CN205303577U - Multistage overcurrent protect device of lithium ion battery - Google Patents
Multistage overcurrent protect device of lithium ion battery Download PDFInfo
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- CN205303577U CN205303577U CN201620059575.5U CN201620059575U CN205303577U CN 205303577 U CN205303577 U CN 205303577U CN 201620059575 U CN201620059575 U CN 201620059575U CN 205303577 U CN205303577 U CN 205303577U
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- fusible
- protective device
- overcurrent
- lithium ion
- ion battery
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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 provides a multistage overcurrent protect device of lithium ion battery belongs to the lithium ion battery overcurrent protect device field, overflow the protection device that can fuse including battery monomer, current collector and at least two, the battery monomer is connected through overflowing the protection device that can fuse with current collector. The utility model provides a multistage overcurrent protect device of lithium ion battery can be when the inside emergence of group battery overflows the condition, under for example taking place the condition of short circuit, heavy current, form multistage fusing protection to avoid the performance to the lithium cell, the dangerous circumstances such as high temperature or burning that prevent take place, can ensure the person and the property safety of user and contact environment.
Description
Technical field
The utility model relates to lithium ion battery overcurrent protective device field, particularly, relates toAnd a kind of lithium ion battery multi-stage over-flow protective device.
Background technology
Along with social development and the level of consumption improve, automobile uses more and more universal,Global environmental pollution and oil shortage problem are also more and more outstanding. So new-energy automobile meets the tendencyAnd give birth to wherein electric automobile environmental protection, noiselessness. Its electrokinetic cell used is with lithiumBattery, as the energy, forms specified vol after the battery cell series and parallel of set someBattery pack.
Lithium battery interior has a kind of mechanical overtemperature protection mechanism, when going out in charging and discharging circuitThe situation of existing short circuit, large electric current, can cause that lithium battery heating produces a certain amount of heat gas,This heat gas can cause the mechanical type overcurrent protection mechanism action of inside battery, disconnects batteryInner pole piece connects, and it can have certain protective effect to battery in normal situation.But the electrokinetic cell using as new-energy automobile, its environment for use complexity, discharges and recharges the timeHigher with current requirements, if in use the protection mechanism of inside battery is due to vibrationsOr the factor such as the aging of product, improper use produces and lost efficacy, just can not be the in the situation that of overcurrent andTime play a role to protect battery.
In addition, also have and in some lithium battery set product, contain a kind of elementary overcurrent protection mechanism,As the overcurrent fusing part of wire shape or sheet, if this elementary fuse protection is at some utmost pointIn end situation, also lost efficacy, and at this moment for battery pack, can make battery produce excessive heatAmount, finally causes the even situation generation of blast of high temperature, burning, jeopardizes exposed population group'sThe person and property safety.
Utility model content
The utility model provides a kind of lithium ion battery multi-stage over-flow protective device, is intended to changeKind the problems referred to above.
The utility model is achieved in that
A kind of lithium ion battery multi-stage over-flow protective device, comprise battery cell, collector plate withAnd at least two overcurrent fusible protective devices, described battery cell and described collector plate are passed throughDescribed overcurrent fusible protective device connects.
Further, each described overcurrent fusible protective device includes device body and canFusing electrode ear, described fusible electrode ear is arranged on described device body, described batteryMonomer is connected with described collector plate by described device body and described fusible electrode ear.
Be short-circuited in battery pack inside, large electric current in the situation that, by fusible electrode earFusing, thereby battery circuit is cut off, to avoid the performance impact to lithium battery, anti-Stopping the dangerous situations such as high temperature or burning occurs.
Further, the fusible of the overcurrent fusible protective device of close described battery cellElectrode ear is connected with described battery cell, and the device body of this overcurrent fusible protective deviceBe connected or be connected with described collector plate with adjacent overcurrent fusible protective device.
Further, described device body is tabular, and described fusible electrode ear comprises fixingPortion and fusing portion, described fixed part and described device body are connected by described fusing portion, instituteState fixed part and be connected with described battery cell, described device body is connected with described collector plate.
