CN207818641U - Battery cover board assembly, single battery, battery modules, power battery and electric vehicle - Google Patents
Battery cover board assembly, single battery, battery modules, power battery and electric vehicle Download PDFInfo
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- CN207818641U CN207818641U CN201721825801.7U CN201721825801U CN207818641U CN 207818641 U CN207818641 U CN 207818641U CN 201721825801 U CN201721825801 U CN 201721825801U CN 207818641 U CN207818641 U CN 207818641U
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- back taper
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- 238000007373 indentation Methods 0.000 claims abstract description 98
- 238000003466 welding Methods 0.000 claims description 111
- 239000000758 substrate Substances 0.000 claims description 23
- 230000005611 electricity Effects 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 13
- 230000002093 peripheral effect Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000018984 mastication Effects 0.000 description 1
- 238000010077 mastication Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/586—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/593—Spacers; Insulating plates
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
This disclosure relates to a kind of battery cover board assembly, single battery, battery modules, power battery and electric vehicle.Battery cover board assembly includes cover board, interior leading-out piece and electrode external terminal, interior leading-out piece and electrode external terminal are electrically connected by current interrupt device, current interrupt device flip piece is electrically connected with electrode external terminal, indentation part is electrically connected with interior leading-out piece, it is formed with indentation on indentation part and is electrically connected with flip piece, interior leading-out piece is installed on the cover board by cover board insulating part, cover board insulating part has the second clamping portion being clamped with interior leading-out piece, second clamping portion includes the first back taper protrusion and/or the first back taper connected in star, interior leading-out piece accordingly on be formed with the second back taper connected in star for shape-ordinatedly accommodating first back taper protrusion, and/or shape-ordinatedly it is embedded in the second back taper protrusion of the first back taper connected in star.So that interior leading-out piece can be stably mounted on cover board insulating part by back taper clamping structure.
Description
Technical field
This disclosure relates to field of batteries, and in particular, to a kind of battery cover board assembly uses the list of the battery cover board assembly
Body battery, using the battery modules of the single battery, the power battery using the battery modules and the vehicle using the power battery
.
Background technology
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, can have wherein 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 monitors electricity in charge and discharge process by BMS (battery management system)
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：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 management of charging and discharging of battery with this.But there is also deficiencies, such as battery voltage sampling or electric current
Sampling failure or software failure, leading to battery, charging cannot control for a long time, especially the case where charging pile charges
Under, when charging pile is with battery manager communication failures, overcharges and be unable to control, over-charging of battery to a certain extent, can cause battery to rouse
Rise even on fire from explosion.
Therefore it provides a kind of itself can force the current interruptions technology for disconnecting charge-discharge circuit to have positive effect.
Utility model content
Purpose of this disclosure is to provide a kind of battery cover board assemblies to be used using the single battery of the battery cover board assembly
The battery modules of the single battery, the power battery using the battery modules and the vehicle using the power battery.
To achieve the goals above, the disclosure provides a kind of battery cover board assembly, including cover board, on the inside of the cover board
Interior leading-out piece and the electrode external terminal on the outside of the cover board, the interior leading-out piece and the electrode external terminal pass through current interruptions
Device is electrically connected, and the current interrupt device includes indentation part and flip piece, and the flip piece is electrically connected with the electrode external terminal
It connecing, the indentation part is electrically connected with the interior leading-out piece, and indentation is formed on the indentation part and is electrically connected with the flip piece,
The flip piece can be acted under gas pressure to be electrically connected with the indentation part disconnection by breaking the indentation, described
Interior leading-out piece is mounted on by cover board insulating part on the cover board, and the cover board insulating part has and the interior leading-out piece clamping
Second clamping portion, second clamping portion include the first back taper protrusion and/or the first back taper connected in star, the interior leading-out piece pair
It should be formed with the second back taper connected in star and/or shape for shape-ordinatedly accommodating the first back taper protrusion on the ground
Ordinatedly it is embedded in the second back taper protrusion of the first back taper connected in star.
Optionally, second clamping portion includes multiple first back taper protrusions, accordingly, is arranged on the interior leading-out piece
There are multiple second back taper connected in stars.
Optionally, second clamping portion includes multiple first back taper connected in stars, accordingly, is arranged on the interior leading-out piece
There are multiple second back taper protrusions.
Optionally, second clamping portion includes multiple first back taper protrusions, and multiple first back taper protrusion is mutually
It extends parallel to and forms the first back taper connected in star between adjacent first back taper protrusion, it is accordingly, described interior
It is provided with multiple second back taper connected in stars on leading-out piece, second back taper is formed between adjacent second back taper connected in star
Protrusion.
Optionally, the cover board insulating part further includes the first clamping portion being clamped with the cover board.
Optionally, the cover board insulating part includes the substrate being bonded with the cover board lower surface, is formed on the cover board
Mounting hole for installing the current interrupt device, first clamping portion include the of the upper surface for being connected to the substrate
One annular protrusion, this it is first annular protrusion have L-type section, with after the mounting hole it is turned-out folding and with the substrate
Form the annular slot for the hole wall for accommodating the mounting hole.
Optionally, the interior leading-out piece is formed as laminated structure, which, which has, is electrically connected with the indentation part
Intermediate welding section and the edge welding section being electrically connected with battery core, be formed on the edge welding section on second clamping portion
Second back taper protrusion of clamping and/or the second back taper connected in star.
Optionally, the thickness of the edge welding section is more than or equal to the thickness of the intermediate welding section.
Optionally, the indentation part includes forming impressed scored region, for being electrically connected to each other with the flip piece
First welding section and the second welding section for being electrically connected with interior leading-out piece, the scored region is formed as the length along the cover board
Spend direction extend elongate structure, the indentation along the elongate structure length direction extend, and first welding section and
Second welding section is arranged in the both sides of the scored region short transverse and is respectively formed as the length direction along the cover board
The elongate structure of extension, the intermediate welding section are accordingly formed as elongate structure.
Optionally, the receiving weld groove for accommodating second welding section is formed on the intermediate welding section.
The disclosure also provides a kind of single battery, which includes shell, accommodates battery core inside the shell, Yi Jifeng
Fill the battery cover board assembly of the shell, which is characterized in that the battery cover board assembly is the battery cover board group that the disclosure provides
Part, the interior leading-out piece is electrically connected with the battery core, and the flip piece is connected to the internal gas of the shell.
