CN108288687A - Cell polar ear attachment device and battery pack - Google Patents
Cell polar ear attachment device and battery pack Download PDFInfo
- Publication number
- CN108288687A CN108288687A CN201711383169.XA CN201711383169A CN108288687A CN 108288687 A CN108288687 A CN 108288687A CN 201711383169 A CN201711383169 A CN 201711383169A CN 108288687 A CN108288687 A CN 108288687A
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- Prior art keywords
- cell polar
- polar ear
- attachment device
- metallic conduction
- conduction plate
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- 239000004033 plastic Substances 0.000 claims abstract description 30
- 229920003023 plastic Polymers 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims description 37
- 239000002184 metal Substances 0.000 claims description 37
- 239000003822 epoxy resin Substances 0.000 claims description 11
- 229920000647 polyepoxide Polymers 0.000 claims description 11
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000005304 joining Methods 0.000 abstract description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 10
- 229910052744 lithium Inorganic materials 0.000 description 10
- 238000009459 flexible packaging Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 210000005069 ears Anatomy 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 210000000887 face Anatomy 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000021185 dessert Nutrition 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000649 photocoagulation Effects 0.000 description 1
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- 239000011347 resin Substances 0.000 description 1
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention belongs to battery technology fields, more particularly to a kind of cell polar ear attachment device and battery pack, cell polar ear attachment device includes plastic casing, metallic conduction plate and at least one elastic component, the plastic casing is equipped with installation cavity, each elastic component is installed on the bottom of the installation cavity for supporting cell polar ear, the metallic conduction plate is set in the installation cavity and is fixedly connected with the plastic casing, and the metallic conduction plate is located at the top of each elastic component for compressing the cell polar ear on each elastic component.The cell polar ear attachment device stable connection of the present invention, conduction are reliable, easy to operate, improve battery core Joining Technology.
Description
Technical field
The invention belongs to battery technology field more particularly to a kind of cell polar ear attachment devices and battery pack.
Background technology
Currently, country vigorously supports new-energy automobile, it is big to dynamic lithium battery demand.Soft package lithium ion power battery
Quality is small, energy density is high, the advantages such as at low cost because having, and is applied to energy storage base station, charging station, electricity after the assembling that has been modular
The fields such as motor-car.Soft package lithium ion power battery includes mainly aluminum plastic film flexible package lithium cell and special-shaped flexible package lithium cell.
Traditional modularization assembling refers to that multiple flexible packaged battery core connection in series-parallel are formed lithium battery group.
The matrix thickness of soft package lithium ion power battery is smaller, and lug is usually the preferable metal foil of electric conductivity
Piece, such as copper sheet, aluminium flake and nickel sheet.The connection in series-parallel of soft package lithium ion power battery is by the way that cell polar ear to be overlapped mutually
Afterwards, it is attached by modes such as laser welding, ultrasonic bonding or scolding tin.Be welded to connect with connection reliable, stable structure,
The advantages that high degree of automation, still, with but there are many problems in the connection of cell polar ear, such as：
1) it is excessively high to easily cause lug surface temperature for soldering, and due to heat transfer process, the temperature inside lithium cell
Also it can increase, decline so as to cause the cycle performance and stability of battery core；
2) laser welding and ultrasonic bonding belong to irreversible welding, not removable after welding, therefore work as lithium battery group
After coming into operation, even if finding some lithium cell therein there are performance difference or can not be to asking if being unable to normal use
The lithium cell of topic is replaced, and can only be allowed to influence the normal use of other lithium cells in battery pack, until leading to entire battery
Group is scrapped, this can undoubtedly cause the waste of resource, while also increase use cost；
3) thickness of soft package lithium ion power battery is smaller, the spacing of lug and lug also very little, it is difficult to meet sharp
Photocoagulation and the required space of ultrasonic bonding, this not only gives welding operation to make troubles, but also cell polar ear is also easy to
It is damaged when welding.