Device body is tabular, is convenient to be connected with collector plate, makes overcurrent fusible protective deviceForm on the whole a platy structure. In the time that battery pack is protected, by tabular deviceBody is first welded in collector plate, then the fixed part of each fusible electrode ear is welded to respectivelyOn electrode on the battery cell of individual correspondence, if by the electricity of some fusible electrode earsWhen stream exceedes the maximum current-carrying of its design, the fusing portion of fusible electrode ear can fuse moment,Thereby protect this single battery monomer to avoid the generation of its blast situation, and cut off battery packIn contact between other battery cells, do not affect the work of other lithium batteries.
Further, described device body is sheet, and described fusible electrode ear comprises mutuallyThe stator and the fuse link that connect, described stator and described device body are by described fusingSheet connects, and described stator is connected with described battery cell, described device body and described collectionStream plate connects.
Device body is sheet, makes overcurrent fusible protective device in fact by multiple sheetsDevice body is combined to form. In the time that battery pack is protected, by the device body of sheet firstBe welded in collector plate, then the stator of each fusible electrode ear is welded to each correspondenceBattery cell on electrode on, if exceeded by the electric current of some fusible electrode earsWhen the maximum current-carrying of its design, the fuse link energy moment fusing of fusible electrode ear, thus protectProtect this single battery monomer and avoid the generation of its blast situation, and cut off in battery pack otherContact between battery cell, does not affect the work of other lithium batteries.
Further, described device body is U-shaped, the longitudinal section camber of described fuse link.
Fuse link adopts arc, fuses more accurate, can not produce shadow to other battery cellsRing, and after fusing, can prevent the accident again touching, more safe and effective.
Further, described overcurrent fusible protective device is two, is respectively elementary overcurrentFusible protective device and secondary overcurrent fusible protective device, described secondary overcurrent fusibleThe rated blowing-current of protective device is greater than the specified of described elementary overcurrent fusible protective deviceBlowout current.
Elementary overcurrent fusible protective device can be brought into play elementary protective effect; Even elementaryIn the situation that overcurrent fusible protective device may lose efficacy, secondary overcurrent fusible protective deviceAlso can bring into play protective effect.
Further, described elementary overcurrent fusible protective device and described secondary overcurrent are fusibleOne of them in disconnected protective device is connected with the positive pole of described battery cell, another and instituteThe negative pole of stating battery cell connects.
Elementary overcurrent fusible protective device and secondary overcurrent fusible protective device can be established respectivelyBe placed in both positive and negative polarity or the mutual reversing of position of battery cell, all can realize the effect of multi-stage protection.
Further, described elementary overcurrent fusible protective device and described secondary overcurrent are fusibleDisconnected protective device is arranged at the negative or positive electrode of described battery cell simultaneously, described elementary overcurrentFusible protective device and described secondary overcurrent fusible protective device interconnect, described at the beginning ofIn level overcurrent fusible protective device and described secondary overcurrent fusible protective device wherein oneIndividual fusible electrode ear is connected with described battery cell, and another device body and instituteStating battery cell connects.
Elementary overcurrent fusible protective device and secondary overcurrent fusible protective device can be established simultaneouslyBe placed in the same electrode of battery cell, be arranged at positive pole simultaneously or be arranged at negative pole simultaneously,All can realize multi-stage protection effect.
Further, described collector plate is provided with in the position of the described fusible electrode of correspondence earThrough hole.
By through hole is set in collector plate, be convenient to carry out the welding of battery.
The beneficial effect of the lithium ion battery multi-stage over-flow protective device that the utility model providesBe: this lithium ion battery multi-stage over-flow protective device can be at the inner overcurrent condition that occurs of battery packTime, be for example short-circuited, in the situation of large electric current, form multistage fuse protection, to avoidTo the performance impact of lithium battery, prevent that the dangerous situation such as high temperature or burning from occurring, and can ensureThe person of user and contact environment and property safety.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below will be to realityExecute the accompanying drawing of required use in example and be briefly described, should be appreciated that the following drawings only showsGo out some embodiment of the present utility model, therefore should not be counted as the restriction to scope,For those of ordinary skill in the art, do not paying under the prerequisite of creative work, alsoCan obtain other relevant accompanying drawings according to these accompanying drawings.
