CN204407434U - A kind of safe polymer Li-ion battery group structure - Google Patents
A kind of safe polymer Li-ion battery group structure Download PDFInfo
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- CN204407434U CN204407434U CN201520080487.9U CN201520080487U CN204407434U CN 204407434 U CN204407434 U CN 204407434U CN 201520080487 U CN201520080487 U CN 201520080487U CN 204407434 U CN204407434 U CN 204407434U
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- 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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- 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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- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model belongs to battery technology field, particularly relates to a kind of safe polymer Li-ion battery group structure, and comprise the battery pack and shell that consist of the polymer Li-ion battery of connecting and/or be connected in parallel several, battery pack is placed in shell; Battery pack is provided with temperature control circuit breaker, total positive plate, total negative plate and charging input connector, temperature control circuit breaker is together connected to total positive plate after being connected in series with total negative plate again and charges on input connector, forms charge protector.Relative to prior art, the utility model is by arranging temperature control circuit breaker on the battery pack, when being in the condition of high temperature when battery pack because of abnormal charging, temperature control circuit breaker is off state, thus the appearance of the decline of battery performance stoping battery pack to be charged in high temperature environments and cause and the security incident of initiation, the safety in utilization of battery pack can be improved widely.
Description
Technical field
The utility model belongs to battery technology field, and more particularly, the utility model relates to a kind of safe polymer Li-ion battery group structure.
Background technology
Polymer Li-ion battery is as the one of clean energy resource, due to it, to have voltage high, the discharge and recharge life-span is long, the plurality of advantages such as the little and self-discharge rate of environmental pollution is low, be widely used in each electronic product, as smart mobile phone, notebook computer, digital camera and portable compact electric apparatus etc.
Along with improving constantly of a large amount of use of polymer Li-ion battery on electronic product and battery energy density, the fail safe of battery needs to strengthen further, especially for the battery pack of being connected by multiple polymer Li-ion battery and/or being formed in parallel, if abnormal charging (as high-temperature charging, overcharge etc.) situation appears in one of them polymer Li-ion battery, just there is very serious potential safety hazard in so whole battery pack.
In order to improve the fail safe of battery pack, usually can install the protective device such as overvoltage, excess temperature additional at charger internal, when the situation of abnormal charging appears in battery pack, these protective devices can play certain protective effect.But, when the protective circuit element of charger internal abused, be disassembled or run into fault time, just lose the protection of charger protector during batteries charging, thus increase the potential safety hazard of battery pack.
In addition, at present many and go here and there the connection majority of battery pack and adopt the mode of PCM keyset, the lug of battery is connected on PCM keyset, realize battery serial connection or and connect, then be connected to PCM mainboard from total positive plate end and total negative plate end, form loop.This assembling mode is comparatively complicated, and operation easier is comparatively large, and fraction defective is high, and manufacturing cost is higher.
In view of this, necessaryly provide a kind of safe polymer Li-ion battery group structure, it is by adding temperature control circuit breaker, can improve the safety in utilization of battery pack widely, this technique simple possible, operation easier is low, low cost of manufacture, fraction defective is low, and more safe and reliable.
Utility model content
One of the purpose of this utility model is: for the deficiencies in the prior art, and provides a kind of safe polymer Li-ion battery group structure, and it can improve the safety in utilization of battery pack widely by adding temperature control circuit breaker.
In order to achieve the above object, the utility model adopts following technical scheme:
A safe polymer Li-ion battery group structure, comprise the battery pack and shell that consist of the polymer Li-ion battery of connecting and/or be connected in parallel several, described battery pack is placed in described shell;
Described battery pack is provided with temperature control circuit breaker, total positive plate, total negative plate and charging input connector; described temperature control circuit breaker is together connected on described charging input connector with described total positive plate after being connected in series with described total negative plate again, forms charge protector.
One as the polymer Li-ion battery group structure of the utility model safety is improved, described battery pack is also provided with electric discharge out connector, described total positive plate is connected with described electric discharge out connector by major loop connecting lead wire with described total negative plate, forms discharge loop.
One as the polymer Li-ion battery group structure of the utility model safety is improved, connected by brace between the lug of described polymer Li-ion battery, described brace is connected with voltage signal detecting lead-in wire, described voltage signal detecting lead-in wire is also connected with described charging input connector, coating-forming voltage circuit for detecting.
One as the polymer Li-ion battery group structure of the utility model safety is improved, and described brace is for connecting nickel sheet, connecting copper sheet or flexible print wiring board.
