CN109686896A - A kind of explosion-proof valve - Google Patents
A kind of explosion-proof valve Download PDFInfo
- Publication number
- CN109686896A CN109686896A CN201910082238.6A CN201910082238A CN109686896A CN 109686896 A CN109686896 A CN 109686896A CN 201910082238 A CN201910082238 A CN 201910082238A CN 109686896 A CN109686896 A CN 109686896A
- Authority
- CN
- China
- Prior art keywords
- explosion
- proof
- accommodating cavity
- valve body
- pointed cone
- Prior art date
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses a kind of explosion-proof valves; including valve body, ventilated membrane and screening glass; valve body has an accommodating cavity; explosion-proof pointed cone is provided in accommodating cavity; explosion-proof pointed cone includes at least two rib pieces, and each rib piece, which connects to be formed, has addendum cone, the explosion-proof pointed cone in more rib types at the top of one, and gas vent is arranged on valve body; ventilated membrane and screening glass are provided on valve body, ventilated membrane is set between screening glass and explosion-proof pointed cone.Battery is realized and external gas exchanges by the explosion-proof valve being mounted on battery case, when cell pressure is excessive, reach critical value when, direction from rupture pressure disc letterweight to accommodating cavity and punctured by the explosion-proof pointed cone being arranged in accommodating cavity, more seamed edge structures on explosion-proof pointed cone are by ventilated membrane along the direction of rib piece in multidirectional upper tearing, so that the rib slot that air-flow is formed between rib piece and rib piece is realized and is shunted, so that the air-flow after shunting makes battery case be connected to by explosion-proof valve with outside, realize explosion prevention function by being discharged outside explosion-proof valve rapidly in gas vent.
Description
Technical field
The present invention relates to a kind of explosion-proof valves.
Background technique
New energy battery can generate amount of heat when in use, and air pressure is caused sharply to increase, and can lead under serious conditions
Explosion is caused, the explosion of new energy battery in order to prevent, it is matched practical to generally use explosion-proof valve, explosion-proof valve in the prior art
It is closed in valve, air pressure is uneven, and explosion-proof effect is poor.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of explosion-proof valves.
The scheme of the invention is be achieved:
A kind of explosion-proof valve, including valve body, ventilated membrane and screening glass, the valve body has an accommodating cavity, in the accommodating cavity
Be provided with explosion-proof pointed cone, the explosion-proof pointed cone includes at least two rib pieces, each rib piece connect to be formed a top have addendum cone,
In the explosion-proof pointed cone of more rib types, gas vent is set, the gas vent is connected to the accommodating cavity, on the valve body on the valve body
It is provided with the ventilated membrane and the screening glass, and the ventilated membrane is set between the screening glass and the explosion-proof pointed cone.
Further, the angles such as each described rib piece are arranged.
Further, the valve body includes pedestal and rear protection cap, and the rear protection cap is connect with the pedestal, the base
Seat tool has an accommodating cavity.
Further, the explosion-proof pointed cone is set on the pedestal and is set in the accommodating cavity, and the pedestal is opened
Equipped with gas vent, the rear protection cap offers venthole, and the venthole is connected to the gas vent.
Further, the pedestal offers a channel, and the channel is connected to the accommodating cavity, and the explosion-proof pointed cone is set
It is placed in the rear protection cap and passes through the channel and be set in the accommodating cavity, the rear protection cap offers gas vent.
Further, the quantity of the gas vent is multiple, and the gas vent is correspondingly arranged with the rib piece.
Further, the quantity of the rib piece is four.
It further, further include dustproof membrane, the dustproof membrane is attached at the valve body backwards to the one side of the explosion-proof pointed cone,
It is connected to the accommodating cavity with outside by the dustproof membrane.(specification also needs to further illustrate explosion-proof pointed cone position)
Further, further include sealing rubber ring and installation nut, be provided with external screw thread, the installation on the outside of the valve body
Nut has internal screw thread, and the external screw thread is spirally connected with the internal screw thread, the sealing rubber ring be sheathed on the outside of the valve body and
It is set between the installation nut and the valve body by pressure.
The beneficial effects of the present invention are:
Battery realizes the gas exchanges with outside by the explosion-proof valve being mounted on battery case, when cell pressure is excessive, reaches
When to critical value, direction from rupture pressure disc letterweight to accommodating cavity and punctured by the explosion-proof pointed cone being arranged in accommodating cavity, on explosion-proof pointed cone
More seamed edge structures by ventilated membrane along the direction of rib piece in multidirectional upper tearing so that the rib that air-flow is formed between rib piece and rib piece
Slot, which is realized, to be shunted so that the air-flow after shunting by being discharged outside explosion-proof valve rapidly in gas vent, make battery case by explosion-proof valve with
Explosion prevention function is realized in outside connection.
