CN205388983U - Novel flexible coupling conducting structure - Google Patents
Novel flexible coupling conducting structure Download PDFInfo
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- CN205388983U CN205388983U CN201620119367.XU CN201620119367U CN205388983U CN 205388983 U CN205388983 U CN 205388983U CN 201620119367 U CN201620119367 U CN 201620119367U CN 205388983 U CN205388983 U CN 205388983U
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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 novel flexible coupling conducting structure belongs to the manufacturing technical field of lithium cell group, including flexible coupling area body, a plurality of electrically conductive articulamentum and a plurality of first body that welds, flexible coupling area body includes a conductive connection part, the 2nd conductive connection part and transition portion, and a conductive connection part's one end is connected with the 2nd conductive connection part's one end through transition portion, a conductive connection part's surface, the 2nd conductive connection part's surface respectively with electrically conductive articulamentum through the first body coupling that welds. The utility model provides a novel flexible coupling conducting structure adopts welded structure to replace traditional electric plating layer structure, makes portably, and easy operation, the operability is stronger, and is with low costs moreover, and it uses environmental protection more, and is pollution -free to the environment, and process obtains control more easily, and the integrative structure that fuses of the formation after the welding, its surface is even more, firm, has better electrically conductive characteristic.
Description
Technical field
This utility model relates to lithium battery group manufacturing technology field, in particular to a kind of novel conductive structure that is flexible coupling.
Background technology
Along with development and the level of consumption of society improve, automobile uses more and more universal, and global environmental pollution and oil shortage problem are also more and more prominent.Then new-energy automobile arises at the historic moment, wherein electric automobile environmental protection, noiselessness.Its electrokinetic cell used is using lithium battery as the energy, via the battery module forming specified vol after a number of battery cell series and parallel, and the loop that is conductively connected between battery module is completed by the conductive structure that is flexible coupling, it needs to possess to flexibly connect feature multiple with good conductive characteristic.
Being flexible coupling of using in current industry typically uses aluminum matter or the copper band that is flexible coupling, and after being connected with conductive connection part, forms at its electroplate or mode tin plating, nickel plating.Owing to plating is exactly the industry of a high harm, and product electroplating pretreatment process is extremely complex, general traditional handicraft uses acid solution that workpiece is processed, environmental pollution is heavier, working environment is poor, the residual acid that simultaneously maximum drawback is after element pickling rust cleaning is difficult to rinse well, after workpiece plating, the life cycle time is not long, it may appear that corrosion phenomena destroys electrodeposited coating surface, has a strong impact on product appearance and inherent quality.
Utility model content
This utility model provides a kind of novel conductive structure that is flexible coupling, it is intended to improve the problems referred to above.
This utility model is achieved in that
A kind of novel conductive structure that is flexible coupling, including the band body that is flexible coupling, multiple conductive tie layers and multiple first weldering body, the described band body that is flexible coupling includes the first conductive connection part, the second conductive connection part and transition part, one end of described first conductive connection part is connected with one end of described second conductive connection part by described transition part, the surface of described first conductive connection part, described second conductive connection part surface be connected by described first weldering body with described conductive tie layers respectively.
Further, in preferred embodiment of the present utility model, described first weldering body is that ultra-sonic welded weldering body or Diffusion Welding weldering body or high-frequency welding weld body.
Merge with conductive tie layers each through ultra-sonic welded or Diffusion Welding or ratio-frequency welding mode between first conductive connection part and conductive tie layers, between the second conductive connection part and conductive tie layers, enhance electric conductivity, protection coating Oxidation can be played again.
Further, in preferred embodiment of the present utility model, the described conductive structure that is flexible coupling also includes the second weldering body, the described band body that is flexible coupling is stacked gradually by multiple lamellas and constitutes, described first conductive connection part be flexible coupling described in multiple described lamella correspondences body wherein one end part by described second weldering body connect is formed, described second conductive connection part be flexible coupling described in multiple described lamella correspondences body the other end part by described second weldering body connection formed.
The band body that is flexible coupling is to be stacked gradually by multiple lamellas to be formed, and adopts this paste layer structure, the thickness of the band body that makes to be flexible coupling more uniformly, structure more firm, possess better electric conductivity, and life cycle be longer.
Further, in preferred embodiment of the present utility model, described second weldering body is ultra-sonic welded weldering body or Diffusion Welding weldering body.