The disclosure also provides a kind of battery modules, and the single battery of disclosure offer is provided in the battery modules.
The disclosure also provides a kind of power battery, including backpack body and the battery modules being arranged in the backpack body, the battery
Module is the battery modules that the disclosure provides.
The disclosure also provides a kind of electric vehicle, which is provided with the power battery of disclosure offer.
Through the above technical solutions, interior leading-out piece can be stably mounted to cover board insulating part by back taper clamping structure
On, to which during the use of battery, the power that interior leading-out piece is passed to from battery core can be directly passed to cover board insulating part then
It is transferred on cover board, then reduces the pole piece vibration processes of battery core to being connected to the influence of the indentation part on interior leading-out piece, to
The unexpected of indentation is avoided to disconnect.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool
Body embodiment is used to explain the disclosure together, but and does not constitute limitation to the disclosure.In the accompanying drawings：
Fig. 1 is a kind of decomposed stereoscopic schematic diagram of battery modules of the disclosure；
Fig. 2 is the part isometric structural schematic diagram of the flip piece of current interrupt device in embodiment of the present disclosure；
Fig. 3 is the plan view from above of the flip piece of embodiment of the present disclosure current interrupt device；
Fig. 4 is the dimensional structure diagram of the single battery of embodiment of the present disclosure battery cover board assembly；
Fig. 5 is the stereoscopic schematic diagram of the first structure of the indentation part of current interrupt device in embodiment of the present disclosure；
Fig. 6 is the stereoscopic schematic diagram of second of structure of the indentation part of current interrupt device in embodiment of the present disclosure；
Fig. 7 is the stereoscopic schematic diagram of the third structure of the indentation part of current interrupt device in embodiment of the present disclosure；
Fig. 8 is the sectional view of the battery cover board assembly of the indentation part based on Fig. 5 in embodiment of the present disclosure；
Fig. 9 is the sectional view of the battery cover board assembly of the indentation part based on Fig. 7 in embodiment of the present disclosure；
Figure 10 is a kind of part-structure schematic diagram of interior leading-out piece in embodiment of the present disclosure；
Figure 11 is the part-structure schematic diagram of leading-out piece in another kind in embodiment of the present disclosure；
Figure 12 is the dimensional structure diagram of the first cover board insulating part in embodiment of the present disclosure；
Figure 13 is the dimensional structure diagram at another visual angle of cover board insulating part in Figure 12；
Figure 14 is the dimensional structure diagram of second of cover board insulating part in embodiment of the present disclosure；
Figure 15 is the schematic cross-sectional view of the line A-A interceptions in Figure 14；
Figure 16 is that the cover board insulating part in the battery cover board assembly in Fig. 8 is replaced by the third cover board in present embodiment
The sectional view of insulating part；
Figure 17 is the dimensional structure diagram that the 4th kind of cover board insulating part is installed to cover board in embodiment of the present disclosure；
Figure 18 is that the cover board insulating part of Figure 17 is installed to the schematic cross-sectional view on cover board；
Figure 19 is the part-structure schematic diagram of the cover board in Figure 17.
Specific implementation mode
The specific implementation mode of the disclosure is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is only used for describing and explaining the disclosure, and is not used in the limitation 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 typically 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 shown in Figure 1 to 11, present disclose provides a kind of battery cover board assembly, the current interruptions in battery cover board assembly
Device, the flip piece in current interrupt device and indentation part, and using the single battery of the battery cover board assembly, use the list
The technical solution of the battery modules of body battery, the power battery using the battery modules and the vehicle using the power battery.Its
In as shown in Figure 1, current interrupt device is arranged between electrode external terminal 112 and internal battery core for inside and outside cut-out battery
Circuit.Wherein, in single cells, multiple single batteries and can be placed in battery pack by serial or parallel connection at battery modules
It is interior and form power battery.In addition, in addition to power battery field, the various technical solutions provided in the disclosure can also answer extensively
For in other field of batteries.Specifically, the disclosure introduces involved current interrupt device by two embodiments.Under
Face will be described in detail each embodiment in conjunction with attached drawing.
First, as shown in Figure 1 and Figure 4, a kind of battery modules, including multiple monomers are provided in embodiment of the present disclosure
Battery, wherein single battery may include shell 111, accommodate the cover board 110 of battery core inside the shell and package casing,
Middle electrode external terminal 112 is arranged on the cover board, for completing outputting and inputting for electric current by various electrode leading-out pieces 119.
Wherein, as shown in figure 8, interior leading-out piece 109 of the battery cover board assembly also with battery core electrical connection, current interrupt device setting exist
With can outputting and inputting with the electric current of coordination electrode terminal between electrode external terminal 112 and interior leading-out piece 109.That is current interruptions
Device is in single cells the state of battery core conducting under conventional sense, and electrode terminal can be normally carried out the input of electric current at this time
And output, to complete the charge/discharge operation of single battery, and under precarious position, such as when battery overcharges, current interruptions
Device can interrupt electric current input and the electric current output of electrode terminal, the problems such as to avoid battery from overcharging.Therefore, as
The reliability of important safety measure, current interrupt device is most important, that is, needs current interrupt device can be with quick response.
In the disclosure, the current interrupt device in each embodiment is the mechanical structure of induction air pressure, specifically, electricity
Stream interruption means and the enclosure gas connection of single battery simultaneously can act on the electric current for disconnecting and flowing through under pneumatic pressure.Specifically
It can be connected by the component of breaking inner come the transmission of interruptive current, to cut off the charge and discharge of battery in time.Wherein institute's profit
Air pressure source is：When the precarious positions such as occurs overcharging in such as battery, inside battery will produce gas and then make shell
Internal air pressure increases, or causes battery temperature to increase when exception occurs in use in battery and make inside battery gas
Pressure increases, to generate the Pneumatic pressure power of driving current interruption means.
By taking the embodiment of such as Fig. 8 as an example, the current interrupt device have indentation part 101 and with the indentation part
The 101 connected flip pieces 102 to be electrically connected to each other, and flip piece 102 can disconnect electricity with indentation part 101 under gas pressure
Connection.Can be to disconnect at least one itself in the two, such as by corresponding component in embodiment of the present disclosure
On process weak indentation to realize the disconnection of this body structure, to realize the disconnection of electrical connection, specifically in indentation part 101
On be formed with indentation 104.That is, under internal gas pressure, indentation 104 can be broken by the rotary movement of flip piece 102
And realize the disconnection of the two electrical connection, to realize the purpose for the transmission for cutting off electric current.
