CN207059787U - Crash protection circuit, battery bag and vehicle for battery pack - Google Patents
Crash protection circuit, battery bag and vehicle for battery pack Download PDFInfo
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- CN207059787U CN207059787U CN201720926497.9U CN201720926497U CN207059787U CN 207059787 U CN207059787 U CN 207059787U CN 201720926497 U CN201720926497 U CN 201720926497U CN 207059787 U CN207059787 U CN 207059787U
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- 240000002853 Nelumbo nucifera Species 0.000 description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 3
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
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- 230000001771 impaired effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
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Abstract
This disclosure relates to a kind of crash protection circuit, battery bag and vehicle for battery pack.The crash protection circuit includes tie point (110) and the second branch road (120) parallel with one another, fuse (111) is provided with the tie point (110), the fuse (111) is used to connect with the battery pack (112), first switch (121) is provided with second branch road (120), second branch road (120) is used in parallel with the load circuit (130) by the battery pack (112) powered operation, the first switch (121) is used to close when carrier where the battery pack (112) collides, so that the second branch road (120) conducting.So, when carrier collides where battery pack, the closure of first switch can disconnect battery pack, ensure safety.It is dangerous caused by avoiding remnants a large amount of electric charges possible meanwhile the closure of first switch can also realize the electric discharge of load circuit.Thus, it is possible to greatly improve the security of battery.
Description
Technical field
This disclosure relates to field of batteries, in particular it relates to a kind of crash protection circuit, battery bag and car for battery pack
.
Background technology
In living now, battery is widely used in various occasions, therefore the application safety of battery is particularly significant.Work as electricity
When pond is collided or hit, due to reasons such as battery structure is impaired, battery overheats, it is possible that electric leakage, it is on fire situations such as,
It is extremely dangerous.Meanwhile if battery collides in supplying power for outside, a large amount of electric charges may be remained on load circuit, if can not be just
Normal discharge, very big potential safety hazard be present.
Utility model content
The purpose of the disclosure is to provide a kind of crash protection circuit, battery bag and vehicle for battery pack, to ensure electricity
Security of the pond when being collided.
To achieve these goals, according to the first aspect of the disclosure, there is provided a kind of crash protection circuit, the collision are protected
Protection circuit includes tie point parallel with one another and the second branch road, and fuse, the fuse are provided with the tie point
For being connected with the battery pack, be provided with first switch on second branch road, second branch road be used for by the electricity
The load circuit of pond group powered operation is in parallel, and the first switch is used to close when carrier where the battery pack collides
Close, so that second branch road turns on.
Alternatively, the first switch is the switch of first contactor；The crash protection circuit also includes the 3rd branch road
And power supply, the coil of the first contactor are arranged on the 3rd branch road, is additionally provided with the 3rd branch road
One inertia switch, first inertia switch are connected with the coil of the first contactor, the both ends difference of the 3rd branch road
It is connected to the positive pole and negative pole of the power supply；First inertia switch includes the first terminal, Second terminal and one end and connected
The first dynamic contact of the first terminal is connected to, first inertia switch touches for the carrier where the battery pack
When hitting, the other end of the first dynamic contact is switched to the state being connected with the Second terminal from off-state automatically,
So that the coil of the first contactor obtains electric, the switch closure of the first contactor.
Alternatively, the second switch connected with the fuse and/or the 3rd switch are additionally provided with the tie point,
Wherein, the second switch is used for the positive pole for being connected to the battery pack, and the described 3rd switchs for being connected to the battery pack
Negative pole, the second switch and it is described 3rd switch be used to disconnect when carrier where the battery pack collides, with
Disconnect the tie point.
Alternatively, the second switch is the switch of second contactor, and the 3rd switch is the switch of the 3rd contactor；
The crash protection circuit also includes power supply component and the second inertia switch, and the crash protection circuit also includes the 4th branch road
And/or the 5th branch road, wherein, the 4th branch road is connected between the power supply terminal and ground of the power supply component, and described second
The coil of contactor is arranged on the 4th branch road, and the 5th branch road is connected to the power supply terminal and ground of the power supply component
Between, the coil of the 3rd contactor is arranged on the 5th branch road；Second inertia switch is arranged on the described 4th
On branch road and/or the 5th branch road, second inertia switch is connected to described including third terminal, forth terminal and one end
Second dynamic contact of third terminal, second inertia switch are used for when carrier where the battery pack collides, from
The dynamic other end by the second dynamic contact disconnects the connection with the forth terminal, so that where second inertia switch
The 4th branch road and/or the contactor on the 5th branch road coil losing electricity, the contactor switches off.