First conductive connection part and the second conductive connection part are merged welded together formation by multiple lamellas by the mode of ultra-sonic welded or Diffusion Welding respectively, the first conductive connection part and the second conductive connection part is made to have good hardness and intensity, it is possible to be work perfectly well as a kind of terminal that connects and connect for loop.
Further, in preferred embodiment of the present utility model, described lamella is aluminium foil layer or copper foil layer.
Lamella adopts aluminium foil layer or copper foil layer so that the band body that is flexible coupling after stacking connection has significantly high conductive characteristic, forms very strong flexible structure after multiple-layer stacked.
Further, in preferred embodiment of the present utility model, the described transition part part in the middle part of body that is flexible coupling described in multiple described lamella correspondences stacks gradually and is formed.
Transition part is simply stacked gradually by a part for multiple lamellas and is formed, but is not welded to connect, and forms the flexible transition structure in the middle part of the band body that is flexible coupling so that the band body that is flexible coupling has better structure adaptability.
Further, in preferred embodiment of the present utility model, described in the conductive structure that is flexible coupling also include insulated sleeve, described insulated sleeve is sheathed on outside described transition part.
Further, in preferred embodiment of the present utility model, described transition part is arc, and described insulated sleeve is arc shrouds.
Transition part adopts arcuate structure, enhances the flexible transition effect of transition part, enhances the structure adaptability of the band body that is flexible coupling.
Further, in preferred embodiment of the present utility model, described first conductive connection part and be respectively arranged with fixing hole on described second conductive connection part, described conductive tie layers is provided with through hole in the position of corresponding described fixing hole.
Pass through fixing hole, it is possible to the first conductive connection part and the second conductive connection part are fixedly connected respectively well, fixing more firm.
Further, in preferred embodiment of the present utility model, the surface that the surface that described first conductive connection part is connected with described conductive tie layers, described second conductive connection part are connected with described conductive tie layers is shiny surface.
The surface of the first conductive connection part and the second conductive connection part can pass through polishing and cleaning process wipe oil and burr foreign body with conductive tie layers before welding, and forms more smooth surface, it is simple to weld better.
The novel conductive structure that is flexible coupling that this utility model provides provides the benefit that: the first conductive connection part and the second conductive connection part weld body each through first and be connected with conductive tie layers respectively, Welding Structure is adopted to instead of traditional electrodeposited coating structure, this conductive structure that is flexible coupling is made to manufacture simplicity, simple to operate, operability is higher, and cost is low, and its application is more environmentally-friendly, environmentally safe, technical process is easily available control；And the first conductive connection part after welding forms, with conductive tie layers, the structure that one merges with conductive tie layers, the second conductive connection part respectively, its surface more uniformly, firmly, has better conductive characteristic.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, the accompanying drawing used required in embodiment will be briefly described below, it is to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope it is not construed as, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings.
The novel conductive structure structural representation before conductive tie layers connects that is flexible coupling that Fig. 1 provides for this utility model first embodiment；
The novel conductive structure structural representation after conductive tie layers connects that is flexible coupling that Fig. 2 provides for this utility model first embodiment；
The cutting structural representation of the first conductive connection part of the novel conductive structure that is flexible coupling that Fig. 3 provides for this utility model first embodiment；
The structural representation of the novel conductive structure that is flexible coupling that Fig. 4 provides for this utility model the second embodiment.
Figure acceptance of the bid note is respectively as follows:
Be flexible coupling band body 10；First conductive connection part 101；Second conductive connection part 102；Transition part 103；Lamella 104；Fixing hole 105；Conductive tie layers 20；First weldering body 30；Second weldering body 40；Insulated sleeve 50.
Detailed description of the invention
Being flexible coupling of using in current battery industry typically uses aluminum matter or the copper band that is flexible coupling, and after being connected with conductive connection part, forms at its electroplate or mode tin plating, nickel plating.Owing to plating is exactly the industry of a high harm, and product electroplating pretreatment process is extremely complex, general traditional handicraft uses acid solution that workpiece is processed, environmental pollution is heavier, working environment is poor, the residual acid that simultaneously maximum drawback is after element pickling rust cleaning is difficult to rinse well, after workpiece plating, the life cycle time is not long, it may appear that corrosion phenomena destroys electrodeposited coating surface, has a strong impact on product appearance and inherent quality.