The flexible packaging power battery battery core lug connection type that people often mentioned do not handled through the above way, Duo Shuowei
Simple gun iron link structure, because the metal of unlike material is with variation of ambient temperature, deflection is inconsistent etc., cell polar ear can be made
Pressing force not enough loosens, and causes poor contact, resistance value bigger than normal, so in actual production, seldom installs and uses or root
It can not possibly be used on this.
Invention content
The purpose of the present invention is to provide a kind of cell polar ear attachment device and battery packs, it is intended to solve in the prior art
Battery pole ear pressing force will not factors change and cell polar ear is caused to loosen, connect with variation of ambient temperature, deflection be inconsistent etc.
Touch bad technical problem.
To achieve the above object, the technical solution adopted by the present invention is：A kind of cell polar ear attachment device, including plastic housing
Body, metallic conduction plate and at least one elastic component, the plastic casing are equipped with installation cavity, and each elastic component is installed on the peace
For supporting cell polar ear, it is interior and solid with the plastic casing that the metallic conduction plate is set to the installation cavity for the bottom behaveing affectedly
Fixed connection, and the metallic conduction plate is located at the top of each elastic component for compressing the cell polar ear in each bullet
On property part.
Further, the both ends edge of the metallic conduction plate length direction is stretched equipped with mounting portion, the installation cavity and two institutes
The corresponding position of mounting portion is stated equipped with the mounting groove for accommodating the mounting portion.
Further, the cell polar ear attachment device further includes rubber bullet part, and the rubber bullet part is installed on the peace
In tankage and under the mounting portion.
Further, the cell polar ear attachment device further includes epoxy resin board, and the epoxy resin board is installed on institute
State the bottom of installation cavity and under each elastic component.
Further, the cell polar ear attachment device further includes shape gold compatible with the shape of the cell polar ear
Belong to piece, the sheet metal is installed in the installation cavity and between the elastic component and the cell polar ear, the metal
The clamping gap for the cell polar ear to be clamped, the cell polar ear are formed between the upper surface of piece and the metallic conduction plate
Between the clamping gap.
Further, the upper surface of the sheet metal is equipped with primary sinusoid shape face, the lower surface of the metallic conduction plate
Equipped with matched second sinusoidal waveform in sinusoidal waveform face face.
Further, each elastic component is spring, offers several spring eyes on the sheet metal, each spring is equal
It is installed in the corresponding spring eye.
Further, the thickness of the sheet metal is 2mm~4mm, and the thickness of the metallic conduction plate is 2mm~4mm.
Further, the cell polar ear attachment device further includes fastener, and via is offered on the mounting portion, described
The position that plastic casing corresponds to the mounting groove offers fastener hole, and the fastener passes through the via to be locked with the fastener hole
It is close to and connects so that the metallic conduction plate is fixedly connected with the plastic casing.
Beneficial effects of the present invention：Elastic component, is installed on the peace of plastic casing by the cell polar ear attachment device of the present invention
In behaveing affectedly, cell polar ear is then placed on the upper surface of elastic component, metallic conduction plate is finally mounted on the upper surface of cell polar ear, together
When metallic conduction plate be in contact with cell polar ear.In this way, the elastic component positioned at lower part is made by the installing force of metallic conduction plate
With in compressive state, the elastic force that elastic component generates is pushed the cell polar ear above elastic component to metallic conduction plate, is made
It obtains to contact between metallic conduction plate and cell polar ear and becomes Elastic Contact.So, when temperature change so that the deflection hair of component
When changing, the elastic force that elastic component generates can and then change so that metallic conduction plate keeps reliable with cell polar ear always
Contact.The cell polar ear attachment device stable connection of the present invention, conduction are reliable, easy to operate, improve battery core Joining Technology.
Another technical solution that the present invention uses is：A kind of battery pack, including above-mentioned cell polar ear attachment device.