One as the polymer Li-ion battery group structure of the utility model safety is improved, described lug is connected by Laser Welding with described brace, spot welding connection, ultrasonic bond connect or soldering connect.
One as the polymer Li-ion battery group structure of the utility model safety is improved, insulating paper is provided with between described lug and described brace, be filled with compression foam between adjacent described lug, and be wound with polymer tapes outside the entirety of described lug and described compression foam composition.
One as the polymer Li-ion battery group structure of the utility model safety is improved, and be provided with adhesive linkage between adjacent described polymer Li-ion battery, the position, angle of described battery pack is provided with compression foam.
One as the polymer Li-ion battery group structure of the utility model safety is improved, described temperature control circuit breaker is arranged between the closedtop limit of two adjacent described polymer Li-ion batteries, and described temperature control circuit breaker and and described temperature control breaker contacts described polymer Li-ion battery top between be provided with thermal conductive material layer.
One as the polymer Li-ion battery group structure of the utility model safety is improved, described shell comprises left shell, right shell body and upper cover, described left shell and described right shell body form accommodation space jointly, and described upper cover covers the upper end at described left shell and described right shell body and described upper cover is positioned at directly over described battery pack;
The first main casing that described left shell comprises the first drain pan, the first top shell and is arranged between described first top shell and described first drain pan; The second main casing described right shell body comprising the second drain pan, the second top shell and be arranged between described second top shell and described second drain pan; Described first drain pan and described second drain pan form the supporting construction for supporting described battery pack jointly, and described first top shell is all connected with described upper cover with described second top shell.
Relative to prior art; the utility model is by arranging temperature control circuit breaker on the battery pack; when being in the condition of high temperature when battery pack because of abnormal charging; temperature control circuit breaker is off state; thus the appearance of the decline of battery performance stoping battery pack to be charged in high temperature environments and cause and the security incident of initiation; and as there is the abnormal situation about raising of battery temperature in charging process; temperature control circuit breaker can disconnect charging current in time; thus reach the object of safeguard protection, the safety in utilization of battery pack can be improved widely.And when battery temperature is reduced to normal temperature state, temperature control circuit breaker, again in closure state, allows the normal discharge and recharge of battery pack.The utility model structure is simple, and the control mode of temperature protection is simple and reliable, does not need extra excess temperature to detect protecting control circuit, thus can reduce the consumption of battery electric quantity, and can not increase the cost of material extraly.
Another object of the present utility model is the packaging technology providing a kind of safe polymer Li-ion battery group structure, comprises the following steps:
The first step, several polymer Li-ion batteries are placed side by side in auxiliary clamp, brace is adopted to be coupled together by the lug of described polymer Li-ion battery, form total positive plate and total negative plate, make polymer Li-ion battery described in several be combined into battery pack by the mode of series connection and/or parallel connection;
Second step, arranges charging input connector and temperature control circuit breaker, is together connected on described charging input connector again after described temperature control circuit breaker is connected in series with described total negative plate with described total positive plate in the upper end of described battery pack, form charge protector;
3rd step, arranges insulating paper between described lug and described brace, and sticks compression foam in the position, angle of described battery pack, finally battery pack is placed in shell again.
One as the packaging technology of the polymer Li-ion battery group structure of the utility model safety is improved, second step is also included in the step described battery pack being arranged electric discharge out connector and major loop connecting lead wire, described total positive plate is connected with described electric discharge out connector by described major loop connecting lead wire with described total negative plate, forms discharge loop.
One as the packaging technology of the polymer Li-ion battery group structure of the utility model safety is improved, second step is also included on described brace and connects voltage signal detecting lead-in wire, and described voltage signal detecting lead-in wire is connected with described charging input connector, the step of coating-forming voltage circuit for detecting.
One as the packaging technology of the polymer Li-ion battery group structure of the utility model safety is improved, the first step is also included in the step arranging adhesive linkage between adjacent described polymer Li-ion battery, and the 3rd step is also included in and arranges insulating paper between described lug and described brace, between adjacent described lug, fill compression foam and be wound around the step of polymer tapes outward in the entirety of described lug and described compression foam composition.
One as the packaging technology of the polymer Li-ion battery group structure of the utility model safety is improved, the circuit breaker of temperature control described in second step is arranged between the closedtop limit of two adjacent described polymer Li-ion batteries, and be also included in second step described temperature control circuit breaker and and described temperature control breaker contacts described polymer Li-ion battery top between the step of thermal conductive material layer is set.
