CN205751835U - Wireless charging loosely coupled transformer and automobile wireless charging device - Google Patents
Wireless charging loosely coupled transformer and automobile wireless charging device Download PDFInfo
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- CN205751835U CN205751835U CN201620413991.0U CN201620413991U CN205751835U CN 205751835 U CN205751835 U CN 205751835U CN 201620413991 U CN201620413991 U CN 201620413991U CN 205751835 U CN205751835 U CN 205751835U
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- magnetic core
- wireless charging
- former limit
- coil
- loosely coupled
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Abstract
The utility model discloses a kind of wireless charging loosely coupled transformer and automobile wireless charging device, wherein wireless charging loosely coupled transformer includes that transmitter module and receiver module, transmitter module and receiver module intercouple；Wherein transmitter module includes the first former limit magnetic core and primary coil, and primary coil is set around the first former limit magnetic core；Receiver module part includes the first secondary magnetic core and secondary coil, and secondary coil is set around the first secondary magnetic core；Primary coil and/or secondary coil use flat wire coiling.Technical solutions of the utility model reduce the loss of wireless charging loosely coupled transformer, improve the efficiency of wireless charging loosely coupled transformer.
Description
Technical field
This utility model relates to transformer technology field, particularly to a kind of wireless charging loosely coupled transformer
And automobile wireless charging device.
Background technology
Charging electric vehicle mainly uses wired charging and wireless charging two ways at present.Wired fill
Although electricity efficiency is higher, but charging process is dumb, needs repeatedly to plug charging cable, there is slip
Wear and tear, wire is aging and contacts the potential safety hazards such as electric spark.Additionally in place installation, charging station
Building similar with conventional gasoline station, restricted by building place, construction cost is the biggest.
Wireless charging can overcome disadvantages mentioned above, uses a former secondary to be kept completely separate, without electrical connection
Loosely coupled transformer, utilizes the mutual magnetic field coupling of former secondary to realize electric energy and passes through air between former secondary
It is transmitted.Obviously, the direct electrical connection of electric automobile and charge power supply is removed, it is achieved the nothing of electric energy
Line transmits, then can make electric automobile frequent charge during advancing, and reduce the people in charging process
Work operation link.
The coil of the most conventional loosely coupled transformer generally uses sub-thread or the side of strand copper wire coiling
Formula realizes.But the coil that single strand of copper wire is made exists the shortcoming that eddy-current loss is high, strand copper wire is made
The copper cash utilization rate that coil then exists unit are is low, and electric current density is high, is therefore lost the highest.
Utility model content
Main purpose of the present utility model is to provide a kind of wireless charging loosely coupled transformer, it is intended to reduce nothing
The loss of line charging loosely coupled transformer, improves the efficiency of wireless charging loosely coupled transformer.
For achieving the above object, the utility model proposes a kind of wireless charging loosely coupled transformer, described
Wireless charging loosely coupled transformer includes transmitter module and receiver module, described transmitter module and receiver module
Intercouple；Wherein transmitter module includes the first former limit magnetic core and primary coil, described primary coil around
It is located at described first former limit magnetic core；Described receiver module part includes the first secondary magnetic core and secondary coil,
Described secondary coil is set around the first secondary magnetic core；Described primary coil and/or described secondary coil use flat
Horizontal line coiling.
Preferably, described wireless charging loosely coupled transformer includes at least two first former limit magnetic core, corresponding
At least provided with two primary coils, described first former limit magnetic core is arranged side by side；Described wireless charging pine
Coupling transformer includes at least two the first secondary magnetic core, corresponding at least provided with two secondary coils,
Described first secondary magnetic core is arranged side by side.
Preferably, described transmitter module also includes the second former limit magnetic core, and described receiver module also includes second
Secondary magnetic core；Described second former limit magnetic core be arranged at described first former limit magnetic core away from described receiver module
Side, described second secondary coil be arranged at described first secondary magnetic core away from described transmitter module
Side.
Preferably, described first former limit magnetic core and the first secondary magnetic core are spliced by multiple magnetic core unit.