Beneficial effects of the present invention：The battery pack of the present invention passes through due to the use of there is above-mentioned cell polar ear attachment device
The modes such as resilient clamp, protection, the locking of cell polar ear attachment device realize that cell polar ear and the elasticity of metallic conduction plate connect
It connects so that perfect heat-dissipating, stable connection, the conduction of battery pack of the invention are reliable, easy to operate, improve flexible packaging power
The craftsmanship of battery core connection, conveniently and efficiently can dismantle and replace any one power battery core, and it is dynamic to substantially increase flexible package
The operation and maintenance performance of power battery pack, reduces the use cost of battery pack.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment for those of ordinary skill in the art without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the structural schematic diagram of cell polar ear attachment device provided in an embodiment of the present invention.
Fig. 2 is the explosive view of cell polar ear attachment device provided in an embodiment of the present invention.
Fig. 3 is the structural schematic diagram of the metallic conduction plate of cell polar ear attachment device provided in an embodiment of the present invention.
Fig. 4 is the structural schematic diagram that cell polar ear attachment device provided in an embodiment of the present invention connects two cell polar ears.
Wherein, each reference numeral in figure：
10-plastic casing 11-installation cavity, 12-mounting grooves
20-metallic conduction plate the 22-the second sinusoidal waveform of 21-mounting portion faces
23-interconnecting piece 30-elastic component, 40-cell polar ears
50-rubber bullet part 51-hollow hole, 60-epoxy resin boards
61-fixed part 62-perforating, 70-sheet metals
71-primary sinusoid shape faces 72-spring eye, 73-clamping portion
74-clamping portion 80-fastener, 211-vias.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment that Fig. 1~4 is described is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the present invention
System.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
As shown in figures 1-4, an embodiment of the present invention provides a kind of cell polar ear attachment devices, including plastic casing 10, gold
Belong to conductive plate 20 and at least one elastic component 30, the plastic casing 10 is equipped with installation cavity 11, and each elastic component 30 is installed on
The bottom of the installation cavity 11 for support cell polar ear 40, the metallic conduction plate 20 be set to the installation cavity 11 in and with
The plastic casing 10 is fixedly connected, and the metallic conduction plate 20 is located at the top of each elastic component 30 for compressing
Cell polar ear 40 is stated on each elastic component 30.Specifically, the cell polar ear attachment device in the embodiment of the present invention, will be elastic
Part 30 is installed in the installation cavity 11 of plastic casing 10, and cell polar ear 40 is then placed on the upper surface of elastic component 30, finally will be golden
Belong to conductive plate 20 and be mounted on the upper surface of cell polar ear 40, while metallic conduction plate 20 is in contact with cell polar ear 40.In this way, being located at
The elastic component 30 of lower part is in compressive state, the elastic force that elastic component 30 generates by the effect of the installing force of metallic conduction plate 20
Push the cell polar ear 40 above elastic component 30 to metallic conduction plate 20 so that metallic conduction plate 20 and cell polar ear 40 it
Indirect thixotroping is Elastic Contact.So, when temperature change is so that the deflection of component changes, the bullet of the generation of elastic component 30
Property power can and then change so that metallic conduction plate 20 always with cell polar ear 40 holding reliably contact.In the embodiment of the present invention
Cell polar ear attachment device stable connection, conductive reliable, easy to operate, the technique for improving the connection of flexible packaging power battery core
Property, any one power battery core conveniently and efficiently can be dismantled and be replaced, the use of flexible packaging power battery pack is substantially increased
And maintainability.
Preferably, the quantity of elastic component 30 is three, and three elastic components 30 are equal along the length direction interval of installation cavity 11
Even arrangement.
Certainly, in other embodiments, the quantity of elastic component 30 can be two, four or four or more, according to peace
11 length of behaveing affectedly chooses an appropriate number of elastic component 30 to ensure that the stationarity for supporting dessert lug 40 is more preferable.
In the present embodiment, as shown in fig.2, the both ends edge of 20 length direction of metallic conduction plate is stretched equipped with mounting portion
21, the position corresponding with two mounting portions 21 of the installation cavity 11 is equipped with the mounting groove 12 for accommodating the mounting portion 21.
