CN206820057U - A kind of positive and negative electrodes in same with protection circuit is to drawing lithium ion battery and battery pack - Google Patents
A kind of positive and negative electrodes in same with protection circuit is to drawing lithium ion battery and battery pack Download PDFInfo
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- CN206820057U CN206820057U CN201720569883.7U CN201720569883U CN206820057U CN 206820057 U CN206820057 U CN 206820057U CN 201720569883 U CN201720569883 U CN 201720569883U CN 206820057 U CN206820057 U CN 206820057U
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- battery
- positive pole
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- pin
- protection circuit
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
A kind of positive and negative electrodes in same with protection circuit be the utility model is related to extraction lithium ion battery; including battery case, battery and circuit board; battery is encapsulated in inside battery case; circuit board is arranged on above battery case; circuit board is provided with positive pole pin, negative pin, positive pole guide pin, negative electrode guide needle and charge-discharge protection circuit, and positive pole pin, negative pin one end, which extend downwardly into, is electrically connected battery positive pole, battery negative pole in battery；The other end connects the input of charge-discharge protection circuit; circuit board is fixed in positive pole guide pin, negative electrode guide needle spot welding; the output end of charge-discharge protection circuit connects positive pole guide pin, negative electrode guide needle by pad; positive pole guide pin, negative electrode guide needle are drawn in the same direction; charge-discharge protection circuit is integrated with circuit board; effectively protection lithium ion battery; excessive discharge and recharge is avoided to cell damage; increase the service life of battery; it is applied widely and positive pole guide pin, the negative electrode guide needle drawn in the same direction are used when facilitating series, parallel.
Description
Technical field
The utility model is related to field of lithium, and in particular to a kind of positive and negative electrodes in same with protection circuit to draw lithium ion
Battery.
Background technology
Lithium ion battery is a kind of secondary cell（Rechargeable battery）, it relies primarily on lithium ion and moved between a positive electrode and a negative electrode
Move and carry out work, in charge and discharge process, Li+ comes and goes insertion and deintercalation between two electrodes；During electric discharge, Li+ takes off from positive pole
It is embedding, negative pole is embedded in by electrolyte, negative pole is in rich lithium state；Then on the contrary, lithium ion battery, which typically uses, contains lithium during charging
The material of element is the representative of modern high performance battery as electrode, due to the high security of lithium ion battery, high stability,
Long-life and it is green the characteristics of, so be widely used, but the both positive and negative polarity of existing lithium ion battery, which is opposite direction, to be drawn
Go out, just extremely prominent head, negative pole is the base plane of shell, is carried more by the way of directly connecting to electrical appliance during use
Power supply source, when used in parallel if desired, special battery case need to be equipped with and just can be used, it is very inconvenient, limit its use
Scope, furthermore, the existing excessive discharge and recharge of lithium ion battery can cause permanent damage to both positive and negative polarity, and over-discharge causes negative pole
Carbon plate Rotating fields collapse, and collapsing can cause lithium ion in charging process not insert；Overcharge make excessive lithium from
The embedded negative pole carbon structure of son, and cause which part lithium ion can not again discharge, it is excessive if discharge current is excessive
Electric current causes inside battery to generate heat, and can cause permanent infringement.
Utility model content
For the excessive discharge and recharge of lithium ion battery in the prior art it is fragile, it is inconvenient the technical problem such as use, this practicality is new
It is as follows to extraction lithium ion battery and its battery pack, concrete technical scheme that type provides a kind of positive and negative electrodes in same with protection circuit：
A kind of positive and negative electrodes in same with protection circuit is to drawing lithium ion battery, including battery case, battery and circuit board,
Battery is encapsulated in inside battery case, and circuit board is arranged on above battery case, and circuit board is provided with positive pole pin, negative pole draws
Pin, positive pole guide pin, negative electrode guide needle and charge-discharge protection circuit, positive pole pin, negative pin one end, which are extended downwardly into battery, to be divided
Electricity Lian Jie not battery positive pole, battery negative pole；The other end connects the input of charge-discharge protection circuit, charge-discharge protection circuit
Output end be electrically connected with positive pole guide pin, negative electrode guide needle, positive pole guide pin, negative electrode guide needle are drawn in the same direction.
As a kind of preferred scheme of the present utility model, the battery includes positive pole paillon foil, negative pole paillon foil, barrier film, just
Pole paillon foil, negative pole paillon foil winding one and between be spaced by barrier film, positive pole pin riveted connection positive pole paillon foil, negative pin
Riveted connects negative pole paillon foil.
