CN209029464U - Battery component, power battery and electric car - Google Patents
Battery component, power battery and electric car Download PDFInfo
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- CN209029464U CN209029464U CN201821872061.7U CN201821872061U CN209029464U CN 209029464 U CN209029464 U CN 209029464U CN 201821872061 U CN201821872061 U CN 201821872061U CN 209029464 U CN209029464 U CN 209029464U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
This disclosure relates to a kind of battery component, power battery and electric car, the battery component includes current interrupt device, first single battery, second comonomer battery, relay, first conduct piece and the second conduct piece, first pole of the first single battery is connected with the current interrupt device, first conduct piece connects the current interrupt device and the relay, second conduct piece connects the second pole and the relay of the first single battery, second pole of the first single battery is connected by the relay with the second comonomer battery.When the first battery is abnormal, which can disconnect the electrical connection between first single battery and second comonomer battery in time, play the role of the effective protection to first single battery and battery component.
Description
Technical field
This disclosure relates to field of batteries, and in particular, to a kind of battery component, the power battery including the battery component and
Electric car including the power battery.
Background technique
It is provided with current interrupt device on usual battery, in extreme circumstances (such as battery short circuit or overcharge), electric current
Interruption means starts by battery itself, the energy-storage system circuit of battery is disconnected, to play the protective effect to battery.Specifically
Ground, when the exception such as overcharging occurs for battery, inside battery material, which reacts, generates bulk gas, and pushing away with the time
It moving, inside battery gas, which increases, causes its internal pressure to increase, and pressure increase drives the rotating sheet in current interrupt device to overturn,
So that rotating sheet is contacted with the external electrode conductive part on battery, make the circuit conducting where external electrode conductive part, at this time electric current
External short circuit occurs for battery where interruption means, using electrically connecting between the high current fusing battery in short-circuit loop, from
And the series loop of the battery in battery component is disconnected, play the role of the safeguard protection to battery component.
Since there are high voltages on battery component, when the electrical connection (such as connection sheet) between battery disconnects, it may appear that
High-voltage arc discharge may puncture the single battery case under connection sheet, cause short in single battery and explosion on fire occurs.
Utility model content
Purpose of this disclosure is to provide a kind of battery components, and when battery is abnormal, which can break in time
The link circuit between single battery is opened, the effective protection to battery component is played the role of.
To achieve the goals above, the disclosure provides a kind of battery component, comprising: current interrupt device, including metal-back
Body, rotating sheet and conductive part, the rotating sheet are arranged in the metal shell and by the inner spaces of the metal shell
It is separated into first chamber and second chamber, the rotating sheet and the metal shell are conductively connected, and the conductive part is insulated
On the metal shell；First single battery, the first pole of the first single battery and the metal shell conduction connect
It connects, the inner space of the first single battery and the first chamber gas connection；Second comonomer battery；Relay, including
Control power supply, coil, contact switch and the first Zapping circuit, the first end of first Zapping circuit and the control power supply
First extremely be connected, the second end of first Zapping circuit is connected with the first end of the coil, the second end of the coil and
The second of the control power supply is extremely connected, and one end of the contact switch is connected with the second pole of the first single battery,
The other end of the contact switch is connected with the first pole of the second comonomer battery, with connect the first single battery and
The second comonomer battery；First conduct piece connects the first end of the conductive part and first Zapping circuit；Second is conductive
Part connects the second pole of the first single battery and the second end of first Zapping circuit；The rotating sheet can be
Overturning with the conductive part under the differential pressure action of the first chamber and the second chamber to contact, to make first list
It is first pole of body battery, the metal shell, the rotating sheet, the conductive part, first conduct piece, described first molten
Deenergizing, second conduct piece, the first single battery the second pole form current loop, to fuse described first
Zapping circuit, so that the contact switch disconnects.
Optionally, the relay further includes the second Zapping circuit, the first end and the control of second Zapping circuit
The second of power supply processed is extremely connected, and the second end of second Zapping circuit is connected with the second end of the coil, and described second is molten
The overflow section product of deenergizing is greater than the overflow section product of first Zapping circuit, the overflow section of second Zapping circuit
Product is greater than the overflow section product of first Zapping circuit.
Optionally, the battery component further includes gas-guide tube, it is described it is for air guide tube in connect the first single battery and
The current interrupt device, the gas inside the first single battery enter the first chamber by the gas-guide tube.
Optionally, venthole is offered on the first pole of the first single battery, one end of the gas-guide tube is embedded
It is connected in the first pole of the first single battery and with the venthole, the gas inside first single battery passes through
The venthole and the gas-guide tube enter the first chamber.
Optionally, the gas-guide tube is metal airway, the first pole of the metal shell and the first single battery
Column is conductively connected by the gas-guide tube.
