CN209266451U - A kind of secondary cell lamina tecti component - Google Patents
A kind of secondary cell lamina tecti component Download PDFInfo
- Publication number
- CN209266451U CN209266451U CN201821911247.9U CN201821911247U CN209266451U CN 209266451 U CN209266451 U CN 209266451U CN 201821911247 U CN201821911247 U CN 201821911247U CN 209266451 U CN209266451 U CN 209266451U
- Authority
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- China
- Prior art keywords
- hole
- movable block
- coping plate
- plastic part
- outer plastic
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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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- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a kind of secondary cell lamina tecti components, including Positive Poles, negative pole, coping plate, positive outer plastic part and negative outer plastic part, positive outer plastic part is connect with Positive Poles, negative outer plastic part is connect with negative pole, Positive Poles or negative pole and coping plate insulate, and coping plate is equipped with rotating sheet close to Positive Poles or negative pole one end；Coping plate offers the wedge-shaped through-hole of decline far from rotating sheet one end, the movable block of the wedge structure of the decline cooperated with through-hole is equipped in through-hole, elastic component is fixed on movable block, the one end of elastic component far from movable block is connect with positive outer plastic part or negative outer plastic part, movable block is for sealing through-hole, and movable block is fixedly connected with through-hole or the activity upwards in through-hole；The utility model can effectively reduce lamina tecti to the wrong identification of cell safety hidden danger, reduce secondary cell failure risk in a high temperauture environment, increase the service life of battery, and flexibility is higher.
Description
Technical field
The utility model relates to battery core safety test technical field more particularly to a kind of secondary cell lamina tecti components.
Background technique
The outside of rectangular aluminum-shell battery using aluminum hull the chemical substance of battery be wrapped in the inside, because aluminum hull rigidity compared with
By force, when inside battery when something goes wrong, the energy gathered accumulates rapidly, is wrapped in the inside by aluminum hull and is unable to get and releases in time
Put, energy accumulation to a certain extent afterwards can abrupt release, cause to explode, there is very big security risk.Rectangular aluminum hull power
Energy is reduced when battery manufacture producer is all guaranteed in aluminum-shell battery the problems such as short circuit occurs, overcharges using different structure designs
The generation of amount or the energy that release generates in time, reduce security risk.
Pressure sensitive rotating sheet, which generates gas after side reaction occurs for battery, in existing battery leads to cell internal pressure
Increase and is flipped, and there are two reason the reason of battery producing gas, one the reason is that inside battery failure causes battery violent
It reacts and generates gas；Another reason is that the raising of battery ambient temperature causes the chemical substance of inside battery to be decomposed
(such as electrolyte), which generates gas, causes cell internal pressure to increase.The former needs rotating sheet to work so that battery is voluntarily breaking,
Battery positive and negative electrode is connected by coping plate, short circuit occurs for inside battery, causes electric current increased dramatically, positive strap open circuit
It fuses at design, inside battery open circuit, battery is scrapped, and battery failure is avoided safety accident occur；And the latter then needs to overturn
Piece does not work, and not so causes battery is unnecessary to scrap.And the existing lamina tecti design for security risk exists centainly
Erroneous judgement, by security risk progress wrong identification cause battery to stop working or scrap.
Utility model content
In order to solve the above-mentioned technical problem, point in view of the above problems, secondary cell top cover board group disclosed by the utility model
Part, structure is simple, can effectively reduce lamina tecti to the wrong identification of cell safety hidden danger, reduce secondary cell under high temperature environment
Failure risk, increase the service life of battery, and flexibility is higher.
In order to reach above-mentioned purpose of utility model, the utility model provides a kind of secondary cell lamina tecti component, including
Positive Poles, negative pole, coping plate, positive outer plastic part and negative outer plastic part, the anode outer plastic part with
The Positive Poles connection, the negative outer plastic part are connect with the negative pole, the Positive Poles or the cathode
Pole and the coping plate insulate, and the coping plate is equipped with rotating sheet close to the Positive Poles or described negative pole one end；
The coping plate offers the wedge-shaped through-hole of decline far from described rotating sheet one end, be equipped in the through-hole with it is described
The movable block of the wedge structure of the decline of through-hole cooperation, is fixed with elastic component on the movable block, the elastic component is far from institute
The one end for stating movable block is connect with the positive outer plastic part or the negative outer plastic part, and the movable block is for sealing
The through-hole, the movable block is fixedly connected with the through-hole or the activity upwards in the through-hole.
