CN203596379U - Power battery pack for electric bicycle - Google Patents
Power battery pack for electric bicycle Download PDFInfo
- Publication number
- CN203596379U CN203596379U CN201320740384.1U CN201320740384U CN203596379U CN 203596379 U CN203596379 U CN 203596379U CN 201320740384 U CN201320740384 U CN 201320740384U CN 203596379 U CN203596379 U CN 203596379U
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- China
- Prior art keywords
- support
- battery pack
- battery
- power battery
- level board
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- Expired - Lifetime
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- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
Images
Classifications
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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
Abstract
The utility model discloses a power battery pack for an electric bicycle. A battery module comprises two groups of module units which are connected in parallel and spliced together, wherein each group of module units comprises a plurality of battery cells which are in parallel in the axial direction, a bracket A and a bracket B which are paired and used for clamping the battery cells, and connecting sheets used for series connection and parallel connection of the battery cells, and each of the bracket A and the bracket B is provided with hole seats corresponding to the battery cells in shape and number; two ends of each battery cell are arranged in the corresponding hole seats; the connecting sheets are fixedly mounted in outer-side grooves corresponding to the hole seats; the battery module further comprises vertical plates and horizontal plates, the vertical plates are mounted between the brackets A and the brackets B, and are parallel to end surfaces of two longitudinal sides of the brackets A and the brackets B, and the horizontal plates are arranged on two longitudinal sides of the brackets A and the brackets B, and are fixedly connected with the vertical plates through bolts. By adopting the power battery pack, the mechanical safety performance is high, the heat dissipation performance is good, the packaging speed is high, and the power battery pack is suitable for the occasion with a plurality of various battery cells, and is flexible and convenient to assemble.
Description
Technical field
The utility model relates to battery technology field, relates in particular to a kind of power battery pack for electric bicycle.
Background technology
At present, it is that 18650 lithium cells or the Soft Roll Polymer battery core of about 2.5Ah carried out also, connect that battery of electric bicycle (lithium battery) generally adopts single battery core capacity, is that bicycle motor is powered thereby form power battery pack.The more authoritative standard to electric bicycle power battery pack test authentication is the BATSO that German TUV carries out in the world, wherein electric bicycle power battery pack mechanical safety has been proposed to following requirement: a. extruding test (the metal semicolumn with 30cm diameter carries out both direction 30% amount of compression or the maximum compression failure that is no more than 100kg to battery pack); B. shock-testing (battery pack being carried out to the impact test of totally 18 times of three forward and reverse and XYZ three-dimensionals); C. drop test (1m is high, and cement flooring is freely fallen for 3 times); Above test result must not explode, not on fire, no leakage.Current battery pack still can not meet the requirement of BATSO aspect mechanical safety.In view of the above problems, 18650 cylindrical battery cores are used for electric bicycle power battery pack by the special one that proposes, and can meet the encapsulating structure that BATSO requires aspect mechanical safety.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of power battery pack for electric bicycle is provided, and its machine security performance is high, perfect heat-dissipating, and package speed is fast, is applicable to the occasion that various battery core numbers are many, and assembling is flexible.
In order to solve the problems of the technologies described above, the utility model provides a kind of power battery pack for electric bicycle, comprise shell, front end housing, rear end cap and setting battery modules in the enclosure, wherein, described battery modules comprises two groups of module group units of splicing side by side, described module group unit comprises the battery core of multiple axially parallels, for support A and the support B of clamping battery core and pairing mutually, with for connecting between battery core, the brace being connected in parallel, described support A and support B are equipped with and described battery core shape, the hole seat that number is corresponding, the two ends of each described battery core are separately positioned in corresponding described hole seat, described brace is fixedly mounted on the outside groove of described hole seat correspondence, described battery modules is also provided with vertical plate and level board, described vertical plate is arranged between described support A and support B, and be parallel to longitudinal both sides end face of described support A and support B, described level board is arranged on the vertical both sides of support A and support B described in two groups, and is fixedly connected with described vertical plate by screw.
As the further improvement of technique scheme, described support A dual-side portion is provided with the groove that can place for described level board, and described level board is concordant with described support A limit portion.
As the further improvement of technique scheme, between described support A and described support B, be connected fastening with nut by screw rod.
Further, between the seat of each described hole, be provided with the interval of certain distance; Region, the two side areas of corresponding described vertical plate and longitudinal two end regions of corresponding described support A and support B that the corresponding described screw rod in described interval passes are respectively equipped with next door.
As the further improvement of technique scheme, described battery modules is also provided with the PCB between the positive and negative electrode exit that is fixedly connected on described brace, described PCB is fixedly mounted on the vertical side leading portion of described battery modules by PCB support, be arranged in parallel with described level board.
Preferably, described vertical plate and level board are metallic plate; Described shell is metal shell.