Alternatively, the power supply component is battery management system.
Alternatively, the first switch is the switch of first contactor；Second inertia switch also includes the 5th terminal,
The second dynamic contact is selectively connected the forth terminal and the 5th terminal；The crash protection circuit also includes
3rd branch road and power supply, the both ends of the 3rd branch road are connected to the positive pole and negative pole of the power supply；It is described
The coil of first contactor is arranged on the 3rd branch road, and second inertia switch is additionally arranged on the 3rd branch road,
Wherein, when the other end of the second dynamic contact is connected to the forth terminal, where second inertia switch
The 4th branch road and/or the 5th branch road conducting, and the 3rd branch road disconnect；When the institute of the second dynamic contact
When stating the other end and being connected to five terminal, the 4th branch road and/or the described 5th where second inertia switch
Branch road disconnects, and the 3rd branch road turns on；Second inertia switch collides for the carrier where the battery pack
When, the other end of the second dynamic contact is switched to and the 5th end from the state being connected with the forth terminal automatically
The state of son connection, so that the contact on the 4th branch road and/or the 5th branch road where second inertia switch
The coil losing electricity of device, the contactor switch off, and the coil of the contactor on the 3rd branch road obtains electric, the contactor
Switch closure.
Alternatively, the power supply is dc source.
According to the second aspect of the disclosure, there is provided a kind of battery bag, the battery bag include：Battery pack；According to the disclosure
First aspect provide crash protection circuit.
According to the third aspect of the disclosure, there is provided a kind of vehicle, the vehicle include：Battery bag, the battery bag include
Battery pack；The crash protection circuit provided according to the first aspect of the disclosure；Load circuit, and second branch circuit parallel connection, and
By the battery-powered work.
Alternatively, the crash protection circuit is integrated in the battery bag with the battery pack.
Pass through above-mentioned technical proposal, this be used in the crash protection circuit of battery pack comprising tie point parallel with one another with
Second branch road, the fuse connected with battery pack is provided with tie point；Be provided with first switch on second branch road, and with by
The load circuit of battery-powered work is in parallel；When carrier collides where battery pack, first switch closure, so that
Second branch road turns on.So, when carrier collides where battery pack, on the one hand, the closure of first switch can make electricity
Pond group short circuit, so that fuse blows, battery pack disconnects, and battery pack is stopped supplying power for outside, ensures safety；On the other hand,
For load circuit equivalent to bulky capacitor, the closure of first switch can also realize the electric discharge of load circuit, avoid remnants a large amount of electricity
It is dangerous caused by lotus is possible, reduce potential safety hazard.Thus, it is possible to greatly improve the security of battery.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool
Body embodiment is used to explain the disclosure together, but does not form the limitation to the disclosure.In the accompanying drawings：
Fig. 1 is the signal of the crash protection circuit for battery pack provided according to a kind of embodiment of the present utility model
Figure.
Fig. 2 is the electricity of the crash protection circuit for battery pack provided according to another embodiment of the present utility model
Gas structural representation.
Fig. 3 is the electricity of the crash protection circuit for battery pack provided according to another embodiment of the present utility model
Gas structural representation.
Fig. 4 is the electricity of the crash protection circuit for battery pack provided according to another embodiment of the present utility model
Gas structural representation.
Description of reference numerals
The load circuit of 100 crash protection circuit, 110 120 second branch road of tie point 130
The battery pack 112 of 111 fuse 1121~112NForm the cell of battery pack
The coil of the first contactor of 210 first contactor, 121 first switch 211
The first terminal of 212 first the first inertia switches of inertia switch A
Second terminal P1 the first dynamic contacts of the inertia switches of B first
The power supply of 220 the 3rd branch road 230
The coil of the second contactor of 310 second contactor, 311 second switch 312
320 the 3rd contactors 321 the 3rd switch the coil of 322 the 3rd contactors
The branch road of 330 the 4th branch road 360 of power supply component 350 the 5th
The third terminal of 340 second the second inertia switches of inertia switch C
Forth terminal P2 the second dynamic contacts of the inertia switches of D second
5th terminal of the inertia switches of E second
Embodiment
The embodiment of the disclosure is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explained the disclosure, is not limited to the disclosure.