The lithium ion battery multi-stage over-flow protective device that Fig. 1 provides for the utility model embodimentThe wherein perspective view at a side-looking angle;
The lithium ion battery multi-stage over-flow protective device that Fig. 2 provides for the utility model embodimentThe perspective view at opposite side visual angle;
The lithium ion battery multi-stage over-flow protective device that Fig. 3 provides for the utility model embodimentDecomposition texture schematic diagram;
The lithium ion battery multi-stage over-flow protective device that Fig. 4 provides for the utility model embodimentThe structural representation of elementary overcurrent fusible protective device;
The lithium ion battery multi-stage over-flow protective device that Fig. 5 provides for the utility model embodimentThe structural representation of single screening glass of secondary overcurrent fusible protective device.
Figure acceptance of the bid note is respectively:
Battery cell 10;
Collector plate 20; Through hole 201;
Overcurrent fusible protective device 30;
Elementary overcurrent fusible protective device 301; Primary device body 3011; Elementary fusiblePower-off lug 3012; Fixed part 3013; Fusing portion 3014;
Secondary overcurrent fusible protective device 302; Second unit body 3021; Secondary fusiblePower-off lug 3022; Stator 3023; Fuse link 3024.
Detailed description of the invention
For making object, technical scheme and the advantage of the utility model embodiment clearer, underFace is in connection with the accompanying drawing in the utility model embodiment, to the skill in the utility model embodimentArt scheme is clearly and completely described, and obviously, described embodiment is that this practicality is newType part embodiment, instead of whole embodiment. Conventionally describe in accompanying drawing herein andThe assembly of the utility model embodiment illustrating can be arranged and establish with various configurationMeter. Therefore the detailed description to the embodiment of the present utility model providing in the accompanying drawings,Not be intended to limit claimed scope of the present utility model, but only represent this practicalityNovel selected embodiment. Based on the embodiment in the utility model, ordinary skillPersonnel, not making the every other embodiment obtaining under creative work prerequisite, belong toIn the scope of the utility model protection.
Embodiment
Refer to Fig. 1～Fig. 3, the present embodiment provides a kind of lithium ion battery multi-stage over-flow to protectProtection unit, comprises battery cell 10, collector plate 20 and at least two overcurrent fusible guarantorsProtection unit 30, battery cell 10 passes through overcurrent fusible protective device 30 with collector plate 20Connect.
Each overcurrent fusible protective device 30 includes device body and fusible electrode ear,Fusible electrode ear is arranged on device body, and battery cell 10 is by device body and canFusing electrode ear is connected with collector plate 20. As preferably, fusible electrode ear can adopt aluminium,Nickel material or nickel plating material are made. On fusible electrode ear, there is flexible fusing part, on the one handCan bring into play the effect flexibly connecting, more installation, more reliable; In conjunction with specified on the other handThe conversion relation of electric current and material cross-section designs, in the time exceeding its rated blowing-current,The protective effect of fusing performance in time.
Be short-circuited in battery pack inside, large electric current in the situation that, by fusible electrode earFusing, thereby battery circuit is cut off, to avoid the performance impact to lithium battery, anti-Stopping the dangerous situations such as high temperature or burning occurs.
The quantity of overcurrent fusible protective device 30 can be two, three, four or moreMultiple. The installation site of overcurrent fusible protective device 30 can be battery cell 10 justThe utmost point, negative pole that also can battery cell 10, not concrete restriction, can connect individuallyBetween battery cell 10 and collector plate 20, can be also multiple overcurrent fusible protection dressesPutting 30 interconnects and is connected between battery cell 10 and collector plate 20. Fusible at overcurrentDisconnected protective device 30 is connected in the situation between battery cell 10 and collector plate 20 individuallyUnder, the fusible electrode ear of overcurrent fusible protective device 30 is connected with battery cell 10,And device body is connected with collector plate 20; Mutual at multiple overcurrent fusible protective devices 30Connect and be connected in the situation between battery cell 10 and collector plate 20, near battery listThe fusible electrode ear of the overcurrent fusible protective device 30 of body 10 and battery cell 10 connectConnect, and the device body of this overcurrent fusible protective device 30 and adjacent overcurrent fusible are protectedProtection unit 30 connects, and the device of the overcurrent fusible protective device 30 of close collector plate 20 originallyBody is connected with collector plate 20. In addition, the device body of overcurrent fusible protective device 30 andFusible electrode ear can adopt arbitrary shape, as long as can ensure in the inner generation of battery packIn the situation of short circuit, large electric current, fusible electrode ear can fuse.