Preferably, the through-hole is the hole of frustum cone structure wide at the top and narrow at the bottom, the movable block in the through-hole for institute
The frustum cone structure wide at the top and narrow at the bottom of through-hole cooperation is stated, the top of the movable block frustum cone structure is arranged in the elastic component.
Further, hot melt layer is equipped between the movable block and the through-hole, the movable block passes through the hot melt layer
It is fixed in the through-hole.
Preferably, the hot melt layer is hot melt adhesive, and the fusing point of the hot melt layer is 75-85 DEG C.
Preferably, the elastic component is spring, and one end of the spring is fixedly connected with the movable block.
Further, the coping plate includes the first coping plate and the second coping plate, first coping plate and described the
Two coping plates are fixedly connected, and the junction of first coping plate and second coping plate is equipped with explosion-protection equipment, the anode
In first coping plate far from second coping plate one end, the negative pole is arranged in second top cover for pole setting
Piece is far from first coping plate one end.
Further, the positive outer plastic part is described to turn between the explosion-protection equipment and the Positive Poles
Rotor be arranged between the Positive Poles or the negative pole and the explosion-protection equipment, the through-hole be also disposed at it is described just
Between pole pole or the negative pole and the explosion-protection equipment.
Further, the through-hole is arranged on first coping plate, and the anode outer plastic part is located at described
The top of through-hole, is equipped with movable block in the through-hole, and the movable block is equipped with elastic component, one end of the elastic component with it is described
Movable block is fixedly connected, and the other end is connect with the positive outer plastic part.
Further, the surface of the rotating sheet is equipped with conduct piece, and the rotating sheet includes central contact portion and surrounds
The edge deformation portion of central contact portion setting, the central contact portion and the edge deformation portion are integrally formed, it is described in
The thickness of contact portion is entreated to be greater than the thickness in the edge deformation portion.
Further, the surface of the rotating sheet is equipped with conduct piece, and the edge deformation portion is in secondary cell
Portion's pressure jacks up when reaching threshold value to close to conduct piece direction, and the central contact portion is same under the action of the edge deformation portion
It walks and is jacked up to close to the conduct piece direction, the central contact portion contacts after jack-up with the conduct piece.
Implement the utility model embodiment, has the following beneficial effects:
1, secondary cell lamina tecti component disclosed by the utility model, the wedge-shaped through-hole of the decline of setting and can live upwards
The movable block of dynamic wedge structure, can be when cell internal pressure be greater than external pressure, and movable block is movable upwards, inside and outside battery
Portion's perforation, inside battery pressure release；The elastic component of setting, not only can in balancing battery from bottom to top give movable block power, even if
Battery temperature is sufficiently high to be caused to heat melting layer, and the pressure in battery will not release in time；Escaping gas is avoided only to wave
The electrolyte of sending, i.e. elastic component play the role of one gas evolution threshold of setting；And when inside battery air pressure passes through
After through-hole evolution, the power of elastic component can be in time by movable block reset, and reduction extraneous gas, which enters inside battery, causes battery
Pollution；
2, secondary cell lamina tecti component disclosed by the utility model, wedge-shaped design not only can effectively increase activity
The work times of block improve the service life of battery；And the work flexibility ratio of movable block can be increased, make the pressure of inside battery
Power can be released effectively；
3, secondary cell lamina tecti component disclosed by the utility model, structure is simple, can effectively reduce lamina tecti to battery
The wrong identification of security risk reduces secondary cell failure risk in a high temperauture environment, increases the service life of battery, and spirit
Activity is higher.