Fig. 1 is the signal of the crash protection circuit for battery pack provided according to a kind of embodiment of the present utility model
Figure.As shown in figure 1, the crash protection circuit 100 for being used for battery pack can include tie point 110 and second parallel with one another
Branch road 120, fuse 111 is provided with tie point 110, fuse 111 is used to connect with battery pack 112, the second branch road 120
On be provided with first switch 121, the second branch road 120 be used for it is in parallel with the load circuit 130 by the powered operation of battery pack 112, the
One switch 121 is used to close when the place carrier of battery pack 112 collides, so that the second branch road 120 turns on.
Fuse 111 is provided with tie point 110, the fuse 111 can be when electric current exceedes setting, with itself
Caused heat makes melt fusing so as to disconnecting circuit.Illustratively, fuse 111 can be vacuum fuse.Battery pack 112 can
To be made up of at least one cell, as shown in figure 1, the cell for forming the battery pack 112 is 1121~112N.This is molten
Disconnected device 111 is connected with battery pack 112, can be fused in time when the electric current of tie point 110 is excessive so as to be protected to it.The
Two branch roads 120 are in parallel with the load circuit 130 by the powered operation of battery pack 112.Illustratively, the battery pack may, for example, be vehicle
Power battery pack, the battery pack of electronic equipment etc..When the place carrier of battery pack 112 collides, set on the second branch road 120
The first switch 121 put closes, so that the second branch road 120 turns on.Illustratively, if the battery pack 112 is the power electric of vehicle
Pond group, then when vehicle collides or falls, the first switch 121 of the second branch road 120 of battery pack 112 is closed
Close, the second branch road 120 turns on.If for another example the battery pack 112 is the battery pack of mobile phone, then hit when mobile phone or
When appearance mobile phone drops, the first switch 121 of the second branch road 120 of battery pack 112 closes, and the second branch road 120 turns on.
After the conducting of second branch road 120, the short circuit of battery pack 112, fuse 111 fuses, and battery pack 112 disconnects, and stops external
Power supply；Meanwhile equivalent to one bulky capacitor of load circuit 130, the conducting of the second branch road 120 can also realize load circuit 130
Electric discharge.So, when carrier collides where battery pack, it is ensured that disconnect battery pack in time, and bleed off remaining electricity
Lotus, ensure safety, reduce potential safety hazard, improve the security of battery pack.
Specifically, as shown in Fig. 2 in one embodiment, the crash protection circuit 100 can also include the 3rd branch road
220 and power supply 230, first switch 121 is the switch of first contactor 210, and the coil 211 of first contactor 210 is set
On the 3rd branch road 220, the first inertia switch 212 is additionally provided with the 3rd branch road 220, first inertia switch 212 and first
The coil 211 of contactor 210 is connected, and the both ends of the 3rd branch road 220 are connected to the positive pole and negative pole of power supply 230；The
One inertia switch 212 includes the first dynamic contact that the first terminal A, Second terminal B and one end are connected to the first terminal A
P1, the first inertia switch 212 is used for when the place carrier of battery pack 112 collides, automatically by the another of the first dynamic contact P1
One end is switched to the state being connected with Second terminal B from off-state, so that the coil 211 of first contactor 210 must be electric, first
The switch closure of contactor 210.
Magnetic field can be produced when the coil of contactor flows through electric current, so that the switch closure of contactor, is usually used in circuit
In automatically control.When the place carrier of battery pack 112 collides, due to the first inertia switch 212 characteristic of itself, first
Dynamic contact P1 is connected with Second terminal B automatically so that the 3rd branch road 220 forms loop, first contactor with power supply 230
There is electric current in 210 coil 211 by the way that first switch 121 closes.At this moment, the circuit where tie point 110 forms short circuit,
Therefore fuse 111 fuses, and can reach the purpose of protection battery pack 112.Meanwhile load circuit 130 is equivalent to bulky capacitor,
The closure of one switch 121 can realize the electric discharge of load circuit 130, ensure safety.Wherein, power supply 230 can be direct current
Power supply, illustratively, the power supply 230 are voltage 12V dc source.
