CN108390008A - It is a kind of to answer power apparatus for what new energy battery current was automatically cut off - Google Patents

It is a kind of to answer power apparatus for what new energy battery current was automatically cut off Download PDF

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Publication number
CN108390008A
CN108390008A CN201810374380.3A CN201810374380A CN108390008A CN 108390008 A CN108390008 A CN 108390008A CN 201810374380 A CN201810374380 A CN 201810374380A CN 108390008 A CN108390008 A CN 108390008A
Authority
CN
China
Prior art keywords
cut
stress
lever construction
battery
position limiting
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
Application number
CN201810374380.3A
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Chinese (zh)
Inventor
邱实
金炫中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU JUTIANHE METAL TECHNOLOGY Co Ltd
Original Assignee
SUZHOU JUTIANHE METAL TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SUZHOU JUTIANHE METAL TECHNOLOGY Co Ltd filed Critical SUZHOU JUTIANHE METAL TECHNOLOGY Co Ltd
Priority to CN201810374380.3A priority Critical patent/CN108390008A/en
Publication of CN108390008A publication Critical patent/CN108390008A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/572Means for preventing undesired use or discharge
    • H01M50/574Devices or arrangements for the interruption of current
    • H01M50/578Devices or arrangements for the interruption of current in response to pressure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00Safety devices for primary or secondary batteries
    • H01M2200/20Pressure-sensitive devices
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

Power apparatus being answered for what new energy battery current was automatically cut off an embodiment of the present invention provides a kind of, belongs to accessory battery field, including:Stress structure and lever construction;The stress structure is connect with the lever construction;The bottom surface of the stress structure is contacted with gas vent;The internal diameter of circular hole where the outer diameter of the stress structure is less than the gas vent;The fulcrum of the lever construction is located at the inner bottom surface of shell, and one end of the lever construction is connect with the upper surface of the stress structure, and the other end of the lever construction is connect with position limiting structure.By the way that electric current automatic disconnecting device is set to outside batteries, so as to avoid easily being snapped during internal resistance of cell drift and battery vibrations, reach effective security protection.In addition, since the electric current automatic disconnecting device is in outside batteries, avoids and contact the perils such as internal chemical solution generation explosion in battery exception, reduce the possibility of battery explosion, improve safety.

Description

It is a kind of to answer power apparatus for what new energy battery current was automatically cut off
Technical field
The present invention relates to accessory battery field, more particularly to a kind of stress dress automatically cut off for new energy battery current It sets.
Background technology
Lithium battery is gradually received by market, and fast development is got up due to its excellent characteristic.But in lithium battery Use during, there are the unsafe problems such as battery explosion when over-charging of battery or short circuit.
The technical solution that the prior art is provided to solve the above-mentioned problems is by CID (Current Interrupt Device, electric current automatic disconnecting device) combination plate is connected together as electric current by sealing welding with Aluminum cover and cuts automatically Disconnected device, is set to inside battery.
But during using the technical solution, since the electric current automatic disconnecting device is in inside battery, and it is pushed up It is not connected between lid and Aluminum cover, is susceptible to head cover activity, the internal resistance of cell is caused to drift about, can not also resist battery vibrations, It is easily snapped during battery vibrations, is never unable to reach effective security protection.In addition, due to the electric current automatic disconnecting device In inside battery, in battery exception, it is easy contact internal chemical solution and the perils such as explosion occurs.Increase battery explosion Possibility, instead further increase there are security risks.
Invention content
In order to solve problems in the prior art, an embodiment of the present invention provides one kind cuts automatically for new energy battery current Disconnected answers power apparatus.The technical solution is as follows:
A kind of the answer power apparatus, described device automatically cut off for new energy battery current include:
Stress structure and lever construction;
The stress structure is connect with the lever construction;The bottom surface of the stress structure is contacted with gas vent;It is described to answer The internal diameter of circular hole where the outer diameter of power structure is less than the gas vent;
The fulcrum of the lever construction is located at the inner bottom surface of shell, one end of the lever construction and the stress structure Upper surface connects, and the other end of the lever construction is connect with position limiting structure;
When the row of exhausting-gas hole does not deform upon, cut-off structure is contacted with terminal base, transmits the input and output of battery Electric current;
When the row of exhausting-gas hole deforms upon, the stress structure is moved along the circular hole, and drives the lever knot Structure one end movement connected to it, position limiting structure disconnect with cut-off structure, so that the cut-off structure is disconnected with terminal base and connect It touches, disconnects input and the output current of battery.