Refer to Fig. 1～Fig. 5, the structure of this protective device and principle for convenience of description, thisIn embodiment, overcurrent fusible protective device 30 is two, is respectively elementary overcurrent fusibleProtective device 301 and secondary overcurrent fusible protective device 302, and secondary overcurrent canThe rated blowing-current of fuse protecting device 302 is greater than elementary overcurrent fusible protective device301 rated blowing-current. As preferably, secondary overcurrent fusible protective device 302Rated blowing-current is designed to the rated blowing-current of elementary overcurrent fusible protective device 3011～1.5 times.
So, device body is divided into primary device body 3011 and second unit body 3021,Fusible electrode ear is divided into elementary fusible electrode ear 3012 and secondary fusible electrode ear3022. In addition, collector plate 20 is two, be arranged at respectively battery cell 10 positive pole andNegative pole. Collector plate 20 is at the elementary fusible electrode of correspondence ear 3012 or secondary fusible electrodeThe position of ear 3022 is provided with through hole 201. By through hole 201 is set in collector plate 20,Be convenient to carry out the welding of battery.
Wherein, refer to Fig. 1～Fig. 4, elementary overcurrent fusible protective device 301 is arranged atThe negative pole of battery cell 10. The primary device body of elementary overcurrent fusible protective device 3013011 is tabular, and its elementary fusible electrode ear 3012 comprises fixed part 3013 and fusing portion3014, fixed part 3013 is connected by fusing portion 3014 with primary device body 3011, GuBonding part 3013 is connected with the negative pole of battery cell 10, primary device body 3011 and collector plate20 connect.
Elementary overcurrent fusible protective device 301 forms a platy structure on the whole, elementaryDevice body 3011 is a plate, is connected with multiple elementary fusible electrode ears 3012 above.In the time that battery pack is protected, tabular primary device body 3011 is first welded to affluxOn plate 20, then the fixed part 3013 of each elementary fusible electrode ear 3012 is welded to respectivelyOn electrode on the battery cell 10 of individual correspondence, if by some elementary fusible electrodesWhen the electric current of ear 3012 exceedes the maximum current-carrying of its design, elementary fusible electrode ear 3012Fusing portion 3014 can moments fusing, thereby protect this single battery monomer 10 to avoid it quick-friedThe generation of fried situation, and cut off the contact between other battery cells 10 in battery pack, noAffect the work of other lithium batteries.
In addition, refer to Fig. 1～Fig. 3 and Fig. 5, secondary overcurrent fusible protective device 302Be arranged at the positive pole of battery cell 10, secondary overcurrent fusible protective device 302 comprises multipleScreening glass, each screening glass includes second unit body 3021 and secondary fusible electrode ear3022, second unit body 3021 is sheet, and secondary fusible electrode ear 3022 comprises phaseThe stator 3023 connecting and fuse link 3024, stator 3023 and second unit body3021 connect by fuse link 3024, and stator 3023 is connected with battery cell 10, inferiorStage arrangement body 3021 is connected with collector plate 20.
Second unit body 3021 is U-shaped, the longitudinal section camber of fuse link 3024. MoltenPart 3024 adopts arc, fuses more accurate, can not produce other battery cells 10Impact, and after fusing, can prevent the accident again touching, more safe and effective.
In the time that battery pack is protected, the second unit body 3021 of sheet is first welded toIn collector plate 20, then the stator 3023 of each secondary fusible electrode ear 3022 is weldedTo the electrode on each corresponding battery cell 10, if by some secondary fusibleWhen the electric current of electrode ear 3022 exceedes the maximum current-carrying of its design, secondary fusible electrode ear3022 fuse link 3024 can fuse moment, thereby protects this single battery monomer 10 to avoidThe generation of its blast situation, and cut off the connection between other battery cells 10 in battery packSystem, does not affect the work of other lithium batteries.
