulating part and failure of current structure, and connecting plate is provided with receiving chamber；Coping plate is provided with rotating sheet connecting hole, and rotating sheet is fixed in rotating sheet connecting hole and seals rotating sheet connecting hole；Failure of current structure includes fixed part, disconnecting unit and connecting portion, and fixed part is connected by disconnecting unit with connecting portion；Fixed part is fixedly connected between the first insulating part and coping plate；Connecting portion electrically connects with connecting plate, and disconnecting unit is positioned at the lower section accommodating chamber；Rotating sheet can overturn when secondary cell internal pressure exceedes reference pressure and make disconnecting unit disconnect.The application can reduce rotating sheet and failure of current structure taking the space of inside battery, improves battery capacity density and the utilization rate in inside battery space.
Description
Technical field
The application relates to energy storage device field, particularly relates to a kind of secondary cell top cover and secondary cell.
Background technology
For EV duricrust battery, in order to solve to overcharge problem, the commonly used scheme of industry is, increases preventer,
Battery core cut off battery major loop before losing efficacy, and prevented battery from continuing charging to ensure cell safety.
Currently for square duricrust battery, preventer is included in the CID (current that the inside of battery is arranged
Interrupt device, failure of current structure), to carry out overcharging protection.Meanwhile, general failure of current structure is required to join
Close drive mechanism such as rotating sheet to use, therefore, failure of current structure and rotating sheet can be arranged at battery by correlation technique
Inside.But so failure of current structure and rotating sheet can take the larger space of inside battery.
In view of at present the capacity density of secondary cell being required more and more higher, the space availability ratio requirement to inside battery
More and more higher.
In view of this, we have must design a kind of structure, and the fewest takies inside battery space.
Utility model content
This application provides a kind of secondary cell top cover and secondary cell, it is possible to reduce rotating sheet and failure of current structure pair
Taking of the space of inside battery, improves battery capacity density and the utilization rate in inside battery space.
The one side of the application provides a kind of secondary cell top cover, including coping plate, the first electrode unit and second
Electrode unit,
Described first electrode unit includes connecting plate, rotating sheet, the first insulating part and failure of current structure,
Described connecting plate is fixed on the upper surface of described coping plate by described first insulating part；
Described first insulating part is provided with through hole；
Described coping plate is provided with rotating sheet connecting hole, described rotating sheet connecting hole with to state through hole relative, described upset
Sheet is fixed on described coping plate and seals described rotating sheet connecting hole；
Described failure of current structure is arranged at the top of described rotating sheet；Described failure of current structure includes fixed part, breaks
Opening portion and connecting portion, described fixed part is connected by described disconnecting unit with described connecting portion；Described fixed part is fixedly connected on institute
State coping plate；Described coping plate forms insulation stream through described rotating sheet, described disconnecting unit to described connecting portion,
Described second electrode unit and described coping plate electric insulation, described rotating sheet can surpass in secondary cell internal pressure
After when crossing reference pressure, upset makes described fixed part depart from the status of electrically connecting with described connecting portion, and the upset of described rotating sheet,
Described coping plate is in off state through the circuit of described rotating sheet, described disconnecting unit to described connecting portion.
Preferably, during normality, described coping plate passes sequentially through described fixed part, described disconnecting unit and described connecting portion
Can realize electrically connecting with described connecting plate.
Preferably, described rotating sheet includes turning part and plush copper, and turning part is lamellar annuli arrangement, its edge and institute
State coping plate to connect；Described plush copper is connected to turning part, and protrudes to the lower surface of described failure of current structure, described convex
Head is relative with described disconnecting unit, and does not contacts between described connecting portion.
Preferably, described connecting plate being provided with receiving chamber, described receiving chamber is through towards the side of described coping plate, institute
State receiving chamber relative with described disconnecting unit.
Preferably, described receiving chamber is provided with through hole away from the side of described failure of current structure, and described connecting portion is away from institute
Described through hole is stretched out in the one end stating disconnecting unit, and electrically connects with described connecting plate.
Preferably, described disconnecting unit and described connecting portion are structure as a whole.
Preferably, described receiving chamber is to be caved inward the blind hole formed by the lower surface of described connecting plate, described connecting portion
Electrically connect with the inwall of described blind hole away from one end of described disconnecting unit.