Preferably,
The stress structure is cylindricality, and the lower surface of the stress structure is inclined-plane.
Preferably,
The upper surface of the stress structure includes cylindrical projections structure or article shape protrusion structure, the cylindrical protrusions knot Structure is corresponding with the connection minor structure.
Preferably,
The position limiting structure is connect with the side of the shell by an elastomeric element;
The top of the position limiting structure includes a protrusion part;
The cut-off structure is in the power supply state, and the protrusion part is located at lives with the cut-off structure and terminal board On the opposite other end in dynamic connection one end;
The cut-off structure is in the off-position, and the protrusion part is located at lives with the cut-off structure and terminal board The opposite other end in dynamic connection one end disconnects;Or
The top of the position limiting structure includes a hollow space, and one end phase is flexibly connected with terminal board with the cut-off structure To the other end include a projection portion, the projection portion is corresponding with the size of the hollow space;
The cut-off structure is in the power supply state, and the projection portion is snapped in the hollow space;
The cut-off structure is in the off-position, and the projection portion is disconnected with the hollow space.
On the other hand, power apparatus being answered for what new energy battery current was automatically cut off an embodiment of the present invention provides a kind of, Described device includes:
Stress structure and lever construction;
The stress structure is connect with the lever construction;The bottom surface of the stress structure is contacted with gas vent;It is described disconnected The part that the bottom surface of electric structure is contacted with the stress structure includes at least an elastic construction;The outer diameter of the stress structure is less than The internal diameter of circular hole where the gas vent;The elastic construction includes at least shrapnel;
The fulcrum of the lever construction is located at the inner bottom surface of shell, and one end of the lever construction is located at the stress structure Upper surface a groove in, the other end of the lever construction is contacted with position limiting structure;
When the row of exhausting-gas hole does not deform upon, cut-off structure is contacted with terminal base, transmits the input and output of battery Electric current;
When the row of exhausting-gas hole deforms upon, the stress structure is moved along the circular hole, and drives the lever knot The movement of structure one end connected to it, under the action of the elastic construction and the position limiting structure, make the cut-off structure with Terminal base disconnects contact, disconnects input and the output current of battery.
Optionally,
The stress structure is cylindricality, and the lower surface of the stress structure is inclined-plane.
Optionally,
The position limiting structure is connect with the side of the shell by an elastomeric element;
The top of the position limiting structure includes a protrusion part;
The cut-off structure is in the power supply state, and the protrusion part is located at lives with the cut-off structure and terminal board On the opposite other end in dynamic connection one end;
The cut-off structure is in the off-position, and the protrusion part is located at lives with the cut-off structure and terminal board The opposite other end in dynamic connection one end disconnects;Or
The top of the position limiting structure includes a hollow space, and one end phase is flexibly connected with terminal board with the cut-off structure To the other end include a projection portion, the projection portion is corresponding with the size of the hollow space;
The cut-off structure is in the power supply state, and the projection portion is snapped in the hollow space;
The cut-off structure is in the off-position, and the projection portion is disconnected with the hollow space.
An embodiment of the present invention provides a kind of power apparatus is answered for what new energy battery current was automatically cut off, including:Stress Structure and lever construction;The stress structure is connect with the lever construction;The bottom surface of the stress structure connects with gas vent It touches;The internal diameter of circular hole where the outer diameter of the stress structure is less than the gas vent;The fulcrum of the lever construction is located at shell Inner bottom surface, one end of the lever construction connect with the upper surface of the stress structure, the other end of the lever construction with Position limiting structure connects;When the row of exhausting-gas hole does not deform upon, cut-off structure is contacted with terminal base, transmit battery input and Output current;When the row of exhausting-gas hole deforms upon, the stress structure is moved along the circular hole, and drives the lever knot Structure one end movement connected to it, position limiting structure disconnect with cut-off structure, so that the cut-off structure is disconnected with terminal base and connect It touches, disconnects input and the output current of battery.By the way that electric current automatic disconnecting device is set to outside batteries, so as to avoid The internal resistance of cell drifts about and battery vibrations are easily snapped in the process, reaches effective security protection.In addition, since the electric current is automatic Disconnecting device avoids in outside batteries and contacts the perils such as internal chemical solution generation explosion in battery exception, reduce The possibility of battery explosion, improves safety.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings Attached drawing.