Specifically, the mounting portion 21 of metallic conduction plate 20 is installed in mounting groove 12, and mounting groove 12 can play a left side to metallic conduction piece
The effect of right protection and limit can so ensure that the position after metallic conduction plate 20 is installed is stablized, be not susceptible to displacement；To
Ensure the stability that metallic conduction plate 20 works, and then promotes the reliability of entire cell polar ear attachment device.
In the present embodiment, as shown in fig.2, the cell polar ear attachment device further includes fastener 80, the mounting portion
Via 211 is offered on 21, the position that the plastic casing 10 corresponds to the mounting groove 12 offers fastener hole (not shown), institute
It is described the metallic conduction plate 20 to be fixedly connected with fastener hole locking connection across the via 211 to state fastener 80
Plastic casing 10.Specifically, fastener 80 is screw or bolt etc., and metal is passed through as fastener 80 using screw or bolt
The components such as conductive plate 20 are threadedly coupled with fastener hole, not only may insure having good stability after connection.Also, screw or spiral shell
Bolt is simple and convenient when carrying out locking operation, and installation footprint is smaller, will not lead to cell polar ear because of space interference
40 is impaired；Meanwhile but also in the embodiment of the present invention cell polar ear attachment device dismounting it is more convenient, be detachably connected so that
The replacement of battery core becomes simple and fast, improves the operation and maintenance performance of battery pack, avoids existing battery pack and is welded to connect
After the drawbacks of lithium cell cannot being replaced, can only integrally being scrapped after going wrong, cost is greatly saved.
Preferably, embedded nut is equipped in fastener hole, embedded nut is integrally formed with plastic casing 10.Screw and bolt with
The threaded connection of embedded nut is more reliable, and dismounting is more reliable, is not in the case where plastic casing 10 damages.
In the present embodiment, as shown in fig.2, the cell polar ear attachment device further includes rubber bullet part 50, the rubber
Bullet part 50 is installed in the mounting groove 12 and under the mounting portion 21.Specifically, using the elasticity of rubber bullet part 50,
The fixation force effect for mitigating buffer metal conductive plate 20 is played, cell polar ear is protected using 50 compression limit thickness of rubber bullet part
40, the fixed force of metallic conduction plate 20 damages cell polar ear 40 when anti-assembly；Using the elasticity of rubber bullet part 50, can also play anti-
The effect that only fastener 80 loosens.
Further, rubber bullet part 50 offers the hollow hole 51 worn for fastener 80.Fastener 80 passes through via 211
It is threadedly coupled with plastic casing 10 with after the hollow hole 51 on rubber bullet part 50, rubber bullet part 50 and metallic conduction plate 20 is fixed
In plastic casing 10.
Further, refering to shown in Fig. 2 and Fig. 4, the top of metallic conduction plate 20 is equipped with the connection being connect with power cable
Portion 23, interconnecting piece 23 can be that either screw hole bolt or screw hole are mainly used for the power electrics of fixing different types to bolt
Cable improves the versatility of the cell polar ear attachment device in the embodiment of the present invention.
In the present embodiment, as shown in fig.2, the cell polar ear attachment device further includes epoxy resin board 60, the ring
Oxygen resin plate 60 is installed on the bottom of the installation cavity 11 and under each elastic component 30.Specifically, epoxy resin will
The heat that cell polar ear 40 conducts is separated with plastic casing 10, and protecting flexible package plastic casing 10, thermal radiation does not influence, and improves
The service life of plastic casing 10.40 installation dimension of cell polar ear can also be adjusted by increasing and decreasing the quantity of epoxy resin board 60
Position.
Further, along stretching equipped with fixed part 61, fixed part 61 is connected at the both ends of the length direction of epoxy resin board 60
In mounting groove 12.Mounting groove 12 can play the role of epoxy resin board 60 left and right protection and limit.
Further, 61 it is equipped with perforating 62 on fixed part, fastener 80 consolidates epoxy resin board 60 across perforating 62
It is scheduled on plastic casing 10.
