CN110391363A - Battery cover board assembly, single battery, battery modules, power battery and electric car - Google Patents
Battery cover board assembly, single battery, battery modules, power battery and electric car Download PDFInfo
- Publication number
- CN110391363A CN110391363A CN201810365207.7A CN201810365207A CN110391363A CN 110391363 A CN110391363 A CN 110391363A CN 201810365207 A CN201810365207 A CN 201810365207A CN 110391363 A CN110391363 A CN 110391363A
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- Prior art keywords
- battery
- cover board
- pole
- indentation
- piece
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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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- Connection Of Batteries Or Terminals (AREA)
Abstract
This disclosure relates to a kind of battery cover board assembly, single battery, battery modules, power battery and electric car, the battery cover board assembly includes cover board, first pole, second pole, flip piece, indentation part and the first conduct piece, first pole is electrically connected to cover board, second pole includes spaced upper pole and lower pole, upper pole and lower pole, which insulate, is fixed on cover board and lower pole is electrically connected to battery core, indentation part is divided into first part and second part by indentation thereon, the first part of indentation part is electrically connected to upper pole by the first conduct piece, the second part of indentation part is electrically connected to lower pole, the lower surface of the first part of indentation part is provided with lantern ring 612, flip piece is arranged on the cover board, insulating part is provided on flip piece, the position of the insulating part and the position of lantern ring are corresponding, flip piece can be in battery It is overturn under portion's gas pressure and insulating part is pushed to move up with respect to lantern ring to break indentation, to disconnect being electrically connected between upper pole and lower pole.When battery is abnormal, which can disconnect being electrically connected for battery core and external circuit in time.
Description
Technical field
This disclosure relates to field of batteries, and in particular, to a kind of battery cover board assembly, the list including the battery cover board assembly
Body battery, the battery modules including the single battery, the power battery including the battery modules and the electricity including the power battery
Electrical automobile.
Background technique
Battery plays an important role as energy-storage units in all trades and professions, such as power battery is widely used in new-energy automobile
Equal fields, wherein can have in the battery pack of power battery by multiple single batteries it is in series or in parallel with each other at battery modules with
Realize the work of charge and discharge.Wherein, power battery usually passes through BMS(battery management system in charge and discharge process) monitoring electricity
The variation of pressure and electric current calculates charging state.If voltage sample goes wrong, it is possible to lead to over-charging of battery, especially for three
For first system, the danger for reaching a certain level and cells burst explosion but will occur such as is overcharged.
Existing technical solution: the monitoring to the voltage and current of battery passes through Current integrating method and open circuit voltage method meter
Battery capacity is calculated, and controls the charge and discharge management of battery with this.But there is also deficiencies, such as battery voltage sampling or electric current to adopt
Sample failure or software failure, leading to battery, charging cannot control for a long time, especially in the case where charging pile charges,
When charging pile and battery manager communication failures, overcharges and be unable to control, over-charging of battery to a certain extent, can cause battery blow-up very
It is extremely on fire from explosion.
In view of the above-mentioned problems, the breaking scheme and short-circuit protection scheme that use in the prior art are respectively as follows:
In breaking scheme, push overturning that will overturn and break connected indentation part by inside battery air pressure, thus
It realizes and disconnects battery core and pole to protect battery core.But there are drawbacks for this scheme, because entire circuit all can after battery core disconnects
It disconnects, battery pack and mould group stop working, and pure electrical automobile may run out of steam output moment, and there are security risks；In short circuit side
In case, flip piece is pushed to overturn by inside battery air pressure so that short circuit occurs for positive and negative anodes, so as to which the guarantor inside battery core is arranged in
The fusing of dangerous silk can be a large amount of so that disconnecting circuit protects battery core, but when the blown fuse inside battery core being arranged in the program
Heat production may make the generations such as electrolyte gasification or other exceptions, so as to cause the anomalous variation aggravation inside battery core.
Summary of the invention
Purpose of this disclosure is to provide a kind of battery cover board assemblies, when battery is abnormal, the battery cover board assembly energy
Being electrically connected for battery core and external circuit is enough disconnected, prevents the further thermal runaway of battery from causing bulging even on fire from explosion.