Detailed description of the invention
It, below will be to needed for embodiment in order to illustrate more clearly of secondary cell lamina tecti component described in the utility model
The attached drawing wanted is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the cross-sectional view of the utility model secondary cell lamina tecti component preferred embodiment；
Wherein, appended drawing reference is corresponding in figure are as follows:
1- Positive Poles, 2- negative pole, the first coping plate of 3-, 301- through-hole, 302- movable block, 303- hot melt layer,
304- elastic component, the second coping plate of 4-, 401- rotating sheet, 5- anode outer plastic part, 6- explosion-protection equipment.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail.
Embodiment 1:
As shown in Figure 1, a kind of secondary cell lamina tecti component, including Positive Poles 1, negative pole 2, coping plate, anode
Outer plastic part 5 and negative outer plastic part, the anode outer plastic part 5 are connect with the Positive Poles 1, the cathode
Outer plastic part is connect with the negative pole 2, and the Positive Poles 1 or the negative pole 2 and the coping plate insulate, institute
It states coping plate and is equipped with rotating sheet 401 close to the Positive Poles 1 or 2 one end of the negative pole；
The coping plate offers the wedge-shaped through-hole 301 of decline far from described 401 one end of rotating sheet, in the through-hole 301
The movable block 302 of wedge structure equipped with the decline cooperated with the through-hole 301 is fixed with elasticity on the movable block 302
Part 304, the one end of the elastic component 304 far from the movable block 302 and the positive outer plastic part 5 or the negative outer
Plastic part connection, the movable block 302 is for sealing the through-hole 301, the movable block 302 and the fixed company of the through-hole 301
Connect or in the through-hole 301 upwards activity；The utility model setting decline wedge-shaped through-hole 301 and can upwards it is movable
The movable block 302 of wedge structure, can be when cell internal pressure be greater than external pressure, and movable block is movable upwards, inside and outside battery
Portion's perforation, inside battery pressure release；The elastic component 304 of setting, not only can be to give movable block 302 from bottom to top in balancing battery
Power, i.e. elastic component 304 play the role of one gas evolution threshold of setting；And when inside battery air pressure passes through through-hole 301
After evolution, the power of elastic component 304 can in time reset movable block 302, and reduction extraneous gas enters inside battery and makes to battery
At pollution.
Hot melt layer 303 is equipped between the movable block 302 and the through-hole 301, the movable block 302 passes through the heat
Crucible zone 303 is fixed in the through-hole 301, specifically, setting elastic component 304, not only can in balancing battery under
Give the power of movable block 302 upwards, cause hot melt layer 303 to melt even if battery temperature is sufficiently high, the pressure in battery will not and
When release；I.e. elastic component 304 plays the role of one gas evolution threshold of setting.
It is further preferred that the hot melt layer 303 is hot melt adhesive, the fusing point of the hot melt layer 303 is 75-85 DEG C.
The coping plate includes the first coping plate 3 and the second coping plate 4, first coping plate 3 and second top cover
Piece 4 is fixedly connected, and the junction of first coping plate 3 and second coping plate 4 is equipped with explosion-protection equipment 6, the anode pole
The setting of column 1 is in first coping plate 3 far from described second coping plate, 4 one end, and the setting of negative pole 2 is on second top
Cover plate 4 is far from described first coping plate, 3 one end.
The anode outer plastic part 5 is between the explosion-protection equipment 6 and the Positive Poles 1, the rotating sheet 401
It is arranged between the Positive Poles 1 or the negative pole 2 and the explosion-protection equipment 6, the through-hole 301 is also disposed at described
Between Positive Poles 1 or the negative pole 2 and the explosion-protection equipment 6.
The surface of the rotating sheet 401 is equipped with conduct piece, and the rotating sheet 401 includes central contact portion and surrounds described
The edge deformation portion of central contact portion setting, the central contact portion and the edge deformation portion are integrally formed, and the center connects
The thickness of contact portion is greater than the thickness in the edge deformation portion.
The surface of the rotating sheet 401 is equipped with conduct piece, and the edge deformation portion is reached for secondary cell internal pressure
It is jacked up when to threshold value to close to conduct piece direction, the central contact portion synchronizes under the action of the edge deformation portion to close
The conduct piece direction jacks up, and the central contact portion contacts after jack-up with the conduct piece.