In the present embodiment, as shown in fig.2, the cell polar ear attachment device further includes shape and the cell polar ear 40
The compatible sheet metal 70 of shape, the sheet metal 70 is installed in the installation cavity 11 and is located at the elastic component 30 and institute
Between stating cell polar ear 40, formed between the upper surface of the sheet metal 70 and the metallic conduction plate 20 for the electricity to be clamped
The clamping gap of core lug 40, the cell polar ear 40 is between the clamping gap.Specifically, sheet metal 70 is mainly used
In supporting and fixing cell polar ear 40, cell polar ear 40 is avoided to be in direct contact with elastic component 30.When elastic component 30 deforms, drive
The deformation of cell polar ear 40, to influence the conductive capability of cell polar ear 40.Pass through the folder of sheet metal 70 and metallic conduction plate 20
Cell polar ear 40 is fixed in the effect of holding, and cell polar ear 40 is avoided to be damaged by external active force.
Further, along stretching equipped with clamping portion 73, clamping portion 73 is connected in installation at the both ends of the length direction of sheet metal 70
In slot 12.Mounting groove 12 can play the role of sheet metal 70 left and right protection and limit.
Further, clamping portion 73 is equipped with through-hole 74, and sheet metal 70 is fixed on plastics by fastener 80 across through-hole 74
Shell 10.
Further, rubber bullet part 50 can be installed between clamping portion 73 and mounting portion 21, be used for metal when anti-assembly
The fixed force of conductive plate 20 damages cell polar ear 40.
Further, as shown in fig.4, multiple cell polar ears can be clamped between sheet metal 70 and metallic conduction plate 20
40.Wherein 40 lamination of cell polar ear is placed.
In the present embodiment, shown in Fig. 2 and Fig. 3, the upper surface of the sheet metal 70 is equipped with primary sinusoid shape face 71,
The lower surface of the metallic conduction plate 20 is equipped with and matched second sinusoidal waveform in sinusoidal waveform face face 22.Specifically,
The second sinusoidal waveform face 22 in sheet metal 70 primary sinusoid shape face 71 and metallic conduction plate 20, when contact, can mutually be combined,
A part for cell polar ear 40 is set to be clamped between " sine wave " the shape face that these are harmonious each other, cell polar ear 40 is molded naturally
Therebetween, injury-free, it is contact surface bigger, more reliable.
Certainly, in other embodiments, the upper surface of sheet metal 70 and the lower surface of metallic conduction plate 20 all can be phases
The shapes such as cambered surface, plane, the serrated face of adaptation are to ensure that cell polar ear 40 can steadily be clamped in sheet metal 70 and metal is led
Between battery plate 20.
In the present embodiment, as shown in fig.2, each elastic component 30 is spring, offered on the sheet metal 70 several
Spring eye 72, each spring are mounted in the corresponding spring eye 72.Specifically, spring is installed in spring eye 72,
Spring can be fixed so that the elastic force of spring, which can be stablized, pushes cell polar ear 40 to metallic conduction plate 20, preferably protects
Card lug is well contacted with metallic conduction plate 20.
Preferably, spring is coil type spring.
In the present embodiment, as shown in fig.2, the thickness of the sheet metal 70 is 2mm~4mm, the metallic conduction plate 20
Thickness be 2mm~4mm.Specifically, the thickness of sheet metal 70 can be 2mm, 2.5mm, 3mm, 3.5mm and 4mm, metallic conduction
The thickness of plate 20 can be 2mm, 2.5mm, 3mm, 3.5mm and 4mm.If the thickness to sheet metal 70 and metallic conduction plate 20 is arranged
It is too small, then sheet metal 70 cannot play the role of supporting cell polar ear 40, and metallic conduction plate 20 is connected with power cable
Because insufficient strength is easily damaged when connecing, increase the cost of battery.If the thickness of sheet metal 70 and metallic conduction plate 20 is arranged
It is excessive, the waste of metal material can be caused, the volume and weight of battery is increased, while the cost for also resulting in battery is excessively high.
