CN108550775A - A kind of battery current automatic disconnecting device - Google Patents
A kind of battery current automatic disconnecting device Download PDFInfo
- Publication number
- CN108550775A CN108550775A CN201810374376.7A CN201810374376A CN108550775A CN 108550775 A CN108550775 A CN 108550775A CN 201810374376 A CN201810374376 A CN 201810374376A CN 108550775 A CN108550775 A CN 108550775A
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- Prior art keywords
- cut
- stress
- battery
- lever construction
- connect
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- 238000010276 construction Methods 0.000 claims abstract description 87
- 239000011796 hollow space material Substances 0.000 claims description 34
- 230000000694 effects Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 15
- 239000000126 substance Substances 0.000 abstract description 7
- 230000002159 abnormal effect Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 6
- 239000004020 conductor Substances 0.000 description 6
- NOQGZXFMHARMLW-UHFFFAOYSA-N Daminozide Chemical group CN(C)NC(=O)CCC(O)=O NOQGZXFMHARMLW-UHFFFAOYSA-N 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000012811 non-conductive material Substances 0.000 description 2
- 239000002305 electric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/578—Devices or arrangements for the interruption of current in response to pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
An embodiment of the present invention provides a kind of battery current automatic disconnecting devices, belong to accessory battery field.Including：Stress structure, cut-off structure and lever construction；Stress structure is connect with lever construction；The bottom surface of stress structure is contacted with gas vent；The internal diameter of circular hole where the outer diameter of stress structure is less than gas vent；One end of cut-off structure is flexibly connected with terminal board, and cut-off structure includes connection minor 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
Technical field
The present invention relates to accessory battery field, more particularly to a kind of battery current automatic disconnecting device.
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 a kind of battery current automatic disconnecting devices.Institute
It is as follows to state technical solution：
A kind of battery current automatic disconnecting device, described device include：
Cut-off structure, stress structure and lever construction；
One end of the cut-off structure is connect with terminal board by an elastomeric element, and the elastomeric element has electric conductivity
The middle section of the cut-off structure includes round concave structure；
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 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
Structure one end movement connected to it, under the action of the elastic construction and the position limiting structure, makes the cut-off structure
Round concave structure is contacted with terminal base disconnection, disconnects input and the output current of battery.
Preferably, described device further includes position limiting structure, and the medial surface of the position limiting structure and shell is filled by an elasticity
Set connection.
Preferably,
The stress structure is cylindricality, and the lower surface of the stress structure is inclined-plane.
Preferably,
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 the position limiting structure；
When the row of exhausting-gas hole deforms upon, the one end being connect with the upper surface of the stress structure is with the stress knot
The movement of structure and move, the position of the position limiting structure changes, control the cut-off structure state be off-position.
The lever construction is connect with the stress structure with the cut-off structure, and the stress structure movement passes through institute
Stating lever construction causes the cut-off structure generating state to change.
Preferably,
The upper surface of the stress structure includes cylindrical projections structure, the cylindrical protrusions structure and the connexon
Structure corresponds to.
Preferably, the stress structure further includes：
The upper surface of the stress structure includes strip bulge structure, the strip bulge structure and the connection minor structure
It is corresponding.
Preferably,
Connection minor structure included by the cut-off structure is round concave structure.
Preferably,
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.
In addition, additionally providing a kind of electric current automatic disconnecting device applied to battery, which is characterized in that described device packet
It includes：
Stress structure, cut-off 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；
One end of the cut-off structure is flexibly connected with terminal board, and the cut-off structure includes connection minor structure；
When the row of exhausting-gas hole does not deform upon, the connection minor structure is contacted with terminal base, transmit the input of battery with
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, makes the connection minor structure be disconnected with terminal base and contacts, the stress structure and the connection
Minor structure contacts, and 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；
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 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 battery current automatic disconnecting devices, including：Stress structure, cut-off 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；One end of cut-off structure is flexibly connected with terminal board, and cut-off structure includes connection minor structure；Row
When stomata row does not deform upon, connection minor structure is contacted with terminal base, transmits input and the output current of battery；Row of exhausting-gas hole
When deforming upon, stress structure is moved along circular hole, and drives lever construction one end movement connected to it, makes connection minor structure
It is contacted with terminal base disconnection, stress structure is contacted with connection minor structure, disconnects input and the output current of battery.Pass through exhaust
The cut-out of the deformation trigger current in hole, the electric current when battery is abnormal that has never been realized are automatically cut off, compared to manually controlling
Failure of current can prevent the safety issue caused extremely by battery, reliability higher much sooner.In addition, logical
It crosses and electric current automatic disconnecting device is set to outside batteries, during internal resistance of cell drift and battery vibrations
It easily snaps, reaches effective security protection.In addition, since the electric current automatic disconnecting device is in outside batteries, avoid in battery
Internal chemical solution is contacted when abnormal, the perils such as explosion occur, reduced the possibility of battery explosion, improved safety
Property.