Fig. 1 is that a kind of stress apparatus structure automatically cut off for new energy battery current provided in an embodiment of the present invention shows It is intended to.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention Figure, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only this Invention a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art exist The every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
Power apparatus being answered for what new energy battery current was automatically cut off an embodiment of the present invention provides a kind of, the device application In a kind of battery including at least gas vent, in addition to this, the device that the embodiment of the present invention is provided can be applied to battery It multiple scenes, the embodiment of the present invention such as tests, produce, using to be not limited specific usage scenario.
In addition to this, the device that the embodiment of the present invention is provided can be fixedly installed on battery, can also be detachable It is installed on battery, is convenient for changing and sustainable use.
Embodiment one
Power apparatus being answered for what new energy battery current was automatically cut off an embodiment of the present invention provides a kind of, the device packet It includes:
Stress structure and lever construction;
Stress structure is connect with lever construction;The bottom surface of stress structure is contacted with gas vent;The bottom surface of cut-off structure with answer The part of power structure contact includes at least an elastic construction;The internal diameter of circular hole where the outer diameter of stress structure is less than gas vent;
The fulcrum of lever construction is located at the inner bottom surface of shell, and one end of lever construction is located at the one of the upper surface of stress structure In a groove, the other end of lever construction is contacted with position limiting structure;
When row of exhausting-gas hole does not deform upon, cut-off structure is contacted with terminal base, transmits input and the output current of battery;
When row of exhausting-gas hole deforms upon, stress structure is moved along circular hole, and drives lever construction one end connected to it It is mobile, under the action of elastic construction and position limiting structure, so that cut-off structure is disconnected with terminal base and contact, disconnect the input of battery And output current.
Optionally,
Stress structure is cylindricality, and the lower surface of stress structure is inclined-plane.
Optionally,
The side of position limiting structure and shell is connected by an elastomeric element;
The top of position limiting structure includes a hollow space, and opposite another in one end is flexibly connected with cut-off structure with terminal board End includes a projection portion, and projection portion is corresponding with the size of hollow space;
Cut-off structure is in power supply state, and projection portion is snapped in hollow space;
Cut-off structure is in off-position, and projection portion is disconnected with hollow space.
Power apparatus being answered for what new energy battery current was automatically cut off an embodiment of the present invention provides a kind of, by by electric current Automatic disconnecting device is set to outside batteries, so as to avoid easily being snapped during internal resistance of cell drift and battery vibrations, reaches To effective security protection.In addition, since the electric current automatic disconnecting device is in outside batteries, avoids and contacted in battery exception The perils such as explosion occur for internal chemical solution, have reduced the possibility of battery explosion, have improved safety.
Embodiment two
Power apparatus being answered for what new energy battery current was automatically cut off an embodiment of the present invention provides a kind of, the device packet It includes:
Stress structure and lever construction;
Stress structure is connect with lever construction;The bottom surface of stress structure is contacted with gas vent;The outer diameter of stress structure is less than The internal diameter of circular hole where gas vent;
The fulcrum of lever construction is located at the inner bottom surface of shell, and one end of lever construction and the upper surface of stress structure connect, The other end of lever construction is connect with position limiting structure;
When row of exhausting-gas hole does not deform upon, cut-off structure is contacted with terminal base, transmits input and the output current of battery;
When row of exhausting-gas hole deforms upon, stress structure is moved along circular hole, and drives lever construction one end connected to it Mobile, position limiting structure is disconnected with cut-off structure, and cut-off structure is made to be contacted with terminal base disconnection, disconnect battery input and Output current.
Preferably,
Stress structure is cylindricality, and the lower surface of stress structure is inclined-plane.
Preferably,
The upper surface of stress structure includes cylindrical projections structure or article shape protrusion structure, cylindrical protrusions structure with connect Minor structure corresponds to.
