CN107658943A - Cylindric polytypic battery charger and portable power source - Google Patents
Cylindric polytypic battery charger and portable power source Download PDFInfo
- Publication number
- CN107658943A CN107658943A CN201711043366.7A CN201711043366A CN107658943A CN 107658943 A CN107658943 A CN 107658943A CN 201711043366 A CN201711043366 A CN 201711043366A CN 107658943 A CN107658943 A CN 107658943A
- Authority
- CN
- China
- Prior art keywords
- bearing bracket
- power source
- cylindrical body
- rear end
- portable power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007599 discharging Methods 0.000 claims abstract description 11
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 16
- 229910001416 lithium ion Inorganic materials 0.000 claims description 16
- 208000004141 microcephaly Diseases 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 14
- 238000011900 installation process Methods 0.000 description 11
- 230000005611 electricity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
-
- H02J7/0003—
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention relates to cylindric the polytypic battery charger and portable power source of a kind of portable power source, more particularly to a kind of replaceable different model battery.Drive end bearing bracket including cylindrical body, positioned at cylindrical body front end and the rear end cap positioned at cylindrical body rear end；Management of charging and discharging circuit is provided with drive end bearing bracket；Also include positive pole latch plate, positive pole spring, negative spring and the N number of circle placed in the middle being coaxially disposed inside drive end bearing bracket, cylindrical body and rear end cap and with cylindrical body；Wherein N is more than or equal to 1；Positive pole latch plate is fixed in drive end bearing bracket, and positive pole latch plate side is connected with management of charging and discharging circuit, and opposite side is connected with positive pole spring；Negative spring is fixed on rear end cap；The internal diameter enclosed between two parties is more than the diameter of first object battery, less than the diameter of other target batteries；Solve the problems, such as that existing charger or portable power source can not be applied to different model battery well.
Description
Technical field
The present invention relates to the cylindric polytypic electricity of a kind of portable power source, more particularly to a kind of replaceable different model battery
Electrolytic battery charger and portable power source.
Background technology
Universal Large Copacity rechargeable lithium ion batteries are 18650 lithium ion batteries and 26650 lithium ions on the market now
Battery, there is corresponding special charger for this two battery, also there is the general charger of two battery, but because of its two kinds of electricity
Pond diameter has very big difference, so when filling 18650 battery of diameter dot in general charger, it may appear that loosen not
The problem of even loose contact placed in the middle.A sleeve is individually added to solve 18650 problems placed in the middle for this problem Ye You producers, but
More out individual parts thus be present, be easily lost.
There is part charger with electric discharge output function, you can be used as portable power source, but such charger is general
All it is windowing charging, is used if discharged as portable power source, battery is not firm in neck to be simply fallen out.
Also part portable power source changes battery, but the battery core that such portable power source uses is mostly 18650, and be
Single battery core, when lithium-ion electric core is met under low temperature condition, battery capacity and life-span can decline to a great extent, and shell is mostly plastics material
Matter, without good explosion-proof.
The content of the invention
In order to solve the problems, such as that existing charger or portable power source can not be applied to different model battery, this hair well
The bright cylindric polytypic battery charger and portable power source, the portable power source of providing can also use as charger.
The technical solution of the present invention is to provide a kind of cylindric polytypic battery charger and portable power source, and its is special
Part is：Drive end bearing bracket 1 including cylindrical body 5, positioned at the front end of cylindrical body 5 and the rear end cap positioned at the rear end of cylindrical body 5
9；
Management of charging and discharging circuit 2 is provided with above-mentioned drive end bearing bracket 1；
Also include positioned at drive end bearing bracket 1, cylindrical body 5 and the inside of rear end cap 9 and the positive pole bullet being coaxially disposed with cylindrical body 5
Spring plank 3, positive pole spring 4, negative spring 8 and N number of circle 7 placed in the middle；Wherein N is more than or equal to 1；
Above-mentioned positive pole latch plate 3 is fixed in drive end bearing bracket 1, and the side of positive pole latch plate 3 is connected with management of charging and discharging circuit 2,
Opposite side is connected with positive pole spring 4；
Above-mentioned negative spring 8 is fixed on rear end cap 9；
The internal diameter of above-mentioned circle 7 placed in the middle is more than the diameter of first object battery, less than the diameter of other target batteries, when placed in the middle
When circle 7 is one, circle 7 placed in the middle is connected by limit spring 6 with drive end bearing bracket 1 or rear end cap 9；When the quantity of circle 7 placed in the middle is more than one
When individual, each circle 7 placed in the middle is connected with drive end bearing bracket 1 and rear end cap 9 respectively by limit spring 6.