Implement a kind of power battery pack for electric bicycle of the present utility model, compared with prior art, there is following beneficial effect:
(1) battery core of the present utility model is fixed by support A and support B clamping, and the inner structural strength of battery modules is high, can make battery core in the time that vibrations occur whole battery pack, not produce skew, good seismic performance; By the interval between the hole seat on support A and support B, make to have certain space between battery core and battery core, the heat producing when battery core can be worked more effectively distributes, and improves the heat dispersion of total; Meanwhile, the space between battery core and battery core makes battery core be easier to operation at assembling time ratio, improves the packaging efficiency of battery pack;
(2) battery modules of the present utility model is by vertical plate and level board fixed support, and the external structure intensity of battery modules is high, can effectively bear and transmit the battery pack external world respectively to load, make battery pack there is good shock resistance, anti-extrusion performance; And easy for installation, when level board is connected by screw fastening with vertical plate, also two groups of module group units is spliced and are fixed together;
(3) the utility model adopts the mode of turning parts into the whole, by the next door on vertical plate and regional area, whole battery pack is divided into the battery core assembled unit in multiple regions, when improving between inner each battery core assembled unit of battery pack structural stability, further improve the overall structure stability of battery pack;
(4) shell of the present utility model, vertical plate and level board all adopt metal material, and battery modules is contained in metal shell, make whole battery pack have good anti-dropping capability; , can also effectively the heat of battery modules inside be delivered in external environment meanwhile, further improve the heat dispersion of total;
(5) the utility model can be equipped with applicable support A and support B and rational level board and vertical plate are set according to the requirement of actual battery core quantity, meet the occasion that various battery core quantity is many and guaranteed the machine security performance that battery pack is every, assembling very flexible.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing to embodiment is briefly described.
Fig. 1 is the blast structural representation of an embodiment of a kind of power battery pack for electric bicycle of the utility model;
Fig. 2 is the blast structural representation of battery modules in Fig. 1 embodiment;
Fig. 3 is the structural representation of Fig. 1 embodiment medium-height trestle A;
Fig. 4 is the structural representation of Fig. 1 embodiment medium-height trestle B;
Fig. 5 is the structural representation after Fig. 2 assembles;
Fig. 6 is the structural representation after Fig. 1 assembles.
Embodiment
Further describe embodiment of the present utility model below in conjunction with accompanying drawing.
In conjunction with referring to shown in Fig. 1～6, an embodiment of the present utility model, comprise shell 301, front end housing 306, rear end cap 302 and be arranged on the battery modules 305 in shell 301, wherein, above-mentioned battery modules 305 comprises two groups of side by side module group units of splicing, and this module group unit comprises the battery core 109 of multiple axially parallels, for the support A104 of clamping battery core 109 and pairing mutually and support B106 and the brace 108 that connects for series, parallel between battery core 109; Above-mentioned support A104 and support B106 are equipped with the hole seat 201 corresponding with above-mentioned battery core 109 shapes, number, the two ends of each above-mentioned battery core 109 are separately positioned in corresponding above-mentioned hole seat 201, and above-mentioned brace 108 is fixedly mounted on the outside groove 202 of above-mentioned hole seat 201 correspondences.In an embodiment, this battery modules is connected by first 5 battery cores in parallel 10 battery core 109 modes of connecting again by two pack support A104 and support B106 by 50 battery cores, every battery core 109 is all placed in the corresponding aperture seat 201 of support A104 and support B106, by screw rod 107 and nut 105, battery core 109 is fastened between support A104 and support B106, simultaneously, the electrode of each battery core 109 is respectively through hole seat 201, and be fixedly connected with brace 108 by welding, certainly, no matter be between support A104 and support B106 or between battery core 109 and brace 108, can also be fixedly connected with by alternate manner.Battery core, by the above-mentioned mode that is connected and fixed, has improved the inner structural strength of battery modules, can make battery core not produce skew in the time that vibrations occur whole battery pack, makes battery pack have good anti-seismic performance.
Above-mentioned battery modules 305 is also provided with vertical plate 103 and level board 102, above-mentioned vertical plate 103 is arranged between above-mentioned support A104 and support B106, and be parallel to longitudinal both sides end face of above-mentioned support A104 and support B106, above-mentioned level board 102 is arranged on the vertical both sides of two groups of above-mentioned support A104 and support B106, and is fixedly connected with above-mentioned vertical plate 103 by screw 101.In an embodiment, between each pack support A104 and support B106, be provided with two vertical plates 103, be totally 4 of vertical plates 103 in battery modules 305, lastblock level board 102 is covered respectively in vertical both sides in battery modules 305, on the position of level board 102 corresponding every vertical plates 103, be respectively equipped with a counterbore, correspondingly, the vertical both sides of every vertical plate 103 are respectively equipped with a screwed hole.When level board 102 is fastenedly connected by screw 101 with vertical plate 103, also two groups of module group units are spliced and are fixed together, to realize the whole battery modules 305 of fixed support, it is installed more for convenience, improve the external structure intensity of battery modules, can effectively bear and transmit the battery pack external world respectively to load, make battery pack there is good shock resistance, anti-extrusion performance.