Should be appreciated that, refer to Fig. 1～Fig. 5, elementary overcurrent fusible protective device 301 HesOne of them in secondary overcurrent fusible protective device 302 and the positive pole of battery cell 10 connectConnect, another is connected with the negative pole of battery cell 10. That is to say elementary overcurrent fusibleProtective device 301 and secondary overcurrent fusible protective device 302 can be arranged at respectively battery listThe both positive and negative polarity of body 10 or mutually reversing of position, all can realize the effect of multi-stage protection.
In addition, elementary overcurrent fusible protective device 301 and secondary overcurrent fusible protection dressPut 302 negative or positive electrodes that can simultaneously be arranged at battery cell 10, elementary overcurrent fusible is protectedProtection unit 301 and secondary overcurrent fusible protective device 302 interconnect, and elementary overcurrent canOne of them in fuse protecting device 301 and secondary overcurrent fusible protective device 302Fusible electrode ear is connected with battery cell 10, and another device body and battery cell10 connect. That is to say, elementary overcurrent fusible protective device 301 and secondary overcurrent are fusibleDisconnected protective device 302 can be arranged at the same electrode of battery cell 10 simultaneously, is arranged at simultaneouslyAnodal or be arranged at negative pole simultaneously, all can realize multi-stage protection effect.
In addition, elementary overcurrent fusible protective device 301 and secondary overcurrent fusible protection dressPut 302 shape and structure and also can exchange, be i.e. elementary overcurrent fusible protective device 301Adopt sheet, secondary overcurrent fusible protective device 302 adopts tabular, as long as meet secondaryThe rated blowing-current of overcurrent fusible protective device 302 is greater than elementary overcurrent fusible protectionThe rated blowing-current of device 301.
In sum, refer to Fig. 1～Fig. 5, the lithium ion battery that the present embodiment provides is multistageOvercurrent protective device is in the time of the over proof blowout current of its fusible electrode ear, such as generationShort circuit, large current conditions, it is right that this fusible electrode ear is brought into play because concentrated overheated meeting fuses automaticallyThe protective effect of lithium battery. Even the mechanical protection mechanism failure of inside battery, elementary overcurrentFusible protective device 301 can be brought into play protective effect; Even protect in elementary overcurrent fusibleIn the situation that protection unit 301 may lose efficacy, secondary overcurrent fusible protective device 302 also canPerformance protective effect, to avoid the performance impact to lithium battery, prevents the danger such as high temperature or burningDangerous situation condition occurs, and can ensure the person and the property safety of user and contact environment. This guarantorThe elementary overcurrent fusible protective device 301 of protection unit and secondary overcurrent fusible protective device302 can be efficient, safe the protective effect of performance to lithium battery, guarantee that battery pack connectsLoop safe, reliable, and then ensure the normal use of power battery pack.
In the utility model, unless otherwise clearly defined and limited, term " installation "," be connected ", the term such as " connection ", " fixing " should be interpreted broadly, and for example, can be solidFixed connection, can be also to removably connect, or integral; Can be mechanical connection, also canTo be electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, canTo be the connection of two element internals or the interaction relationship of two elements. For this areaThose of ordinary skill, can understand as the case may be above-mentioned term new in this practicalityConcrete meaning in type.
In the utility model, unless otherwise clearly defined and limited, First Characteristic isTwo features it " on " or D score can comprise that the first and second features directly contact, alsoCan comprise that the first and second features are not directly contact but other by between themFeature contact. And, First Characteristic Second Characteristic " on ", " top " and " above "Comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent First Characteristic waterFlat height is higher than Second Characteristic. First Characteristic Second Characteristic " under ", " below " and " underFace " comprise First Characteristic under Second Characteristic and tiltedly, or only represent the first spyLevy level height and be less than Second Characteristic.
The foregoing is only preferred embodiment of the present utility model, be not limited to thisUtility model, for a person skilled in the art, the utility model can have more variousChange and change. All within spirit of the present utility model and principle, any amendment of doing,Be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a lithium ion battery multi-stage over-flow protective device, is characterized in that, comprises electricityPond monomer, collector plate and at least two overcurrent fusible protective devices, described battery cellBe connected by described overcurrent fusible protective device with described collector plate.