Why in this way, be consider due in the field of such as power battery, need by electric current compared with
Greatly, it is therefore desirable to ensure that the welding structure of indentation part 201 and flip piece 202 is stablized, avoid high current fusing welding structure.In this way
By the setting of the indentation 104 of indentation part 101, i.e., process the weak point that intensity is less than other regions in corresponding portion, so that it may
To complete being fully disconnected for indentation part 101 and flip piece 102
Wherein, in embodiment of the present disclosure, as shown in Figures 2 and 3, flip piece 102 is to form tapered sheet knot
The small end of structure, the taper is formed as the first bonding pad 115, and big end is far from indentation part 101 and is formed as the second bonding pad 116.It should
Pyramidal structure can be by two bonding pad antarafacial settings, and are capable of providing the space that 102 stress of flip piece is flipped up, to draw
Disconnected indentation 104.In other possible embodiments, flip piece can also be flexible planar member etc..
As shown in Figure 8 and Figure 9, in embodiment of the present disclosure, in order to guarantee to be acted on by the gas of inside battery,
Support ring 113, the outer peripheral edge electricity of electrode external terminal 112 are sealedly connected on the downside of the outer peripheral edge of flip piece 102 between cover board 110
Be connected on the upside of the outer peripheral edge of flip piece 102, the gas generated in this way from inside battery can act on flip piece 102 without
It can leak.And in order to make flip piece 102 be operating normally, electrode external terminal 112 is formed as capping structure and can be with shape
At there is through-hole 118, for gas is discharged when flip piece 102 acts, to avoid under gas pressure, flip piece is dynamic anyway
Make.In addition it charges and insulate in two kinds of embodiments in cover board 110, support ring 113 can select insulating materials or conduction material
Material support.Normally, support ring 113 can for ceramic ring so that cover board 110 insulation and it is not charged.
As shown in Figures 2 and 3, the battery cover board assembly that embodiment of the present disclosure provides, including flip piece 102, this is turned over
Turn part on the basis of aforementioned embodiments, is formed as the elongate structure extended along the length direction of cover board 110.Wherein, herein
In elongate structure refer to being parallel in the section of cover board in the elongate structure, the size on cover board direction is greater than other
Size on direction.Therefore, as shown in figure 4, due to being formed as the elongate structure extended along cover board, energy on flip piece 102
Enough in the case where ensureing the contact area with internal gas, the current interruptions dress that such as Fig. 1 includes the flip piece 102 is reduced
The part for exposing cover board 110 is set along possibility of the short transverse beyond cover board 110, or even as shown in figure 9, can be completely in cover board
Within the scope of, to avoid causing to interfere to other devices other than cover board 110, while overturning sensitivity and being guaranteed.
Wherein as shown in Figures 2 to 4, in embodiment of the present disclosure, the end of the elongate structure along its length is
Arc-shaped, i.e., it, which is parallel to the section of cover board, has an arcuate structure of intermediate rectangle and both ends, i.e. structure without turning, to
While adapting to the structure of cover board 110, convenient for forming flip piece structure corresponding with other of annular, such as matched quarter
Trace part 101, support ring 113 and electrode external terminal 112.In other embodiments, elongate structure can also be kidney-shaped structure
Or oval structure, the long axis of kidney-shaped structure or oval cross section is i.e. along the direction of cover board.In some embodiments, elongate structure
Parallel may be formed as the other shapes such as rectangular section with cover board section.
In embodiment of the present disclosure, since the component connected outside cover board 110 with flip piece 102 is electrode external terminal
112 and support ring 113, therefore both can design and to be similarly matched elongate structure, in this way, for the company between component
It connects, the second bonding pad 115 being at least connected with electrode external terminal 112 and support ring 113 in flip piece 102 is formed as elongated knot
Structure.For support ring 113 therein due to being connected with cover board 110, the elongate structure that can design its formation does not stretch out the side of cover board 110
Edge, the specially widthwise edges of cover board 110, wherein the edge of the widthwise edges of the optional support ring 113 and cover board 110 is aligned.
So that flip piece 102 obtains larger design and stress space.
In the present embodiment, as shown in Fig. 2, the first bonding pad 116 is also correspondingly formed the elongated knot to extend along cover board
Structure.The end of the elongate structure along its length is arc-shaped, and the elongate structure may be oval or kidney-shaped structure.It is right
The indentation part 101 answered can then be formed as elongate structure as shown in Figures 5 to 7.
Continuing on the flip piece 102 in present embodiment, flip piece 102 is along the direction perpendicular to 110 upper surface of cover board
To form the laminated structure of taper, the first bonding pad 115 that the small end of the taper is formed is formed as elongate structure, and big end is far from quarter
Trace part 110 and the second bonding pad 116 of formation, second bonding pad 116 is parallel with the first bonding pad 115 and is formed as elongated knot
Structure.Specifically, the second bonding pad 106 is turnup structure, to facilitate while be connected with support ring 113 with electrode external terminal 122.
In the present embodiment, in order to ensure bonding strength, the thickness point of the first bonding pad 115 and the second bonding pad 116
123 thickness of operating space that great Yu be not between the two.Specifically, the thickness of the first bonding pad and the second bonding pad be can be with 0.3-
The thickness of 3mm, operating space 123 can be 0.05-0.3mm.The design is equally applicable to the flip piece in other embodiment
102。
As shown in Figures 5 to 7, the battery cover board assembly provided based on embodiment of the present disclosure, continues to introduce the disclosure
The three kinds of indentation parts provided.The indentation part of loop configuration, the quarter provided in present embodiment are provided different from existing indentation
In trace part 101, indentation 104 is the elongated indentation of non-closed loop.Specifically, in indentation part 101 perpendicular to 110 length direction of cover board
On vertical section, the first welding section 103, scored region 105 and the second welding section 107 is in a strip shape sets gradually, and indentation 104 exists
The length direction of 105 upper edge cover board 110 of scored region extends.In this way the first welding section can be equally disconnected by breaking indentation 104
103 and the second electrical connection between welding section 107, play the role of current interruptions.In addition cloth in a strip shape in the vertical direction
Mode is set, i.e. the size of indentation part in the height direction is more than its size in the direction of the width, can effectively save quarter in this way
The size of trace part 101 in the direction of the width is conducive to overall current interruption means in the direction of the width without departing from the model of cover board 110
It encloses.