Above-mentioned support A104 dual-side portion is provided with the groove 203 that can place for above-mentioned level board 102, and above-mentioned level board 102 is concordant with above-mentioned support A104 limit portion.Utilize this groove 203, can will between two groups of module group units, carry out fast and accurate location by level board on the one hand, misplace when avoiding module group unit splicing; Can make on the other hand level board concordant with support, thereby increase the contact area between shell, can be conducive to bear and transmitted load.
Further, 201 of each above-mentioned hole seats are provided with the interval 204 of certain distance, by this interval 204, make to exist between battery core and battery core certain space, the heat producing when battery core can be worked more effectively distributes, improve the heat dispersion of total, but also make battery core be more prone to operation in the time of assembling, improve the packaging efficiency of battery pack.Longitudinal two end regions of the region that the corresponding above-mentioned screw rod 107 in above-mentioned interval 204 passes, the two side areas of corresponding above-mentioned vertical plate 103 and corresponding above-mentioned support A104 and support B106 are respectively equipped with next door 205.Can adopt like this mode of turning parts into the whole, by the next door 205 on vertical plate 103 and regional area, whole battery pack is divided into the battery core assembled unit in multiple regions, when improving between inner each battery core assembled unit of battery pack structural stability, further improve the resistance to overturning of battery pack.
Above-mentioned battery modules 305 is also provided with the PCB111 between the positive and negative electrode exit that is fixedly connected on above-mentioned brace 108, above-mentioned PCB111 is fixedly mounted on the vertical side leading portion of above-mentioned battery modules 305 by PCB support 110, be arranged in parallel with above-mentioned level board 102.In an embodiment, PCB111 is placed in PCB support 110, and PCB support 110 is insulating material, and PCB support 110 plays the effect of insulation and protection PCB111 like this.In the time that battery pack is impacted or push, because the present position of PCB111 is lower than the horizontal level of level board 102 upper surfaces, avoided PCB111 directly to contact with shell 301, thereby the impact that is not hit or pushes guarantee the fail safe of battery pack.
Preferably, above-mentioned vertical plate 103 and level board 102 are metallic plate; Above-mentioned shell 301 is metal shell.Battery modules 305 is contained in metal shell 301, makes whole battery pack there is good anti-dropping capability; , can also effectively the heat of battery modules inside be delivered in external environment meanwhile, further improve the heat dispersion of total.
In addition, the utility model can also be equipped with applicable support A and support B and rational level board and vertical plate are set according to the requirement of actual battery core quantity, to meet the occasion that various battery core quantity is many and to guarantee the every machine security performance of battery pack, assemble very flexible.
Encapsulation step is as follows:
(1) one end of battery core 109 is put on the hole seat 201 of support A104 or support B106, hole seat 201 by corresponding support B106 or support A104 is inserted in the other end of battery core 109, by bolt 107 and screw thread 105, battery core 109 is fixed between support A104 and support B106;
(2) electrode of each battery core 109 is passed respectively to hole seat 201, and be fixedly connected with brace 108 by welding;
(3) vertical plate 103 is packed between battery core group, cover level board 102 in position corresponding to the vertical both sides of vertical plate 103, and by screw 101, vertical plate 103 is fixedly connected with level board 102;
(4) PCB support 110 is fixedly mounted on to the vertical side leading portion of battery modules 305, PCB111 is fixedly mounted on PCB support 110, and corresponding with the positive and negative electrode exit of brace 108;
(5) brace 108 of two groups of module group unit splicing series connection place is fixed together by welding, the positive and negative electrode exit of brace 108 is welded in respectively to PCB111 simultaneously;
(6) battery modules 305 is packed in shell 301, the rear end cap 302 that is provided with the front end housing 306 of taillight 307 and is provided with battery lock 304 is fastened on respectively to the two ends of shell 301 by screw 303.
Above disclosed is only a kind of preferred embodiment of the utility model, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim, still belongs to the scope that the utility model is contained.
Claims (7)
1. the power battery pack for electric bicycle, comprise shell, front end housing, rear end cap and setting battery modules in the enclosure, it is characterized in that: described battery modules comprises two groups of module group units of splicing side by side, described module group unit comprises the battery core of multiple axially parallels, for support A and the support B of clamping battery core and pairing mutually, with for connecting between battery core, the brace being connected in parallel, described support A and support B are equipped with and described battery core shape, the hole seat that number is corresponding, the two ends of each described battery core are separately positioned in corresponding described hole seat, described brace is fixedly mounted on the outside groove of described hole seat correspondence, described battery modules is also provided with vertical plate and level board, described vertical plate is arranged between described support A and support B, and be parallel to longitudinal both sides end face of described support A and support B, described level board is arranged on the vertical both sides of support A and support B described in two groups, and is fixedly connected with described vertical plate by screw.