Embodiment 2: for the preferred embodiment of embodiment 1,
A kind of secondary cell lamina tecti component as shown in Figure 1:, including Positive Poles 1, negative pole 2, coping plate, anode
Outer plastic part 5 and negative outer plastic part, the anode outer plastic part 5 are connect with the Positive Poles 1, the cathode
Outer plastic part is connect with the negative pole 2, and the Positive Poles 1 or the negative pole 2 and the coping plate insulate, institute
It states coping plate and is equipped with rotating sheet 401 close to the Positive Poles 1 or 2 one end of the negative pole；
The coping plate offers the wedge-shaped through-hole 301 of decline far from described 401 one end of rotating sheet, in the through-hole 301
The movable block 302 of wedge structure equipped with the decline cooperated with the through-hole 301 is fixed with elasticity on the movable block 302
Part 304, the one end of the elastic component 304 far from the movable block 302 and the positive outer plastic part 5 or the negative outer
Plastic part connection, the movable block 302 is for sealing the through-hole 301, the movable block 302 and the fixed company of the through-hole 301
Connect or in the through-hole 301 upwards activity；The utility model setting decline wedge-shaped through-hole 301 and can upwards it is movable
The movable block 302 of wedge structure, can be when cell internal pressure be greater than external pressure, and movable block is movable upwards, inside and outside battery
Portion's perforation, inside battery pressure release；The elastic component 304 of setting, not only can be to give movable block 302 from bottom to top in balancing battery
Power, i.e. elastic component 304 play the role of one gas evolution threshold of setting；And when inside battery air pressure passes through through-hole 301
After evolution, the power of elastic component 304 can in time reset movable block 302, and reduction extraneous gas enters inside battery and makes to battery
At pollution.
Specifically, the through-hole 301 is the hole of frustum cone structure wide at the top and narrow at the bottom, the movable block in the through-hole 301
302 be the frustum cone structure wide at the top and narrow at the bottom cooperated with the through-hole 301, and the elastic component 304 is arranged in the movable block 302
The top of frustum cone structure.
Hot melt layer 303 is equipped between the movable block 302 and the through-hole 301, the movable block 302 passes through the heat
Crucible zone 303 is fixed in the through-hole 301, specifically, setting elastic component 304, not only can in balancing battery under
Give the power of movable block 302 upwards, cause hot melt layer 303 to melt even if battery temperature is sufficiently high, the pressure in battery will not and
When release；I.e. elastic component 304 plays the role of one gas evolution threshold of setting.
It is further preferred that the hot melt layer 303 is hot melt adhesive, the fusing point of the hot melt layer 303 is 75-85 DEG C.
Further, the elastic component 304 is spring, and one end of the spring is fixedly connected with the movable block 302.
The coping plate includes the first coping plate 3 and the second coping plate 4, first coping plate 3 and second top cover
Piece 4 is fixedly connected, and the junction of first coping plate 3 and second coping plate 4 is equipped with explosion-protection equipment 6, the anode pole
The setting of column 1 is in first coping plate 3 far from described second coping plate, 4 one end, and the setting of negative pole 2 is on second top
Cover plate 4 is far from described first coping plate, 3 one end.
The anode outer plastic part 5 is between the explosion-protection equipment 6 and the Positive Poles 1, the rotating sheet 401
It is arranged between the Positive Poles 1 or the negative pole 2 and the explosion-protection equipment 6, the through-hole 301 is also disposed at described
Between Positive Poles 1 or the negative pole 2 and the explosion-protection equipment 6.
Specifically, the through-hole 301 is arranged on first coping plate 3, the anode outer plastic part 5 is located in institute
The top of through-hole 301 is stated, movable block 302 is equipped in the through-hole 301, the movable block 302 is equipped with elastic component 304, described
One end of elastic component 304 is fixedly connected with the movable block 302, and the other end is connect with the positive outer plastic part 5.
The surface of the rotating sheet 401 is equipped with conduct piece, and the rotating sheet 401 includes central contact portion and surrounds described
The edge deformation portion of central contact portion setting, the central contact portion and the edge deformation portion are integrally formed, and the center connects
The thickness of contact portion is greater than the thickness in the edge deformation portion.