Detailed description of the invention
The invention will be further described with embodiment with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of explosion-proof valve in one embodiment of the invention.
Fig. 2 is the structural schematic diagram of pedestal in one embodiment of the invention.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.Below with reference to the attached drawing of the embodiment of the present invention, technical solution of the present invention is described further, the present invention is not only
It is limited to following specific embodiments.
It is to be appreciated that in the attached drawing of embodiment, the same or similar label correspond to the same or similar components.At this
In the description of invention, it is to be understood that if having term " upper ", " under ", " preceding ", " rear ", " left side ", " right side ", " top ", " bottom " etc. refer to
The orientation or positional relationship shown is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and simplifies
Description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, constructed and grasped with specific orientation
Make, therefore the terms describing the positional relationship in the drawings are only for illustration, should not be understood as the limitation to this patent, for
For those skilled in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
The present invention provides a kind of explosion-proof valves, as shown in Figure 1, it is the explosion-proof valve of an embodiment, for example, following embodiment
According to being mounted on the outer housing of battery as an example, but the explosion-proof valve of this patent is not limited to be mounted on battery, tool
Body, including valve body, ventilated membrane 200 and screening glass 100, the valve body has an accommodating cavity 410, sets in the accommodating cavity 410
It is equipped with explosion-proof pointed cone 420, the explosion-proof pointed cone 420 includes at least two rib pieces 421, and each connection of rib piece 421 forms a top
Portion has addendum cone 422, the explosion-proof pointed cone 420 in more rib types, and gas vent is arranged on the valve body, is provided on the valve body described
Ventilated membrane 200 and the screening glass 100, and the ventilated membrane 200 is set to the screening glass 100 and the explosion-proof pointed cone 420
Between.
Specifically, explosion-proof valve includes the valve body to form explosion-proof valve profile, ventilated membrane 200 and use for realizing exchanging gas
In the screening glass 100 of protection ventilated membrane 200, the valve body has an accommodating cavity 410, is provided in the accommodating cavity 410 explosion-proof
Pointed cone 420 is provided with the ventilated membrane 200 and the screening glass 100 on the valve body, and the ventilated membrane 200 is set to institute
It states between screening glass 100 and the explosion-proof pointed cone 420, for example, explosion-proof pointed cone is set to the bottom of accommodating cavity 410, the valve body
It is upper that there is film paper mounting surface 440 and screening glass mounting surface 450, and screening glass mounting surface 450 is set to the outer of film paper mounting surface 440
Side, film paper mounting surface 440 are set to the outside of 410 bottom of accommodating cavity, and ventilated membrane 200 is set on film paper mounting surface 440, protection
Piece 100 is set on screening glass mounting surface 450, for example, being provided with hot molten column 451, the guarantor on the screening glass mounting surface 450
Bluff piece 100, on screening glass mounting surface 450, is arranged, so that ventilated membrane by 451 sweat soldering of hot molten column by above structure
200 are set between screening glass 100 and explosion-proof pointed cone 420, so that the pressure excreted from battery case first passes through screening glass
100 press to ventilated membrane 200 again, realize and are protected to it while ventilation by ventilated membrane 200, are not easily broken it.Into
One step, several air holes 110 are offered on the screening glass 100 to breathe freely, and allow pressure by the ventilated membrane 200 with reality
Now breathe freely.