Preferably,
The side of position limiting structure and shell is connected by an elastomeric element;
The top of position limiting structure includes a protrusion part;
Cut-off structure is in power supply state, and protrusion part is opposite positioned at one end is flexibly connected with cut-off structure with terminal board On the other end;
Cut-off structure is in off-position, and protrusion part is opposite positioned at one end is flexibly connected with cut-off structure with terminal board The other end disconnects;Or
The top of position limiting structure includes a hollow space, and opposite another in one end is flexibly connected with cut-off structure with terminal board End includes a projection portion, and projection portion is corresponding with the size of hollow space;
Cut-off structure is in power supply state, and projection portion is snapped in hollow space;
Cut-off structure is in off-position, and projection portion is disconnected with hollow space.
Power apparatus being answered for what new energy battery current was automatically cut off an embodiment of the present invention provides a kind of, by by electric current Automatic disconnecting device is set to outside batteries, so as to avoid easily being snapped during internal resistance of cell drift and battery vibrations, reaches To effective security protection.In addition, since the electric current automatic disconnecting device is in outside batteries, avoids and contacted in battery exception The perils such as explosion occur for internal chemical solution, have reduced the possibility of battery explosion, have improved safety.
Embodiment three
Power apparatus being answered for what new energy battery current was automatically cut off an embodiment of the present invention provides a kind of, the device packet It includes:
Stress structure and lever construction;
Stress structure is connect with lever construction;The bottom surface of stress structure is contacted with gas vent;The outer diameter of stress structure is less than The internal diameter of circular hole where gas vent;The embodiment of the present invention is not limited specific internal diameter and outer diameter.
The fulcrum of lever construction is located at the inner bottom surface of shell, and one end of lever construction and the upper surface of stress structure connect, The other end of lever construction is connect with position limiting structure;
When row of exhausting-gas hole does not deform upon, cut-off structure is contacted with terminal base, transmits input and the output current of battery;
Specifically, cut-off structure be conductive material, after cut-off structure is contacted with terminal base, battery current by terminal board, Cut-off structure and terminal base, forming circuit, to realize input and the output current of transmission battery.
When row of exhausting-gas hole deforms upon, stress structure is moved along circular hole, and drives lever construction one end connected to it Mobile, position limiting structure is disconnected with cut-off structure, and cut-off structure is made to be contacted with terminal base disconnection, disconnect battery input and Output current.
Specifically, being abnormal in inside battery, after generating gas, row of exhausting-gas hole deforms upon, and raises up, along circular hole Direction applies active force to stress structure, to make stress structure be moved along circular hole;Stress structure is linked with lever construction, is answered When power structure is moved along circular hole, lever construction position limiting structure movement in one end connected to it is driven, to which position limiting structure releases The device active force suffered in power supply state, on cut-off structure bar shaped concave structure elastic force effect, the device with One end of terminal board flexible connection is subjected to displacement for the center of circle, and the round concave structure on cut-off structure is contacted with terminal base disconnection, Disconnect input and the output current of battery.
Preferably,
Stress structure is cylindricality, and the lower surface of stress structure is inclined-plane.The shape of stress structure and the hole where gas vent The shape of shape position is corresponding, and the embodiment of the present invention is not limited specific shape.
Preferably,
The upper surface of stress structure includes cylindrical projections structure or article shape protrusion structure, the shape of cylindrical protrusions structure And size is corresponding with connection minor structure.The cylindrical projections structure or the connection of one end of article shape protrusion structure and lever construction;
Preferably,
The side of position limiting structure and shell is connected by an elastomeric element;In practical applications, which can be Spring;
The top of position limiting structure includes a protrusion part;
Cut-off structure is in power supply state, and protrusion part is opposite positioned at one end is flexibly connected with cut-off structure with terminal board On the other end;Cut-off structure is in power supply state, and projection portion card pair is flexibly connected one end phase with terminal board with cut-off structure To the other end downward pressure is provided, the elastic force for overcoming bar shaped concave structure to be provided so that round concave structure with Terminal base contact is more stablized, and the transmission of electric current is facilitated.