Optionally, the gas-guide tube is flexible insulated hose, and the battery component further includes flexible conductive element, the metal shell
It is conductively connected with the first pole of the first single battery by the flexible conductive element.
Optionally, the metal shell includes roof, bottom wall and the side wall being connected between the roof and the bottom wall,
The roof is connected with the lateral wall insulation, and the conductive part is mounted on the roof, the rotating sheet and the bottom wall it
Between form the first chamber, the second chamber is formed between the rotating sheet and the roof.
Optionally, it is offered on the metal shell one or more for being connected to the second chamber and the metal-back
The gas port in the outside of body.
Compared to the prior art in fusing first single battery and second comonomer battery between connection sheet disconnection mode, this
For the open battery component provided by being arranged relay between above-mentioned two monomer, what when short circuit current fused is in relay
First Zapping circuit in portion, the high-voltage arc that when fusing generates will not be applied in first single battery, therefore will not cause
It is short and explosion on fire occurs in one single battery, play the role of the effective protection to battery component.
According to another aspect of the present disclosure, a kind of battery component is provided, comprising: current interrupt device, including metal shell,
Rotating sheet and conductive part, the rotating sheet are arranged in the metal shell and separate the inner space of the metal shell
At first chamber and second chamber, the rotating sheet and the metal shell are conductively connected, and the conductive part is insulated in institute
It states on metal shell；First single battery, the first pole of the first single battery and metal shell insulation connect, institute
State first single battery inner space and the first chamber gas connection；Second comonomer battery；Relay, including control electricity
Source, coil, contact switch and the first Zapping circuit, the first pole of the first end of first Zapping circuit and the control power supply
It is connected, the second end of first Zapping circuit is connected with the first end of the coil, the second end of the coil and the control
The second of power supply processed is extremely connected, and one end of the contact switch is connected with the second pole of the first single battery, the touching
The other end of point switch is connected with the first pole of the second comonomer battery, with the first single battery and described the of connecting
Two single batteries；First conduct piece connects the first end of the metal shell and first Zapping circuit；Second conduct piece,
Connect the first pole of the second comonomer battery and the second end of first Zapping circuit；Third conduct piece, described in connection
Second pole of conductive part and the second comonomer battery；The rotating sheet can be in the first chamber and the second chamber
Differential pressure action under overturning to be contacted with the conductive part, to make the first pole of the second comonomer battery, described second
Conduct piece, first Zapping circuit, first conduct piece, the metal shell, the rotating sheet, the conductive part, institute
The second pole formation current loop of third conduct piece, the second comonomer battery is stated, thus first Zapping circuit that fuses,
So that the contact switch disconnects.
Optionally, the relay further includes the second Zapping circuit, the first end and the control of second Zapping circuit
The second of power supply processed is extremely connected, and the second end of second Zapping circuit is connected with the second end of the coil, and described second is molten
The overflow section product of deenergizing is greater than the overflow section product of first Zapping circuit.
Optionally, the battery component further includes insulation gas-guide tube, and the insulation is for air guide tube single in connecting described first
Body battery and the current interrupt device, the gas inside the first single battery pass through described in insulation gas-guide tube entrance
First chamber.
Optionally, venthole is offered on the pole of the first single battery, one end of the insulation gas-guide tube is embedded
It is connected in the first pole of the first single battery and with the venthole, the gas inside the first single battery
Enter the first chamber by the venthole and the insulation gas-guide tube.
Optionally, the metal shell includes roof, bottom wall and the side wall being connected between the roof and the bottom wall,
The roof is connected with the lateral wall insulation, and the conductive part is mounted on the roof, the rotating sheet and the bottom wall it
Between form the first chamber, the second chamber is formed between the rotating sheet and the roof.
Optionally, it is offered on the metal shell one or more for being connected to the second chamber and the metal-back
The gas port in the outside of body.
In the battery component, it will thus provide gas single battery (first single battery) and the single battery that is short-circuited
(second comonomer battery) separates, and so as to prevent the further deterioration of first single battery, improves entire battery component
Service life and security performance.
According to the another further aspect of the disclosure, a kind of power battery is provided, the power battery includes above-mentioned battery pack
Part.
According to the another further aspect of the disclosure, a kind of electric car is provided, which is provided with above-mentioned power electric
Pond.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
A kind of structural schematic diagram of the battery component of embodiment of Fig. 1 disclosure；
The structural schematic diagram of the battery component of Fig. 2 disclosure another embodiment, wherein first single battery can be soft
Packet battery；
Fig. 3 is the structural schematic diagram of the battery component of disclosure another embodiment.