Wherein, the explosion-proof pointed cone 420 is used to puncture ventilated membrane when air pressure is arranged to ventilated membrane, including at least two ribs
Piece 421, each rib piece connect to form a top with addendum cone 422, the explosion-proof pointed cone in more rib types, wherein explosion-proof pointed cone 420
Addendum cone 422 be arranged towards the ventilated membrane 200, cell pressure it is excessive, reach critical value when, ventilated membrane 200 presses to accommodating
The direction of chamber 410 is simultaneously punctured by the explosion-proof pointed cone 420 being arranged in accommodating cavity 410, since film paper ruptures, passes through battery case anti-
Quick-fried valve is connected to outside, realizes explosion prevention function.Specifically, in the present invention, explosion-proof pointed cone 420 is in more rib types, by least two ribs
Piece 421 is constituted, and in one embodiment, the rectangular triangle of shape of the rib piece, each rib piece is connection with its right-angle side
While being interconnected to form the explosion-proof pointed cone, for example, the quantity of the rib piece is two, which can be in "" font
Or in " one " font etc., for example, the quantity of the rib piece is three, which can be in "" font, for example, institute
The quantity for stating rib piece is four, which can be in " ten " font, for example, the quantity of the rib piece is five, this is explosion-proof
Pointed cone can be in "" font, for example, the quantity of the rib piece is six, which can be in "" font, this implementation
In example, not burdensome description.In another embodiment, the shape of the rib piece is triangle, for example, the quantity of the rib piece is
Two, two triangular ridges pieces it is arranged in a crossed manner formed in "" font or being in " ten " explosion-proof pointed cones of font etc., for example, described
The quantity of rib piece is three, and arranged in a crossed manner formed of three triangular ridges pieces is in "" the explosion-proof pointed cone of font, in the present embodiment,
Not burdensome description.Rib piece of the invention can also be the rib piece of other polygonized structures, be made of at least two polygons more
Rib type, the explosion-proof pointed cone with an addendum cone, are within the scope of the invention, in the present embodiment, not burdensome description.
Wherein, the explosion-proof pointed cone being made of at least two rib pieces, when ventilated membrane is pressed to explosion-proof pointed cone by air pressure, explosion-proof point
Cone 420 on more seamed edge structures by ventilated membrane 200 along the direction of rib piece in multidirectional upper tearing so that air-flow is along rib piece 421 and rib
The rib slot formed between piece 421, which is realized, to be shunted, and is discharged by gas vent, is realized quick pressure releasing.
In order to which realization pressure release is quickly discharged in the air-flow after shunting, as shown in Fig. 2, in one embodiment, the exhaust
The quantity in hole 430 is corresponding with the quantity of the rib piece, and a gas vent 430 is correspondingly arranged with a rib piece 421, another
In one embodiment, the quantity of the gas vent 430 be it is multiple, the gas vent 430 is correspondingly arranged with the rib piece 421, example
Such as, a gas vent 430 is correspondingly arranged with a rib piece 421, for example, two 430 holes of the exhaust and a rib
Piece 421 is correspondingly arranged, in the present embodiment, not burdensome description, by the setting of multiple gas vents so that the air-flow after shunting passes through
It is discharged rapidly in its corresponding gas vent, realizes quick row pressure and explosion-proof.
In one embodiment, in order to enable shunting uniformly, each rib piece 421 waits angles setting, i.e. rib piece and rib piece
Between spacing it is equidistant, by ventilated membrane 200 along rib piece direction tear, realize the multidirectional uniform divided flows of air-flow.
In order to completely cut off the impurity such as extraneous dust, aqueous vapor, avoids impurity from entering in battery case, in one embodiment, be somebody's turn to do
Explosion-proof valve further includes dustproof membrane 500, and the dustproof membrane 500 is attached at the valve body backwards to the one side of the explosion-proof pointed cone 420, institute
Dustproof membrane 500 is stated with airing function, connects the accommodating cavity with outside by the dustproof membrane while realizing dust-separation function
It is logical.
Specifically, in one embodiment, the structure of the explosion-proof valve are as follows:
Ventilated membrane 200, for realizing ventilation.
Screening glass 100 offers air hole 110, for protecting ventilated membrane.
Valve body, valve body include pedestal 400 and rear protection cap 600, and the rear protection cap 600 is connect with the pedestal 400, institute
Stating pedestal has an accommodating cavity 410, is provided with the explosion-proof pointed cone 420 with more rib type structures in accommodating cavity 410.
In a preferred embodiment, as depicted in figs. 1 and 2, the structure of the explosion-proof valve are as follows:
Ventilated membrane 200, for realizing ventilation.
Screening glass 100 offers air hole 110, for protecting ventilated membrane.
Valve body, valve body includes that pedestal 400 described in pedestal 400 and rear protection cap 600 has an accommodating cavity 410, described explosion-proof
Pointed cone 420 is set on the pedestal 400 and is set in the accommodating cavity 410, and the pedestal 400 offers gas vent 430,
Protection cap 600 is connect with the pedestal 400 after described, and the rear protection cap 600 offers venthole 610, the venthole 610
It is connected to the gas vent 430, that is to say, that accommodating cavity 410 passes through the outside of gas vent 430 and venthole 610 and explosion-proof valve
Connection.