In consideration of it, designer of the present utility model is by long-term exploration and trial, and experiment repeatedly and effort, constantly reform and innovation, devise a kind of novel conductive structure that is flexible coupling, adopt Welding Structure to instead of traditional electrodeposited coating structure, not only manufacture simplicity, simple to operate, operability is higher, and cost is low, and its application is more environmentally-friendly, environmentally safe, technical process is easily available control；And forming the structure that one merges after welding, its surface more uniformly, firmly, has better conductive characteristic.
For making the purpose of this utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is a part of embodiment of this utility model, rather than whole embodiments.Generally can with various different configurations arrange and design with the assembly of this utility model embodiment that illustrate described in accompanying drawing herein.Therefore, below the detailed description of the embodiment of the present utility model provided in the accompanying drawings is not intended to limit claimed scope of the present utility model, but is merely representative of selected embodiment of the present utility model.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
First embodiment
Refer to Fig. 1～Fig. 3, present embodiments provide a kind of novel conductive structure that is flexible coupling, this conductive structure that is flexible coupling includes be flexible coupling band body 10, multiple conductive tie layers 20 and multiple first weldering body 30, the band body 10 that is flexible coupling includes the first conductive connection part the 101, second conductive connection part 102 and transition part 103, one end of first conductive connection part 101 is connected with one end of the second conductive connection part 102 by transition part 103, the surface of the first conductive connection part 101, the second conductive connection part 102 surface pass through first respectively with conductive tie layers 20 and weld body 30 and be connected.
Wherein conductive tie layers 20 is a kind of not only played enhancing electric conductivity but also can play the silver layer of surface oxidation protective action, tin layers or nickel dam etc..
In the present embodiment, welding the connector that after body is welding, welding material is formed, as preferably, the first weldering body 30 is that ultra-sonic welded welds body, Diffusion Welding welds body or high-frequency welding welds body.Wherein, ultra-sonic welded weldering body is the connector that after adopting ultra-sonic welded, welding material is formed, and Diffusion Welding weldering body is the connector that after adopting Diffusion Welding, welding material is formed, and high-frequency welding weldering body is the connector that after adopting high-frequency welding, welding material is formed.
Merge with conductive tie layers 20 each through ultra-sonic welded or Diffusion Welding or ratio-frequency welding mode between first conductive connection part 101 and conductive tie layers 20, between the second conductive connection part 102 and conductive tie layers 20, enhance electric conductivity, protection coating Oxidation can be played again.
Conductive tie layers 20, when welding with the first conductive connection part 101 and the second conductive connection part 102 respectively, can adopt two-sided form or one side form to merge, solid and reliable.For the first conductive connection part 101, say, that the upper and lower surface of the first conductive connection part 101 can weld with a conductive tie layers 20 respectively, and this is two-sided form；The upper and lower surface of the first conductive connection part 101 can also be that only wherein one side is welded with conductive tie layers 20, and this is one side form.The situation of the second conductive connection part 102 is similar.
The novel conductive structure that is flexible coupling that the present embodiment provides also includes the second weldering body 40.The band body 10 that is flexible coupling is stacked gradually by multiple lamellas 104 and constitutes, first conductive connection part 101 is connected by the be flexible coupling part of wherein one end of body of multiple lamella 104 correspondences formed by the second weldering body 40, and the second conductive connection part 102 is connected by the second weldering body 40 formed by the be flexible coupling part of the other end of body of multiple lamella 104 correspondences.
It is to say, be flexible coupling, band body 10 is to be stacked gradually by multiple lamellas 104 to be formed.Each lamella 104 of this end is connected by integral solder and is fused together by be flexible coupling wherein one end of band body 10, namely make to be connected by the second weldering body 40 between two lamellas 104 of this end arbitrary neighborhood through integral solder, specifically, the relative surface of adjacent two lamellas 104 is connected by the second weldering body 40, and the structure after fusion forms the first conductive connection part 101；Each lamella 104 of this end is connected also by welding and is fused together by the other end of band body 10 of being flexible coupling, same, connected by the second weldering body 40 between two lamellas 104 of this end arbitrary neighborhood, also be adjacent two lamellas 104 relative surface by second weldering body 40 connect, the structure after fusion forms the second conductive connection part 102.Weld after fusion completes at each lamella 104, then conductive tie layers 20 is welded with the first conductive connection part 101 and the second conductive connection part 102 respectively.