Description of symbols
1 metal shell, 11 gas port
12 roof, 13 side wall
14 bottom wall, 2 rotating sheet
3 conductive part, 4 relay
41 control 42 coils of power supply
43 contact switch, 44 first Zapping circuit
45 second Zapping circuit, 51 first conduct piece
52 second conduct piece, 53 third conduct piece
6 gas-guide tube, 71 first chamber
72 second chamber, 8 flexible conductive element
9 insulation gas-guide tubes
100 first single batteries
First pole of 101 first single batteries
Second pole of 102 first single batteries
103 ventholes
200 second comonomer batteries
First pole of 201 second comonomer batteries
Second pole of 202 second comonomer batteries
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
In the disclosure, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right " be usually with
It is defined on the basis of the page of respective drawings, " inside and outside " refers to the inner and outer of corresponding component profile.
As depicted in figs. 1 and 2, present disclose provides a kind of battery component, which includes current interrupt device,
One single battery 100, second comonomer battery 200, relay 4, the first conduct piece 51 and the second conduct piece 52.Wherein, in electric current
Disconnected device includes metal shell 1, rotating sheet 2 and conductive part 3, and rotating sheet 2 is arranged in metal shell 1 and by metal shell 1
Inner space be separated into first chamber 71 and second chamber 72, rotating sheet 2 and metal shell 1 are conductively connected, and conductive part 3 insulate
It is mounted on metal shell 1.In normal condition, rotating sheet 2 is not contacted with conductive part 3.First pole of first single battery 100
101 are conductively connected with metal shell 1, the inner space of first single battery 100 and 71 gas connection of first chamber, that is,
It says, the gas in first single battery 100 is able to enter in first chamber 71.
As depicted in figs. 1 and 2, relay 4 includes control power supply 41, coil 42, contact switch 43 and the first Zapping circuit
44, the first end of the first Zapping circuit 44 is extremely connected with the first of control power supply 41, the second end and line of the first Zapping circuit 44
The first end of circle 42 is connected, and the second end of coil 42 is extremely connected with the second of control power supply 41, one end of contact switch 43 and the
Second pole 102 of one single battery 100 is connected, the other end of contact switch 43 and the first pole of second comonomer battery 200
201 are connected, with first single battery 100 and the second comonomer battery 200 of connecting.First conduct piece 51 connects conductive part 3 and first
The first end of Zapping circuit 44, the second conduct piece 52 connect the second pole 102 and the first Zapping circuit of first single battery 100
44 second end.
In the above-mentioned battery component that the disclosure provides, when normal work, contact switch 43 be in closed state, and first singly
Body battery 100 and second comonomer battery 200 are connected in the circuit of battery component, first single battery 100 and second comonomer electricity
Pond 200 electric current is conducted by relay 4.
When the exception such as overcharging occurs for battery component, gas is generated inside first single battery 100, and with air pressure
Increase, rotating sheet 2 can overturn to contact with conductive part 3 under the differential pressure action of first chamber 71 and second chamber 72, make
The first pole 101 of first single battery 100 is obtained by metal shell 1, overturning 2 and 3 electrical conductive communication of conductive part, to make first
The first pole 101, metal shell 1, rotating sheet 2, conductive part 3, the first conduct piece 51, the first Zapping circuit of single battery 100
44, the second conduct piece 52, first single battery 100 the second pole 102 formed current loop, that is, formed high current short circuit return
Road, thus the first Zapping circuit 44 of fusing, break contact switch 43.After contact switch 43 disconnects, first single battery 100 and the
Series loop where two single battery 200 disconnects therewith, while preventing the abnormal deterioration of first single battery 100, also
The further deterioration that can be avoided other monomers battery exception in the series loop, play to entire battery component in time, can
The protective effect leaned on.
Moreover, the battery component that the disclosure provides is between above-mentioned two monomer by being arranged relay 4, when short circuit current
Fusing is the first Zapping circuit 44 relay 4 inside, and it is electric that the high-voltage arc that when fusing generates will not be applied to the first monomer
On pond 100, therefore it will not cause short in first single battery 100 and explosion on fire occurs, play to the effective of battery component
Protective effect.
Further, as depicted in figs. 1 and 2, relay 4 further includes the second Zapping circuit 45, the second Zapping circuit 45
First end is extremely connected with the second of control power supply 41, and the second end of the second Zapping circuit 45 is connected with the second end of coil 42, the
The overflow section product of two Zapping circuits 45 is greater than the overflow section product of the first Zapping circuit 44, that is, the mistake of the second Zapping circuit 45
Stream ability is greater than the conveyance capacity of the first Zapping circuit 44.
In general, after contact switch 43 disconnects, 100 internal abnormality of first single battery is (such as when the first Zapping circuit 44 disconnects
Overcharge) it is terminated, temperature can gradually decrease, and air pressure becomes smaller, and rotating sheet 2 is separated with conductive part 3, where first single battery 100
Short-circuit loop disconnects.