2. lithium ion battery multi-stage over-flow protective device according to claim 1, itsBe characterised in that, each described overcurrent fusible protective device includes device body and fusibleElectrode ear, described fusible electrode ear is arranged on described device body, described battery cellBe connected with described collector plate by described device body and described fusible electrode ear.
3. lithium ion battery multi-stage over-flow protective device according to claim 2, itsBe characterised in that the fusible electrode of the overcurrent fusible protective device of close described battery cellEar is connected with described battery cell, and the device body and phase of this overcurrent fusible protective deviceAdjacent overcurrent fusible protective device connects or is connected with described collector plate.
4. lithium ion battery multi-stage over-flow protective device according to claim 3, itsBe characterised in that, described device body is tabular, described fusible electrode ear comprise fixed part andFusing portion, described fixed part and described device body are connected by described fusing portion, described solidBonding part is connected with described battery cell, and described device body is connected with described collector plate.
5. lithium ion battery multi-stage over-flow protective device according to claim 3, itsBe characterised in that, described device body is sheet, and described fusible electrode ear comprises and interconnectingStator and fuse link, described stator and described device body connect by described fuse linkConnect, described stator is connected with described battery cell, described device body and described collector plateConnect.
6. lithium ion battery multi-stage over-flow protective device according to claim 5, itsBe characterised in that, described device body is U-shaped, the longitudinal section camber of described fuse link.
7. lithium ion battery multi-stage over-flow protective device according to claim 3, itsBe characterised in that, described overcurrent fusible protective device is two, is respectively elementary overcurrent fusibleDisconnected protective device and secondary overcurrent fusible protective device, described secondary overcurrent fusible protectionThe rated blowing-current of device is greater than the specified fusing of described elementary overcurrent fusible protective deviceElectric current.
8. lithium ion battery multi-stage over-flow protective device according to claim 7, itsBe characterised in that, described elementary overcurrent fusible protective device and described secondary overcurrent fusible are protectedOne of them in protection unit is connected with the positive pole of described battery cell, another and described electricityThe negative pole of pond monomer connects.
9. lithium ion battery multi-stage over-flow protective device according to claim 7, itsBe characterised in that, described elementary overcurrent fusible protective device and described secondary overcurrent fusible are protectedProtection unit is arranged at the negative or positive electrode of described battery cell simultaneously, and described elementary overcurrent is fusibleDisconnected protective device and described secondary overcurrent fusible protective device interconnect, described elementary mistakeOne of them in stream fusible protective device and described secondary overcurrent fusible protective deviceFusible electrode ear is connected with described battery cell, and another device body and described electricityPond monomer connects.
10. according to the lithium ion battery multi-stage over-flow protection described in claim 3-9 any oneDevice, is characterized in that, described collector plate is established in the position of the described fusible electrode of correspondence earBe equipped with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620059575.5U CN205303577U (en) | 2016-01-20 | 2016-01-20 | Multistage overcurrent protect device of lithium ion battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620059575.5U CN205303577U (en) | 2016-01-20 | 2016-01-20 | Multistage overcurrent protect device of lithium ion battery |
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| Publication Number | Publication Date |
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| CN205303577U true CN205303577U (en) | 2016-06-08 |
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| CN201620059575.5U Active CN205303577U (en) | 2016-01-20 | 2016-01-20 | Multistage overcurrent protect device of lithium ion battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702908A (en) * | 2016-01-20 | 2016-06-22 | 华霆（合肥）动力技术有限公司 | Multi-stage over-current protection device of lithium ion battery |
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2016
- 2016-01-20 CN CN201620059575.5U patent/CN205303577U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702908A (en) * | 2016-01-20 | 2016-06-22 | 华霆（合肥）动力技术有限公司 | Multi-stage over-current protection device of lithium ion battery |
| CN105702908B (en) * | 2016-01-20 | 2018-10-19 | 华霆（合肥）动力技术有限公司 | A kind of lithium ion battery multistage overcurrent protective device |
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Address after: 230000 Anhui Hefei economic and Technological Development Zone, Xin Xin Road, No. 62 power battery factory Patentee after: Huating (Hefei) Power Technology Co., Ltd. Address before: 230000 No. 26, No. 5, Tsing Luen Road, Hefei economic and Technological Development Zone, Anhui Patentee before: Huating (Hefei) Power Technology Co., Ltd. |