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 a kind of battery current automatic disconnecting device structural schematic diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of battery current automatic disconnecting device structural schematic diagram provided in an embodiment of the present invention.
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.
An embodiment of the present invention provides a kind of battery current automatic disconnecting device, which is applied to a kind of row of including at least
The battery of stomata.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
Formula is installed on battery, is convenient for changing and sustainable use.
Embodiment one
An embodiment of the present invention provides a kind of battery current automatic disconnecting device, which includes：
Cut-off structure, stress structure and lever construction；One end of cut-off structure is connected with terminal board by an elastomeric element
It connects, elastomeric element has electric conductivity；
The middle section of cut-off structure includes round concave structure；Stress structure is connect with lever construction；Stress structure
Bottom surface is contacted with gas vent；The part that the bottom surface of cut-off structure is contacted with stress structure includes at least an elastic construction；Stress knot
The internal diameter of circular hole where the outer diameter of structure is less than gas vent；The elastic construction includes at least shrapnel；
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, the round concave structure of cut-off structure is made to be contacted with terminal base disconnection,
Disconnect input and the output current of battery.
Optionally, device further includes position limiting structure, and the medial surface of position limiting structure and shell is connected by an elastic device.
Optionally, stress structure is cylindricality, and the lower surface of stress structure is inclined-plane.
Optionally, the fulcrum of lever construction is located at the inner bottom surface of shell, one end of lever construction and the upper table of stress structure
Face connects, and the other end of lever construction is connect with position limiting structure；
When row of exhausting-gas hole deforms upon, the one end being connect with the upper surface of stress structure is moved with the movement of stress structure
Dynamic, the position of position limiting structure changes, and the state for controlling cut-off structure is off-position.
Lever construction is connect with stress structure with cut-off structure, and stress structure movement causes power-off to tie by lever construction
Structure generating state changes.
Optionally, the upper surface of stress structure includes cylindrical projections structure, cylindrical protrusions structure with connect minor structure
It is corresponding.
Optionally, stress structure further includes：
The upper surface of stress structure includes strip bulge structure, and strip bulge structure is corresponding with connection minor structure.
Optionally, the connection minor structure included by cut-off structure is round concave structure.
Optionally, 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.
An embodiment of the present invention provides a kind of battery current automatic disconnecting device, pass through the deformation trigger current of gas vent
Cut-out, the electric current when battery is abnormal that has never been realized automatically cuts off, compared to manually controlling failure of current, can more and
When prevent by the battery safety issue that is caused extremely, reliability higher.In addition, by by electric current automatic disconnecting device
Outside batteries are set to, so as to avoid easily being snapped during internal resistance of cell drift and battery vibrations, reach effective safety
Protection.In addition, since the electric current automatic disconnecting device is in outside batteries, the contact internal chemical solution in battery exception is avoided
The perils such as explosion occur, has reduced the possibility of battery explosion, has improved safety.
Embodiment two
An embodiment of the present invention provides a kind of battery current automatic disconnecting device, which includes：
Stress structure, cut-off 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；
One end of the cut-off structure is connect with terminal board by an elastomeric element, and the elastomeric element has electric conductivity；
When row of exhausting-gas hole does not deform upon, connection minor structure is contacted with terminal base, transmits input and the output electricity of battery
Stream；
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, so that connection minor structure is disconnected with terminal base and contact, stress structure is contacted with minor structure is connected, disconnect battery input and
Output current.
Preferably, device further includes position limiting structure, and the medial surface of position limiting structure and shell is connected by an elastic device.
Preferably,
Stress structure is cylindricality, and the lower surface of stress structure is inclined-plane.
Preferably,
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 deforms upon, the one end being connect with the upper surface of stress structure is moved with the movement of stress structure
Dynamic, the position of position limiting structure changes, and the state for controlling cut-off structure is off-position.
Lever construction is connect with stress structure with cut-off structure, and stress structure movement causes power-off to tie by lever construction
Structure generating state changes.