Preferably, described wireless charging loosely coupled transformer also includes former limit cover plate and secondary cover plate；Described
Former limit cover plate is arranged at the side away from described first former limit magnetic core of described second former limit magnetic core；Described pair
Limit cover plate is arranged at the side away from described first secondary magnetic core of described second secondary magnetic core.
Preferably, described former limit cover plate and described secondary cover plate are aluminum cover plate.
Preferably, also to include that former limit shielded coil, described former limit shielded coil are located in described for transmitter module
Between former limit cover plate and described second former limit magnetic core；Described receiver module also includes secondary shielded coil, institute
State secondary shielded coil to be located between described secondary cover plate and described second secondary magnetic core.
Preferably, described primary coil use strand copper wire coiling and described secondary coil use flat wire around
System.
Preferably, described first former limit magnetic core and described first secondary magnetic core are Ferrite Material.
This utility model also proposes a kind of automobile wireless charging device, and described automobile wireless charging device includes
Installation's power source, radiating circuit, reception circuit, battery and wireless charging loose coupling transformation as above
Device；Wherein, described radiating circuit passes through wireless charging after being changed by the electric energy that described installation's power source exports
Electricity loosely coupled transformer transmission is to described reception circuit, and the electric energy of input is converted into electricity by described reception circuit
Electric energy needed for pond, is charged battery；Described wireless charging loosely coupled transformer include transmitter module and
Receiver module, described transmitter module and receiver module intercouple；Wherein transmitter module includes the first former limit
Magnetic core and primary coil, described primary coil is set around described first former limit magnetic core；Described receiver module
Part includes the first secondary magnetic core and secondary coil, and described secondary coil is set around the first secondary magnetic core；
Described primary coil or described secondary coil use flat wire coiling.
Technical solutions of the utility model are by arranging the first primary coil, the first former limit magnetic core, the first secondary
Coil and the first secondary magnetic core, define a kind of wireless charging loosely coupled transformer.Described primary coil around
Being located at described first former limit magnetic core, described secondary coil is set around the first secondary magnetic core.Wherein, described former
Sideline circle or described secondary coil use flat wire coiling, instead of traditional single strand of copper wire or multiply copper
The coil that line turns to, reduces coil loss, thus improves the biography of wireless charging loosely coupled transformer
Defeated efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that,
Accompanying drawing in describing below is only embodiments more of the present utility model, for ordinary skill people
From the point of view of Yuan, on the premise of not paying creative work, it is also possible to obtain according to the structure shown in these accompanying drawings
Obtain other accompanying drawing.
Fig. 1 is the structural representation of this utility model wireless charging loosely coupled transformer one embodiment；
Fig. 2 is the structural representation of this utility model flat wire one embodiment；
Fig. 3 is the structural representation of this utility model automobile wireless charging device one embodiment.
Drawing reference numeral illustrates:
| Label | Title | Label | Title |
| 100 | Transmitter module | 230 | Second secondary magnetic core |
| 200 | Receiver module | 240 | Secondary shielded coil |
| 110 | First former limit magnetic core | 250 | Secondary cover plate |
| 120 | Primary coil | 10 | Installation's power source |
| 130 | Second former limit magnetic core | 20 | Radiating circuit |
| 140 | Former limit shielded coil | 30 | Wireless charging loosely coupled transformer |
| 150 | Former limit cover plate | 40 | Receive circuit |
| 210 | First secondary magnetic core | 50 | Battery |
| 220 | Secondary coil |
The realization of this utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings into
One step explanation.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment
Scheme is clearly and completely described, it is clear that described embodiment is only of the present utility model one
Section Example rather than whole embodiments.Based on the embodiment in this utility model, this area is general
The every other embodiment that logical technical staff is obtained under not making creative work premise, broadly falls into
The scope of this utility model protection.
It is to be appreciated that directional instruction in this utility model embodiment (such as upper and lower, left and right,
It is forward and backward ...) it is only used for explanation phase under a certain particular pose (as shown in drawings) between each parts
To position relationship, motion conditions etc., if this particular pose changes, then directionality indicates also
Change the most therewith.