For electric automobile, the positive pole and/or negative pole of battery pack are usually provided with contactor, to protect battery pack.When
When electric automobile collides, the contactor of positive pole side and/or negative pole side can be disconnected in theory, and battery pack is broken with reaching
The purpose of electricity.And when the contactor of positive pole side and the contactor of negative pole side do not disconnect, illustrate that battery pack connects
Tentaculum adhesion, it can not be powered off by disconnecting positive and negative contactor for battery pack.And now, by foregoing circuit, in positive and negative contact
In the case that device does not disconnect, due to the presence of fuse, break the battery pack of short circuit in time, disconnect battery pack to external voltage
Output, ensure safety.Meanwhile by battery-powered load circuit because electric discharge can be achieved in short circuit, avoid remnants a large amount of electricity
The danger that lotus is likely to result in.
So, when carrier collides where battery pack, battery pack oneself can be realized by the design of circuit in itself
The electric discharge of dynamic circuit breaker electricity and load circuit, without dependent on controller, improving the security of battery and to battery
The independence of Preservation tactics.
In another embodiment, as shown in figure 3, being additionally provided with to be connected with fuse 111 in tie point 110
Two switches 311 and the 3rd switch 321, wherein, second switch 311 is used for the positive pole for being connected to battery pack 112, the 3rd switch 321
For being connected to the negative pole of battery pack 112, the switch of second switch 311 and the 3rd 321 is used in the place carrier hair of battery pack 112
Disconnected during raw collision, so that tie point 110 disconnects.
Alternatively, second switch 311 is the switch of second contactor 310, and the 3rd switch 321 is the 3rd contactor 320
Switch.When the place carrier of battery pack 112 collides, the switch of second switch 311 and the 3rd 321 can disconnect, tie point
110 disconnect, battery pack power-off.
Specifically, crash protection circuit 100 can also include the inertia switch 340 of power supply component 330 and second, crash protection
Circuit 100 can also include the 4th branch road 350 and the 5th branch road 360, wherein, the 4th branch road 350 is connected to power supply component 330
Between power supply terminal and ground, the coil 312 of second contactor 310 is arranged on the 4th branch road 350, and the 5th branch road 360 is connected to
Between the power supply terminal and ground of power supply component 330, the coil 322 of the 3rd contactor 320 is arranged on the 5th branch road 360.Second
Inertia switch 340 is separately positioned on the 4th branch road 350 and the 5th branch road 360, the second inertia switch 340 include third terminal C,
Forth terminal D and one end are connected to third terminal C the second dynamic contact P2, and the second inertia switch 340 is used in battery pack 112
When place carrier collides, the second dynamic contact P2 other end is disconnected into the connection with forth terminal D automatically, so that second
The coil losing electricity of 360 contactor, the switch of the contactor on the 4th branch road 350 and the 5th branch road where inertia switch 340
Disconnect.
Illustratively, power supply component 330 can be battery management system.For the side of the 4th branch road 350, the second inertia switch
340 the second dynamic contact P2 is connected with its forth terminal D, when the place carrier of battery pack 112 collides, because inertia is opened
The attribute of pass itself, the second dynamic contact P2 leave forth terminal D, are not turned between the power supply terminal and ground of power supply component 220,
The dead electricity of coil 312 of second contactor 310, second switch 311 disconnect.For the side of the 5th branch road 360, with recited above
The principle of four branch roads is identical, is not repeated to describe herein.
For electric automobile, second contactor is the positive contactor of batteries of electric automobile bag, and the 3rd contactor is electricity
The negative contactor of electrical automobile battery bag.When electric automobile collides, said process can be battery directly from physical angle
Battery pack power-off in bag, without the control dependent on controller, rapid and safety.