Preferably, described connecting portion is U-shape structure, and it electrically connects with described disconnecting unit, and another side is blind with described
The bottom electrical connection in hole.
Preferably, it is provided with between described fixed part and described disconnecting unit and/or between described disconnecting unit and described connecting portion
Impression, the thickness of described impression is simultaneously less than thickness and the thickness of described fixed part of described disconnecting unit.
Preferably, being provided with described impression between the most described fixed part and described disconnecting unit, described connecting portion is elastomer.
Preferably, also include that the second insulating part, described second insulating part are arranged between described plush copper and described disconnecting unit.
Preferably, described second insulating part is arranged on upper surface or the lower surface of described disconnecting unit of described plush copper.
Preferably, described rotating sheet is fixing with the insulation of described coping plate.
Preferably, described failure of current structure is structure as a whole with described coping plate.
Preferably, described rotating sheet is structure as a whole with described coping plate.
The another aspect of the application additionally provides a kind of secondary cell, including the secondary cell top described in as above any one
Lid.
The technical scheme that the application provides can reach following beneficial effect:
Failure of current structure, by arranging rotating sheet connecting hole on coping plate, is set by secondary cell provided herein
Putting above rotating sheet, rotating sheet is fixed on coping plate, it is possible to make failure of current structure and rotating sheet substantially be not take up electricity
Inner space, pond, thus the energy density of battery and the space availability ratio of inside battery are greatly improved.
It should be appreciated that it is only exemplary that above general description and details hereinafter describe, can not be limited this
Application.
Accompanying drawing explanation
The explosive view of a kind of specific embodiment of battery cap that Fig. 1 is provided herein；
The sectional drawing of a kind of specific embodiment of battery cap that Fig. 2 is provided herein；
Structural representation at A in battery cap a kind of specific embodiment Fig. 2 under normal conditions that Fig. 3 is provided herein
Figure；
A kind of specific embodiment of battery cap that Fig. 4 is provided herein is under disconnecting unit off-state in Fig. 2 at A
Structure chart is illustrated；
Fig. 5 is the structural diagrams in battery cap another kind specific embodiment Fig. 2 under normal conditions provided herein at A
Meaning；
Fig. 6 is the structural diagrams in battery cap provided herein another specific embodiment Fig. 2 under normal conditions at A
Meaning；
Fig. 7 is that another specific embodiment of battery cap provided herein is under disconnecting unit off-state in Fig. 2 at A
Structure chart signal.
Reference:
10-coping plate；
20-the first electrode unit；
201-connecting plate；
2011-accommodates chamber；
202-the first insulating part；
203-failure of current structure；
2031-fixed part；
2032-disconnecting unit；
2033-connecting portion；
204-rotating sheet；
2041-turning part；
2042-plush copper；
30-the second electrode unit.
Accompanying drawing herein is merged in description and constitutes the part of this specification, it is shown that meet the enforcement of the application
Example, and for explaining the principle of the application together with description.
Detailed description of the invention
Below by specific embodiment and combine accompanying drawing the application is described in further detail.Described in literary composition
"front", "rear", "left", "right", " on ", D score is all with the laying state of the secondary cell top cover in accompanying drawing and secondary cell for ginseng
According to.
As Fig. 1 is to shown in 2, and the embodiment of the present application provides a kind of secondary cell top cover, including coping plate the 10, first electrode
Unit 20 and the second electrode unit 30, wherein, the second electrode unit 30 and coping plate 10 electric insulation；First electrode unit 20 wraps
Include connecting plate 201, rotating sheet the 204, first insulating part 202 and failure of current structure 203.Connecting plate 201 is by the first insulation
Part 202 is fixed on the upper surface of coping plate 10, and the i.e. first insulating part 202 is between connecting plate 201 and coping plate 10.
In the present embodiment, the first insulating part 202 is provided with through hole；Coping plate 10 is provided with rotating sheet connecting hole, upset
Sheet connecting hole is relative with through hole, and rotating sheet 204 is fixed on coping plate 10 and seals rotating sheet connecting hole, and rotating sheet 204 is permissible
Electrically connecting with coping plate 10, it is also possible to insulate with coping plate 10, rotating sheet 204 both can be fixed in rotating sheet connecting hole, also
The outside of rotating sheet connecting hole can be fixed on.