2. power battery pack as claimed in claim 1, is characterized in that: described support A dual-side portion is provided with the groove that can place for described level board, and described level board is concordant with described support A limit portion.
3. power battery pack as claimed in claim 1, is characterized in that: between described support A and described support B, be connected fastening by screw rod with nut.
4. power battery pack as claimed in claim 3, is characterized in that: the interval that is provided with certain distance between the seat of each described hole; Region, the two side areas of corresponding described vertical plate and longitudinal two end regions of corresponding described support A and support B that the corresponding described screw rod in described interval passes are respectively equipped with next door.
5. power battery pack as claimed in claim 1, it is characterized in that: described battery modules is also provided with the PCB between the positive and negative electrode exit that is fixedly connected on described brace, described PCB is fixedly mounted on the vertical side leading portion of described battery modules by PCB support, be arranged in parallel with described level board.
6. power battery pack as claimed in claim 1, is characterized in that: described vertical plate and level board are metallic plate.
7. power battery pack as claimed in claim 1, is characterized in that: described shell is metal shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740384.1U CN203596379U (en) | 2013-11-21 | 2013-11-21 | Power battery pack for electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740384.1U CN203596379U (en) | 2013-11-21 | 2013-11-21 | Power battery pack for electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203596379U true CN203596379U (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320740384.1U Expired - Lifetime CN203596379U (en) | 2013-11-21 | 2013-11-21 | Power battery pack for electric bicycle |
Country Status (1)
| Country | Link |
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| CN (1) | CN203596379U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577212A (en) * | 2014-12-30 | 2015-04-29 | 深圳市科陆电子科技股份有限公司 | Combination structure and method of lithium battery packs |
| CN105109612A (en) * | 2015-09-18 | 2015-12-02 | 优科能源(漳州)有限公司 | Power supply structure on backseat bracket of electric bicycle |
| CN113619445A (en) * | 2021-07-09 | 2021-11-09 | 浙江天宏锂电股份有限公司 | Lithium iron phosphate battery pack control system and method for electric motorcycle |
-
2013
- 2013-11-21 CN CN201320740384.1U patent/CN203596379U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577212A (en) * | 2014-12-30 | 2015-04-29 | 深圳市科陆电子科技股份有限公司 | Combination structure and method of lithium battery packs |
| CN104577212B (en) * | 2014-12-30 | 2018-06-19 | 深圳市科陆电子科技股份有限公司 | The composite structure and method of lithium battery pack |
| CN105109612A (en) * | 2015-09-18 | 2015-12-02 | 优科能源(漳州)有限公司 | Power supply structure on backseat bracket of electric bicycle |
| CN113619445A (en) * | 2021-07-09 | 2021-11-09 | 浙江天宏锂电股份有限公司 | Lithium iron phosphate battery pack control system and method for electric motorcycle |
| WO2023279651A1 (en) * | 2021-07-09 | 2023-01-12 | 浙江天宏锂电股份有限公司 | Lithium iron phosphate battery pack control system and method for electric motorcycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161226 Address after: 510663 Guangzhou science and Technology Industrial Development Zone, Guangdong Province, high science and technology in the south of the city of the road No. three (1) Dong Patentee after: GUANGZHOU LIANGSHI COMMUNICATION APPLIANCE Co.,Ltd. Address before: 510663 Guangzhou science and Technology Development Zone, high tech Industrial Development Zone, Guangdong City, South Road, No. three, No. 39 Patentee before: Guangzhou Mingmei Electronics Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 510670 Guangzhou Guangzhou High-tech Industrial Development Zone Science City, Guangdong Province, the first, second and third floors of No. 39 (1) South Cloud Road Patentee after: GUANGZHOU TWS NEW ENERGY CO.,LTD. Address before: 510663 No. 39 (1), South Yun three road, science and Technology City, Guangzhou high tech Industrial Development Zone, Guangdong Patentee before: GUANGZHOU LIANGSHI COMMUNICATION APPLIANCE Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 510000 the first floor, second floor and third floor of Building 1, No.39, Yunsan Road, Science City, Guangzhou high tech Industrial Development Zone, Guangdong Province Patentee after: Guangzhou Mingmei new energy Co.,Ltd. Address before: 510670 Guangzhou Guangzhou High-tech Industrial Development Zone Science City, Guangdong Province, the first, second and third floors of No. 39 (1) South Cloud Road Patentee before: GUANGZHOU TWS NEW ENERGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |
|
| CX01 | Expiry of patent term |