In addition, in the present embodiment, scored region 105 is formed as the elongate structure extended along the length direction of cover board, i.e.,
Size on indentation part length direction is more than the size in its width direction and short transverse.Indentation 104 therein is elongated along this
The length direction of structure extends, and to form the indentation of non-closed loop, optionally, indentation 104 is linear indentation, possible at other
Embodiment in, indentation can also be the elongated indentation such as curve or broken line.And in order to realize breaking for indentation 104, first
Welding section 103 and the second welding section 107 are arranged in the both sides of 105 short transverse of scored region.I.e. as in the orientation of figure, first welds
Area 103, scored region 105 and the second welding section 107 are set gradually from top to bottom along short transverse, to hanging down in indentation part 101
Directly in linear distribution on the vertical section of cover board 110.To be different from the existing annular indentation part being radially distributed.In this way,
After the overturning of 102 stress of flip piece, indentation 104 can equally be broken, to realize the purpose of current interruptions.
As shown in Figure 5 and Figure 6, in one embodiment, the first welding section 103, scored region and the second welding section are in height
Sequentially formed on direction as I-shaped structure, i.e., the both sides of two welding sections protruded from scored region 105 and can respectively and its
The solder joint of his component.In this way when with flip piece and the welding of motor inner terminal, welding is more stablized, and is avoided the occurrence of in outer force effect
Under there is the problem of solder joint surprisingly disconnects.The short transverse of wherein indentation part 101 is being filled for its length direction
After being fitted on cover board, short transverse is the upper and lower directions relative to cover board.In another embodiment, the first welding section
103, scored region 105 and the second welding section 107 are sequentially formed in the height direction as Z-shaped structure.That is, two welding sections only have
Unilateral solder joint is protruded from scored region 105 and can be formed in side, in this way, when receiving external impacts, the corner of Z-shaped structure
There can be buffering effect, the indentation 104 being located to protection on the scored region 105 between two welding sections, and reduce indentation
104 possibility being surprisingly broken.
In addition, though I-shaped or Z-shaped, enable in present embodiment, the welding of indentation 104 and two welding sections
Region is arranged in short transverse or other directions in Different Plane, to reduce the heats such as laser welding to indentation
It influences.
In order to adapt to this elongated indentation part 101, as shown in Fig. 2, what flip piece therein 102 was formed as extending along cover board
Elongate structure, and the setting being mutually parallel with the elongate structure of indentation part 101, wherein the first connection that flip piece 102 has
Area 115 extends and is welded to each other along the first welding section 103, which is formed as elongate structure and lower surface is formed with
Accommodate the weld groove 124 of the first welding section 103.Wherein weld groove 124 can be the N-shaped slot that section is n shapes, or section L
The L-type slot of type.
Specifically, as shown in Figure 2 and Figure 7, when indentation part 101 be I-shaped structure when, weld groove 124 be N-shaped slot, with appearance
Two lateral edges into the first welding section 103 of the weld groove of receiving weld, such as by being brazed seam weld welding, so that the two is electric
Stable connection.
In addition, as shown in figure 9, when indentation part 101 is Z-shaped structure, weld groove 124 can with L-type structure, with receiving
Into lateral edges welding of the first welding section of the weld groove far from the second welding section, such as by being brazed seam weld welding.It in this way can be with
When receiving external force, the buffering to scored region 105 is formed by the turning of Z-shaped structure.
In the present embodiment, no matter I-shaped or Z-shaped structure, also or half I-shaped half Z-shaped, indentation 104 can
It is parallel with the first welding section 103 and the second welding section 107 respectively to be arranged so that, can be to indentation when flip piece 102 is overturn
104 each section applies maximum vertical mastication forces, the component without generating other directions, to provide current interrupt device
Sensitivity.
In the present embodiment, as shown in Figure 5 or Figure 6, the end of indentation 104 can be penetrated through to 105 edge of scored region also
Or it is arranged with the edge interval of scored region 105.The spirit of current interrupt device can be promoted by wherein penetrating through the edge to scored region 105
Sensitivity, and possess interval and then can guarantee indentation part 101 when inside battery air pressure is fluctuated in low range, inner pressure of battery is to indentation
The indentation 104 of piece 101 will not have an impact, and only when internal pressure value is more than predetermined value, cell internal pressure could draw indentation 104
It is disconnected.
As shown in fig. 6, when having interval between the end of indentation 105 and the edge of scored region 105, especially both ends have
When with interval, it can design and be divided into 0.01-1mm between the end of indentation 104 and the edge of scored region 105, further, carve
It is divided into 0.05-0.5mm between the end and the edge of scored region 105 of trace 104.To ensure the spirit of current interrupt device
Sensitivity, additionally it is possible to ensure that indentation is not influenced by external force or air pressure inside fluctuation and is disconnected in addition.
In two kinds of embodiments of the I-shaped and Z-shaped of present embodiment, the first welding section 103 and the second welding section
107 thickness be respectively greater than or equal to scored region 105 thickness.Herein it should be noted that being formed as due to scored region 105
Platy structure, the thickness direction of thickness direction and two welding sections and inconsistent, the thickness direction of two of which welding section exists
It is upper and lower directions in figure, i.e., is welded, can be understood as perpendicular to the direction of cover board 110 with the lateral edges of weld groove, and carves
The thickness direction in trace area 102 is then the parallel direction with cover board 110, i.e., the width direction of whole indentation part, at this time 104 shape of indentation
At on the side that about 105 scored region extends.
Specifically, the thickness of the first welding section 103 and the second welding section 107 is 0.4-5mm, and the thickness of scored region 105 is
0.05-1mm.Further, the thickness of the first welding section 103 and the second welding section 107 is 0.8-3mm, the thickness of scored region 105
For 0.1-0.8mm.Therefore, the thickness of two welding sections is less than or equal to by the way that the thickness of scored region 105 is arranged, both can guarantee welding
The weld strength in region, and can be processed for the indentation of high quality and basis is provided.
Furthermore it is also possible to which the thickness for designing the first welding section 103 is equal to or less than the thickness in the second 107th area of welding.Therefore
The assembly space of more occupancy flip piece 102 can be avoided while ensureing weld strength so that flip piece 102 can be with
That designs in the height direction as possible is thicker, and indentation 104 is broken to carry out larger rotary movement.