Relative to prior art; the utility model utilizes brace to make loop serial connection dexterously; and utilize temperature control circuit breaker to realize the object of safeguard protection; structure is simple; technique obtains optimization, and make whole simple for assembly process easy, manufacturing cost reduces greatly; fraction defective reduces greatly, and makes this battery pack structure more safe and reliable.In addition, the battery pack structure loop internal resistance be assembled into is little, electric property is stablized.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model embodiment 1.
Fig. 2 is the decomposition texture schematic diagram of the utility model embodiment 1.
Fig. 3 is the decomposition texture schematic diagram of battery section in the utility model embodiment 1.
Fig. 4 is the perspective view of battery section in the utility model embodiment 1.
Wherein:
1-battery pack, 2-voltage signal detecting lead-in wire, 3-shell, 31-left shell, 311-first drain pan, 312-first top shell, 313-first main casing, 32-right shell body, 321-second drain pan, 322-second top shell, 323-second main casing, 33-upper cover, 4-temperature control circuit breaker, the total positive plate of 5-, the total negative plate of 6-, 7-charges input connector, 8-discharges out connector, 9-brace, 10-insulating paper, 11-compresses foam, 12-polymer tapes, 13-major loop connecting lead wire.
Embodiment
Embodiment 1
As shown in Figures 1 to 4, a kind of safe polymer Li-ion battery group structure that the present embodiment provides, comprise the battery pack 1 and shell 3 that consist of the polymer Li-ion battery of connecting and/or be connected in parallel several, battery pack 1 is placed in shell 3; Wherein, battery pack 1 is for realizing discharge and recharge.Shell 3 is for self-contained battery group 1.
Battery pack 1 is provided with temperature control circuit breaker 4, total positive plate 5, total negative plate 6 and charging input connector 7, temperature control circuit breaker 4 is together connected to total positive plate 5 after being connected in series with total negative plate 6 again and charges on input connector 7, forms charge protector.Wherein, the operation principle of temperature control circuit breaker 4 is: when battery pack 1 because when being in the condition of high temperature; temperature control circuit breaker 4 is in off state; thus the appearance of the decline of battery performance stoping battery pack 1 to be charged in high temperature environments and cause and the security incident of initiation; and as there is the abnormal situation about raising of battery temperature in charging process; temperature control circuit breaker 4 can disconnect charging current in time, thus reaches the object of safeguard protection, can improve the safety in utilization of battery pack 1 widely.And when battery temperature is reduced to normal temperature state, temperature control circuit breaker 4, again in closure state, allows the normal discharge and recharge of battery pack.
Battery pack 1 is also provided with electric discharge out connector 8, total positive plate 5 is connected with electric discharge out connector 8 by major loop connecting lead wire 13 with total negative plate 6, forms discharge loop, for client device.
Connected by brace 9 between polymer Li-ion battery.Preferably, brace 9 is for connecting nickel sheet, connecting copper sheet or flexible print wiring board, or electric wire, can certainly be that other can play the brace 9 of conduction connection function.Lug is connected by Laser Welding with brace 9, spot welding connection, ultrasonic bond connect or soldering connect, other welding manners can certainly be adopted.
Be provided with insulating paper 10 between lug and brace 9, the material of insulating paper 10 is Du Pont's paper, polyimides paper or fire prevention fast bar paper etc., to play the effect of insulation between lug and brace 9.Compression foam 11 is filled with between adjacent lug, this compression foam 11 can play the effect of support, and be wound with polymer tapes 12 outside the entirety that lug and compression foam 11 form, in the present embodiment, polymer tapes 12 is Kapton Tape, to fix the entirety of lug and compression foam 11 composition.
Adhesive linkage is provided with between adjacent polymer Li-ion battery, the material of this adhesive linkage is double faced adhesive tape or Kapton Tape, the position, angle of battery pack 1 is provided with compression foam 11, utilizes the shrinkage of compression foam 11 battery pack 1 can be anchored on the inside of shell 3.
Brace 9 is connected with voltage signal detecting lead-in wire 2, and voltage signal detecting lead-in wire 2 is also connected with charging input connector 7, coating-forming voltage circuit for detecting.That is, the positive and negative electrode that voltage signal detecting lead-in wire 2 is connected to each monomer-polymer lithium ion battery causes charging input connector 7 and is used as charging equilibrium function, and this voltage detection circuit can detect the abnormal conditions of voltage, discriminator circuit.