Preferably,
The upper surface of stress structure includes cylindrical projections structure, and cylindrical protrusions structure is corresponding with connection minor structure.
Preferably, stress structure further includes：
The upper surface of stress structure includes strip bulge structure, and strip bulge structure is corresponding with connection minor structure.
Preferably,
Connection minor structure included by cut-off structure is round concave structure.
Preferably,
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 12 with terminal board
The other end disconnect；Or
The top of position limiting structure includes a hollow space, and opposite another in one end is flexibly connected with cut-off structure 12 with terminal board
One 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.
An embodiment of the present invention provides a kind of battery current automatic disconnecting device, pass through the deformation trigger current of gas vent
Cut-out, the electric current when battery is abnormal that has never been realized automatically cuts off, compared to manually controlling failure of current, can more and
When prevent by the battery safety issue that is caused extremely, reliability higher.In addition, by by electric current automatic disconnecting device
Outside batteries are set to, so as to avoid easily being snapped during internal resistance of cell drift and battery vibrations, reach effective safety
Protection.In addition, since the electric current automatic disconnecting device is in outside batteries, the contact internal chemical solution in battery exception is avoided
The perils such as explosion occur, has reduced the possibility of battery explosion, has improved safety.
Embodiment three
An embodiment of the present invention provides a kind of battery current automatic disconnecting devices, and shown referring to Fig.1, which includes：
Cut-off structure 11, stress structure 12 and lever construction 13；
One end of the cut-off structure 11 is connect with terminal board by an elastomeric element, and the elastomeric element has conduction
Property；
The middle section of cut-off structure 11 includes round concave structure；Stress structure 12 is connect with lever construction 13；Stress
The bottom surface of structure 12 is contacted with gas vent；The part that the bottom surface of cut-off structure 11 is contacted with stress structure 12 includes at least an elasticity
Structure 15；The internal diameter of circular hole where the outer diameter of stress structure 12 is less than gas vent；The elastic construction 15 includes at least shrapnel；
The fulcrum of lever construction 13 is located at the inner bottom surface of shell, and one end of lever construction 13 is located at the upper of stress structure 12
In one groove on surface, the other end of lever construction 13 is contacted with position limiting structure 14；
When row of exhausting-gas hole does not deform upon, cut-off structure 11 is contacted with terminal base, transmits input and the output electricity of battery
Stream；
Specifically, round concave structure is conductive material, after connection minor structure is contacted with terminal base, battery current passes through end
Daughter board, connection minor 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 12 is moved along circular hole, and drives lever construction 13 connected to it
One end is moved, and under the action of elastic construction 15 and position limiting structure 14, makes the round concave structure and terminal of cut-off structure 11
Seat disconnects contact, 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 12, to make stress structure 12 be moved along circular hole；Stress structure 12 and lever construction
13 links when stress structure 12 is moved along circular hole, drive the movement of 13 one end position limiting structure 14 connected to it of lever construction,
To which position limiting structure 14 releases the cut-off structure 11 active force suffered in power supply state, in elastic construction 15 and limit knot
Under the action of structure 14, which is subjected to displacement using the one end being flexibly connected with terminal board as the center of circle, connects minor structure and terminal base
Contact is disconnected, input and the output current of battery are disconnected.
Preferably, device further includes position limiting structure 14, and position limiting structure 14 and the medial surface of shell are connected by an elastic device
It connects.In practical applications, which can be spring.
Preferably,
Stress structure 12 is cylindricality, and the lower surface of stress structure 12 is inclined-plane.The shape of stress structure 12 and gas vent institute
Poroid position shape it is corresponding, the embodiment of the present invention is not limited specific shape.
Preferably,
The fulcrum of lever construction 13 is located at the inner bottom surface of shell, the upper table of one end and stress structure 12 of lever construction 13
Face connects, and the other end of lever construction 13 is connect with position limiting structure 14；
When row of exhausting-gas hole deforms upon, one end for being connect with the upper surface of stress structure 12 with stress structure 12 shifting
It moves and moves, the position of position limiting structure 14 changes, and the state of control cut-off structure 11 is off-position.
Lever construction 13 is connect with stress structure 12 with cut-off structure 11, and stress structure 12 moves, and passes through lever construction 13
1122 generating state of cut-off structure is caused to change.
Preferably,
The upper surface of stress structure 12 includes cylindrical projections structure, and cylindrical protrusions structure is corresponding with connection minor structure.