The surface of the rotating sheet 401 is equipped with conduct piece, and the edge deformation portion is reached for secondary cell internal pressure
It is jacked up when to threshold value to close to conduct piece direction, the central contact portion synchronizes under the action of the edge deformation portion to close
The conduct piece direction jacks up, and the central contact portion contacts after jack-up with the conduct piece.
Difference from example 1 is that:
The through-hole 301 is the hole of frustum cone structure wide at the top and narrow at the bottom, the movable block 302 in the through-hole 301 be with
The frustum cone structure wide at the top and narrow at the bottom that the through-hole 301 cooperates, the elastic component 304 are arranged in 302 frustum cone structure of movable block
Top.
The elastic component 304 is spring, and one end of the spring is fixedly connected with the movable block 302.
The through-hole 301 is arranged on first coping plate 3, and the anode outer plastic part 5 is located in the through-hole
301 top, the through-hole 301 is interior to be equipped with movable block 302, and the movable block 302 is equipped with elastic component 304, the elastic component
304 one end is fixedly connected with the movable block 302, and the other end is connect with the positive outer plastic part 5.
Working principle: when inside battery leads to battery flatulence because of high temperature, electricity is worked as in the variation of 303 temperature sensor of hot melt layer
When pond temperature is gradually warmed up to 80 DEG C or so, hot melt layer 303 melts, and 302 through-hole 301 of movable block is no longer adhered, if inside battery
When pressure is applied to the power of movable block 302 greater than elastic component 304, movable block 302 is shifted up, the perforation of battery inside and outside, battery
Internal pressure relief；After the air pressure in battery restores normal, elastic component 304 is pressed down against movable block 302 and moves downward, and makes battery
Inside and outside separates, and after temperature decline, hot melt layer 303 solidifies again, and the through-hole 301 on movable block 302 and the first coping plate 3 is solid
It is fixed to arrive together, it is restored to original state；If battery only because of internal failure, causes, gas is sharply generated and high temperature increases, then
Hot melt layer 303 will not melt in time, and wedge movable block 302 does not move, then after inside battery air pressure increases to a certain extent, turn over
Rotor overturning, battery open circuit.
Secondary cell lamina tecti component disclosed by the utility model, the wedge-shaped through-hole 301 of the decline of setting and can be upward
The movable block 302 of movable wedge structure, can be when cell internal pressure be greater than external pressure, and movable block is movable upwards, electricity
The perforation of pond inside and outside, inside battery pressure release；The elastic component 304 of setting, not only can be to give movable block from bottom to top in balancing battery
302 power, i.e. elastic component 304 play the role of one gas evolution threshold of setting；And when inside battery air pressure is by leading to
After hole 301 escapes, the power of elastic component 304 can in time reset movable block 302, reduce extraneous gas and enter inside battery to electricity
Pond pollutes, and the utility model structure is simple, can effectively reduce lamina tecti to the wrong identification of cell safety hidden danger, reduce
Secondary cell failure risk in a high temperauture environment, increases the service life of battery, and flexibility is higher.
Above disclosed is only a kind of preferred embodiment of the utility model, certainly cannot be practical to limit with this
Novel interest field, therefore equivalent variations made according to the claim of the utility model still belong to what the utility model was covered
Range.
Claims (10)
1. a kind of secondary cell lamina tecti component, it is characterised in that: including Positive Poles (1), negative pole (2), coping plate, just
Pole outer plastic part (5) and negative outer plastic part, the anode outer plastic part (5) connect with the Positive Poles (1), institute
Negative outer plastic part is stated to connect with the negative pole (2), the Positive Poles (1) or the negative pole (2) with it is described
Coping plate insulation, the coping plate are equipped with rotating sheet (401) close to the Positive Poles (1) or the negative pole (2) one end；
The coping plate offers the wedge-shaped through-hole (301) of decline, the through-hole (301) far from the rotating sheet (401) one end
The movable block (302) of the interior wedge structure equipped with the decline cooperated with the through-hole (301), it is fixed on the movable block (302)
Equipped with elastic component (304), the elastic component (304) one end and the positive outer plastic part far from the movable block (302)
(5) or negative outer plastic part connection, the movable block (302) are used to seal the through-hole (301), the movable block
(302) it is fixedly connected with the through-hole (301) or the activity upwards in the through-hole (301).