Fig. 3 merely illustrates the switch of second switch 311 and the 3rd for being provided with tie point 110 and being connected with fuse 111
321, crash protection circuit 100 includes the 4th branch road 350 and the 5th branch road 360, and the 4th branch road 350 and the 5th branch road
360 are provided with the situation of the second inertia switch 340 simultaneously.In the case of other, tie point 110 can be only provided with and fuse
The second switch 311 of 111 series connection is only provided with the 3rd switch 321 connected with fuse 111, or crash protection circuit
The 4th branch road 350 can be only included in 100 or only includes the 5th branch road 360, the second inertia switch 340 can be positioned only at the 4th
On branch road 350 or it is positioned only on the 5th branch road 360, the above situation belongs to the protection domain of the disclosure.
As shown in figure 4, on the basis of the circuit shown in Fig. 3, crash protection circuit 100 can also include the 3rd branch road
220 and power supply 230, the both ends of the 3rd branch road 220 be connected to the positive pole and negative pole of power supply 230.
First contactor 210 includes first switch 121 and coil 211.Second inertia switch 340 can also include the 5th
Terminal E, the second dynamic contact P2 can be selectively connected forth terminal D or the 5th terminal E.Illustratively, in default situations,
Second dynamic contact P2 is connected with forth terminal D, when being for example collided or falling, the second dynamic contact P2 from
The state being connected with the 5th terminal E is switched to the forth terminal D states being connected.
Fig. 4 is returned to, the coil 211 of first contactor 210 is arranged on the 3rd branch road 220, and the second inertia switch 340 is set
On the 3rd branch road 220, wherein, when the second dynamic contact P2 other end is connected to forth terminal D, the second inertia switch
The 4th branch road 350 where 340 turns on, and the 3rd branch road 220 disconnects；When the second dynamic contact P2 other end is connected to the 5th
During terminal E, the 4th branch road 350 where the second inertia switch 340 disconnects, and the 3rd branch road 220 turns on.
Second inertia switch 340 is used for when the place carrier of battery pack 112 collides, automatically by the second dynamic contact P2
The other end state being connected with the 5th terminal E is switched to from the state being connected with forth terminal D so that the second inertia switch
The coil losing electricity of the contactor on the 4th branch road 350 where 340, the contactor switch off, and on the 3rd branch road 220
The coil of contactor obtain electric, the switch of contactor closure.
For electric automobile, in the case of the battery bag where its battery pack is normal, the second dynamic contact P2's is another
End is connected to forth terminal D, and the 4th branch road 350 turns on, and second switch 311 closes, and battery bag is vehicle normal power supply.Work as generation
During collision, the second inertia switch 340 automatically switches the second dynamic contact P2 other end from the state being connected with forth terminal D
To the state being connected with the 5th terminal E, the dead electricity of coil 312, second switch 311 disconnects that (positive pole for disconnecting battery bag automatically connects
Tentaculum).Now coil 211 obtains electric, and first switch 121 closes.If second switch 311 normally disconnects, now battery pack is normally put
Electricity, ensure safety.Disconnected if now second switch 311 is normal, still in closure state, tie point 110 and second
Road 120 turns on, battery short circuit, and fuse 111 fuses, and battery pack disconnects supplying power for outside automatically.
By such mode, can be automatically powered off in the case where battery pack collides, again can be in contactor not
New solution method is taken in the case of normally open, battery pack is stopped supplying power for outside.Evade what each side may occur
Danger, securely and reliably.
It should be noted that the second inertia switch 340 that Fig. 4 merely illustrates the 4th branch road 350 also includes the 5th terminal E's
Situation, can be that the second inertia switch 340 of the 4th branch road 350 and the 5th branch road 360 all includes the 5th terminal under other situations
Second inertia switch 340 of E or only the 5th branch road 360 includes the 5th terminal E, and said circumstances belongs to the disclosure
Protection domain.
The disclosure also provides a kind of battery bag, including：Battery pack；It is used for battery according to what disclosure any embodiment provided
The crash protection circuit of group.
The disclosure also provides a kind of vehicle, and the vehicle includes：Battery bag, the battery bag include battery pack；According to this public affairs
The crash protection circuit for battery pack of any embodiment offer is provided；Load circuit, and second branch circuit parallel connection, and by institute
State battery-powered work.
Alternatively, the crash protection circuit is integrated in the battery bag with the battery pack.