To achieve the goals above, the disclosure provides a kind of battery cover board assembly, including cover board, the first pole, the second pole
Column, flip piece, indentation part and the first conduct piece, first pole is electrically connected to the cover board, between second pole includes
Every the upper pole and lower pole of setting, the upper pole and the lower pole insulate and are fixed on the cover board, and it is described under
Pole is electrically connected to battery core, and the indentation part is divided into first part and second part by indentation thereon, the indentation part
First part is electrically connected to the upper pole by first conduct piece, and the second part of the indentation part is electrically connected to described
Lower pole, on the cover board, the flip piece is connect with the first part of the indentation part, the flip piece for the flip piece setting
It can be overturn under inside battery gas pressure to break the indentation, to disconnect being electrically connected between upper pole and lower pole
It connects；Deformation buffer area is provided on first conduct piece.
Optionally, the deformation buffer area is located at tie point and the first conduct piece and the upper pole of the first conduct piece and indentation part
Between the tie point of column.
Optionally, the deformation buffer area is formed as the strip slot structure extended along cover board width direction.
Optionally, the deformation buffer area is arc-shaped bending structure or is V-shaped bending structure.
Optionally, the cover board further includes the second conduct piece, and the upper pole insulation is fixed on second conduct piece,
Second conduct piece is connected electrically on the cover board, and the cover board is fixed in the lower pole insulation, and the of the indentation part
A part of and/or described first conduct piece can be moved under the driving of the flip piece to contact shape with second conduct piece
At electrical connection.
Optionally, second conduct piece is formed as being located at the lower pole, the flip piece, the indentation part and institute
State the protective cover on the first conduct piece.
Optionally, second conduct piece includes top plate and the sidewall paneling that extends downwardly from the ceiling edge, it is described on
The top plate is fixed in pole insulation, and the lower end of the sidewall paneling is fixed on the cover board.
Optionally, the first part and/or first conduct piece can be moved under the driving of the flip piece with
With the top plate contact.
Optionally, the battery cover board assembly further includes insulating part, the first part of the flip piece and the indentation part
It is connected by the insulating part.
Optionally, the upper end of the insulating part is electrically connected with the first part of indentation part, the lower end of the insulating part
It is fixedly connected on flip piece.
Optionally, groove structure is provided on the flip piece, the lower end of the insulating part cooperates in groove structure.
Optionally, first conduct piece is formed as laminated structure, and one end of first conduct piece is connected on described
Pole, the other end of first conduct piece are electrically connected to the first part of the indentation part, are formed on first conduct piece
There is the first protrusion for contacting with second conduct piece.
Optionally, described first raised (71) are formed as incline structure；The upper surface of described first raised (71) and cover board
(1) angle where between plane is 5-20 °.
Optionally, the insulating part and first protrusion are all formed as cylinder, first protrusion and the insulation
Part coaxial arrangement.
Optionally, the second protrusion is formed in the first part of the indentation part, second protrusion is led with described first
Electric part is connected.
Optionally, the upper pole and the lower pole coaxial arrangement.
Optionally, indentation is around the second protrusion setting；The indentation is formed as ellipse.
Through the above technical solutions, battery temperature increases, air pressure inside when the abnormal conditions such as overcharging occurs in battery
Increase, flip piece can be overturn under inside battery gas pressure to break indentation, to disconnect the electricity of battery core and external circuit
Connection prevents the further thermal runaway of battery appearance from causing on fire from explosion；When battery occurs abnormal, flip piece is in inside battery
Overturning drives the first conduct piece mobile under gas pressure, and deformation buffer area, and deformation buffer position are arranged on the first conduct piece
Between the first conduct piece and the tie point and the first conduct piece and the tie point of upper pole of indentation part, on the one hand can be reduced
The movement of one conduct piece causes the active force to upper pole, on the other hand, deformation buffer area is arranged on conduct piece, flip piece turns over
When turning, indentation is easier to be pulled off.
According to another aspect of the present disclosure, a kind of single battery, including above-mentioned battery cover board assembly and battery case are provided
Body and it is contained in the intracorporal battery core of the battery case, the lower pole and the battery core are electrically connected by interior leading-out piece.
According to another aspect of the present disclosure, a kind of battery modules are provided, which includes multiple above-mentioned single batteries
And connection sheet, one end of the connection sheet are electrically connected with first pole, the upper pole of the other end of connection sheet and the second pole
Column electrical connection.