It addition, the description relating to " first ", " second " etc. in this utility model is only used for describing purpose,
And it is not intended that indicate or imply its relative importance or the implicit number indicating indicated technical characteristic
Amount.Thus, define " first ", the feature of " second " can be expressed or implicitly include at least one
Individual this feature.It addition, the technical scheme between each embodiment can be combined with each other, but must be with
Based on those of ordinary skill in the art are capable of, when conflicting or nothing occurs in the combination of technical scheme
Will be understood that when method realizes that the combination of this technical scheme does not exists, the guarantor not required at this utility model
Within the scope of protecting.
The utility model proposes a kind of wireless charging loosely coupled transformer, be applied to electric automobile wireless charging
Device.
With reference to Fig. 1, in this utility model embodiment, this wireless charging loosely coupled transformer includes launching mould
Block 100 and receiver module 200, described transmitter module 100 and receiver module 200 intercouple；Wherein launch
Module 100 includes the first former limit magnetic core 110 and primary coil 120, and described primary coil 120 is set around institute
State the first former limit magnetic core 110；Described receiver module 200 part includes the first secondary magnetic core 210 and secondary line
Circle 220, described secondary coil 220 is set around the first secondary magnetic core 210；Described primary coil 120 and/or institute
State secondary coil 220 and use flat wire coiling.
In the present embodiment, first former limit magnetic core the 110, first secondary magnetic core 210 all becomes tabular.Former sideline
Circle 120 is along the side winding rectangularity of the first former limit magnetic core 110, and secondary coil 220 is along the first secondary
The side winding rectangularity of coil 220.
In primary coil 120 and secondary coil 220, at least coil is to use flat wire coiling on one side.Flat
The outer sheath of horizontal line is provided with insulating barrier.
With reference to Fig. 2, in the present embodiment, flat wire uses metallic copper material, and flat wire is banding.Flat wire
Length △ y much larger than the height △ z of flat wire, and the height △ z of flat wire is much larger than the width of flat wire
△x。
When carrying out coiling, primary coil 120 or secondary coil 220 can use single flat wire to carry out multilamellar
Winding.After can also using multiple flat wire parallel connection further, carry out winding, to reduce leakage field simultaneously
Loss.
Technical solutions of the utility model by arrange first primary coil the 120, first former limit magnetic core 110,
One secondary coil 220 and the first secondary magnetic core 210, defines a kind of wireless charging loosely coupled transformer.Institute
Stating primary coil 120 and be set around described first former limit magnetic core 110, it is secondary that described secondary coil 220 is set around first
Limit magnetic core 210.Wherein, described primary coil 120 or described secondary coil 220 use flat wire coiling,
Instead of traditional single strand of copper wire or coil that multiply copper core turns to, reduce coil loss, thus carry
The high efficiency of transmission of wireless charging loosely coupled transformer.
Further, described wireless charging loosely coupled transformer includes at least two first former limit magnetic core 110,
Corresponding at least provided with two primary coils 120, two described first former limit magnetic cores 110 are arranged side by side；
Described wireless charging loosely coupled transformer includes at least two the first secondary magnetic core 210, corresponding at least provided with
Two secondary coils 220, described first secondary magnetic core 210 are had to be arranged side by side.
It should be noted that the rigidity of flat wire is relatively strong, for simplifying technique during winding coil, corresponding
Multiple first former limit magnetic core 110 can be set, to substitute single bigger magnetic core.It is similar to, receiver module
200 are provided with multiple first secondary magnetic core 210, the quantity of the first secondary magnetic core 210 and the first former limit magnetic core
The quantity of 110 can identical also can be different, be concrete condition and arrange flexibly.
Further, described transmitter module 100 also includes the second former limit magnetic core 130, described receiver module
200 also include the second secondary magnetic core 230；Described second former limit magnetic core 130 is arranged at described first former limit magnetic
The side away from described receiver module 200 of core 110, described second secondary coil 220 is arranged at described
The side away from described transmitter module 100 of the first secondary magnetic core 210.