Preferably, annular slot 10b is circumferentially with along the madial wall of drive end bearing bracket 1, above-mentioned positive pole latch plate 3 is arranged on the annular
In neck 10b.
Preferably, above-mentioned circle 7 placed in the middle is two, and above-mentioned circle 7 placed in the middle is T-shaped circle.
Preferably, when circle 7 placed in the middle is connected by limit spring 6 with drive end bearing bracket 1, cylindrical body 5 and the connection end of drive end bearing bracket 1
Place has annular slot 10c, and the major part of above-mentioned limit spring 6 is fixed in annular slot 10c；Along the lateral wall week of T-shaped circle
To annular slot 10d is offered, the microcephaly of above-mentioned limit spring 6 is caught in above-mentioned annular slot 10d.
Preferably, when circle 7 placed in the middle is connected by limit spring 6 with rear end cap 9, circumferentially offered along the side wall of T-shaped circle
Annular slot 10d, the microcephaly of above-mentioned limit spring 6 are caught in above-mentioned annular groove 10d, madial wall last week of above-mentioned rear end cap 9
It is caught in the major part provided with annular slot 10e, limit spring 6 in above-mentioned annular slot 10e.
Preferably, the above-mentioned inwall of drive end bearing bracket 1 has neck 10a, before above-mentioned management of charging and discharging circuit 2 is fixed on by neck
In end cap 1；Above-mentioned positive pole spring 4 is welded on positive pole latch plate 3；The above-mentioned bottom of rear end cap 9 has blind hole 11, above-mentioned negative pole bullet
In the force fit blind hole 11 of spring 8.
Preferably, above-mentioned drive end bearing bracket 1 and rear end cap 9 are connected with cylindrical body 5 threadably.
Preferably, the external diameter of circle 7 placed in the middle is slightly less than the internal diameter of cylindrical body 5 so that encloses between two parties stable in stack shell；Above-mentioned cylinder
The material of shape main body 5, drive end bearing bracket 1 and rear end cap 9 is metal, there is certain explosion-proof.
Preferably, above-mentioned first object battery can be 18650 lithium ion batteries；Other above-mentioned target batteries are 26650
Lithium ion battery；But it is not limited to both batteries.
Preferably, the present invention can also include the battery carrier inside cylindrical body 5, and 4 sections 7 can be used under low temperature environment
Battery externally exports electric discharge as portable power source.
The beneficial effects of the invention are as follows：
1st, the present invention does not need sleeve, and the fixation of different model battery can be achieved by enclosing between two parties, and battery can be well
Realize between two parties, and inside cavity can be reliably placed in very much after battery installation, do not fall out, realize quick charge and electric discharge；
2nd, present invention circle placed in the middle is integrated with cylindrical body 5, simple in construction, convenient use；
3rd, the present invention can give 18650 and 26650 batteries to charge, and can also be used as electricity by the use of 18650 and 26650 batteries
Core uses as portable power source；
4th, the present invention be cylindrical body, drive end bearing bracket, rear end cap be metal material, have certain explosion-proof；
5th, electric discharge can be externally exported as portable power source by the use of 4 No. 7 batteries of section under low temperature environment.
Brief description of the drawings
Fig. 1 is example structure schematic diagram；
Fig. 2 is example structure explosive view；
Fig. 3 a are installation process schematic diagram one；
Fig. 3 b are installation process schematic diagram two；
Fig. 3 c are installation process schematic diagram three；
Fig. 3 d are installation process schematic diagram four；
Fig. 3 e are installation process schematic diagram five；
Fig. 3 f are installation process schematic diagram six；
Fig. 3 g are installation process schematic diagram seven；
Fig. 3 h are installation process schematic diagram eight；
Fig. 3 i are installation process schematic diagram nine；
Fig. 3 j are installation process schematic diagram ten；
Fig. 4 a are the schematic diagram that embodiment fills 4 No. 7 batteries of section；
Fig. 4 b are the schematic diagram that embodiment fills 26650 batteries；
Fig. 4 c are the schematic diagram that embodiment fills 18650 batteries.