If when the first Zapping circuit 44 disconnects, after contact switch 43 disconnects, the air pressure of inside battery is still very high, overturning
Piece 2 is still contacted with conductive part 3.At this point, as depicted in figs. 1 and 2, the first pole 101, the metal shell of first single battery 100
1, rotating sheet 2, conductive part 3, the first conduct piece 51, the second Zapping circuit 45, second conduct piece 52, first single battery 100
Second pole 102 forms current loop, i.e. first single battery 100 itself forms discharge loop, and the second Zapping circuit 45 is broken
It opens, disconnects the discharge loop of first single battery 100, avoid the abnormal of first single battery 100 from continuing, play to the first monomer
The safeguard protection of battery 100 and battery component.In addition, in the discharge process of above-mentioned first single battery 100, even if second is molten
Deenergizing 45 does not fuse in time, and since electric current is larger, first single battery 100 quickly releases electricity, and single battery it
Between electrical connection disconnected, therefore, security risk is also not present in battery component.
Further, as shown in Figure 1, battery component further includes gas-guide tube 6, gas-guide tube 6 is for connecting first single battery
100 and current interrupt device, the gas inside first single battery 100 enters first chamber 71 by gas-guide tube 6, that is,
It says, is removed current interrupt device inside single battery or on battery cover board by setting gas-guide tube 6.Circuit interrupting device
It is outer to move the flexibility for not only increasing current interrupt device location arrangements, and by the way that current interrupt device and the first monomer is electric
Pond 100 is spaced a distance, may be to damage caused by first single battery 100 when can be avoided current interrupt device work
It is bad.For example, 2 place loop current of rotating sheet is usually very big in the case where battery component external short circuit, it is easy to cause rotating sheet
2 melt, and molten metal liquid stream to battery cover board or inside battery may cause short in battery, it is easy to cause battery
There is very big security risk in fire or explosion.
Wherein, for the ease of guiding the gas in first single battery 100 into first chamber 71, as shown in Figure 1, the
Venthole 103 is offered on first pole 101 of one single battery 100, one end of gas-guide tube 6 is embedded in first single battery
It is connected in 100 the first pole 101 and with venthole 103, the gas inside first single battery 100 passes through venthole 103
Enter first chamber 71 with gas-guide tube 6.
Venthole can be clogged by rubber stopper during first single battery 100 produces about venthole 103
103, when first single battery 100 is assembled into battery component, open rubber stopper, by gas-guide tube 6 be inserted into venthole 103 and
Gas-guide tube 6 is welded on the first pole 101 of first single battery 100, alternatively, can be the first of first single battery 100
Valve is set on pole 101, and during production, which is closed, and is assembled into battery component completing first single battery 100
Afterwards, it is then turned on the valve, so that the inside of first single battery 100 is connected to first chamber 71.
Wherein, gas-guide tube 6 both can be metal airway, or insulation gas-guide tube.In one embodiment, such as
Shown in Fig. 1, gas-guide tube 6 is metal airway, and metal shell 1 and the first pole 101 of first single battery 100 both pass through air guide
Pipe 6 is conductively connected, and also by 6 air guide of gas-guide tube, gas-guide tube 6 plays a dual-purpose effect.
In addition, when gas-guide tube 6 is flexible insulated hose, battery component also wraps as shown in Fig. 2, gas-guide tube 6 can be flexible insulated hose
Flexible conductive element 8 is included, metal shell 1 and the first pole 101 of first single battery 100 are conductively connected by flexible conductive element 8.
In the present embodiment, first single battery 100 can be soft-package battery, and gas-guide tube 6 is served only for air guide, and flexible conductive element 8 is electrically connected
Connect metal shell 1 and first single battery 100.This application of structural design can play preferable electric current on soft-package battery
Interruption effect, which is also avoided that, damages soft-package battery.
In general, soft-package battery shell is aluminum plastic film, from the inside to the outside, aluminum plastic film mainly includes polypropylene layer, aluminium foil layer and Buddhist nun
Imperial layer, the thickness of above-mentioned trilaminate material all only have tens microns so that the structural strength of entire shell and resistance to temperature capability compared with
It is low.It if being arranged the current interrupt device of existing hard packed battery on soft-package battery, certainly will need to use welding procedure, and weld
The high temperature connect is easy to aluminum plastic film to burn, and destroys shell mechanism, so current interruptions dress is usually not arranged on soft-package battery
It sets.Due to being not provided with current interrupt device, soft-package battery is once occur the exception such as thermal runaway, and side aberrant continuation deteriorates, very
Easily cause fire or explosion.