Second former limit magnetic core 130 and the second secondary magnetic core 230 use non-crystalline material to make, and make the most whole
Block magnetic core, by being arranged at the side of the first former limit magnetic core 110, energy by the second former limit magnetic core 130 laminating
Enough reduce the leakage field between the second magnetic core 130 gap, former limit.In like manner, by by the second secondary magnetic core 230
Laminating is arranged at the side of the first secondary magnetic core 210, it is possible to reduce between the second secondary magnetic core 230 gap
Leakage field.
In the present embodiment, described first former limit magnetic core 110 and described first secondary magnetic core 210 are ferrite
Material.
Specifically, described first former limit magnetic core 110 and the first secondary magnetic core 210 are spelled by multiple magnetic core unit
Connect and form.
But due to material behavior, Ferrite Material can only make fritter square core, can pass through fritter
Core shapes required for square core unit spliced one-tenth.
Further, described wireless charging loosely coupled transformer also includes former limit cover plate 150 and secondary cover plate
250；Described former limit cover plate 150 be arranged at described second former limit magnetic core 130 away from described first former limit magnetic
The side of core 110；Described secondary cover plate 250 be arranged at described second secondary magnetic core 230 away from described
The side of the first secondary magnetic core 210.
In the present embodiment, described former limit cover plate 150 and described secondary cover plate 250 are aluminum cover plate.Logical
Crossing and arrange cover plate, shield leakage field produced by magnetic field, the material of cover plate can also use other high conductance
Rate, the material of low magnetic permeability are constituted, such as copper, silver etc..
Further, transmitter module 100 also includes former limit shielded coil 140, described former limit shielded coil
140 are located between described former limit cover plate 150 and described second former limit magnetic core 130；Described receiver module
200 also include that secondary shielded coil 240, described secondary shielded coil 240 are located in described secondary cover plate 250
And between described second secondary magnetic core 230.
It should be noted that by arranging former limit shielded coil 140 and secondary shielded coil 240, further
Magnetic leakage shielding produced by magnetic field is fallen.In the present embodiment, former limit cover plate 150 and the second former limit magnetic core
Being provided with two former limit shielded coils 140 between 130, two former limit shielded coils 140 are near wireless charging pine
The outside of coupling transformer is also symmetrical set, and two former limit shielded coils 140 are by a wire coiling
Become.It can be readily appreciated that be provided with two secondary shieldings between secondary cover plate 250 and the second secondary limit magnetic core
Coil 240, being symmetrical set with former limit shielded coil 140 of secondary shielded coil 240, two secondary screens
Cover coil 240 also to be formed by a wire coiling.
Specifically, described primary coil 120 uses strand copper wire coiling and described secondary coil 220 to use
Flat wire coiling.
This utility model primary coil 120 and secondary coil 220 can all use flat wire coiling,
Primary coil 120 and secondary coil 220 can also use different coil windings.Such as primary coil 120
Using strand copper wire coiling, secondary coil 220 uses flat wire coiling；It can also be former limit
Coil 120 uses flat wire coiling, secondary coil 220 to use multi cord coiling.This enforcement
In example, using primary coil 120 is the side that multi cord coiling, secondary coil 220 use flat wire coiling
Formula.
First former limit magnetic core the 110, second former limit in technical solutions of the utility model, in transmitter module 100
Magnetic core 130, former limit shielded coil 140 and former limit cover plate 150 stack gradually setting；Receiver module 200
In first secondary magnetic core the 210, second secondary magnetic core 230, secondary shielded coil 240 and secondary cover plate
250 stack gradually setting；Use the thread primary coil of multiply 120 along the first former limit magnetic core 110 side
Carry out winding, and use flat thread secondary coil 220 along the first secondary magnetic core 210 winding, be somebody's turn to do
Wireless charging loosely coupled transformer has the advantage that conversion efficiency is higher.