Adopt this paste layer structure, the thickness of the band body 10 that makes to be flexible coupling more uniformly, structure more firm, possess better electric conductivity, and life cycle be longer.
It addition, be flexible coupling, the specification of band body 10 is designed with reference to required rated current size.Wherein, lamella 104 is preferably aluminium foil layer or copper foil layer.Lamella 104 adopts aluminium foil layer or copper foil layer so that the band body 10 that is flexible coupling after stacking connection has significantly high conductive characteristic, forms very strong flexible structure after multiple-layer stacked.
Wherein, the second weldering body 40 is preferably ultra-sonic welded weldering body or Diffusion Welding weldering body.First conductive connection part 101 and the second conductive connection part 102 are merged welded together formation by the end of multiple lamellas 104 by the mode of ultra-sonic welded or Diffusion Welding respectively, the first conductive connection part 101 and the second conductive connection part 102 is made to have good hardness and intensity, it is possible to be work perfectly well as a kind of terminal that connects and connect for loop.
In the present embodiment, transition part 103 is stacked gradually formed by multiple lamella 104 correspondences part in the middle part of body that is flexible coupling.But, transition part 103 is simply stacked gradually by a part for multiple lamellas 104 and is formed, and is not welded to connect, and forms the flexible transition structure in the middle part of the band body 10 that is flexible coupling so that the band body 10 that is flexible coupling has better structure adaptability.
The conductive structure that is flexible coupling also includes insulated sleeve 50, and insulated sleeve 50 is sheathed on outside transition part 103.Can ensure that the insulation effect of transition part 103.
Being respectively arranged with fixing hole 105 on first conductive connection part 101 and the second conductive connection part 102, conductive tie layers 20 is provided with through hole in the position of corresponding fixing hole 105.Fixing hole 105 is for being connected with the fixing of connection member, it is achieved galvanic circle reliably.Well the first conductive connection part 101 and the second conductive connection part 102 can be fixedly connected with connection member respectively by fixing hole 105, fixing more firm.
The surface that surface that first conductive connection part 101 is connected with conductive tie layers 20, the second conductive connection part 102 are connected with conductive tie layers 20 is shiny surface.
The surface of the first conductive connection part 101 and the second conductive connection part 102 can pass through polishing and cleaning process wipe oil and burr foreign body with conductive tie layers 20 before welding, and forms more smooth surface, it is simple to weld better.The shiny surface of indication is relative smooth herein, is compare with the initial surface compared with polishing and cleaning process.
In sum, first conductive connection part 101 and the second conductive connection part 102 weld body 30 each through first and are connected with conductive tie layers 20 respectively, Welding Structure is adopted to instead of traditional electrodeposited coating structure, making this conductive structure that is flexible coupling manufacture simplicity, simple to operate, operability is higher, and cost is low, its application is more environmentally-friendly, and environmentally safe, technical process is easily available control；And the first conductive connection part 101 after welding forms, with conductive tie layers the 20, second conductive connection part 102 and conductive tie layers 20, the structure that one merges respectively, and its surface more uniformly, firmly, has better conductive characteristic.
Second embodiment
The novel conductive structure that is flexible coupling that the present embodiment provides, its basic structure is identical with first embodiment with the technique effect of principle and generation, for being briefly described, the not mentioned part of the present embodiment part, it is referred in first embodiment corresponding contents.The novel conductive structure that is flexible coupling that the present embodiment provides is distinctive in that from first embodiment the shape of transition part 103 is different.
Referring to Fig. 4, in the present embodiment, transition part 103 is arc, and insulated sleeve 50 is arc shrouds.Transition part 103 adopts arcuate structure, enhances the flexible transition effect of transition part 103, enhances the structure adaptability of the band body 10 that is flexible coupling.
In description of the present utility model, it will be appreciated that, term " on ", D score, " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the equipment of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more these features.In description of the present utility model, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in this utility model as the case may be.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can include the first and second features and directly contact, it is also possible to include the first and second features and be not directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " include fisrt feature directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height less than second feature.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (10)
1. the conductive structure that is flexible coupling a kind novel, it is characterized in that, including the band body that is flexible coupling, multiple conductive tie layers and multiple first weldering body, the described band body that is flexible coupling includes the first conductive connection part, the second conductive connection part and transition part, one end of described first conductive connection part is connected with one end of described second conductive connection part by described transition part, the surface of described first conductive connection part, described second conductive connection part surface be connected by described first weldering body with described conductive tie layers respectively.