In the present embodiment, as shown in Figure 6 and Figure 7, indentation 104 can be one be formed on 105 single side of scored region
Item, or as shown in figure 5, for be formed in scored region 105 it is two-sided on two.When indentation 104 is two, two indentations are being carved
Setting is aligned on the two sides in trace area 105, to promote the sensitivity of current interrupt device.
In the present embodiment, as shown in Figure 8 and Figure 9, flip piece has the second bonding pad for being formed as elongate structure
116, it is sealedly connected with support ring 113, the outer peripheral edge of electrode external terminal 112 between the downside and cover board 110 of the second bonding pad 116
It is connected electrically in the upside of the second bonding pad 116.In this way, support ring can be formed as the elongate structure extended along cover board, and more
It is possible to further as shown in figure 9, widthwise edges of the support ring without departing from cover board are designed, to avoid influencing its outside battery
His equipment.
In order to adapt to the assembly of elongated indentation part 101, as schemed in the battery cover board assembly that disclosure embodiment provides
8, shown in Figure 10 and Figure 11, interior leading-out piece 109 is formed as laminated structure, which, which has, is electrically connected with indentation part 101
Intermediate welding section 131 and the edge welding section 132 being electrically connected with battery core, edge welding section 132 are located at the outer of intermediate welding section 131
Side.Wherein, the thickness of edge welding section 132 is more than or equal to the thickness of intermediate welding section 131.Thickness in intermediate welding section 131
When smaller, step structure can be constituted with edge welding section 132 and there is difference in height, i.e., as shown in figure 8, the two is in vertical direction
On not in the same plane, in this way, carrying out edge welding section and cell polar ear or and other adapters between battery core
When welding, cushioning effect can be played to the indentation part 101 for being connected between welding section.
Specifically, in order to ensure structural strength and cushioning effect, optionally, the thickness of intermediate welding section 131 is 0.1-
The thickness of 1mm, edge welding section 132 are 1-5mm.On another formal structure, as shown in Figure 10, edge welding section 132 is formed as enclosing
Circular connected region around intermediate welding section 131, the wherein figure are the part figure being intercepted, and pass through the edge welding section 132 of annular
Intermediate welding section 131 can be surrounded, in addition as shown in figure 11, edge welding section can also be positioned at the intermediate welding section 131
The bar shaped welding section of both sides.Intermediate welding section 131 is not closed so that intermediate welding section both ends have opening, for such change
Shape is all fallen in protection scope of the present invention.In addition, intermediate welding section 131 and edge welding section 132 can be integrally formed, in this way
The welding quantity of component can be reduced, assembly is simpler, and in some embodiments, the two can be connected with fission, such as
By being weldingly connected, the cushioning effect to intermediate welding region can be increased in this way.
Further, the of indentation part 101 is accommodated as shown in figure 8, could be formed on the intermediate welding section of interior leading-out piece 109
The receiving weld groove 133 of two welding sections 107, the receiving weld groove extend and same shape along the second welding section 107 for forming elongate structure
At elongate structure, and can penetrate through intermediate welding section in the up-down direction, can also through-hole structure can not also penetrate through,
It can be realized and be welded by seam weld (soldering etc.) between the second welding section 107.
In the present embodiment, the scored region 105 of indentation part 101 is formed as the length extended along the length direction of cover board 110
Shape structure, indentation 104 extend along the length direction of the elongate structure, and the first welding section 103 and the setting of the second welding section 107
In scored region the both sides of 105 short transverse and be respectively formed as along cover board length direction extend elongate structure, centre welding
Area 131 is accordingly formed as elongate structure, and the receiving weldering for accommodating the second welding section 107 is formed on intermediate welding section 131
Slot 133.
Further as shown in Figure 12 to Figure 19, continue to be discussed in detail a variety of cover board insulating parts 122 in the disclosure.Wherein,
Interior leading-out piece 109 is mounted on by cover board insulating part 122 on cover board 110, wherein cover board insulating part 122 has to be blocked with cover board 110
The first clamping portion 125 connect and the second clamping portion 126 being clamped with interior leading-out piece 109.That is, cover board insulating part 122 can pass through
The stable structure of clamping is mounted on cover board 110, to which during the use of battery, interior leading-out piece 109 is passed to from battery core
Power can be directly passed on cover board 110, then reduce the pole piece vibration processes of battery core to quarter for being connected on interior leading-out piece 109
The influence of trace part 101, to avoid the unexpected of indentation 104 from disconnecting.
As shown in Fig. 8, Figure 12 and Figure 13, in the first cover board insulating part 122, the clamping of the first clamping portion 125 and second
Portion 126 is respectively formed as annular slot.In other embodiments, can also there was only the first clamping portion 125 or the second clamping portion
126 are formed as annular slot.Wherein, in the present embodiment, two clamping portions are all formed as annular slot, the difference is that two
The opening direction of annular slot is opposite.
Specifically, cover board insulating part 122 includes the substrate 128 being bonded with 110 lower surface of cover board, as shown in figure 8, cover board
The mounting hole 127 for installing current interrupt device (indentation part or flip piece) is formed on 110, as shown in Figure 12 and Figure 13,
First clamping portion 125 includes first annular raised the 129 of the upper surface for being connected to substrate 128, which has L-type
Section, to form the annular slot for the hole wall for accommodating mounting hole 127 with substrate 128 in the turned-out folding after mounting hole, i.e.,
The opening of the annular slot is located at radial outside, to be inserted into for the hole wall of mounting hole 127, then wraps up the hole wall, realizes lid
Plate 110 and stablizing for cover board insulating part 122 are clamped.
Different from the first clamping portion 125, as noted previously, as interior leading-out piece 109 can be formed as laminated structure, the second card
The annular slot that socket part 126 is formed is used to accommodate the outer peripheral edge of interior leading-out piece 109, i.e. it is inside to be located at diameter for the opening of the annular slot
Side, so that the outer peripheral edge of interior leading-out piece 109 is inserted into and wraps up its outer peripheral edge so that the installation of interior leading-out piece 109 is more
Add firm.Specifically, the second clamping portion 126 includes the second annular protrusion 130 of the lower surface for being connected to substrate 128, this second
Annular protrusion with L-type section with the opening positioned at radially inner side, with formed with substrate 128 accommodate in leading-out piece periphery
The annular slot of edge.More specifically, the edge welding section 132 of the interior leading-out piece 109 of above-mentioned formation sheet is located at intermediate weld
The outside in area 131 is to be caught in the annular slot formed by the second clamping portion 126.To complete cover board insulating part 122 and interior draw
Go out part 109 stablizes clamping.