According to another aspect of the present disclosure, a kind of power battery, including backpack body and setting are provided in the intracorporal battery of the packet
Mould group, the battery modules are above-mentioned battery modules.
According to another aspect of the present disclosure, a kind of electric car is provided, which includes above-mentioned power battery.
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:
Fig. 1 is the schematic cross-sectional view of battery cover board assembly in a kind of embodiment of the disclosure, wherein the first pole is not shown；
Fig. 2 is the schematic cross-sectional view of battery cover board assembly in a kind of embodiment of the disclosure.
Description of symbols
1 cover board, 11 through-hole
12 second conduct piece, 121 top plate
122 sidewall paneling, 13 insulating layer
The lower pole of pole 4 on 3
5 flip piece, 6 indentation part
611 second protrusion of first part of 61 indentation parts
612 lantern ring, 62 indentation
7 first conduct piece of second part of 63 indentation parts
71 first raised 72 deformation buffer areas
8 insulating parts 81 are fixedly connected with portion
82 boss structure, 9 first dead ring
10 second dead rings.
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 cover board assemblies, including cover board 1, the first pole 2, second
Pole, flip piece 5, indentation part 6 and the first conduct piece 7, the first pole 2 are electrically connected to cover board 1, and the second pole includes interval setting
Upper pole 3 and lower pole 4, upper pole 3 and lower pole 4 insulate and are fixed on cover board 1, and lower pole 4 is electrically connected to battery core,
Indentation part 6 is divided by indentation 62 thereon for first part 61 and second part 63, and the first part 61 of indentation part 6 passes through first
Conduct piece 7 is electrically connected to pole 3, and the second part 63 of indentation part 6 is electrically connected to lower pole 4, and flip piece 5 is arranged in cover board 1
It is upper and with inside battery gas connection, flip piece 5 connect with the first part 61 of indentation part 6, and flip piece 5 can be in inside battery
Overturning is under gas pressure to break indentation 62, to disconnect being electrically connected between upper pole 3 and lower pole 4；Described first is conductive
Deformation buffer area 72 is provided on part 7.
Wherein, the deformation buffer area 72 be located at the first conduct piece 7 and indentation part 6 tie point and the first conduct piece 7 with
Between the tie point of upper pole 3.
With further, deformation buffer area 72 is formed as the strip slot structure extended along 1 width direction of cover board；Further
Ground, deformation buffer area 72 are arc-shaped bending structure or are V-shaped bending structure；The generation type in deformation buffer area can pass through
Stretch the form for squeezing or directly stamping out slot again.
The battery cover board assembly provided according to the disclosure, wherein one of the first pole 2 and the second pole are anode
Column, another one are negative terminal, and optionally, the first pole 2 is positive terminal, and the second pole is negative terminal, cover board 1 and the first pole 2
Direct Conductivity is logical.Under normal circumstances, the first pole 2 and the second pole carry out outputting and inputting for electric current, to complete monomer electricity
The charge/discharge operation in pond, and under abnormality, such as when battery overcharges, the related components such as flip piece 5 are quickly rung
It should be exported with the electric current input for interrupting battery and electric current, play the role of open circuit protection.
The battery cover board assembly provided by the disclosure, when there are the abnormal conditions such as overcharging in battery, battery temperature
It increases, inside battery air pressure increases, and with the raising of air pressure, flip piece 5 can be overturn under inside battery gas pressure to draw
Disconnected indentation 62, to disconnect being electrically connected for battery core and external circuit, the further thermal runaway of resistance value battery causes on fire from explosion.
In one embodiment, as depicted in figs. 1 and 2, cover board 1 further includes the second conduct piece 12, and the upper insulation of pole 3 is solid
Due on second conduct piece 12, the second conduct piece 12 is connected electrically on cover board 1, and cover board 1 is fixed in the lower insulation of pole 4, is carved
The first part 61 of trace part 6 and/or first conduct piece 7 can be moved under the driving of the flip piece 5 with described
The contact of two conduct pieces 12 forms electrical contact and forms electrical connection.