Failure of current structure 203 arranges the top with rotating sheet 204, including fixed part 2031, disconnecting unit 2032 and connection
Portion 2033, fixed part 2031 is connected by disconnecting unit 2032 with connecting portion 2033.Specifically, can be such as Fig. 3, shown in 5, fixed part
2031 and disconnecting unit 2032 be structure as a whole, and connecting portion 2033 is Split type structure；Or, as shown in Figure 6, fixed part 2031,
Disconnecting unit 2032 and connecting portion 2033 are structure as a whole.Generally, between disconnecting unit 2032 and fixed part 2031 and disconnecting unit
Between 2032 and connecting portion 2033, at least one position can arrange weak structure, in order to makes disconnecting unit 2032 break under external force
Open, thus by electrically disconnected between connecting portion 2033 and fixed part 2031；Fixed part 2031 is fixing and is electrically connected to coping plate 10；?
Secondary cell is internal when occurring abnormal, rotating sheet 204 can when secondary cell internal pressure exceedes reference pressure disconnecting unit
2032 moves near the direction of connecting plate 201 and disconnect, i.e. upset makes being electrically connected of fixed part 2031 disengaging and connecting portion 2033
After connecing state, and rotating sheet 204 upset, coping plate 10 is inverted sheet 204, the circuit of disconnecting unit 2032 to connecting portion 2033 is in
Off state.
Above-described embodiment arranges rotating sheet connecting hole on coping plate 10, and failure of current structure 203 is arranged on rotating sheet
The top of 204, rotating sheet 204 is fixed on coping plate, it is possible to make failure of current structure 203 and rotating sheet 204 substantially be not take up
Inside battery space, thus the energy density of battery and the space availability ratio of inside battery are greatly improved.
In above-described embodiment, during normality, coping plate 10 passes sequentially through fixed part 2031, disconnecting unit 2032 and connecting portion
2033 could realize electrically connecting with connecting plate 201.It should be noted that " passing sequentially through " be not limited to only coping plate 10,
Fixed part 2031, disconnecting unit 2032, connecting portion 2033 and the several parts of connecting plate 201, when coping plate 10, fixed part 2031,
Can also when increasing other parts between any two in disconnecting unit 2032, connecting portion 2033 and connecting plate 201.Above-mentioned reality
Execute in example, connecting plate 201 can be provided with receiving chamber 2011, accommodate chamber 2011 through towards the side of coping plate 10, accommodate
Chamber 2011 is relative with disconnecting unit 2032, to provide bigger appearance for accommodating disconnecting unit 2032 after can providing rotating sheet 204 upset
Receive space.
Specifically, as shown in figs. 1-7, including turning part 2041 and plush copper 2042, turning part 2041 is lamellar to rotating sheet 204
Annuli arrangement, its edge is tightly connected with rotating sheet connecting hole；Plush copper 2042 is connected to turning part 2041, and ties to failure of current
The lower surface of structure 203 protrudes, and plush copper 2042 is relative with disconnecting unit 2032, and plush copper 2042 is relative with accommodating chamber 201, and plush copper 2042
Do not contact with connecting portion 2033.The Main Function of plush copper 2042 is to overcome the distance between rotating sheet 204 and disconnecting unit 2032,
Secondary cell internal pressure enables the two to be successfully in close contact when exceeding reference pressure.Rotating sheet 204 and disconnecting unit
Spacing between 2032 is the biggest, and the length of plush copper 2042 is the biggest.The top end face of plush copper 2042 preferably with plane, so with
The contact of disconnecting unit 2032 is the tightst, and active force is bigger.
In above-described embodiment, weak structure can be impression, it is also possible to for other structure, such as a plurality of dowel, be preferably
Impression, the thickness of impression is simultaneously less than thickness and the thickness of fixed part 2031 of disconnecting unit 2032, to facilitate machine-shaping.
A kind of embodiment of the impression of the application is for being only located between fixed part 2031 and disconnecting unit 2032 or disconnecting unit
Between 2032 and connecting portion 2033, as in Figure 3-5, impression is only located between fixed part 2031 and disconnecting unit 2032, disconnecting unit
2032 is column structure, is positioned at the middle part of failure of current structure 203, and in this scheme, preferably plush copper 2042 is positioned at turning part 2041
Middle part, relative with disconnecting unit 2032, preferably to push disconnecting unit 2032, it is achieved disconnect rapidly.
