CN207743303U - Cell polar ear attachment device and battery pack - Google Patents
Cell polar ear attachment device and battery pack Download PDFInfo
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- CN207743303U CN207743303U CN201721797251.2U CN201721797251U CN207743303U CN 207743303 U CN207743303 U CN 207743303U CN 201721797251 U CN201721797251 U CN 201721797251U CN 207743303 U CN207743303 U CN 207743303U
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- cell polar
- polar ear
- attachment device
- metallic conduction
- conduction plate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model belongs to battery technology field, 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 utility model, conduction are reliable, easy to operate, improve battery core Joining Technology.
Description
Technical field
The utility model belongs to battery technology field more particularly to a kind of cell polar ear attachment device 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.
Utility model content
The purpose of this utility model is to provide a kind of cell polar ear attachment device and battery packs, it is intended to solve the prior art
In battery pole ear pressing force will not factors change and cause cell polar ear loose with variation of ambient temperature, deflection be inconsistent etc.
The technical issues of de-, poor contact.
To achieve the above object, the technical solution adopted in the utility model is：A kind of cell polar ear attachment device, including modeling
Material shell 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 institute
State the bottom of installation cavity for support cell polar ear, the metallic conduction plate be set to the installation cavity in and with the plastic housing
Body is fixedly connected, and the metallic conduction plate is located at the top of each elastic component for compressing the cell polar ear in each institute
It states on elastic component.
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.
The beneficial effects of the utility model：The cell polar ear attachment device of the utility model, plastics are installed on by elastic component
In the installation cavity of shell, cell polar ear is then placed on the upper surface of elastic component, metallic conduction plate is finally mounted on cell polar ear
The upper surface of, while metallic conduction plate is in contact with cell polar ear.In this way, the elastic component positioned at lower part is pacified by metallic conduction plate
The effect of dress power is in compressive state, and the elastic force that elastic component generates is pushed the cell polar ear above elastic component to metal and led
Battery plate so that being contacted between metallic conduction plate and cell polar ear becomes Elastic Contact.So, when temperature change so that the change of component
When shape amount changes, the elastic force that elastic component generates can and then change so that metallic conduction plate is kept with cell polar ear always
Reliable contact.The cell polar ear attachment device stable connection of the utility model, conduction are reliable, easy to operate, improve battery core
Joining Technology.
The utility model use another technical solution be：A kind of battery pack, including above-mentioned cell polar ear attachment device.
The beneficial effects of the utility model：The battery pack of the utility model, due to the use of there is above-mentioned cell polar ear connection
Device realizes cell polar ear and metallic conduction plate by modes such as the resilient clamp of cell polar ear attachment device, protection, lockings
Elastic connection so that it is the perfect heat-dissipating of the battery pack of the utility model, stable connection, conductive reliable, easy to operate, improve
The craftsmanship of flexible packaging power battery core connection, conveniently and efficiently can dismantle and replace any one power battery core, carry significantly
The high operation and maintenance performance of flexible packaging power battery pack, reduces the use cost of battery pack.
Description of the drawings
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this practicality is new
Some embodiments of type for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram for the cell polar ear attachment device that the utility model embodiment provides.
Fig. 2 is the explosive view for the cell polar ear attachment device that the utility model embodiment provides.
Fig. 3 is the structural schematic diagram of the metallic conduction plate for the cell polar ear attachment device that the utility model embodiment provides.
Fig. 4 is the structural representation that the cell polar ear attachment device that the utility model embodiment provides connects two cell polar ears
Figure.
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 embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining the description of attached drawing 1~4 is exemplary, it is intended to for explaining the utility model, and should not be understood as to this practicality
Novel limitation.
In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indicates or imply
Signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to this
The limitation of utility model.
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.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be
Mechanical connection can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
As shown in figures 1-4, the utility model embodiment provides a kind of cell polar ear attachment device, including plastic casing
10, metallic conduction plate 20 and at least one elastic component 30, the plastic casing 10 are equipped with installation cavity 11, and each elastic component 30 is pacified
Bottom loaded on the installation cavity 11 is for supporting cell polar ear 40, and the metallic conduction plate 20 is in the installation cavity 11
And be fixedly connected with the plastic casing 10, and the metallic conduction plate 20 is located at the top of each elastic component 30 for supporting
Press the cell polar ear 40 on each elastic component 30.Specifically, the cell polar ear connection dress in the utility model embodiment
It sets, elastic component 30 is installed in the installation cavity 11 of plastic casing 10, cell polar ear 40 is then placed on the upper surface of elastic component 30,
Metallic conduction plate 20 is finally 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, the elastic component 30 positioned at lower part is in compressive state by the effect of the installing force of metallic conduction plate 20, elastic component 30 produces
Raw elastic force pushes the cell polar ear 40 above elastic component 30 to metallic conduction plate 20 so that metallic conduction plate 20 and electricity
Contact becomes Elastic Contact between core lug 40.So, when temperature change is so that the deflection of component changes, elastic component
30 elastic forces generated can and then change so that metallic conduction plate 20 is reliably contacted with the holding of cell polar ear 40 always.This reality
It is reliable, easy to operate with the cell polar ear attachment device stable connection in new embodiment, conduction, improve flexible packaging power electricity
The craftsmanship of core connection, conveniently and efficiently can dismantle and replace any one power battery core, substantially increase flexible packaging power
The operation and maintenance performance of battery pack.
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 utility model embodiment cell polar ear attachment device dismounting it is more convenient, be detachably connected
So that the replacement of battery core becomes simple and fast, the operation and maintenance performance of battery pack is improved, avoids existing battery group welding
The drawbacks of cannot replacing to lithium cell after connection, 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 utility model embodiment.
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 utility model embodiment additionally provides a kind of battery pack, including above-mentioned cell polar ear attachment device.Specifically,
Battery pack in the utility model embodiment is connected due to the use of there is above-mentioned cell polar ear attachment device by cell polar ear
The modes such as resilient clamp, protection, the locking of device realize the elastic connection of cell polar ear 40 and metallic conduction plate 20 so that this
Perfect heat-dissipating, stable connection, the conduction of battery pack in utility model embodiment are reliable, easy to operate, improve flexible package
The craftsmanship of power battery core connection, conveniently and efficiently can dismantle and replace any one power battery core, substantially increase Soft Roll
The operation and maintenance performance for filling power battery pack, reduces the use cost of battery pack.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
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. cell polar ear attachment device according to claim 2, it is characterised in that：The cell polar ear attachment device is also wrapped
Fastener is included, via is offered on the mounting portion, the position that the plastic casing corresponds to the mounting groove offers fastener hole,
The fastener passes through the via with fastener hole locking connection the metallic conduction plate is fixedly connected with the plastics
Shell.
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 |
|---|---|---|---|
| CN201721797251.2U CN207743303U (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 |
|---|---|---|---|
| CN201721797251.2U CN207743303U (en) | 2017-12-20 | 2017-12-20 | Cell polar ear attachment device and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207743303U true CN207743303U (en) | 2018-08-17 |
Family
ID=63119049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721797251.2U Active CN207743303U (en) | 2017-12-20 | 2017-12-20 | Cell polar ear attachment device and battery pack |
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| Country | Link |
|---|---|
| CN (1) | CN207743303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288687A (en) * | 2017-12-20 | 2018-07-17 | 安徽信义电源有限公司 | Cell polar ear attachment device and battery pack |
-
2017
- 2017-12-20 CN CN201721797251.2U patent/CN207743303U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288687A (en) * | 2017-12-20 | 2018-07-17 | 安徽信义电源有限公司 | Cell polar ear attachment device and battery pack |
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