As shown in Figure 14 and Figure 15, second of cover board insulating part 122 has the first clamping portion 125 being clamped with cover board 110,
Different from the first cover board insulating part, the first clamping portion 125 in the present embodiment includes that the first back taper protrusion and/or first fall
Conical socket, cover board 110 accordingly on be formed with the second back taper connected in star for shape-ordinatedly accommodating first back taper protrusion,
And/or it is shape-ordinatedly embedded in the second back taper protrusion of the first back taper connected in star, to by back taper protrusion and
The shape cooperation of conical socket realizes that the clamping between cover board insulating part 122 and cover board 110, this snap fit can make
Cover board insulating part 122 realizes that face face is connected without protruding other structures with cover board 110, to more save space, especially has
Conducive to the arrangement of current interrupt device.
In the present embodiment, the first clamping portion 125 includes multiple first back taper connected in stars, such as two, in the cover board
Multiple the second back taper protrusions with the first back taper fit depressions are provided on 110.
In another embodiment, the first clamping portion 125 includes multiple first back tapers protrusion, accordingly, in the lid
The matched second back taper connected in star of multiple and first back taper protrusion is provided on plate 110.
In another embodiment, the first clamping portion 125 includes multiple first back taper connected in stars, such as two, multiple
First back taper connected in star extends parallel to each other and is formed between adjacent first back taper connected in star the first back taper protrusion,
Accordingly, it is provided with multiple second back taper protrusions on cover board, such as forms one between two adjacent second back taper protrusions
Second back taper connected in star, that is, a first back taper protrusion of cover board insulating part 122 is embedded into one second on cover board 110
In back taper connected in star, two the second back taper protrusions on cover board 110 then two the first back tapers on insert cover board insulated piece 122
In connected in star, so that the snap fit to be interlocked by groove protrusion, realization cover board 110 and cover board insulating part 122 are stably connected with.
Wherein in the present embodiment, the second clamping portion 126 and first that cover board insulating part 122 is clamped with interior leading-out piece 109
Second clamping portion of kind cover board insulating part is identical, that is, is formed as the annular slot being open in radially inner side, is formed for accommodating
For the outer peripheral edge of the interior leading-out piece 109 of laminated structure.Specifically, the substrate 128 of cover board insulating part 122 and 110 lower surface of cover board
Fitting, the second annular protrusion 130 of the lower surface for being connected to substrate 128 of the second clamping portion 126 have L-type section, with base
Plate 128 forms the annular slot for the outer peripheral edge for accommodating interior leading-out piece, and the edge welding section 132 of interior leading-out piece 109 is located at intermediate weld
The outside in area 131 is connect to be caught in the annular slot formed by the second clamping portion 126.
As shown in figure 16, the third cover board insulating part 122 has the second clamping portion 126 being clamped with interior leading-out piece 109,
Second clamping portion 126 include the first back taper protrusion and/or the first back taper connected in star, interior leading-out piece 109 accordingly on be formed with
The second back taper connected in star of first back taper protrusion is shape-ordinatedly accommodated, and/or is shape-ordinatedly embedded in first and falls
That is, in the present embodiment the second back taper protrusion of conical socket is coordinated by back taper protrusion and the shape of back taper connected in star
Realize that the clamping between cover board insulating part 122 and interior leading-out piece 109, this snap fit can make 122 He of cover board insulating part
Interior leading-out piece 109 realizes that the connection of face face without protruding other structures, to more save space, is particularly advantageous to current interruptions
The arrangement of device.
Wherein, the second clamping portion 126 includes multiple first back tapers protrusion, such as two, accordingly, interior leading-out piece 109
On be provided with multiple matched second back taper connected in stars of protrusion with first back taper.
Alternatively, the second clamping portion 126 is accordingly provided on interior leading-out piece 109 including multiple first back taper connected in stars
Multiple the second back taper protrusions with the first back taper fit depressions.
Alternatively, the second clamping portion 126 includes multiple first back tapers protrusion, such as two, multiple first back taper is convex
It rises to extend parallel to each other and form a first back taper connected in star between adjacent first back taper protrusion and accordingly inside draw
Go out on part 109 to be provided with multiple second back taper connected in stars, such as two, one second is formed between adjacent second back taper connected in star
Back taper protrusion.That is, as shown in figure 16, two the first back taper protrusions of cover board insulating part 122 are embedded on interior leading-out piece 109
Two the second back taper connected in stars in, a second back taper protrusion on interior leading-out piece 109 is then on insert cover board insulated piece 122
A first back taper connected in star in, to by groove protrusion interlock snap fit, realize in leading-out piece 109 and cover board it is exhausted
Edge part 122 is stably connected with.
Wherein, it is formed on the edge welding section 132 of the interior leading-out piece 109 of laminated structure and is formed with and the second clamping portion 126
The second back taper protrusion of upper clamping and/or the second back taper connected in star, i.e., in the present embodiment, as shown in figure 16, among the above
On the edge welding section 132 of two the second back taper grooves, 131 both sides of welding section formed between.
In the present embodiment, the first clamping portion 125 and the first above-mentioned that cover board insulating part 122 is clamped with cover board 110
First clamping portion 125 of cover board insulating part is identical, that is, is formed as the annular slot being open in radial outside, specifically, this implementation
Cover board insulating part 122 in example includes the substrate 128 being bonded with 110 lower surface of cover board, is formed on cover board 110 for installing electricity
The mounting hole 127 of interruption means is flowed, the first clamping portion 125 includes the first annular protrusion for the upper surface for being connected to substrate 128
129, which has L-type section, to be formed with substrate 128 in the turned-out folding after mounting hole and accommodate installation
The annular slot of the hole wall in hole 127.