When flip piece 5 acts under inside battery gas pressure breaks indentation 62, between upper pole 3 and lower pole 4
Electrical connection disconnects；When flip piece 5 turns up, drive the first part 61 of indentation part 6 and/or the first conduct piece 7 it is mobile with
The first part 61 and/or the first conduct piece 7 for making indentation part 6 contact with the second conduct piece, so that upper pole 3 and cover board 1
Conducting.In this way, upper pole 3 can be directly connected with the first pole 2 by cover board, so that the positive and negative anodes short circuit of single battery 100
Connection avoids the occurrence of the case where circuit of entire power battery disconnects suddenly, mentions to be used as a section lead in entire circuit
The safety of automobile is risen.The electricity of the first conduct piece 7 and the second conduction 12 can be better achieved in the presence in deformation buffer area 72
Contact, to prevent occurring abnormal the case where causing entire series circuit to disconnect suddenly because of single battery
Wherein, it in order to guarantee the reliability of battery work, avoids the occurrence of and collides with or external environment corrosion leads to indentation because unexpected
The case where impaired failures such as part 6, flip piece 5, occurs.In one embodiment, as depicted in figs. 1 and 2, the second conduct piece 12
It is formed as the protective cover being located on lower pole 4, flip piece 5, indentation part 6 and the first conduct piece 7, to play to above-mentioned zero
The reliable protection of part acts on, and especially plays the effective protection to indentation part 6.
Wherein, the second conduct piece 12 can have any suitable structure and shape.In one embodiment, such as Fig. 2 institute
Show, the second conduct piece 12 may include top plate 121 and the sidewall paneling 122 that extends downwardly from 121 edge of top plate, and upper pole 3 insulate embedding
It is located on top plate 121, the lower end of sidewall paneling 122 is fixed on cover board 1.Optionally, the second conduct piece 12 is formed as cylindrical shape,
In order to process and promoted the structure aesthetics of single battery.
In the present embodiment, the first part 61 of indentation part 6 and/or the first conduct piece 7 can be in the drives of flip piece 5
It moves up under dynamic to be contacted with top plate 121, so that upper pole 3 and 2 short circuit of the first pole are connected.
In the disclosure, in order to enable flip piece can effectively break the indentation on indentation part while realize disconnected when overturning
Road protection and short circuit conducting, it is preferable that the inner surface of the sidewall paneling 122 close to 5 side of flip piece is provided with insulating layer 13,
One end of the second part 63 of the indentation part 5 is connect with lower pole 4, and the other end of second part 63 is embedded in insulating layer 13
In；It can be the inner surface that sidewall paneling 122 is fixed on by way of bonding or being molded.
In the disclosure, as shown in Figure 1, battery cover board assembly further includes insulating part 8, the first of flip piece 5 and indentation part 6
Part 61 is connected by insulating part 8, to push the first part 61 of indentation part 6 to move up by insulating part 8, to break
Indentation 62 realizes open circuit protection and the short circuit connection of battery.
In the disclosure, the upper end of the insulating part 8 is electrically connected with the first part 61 of indentation part 6, the insulating part 8
Lower end be fixedly connected on flip piece 5；Further, groove structure is provided on flip piece 5, the lower end of insulating part is matched
Conjunction is fixed in groove structure.
According to another embodiment of the disclosure, the lower surface of the first part 61 of indentation part 6 is provided with lantern ring
612, insulating part 8 is fixedly connected on flip piece 5, and the position of the insulating part 8 is corresponding with the position of lantern ring 612, flip piece 5
It can be overturn under inside battery gas pressure and insulating part 8 is pushed to move up with respect to lantern ring 612 to break indentation 62, thus
Being electrically connected between pole 3 and lower pole 4 in disconnection.
Wherein, wherein lantern ring 612 preferably uses conduction collar, which can be fixed on by welding
The lower surface of the first part 61 of indentation part 6, the conduction collar can also be integrally formed with indentation part；In order to enable insulating part 8
Enough preferably to cooperate with lantern ring 612 to which the tilting force of flip piece to be transmitted on indentation part, the depth of lantern ring is preferably 2-
4mm。
According to an embodiment of the present disclosure, as shown in Figure 1, the insulating part 8 includes to be fixedly connected with flip piece
Be fixedly connected portion 81 with from this be fixedly connected portion (81) protrude cylindrical boss structure 82, the boss structure 82 being capable of phase
Lantern ring is moved up；The tilting force of flip piece can either be transmitted to well to break indentation on indentation part at this time, simultaneously also
The conductive contact between flip piece and indentation part be can be avoided to cause short circuit.