Temperature control circuit breaker 4 is arranged between the closedtop limit of two adjacent polymer Li-ion batteries, and is provided with thermal conductive material layer between temperature control circuit breaker 4 and the top of polymer Li-ion battery contacted with temperature control circuit breaker 4.This temperature control circuit breaker 4 can be arranged between the closedtop limit of any two polymer Li-ion batteries; thermal conductive material layer the degree of heat that temperature control circuit breaker 4 can be made to sense polymer Li-ion battery is exactly set; improve the sensitivity of heat conduction, thus battery is forbidden to the safeguard protection of charging under achieving the condition of high temperature reliably.This temperature protection control mode is simple and reliable, does not need extra excess temperature to detect protecting control circuit, the consumption of battery electric quantity that extra excess temperature detection protecting control circuit therefore can be avoided to bring and the increase of material cost.Certainly, temperature control circuit breaker 4 also can be arranged on bottom or other any position that can touch polymer Li-ion battery of battery pack 1.
Shell 3 comprises left shell 31, right shell body 32 and upper cover 33, and left shell 31 and right shell body 32 form accommodation space jointly, and upper cover 33 covers upper end at left shell 31 and right shell body 32 and upper cover 33 is positioned at directly over battery pack 1.Left shell 31, right shell body 32 and upper cover 33 form a space that battery pack 1 can be securely fixed in it.
Left shell 31 comprises the first drain pan 311, first top shell 312 and be arranged at the first main casing 313 between the first top shell 312 and the first drain pan 311; Right shell body 32 comprises the second drain pan 321, second top shell 322 and be arranged at the second main casing 323 between the second top shell 322 and the second drain pan 321; First drain pan 311 and the second drain pan 321 form the supporting construction being used for support cells group 1 jointly, and the first top shell 312 is all connected with upper cover 33 with the second top shell 322.This shell 3 structure is simple, easy to removal and installation, and manufacturing cost is lower.
Shell 3 is set to plastic shell, and namely left shell 31, right shell body 32 and upper cover 33 are all plastic cement materials, thus can play the effect of insulation, and this plastic shell has higher intensity and longer useful life.
Embodiment 2
Present embodiments provide the packaging technology of the polymer Li-ion battery group structure of the safety that a kind of embodiment 1 provides, comprise the following steps:
The first step, several polymer Li-ion batteries (battery body posting the double faced adhesive tape of subsidiary release liners) are placed side by side in auxiliary clamp, laser welding is adopted connection nickel sheet to be coupled together by the lug of polymer Li-ion battery, form total positive plate 5 and total negative plate 6, then tear double faced adhesive tape release liners, make several polymer Li-ion batteries be combined into battery pack 1 by the mode of series connection and/or parallel connection;
Second step, charging input connector 7, temperature control circuit breaker 4, electric discharge out connector 8 and major loop connecting lead wire 13 are set in the upper end of battery pack 1, together being connected to total positive plate 5 after making temperature control circuit breaker 4 be connected in series (being connected in series by soldering mode) with total negative plate 6 charges on input connector 7 again, forms charge protector; Wherein, temperature control circuit breaker 4 is arranged between the closedtop limit of two adjacent polymer Li-ion batteries, and arranges thermal conductive material layer between temperature control circuit breaker 4 and the top of polymer Li-ion battery contacted with temperature control circuit breaker 4;
Total positive plate 5 is connected with electric discharge out connector 8 by major loop connecting lead wire 13 with total negative plate 6, forms discharge loop;
Connection nickel sheet connects voltage signal detecting lead-in wire 2, and voltage signal detecting lead-in wire 2 is connected with charging input connector 7, coating-forming voltage circuit for detecting.
3rd step, between lug and connection nickel sheet, Du Pont's paper is set, stick compression foam 11 in the position, angle of battery pack 1, then battery pack 1 is placed in the accommodation space that is made up of left shell 31 and right shell body 32, utilize the shrinkage of compression foam 11 battery pack 1 can be anchored on the inside of this accommodation space.Then between adjacent lug, fill compression foam 11, the entirety formed at lug and compression foam 11 is wound around Kapton Tape outward, finally buckles upper cover 33 again, completes the assembling of whole battery pack structure.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and amendment to above-mentioned execution mode.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection range of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this specification, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (9)
1. a polymer Li-ion battery group structure for safety, is characterized in that: comprise the battery pack and shell that consist of the polymer Li-ion battery of connecting and/or be connected in parallel several, described battery pack is placed in described shell;
Described battery pack is provided with temperature control circuit breaker, total positive plate, total negative plate and charging input connector; described temperature control circuit breaker is together connected on described charging input connector with described total positive plate after being connected in series with described total negative plate again, forms charge protector.