As shown in Figures 17 to 19, the 4th kind of cover board insulating part 122 has the first clamping portion 125 being clamped with cover board 110,
The mounting hole 127 for installing current interrupt device is formed on cover board 110, and around the multiple of the mounting hole 127 formation
Blocked hole 134, cover board insulating part 122 include the substrate 128 being bonded with 110 lower surface of cover board, the first clamping portion 125 include from
The upper surface of substrate 128 extends up through the turned-out cutting ferrule rolled over and be passed down through blocked hole and substrate 128 after mounting hole 127
Structure, to pass through this closed ferrule structure so that be clamped and stablize between cover board 110 and cover board insulating part 122.
Specifically, which includes annular protrusion 135 and along the circumferentially spaced of the annular protrusion
Multiple connecting poles 136, annular protrusion 135 have L-type section in the turned-out folding after mounting hole, connecting pole 136 passes through card
It connects hole 134 and is connected between annular protrusion 135 and substrate 128, to realize by annular protrusion 135, connecting pole 136 and substrate
128 constitute the ferrule structure of difference, and plurality of connecting pole 136 can be uniformly distributed as shown in figure 17 to ensure ferrule structure
Intensity.Specifically, mounting hole 127 and annular protrusion 135 are respectively formed as the elongated knot extended along the length direction of cover board 110
Structure wherein 136 quantity of connecting pole positioned at 127 width direction both sides of mounting hole is identical, and is arranged at equal intervals, further,
The interval of both sides connecting pole is also identical, i.e. the setting that the connecting poles 136 of both sides is aligned one by one in the direction of the width, so that card
The vibration that interior lead-out tablet 109 is passed to by battery core simultaneously equably can be passed through edge attachment zones 132 by the intensity stabilization of nested structure
It is effectively passed on cover board 110, and reduces the possibility being affected on the indentation part 101 being connected between on welding section 131.
As shown in figure 18, the second clamping portion 126 that the cover board insulating part 122 in the present embodiment is clamped with interior leading-out piece 109
It is identical as the second clamping portion of the first cover board insulating part, that is, be formed as annular slot of the opening positioned at radially inner side.Wherein, interior
Leading-out piece 109 is formed as laminated structure, which is used to accommodate the outer peripheral edge of interior leading-out piece 109, cover board insulating part 122
The second annular protrusion 130 on the lower surface for the substrate 128 being bonded with 110 lower surface of cover board has L-type section, with substrate
128 form the annular slot for the outer peripheral edge for accommodating interior leading-out piece.Form the edge welding section of the interior leading-out piece 109 of laminated structure
132 are located at the outside of intermediate welding section 131 to be caught in the annular slot formed by the second clamping portion.
The single battery that the disclosure provides, including shell 111, accommodate the upper of battery core inside the shell and package casing
The battery cover board assembly stated, interior leading-out piece 109 are electrically connected with battery core, and flip piece 102 is connected to the internal gas of shell.
The battery modules that the disclosure provides are provided with above-mentioned single battery in the battery modules.
The power battery that the disclosure provides, including backpack body and the above-mentioned battery modules that are arranged in the backpack body.
The electric vehicle that the disclosure provides, the electric vehicle are provided with above-mentioned power battery.
Five kinds of embodiments of the disclosure are described in detail above in association with attached drawing, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy no longer separately illustrates.
In addition, arbitrary 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 (14)
1. a kind of battery cover board assembly, including cover board (110), the interior leading-out piece (109) that is located on the inside of the cover board (110) and it is located at
Electrode external terminal (112) on the outside of the cover board (110), the interior leading-out piece (109) and the electrode external terminal (112) pass through electricity
Interruption means electrical connection is flowed, the current interrupt device includes indentation part (101) and flip piece (102), the flip piece and institute
The electrical connection of electrode external terminal is stated, the indentation part is electrically connected with the interior leading-out piece, and indentation (104) is formed on the indentation part
And be electrically connected with the flip piece (102), the flip piece (102) can act under gas pressure with by breaking the quarter
Trace (104) and with the indentation part (101) disconnect be electrically connected, which is characterized in that the interior leading-out piece passes through cover board insulating part
(122) it is mounted on the cover board (110), the cover board insulating part (122) has the with interior leading-out piece (109) clamping
Two clamping portions (126), second clamping portion (126) includes the first back taper protrusion and/or the first back taper connected in star, described interior
Leading-out piece (109) is accordingly formed with the second back taper connected in star for shape-ordinatedly accommodating the first back taper protrusion, with
And/or person is shape-ordinatedly embedded in the second back taper protrusion of the first back taper connected in star.
2. battery cover board assembly according to claim 1, which is characterized in that second clamping portion (126) includes multiple
First back taper protrusion, accordingly, multiple second back taper connected in stars is provided on the interior leading-out piece (109).
3. battery cover board assembly according to claim 1, which is characterized in that second clamping portion (126) includes multiple
First back taper connected in star is accordingly provided with multiple second back taper protrusions on the interior leading-out piece (109).
4. battery cover board assembly according to claim 1, which is characterized in that second clamping portion (126) includes multiple
First back taper protrusion, multiple first back taper protrusion extends parallel to each other and shape between adjacent first back taper protrusion
At the first back taper connected in star, accordingly, multiple second back taper connected in stars are provided on the interior leading-out piece (109),
The second back taper protrusion is formed between adjacent second back taper connected in star.
5. battery cover board assembly according to claim 1, which is characterized in that the cover board insulating part (122) further include with
The first clamping portion (125) of cover board (110) clamping.
6. battery cover board assembly according to claim 5, which is characterized in that the cover board insulating part (122) includes and institute
The substrate (128) of cover board (110) lower surface fitting is stated, is formed on the cover board (110) for installing the current interruptions dress
The mounting hole (127) set, first clamping portion (125) include be connected to the substrate (128) upper surface it is first annular
Raised (129), the first annular protrusion have L-type section, with the turned-out folding after the mounting hole and with the substrate
(128) annular slot for the hole wall for accommodating the mounting hole (127) is formed.
7. battery cover board assembly according to claim 1, which is characterized in that the interior leading-out piece (109) is formed as sheet
Structure, it intermediate welding section (131) and the side that is electrically connected with battery core which, which has be electrically connected with the indentation part (101),
Edge welding section (132), be formed on the edge welding section (132) be clamped on second clamping portion (126) described
Second-speculation's tapered protrusion and/or the second back taper connected in star.
8. battery cover board assembly according to claim 7, which is characterized in that the thickness of the edge welding section (132) is big
In the thickness equal to the intermediate welding section (131).