Preferably,
Connection minor structure included by cut-off structure 11 is round concave structure.The material of the circle concave structure is conduction
Material.
Preferably,
The top of position limiting structure 14 includes a protrusion part；
Cut-off structure 11 is in power supply state, and protrusion part is located at is flexibly connected one end phase with terminal board with cut-off structure 11
To the other end on；Cut-off structure 11 is in power supply state, and projection portion card pair connects with cut-off structure 11 and terminal board activity
It connects the opposite other end in one end and downward pressure is provided, the elastic force for overcoming bar shaped concave structure to be provided, so that round recessed
Shape structure is contacted with terminal base more to be stablized, and the transmission of electric current is facilitated.
Cut-off structure 11 is in off-position, and protrusion part is located at is flexibly connected one end phase with terminal board with cut-off structure 11
To the other end disconnect；Or
The top of position limiting structure 14 includes a hollow space, and it is opposite to be flexibly connected one end with cut-off structure 11 with terminal board 24
The other end include a projection portion, projection portion is corresponding with the size of hollow space；
Cut-off structure 11 is in power supply state, and projection portion is snapped in hollow space；Cut-off structure 11 is in power supply state,
Projection portion is snapped in hollow space, the elastic force for overcoming bar shaped concave structure to be provided, so that round concave structure and end
Stroma contact is more stablized, and the transmission of electric current is facilitated.
Cut-off structure 11 is in off-position, and projection portion is disconnected with hollow space.
Optionally, further include：
Two alar parts of cut-off structure 11 are smooth, and the middle section of cut-off structure 11 includes round concave structure；
When row of exhausting-gas hole does not deform upon, round concave structure is contacted with terminal base, transmits the input and output of battery
Electric current；
When row of exhausting-gas hole deforms upon, stress structure 12 is moved along circular hole, and drives lever construction 13 connected to it
One end is moved, and under the effect of round concave structure, and round concave structure is contacted with terminal base disconnection, disconnects the input of battery
And output current；
Preferably, in practical applications, in order to increase the stability and durability of the device, except what is contacted with terminal base
Part is conductive material, and the part for providing elastic force is except non-conductive material, and rest part is other materials, the embodiment of the present invention
Specific material is not limited.
Optionally, it deforms upon for convenience, the thickness of the gas vent can be 0.05~0.3mm, the embodiment of the present invention
Specific thickness is not limited.
Optionally, the one end being flexibly connected with terminal board includes two symmetrical protrusion parts；
In addition, one end of the described device described in the embodiment of the present invention be flexibly connected with terminal board can be understood as two it is right
The protrusion part of title is located at the lower section of terminal board opposite position, and is limited by limiting device, realizes the device and end
Flexible connection between daughter board, the sizes pair of the size of the limit part in the limiting device and two symmetrical protrusion parts
It answers；Ensure contact with terminal base of circle concave structure when the row of exhausting-gas hole does not deform upon and occurs in inside battery different
Recovery after normal and solution.
It is worth noting that, being cut automatically by a connection structure, the electric current between the electric current automatic disconnecting device and battery
Disconnected device is located at the side of the connection structure, and the other side of the connection structure includes a rectangular recess structure, in the rectangular recess
Between switching device of electric control, including an oval cavernous structure, the embodiment of the present invention are not subject to the thickness of the connection structure
It limits.
An embodiment of the present invention provides a kind of battery current automatic disconnecting device, pass through the deformation trigger current of gas vent
Cut-out, the electric current when battery is abnormal that has never been realized automatically cuts off, compared to manually controlling failure of current, can more and
When prevent by the battery safety issue that is caused extremely, reliability higher.In addition, by by electric current automatic disconnecting device
Outside batteries are set to, so as to avoid easily being snapped during internal resistance of cell drift and battery vibrations, reach effective safety
Protection.In addition, since the electric current automatic disconnecting device is in outside batteries, the contact internal chemical solution in battery exception is avoided
The perils such as explosion occur, has reduced the possibility of battery explosion, has improved safety.
Example IV
An embodiment of the present invention provides a kind of battery current automatic disconnecting device, which includes：
Stress structure, cut-off 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.