In order to which said effect is better achieved, 612 internal diameter of lantern ring is 2.2-4.7mm；The boss structure 82
Outer diameter be 2-4.5mm.
In the disclosure, in order to which insulating part is preferably fixed on flip piece, it is preferable that be provided on the flip piece 5
Groove structure, the lower end cooperation for being fixedly connected with portion (81) are fixed in groove structure.
In the disclosure, as shown in Figure 1, the first conduct piece 7 is formed as laminated structure, one end electricity of the first conduct piece 7
It is connected to pole 3, the other end of the first conduct piece 7 is electrically connected to the part 61 of indentation part 6, is formed on the first conduct piece 7
There is the first protrusion 71 for contacting with the second conduct piece 12.In the present embodiment, first part 61 and the first conduct piece 7
The tie point of tie point and upper pole 3 and the first conduct piece 7 is spaced apart, to reduce power required for pushing flip piece 5.
Further, the first protrusion 71 is formed as incline structure；First protrusion is set as incline structure, occurs in battery different
Often when the overturning of starting flip piece, the first conduct piece can be better achieved and be electrically connected with the realization of the second conduct piece；Further,
Angle between the 1 place plane of upper surface and cover board of one protrusion 71 is 5-20 °.
In the disclosure, as shown in Figure 1, insulating part 8 and the first protrusion 71 can be all formed as cylinder, the first protrusion 71 with absolutely
Edge part 8 is coaxially disposed, to be further ensured that the first conduct piece 7 can contact in time with the second conduct piece 12.
In addition, as shown in Figure 1, the second protrusion 611 can be formed in the first part 61 of indentation part 6, the second protrusion 611 with
First conduct piece 7 is connected, so as to have gap between the first conduct piece 7 and the second part 63 of indentation part 6, to guarantee open circuit
The reliability of protection, that is, guarantee in the entire open circuit protection and short-circuit handshaking procedures of battery the second part 63 of indentation part 6 with
First conduct piece 7 is in contactless state always, so that pole 3 and lower pole 4 in this process be avoided to conduct.
Further, as shown in Figure 1, in one embodiment, upper pole 3 and lower pole 4 are coaxially disposed.Other can
In the embodiment of energy, upper pole 3 and lower pole 4 can also be different axis.
In the disclosure, as shown in Figure 1, offering the through-hole with inside battery gas connection on cover board 1, flip piece 5 covers
It covers on through-hole.Wherein, as shown in Fig. 2, in one embodiment, flip piece 5 may include bottom plate, from bottom edge to updip
The side wall tiltedly extended and the flange extended horizontally outward from the upper end of side wall, flange is for being overlapped on cover board 1.It can be used
Flange 51 is connected on cover board 1 by welding manner, to prevent flip piece 5 from disengaging in switching process with cover board 1, to guarantee electricity
The reliability of pond open circuit protection.
In the present embodiment, the sealing of flip piece 5 is covered on through-hole, on the one hand inside battery gas can be prevented from through-hole
Middle spilling guarantees gas to the function and effect of flip piece 5, and on the other hand, flip piece 5 opens indentation part 6 and inside battery isolation,
To can not only stop the contact of the electrolyte of inside battery with indentation part 6, eliminates indentation part 6 caused by electrolytic corrosion and fail
Risk, but also can reduce and climb risk between components as caused by electrolyte contamination, to be promoted zero related
Reliability in part use process.
In the disclosure, for the ease of breaking indentation 62, indentation 62 can be arranged around second protrusion 611；Into one
Step ground, indentation 62 are formed as ellipse.In this way when by gas pressure, since the curvature of profile is different, 62 curvature of indentation
Biggish region stress due to concentrated stress is larger, can be torn first, to increase the sensitivity that indentation 62 is pulled off.Into
One step, insulating part 8 is formed as cylinder, and indentation 62 is formed as the ellipse coaxial with insulating part 8, in order to insulating part 8
During moving up, in time, reliably indentation 62 can be broken.
In the disclosure, as shown in Figure 1, battery cover board assembly further includes the first dead ring 9 and the second dead ring 10, upper pole
Column 3 can be insulated by the first dead ring 9 to be fixed on the second conduct piece 12, and lower pole 4 can be insulated solid by the second dead ring 10
It is scheduled on cover board 1.