And in the present embodiment, gas-guide tube 6 only needs air guide, does not have to conduction, therefore such as polypropylene soft pipe, rubber can be used
The flexible preferable flexible insulated hose such as glue hose, avoids piercing through shell.And flexible conductive element 8 does not have to air guide, so allowing it
It is processed into the lesser laminated structure of thickness, compared to the metallic conduction pipe of tubular structure, the flexible conductive element of laminated structure
(such as aluminium flake, copper sheet) is not easy to pierce through the shell of soft-package battery.Further more, since gas-guide tube 6 and conduct piece are flexible piece, it can
Gas-guide tube 6 and flexible conductive element 8 are bonded between metal shell 1 and first single battery 100 using structure glue, to avoid
Welding procedure damages the shell of soft-package battery.
Through the above technical solutions, current interrupt device can be arranged, on soft-package battery to interrupt over-charging of battery etc. in time
It is abnormal, it promotes soft-package battery and soft-package battery component obtains safety.
In the disclosure, metal shell 1 is formed as any suitable structure and shape.In one embodiment, such as
Shown in Fig. 1 and Fig. 2, metal shell 1 includes roof 12, bottom wall 14 and the side wall 13 being connected between roof 12 and bottom wall 14.Its
In, roof 12 is connected with the insulation of side wall 13, optionally, as shown in Figure 1, roof 12 can be mounted on side wall 13 by insulating ceramics ring
Upper end, conductive part 3 is mounted on roof 12, and the surrounding of rotating sheet 2 is connected with the upper end of side wall 13 or inner wall, 2 He of rotating sheet
First chamber 71 is formed between bottom wall 14, and second chamber 72 is formed between rotating sheet 2 and roof 12.The structure of the metal shell 1
Simply, and it can guarantee that the gas of first single battery 100 acts on rotating sheet 2.In other embodiments, roof 12 can
It is directly installed on side wall 13, conductive part 3 is mounted on roof 12 for example, by insulating ceramics installation set.
Further, as depicted in figs. 1 and 2, it is offered on metal shell 1 one or more for being connected to second chamber 72
With the gas port 11 in the outside of metal shell 1.In this way, due to the air communication of second chamber 72 and the outside of metal shell 1, when
When gas in first single battery 100 acts on rotating sheet 2, convenient for rotating sheet 2, overturning is conductive to contact with conductive part 3 in time
Connection.
As shown in figure 3, the battery component includes current interrupt device, first present disclose provides another battery component
Single battery 100, second comonomer battery 200, relay 4, the first conduct piece 51, the second conduct piece 52 and third conduct piece 53.
Wherein, current interrupt device, including metal shell 1, rotating sheet 2 and conductive part 3, rotating sheet 2 be arranged in metal shell 1 and
The inner space of metal shell 1 is separated into first chamber 71 and second chamber 72, rotating sheet 2 and metal shell 1 are conductively connected,
Conductive part 3 is insulated on metal shell 1, and in normal condition, rotating sheet 2 is not contacted with conductive part 3.
First pole 101 of first single battery 100 is connected with the insulation of metal shell 1, the inside of first single battery 100
Space and 71 gas connection of first chamber, that is to say, that first single battery 100 is not conductively connected with metal shell 1, is only to use
Air pressure is provided in the first chamber 71 into metal shell 1.
As shown in figure 3, relay 4 includes controlling power supply 41, coil 42, contact switch 43 and the first Zapping circuit 44, the
The first end of one Zapping circuit 44 is extremely connected with the first of control power supply 41, second end and the coil 42 of the first Zapping circuit 44
First end is connected, and the second end of coil 42 is extremely connected with the second of control power supply 41, one end of contact switch 43 and the first monomer
Second pole 102 of battery 100 is connected, 201 phase of the first pole of the other end and second comonomer battery 200 of contact switch 43
Even, with first single battery 100 and the second comonomer battery 200 of connecting.
As shown in figure 3, the first conduct piece 51 is used to connect the first end of metal shell 1 and the first Zapping circuit 44, second
Conduct piece 52 is used to connect the first pole 201 of second comonomer battery 200 and the second end of the first Zapping circuit 44, and third is conductive
Part 53 is used to connect the second pole 202 of conductive part 3 and second comonomer battery 200.
In the battery component that the disclosure provides, in normal work, first single battery 100 and second comonomer battery
200 are connected in the current loop of battery component, and first single battery 100 and second comonomer battery 200 are conducted by relay 4
Electric current.
When the exception such as overcharging occurs for battery component, under the gas pressure of 100 internal gas of first single battery,
Rotating sheet 2 can be overturn under the differential pressure action of first chamber 71 and second chamber 72 to contact with conductive part 3, so that second is single
First pole 201 of body battery 200, the first Zapping circuit 44, the first conduct piece 51, metal shell 1, turns over second conduct piece 52
Rotor 2, conductive part 3, third conduct piece 53, second comonomer battery 200 the second pole 202 formed current loop, to fuse
First Zapping circuit 44, so that contact switch 43 disconnects.After relay 4 disconnects, first single battery 100 and second comonomer battery
Series loop where 200 is disconnected with the disconnection of relay 4, so that the exception of first single battery 100 is terminated, and
And can be avoided the further deterioration of other monomers battery exception in the series loop, play it is to entire battery component and
When, reliable protective effect.