By the way that explosion-proof valve to be mounted on battery case, the hot pressing being discharged in battery case is entered in accommodating cavity by ventilated membrane,
Extraneous by gas vent and venthole discharge.When cell pressure is excessive, reach critical value when, rupture pressure disc letterweight is to accommodating cavity
Direction is simultaneously punctured by the explosion-proof pointed cone being arranged on pedestal, and more seamed edge structures on explosion-proof pointed cone are by ventilated membrane along the direction of rib piece
In multidirectional upper tearing, so that the rib slot that air-flow is formed between rib piece and rib piece is realized and is shunted, also, for example, the gas vent
Quantity be it is multiple, the gas vent is correspondingly arranged with the rib piece so that shunt after air-flow pass through pedestal on it is corresponding
Gas vent in the venthole that is discharged rapidly, and is opened up by rear protection cap be discharged outside explosion-proof valve, so that battery case is passed through explosion-proof valve
It is connected to outside, realizes explosion prevention function.
Completely cut off the impurity such as extraneous dust, aqueous vapor to realize, impurity is avoided to enter in battery case, in the present embodiment,
The explosion-proof valve further includes dustproof membrane, and the dustproof membrane is attached at the valve body backwards to the one side of the explosion-proof pointed cone, for example, described
Dustproof membrane is attached at pedestal backwards to the one side of explosion-proof pointed cone, and the dustproof membrane is covered on gas vent, for example, the dustproof membrane
It is attached in rear protection cap, and the dustproof membrane is covered on venthole, the dustproof membrane has airing function, realizes dust-separation function
It is connected to the accommodating cavity with outside by the dustproof membrane.
In another preferably embodiment, the structure of the explosion-proof valve are as follows:
Ventilated membrane, for realizing ventilation.
Screening glass, for protecting ventilated membrane.
Valve body, valve body include pedestal and rear protection cap, and the pedestal has an accommodating cavity, and it is logical that the pedestal offers one
Road, the channel are connected to the accommodating cavity, and the rear protection cap is connect with the pedestal, and the explosion-proof pointed cone is set to described
It is set in the accommodating cavity of pedestal in protection cap and across the channel afterwards, the rear protection cap offers gas vent.
By the way that explosion-proof valve to be mounted on battery case, the hot pressing being discharged in battery case is entered in accommodating cavity by ventilated membrane,
Extraneous by gas vent and venthole discharge.When cell pressure is excessive, reach critical value when, rupture pressure disc letterweight is to accommodating cavity
The direction and explosion-proof pointed cone that setting is covered by after punctures, more seamed edge structures on explosion-proof pointed cone are by ventilated membrane along the direction of rib piece
In multidirectional upper tearing, so that the rib slot that air-flow is formed between rib piece and rib piece is realized and is shunted, also, for example, the gas vent
Quantity be it is multiple, the gas vent is correspondingly arranged with the rib piece so that shunting after air-flow by rear protection cap with its
It is discharged outside explosion-proof valve rapidly in corresponding gas vent, battery case is made to be connected to by explosion-proof valve with outside, realize explosion prevention function.
Completely cut off the impurity such as extraneous dust, aqueous vapor to realize, impurity is avoided to enter in battery case, in the present embodiment,
The explosion-proof valve further includes dustproof membrane, and the dustproof membrane is attached at the valve body backwards to the one side of the explosion-proof pointed cone, for example, described
Dustproof membrane is attached in rear protection cap, and the dustproof membrane is covered on gas vent, and the dustproof membrane has airing function, is realized
It is connected to the accommodating cavity with outside by the dustproof membrane.
In order to realize sealing, in one embodiment, which further includes sealing rubber ring 310 and installs nut 320, close
Seal 310 is generally disposed on the bearing surface of battery case and valve body for the gap between sealed cell shell and valve body and seals it
Gap, wherein external screw thread is provided on the outside of the valve body, for example, the outside of the pedestal 400 is provided with external screw thread 460, institute
Stating installation nut 320 has internal screw thread 321, and the external screw thread 460 is spirally connected with the internal screw thread 321,310 sets of the sealing rubber ring
Set on the valve body outside and by pressure be set between the installation nut 320 and the valve body, realize seal.
The working principle of explosion-proof valve of the invention are as follows:
Battery realizes the gas exchanges with outside by the explosion-proof valve being mounted on battery case, when cell pressure is excessive, reaches
When to critical value, direction from rupture pressure disc letterweight to accommodating cavity and punctured by the explosion-proof pointed cone being arranged in accommodating cavity, on explosion-proof pointed cone
More seamed edge structures by ventilated membrane along the direction of rib piece in multidirectional upper tearing so that the rib that air-flow is formed between rib piece and rib piece
Slot, which is realized, to be shunted so that the air-flow after shunting by being discharged outside explosion-proof valve rapidly in gas vent, make battery case by explosion-proof valve with
Explosion prevention function is realized in outside connection.