In this scenario, the insulation stream that coping plate 10 is inverted sheet 204, disconnecting unit 2032 to connecting portion 2033 is formed,
So that after rotating sheet 204 upset, coping plate 10 is inverted sheet 204, the circuit of disconnecting unit 2032 to connecting portion 2033 is in open circuit
State, and then ensure the electrically disconnected of coping plate 10 and connecting plate 201.First kind of way: between turning part 2041 and coping plate 10
Insulation is fixing, can be fixed by insulating cement between turning part 2041 and coping plate 10, such as fluorine dragon, insullac or other insulation material
Material, or use common mode to fix, but at least one surface uses anodic oxidation insulation processing therebetween, it is also possible to and two
Insulation plastic cement is set between person, such as plastic cement such as PET, PE, PP.Another way: or between plush copper 2042 and disconnecting unit 2032
One end be provided with the second insulating part, the upper surface of plush copper 2042 can be located at, it is also possible to be located at the lower surface of disconnecting unit 2041, or
The upper surface of person's plush copper 2042 and the lower surface of disconnecting unit 2032；Second insulating part can be by anodic oxidation insulation processing shape
The dielectric film become, it is also possible to for insulating cement, such as fluorine dragon, insullac or other insulant, or such as the insulation of PET, PE, PP etc.
Plastic cement.
The another kind of embodiment of the application impression is between fixed part 2031 with disconnecting unit 2032, disconnecting unit 2032 be connected
Being simultaneously provided with impression between portion 2033, as shown in fig. 6-7, the part between two impressions is disconnecting unit 2032, now plush copper
2042 are loop configuration with disconnecting unit 2032, and connecting portion 2033 is column structure, is positioned at the middle part of loop configuration.More enter one
Step, the section of the plush copper 2042 in the program is preferably I-shaped structure, to prevent after rotating sheet 204 overturns, plush copper 2042
Electrically connect with fixed part 2031, the connecting portion 2033 of both sides.Between fixed part 2031 and disconnecting unit 2032, disconnecting unit
It is simultaneously provided with in the scheme of impression between 2032 and connecting portion 2033, no matter whether insulate between turning part 2041 and coping plate 10
Fixing, and/or whether boss 2042 is provided with the second insulating part near one end of disconnecting unit 2041, concrete set-up mode is with reference to upper one
Embodiment, after rotating sheet 204 upset, coping plate 10 is inverted sheet 204, the circuit of disconnecting unit 2032 to connecting portion 2033 is in
Off state, all can make coping plate 10 be fully disconnected with connecting plate 201.Certainly, in this scenario, turning part 2041 and coping plate
Between 10, and/or boss 2042 can also be provided with the second insulating part near one end of disconnecting unit 2041, and in the program, preferably
Second insulating part is located at the sidewall of plush copper 2042, to better ensure that rotating sheet 204 overturns back header sheet 10 and connecting portion 2033
Electrically disconnected.
Receiving chamber 2011 in the various embodiments described above can be blind hole, and i.e. accommodating chamber 2011 is by the following table of connecting plate 201
Being formed towards sunken inside, connecting portion 2033 electrically connects with the inwall of blind hole away from one end of disconnecting unit 2032, such as Fig. 3, shown in 6.
Connecting portion 2033 can electrically connect with the sidewall of blind hole, it is also possible to is connected to the bottom surface of blind hole, but is being connected to the scheme of bottom surface
In, if being provided only with an impression, disconnecting unit 2032 is in order to realize to the internal motion accommodating chamber 2011, connecting portion 2033 and disconnection
Portion 2032 at least one is elastomer, and preferably connecting portion 2033 is elastomer, in order to exceed base in secondary cell internal pressure
Disconnecting unit 2032 is made to be more easy to disconnect during quasi-pressure.In other scheme, connecting portion 2033 and disconnecting unit 2032 both can be elastomer,
It can also be rigid body.