The battery cover board assembly according to an embodiment of the present disclosure is briefly described below in conjunction with attached drawing while being realized disconnected
The operation principle and process on road and open circuit.
As shown in Figure 1, inside battery air pressure pushes flip piece 5 to overturn, flip piece 5 pushes indentation part 6 by insulating part 8
First part 61, and break indentation 62, to interrupt being electrically connected for upper pole 3 and battery core.
Flip piece 5 turns up, and the first conduct piece 7 is driven to contact with the second conduct piece 12 so that upper pole 3 with
First pole 2 forms short-circuit conducting by the second conduct piece 7 and cover board 1.
According to another aspect of the present disclosure, a kind of single battery 1, including above-mentioned battery cover board assembly and battery case are provided
Body and it is contained in the intracorporal battery core of the battery case, the lower pole 4 and the battery core are electrically connected by interior leading-out piece.
According to another aspect of the present disclosure, a kind of battery modules are provided, which includes multiple above-mentioned single batteries
And connection sheet, one end of the connection sheet are electrically connected with first pole 2, the upper pole of the other end of connection sheet and the second pole
Column 3 is electrically connected.
According to another aspect of the present disclosure, a kind of power battery, including backpack body and setting are provided in the intracorporal battery of the packet
Mould group, the battery modules are above-mentioned battery modules.
According to another aspect of the present disclosure, a kind of electric car is provided, which includes above-mentioned power battery.
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 its
Without prejudice to the thought of the disclosure, disclosure disclosure of that equally should be considered as.
Claims (21)
1. a kind of battery cover board assembly, which is characterized in that including cover board (1), the first pole (2), the second pole, flip piece (5),
Indentation part (6) and the first conduct piece (7), first pole (2) are electrically connected to the cover board (1), and second pole includes
Spaced upper pole (3) and lower pole (4), the upper pole (3) and the lower pole (4) insulate and are fixed on the lid
On plate (1), and the lower pole (4) is electrically connected to battery core, and the indentation part (6) is divided into first by indentation (62) thereon
Divide (61) and second part (63), the first part (61) of the indentation part (6) is electrically connected to by first conduct piece (7)
The upper pole (3), the second part (63) of the indentation part (6) are electrically connected to the lower pole (4), the flip piece (5)
It is arranged on cover board (1), the flip piece (5) connect with the first part (61) of the indentation part (6), the flip piece (5)
Can overturn under inside battery gas pressure to break the indentation (62), thus disconnect upper pole (3) and lower pole (4) it
Between electrical connection；Deformation buffer area (72) are provided on first conduct piece (7).
2. battery cover board assembly according to claim 1, which is characterized in that the deformation buffer area (72) is located at first and leads
Between electric part (7) and the tie point and the first conduct piece (7) and the tie point of upper pole (3) of indentation part (6).
3. battery cover board assembly according to claim 2, which is characterized in that the deformation buffer area (72) is formed as along lid
The strip slot structure that plate (1) width direction extends.
4. battery cover board assembly according to claim 3, which is characterized in that the deformation buffer area (72) is arc-shaped curved
Folded structure is V-shaped bending structure.
5. battery cover board assembly according to claim 1, which is characterized in that the cover board (1) further includes the second conduct piece
(12), upper pole (3) insulation is fixed on second conduct piece (12), and second conduct piece (12) is connected electrically in institute
State on cover board (1), lower pole (4) insulation is fixed on the cover board (1), the first part (61) of the indentation part (6) and/
Or first conduct piece (7) can be moved under the driving of the flip piece (5) to contact with second conduct piece (12)
Form electrical connection.
6. battery cover board assembly according to claim 3, which is characterized in that second conduct piece (12) is formed as being provide with
Protective cover on the lower pole (4), the flip piece (5), the indentation part (6) and first conduct piece (7).
7. battery cover board assembly according to claim 6, which is characterized in that second conduct piece (12) includes top plate
(121) and from the sidewall paneling (122) that the top plate (121) edge extends downwardly, the top is fixed in upper pole (3) insulation
The lower end of plate (121), the sidewall paneling (122) is fixed on the cover board (1).
8. battery cover board assembly according to claim 7, which is characterized in that the first part (61) of the indentation part (6)
And/or first conduct piece (7) can be moved under the driving of the flip piece (5) to contact with the top plate (121).