With reference to Fig. 3, this utility model also proposes a kind of automobile wireless charging device, and described automobile wireless charges
Device includes installation's power source 10, radiating circuit 20, receives circuit 40, battery 50 and as above
Wireless charging loosely coupled transformer 30；Wherein, described installation's power source 10 is exported by described radiating circuit 20
Electric energy is transmitted to described reception circuit 40 by wireless charging loosely coupled transformer 30 after changing, described
Receive circuit 40 and the electric energy of input is converted into electric energy needed for battery 50, battery 50 is charged.
Wherein, the transmitter module (figure of installation's power source 10, radiating circuit 20 and wireless charging loosely coupled transformer
Do not indicate in 3) it is arranged under earth's surface, the receiver module of wireless charging loosely coupled transformer (is not marked in Fig. 3
Show), receive circuit 40 and battery 50 and be arranged on an electrical automobile.When electric automobile needs to be charged,
By electric automobile during traveling to specifying position so that transmitter module and receiver module intercouple, just can carry out
Charging.
The foregoing is only preferred embodiment of the present utility model, not thereby limit of the present utility model specially
Profit scope, every under inventive concept of the present utility model, in utilizing this utility model description and accompanying drawing
The equivalent structure transformation of Rong Suozuo, or directly/be indirectly used in other relevant technical fields and be included in this
In the scope of patent protection of utility model.
Claims (10)
1. a wireless charging loosely coupled transformer, it is characterised in that described wireless charging loose coupling transformation
Device includes that transmitter module and receiver module, described transmitter module and receiver module intercouple；Wherein launch
Module includes the first former limit magnetic core and primary coil, and described primary coil is set around described first former limit magnetic
Core；Described receiver module includes the first secondary magnetic core and secondary coil, and described secondary coil is set around
One secondary magnetic core；Described primary coil and/or described secondary coil use flat wire coiling.
2. wireless charging loosely coupled transformer as claimed in claim 1, it is characterised in that described wireless
Charging loosely coupled transformer includes at least two first former limit magnetic core, corresponding at least provided with two former limits
Coil, described first former limit magnetic core is arranged side by side；Described wireless charging loosely coupled transformer includes at least two
Individual first secondary magnetic core, corresponding at least provided with two secondary coils, described first secondary magnetic core is side by side
Arrange.
3. wireless charging loosely coupled transformer as claimed in claim 2, it is characterised in that described transmitting
Module also includes the second former limit magnetic core, and described receiver module also includes the second secondary magnetic core；Described second former
Limit magnetic core is arranged at the side away from described receiver module of described first former limit magnetic core, described second secondary
Coil is arranged at the side away from described transmitter module of described first secondary magnetic core.
4. the wireless charging loosely coupled transformer as described in claim 1-3 any one, it is characterised in that
Described first former limit magnetic core and the first secondary magnetic core are spliced by multiple magnetic core unit.
5. wireless charging loosely coupled transformer as claimed in claim 4, it is characterised in that described wireless
Charging loosely coupled transformer also includes former limit cover plate and secondary cover plate；Described former limit cover plate is arranged at described
The side away from described first former limit magnetic core of two former limit magnetic cores；Described secondary cover plate is arranged at described second
The side away from described first secondary magnetic core of secondary magnetic core.
6. wireless charging loosely coupled transformer as claimed in claim 5, it is characterised in that described former limit
Cover plate and described secondary cover plate are aluminum cover plate.
7. wireless charging loosely coupled transformer as claimed in claim 6, it is characterised in that transmitter module
Also include that former limit shielded coil, described former limit shielded coil are located in described former limit cover plate second former with described
Between the magnetic core of limit；Described receiver module also includes that secondary shielded coil, described secondary shielded coil are located in
Between described secondary cover plate and described second secondary magnetic core.
8. wireless charging loosely coupled transformer as claimed in claim 7, it is characterised in that described former limit
Coil uses strand copper wire coiling and described secondary coil to use flat wire coiling.
9. wireless charging loosely coupled transformer as claimed in claim 8, it is characterised in that described first
Former limit magnetic core and described first secondary magnetic core are Ferrite Material.