Receiving chamber 2011 in the various embodiments described above can also be through hole, or the local only accommodating chamber 2011 offers
Through hole, is i.e. provided with through hole in the side away from failure of current structure 203, to facilitate installation.Connecting portion 2033 is away from disconnecting unit
One end of 2032 both can directly inwall with through hole or through hole electrically connect；Through hole or through hole and company can also be stretched out
The outside electrical connection of fishplate bar 201, as shown in Figure 5.Connecting portion 2033 stretch out through hole or through hole one end can be connected
Plate 201 is fixing to be connected, it is also possible to overlap with connecting plate 201, especially in the embodiment being provided only with an impression, in plush copper
During 2042 push disconnecting unit 2032, connecting portion 2033 along with disconnecting unit 2032 motion and to the side away from coping plate 10
To motion, the resistance of motion can be reduced by bridging arrangement.Can also connecting portion 2033 two ends respectively with connecting plate 201, disconnected
Opening the fixing connection in portion 2032, now needing disconnecting unit 2032 and connecting portion 2033 at least one is elastomer, normal to ensure
The reliability that during state, coping plate 10 electrically connects with connecting plate 201, in the present embodiment, preferably disconnecting unit 2032 is non-resilient
Body, in order to make disconnecting unit 2032 be more easy to disconnect when secondary cell internal pressure exceedes reference pressure.At fixed part 2031 with disconnected
Open between portion 2032, be simultaneously provided with in the embodiment of impression between disconnecting unit 2032 and connecting portion 2033, connecting portion 2033, disconnection
Portion 2032 can be elastomer, it is also possible to for inelastic body.
Connecting portion 2033 in the various embodiments described above can be U-shape structure, it is also possible to for S type structure, or block structure,
In accommodating the embodiment that chamber 2011 be blind hole, preferably U-shape structure, it electrically connects with disconnecting unit 2032, another side and
The bottom electrical connection of blind hole, to facilitate connection and to install.
In the various embodiments described above, connecting portion 2033 can be structure as a whole with disconnecting unit 2032, fixed part 2031, such as figure
Shown in 6, it is also possible to for Split type structure, such as Fig. 3, shown in 5.Coping plate 10, fixed part 2031 and disconnecting unit 2032 can be one
Body structure, connecting portion 2033 is connected to disconnecting unit 2032；Further, failure of current structure 203 and coping plate 10 can be one
Body structure, it is also possible to for Split type structure, preferably integrative-structure, to reduce assembly process.
Rotating sheet 204 can also be structure as a whole, and turns up sheet 204 and can also be structure as a whole with coping plate 10,
To reduce assembly process.Certainly rotating sheet 204 and coping plate 10 can also be Split type structure.
Present invention also provides a kind of secondary cell, use the secondary cell top cover in above-described embodiment and battery core, upper
Stating in each embodiment, battery core can electrically connect with coping plate 10；And fixing with coping plate 10 insulation at rotating sheet 204, and solid
Determine between portion 2031 and disconnecting unit 2032, be simultaneously provided with in the scheme of impression between disconnecting unit 2032 and connecting portion 2033, battery core
Can also electrically connect with rotating sheet 204, wherein when normality, plush copper 2042 needs to fit with disconnecting unit 2032, to realize being electrically connected
Connect.Use above-mentioned secondary cell, it is possible to increase the energy density of this secondary cell.
The foregoing is only the preferred embodiment of the application, be not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.All within spirit herein and principle, that is made any repaiies
Change, equivalent, improvement etc., within should be included in the protection domain of the application.
Claims (16)
1. a secondary cell top cover, it is characterised in that include coping plate, the first electrode unit and the second electrode unit,
Described first electrode unit includes connecting plate, rotating sheet, the first insulating part and failure of current structure,
Described connecting plate is fixed on the upper surface of described coping plate by described first insulating part；
Described first insulating part is provided with through hole；
Described coping plate is provided with rotating sheet connecting hole, and described rotating sheet connecting hole is relative with described through hole, described rotating sheet
It is fixed on described coping plate and seals described rotating sheet connecting hole；
Described failure of current structure is arranged at the top of described rotating sheet；Described failure of current structure includes fixed part, disconnecting unit
And connecting portion, described fixed part is connected by described disconnecting unit with described connecting portion；Described fixed part is fixed and is electrically connected to institute
State coping plate；Described second electrode unit and described coping plate electric insulation, described rotating sheet can be in secondary cell internal pressure
When exceeding reference pressure, upset makes described fixed part depart from the status of electrically connecting with described connecting portion, and the upset of described rotating sheet
After, described coping plate is in off state through the circuit of described rotating sheet, described disconnecting unit to described connecting portion.
Secondary cell top cover the most according to claim 1, it is characterised in that during normality, described coping plate passes sequentially through institute
State fixed part, described disconnecting unit and described connecting portion to realize electrically connecting with described connecting plate.