Research shows that being turned over inside single battery to the offer of rotating sheet 2 when single battery is provided with above-mentioned current interrupt device
When turning gas, since rotating sheet 2 may be reversed, mean that the shell of the single battery can deform and the position deformed is relatively fixed,
So that the chemical reaction inside the single battery more levels off to the movement of the direction of casing deformation, i.e., it is mobile to the direction for producing gas,
Relative to other inside not for the single battery that is connected to of overturning, the single battery deterioration degree it is even more serious.When same
When single battery provides gas and participates in short circuit again, damaging caused by the single battery can be further increased.Therefore, as schemed
Shown in 3, in the present embodiment, it will thus provide gas single battery (first single battery 100) and the single battery that is short-circuited
(second comonomer battery 200) separates, and so as to prevent the further deterioration of first single battery, improves entire battery pack
The service life and security performance of part.
Further, as shown in figure 3, relay 4 further includes the second Zapping circuit 45, the first end of the second Zapping circuit 45
Extremely it is connected with the second of control power supply 41, the second end of the second Zapping circuit 45 is connected with the second end of coil 42, the second fusing
The overflow section product of circuit 45 is greater than the overflow section product of the first Zapping circuit 44, that is, the conveyance capacity of the second Zapping circuit 45
Greater than the conveyance capacity of the first Zapping circuit 44.
If when the first Zapping circuit 44 disconnects, after contact switch 43 disconnects, the air pressure of inside battery is still very high, overturning
Piece 2 is still contacted with conductive part 3.At this point, as shown in figure 3, the first pole 201 of second comonomer battery 200, the second conduct piece 52,
Second Zapping circuit 45, the first conduct piece 51, metal shell 1, rotating sheet 2, conductive part 3, third conduct piece 53, second comonomer electricity
Second pole 202 in pond 200 forms current loop, i.e. second comonomer battery 200 itself forms discharge loop, by the second fusing electricity
Road 45 disconnects, and disconnects the discharge loop of second comonomer battery 200, and the abnormal of second comonomer battery 200 is avoided to continue, and plays to the
The safeguard protection of two single batteries 200 and battery component.In the discharge process of second comonomer battery 200, even if the second fusing
Circuit 45 does not fuse in time, and since electric current is larger, second comonomer battery 200 quickly releases electricity, and between single battery
Electrical connection disconnected, therefore security risk is also not present in battery component.
Further, as shown in figure 3, battery component further includes insulation gas-guide tube 9, insulation gas-guide tube 9 is for connecting first
Single battery 100 and current interrupt device, the gas inside first single battery 100 enter the first chamber by insulation gas-guide tube 9
Room 71.By being discussed above it is found that connecting first single battery 100 and current interrupt device by setting insulation gas-guide tube 9, no
The flexibility of the location arrangements of metal cavity 1 is increased only, it may be to the first monomer when being also avoided that circuit interrupting device work
It is damaged caused by battery 100.
Wherein, for the ease of guiding the gas in first single battery 100 into first chamber 71, as shown in figure 3, the
Venthole 103 is offered on the pole of one single battery 100, one end of insulation gas-guide tube 9 is embedded in first single battery 100
It is connected in first pole 101 and with venthole 103, the gas inside first single battery 100 passes through venthole 103 and insulation
Gas-guide tube 9 enters first chamber 71.
In the disclosure, metal shell 1 is formed as any suitable structure and shape.In one embodiment, such as
Shown in Fig. 3, metal shell 1 includes roof 12, bottom wall 14 and the side wall 13 being connected between roof 12 and bottom wall 14.Wherein roof
12 can insulate with side wall 13 is connected, optionally, as shown in Figure 1, roof 12 can be mounted on the upper of side wall 13 by insulating ceramics ring
End, conductive part 3 is mounted on roof 12, forms first chamber 71 between rotating sheet 2 and bottom wall 14, rotating sheet 2 and roof 12 it
Between formed second chamber 72.
In other embodiments, roof 12 can be directly mounted on side wall 13, and conductive part 3 is pacified for example, by insulating ceramics
Encapsulation is mounted on roof 12.
Further, as shown in figure 3, being offered on metal shell 1 one or more for being connected to second chamber 72 and gold
Belong to the gas port 11 in the outside of shell 1 to contact and conductive communication in order to the overturning in time of rotating sheet 2 with conductive part 3.