10. an automobile wireless charging device, it is characterised in that described automobile wireless charging device includes
Installation's power source, radiating circuit, reception circuit, battery and as described in claim 1-9 any one
Wireless charging loosely coupled transformer；Wherein,
Described radiating circuit passes through wireless charging pine coupling after being changed by the electric energy that described installation's power source exports
Close transformator transmission extremely described reception circuit, needed for the electric energy of input is converted into battery by described reception circuit
Electric energy, is charged battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620413991.0U CN205751835U (en) | 2016-05-09 | 2016-05-09 | Wireless charging loosely coupled transformer and automobile wireless charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620413991.0U CN205751835U (en) | 2016-05-09 | 2016-05-09 | Wireless charging loosely coupled transformer and automobile wireless charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205751835U true CN205751835U (en) | 2016-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620413991.0U Active CN205751835U (en) | 2016-05-09 | 2016-05-09 | Wireless charging loosely coupled transformer and automobile wireless charging device |
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| CN (1) | CN205751835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106560905A (en) * | 2016-05-09 | 2017-04-12 | 中兴新能源汽车有限责任公司 | Wireless charging loose coupling transformer and vehicle wireless charging device |
-
2016
- 2016-05-09 CN CN201620413991.0U patent/CN205751835U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106560905A (en) * | 2016-05-09 | 2017-04-12 | 中兴新能源汽车有限责任公司 | Wireless charging loose coupling transformer and vehicle wireless charging device |
| CN106560905B (en) * | 2016-05-09 | 2019-07-19 | 中兴新能源汽车有限责任公司 | Wireless charging loosely coupled transformer and automobile wireless charging unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190717 Address after: 441000 Building No. 6, International Innovation Industry Base, 49 Dengcheng Avenue, Xiangyang High-tech Zone, Hubei Province Patentee after: ZTEV Corp. Address before: 441000, No. six, international innovation industrial base, 49 Deng Cheng Avenue, hi tech Zone, Xiangfan, Hubei, Xiangyang Co-patentee before: SHENZHEN CITY ZHONGXING NEW ENERGY AUTOMOBILE TECHNOLOGY CO.,LTD. Patentee before: ZTEV Corp. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200602 Address after: 518000 floor 2, building B8, ZTE Industrial Park, No. 2, Xili Chuangyan Road, Xili community, Nanshan District, Shaoguan City, Guangdong Province Co-patentee after: Shenzhen Zhongxin New Energy Technology Co.,Ltd. Patentee after: ZTEV Corp. Address before: 441000 Building No. 6, International Innovation Industry Base, 49 Dengcheng Avenue, Xiangyang High-tech Zone, Hubei Province Patentee before: ZTEV Corp. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: NO.901, No.2 factory building, Honghui Industrial Zone, No.2 liuxiansan Road, 68 Xingdong community, Xin'an street, Bao'an District, Shenzhen, Guangdong 518000 Patentee after: Zhongxing new energy technology Co.,Ltd. Patentee after: Shenzhen Zhongxin New Energy Technology Co.,Ltd. Address before: 518000 2nd floor, building B8, ZTE Industrial Park, 2 Xili Chuangyan Road, Xili community, Xili street, Nanshan District, Shaoguan City, Guangdong Province Patentee before: ZTEV Corp. Patentee before: Shenzhen Zhongxin New Energy Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210409 Address after: NO.901, No.2 factory building, Honghui Industrial Zone, No.2 liuxiansan Road, 68 Xingdong community, Xin'an street, Bao'an District, Shenzhen, Guangdong 518000 Patentee after: Zhongxing new energy technology Co.,Ltd. Address before: NO.901, No.2 factory building, Honghui Industrial Zone, No.2 liuxiansan Road, 68 Xingdong community, Xin'an street, Bao'an District, Shenzhen, Guangdong 518000 Patentee before: Zhongxing new energy technology Co.,Ltd. Patentee before: Shenzhen Zhongxin New Energy Technology Co.,Ltd. |