Cut-off structure is in off-position, and protrusion part is opposite positioned at one end is flexibly connected with cut-off structure with terminal board The other end disconnects;Or
The top of position limiting structure includes a hollow space, and opposite another in one end is flexibly connected with cut-off structure with terminal board End includes a projection portion, and projection portion is corresponding with the size of hollow space;
Cut-off structure is in power supply state, and projection portion is snapped in hollow space;Cut-off structure is in power supply state, protrusion Part is snapped in hollow space, the elastic force for overcoming bar shaped concave structure to be provided, so that round concave structure and terminal base Contact is more stablized, and the transmission of electric current is facilitated.
Cut-off structure is in off-position, and projection portion is disconnected with hollow space.
Power apparatus being answered for what new energy battery current was automatically cut off an embodiment of the present invention provides a kind of, by by electric current Automatic disconnecting device is set to outside batteries, so as to avoid easily being snapped during internal resistance of cell drift and battery vibrations, reaches To effective security protection.In addition, since the electric current automatic disconnecting device is in outside batteries, avoids and contacted in battery exception The perils such as explosion occur for internal chemical solution, have reduced the possibility of battery explosion, have improved safety.
Example IV
Power apparatus being answered for what new energy battery current was automatically cut off an embodiment of the present invention provides a kind of, referring to Fig.1 institute Show, which includes:
Stress structure 11 and lever construction 12;
The stress structure 11 is connect with the lever construction 12;The bottom surface of the stress structure 11 is contacted with gas vent; The part that the bottom surface of the cut-off structure is contacted with the stress structure 11 includes at least an elastic construction;The elastic construction is extremely Include shrapnel less;Attached drawing is referred to, the outer diameter of the stress structure is less than the internal diameter of gas vent place circular hole;
The fulcrum of the lever construction 12 is located at the inner bottom surface of shell, and one end of the lever construction 12 is located at the stress In one groove of the upper surface of structure 11, the other end of the lever construction 12 is contacted with position limiting structure 13;
When the row of exhausting-gas hole does not deform upon, cut-off structure is contacted with terminal base, transmits the input and output of battery Electric current;
Specifically, cut-off structure be conductive material, after cut-off structure is contacted with terminal base, battery current by terminal board, Cut-off structure and terminal base, forming circuit, to realize input and the output current of transmission battery.
When the row of exhausting-gas hole deforms upon, the stress structure 11 is moved along the circular hole, and drives the lever 12 one end connected to it of structure is moved, and under the action of the elastic construction and the position limiting structure 13, makes the power-off Structure is contacted with terminal base disconnection, disconnects input and the output current of battery.
Specifically, being abnormal in inside battery, after generating gas, row of exhausting-gas hole deforms upon, and raises up, along circular hole Direction applies active force to stress structure 11, to make stress structure 11 be moved along circular hole;Stress structure 11 and lever construction 12 links when stress structure 11 is moved along circular hole, drive the movement of 12 one end position limiting structure 13 connected to it of lever construction, from And position limiting structure 13 releases the device active force suffered in power supply state, is acted in elastic construction, the device with terminal One end of plate flexible connection is subjected to displacement, and cut-off structure is contacted with terminal base disconnection, disconnects input and the output current of battery.
Optionally,
The stress structure 11 is cylindricality, and the lower surface of the stress structure 11 is inclined-plane.The shape of stress structure 11 with The shape of poroid position where gas vent is corresponding, and the embodiment of the present invention is not limited specific shape.
Optionally,
The position limiting structure 13 is connect with the side of the shell by an elastomeric element;
The top of the position limiting structure includes a hollow space, and one end phase is flexibly connected with terminal board with the cut-off structure To the other end include a projection portion, the projection portion is corresponding with the size of the hollow space;
The cut-off structure is in the power supply state, and the projection portion is snapped in the hollow space;
The cut-off structure is in the off-position, and the projection portion is disconnected with the hollow space.
The above process and the principle described in embodiment two are identical as the principle described in embodiment two-phase similar structures, herein not It is repeated here again.
Power apparatus being answered for what new energy battery current was automatically cut off an embodiment of the present invention provides a kind of, by by electric current Automatic disconnecting device is set to outside batteries, so as to avoid easily being snapped during internal resistance of cell drift and battery vibrations, reaches To effective security protection.In addition, since the electric current automatic disconnecting device is in outside batteries, avoids and contacted in battery exception The perils such as explosion occur for internal chemical solution, have reduced the possibility of battery explosion, have improved safety.