It should be noted that after removing current interrupt device from battery, in order to avoid current interrupt device influence
The normal work of battery component, can be in metal shell 1, the first conduct piece 51, the second conduct piece 52, third conduct piece 53 and flexibility
The outer surface of conduct piece 8 coats one layer of insulation material layer.
According to the another further aspect of the disclosure, a kind of power battery is provided, which includes above-mentioned battery component.
According to the another further aspect of the disclosure, a kind of electric car is provided, which is provided with above-mentioned power electric
Pond.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, 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 solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (16)
1. a kind of battery component characterized by comprising
Current interrupt device, including metal shell (1), rotating sheet (2) and conductive part (3), the rotating sheet (2) are arranged described
It is separated into first chamber (71) and second chamber (72) in metal shell (1) and by the inner space of the metal shell (1),
The rotating sheet (2) and the metal shell (1) are conductively connected, and the conductive part (3) is insulated in the metal shell (1)
On；
First single battery (100), the first pole (101) and the metal shell (1) of the first single battery (100) are led
Electrical connection, the inner space of the first single battery (100) and the first chamber (71) gas connection；
Second comonomer battery (200)；
Relay (4), including control power supply (41), coil (42), contact switch (43) and the first Zapping circuit (44), described the
The first end of one Zapping circuit (44) first is extremely connected with control power supply (41), and the of first Zapping circuit (44)
Two ends are connected with the first end of the coil (42), the second pole of the second end of the coil (42) and control power supply (41)
It is connected, one end of the contact switch (43) is connected with the second pole (102) of the first single battery (100), the touching
The other end of point switch (43) is connected with the first pole (201) of the second comonomer battery (200), with first list of connecting
Body battery (100) and the second comonomer battery (200)；
First conduct piece (51) connects the first end of the conductive part (3) and first Zapping circuit (44)；
Second conduct piece (52) connects the second pole (102) and first Zapping circuit of the first single battery (100)
(44) second end；
The rotating sheet (2) can be overturn under the differential pressure action of the first chamber (71) and the second chamber (72) with
The conductive part (3) contact, thus make the first pole (101) of the first single battery (100), the metal shell (1),
The rotating sheet (2), the conductive part (3), first conduct piece (51), first Zapping circuit (44), described second
Conduct piece (52), the first single battery (100) the second pole (102) form current loop, to fuse described first
Zapping circuit (44), so that the contact switch (43) disconnects.
2. battery component according to claim 1, which is characterized in that the relay (4) further includes the second Zapping circuit
(45), the first end of second Zapping circuit (45) is extremely connected with the second of control power supply (41), second fusing
The second end of circuit (45) is connected with the second end of the coil (42), and the overflow section product of second Zapping circuit (45) is big
In the overflow section product of first Zapping circuit (44).
3. battery component according to claim 1 or 2, which is characterized in that the battery component further includes gas-guide tube (6),
The gas-guide tube (6) is for connecting the first single battery (100) and the current interrupt device, the first single battery
(100) internal gas enters the first chamber (71) by the gas-guide tube (6).
4. battery component according to claim 3, which is characterized in that the first pole of the first single battery (100)
(101) it is offered on venthole (103), one end of the gas-guide tube (6) is embedded the first of the first single battery (100)
It is connected in pole (101) and with the venthole (103), the internal gas of first single battery (100) passes through the ventilation
Hole (103) and the gas-guide tube (6) enter the first chamber (71).
5. battery component according to claim 3, which is characterized in that the gas-guide tube (6) is metal airway, the gold
The first pole (101) for belonging to shell (1) and the first single battery (100) is conductively connected by the gas-guide tube (6).
6. battery component according to claim 3, which is characterized in that the gas-guide tube (6) is flexible insulated hose, the battery
Component further includes flexible conductive element (8), the first pole (101) of the metal shell (1) and the first single battery (100)
It is conductively connected by the flexible conductive element (8).
7. battery component according to claim 3, which is characterized in that the metal shell (1) includes roof (12), bottom wall
(14) and the side wall (13) that is connected between the roof (12) and the bottom wall (14), the roof (12) and the side wall
(13) insulation is connected, and the conductive part (3) is mounted on the roof (12), the rotating sheet (2) and the bottom wall (14) it
Between formed the first chamber (71), the second chamber (72) are formed between the rotating sheet (2) and the roof (12).
8. battery component according to claim 1, which is characterized in that offer one or more on the metal shell (1)
The gas port (11) in a outside for being used to be connected to the second chamber (72) and the metal shell (1).