The preferred embodiment of the disclosure is described in detail above in association with accompanying drawing, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical scheme of the disclosure
Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy no longer separately illustrates.
In addition, it can also be combined between a variety of embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought, it should equally be considered as disclosure disclosure of that.
Claims (10)
1. a kind of crash protection circuit for battery pack, it is characterised in that the crash protection circuit includes parallel with one another
Tie point (110) and the second branch road (120), fuse (111), the fuse are provided with the tie point (110)
(111) it is used to connect with the battery pack (112), is provided with first switch (121) on second branch road (120), described the
Two branch roads (120) are used for, the first switch in parallel with the load circuit (130) by the battery pack (112) powered operation
(121) it is used to close when carrier where the battery pack (112) collides, so that second branch road (120) turns on.
2. crash protection circuit according to claim 1, it is characterised in that the first switch (121) is the first contact
The switch of device (210)；
The crash protection circuit also includes the 3rd branch road (220) and power supply (230), the first contactor (210)
Coil (211) is arranged on the 3rd branch road (220), and the first inertia switch is additionally provided with the 3rd branch road (220)
(212), first inertia switch (212) is connected with the coil (211) of the first contactor (210), the 3rd branch road
(220) both ends are connected to the positive pole and negative pole of the power supply (230)；
First inertia switch (212) is connected to the first terminal including the first terminal (A), Second terminal (B) and one end
(A) the first dynamic contact (P1), first inertia switch (212) are used for the carrier where the battery pack (112) and occurred
During collision, the other end of the first dynamic contact (P1) is switched to the Second terminal (B) even from off-state automatically
The state connect, so that the coil (211) of the first contactor (210) must be electric, the switch of the first contactor (210) closes
Close.
3. crash protection circuit according to claim 1, it is characterised in that be additionally provided with the tie point (110)
The second switch (311) connected with the fuse (111) and/or the 3rd switch (321), wherein, the second switch (311)
For being connected to the positive pole of the battery pack (112), the 3rd switch (321) is used to be connected to the battery pack (112)
Negative pole, the second switch (311) and the 3rd switch (321) are used to the carrier where the battery pack (112) and occurred
Disconnected during collision, so that the tie point (110) disconnects.
4. crash protection circuit according to claim 3, it is characterised in that the second switch (311) is the second contact
The switch of device (310), the 3rd switch (321) are the switch of the 3rd contactor (320)；
The crash protection circuit also includes power supply component (330) and the second inertia switch (340), and the crash protection circuit is also
Including the 4th branch road (350) and/or the 5th branch road (360), wherein, the 4th branch road (350) is connected to the power supply component
(330) between power supply terminal and ground, the coil (312) of the second contactor (310) is arranged on the 4th branch road (350)
On, the 5th branch road (360) is connected between the power supply terminal and ground of the power supply component (330), the 3rd contactor
(320) coil (322) is arranged on the 5th branch road (360)；
Second inertia switch (340) is arranged on the 4th branch road (350) and/or the 5th branch road (360), described
Second inertia switch (340) is connected to the second of the third terminal (C) including third terminal (C), forth terminal (D) and one end
Dynamic contact (P2), second inertia switch (340) are used for when carrier where the battery pack (112) collides, from
The dynamic other end by the second dynamic contact (P2) disconnects the connection with the forth terminal (D), so that second inertia
The 4th branch road (350) where switch (340) and/or the coil losing electricity of the contactor on the 5th branch road (360), should
Contactor switches off.
5. crash protection circuit according to claim 4, it is characterised in that the power supply component is battery management system.