As a kind of preferred scheme of the present utility model, the battery case is cylindrical or square, battery case bottom
Provided with explosion-proof trace.
As a kind of preferred scheme of the present utility model, the battery case upper periphery side is provided with the waistband inside contracted,
Battery is by waistband clamping and positioning.
As a kind of preferred scheme of the present utility model, positive pole pin, the connection BMS or PCM discharge and recharges of negative pin one end
Circuit board is fixed in the input of protection circuit, positive pole guide pin, negative electrode guide needle spot welding, and the output end of charge-discharge protection circuit is led to
Cross pad connection positive pole guide pin, negative electrode guide needle.
A kind of positive and negative electrodes in same with protection circuit is to Li-ion batteries piles are drawn, by multiple positive and negative electrodes in same with protection circuit
Formed in parallel or series to lithium ion battery is drawn.
The beneficial effects of the utility model：Charge-discharge protection circuit is integrated with circuit board, effectively protects lithium ion battery,
Excessive discharge and recharge is avoided to increase the service life of battery to cell damage, and positive pole guide pin, the negative electrode guide needle drawn in the same direction are convenient
Used during series, parallel, applied widely, in addition, battery is made up of positive pole paillon foil, negative pole paillon foil, membrane winding, structure is set
Meter is reasonable, is easy to be electrically connected with positive pole guide pin, negative electrode guide needle.
Brief description of the drawings
Fig. 1 is the circuit diagram of charge-discharge protection circuit of the present utility model；
Fig. 2 is positive pole paillon foil of the present utility model, negative pole paillon foil, the schematic diagram of membrane winding one；
Fig. 3 is structural representation of the present utility model；
Fig. 4 is explosion-proof trace position view of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described further：
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified position or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection ", " welding " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；Can be mechanical connection or electrical connection；Can be joined directly together, intermediary can also be passed through
It is indirectly connected, can is the connection of two element internals.For the ordinary skill in the art, concrete condition can be regarded
Understand concrete meaning of the above-mentioned term in the utility model.
As shown in Figures 1 to 3, a kind of positive and negative electrodes in same with protection circuit to draw lithium ion battery, including battery case 1,
Battery 2 and circuit board 3, battery 2 are encapsulated in inside battery case 1, and circuit board 3 is arranged on the top of battery case 1, circuit board
3 are provided with positive pole pin 31, negative pin 32, positive pole guide pin 33, negative electrode guide needle 34 and charge-discharge protection circuit, positive pole pin 31,
The one end of negative pin 32, which extends downwardly into, is electrically connected battery positive pole, battery negative pole in battery 2；The other end connects charge and discharge
The input of electric protection circuit, the output end of charge-discharge protection circuit are electrically connected with positive pole guide pin 33, negative electrode guide needle 34, and positive pole is led
Pin 33, negative electrode guide needle 34 are drawn in the same direction, and when lithium ion battery need to charge, external power source passes through positive pole guide pin 33, negative electrode guide needle
34 are conveyed into charge-discharge protection circuit, and charge-discharge protection circuit is transferred to electric current by positive pole pin 31, negative pin 32 again
Battery 2 is charged, when fully charged after, charge-discharge protection circuit auto-cutout protection battery, conversely, when lithium ion battery is given
When external equipment is powered, battery 2 reaches critical value by positive pole guide pin 33,34 output current in the same direction of negative electrode guide needle, discharge capacity
When, charge-discharge protection circuit auto-cutout protection battery.
Specifically, charge-discharge protection circuit includes first resistor R1, the first electric capacity C1 and chip, positive pole guide pin 33 connect
Battery, battery series connection first resistor R1, first resistor R1 first electric capacity C1 of parallel connection, the first electric capacity C1 connection chips, chip company
Connect negative electrode guide needle 34.
Specifically, the battery 2 includes positive pole paillon foil 21, negative pole paillon foil 22, barrier film 23, positive pole paillon foil 21, anode foil
Piece 22 wind one and between be spaced by barrier film 23, positive pole paillon foil 21, negative pole paillon foil 22, which are wound, is put into battery appearance after one
In device 1, the upper opening of battery case 1 installation end cap 4 prevents positive pole paillon foil 21, negative pole paillon foil 22 from dropping out, and circuit board 3 is riveted on end
The top of lid 4, after positive pole pin 31, the lower section of negative pin 32 pass through end cap 4, the riveted of positive pole pin 31 connection positive pole paillon foil 21, bear
The riveted of pole pin 32 connection negative pole paillon foil 22.