Reference is in figure：1- drive end bearing brackets, 2- management of charging and discharging circuits, 3- positive pole latch plates, 4- positive pole springs, 5- cylinders
Shape main body, 6- limit springs, 7- are enclosed between two parties, 8- negative springs, 9- rear end caps, 10a, 10b, 10c, 10d, 10e- neck, and 11- is blind
Hole.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Because universal Large Copacity rechargeable lithium ion batteries are 18650 lithium ion batteries and 26650 lithium ion batteries, consolidate
Embodiment is illustrated exemplified by it can make 18650 lithium ion batteries and the general portable power source of 26650 lithium ion batteries.At other
The quantity and size enclosed between two parties can be adjusted in embodiment according to the model and quantity of battery.
With reference to Fig. 1 and Fig. 2, the embodiment mainly includes drive end bearing bracket 1, cylindrical body 5 and rear end cap 9, drive end bearing bracket 1 and rear end
Lid 9 is arranged in cylindrical body 5 threadably；Also include management of charging and discharging circuit 2 and positioned at drive end bearing bracket 1, cylinder
Shape main body 5 and the inside of rear end cap 9 and the positive pole latch plate 3, positive pole spring 4, the negative spring 8, two that are coaxially disposed with cylindrical body 5
Individual circle 7 placed in the middle and two limit springs 6；The internal diameter of circle 7 wherein placed in the middle is slightly larger than the external diameter of 18650 lithium ion batteries so that
18650 lithium ion batteries can by but do not rock, the internal diameter of circle 7 placed in the middle is less than the external diameter of 26650 lithium ion batteries, circle placed in the middle
7 external diameter should enable circle 7 placed in the middle to stablize inside cylindrical body 5.
There is neck 10a in drive end bearing bracket 1, management of charging and discharging circuit 2 is fixed in neck 10a；Along the inner side of drive end bearing bracket 1
Wall circumferentially offers annular slot 10b, and positive pole latch plate 3 is caught in annular slot 10b, and causes its side and charge and discharge fulgurite
Reason circuit 2 contacts, and positive pole spring 4 is welded on the opposite side of positive pole latch plate 3.
Two circles 7 placed in the middle are fixed on inside cylindrical body 5 by limit spring 6, the major part point of two of which limit spring 6
It is not fixed at drive end bearing bracket 1 and at rear end cap 9, the microcephaly of limit spring 6 is fixed on circle 7 placed in the middle, specific such as Fig. 1, in front end
Lid 1 forms annular slot 10c, can be such as cylindrical body 5 and front end in figure with having space at the connection end of cylindrical body 5
The junction of lid 1 is step-like, when drive end bearing bracket 1 screws in cylindrical body 5, forms annular slot 10c, can also be by being other modes
Formed；The major part of one of limit spring 6 is caught in annular slot 10c；Circle 7 placed in the middle is T-shaped circle as depicted, along T
The lateral wall of type circle circumferentially offers annular slot 10d, and the microcephaly of the limit spring 6 is caught in annular slot 10d；Along rear end cap
9 madial wall circumferentially offers annular slot 10e, and the major part of another limit spring 6 is caught in annular slot 10e, small
Head is caught in the annular slot 10d of another circle 7 placed in the middle；The bottom of rear end cap 9 is provided with blind hole 11, the force fit of negative spring 8
In blind hole 11.
Be as shown in Figure 4 b using 26650 batteries, battery both ends contact after the compression of circle 7 limit springs 6 placed in the middle with flashlight
Both positive and negative polarity spring contact；When using 18650 battery, as illustrated in fig. 4 c, limit spring 6 is not affected by external force in the raw
18650 batteries normally contact with both positive and negative polarity spring between two parties when ejection encloses 7 between two parties.Without taking-up or loading zero when two kinds of batteries exchange
Part.
Under low temperature environment, coordinate the battery carrier of four No. 7 batteries of section, battery is placed on inside cylindrical body 5, battery carrier pressure
Contracting circle 7 placed in the middle, can four No. 7 batteries of section electric discharge is externally exported as portable power source, such as Fig. 4 a.