6. crash protection circuit according to claim 4, it is characterised in that the first switch (121) is the first contact
The switch of device (210)；Second inertia switch (340) also includes the 5th terminal (E), the second dynamic contact (P2) selection
Connect the forth terminal (D) and the 5th terminal (E) to property；
The crash protection circuit also includes the 3rd branch road (220) and power supply (230), and the two of the 3rd branch road (220)
End is connected to the positive pole and negative pole of the power supply (230)；
The coil (211) of the first contactor (210) is arranged on the 3rd branch road (220), second inertia switch
(340) it is additionally arranged on the 3rd branch road (220), wherein, when the other end of the second dynamic contact (P2) connects
When the forth terminal (D), the 4th branch road (350) and/or the described 5th where second inertia switch (340)
Branch road (360) turns on, and the 3rd branch road (220) disconnects；When the other end of the second dynamic contact (P2) connects
When the 5th terminal (E), the 4th branch road (350) and/or the described 5th where second inertia switch (340)
Branch road (360) disconnects, and the 3rd branch road (220) turns on；
When second inertia switch (340) is used for the carrier where the battery pack (112) and collided, automatically by described the
The other end of two dynamic contacts (P2) is switched to the 5th terminal (E) even from the state being connected with the forth terminal (D)
The state connect, so that the 4th branch road (350) and/or the 5th branch road where second inertia switch (340)
(360) coil losing electricity of the contactor on, the contactor switch off, and the contactor on the 3rd branch road (220)
Coil obtain electric, the switch of contactor closure.
7. the crash protection circuit according to claim 2 or 6, it is characterised in that the power supply is dc source.
8. a kind of battery bag, it is characterised in that the battery bag includes：
Battery pack；
Crash protection circuit according to any one of claim 1-7.
9. a kind of vehicle, it is characterised in that the vehicle includes：
Battery bag, the battery bag include battery pack；
Crash protection circuit according to any one of claim 1-7；
Load circuit, and second branch circuit parallel connection, and by the battery-powered work.
10. vehicle according to claim 9, it is characterised in that the crash protection circuit is integrated in the battery pack
In the battery bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720926497.9U CN207059787U (en) | 2017-07-27 | 2017-07-27 | Crash protection circuit, battery bag and vehicle for battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720926497.9U CN207059787U (en) | 2017-07-27 | 2017-07-27 | Crash protection circuit, battery bag and vehicle for battery pack |
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| CN207059787U true CN207059787U (en) | 2018-03-02 |
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|---|---|---|---|
| CN201720926497.9U Active CN207059787U (en) | 2017-07-27 | 2017-07-27 | Crash protection circuit, battery bag and vehicle for battery pack |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305042A (en) * | 2017-07-27 | 2019-02-05 | 宝沃汽车（中国）有限公司 | Crash protection circuit, battery pack and vehicle for battery pack |
| CN110962604A (en) * | 2019-04-30 | 2020-04-07 | 宁德时代新能源科技股份有限公司 | Control module, battery management system, circuit detection method and control method |
| CN111452618A (en) * | 2020-04-27 | 2020-07-28 | 蜂巢能源科技有限公司 | Battery pack alarm device, battery pack assembly and vehicle |
-
2017
- 2017-07-27 CN CN201720926497.9U patent/CN207059787U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305042A (en) * | 2017-07-27 | 2019-02-05 | 宝沃汽车（中国）有限公司 | Crash protection circuit, battery pack and vehicle for battery pack |
| CN110962604A (en) * | 2019-04-30 | 2020-04-07 | 宁德时代新能源科技股份有限公司 | Control module, battery management system, circuit detection method and control method |
| CN110962604B (en) * | 2019-04-30 | 2021-05-28 | 宁德时代新能源科技股份有限公司 | Control module, battery management system, circuit detection method and control method |
| CN111452618A (en) * | 2020-04-27 | 2020-07-28 | 蜂巢能源科技有限公司 | Battery pack alarm device, battery pack assembly and vehicle |
| CN111452618B (en) * | 2020-04-27 | 2022-10-25 | 蜂巢能源科技有限公司 | Battery pack alarm device, battery pack assembly and vehicle |
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Denomination of utility model: Collision protection circuit for battery pack, battery pack and vehicle Effective date of registration: 20211213 Granted publication date: 20180302 Pledgee: BEIJING AUTOMOTIVE GROUP Co.,Ltd. Pledgor: Borgward Automotive (China) Co., Ltd. Registration number: Y2021990001167 |
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Date of cancellation: 20231201 Granted publication date: 20180302 Pledgee: BEIJING AUTOMOTIVE GROUP Co.,Ltd. Pledgor: Beijing baowo Automobile Co.,Ltd.|Borgward Automotive (China) Co., Ltd. Registration number: Y2021990001167 |
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