9. a kind of battery component characterized by comprising
Current interrupt device, including metal shell (1), rotating sheet (2) and conductive part (3), the rotating sheet (2) are arranged described
It is separated into first chamber (71) and second chamber (72) in metal shell (1) and by the inner space of the metal shell (1),
The rotating sheet (2) and the metal shell (1) are conductively connected, and the conductive part (3) is insulated in the metal shell (1)
On；
First single battery (100), the first pole (101) of the first single battery (100) and the metal shell (1) are exhausted
Edge connection, the inner space of the first single battery (100) and the first chamber (71) gas connection；
Second comonomer battery (200)；
Relay (4), including control power supply (41), coil (42), contact switch (43) and the first Zapping circuit (44), described the
The first end of one Zapping circuit (44) first is extremely connected with control power supply (41), and the of first Zapping circuit (44)
Two ends are connected with the first end of the coil (42), the second pole of the second end of the coil (42) and control power supply (41)
It is connected, one end of the contact switch (43) is connected with the second pole (102) of the first single battery (100), the touching
The other end of point switch (43) is connected with the first pole (201) of the second comonomer battery (200), with first list of connecting
Body battery (100) and the second comonomer battery (200)；
First conduct piece (51) connects the first end of the metal shell (1) and first Zapping circuit (44)；
Second conduct piece (52) connects the first pole (201) and first Zapping circuit of the second comonomer battery (200)
(44) second end；
Third conduct piece (53) connects the second pole (202) of the conductive part (3) and the second comonomer battery (200)；
The rotating sheet (2) can be overturn under the differential pressure action of the first chamber (71) and the second chamber (72) with
Conductive part (3) contact, to make the first pole (201) of the second comonomer battery (200), second conduct piece
(52), first Zapping circuit (44), first conduct piece (51), the metal shell (1), the rotating sheet (2), institute
State the second pole (202) formation electric current time of conductive part (3), the third conduct piece (53), the second comonomer battery (200)
Road, thus first Zapping circuit (44) that fuses, so that the contact switch (43) disconnects.
10. battery component according to claim 9, which is characterized in that the relay (4) further includes the second Zapping circuit
(45), the first end of second Zapping circuit (45) is extremely connected with the second of control power supply (41), second fusing
The second end of circuit (45) is connected with the second end of the coil (42), and the overflow section product of second Zapping circuit (45) is big
In the overflow section product of first Zapping circuit (44).
11. battery component according to claim 9 or 10, which is characterized in that the battery component further includes insulation air guide
It manages (9), the insulation gas-guide tube (9) is used to connect the first single battery (100) and the current interrupt device, and described the
The internal gas of one single battery (100) enters the first chamber (71) by the insulation gas-guide tube (9).
12. battery component according to claim 11, which is characterized in that on the pole of the first single battery (100)
It offers venthole (103), one end of insulation gas-guide tube (9) is embedded in the first pole of the first single battery (100)
It is connected in column (101) and with the venthole (103), the internal gas of the first single battery (100) passes through described logical
Stomata (103) and the insulation gas-guide tube (9) enter the first chamber (71).
13. battery component according to claim 11, which is characterized in that the metal shell (1) includes roof (12), bottom
Wall (14) and the side wall (13) being connected between the roof (12) and the bottom wall (14), the roof (12) and the side wall
(13) insulation is connected, and the conductive part (3) is mounted on the roof (12), the rotating sheet (2) and the bottom wall (14) it
Between formed the first chamber (71), the second chamber (72) are formed between the rotating sheet (2) and the roof (12).
14. battery component according to claim 9, which is characterized in that offer one or more on the metal shell (1)
The gas port (11) in a outside for being used to be connected to the second chamber (72) and the metal shell (1).
15. a kind of power battery, which is characterized in that the power battery includes battery described in any one of claim 1-14
Component.
16. a kind of electric car, which is characterized in that the electric car is provided with power battery described in claim 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821872061.7U CN209029464U (en) | 2018-11-13 | 2018-11-13 | Battery component, power battery and electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821872061.7U CN209029464U (en) | 2018-11-13 | 2018-11-13 | Battery component, power battery and electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209029464U true CN209029464U (en) | 2019-06-25 |
Family
ID=66910498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821872061.7U Active CN209029464U (en) | 2018-11-13 | 2018-11-13 | Battery component, power battery and electric car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209029464U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022183373A1 (en) * | 2021-03-02 | 2022-09-09 | 微宏动力系统（湖州）有限公司 | Battery connection structure, battery system, and electric vehicle |
| CN115230491A (en) * | 2021-04-02 | 2022-10-25 | 荣盛盟固利新能源科技有限公司 | Double-cabin power battery system and electric automobile |
-
2018
- 2018-11-13 CN CN201821872061.7U patent/CN209029464U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022183373A1 (en) * | 2021-03-02 | 2022-09-09 | 微宏动力系统（湖州）有限公司 | Battery connection structure, battery system, and electric vehicle |
| CN115230491A (en) * | 2021-04-02 | 2022-10-25 | 荣盛盟固利新能源科技有限公司 | Double-cabin power battery system and electric automobile |
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