Specific installation process can combine Fig. 3 a to Fig. 3 j, first such as Fig. 3 a, and negative spring 8 is pressed into the blind hole of rear end cap 9
In 11, then such as Fig. 3 b, the major part of a limit spring 6 is caught in the annular slot 10e of the side wall of rear end cap 9, for another example Fig. 3 c,
One circle 7 placed in the middle is put into rear end cap 9 and causes the microcephaly of limit spring 6 is caught in enclose between two parties in the annular slot 10d on 7,
For another example Fig. 3 d, the microcephaly of another limit spring 6 is caught in the annular slot 10d of another circle 7 placed in the middle, for another example Fig. 3 e, by charge and discharge
Fulgurite reason circuit 2 is put into the neck 10a in drive end bearing bracket 1, and Fig. 3 f, the positive pole latch plate 3 for being welded with positive pole spring 4 is consolidated for another example
It is scheduled in the annular slot 10b of the madial wall of drive end bearing bracket 1, for another example Fig. 3 g, drive end bearing bracket 1 is screwed in cylindrical body 5, for another example Fig. 3 h,
The major part of another limit spring 6 is caught in the annular slot 10c between drive end bearing bracket 1 and cylindrical body 5, last such as Fig. 3 i will
Rear end cap 9, which screws in, completes the present embodiment in cylindrical body 5.
Claims (10)
1. a kind of cylindric polytypic battery charger and portable power source, it is characterised in that：Including cylindrical body (5), positioned at cylinder
The drive end bearing bracket (1) of shape main body (5) front end and the rear end cap (9) positioned at cylindrical body (5) rear end；
Management of charging and discharging circuit (2) is provided with the drive end bearing bracket (1)；
Also include internal positioned at drive end bearing bracket (1), cylindrical body (5) and rear end cap (9) and be coaxially disposed just with cylindrical body (5)
Pole latch plate (3), positive pole spring (4), negative spring (8) and N number of circle (7) placed in the middle；Wherein N is more than or equal to 1；
The positive pole latch plate (3) is fixed in drive end bearing bracket (1), and positive pole latch plate (3) side connects with management of charging and discharging circuit (2)
Connect, opposite side is connected with positive pole spring (4)；
The negative spring (8) is fixed on rear end cap (9)；
The internal diameter of the circle (7) placed in the middle is more than the diameter of first object battery, less than the diameter of other target batteries, when circle placed in the middle
(7) when being one, enclose (7) placed in the middle are connected by limit spring (6) with drive end bearing bracket (1) or rear end cap (9)；When circle (7) placed in the middle
When quantity is more than one, each circle (7) placed in the middle is connected with drive end bearing bracket (1) and rear end cap (9) respectively by limit spring (6).
2. cylindric polytypic battery charger according to claim 1 and portable power source, it is characterised in that：Along drive end bearing bracket
(1) madial wall is circumferentially with annular slot (10b), and the positive pole latch plate (3) is arranged in the annular slot (10b).
3. cylindric polytypic battery charger according to claim 2 and portable power source, it is characterised in that：It is described placed in the middle
It is two to enclose (7), and the circle (7) placed in the middle is T-shaped circle.
4. cylindric polytypic battery charger according to claim 3 and portable power source, it is characterised in that：When circle placed in the middle
(7) when being connected by limit spring (6) with drive end bearing bracket (1), cylindrical body (5) at drive end bearing bracket (1) connection end with having annular snap
Groove (10c), the major part of the limit spring (6) are fixed in the annular slot (10c)；Circumferentially opened up along the lateral wall of T-shaped circle
There is annular slot (10d), the microcephaly of the limit spring (6) is caught in the annular slot (10d).
5. cylindric polytypic battery charger according to claim 3 and portable power source, it is characterised in that：When circle placed in the middle
(7) when being connected by limit spring (6) with rear end cap (9), annular slot (10d) is circumferentially offered along the side wall of T-shaped circle, it is described
The microcephaly of limit spring (6) is caught in the annular groove (10d), and annular is circumferentially with the madial wall of the rear end cap (9)
Neck (10e), the major part of limit spring (6) are caught in the annular slot (10e).
6. according to claim 1-5 any described cylindric polytypic battery charger and portable power source, it is characterised in that：Institute
Stating drive end bearing bracket (1) inwall has neck (10a), and the management of charging and discharging circuit (2) is fixed in drive end bearing bracket (1) by neck；
The positive pole spring (4) is welded on positive pole latch plate (3)；Rear end cap (9) bottom has blind hole (11), the negative pole bullet
In spring (8) force fit blind hole (11).
7. cylindric polytypic battery charger according to claim 6 and portable power source, it is characterised in that：The front end
Lid (1) and rear end cap (9) are connected with cylindrical body (5) threadably.