One end of the cut-off structure is connect with terminal board by an elastomeric element, and the elastomeric element has electric conductivity；
Cut-off structure includes connection minor structure；
When row of exhausting-gas hole does not deform upon, connection minor structure is contacted with terminal base, transmits input and the output electricity of battery
Stream；
Specifically, round concave structure is conductive material, after connection minor structure is contacted with terminal base, battery current passes through end
Daughter board, connection minor 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
It is mobile, so that connection minor structure is disconnected with terminal base and contact, stress structure is contacted with minor structure is connected, 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 cut-off structure active force suffered in power supply state is acted in bar shaped concave structure elastic force, and the power-off with terminal board to live
One end of dynamic connection is subjected to displacement for the center of circle, and connection minor structure is contacted with terminal base disconnection, disconnects the input and output of battery
Electric current.
Preferably, device further includes position limiting structure, and the medial surface of position limiting structure and shell is connected by an elastic device.
In practical application, which can be spring.
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 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 deforms upon, the one end being connect with the upper surface of stress structure is moved with the movement of stress structure
Dynamic, the position of position limiting structure changes, and the state for controlling cut-off structure is off-position.
Lever construction is connect with stress structure with cut-off structure, and stress structure movement causes power-off to tie by lever construction
Structure generating state changes.
Preferably,
The upper surface of stress structure includes cylindrical projections structure, and cylindrical protrusions structure is corresponding with connection minor structure.
Preferably, stress structure further includes：
The upper surface of stress structure includes strip bulge structure, and strip bulge structure is corresponding with connection minor structure.
Preferably,
Connection minor structure included by cut-off structure is round concave structure.The material of the circle concave structure is conduction material
Matter.
Preferably,
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.
Optionally, further include：
The internal diameter of bar shaped concave structure is less than the internal diameter of round concave structure；
When row of exhausting-gas hole does not deform upon, bar shaped concave structure is contacted with terminal base, transmits the input and output of battery
Electric current；
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, and under the effect of round concave structure elastic force, bar shaped concave structure is contacted with terminal base disconnection, disconnects the input of battery
And output current；
The upper surface of stress structure includes cylindrical projections structure.In practical applications, which can be
Conductive material.
Optionally, further include：
Two alar parts of cut-off structure respectively include a bar shaped concave structure, and the middle section of cut-off structure is smooth；
When row of exhausting-gas hole does not deform upon, bar shaped concave structure is contacted with terminal base, transmits the input and output of battery
Electric current；
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, and under the effect of bar shaped concave structure elastic force, bar shaped concave structure is contacted with terminal base disconnection, disconnects the input of battery
And output current；
The upper surface of stress structure includes article shape protrusion structure.In practical applications, which can be to lead
Electric material.
Optionally, further include：
Two alar parts of cut-off structure are smooth, and the middle section of cut-off structure includes round concave structure；
When row of exhausting-gas hole does not deform upon, round concave structure is contacted with terminal base, transmits the input and output of battery
Electric current；
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, and under the effect of round concave structure, round concave structure is disconnected with terminal base and being contacted, disconnect battery input and
Output current；
The upper surface of stress structure includes cylindrical projections structure.In practical applications, which can be
Conductive material.
Preferably, in practical applications, in order to increase the stability and durability of the device, except what is contacted with terminal base
Part is conductive material, and the part for providing elastic force is except non-conductive material, and rest part is other materials, the embodiment of the present invention
Specific material is not limited.
Optionally, it deforms upon for convenience, the thickness of the gas vent can be 0.05~0.3mm, the embodiment of the present invention
Specific thickness is not limited.
An embodiment of the present invention provides a kind of battery current automatic disconnecting device, pass through the deformation trigger current of gas vent
Cut-out, the electric current when battery is abnormal that has never been realized automatically cuts off, compared to manually controlling failure of current, can more and
When prevent by the battery safety issue that is caused extremely, reliability higher.In addition, by by electric current automatic disconnecting device
Outside batteries are set to, so as to avoid easily being snapped during internal resistance of cell drift and battery vibrations, reach effective safety
Protection.In addition, since the electric current automatic disconnecting device is in outside batteries, the contact internal chemical solution in battery exception is avoided
The perils such as explosion occur, has reduced the possibility of battery explosion, has 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 (10)
1. a kind of battery current automatic disconnecting device, which is characterized in that described device includes：
Cut-off structure, stress structure and lever construction；
One end of the cut-off structure is connect with terminal board by an elastomeric element, and the elastomeric element has electric conductivity；
The middle section of the cut-off structure includes round concave structure；
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 circle of the cut-off structure
Concave structure is contacted with terminal base disconnection, disconnects input and the output current of battery.