Specifically, the battery case 1 is cylindrical or square, the bottom of battery case 1 is provided with explosion-proof trace, and explosion-proof trace is X
Shape or Y shape, when the increase of battery unstable air pressure inside, gas expansion wash open the explosion-proof trace of rupture (explosion-proof trace with respect to battery case its
Remaining part thickness is thinner), explosion-proof trace 6 can be that variously-shaped preferably Y shape or X-shaped, gas are explosion-proof from the bottom of battery case 1
Discharged at trace, reach discouraged purpose, further improve security, prevent battery from drastically exploding, outside the top of battery case 1
The week side of boss is provided with the waistband 5 that inside contracts, battery 2 by the clamping and positioning of waistband 5, waistband 5 clamp positive pole paillon foil 21, barrier film 23,
Negative pole paillon foil 22, the positive pole paillon foil 21, barrier film 23, negative pole paillon foil 22 of winding one is prevented to be loosened, in addition, positive pole pin 31,
The one end of negative pin 32 connects the input of BMS or PCM charge-discharge protection circuits, and positive pole guide pin 33, negative electrode guide needle 34 are spot welded
Circuit board 3 is fixed on, the output end of charge-discharge protection circuit connects positive pole guide pin, negative electrode guide needle by pad.
A kind of positive and negative electrodes in same with protection circuit is to Li-ion batteries piles are drawn, by multiple above-mentioned carried band protection circuits
Positive and negative electrodes in same to draw lithium ion battery form in parallel or series.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations, for the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (6)
1. a kind of positive and negative electrodes in same with protection circuit to draw lithium ion battery, it is characterised in that：Including battery case, battery
And circuit board, battery are encapsulated in inside battery case, circuit board is arranged on above battery case, and circuit board draws provided with positive pole
Pin, negative pin, positive pole guide pin, negative electrode guide needle and charge-discharge protection circuit, positive pole pin, negative pin one end extend downwardly into electricity
Pond in-core is electrically connected battery positive pole, battery negative pole；The other end connects the input of charge-discharge protection circuit, discharge and recharge
The output end of protection circuit is electrically connected with positive pole guide pin, negative electrode guide needle, and positive pole guide pin, negative electrode guide needle are drawn in the same direction.
2. a kind of positive and negative electrodes in same with protection circuit according to claim 1 to draw lithium ion battery, it is characterised in that：
The battery include positive pole paillon foil, negative pole paillon foil, barrier film, positive pole paillon foil, negative pole paillon foil winding one and between pass through barrier film
It is spaced, positive pole pin riveted connection positive pole paillon foil, negative pin riveted connection negative pole paillon foil.
3. a kind of positive and negative electrodes in same with protection circuit according to claim 1 or 2 exists to lithium ion battery, its feature is drawn
In：The battery case is cylindrical or square, and battery case bottom is provided with explosion-proof trace.
4. a kind of positive and negative electrodes in same with protection circuit according to claim 1 to draw lithium ion battery, it is characterised in that：
The battery case upper periphery side is provided with the waistband inside contracted, and battery is by waistband clamping and positioning.
5. a kind of positive and negative electrodes in same with protection circuit according to claim 1 to draw lithium ion battery, it is characterised in that：
The input of positive pole pin, negative pin one end connection BMS or PCM charge-discharge protection circuits, positive pole guide pin, negative electrode guide needle spot welding
Connect and be fixed on circuit board, the output end of charge-discharge protection circuit connects positive pole guide pin, negative electrode guide needle by pad.
6. a kind of positive and negative electrodes in same with protection circuit to draw Li-ion batteries piles, it is characterised in that：By multiple claims 1~
5 any described positive and negative electrodes in same with protection circuit form in parallel or series to lithium ion battery is drawn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720569883.7U CN206820057U (en) | 2017-05-22 | 2017-05-22 | A kind of positive and negative electrodes in same with protection circuit is to drawing lithium ion battery and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720569883.7U CN206820057U (en) | 2017-05-22 | 2017-05-22 | A kind of positive and negative electrodes in same with protection circuit is to drawing lithium ion battery and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206820057U true CN206820057U (en) | 2017-12-29 |
Family
ID=60757043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720569883.7U Active CN206820057U (en) | 2017-05-22 | 2017-05-22 | A kind of positive and negative electrodes in same with protection circuit is to drawing lithium ion battery and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206820057U (en) |
-
2017
- 2017-05-22 CN CN201720569883.7U patent/CN206820057U/en active Active
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