The embodiment of the present invention additionally provides a kind of battery pack, including above-mentioned cell polar ear attachment device.Specifically, this hair
Battery pack in bright embodiment passes through the bullet of cell polar ear attachment device due to the use of there is above-mentioned cell polar ear attachment device
Property clamping, protection, locking etc. modes, realize cell polar ear 40 and metallic conduction plate 20 elastic connection so that the present invention implementation
Perfect heat-dissipating, stable connection, the conduction of battery pack in example are reliable, easy to operate, improve the connection of flexible packaging power battery core
Craftsmanship, conveniently and efficiently can dismantle and replace any one power battery core, substantially increase flexible packaging power battery pack
Operation and maintenance performance, reduce the use cost of battery pack.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of cell polar ear attachment device, it is characterised in that：Including plastic casing, metallic conduction plate and at least one elasticity
Part, the plastic casing are equipped with installation cavity, and each elastic component is installed on the bottom of the installation cavity for support battery core pole
Ear, the metallic conduction plate is set in the installation cavity and is fixedly connected with the plastic casing, and metallic conduction plate position
In the top of each elastic component for compressing the cell polar ear on each elastic component.
2. cell polar ear attachment device according to claim 1, it is characterised in that：The metallic conduction plate length direction
Both ends are along stretching equipped with mounting portion, and installation cavity position corresponding with two mounting portions is equipped with for accommodating the mounting portion
Mounting groove.
3. cell polar ear attachment device according to claim 2, it is characterised in that：The cell polar ear attachment device is also wrapped
Rubber bullet part is included, the rubber bullet part is installed in the mounting groove and under the mounting portion.
4. cell polar ear attachment device according to claim 1, it is characterised in that：The cell polar ear attachment device is also wrapped
Epoxy resin board is included, the epoxy resin board is installed on the bottom of the installation cavity and under each elastic component.
5. according to Claims 1 to 4 any one of them cell polar ear attachment device, it is characterised in that：The cell polar ear connects
Connection device further includes shape sheet metal compatible with the shape of the cell polar ear, and the sheet metal is installed on the installation cavity
It is interior and between the elastic component and the cell polar ear, shape between the upper surface of the sheet metal and the metallic conduction plate
At the clamping gap for the cell polar ear to be clamped, the cell polar ear is between the clamping gap.
6. cell polar ear attachment device according to claim 5, it is characterised in that：The upper surface of the sheet metal is equipped with the
The lower surface in one sinusoidal waveform face, the metallic conduction plate is equipped with and matched second sinusoidal waveform in the sinusoidal waveform face
Face.
7. cell polar ear attachment device according to claim 5, it is characterised in that：Each elastic component is spring, described
Several spring eyes are offered on sheet metal, each spring is mounted in the corresponding spring eye.
8. cell polar ear attachment device according to claim 5, it is characterised in that：The thickness of the sheet metal be 2mm~
The thickness of 4mm, the metallic conduction plate are 2mm~4mm.
9. according to Claims 1 to 4 any one of them cell polar ear attachment device, it is characterised in that：The cell polar ear connects
Connection device further includes fastener, and via is offered on the mounting portion, and the position that the plastic casing corresponds to the mounting groove is opened
Equipped with fastener hole, the fastener passes through the via to be connected with fastener hole locking to connect metallic conduction plate fixation
Connect the plastic casing.
10. a kind of battery pack, it is characterised in that：Including claim 1~9 any one of them cell polar ear attachment device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383169.XA CN108288687A (en) | 2017-12-20 | 2017-12-20 | Cell polar ear attachment device and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383169.XA CN108288687A (en) | 2017-12-20 | 2017-12-20 | Cell polar ear attachment device and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108288687A true CN108288687A (en) | 2018-07-17 |
Family
ID=62832072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711383169.XA Pending CN108288687A (en) | 2017-12-20 | 2017-12-20 | Cell polar ear attachment device and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108288687A (en) |
Cited By (1)
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|---|---|---|---|---|
| CN115498369A (en) * | 2022-11-18 | 2022-12-20 | 苏州清研精准汽车科技有限公司 | Conductive connecting device |
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