8. cylindric polytypic battery charger according to claim 7 and portable power source, it is characterised in that：Circle placed in the middle
(7) external diameter is less than cylindrical body (5) internal diameter；The material of the cylindrical body (5), drive end bearing bracket (1) and rear end cap (9) is gold
Category.
9. cylindric polytypic battery charger according to claim 8 and portable power source, it is characterised in that：Described first
Target battery is 18650 lithium ion batteries；Other described target batteries are 26650 lithium ion batteries.
10. according to claim 1-5 any described cylindric polytypic battery charger and portable power source, it is characterised in that：
Also include positioned at the internal battery carrier of cylindrical body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711043366.7A CN107658943A (en) | 2017-10-31 | 2017-10-31 | Cylindric polytypic battery charger and portable power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711043366.7A CN107658943A (en) | 2017-10-31 | 2017-10-31 | Cylindric polytypic battery charger and portable power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107658943A true CN107658943A (en) | 2018-02-02 |
Family
ID=61096243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711043366.7A Pending CN107658943A (en) | 2017-10-31 | 2017-10-31 | Cylindric polytypic battery charger and portable power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107658943A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667106A (en) * | 2018-07-11 | 2018-10-16 | 商洛市虎之翼科技有限公司 | A kind of charge and discharge device adapting to different-diameter battery |
| CN109713180A (en) * | 2018-12-24 | 2019-05-03 | 长春市亿健科技有限公司 | A kind of electronic product battery connection structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177214A (en) * | 1996-04-26 | 1998-03-25 | 摩托罗拉公司 | Battery housing for different sized batteries |
| KR20110005879U (en) * | 2009-12-07 | 2011-06-15 | 김유호 | Length-adjustable charger |
| CN203099356U (en) * | 2013-01-09 | 2013-07-31 | 深圳市朗恒电子有限公司 | Flashlight with multiple models of batteries compatible |
| CN203115508U (en) * | 2012-09-29 | 2013-08-07 | 赵利民 | Electric torch |
| CN203691025U (en) * | 2014-02-11 | 2014-07-02 | 东莞市太业电子科技有限公司 | Multifunctional mobile power supply |
| CN204577495U (en) * | 2015-05-22 | 2015-08-19 | 宁波福泰电器有限公司 | Detachable battery frame |
| WO2016011853A1 (en) * | 2014-07-23 | 2016-01-28 | 惠州市金能源科技有限公司 | Novel, environmentally friendly, leak-proof and safe high-capacity battery |
| CN207542815U (en) * | 2017-10-31 | 2018-06-26 | 商洛市虎之翼科技有限公司 | Cylindric polytypic battery charger and mobile power |
-
2017
- 2017-10-31 CN CN201711043366.7A patent/CN107658943A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177214A (en) * | 1996-04-26 | 1998-03-25 | 摩托罗拉公司 | Battery housing for different sized batteries |
| KR20110005879U (en) * | 2009-12-07 | 2011-06-15 | 김유호 | Length-adjustable charger |
| CN203115508U (en) * | 2012-09-29 | 2013-08-07 | 赵利民 | Electric torch |
| CN203099356U (en) * | 2013-01-09 | 2013-07-31 | 深圳市朗恒电子有限公司 | Flashlight with multiple models of batteries compatible |
| CN203691025U (en) * | 2014-02-11 | 2014-07-02 | 东莞市太业电子科技有限公司 | Multifunctional mobile power supply |
| WO2016011853A1 (en) * | 2014-07-23 | 2016-01-28 | 惠州市金能源科技有限公司 | Novel, environmentally friendly, leak-proof and safe high-capacity battery |
| CN204577495U (en) * | 2015-05-22 | 2015-08-19 | 宁波福泰电器有限公司 | Detachable battery frame |
| CN207542815U (en) * | 2017-10-31 | 2018-06-26 | 商洛市虎之翼科技有限公司 | Cylindric polytypic battery charger and mobile power |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667106A (en) * | 2018-07-11 | 2018-10-16 | 商洛市虎之翼科技有限公司 | A kind of charge and discharge device adapting to different-diameter battery |
| CN108667106B (en) * | 2018-07-11 | 2024-01-26 | 商洛市虎之翼科技有限公司 | Charging and discharging device suitable for batteries with different diameters |
| CN109713180A (en) * | 2018-12-24 | 2019-05-03 | 长春市亿健科技有限公司 | A kind of electronic product battery connection structure |
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