Explosion-proof valve of the invention can be applied on the seal cases such as energy-storage battery, new energy battery, cabinet, including the present invention
Structure be in the protection scope of this patent.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of explosion-proof valve, which is characterized in that including valve body, ventilated membrane and screening glass, the valve body has an accommodating cavity, described
Explosion-proof pointed cone is provided in accommodating cavity, the explosion-proof pointed cone includes at least two rib pieces, and each rib piece connects to form a top
With addendum cone, in the explosion-proof pointed cone of more rib types, gas vent is set on the valve body, the gas vent is connected to the accommodating cavity,
Be provided with the ventilated membrane and the screening glass on the valve body, and the ventilated membrane be set to the screening glass with it is described explosion-proof
Between pointed cone.
2. explosion-proof valve according to claim 1, which is characterized in that the setting of the angles such as each described rib piece.
3. explosion-proof valve according to claim 1, which is characterized in that the valve body includes pedestal and rear protection cap, after described
Protection cap is connect with the pedestal, and the pedestal has an accommodating cavity.
4. explosion-proof valve according to claim 3, which is characterized in that the explosion-proof pointed cone is set on the pedestal and is arranged
In in the accommodating cavity, the pedestal offers gas vent, it is described after protection cap offer venthole, the venthole with it is described
Gas vent connection.
5. explosion-proof valve according to claim 3, which is characterized in that the pedestal offers a channel, the channel and institute
Accommodating cavity connection is stated, the explosion-proof pointed cone, which is set in the rear protection cap and passes through the channel, is set to the accommodating cavity
Interior, the rear protection cap offers gas vent.
6. explosion-proof valve according to claim 1, which is characterized in that the quantity of the gas vent is multiple, and the exhaust
Hole is correspondingly arranged with the rib piece.
7. explosion-proof valve according to claim 1, which is characterized in that the quantity of the rib piece is four.
8. explosion-proof valve according to claim 1, which is characterized in that further include dustproof membrane, the dustproof membrane is attached at described
Valve body is connected to the accommodating cavity with outside by the dustproof membrane backwards to the one side of the explosion-proof pointed cone.
9. explosion-proof valve according to claim 3, which is characterized in that further include sealing rubber ring and installation nut, the valve body
Outside be provided with external screw thread, the installation nut has internal screw thread, and the external screw thread is spirally connected with the internal screw thread, the sealing
Cushion rubber is sheathed on the outside of the valve body and is set between the installation nut and the valve body by pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910082238.6A CN109686896A (en) | 2019-01-28 | 2019-01-28 | A kind of explosion-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910082238.6A CN109686896A (en) | 2019-01-28 | 2019-01-28 | A kind of explosion-proof valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109686896A true CN109686896A (en) | 2019-04-26 |
Family
ID=66194952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910082238.6A Pending CN109686896A (en) | 2019-01-28 | 2019-01-28 | A kind of explosion-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109686896A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112002861A (en) * | 2020-07-18 | 2020-11-27 | 浙江晨人精密机械科技有限公司 | Battery explosion-proof valve |
| CN114069148A (en) * | 2020-07-30 | 2022-02-18 | 哲弗智能***（上海）有限公司 | Explosion-proof valve and calculation method of flow area of injection structure |
| US20220140432A1 (en) * | 2020-02-28 | 2022-05-05 | Contemporary Amperex Technology Co., Limited | Explosion-proof valve, battery pack, and apparatus |
-
2019
- 2019-01-28 CN CN201910082238.6A patent/CN109686896A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220140432A1 (en) * | 2020-02-28 | 2022-05-05 | Contemporary Amperex Technology Co., Limited | Explosion-proof valve, battery pack, and apparatus |
| CN112002861A (en) * | 2020-07-18 | 2020-11-27 | 浙江晨人精密机械科技有限公司 | Battery explosion-proof valve |
| CN112002861B (en) * | 2020-07-18 | 2023-02-14 | 浙江晨人精密机械科技有限公司 | Battery explosion-proof valve |
| CN114069148A (en) * | 2020-07-30 | 2022-02-18 | 哲弗智能***（上海）有限公司 | Explosion-proof valve and calculation method of flow area of injection structure |
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