2. the novel conductive structure that is flexible coupling according to claim 1, it is characterised in that described first weldering body is that ultra-sonic welded weldering body or Diffusion Welding weldering body or high-frequency welding weld body.
3. the novel conductive structure that is flexible coupling according to claim 1, it is characterized in that, the described conductive structure that is flexible coupling also includes the second weldering body, the described band body that is flexible coupling is stacked gradually by multiple lamellas and constitutes, described first conductive connection part be flexible coupling described in multiple described lamella correspondences body wherein one end part by described second weldering body connect is formed, described second conductive connection part be flexible coupling described in multiple described lamella correspondences body the other end part by described second weldering body connection formed.
4. the novel conductive structure that is flexible coupling according to claim 3, it is characterised in that described second weldering body is ultra-sonic welded weldering body or Diffusion Welding weldering body.
5. the novel conductive structure that is flexible coupling according to claim 3, it is characterised in that described lamella is aluminium foil layer or copper foil layer.
6. the novel conductive structure that is flexible coupling according to claim 3, it is characterised in that the described transition part part in the middle part of body that is flexible coupling described in multiple described lamella correspondences stacks gradually and formed.
7. the novel conductive structure that is flexible coupling according to claim 1, it is characterised in that described in the conductive structure that is flexible coupling also include insulated sleeve, described insulated sleeve is sheathed on outside described transition part.
8. the novel conductive structure that is flexible coupling according to claim 7, it is characterised in that described transition part is arc, and described insulated sleeve is arc shrouds.
9. the novel conductive structure that is flexible coupling according to claim 1, it is characterised in that described first conductive connection part and be respectively arranged with fixing hole on described second conductive connection part, described conductive tie layers is provided with through hole in the position of corresponding described fixing hole.
10. the novel conductive structure that is flexible coupling according to claim 1, it is characterised in that the surface that the surface that described first conductive connection part is connected with described conductive tie layers, described second conductive connection part are connected with described conductive tie layers is shiny surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620119367.XU CN205388983U (en) | 2016-02-05 | 2016-02-05 | Novel flexible coupling conducting structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620119367.XU CN205388983U (en) | 2016-02-05 | 2016-02-05 | Novel flexible coupling conducting structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784568A (en) * | 2017-01-17 | 2017-05-31 | 华霆（合肥）动力技术有限公司 | A kind of new flexible connection structure and battery modules |
| CN106785215A (en) * | 2017-01-17 | 2017-05-31 | 华霆（合肥）动力技术有限公司 | A kind of battery modules and electrokinetic cell |
| CN108922993A (en) * | 2018-08-14 | 2018-11-30 | 江苏海基新能源股份有限公司 | The rectangular winding multi-pole lug lithium ion battery of one kind and its assembly method |
| CN109192912A (en) * | 2018-09-07 | 2019-01-11 | 华霆（合肥）动力技术有限公司 | Afflux component, afflux assembly manufacture method and battery modules |
| CN112548251A (en) * | 2020-12-07 | 2021-03-26 | 镇江百永电气设备有限公司 | High-heat-resistance high-conductivity flexible connection and preparation process thereof |
-
2016
- 2016-02-05 CN CN201620119367.XU patent/CN205388983U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784568A (en) * | 2017-01-17 | 2017-05-31 | 华霆（合肥）动力技术有限公司 | A kind of new flexible connection structure and battery modules |
| CN106785215A (en) * | 2017-01-17 | 2017-05-31 | 华霆（合肥）动力技术有限公司 | A kind of battery modules and electrokinetic cell |
| CN108922993A (en) * | 2018-08-14 | 2018-11-30 | 江苏海基新能源股份有限公司 | The rectangular winding multi-pole lug lithium ion battery of one kind and its assembly method |
| CN109192912A (en) * | 2018-09-07 | 2019-01-11 | 华霆（合肥）动力技术有限公司 | Afflux component, afflux assembly manufacture method and battery modules |
| CN112548251A (en) * | 2020-12-07 | 2021-03-26 | 镇江百永电气设备有限公司 | High-heat-resistance high-conductivity flexible connection and preparation process thereof |
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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. |
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