2. secondary cell lamina tecti component according to claim 1, it is characterised in that: the through-hole (301) is under upper width
The hole of narrow frustum cone structure, the movable block (302) in the through-hole (301) is the upper width cooperated with the through-hole (301)
Under narrow frustum cone structure, the elastic component (304) is arranged at the top of the movable block (302) frustum cone structure.
3. secondary cell lamina tecti component according to claim 1 or 2, it is characterised in that: the movable block (302) and institute
It states and is equipped with hot melt layer (303) between through-hole (301), the movable block (302) is fixed at institute by the hot melt layer (303)
It states in through-hole (301).
4. secondary cell lamina tecti component according to claim 3, it is characterised in that: the hot melt layer (303) is hot melt
Glue, the fusing point of the hot melt layer (303) are 75-85 DEG C.
5. secondary cell lamina tecti component according to claim 3, it is characterised in that: the elastic component (304) is spring,
One end of the spring is fixedly connected with the movable block (302).
6. secondary cell lamina tecti component according to claim 4 or 5, it is characterised in that: the coping plate includes first
Coping plate (3) and the second coping plate (4), first coping plate (3) are fixedly connected with second coping plate (4), and described
The junction of one coping plate (3) and second coping plate (4) is equipped with explosion-protection equipment (6), and the Positive Poles (1) are arranged in institute
The first coping plate (3) are stated far from described second coping plate (4) one end, the negative pole (2) is arranged in second coping plate
(4) far from described first coping plate (3) one end.
7. secondary cell lamina tecti component according to claim 6, it is characterised in that: the anode outer plastic part (5)
Between the explosion-protection equipment (6) and the Positive Poles (1), the rotating sheet (401) is arranged in the Positive Poles (1)
Or between the negative pole (2) and the explosion-protection equipment (6), the through-hole (301) be also disposed at the Positive Poles (1) or
Between the negative pole (2) and the explosion-protection equipment (6).
8. secondary cell lamina tecti component according to claim 7, it is characterised in that: the through-hole (301) is arranged in institute
It states on the first coping plate (3), the anode outer plastic part (5) is located in the top of the through-hole (301), the through-hole
(301) movable block (302) are equipped in, the movable block (302) is equipped with elastic component (304), one end of the elastic component (304)
It is fixedly connected with the movable block (302), the other end is connect with the positive outer plastic part (5).
9. secondary cell lamina tecti component according to claim 6, it is characterised in that: the rotating sheet (401) just on
Side is equipped with conduct piece, and the rotating sheet (401) includes central contact portion and the edge deformation around central contact portion setting
Portion, the central contact portion and the edge deformation portion are integrally formed, and the thickness in the central contact portion becomes greater than the edge
The thickness in shape portion.
10. secondary cell lamina tecti component according to claim 9, it is characterised in that: the rotating sheet (401) just on
Side is equipped with conduct piece, pushes up when the edge deformation portion reaches threshold value for secondary cell internal pressure to close to conduct piece direction
Rise, the central contact portion under the action of edge deformation portion synchronize to close to the conduct piece direction jack up, it is described in
Centre contact portion contacts after jack-up with the conduct piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821911247.9U CN209266451U (en) | 2018-11-20 | 2018-11-20 | A kind of secondary cell lamina tecti component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821911247.9U CN209266451U (en) | 2018-11-20 | 2018-11-20 | A kind of secondary cell lamina tecti component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209266451U true CN209266451U (en) | 2019-08-16 |
Family
ID=67555731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821911247.9U Expired - Fee Related CN209266451U (en) | 2018-11-20 | 2018-11-20 | A kind of secondary cell lamina tecti component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209266451U (en) |
-
2018
- 2018-11-20 CN CN201821911247.9U patent/CN209266451U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190816 Termination date: 20201120 |