2. the apparatus according to claim 1, which is characterized in that described device further includes position limiting structure, the position limiting structure
It is connect by an elastic device with the medial surface of shell.
3. 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.
4. device according to claim 2 or 3, which is characterized in that
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 the position limiting structure；
When the row of exhausting-gas hole deforms upon, the one end being connect with the upper surface of the stress structure is with the stress structure
It moves and moves, the position of the position limiting structure changes, and the state for controlling the cut-off structure is off-position.
The lever construction is connect with the stress structure with the cut-off structure, and the stress structure movement passes through the thick stick
Rod structure causes the cut-off structure generating state to change.
5. device according to claim 4, which is characterized in that
The upper surface of the stress structure includes cylindrical projections structure, the cylindrical protrusions structure with connect minor structure pair
It answers.
6. device according to claim 4, which is characterized in that the stress structure further includes：
The upper surface of the stress structure includes strip bulge structure, the strip bulge structure and the connection minor structure pair
It answers.
7. device according to claim 4, which is characterized in that
Connection minor structure included by the cut-off structure is round concave structure.
8. the apparatus of claim 2, which is characterized in that
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.
9. a kind of electric current automatic disconnecting device applied to battery, which is characterized in that described device includes：
Stress structure, cut-off 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；
One end of the cut-off structure is flexibly connected with terminal board, and the cut-off structure includes connection minor structure；
When the row of exhausting-gas hole does not deform upon, the connection minor structure is contacted with terminal base, transmits the input of battery and defeated
Go out electric current；
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, makes the connection minor structure be disconnected with terminal base and contacts, the stress structure and the connexon knot
Structure contacts, and disconnects input and the output current of battery.
10. device according to claim 9, which is characterized in that
The stress structure is cylindricality, and the lower surface of the stress structure is inclined-plane；
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374376.7A CN108550775A (en) | 2018-04-24 | 2018-04-24 | A kind of battery current automatic disconnecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374376.7A CN108550775A (en) | 2018-04-24 | 2018-04-24 | A kind of battery current automatic disconnecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108550775A true CN108550775A (en) | 2018-09-18 |
Family
ID=63512307
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810374376.7A Pending CN108550775A (en) | 2018-04-24 | 2018-04-24 | A kind of battery current automatic disconnecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108550775A (en) |
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| JPH08185849A (en) * | 1994-12-27 | 1996-07-16 | Fuji Elelctrochem Co Ltd | Electrochemical element having explosion-proof safety device |
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| US6111327A (en) * | 1998-05-29 | 2000-08-29 | Bae; Myung Soon | Automatic power cut-off device for emergency situations |
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| KR20120059045A (en) * | 2010-11-30 | 2012-06-08 | 현대자동차주식회사 | Service Plug for High Voltage Battery |
| CN209016180U (en) * | 2018-04-24 | 2019-06-21 | 苏州聚天合金属科技有限公司 | A kind of battery current automatic disconnecting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2284347A (en) * | 1938-09-08 | 1942-05-26 | Westinghouse Electric & Mfg Co | Circuit interrupter |
| US3337824A (en) * | 1963-12-09 | 1967-08-22 | Albert B Rypinski | Circuit breaker having dashpot type electro-magnetic core and simplified actuating linkage |
| JPH06338305A (en) * | 1993-05-28 | 1994-12-06 | Matsushita Electric Ind Co Ltd | Explosion-proof sealing plate for thin nonaqueous electrolytic battery |
| JPH08185849A (en) * | 1994-12-27 | 1996-07-16 | Fuji Elelctrochem Co Ltd | Electrochemical element having explosion-proof safety device |
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| US6111327A (en) * | 1998-05-29 | 2000-08-29 | Bae; Myung Soon | Automatic power cut-off device for emergency situations |
| KR200269123Y1 (en) * | 2001-12-27 | 2002-03-18 | 정귀식 | Battery having abmormality current cut off device |
| KR20120059045A (en) * | 2010-11-30 | 2012-06-08 | 현대자동차주식회사 | Service Plug for High Voltage Battery |
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Address after: 215000 No.57 Torch Road, Suzhou high tech Zone, Suzhou City, Jiangsu Province Applicant after: Suzhou jutianhe Technology Co.,Ltd. Address before: 215000 No.57 Torch Road, Suzhou high tech Zone, Suzhou City, Jiangsu Province Applicant before: SUZHOU JUTIANHE METAL TECHNOLOGY Co.,Ltd. |