9. battery cover board assembly according to claim 7 or 8, which is characterized in that the indentation part (101) includes being formed with
The scored region (105) of indentation (104), the first welding section (103) for being electrically connected to each other with the flip piece (102) and use
In the second welding section (107) being electrically connected with interior leading-out piece (109), the scored region (105) is formed as along the cover board (110)
The elongate structure that extends of length direction, the indentation (104) extends along the length direction of the elongate structure, and described the
One welding section and second welding section are arranged in the both sides of the scored region (105) short transverse and are respectively formed as along described
The elongate structure that the length direction of cover board extends, the intermediate welding section (131) are accordingly formed as elongate structure.
10. battery cover board assembly according to claim 9, which is characterized in that be formed on the intermediate welding section (131)
Accommodate the receiving weld groove (133) of second welding section (107).
11. a kind of single battery, which includes shell (111), accommodates battery core inside the shell and encapsulate described outer
The battery cover board assembly of shell, which is characterized in that the battery cover board assembly is according to described in any one of claim 1-10
Battery cover board assembly, the interior leading-out piece (109) is electrically connected with the battery core, and the flip piece (102) with it is described outer
The internal gas of shell is connected to.
12. a kind of battery modules, which is characterized in that be provided with monomer electricity according to claim 11 in the battery modules
Pond.
13. a kind of power battery, including backpack body and the battery modules that are arranged in the backpack body, which is characterized in that the battery mould
Group is according to the battery modules described in claim 11.
14. a kind of electric vehicle, which is characterized in that the electric vehicle is provided with power battery according to claim 13.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721825801.7U CN207818641U (en) | 2017-12-22 | 2017-12-22 | Battery cover board assembly, single battery, battery modules, power battery and electric vehicle |
| PCT/CN2018/122545 WO2019120272A1 (en) | 2017-12-22 | 2018-12-21 | Battery cover plate assembly, single battery, battery module, power battery and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721825801.7U CN207818641U (en) | 2017-12-22 | 2017-12-22 | Battery cover board assembly, single battery, battery modules, power battery and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207818641U true CN207818641U (en) | 2018-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721825801.7U Active CN207818641U (en) | 2017-12-22 | 2017-12-22 | Battery cover board assembly, single battery, battery modules, power battery and electric vehicle |
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| Country | Link |
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| CN (1) | CN207818641U (en) |
| WO (1) | WO2019120272A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019120236A1 (en) * | 2017-12-22 | 2019-06-27 | 比亚迪股份有限公司 | Cover plate assembly, single battery, battery module, power battery and electric vehicle |
| WO2019120238A1 (en) * | 2017-12-22 | 2019-06-27 | 比亚迪股份有限公司 | Battery cover assembly, single cell, battery module, power battery, and electric vehicle |
| WO2019120272A1 (en) * | 2017-12-22 | 2019-06-27 | 比亚迪股份有限公司 | Battery cover plate assembly, single battery, battery module, power battery and electric vehicle |
| WO2019120224A1 (en) * | 2017-12-22 | 2019-06-27 | 比亚迪股份有限公司 | Battery cover plate assembly, single battery, battery module, power battery and electric vehicle |
| WO2019120225A1 (en) * | 2017-12-22 | 2019-06-27 | 比亚迪股份有限公司 | Battery cover plate assembly, battery cell, battery module, power battery and electric automobile |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111114091A (en) * | 2019-12-27 | 2020-05-08 | 东莞市博拓锂电科技有限公司 | Automatic chip mounter for battery cell and automatic chip mounting method |
| CN111391348A (en) * | 2020-03-23 | 2020-07-10 | 信维创科通信技术（北京）有限公司 | Welding jig |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5866621B2 (en) * | 2012-09-27 | 2016-02-17 | トヨタ自動車株式会社 | Lid, sealed battery, and manufacturing method of sealed battery |
| JP6107568B2 (en) * | 2013-09-25 | 2017-04-05 | トヨタ自動車株式会社 | Secondary battery |
| JP6599129B2 (en) * | 2015-05-15 | 2019-10-30 | 三洋電機株式会社 | Rectangular secondary battery, assembled battery using the same, and manufacturing method thereof |
| CN205790089U (en) * | 2016-05-31 | 2016-12-07 | 比亚迪股份有限公司 | A kind of cover plate assembly and battery |
| CN207818641U (en) * | 2017-12-22 | 2018-09-04 | 比亚迪股份有限公司 | Battery cover board assembly, single battery, battery modules, power battery and electric vehicle |
| CN207818749U (en) * | 2017-12-22 | 2018-09-04 | 比亚迪股份有限公司 | Battery cover board assembly, single battery, battery modules, power battery and electric vehicle |
| CN207818643U (en) * | 2017-12-22 | 2018-09-04 | 比亚迪股份有限公司 | Battery cover board assembly, single battery, battery modules, power battery and electric vehicle |
| CN207818642U (en) * | 2017-12-22 | 2018-09-04 | 比亚迪股份有限公司 | Battery cover board assembly, single battery, battery modules, power battery and electric vehicle |
-
2017
- 2017-12-22 CN CN201721825801.7U patent/CN207818641U/en active Active
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2018
- 2018-12-21 WO PCT/CN2018/122545 patent/WO2019120272A1/en active Application Filing
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019120236A1 (en) * | 2017-12-22 | 2019-06-27 | 比亚迪股份有限公司 | Cover plate assembly, single battery, battery module, power battery and electric vehicle |
| WO2019120238A1 (en) * | 2017-12-22 | 2019-06-27 | 比亚迪股份有限公司 | Battery cover assembly, single cell, battery module, power battery, and electric vehicle |
| WO2019120272A1 (en) * | 2017-12-22 | 2019-06-27 | 比亚迪股份有限公司 | Battery cover plate assembly, single battery, battery module, power battery and electric vehicle |
| WO2019120224A1 (en) * | 2017-12-22 | 2019-06-27 | 比亚迪股份有限公司 | Battery cover plate assembly, single battery, battery module, power battery and electric vehicle |
| WO2019120225A1 (en) * | 2017-12-22 | 2019-06-27 | 比亚迪股份有限公司 | Battery cover plate assembly, battery cell, battery module, power battery and electric automobile |
| US11728505B2 (en) | 2017-12-22 | 2023-08-15 | Byd Company Limited | Battery cover plate assembly comprising a current interrupt apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019120272A1 (en) | 2019-06-27 |
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