2. safe polymer Li-ion battery group structure according to claim 1, it is characterized in that: described battery pack is also provided with electric discharge out connector, described total positive plate is connected with described electric discharge out connector by major loop connecting lead wire with described total negative plate, forms discharge loop.
3. safe polymer Li-ion battery group structure according to claim 1, it is characterized in that: connected by brace between the lug of described polymer Li-ion battery, described brace is connected with voltage signal detecting lead-in wire, described voltage signal detecting lead-in wire is also connected with described charging input connector, coating-forming voltage circuit for detecting.
4. safe polymer Li-ion battery group structure according to claim 3, is characterized in that: described brace is for connecting nickel sheet, connecting copper sheet or flexible print wiring board.
5. safe polymer Li-ion battery group structure according to claim 3, is characterized in that: described lug is connected by Laser Welding with described brace, spot welding connection, ultrasonic bond connect or soldering connect.
6. safe polymer Li-ion battery group structure according to claim 3, it is characterized in that: between described lug and described brace, be provided with insulating paper, be filled with compression foam between adjacent described lug, and be wound with polymer tapes outside the entirety of described lug and described compression foam composition.
7. safe polymer Li-ion battery group structure according to claim 1, it is characterized in that: be provided with adhesive linkage between adjacent described polymer Li-ion battery, the position, angle of described battery pack is provided with compression foam.
8. safe polymer Li-ion battery group structure according to claim 1, it is characterized in that: described temperature control circuit breaker is arranged between the closedtop limit of two adjacent described polymer Li-ion batteries, and described temperature control circuit breaker and and described temperature control breaker contacts described polymer Li-ion battery top between be provided with thermal conductive material layer.
9. safe polymer Li-ion battery group structure according to claim 1, it is characterized in that: described shell comprises left shell, right shell body and upper cover, described left shell and described right shell body form accommodation space jointly, and described upper cover covers the upper end at described left shell and described right shell body and described upper cover is positioned at directly over described battery pack;
The first main casing that described left shell comprises the first drain pan, the first top shell and is arranged between described first top shell and described first drain pan; The second main casing described right shell body comprising the second drain pan, the second top shell and be arranged between described second top shell and described second drain pan; Described first drain pan and described second drain pan form the supporting construction for supporting described battery pack jointly, and described first top shell is all connected with described upper cover with described second top shell.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080487.9U CN204407434U (en) | 2015-02-04 | 2015-02-04 | A kind of safe polymer Li-ion battery group structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520080487.9U CN204407434U (en) | 2015-02-04 | 2015-02-04 | A kind of safe polymer Li-ion battery group structure |
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| CN204407434U true CN204407434U (en) | 2015-06-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600371A (en) * | 2015-02-04 | 2015-05-06 | 东莞新能德科技有限公司 | Safe polymer lithium ion battery pack structure and assembly process thereof |
| CN105140455A (en) * | 2015-06-29 | 2015-12-09 | 柳州蚊敌香业有限公司 | Lithium battery module for electric vehicle |
| CN105470442A (en) * | 2015-11-13 | 2016-04-06 | 王晓秋 | Lithium battery pack module with high safety design |
-
2015
- 2015-02-04 CN CN201520080487.9U patent/CN204407434U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600371A (en) * | 2015-02-04 | 2015-05-06 | 东莞新能德科技有限公司 | Safe polymer lithium ion battery pack structure and assembly process thereof |
| CN105140455A (en) * | 2015-06-29 | 2015-12-09 | 柳州蚊敌香业有限公司 | Lithium battery module for electric vehicle |
| CN105470442A (en) * | 2015-11-13 | 2016-04-06 | 王晓秋 | Lithium battery pack module with high safety design |
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Effective date of registration: 20200722 Address after: Room 413, unit 2, building 1, No. 9, Keji 9th Road, Songshanhu Park, Dongguan City, Guangdong Province 523000 Patentee after: Dongguan xinneng'an Technology Co.,Ltd. Address before: 523000, Guangdong, Liaobu Town, Dongguan Tong village youth field industrial zone Patentee before: Dongguan NVT Technology Co.,Ltd. |