Secondary cell top cover the most according to claim 1, it is characterised in that described rotating sheet includes turning part and plush copper,
Turning part is lamellar annuli arrangement, and its edge is connected with described coping plate；Described plush copper is connected to turning part, and to
The lower surface of described failure of current structure protrudes, and described plush copper is relative with described disconnecting unit, and and described connecting portion between do not connect
Touch.
Secondary cell top cover the most according to claim 3, it is characterised in that be provided with receiving chamber, institute on described connecting plate
Stating receiving chamber through towards the side of described coping plate, described receiving chamber is relative with described disconnecting unit.
Secondary cell top cover the most according to claim 4, it is characterised in that described receiving chamber is tied away from described failure of current
The side of structure is provided with through hole, and described connecting portion stretches out described through hole away from one end of described disconnecting unit, and electric with described connecting plate
Connect.
Secondary cell top cover the most according to claim 4, it is characterised in that described disconnecting unit and described connecting portion are integrated
Structure.
Secondary cell top cover the most according to claim 4, it is characterised in that described receiving chamber is by under described connecting plate
Surface cave inward formed blind hole, described connecting portion electrically connects with the inwall of described blind hole away from one end of described disconnecting unit.
Secondary cell top cover the most according to claim 7, it is characterised in that described connecting portion is U-shape structure, and its
Electrically connecting with described disconnecting unit, another side electrically connects with the bottom of described blind hole.
9. according to the secondary cell top cover described in any one of claim 1-8, it is characterised in that described fixed part and described disconnection
Being provided with impression between portion and/or between described disconnecting unit and described connecting portion, the thickness of described impression is simultaneously less than described disconnection
The thickness in portion and the thickness of described fixed part.
Secondary cell top cover the most according to claim 9, it is characterised in that the most described fixed part and described disconnecting unit it
Between be provided with described impression, described connecting portion is elastomer.
11. secondary cell top covers according to claim 3, it is characterised in that also include the second insulating part, described second exhausted
Edge part is arranged between described plush copper and described disconnecting unit.
12. secondary cell top covers according to claim 11, it is characterised in that described second insulating part is arranged on described convex
The upper surface of head or the lower surface of described disconnecting unit.
13. secondary cell top covers according to claim 1, it is characterised in that described rotating sheet insulate with described coping plate
Fixing.
14. according to the secondary cell top cover described in any one of claim 1-8, it is characterised in that described failure of current structure with
Described coping plate is structure as a whole.
15. according to the secondary cell top cover described in any one of claim 1-8, it is characterised in that described rotating sheet and described top
Cover plate is structure as a whole.
16. 1 kinds of secondary cells, it is characterised in that include the secondary cell top cover described in any one of claim 1 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620652734.2U CN205692876U (en) | 2016-06-27 | 2016-06-27 | Secondary cell top cover and secondary cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620652734.2U CN205692876U (en) | 2016-06-27 | 2016-06-27 | Secondary cell top cover and secondary cell |
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| Publication Number | Publication Date |
|---|---|
| CN205692876U true CN205692876U (en) | 2016-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620652734.2U Active CN205692876U (en) | 2016-06-27 | 2016-06-27 | Secondary cell top cover and secondary cell |
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| CN (1) | CN205692876U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977411A (en) * | 2016-06-27 | 2016-09-28 | 宁德时代新能源科技股份有限公司 | Secondary cell top cap and secondary cell |
| CN112952303A (en) * | 2018-04-23 | 2021-06-11 | 比亚迪股份有限公司 | Battery cover plate assembly, battery module, power battery and electric automobile |
-
2016
- 2016-06-27 CN CN201620652734.2U patent/CN205692876U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977411A (en) * | 2016-06-27 | 2016-09-28 | 宁德时代新能源科技股份有限公司 | Secondary cell top cap and secondary cell |
| CN105977411B (en) * | 2016-06-27 | 2019-07-09 | 宁德时代新能源科技股份有限公司 | Secondary cell top cap and secondary cell |
| CN112952303A (en) * | 2018-04-23 | 2021-06-11 | 比亚迪股份有限公司 | Battery cover plate assembly, battery module, power battery and electric automobile |
| CN112952303B (en) * | 2018-04-23 | 2023-07-11 | 比亚迪股份有限公司 | Battery cover plate assembly, battery module, power battery and electric automobile |
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