The alternative embodiment that any combination forms the present invention may be used, herein no longer in above-mentioned all optional technical solutions It repeats one by one.
It should be noted that:The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, all at this Within the spirit and principle of invention, any modification, equivalent replacement, improvement and so on should be included in the protection model of the present invention Within enclosing.

Claims (7)

1. a kind of answering power apparatus for what new energy battery current was automatically cut off, which is characterized in that described device includes:
Stress structure and lever construction;
The stress structure is connect with the lever construction;The bottom surface of the stress structure is contacted with gas vent;The stress knot The internal diameter of circular hole where the outer diameter of structure is less than the gas vent;
The fulcrum of the lever construction is located at the inner bottom surface of shell, the upper table of one end of the lever construction and the stress structure Face connects, and the other end of the lever construction is connect with position limiting structure;
When the row of exhausting-gas hole does not deform upon, cut-off structure is contacted with terminal base, transmits input and the output current of battery;
When the row of exhausting-gas hole deforms upon, the stress structure is moved along the circular hole, and drive the lever construction with Its one end connected movement, position limiting structure are disconnected with cut-off structure, so that the cut-off structure is disconnected with terminal base and are contacted, break Open input and the output current of battery.
2. the apparatus according to claim 1, which is characterized in that
The stress structure is cylindricality, and the lower surface of the stress structure is inclined-plane.
3. the apparatus of claim 2, which is characterized in that
The upper surface of the stress structure includes cylindrical projections structure or article shape protrusion structure, the cylindrical protrusions structure with The connection minor structure corresponds to.
4. device according to claim 3, which is characterized in that
The position limiting structure is connect with the side of the shell by an elastomeric element;
The top of the position limiting structure includes a protrusion part;
The cut-off structure is in the power supply state, and the protrusion part is located to be connected with the cut-off structure and terminal board activity It connects on the opposite other end in one end;
The cut-off structure is in the off-position, and the protrusion part is located to be connected with the cut-off structure and terminal board activity The opposite other end in one end is connect to disconnect;Or
The top of the position limiting structure includes a hollow space, and it is opposite to be flexibly connected one end with the cut-off structure with terminal board The other end includes a projection portion, and the projection portion is corresponding with the size of the hollow space;
The cut-off structure is in the power supply state, and the projection portion is snapped in the hollow space;
The cut-off structure is in the off-position, and the projection portion is disconnected with the hollow space.
5. a kind of answering power apparatus for what new energy battery current was automatically cut off, which is characterized in that described device includes:
Stress structure and lever construction;
The stress structure is connect with the lever construction;The bottom surface of the stress structure is contacted with gas vent;The power-off knot The part that the bottom surface of structure is contacted with the stress structure includes at least an elastic construction;The outer diameter of the stress structure is less than described The internal diameter of circular hole where gas vent;The elastic construction includes at least shrapnel;
The fulcrum of the lever construction is located at the inner bottom surface of shell, and one end of the lever construction is located at the upper of the stress structure In one groove on surface, the other end of the lever construction is contacted with position limiting structure;
When the row of exhausting-gas hole does not deform upon, cut-off structure is contacted with terminal base, transmits input and the output current of battery;
When the row of exhausting-gas hole deforms upon, the stress structure is moved along the circular hole, and drive the lever construction with Its one end connected movement, under the action of the elastic construction and the position limiting structure, makes the cut-off structure and terminal Seat disconnects contact, disconnects input and the output current of battery.
6. device according to claim 5, which is characterized in that
The stress structure is cylindricality, and the lower surface of the stress structure is inclined-plane.
7. device according to claim 6, which is characterized in that
The position limiting structure is connect with the side of the shell by an elastomeric element;
The top of the position limiting structure includes a hollow space, and it is opposite to be flexibly connected one end with the cut-off structure with terminal board The other end includes a projection portion, and the projection portion is corresponding with the size of the hollow space;
The cut-off structure is in the power supply state, and the projection portion is snapped in the hollow space;
The cut-off structure is in the off-position, and the projection portion is disconnected with the hollow space.
CN201810374380.3A 2018-04-24 2018-04-24 It is a kind of to answer power apparatus for what new energy battery current was automatically cut off Pending CN108390008A (en)

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