9. battery cover board assembly according to claim 1, which is characterized in that the battery cover board assembly further includes insulating part
(8), the flip piece (5) is connected with the first part (61) of the indentation part (6) by the insulating part (8).
10. battery cover board assembly according to claim 9, which is characterized in that the upper end of the insulating part (8) and indentation
The first part (61) of part (6) is electrically connected, and the lower end of the insulating part (8) is fixedly connected on flip piece (5).
11. battery cover board assembly according to claim 3, which is characterized in that fluted knot is arranged on the flip piece (5)
The lower end cooperation of structure, the insulating part is fixed in groove structure.
12. battery cover board assembly according to claim 9, which is characterized in that first conduct piece (7) is formed as sheet
Structure, one end of first conduct piece (7) are electrically connected to the upper pole (3), the other end electricity of first conduct piece (7)
Be connected to the first part (61) of the indentation part (6), be formed on first conduct piece (7) for it is described second conductive
First raised (71) of part (12) contact.
13. battery cover board assembly according to claim 12, which is characterized in that described first raised (71) are formed as tilting
Structure；Angle where the upper surface of described first raised (71) and cover board (1) between plane is 5-20 °.
14. battery cover board assembly according to claim 12, which is characterized in that the insulating part (8) and described first convex
It plays (71) and is all formed as cylinder, described first raised (71) and the insulating part (8) are coaxially disposed.
15. battery cover board assembly according to claim 1, which is characterized in that in the first part (61) of the indentation part
Second raised (611) are formed with, described second raised (611) are connected with first conduct piece (7).
16. battery cover board assembly according to claim 1, which is characterized in that the upper pole (3) and the lower pole
(4) it is coaxially disposed.
17. battery cover board assembly according to claim 1, which is characterized in that the indentation (62) is convex around described second
Play (611) setting；The indentation (62) is formed as ellipse.
18. a kind of single battery, which is characterized in that including battery cover board assembly described in any one of claim 1-17 and
Battery case and it is contained in the intracorporal battery core of battery case, the lower pole (4) and the battery core are electrically connected by interior leading-out piece.
19. a kind of battery modules, which is characterized in that the battery modules include single battery described in multiple claims 18 and company
Contact pin, one end of the connection sheet are electrically connected with first pole (2), the upper pole of the other end of connection sheet and the second pole
(3) it is electrically connected.
20. a kind of power battery, including backpack body and setting are in the intracorporal battery modules of the packet, which is characterized in that the battery mould
Group is battery modules described in claim 19.
21. a kind of electric car, which is characterized in that the electric car includes power battery described in claim 20.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110137575.8A CN112952303B (en) | 2018-04-23 | 2018-04-23 | Battery cover plate assembly, battery module, power battery and electric automobile |
| CN201810365207.7A CN110391363B (en) | 2018-04-23 | 2018-04-23 | Battery cover plate assembly, single battery, battery module, power battery and electric automobile |
| CN202110141953.XA CN112968258B (en) | 2018-04-23 | 2018-04-23 | Battery cover plate assembly, battery module, power battery and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810365207.7A CN110391363B (en) | 2018-04-23 | 2018-04-23 | Battery cover plate assembly, single battery, battery module, power battery and electric automobile |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110137575.8A Division CN112952303B (en) | 2018-04-23 | 2018-04-23 | Battery cover plate assembly, battery module, power battery and electric automobile |
| CN202110141953.XA Division CN112968258B (en) | 2018-04-23 | 2018-04-23 | Battery cover plate assembly, battery module, power battery and electric automobile |
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| Publication Number | Publication Date |
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| CN110391363A true CN110391363A (en) | 2019-10-29 |
| CN110391363B CN110391363B (en) | 2021-09-03 |
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| CN202110141953.XA Active CN112968258B (en) | 2018-04-23 | 2018-04-23 | Battery cover plate assembly, battery module, power battery and electric automobile |
| CN202110137575.8A Active CN112952303B (en) | 2018-04-23 | 2018-04-23 | Battery cover plate assembly, battery module, power battery and electric automobile |
| CN201810365207.7A Active CN110391363B (en) | 2018-04-23 | 2018-04-23 | Battery cover plate assembly, single battery, battery module, power battery and electric automobile |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110141953.XA Active CN112968258B (en) | 2018-04-23 | 2018-04-23 | Battery cover plate assembly, battery module, power battery and electric automobile |
| CN202110137575.8A Active CN112952303B (en) | 2018-04-23 | 2018-04-23 | Battery cover plate assembly, battery module, power battery and electric automobile |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN219436069U (en) * | 2022-10-09 | 2023-07-28 | 华为数字能源技术有限公司 | Battery cover plate, battery pack and energy storage system |
| CN117855710A (en) * | 2024-03-07 | 2024-04-09 | 蜂巢能源科技股份有限公司 | Cover plate assembly, battery and battery pack |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6403250B1 (en) * | 1999-03-01 | 2002-06-11 | Alps Electric Co., Ltd. | Pressure sensitive current breaker for a cell |
| CN102280596A (en) * | 2010-06-09 | 2011-12-14 | Sb锂摩托有限公司 | Secondary battery |
| CN106159185A (en) * | 2015-05-14 | 2016-11-23 | 丰田自动车株式会社 | Secondary cell |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW472411B (en) * | 1998-11-19 | 2002-01-11 | Toyo Kohan Co Ltd | Safe device for closed battery and closed battery using said device |
| US6342826B1 (en) * | 1999-08-11 | 2002-01-29 | Therm-O-Disc, Incorporated | Pressure and temperature responsive switch assembly |
| CN201681989U (en) * | 2010-08-20 | 2010-12-22 | 王文林 | Power lithium battery safety valve |
| JP5276685B2 (en) * | 2011-03-31 | 2013-08-28 | 日新製鋼株式会社 | Battery case lid manufacturing method |
| JP6023179B2 (en) * | 2012-04-12 | 2016-11-09 | 株式会社豊田自動織機 | Current interrupt device and power storage device using the same |
| CN103050646B (en) * | 2012-12-19 | 2016-04-13 | 宁德新能源科技有限公司 | A kind of top cover structure of power battery |
| JP6198129B2 (en) * | 2013-09-30 | 2017-09-20 | 株式会社Ｇｓユアサ | Electricity storage element |
| EP3341986B1 (en) * | 2015-08-25 | 2024-05-08 | CPS Technology Holdings LLC | Overcharge protection for a battery module |
| CN107123778B (en) * | 2016-02-25 | 2020-07-10 | 比亚迪股份有限公司 | Single battery, battery module, power battery and electric automobile |
| CN107123774B (en) * | 2016-02-25 | 2019-10-11 | 比亚迪股份有限公司 | Single battery, battery modules, power battery and electric car |
| CN105895836B (en) * | 2016-06-27 | 2019-04-05 | 宁德时代新能源科技股份有限公司 | Power battery top cap and power battery |
| CN205692876U (en) * | 2016-06-27 | 2016-11-16 | 宁德时代新能源科技股份有限公司 | Secondary cell top cover and secondary cell |
| JP6460417B2 (en) * | 2016-10-05 | 2019-01-30 | トヨタ自動車株式会社 | Battery manufacturing method |
| JP6471735B2 (en) * | 2016-10-11 | 2019-02-20 | トヨタ自動車株式会社 | Secondary battery |
| CN106374061A (en) * | 2016-11-24 | 2017-02-01 | 宁德时代新能源科技股份有限公司 | Top cover structure of power battery |
-
2018
- 2018-04-23 CN CN202110141953.XA patent/CN112968258B/en active Active
- 2018-04-23 CN CN202110137575.8A patent/CN112952303B/en active Active
- 2018-04-23 CN CN201810365207.7A patent/CN110391363B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6403250B1 (en) * | 1999-03-01 | 2002-06-11 | Alps Electric Co., Ltd. | Pressure sensitive current breaker for a cell |
| CN102280596A (en) * | 2010-06-09 | 2011-12-14 | Sb锂摩托有限公司 | Secondary battery |
| CN106159185A (en) * | 2015-05-14 | 2016-11-23 | 丰田自动车株式会社 | Secondary cell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112952303B (en) | 2023-07-11 |
| CN112968258B (en) | 2022-10-18 |
| CN110391363B (en) | 2021-09-03 |
| CN112952303A (en) | 2021-06-11 |
| CN112968258A (en) | 2021-06-15 |
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