CN210806859U - AGV is with wireless charging device magnetic coupling coil shield assembly - Google Patents
AGV is with wireless charging device magnetic coupling coil shield assembly Download PDFInfo
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- CN210806859U CN210806859U CN201921824041.7U CN201921824041U CN210806859U CN 210806859 U CN210806859 U CN 210806859U CN 201921824041 U CN201921824041 U CN 201921824041U CN 210806859 U CN210806859 U CN 210806859U
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- coil
- receiving end
- magnetic
- wireless charging
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A magnetic coupling coil shielding device of a wireless charging device for an AGV comprises a receiving end coil and a transmitting end coil, wherein a coil air gap is formed between the bottom surface of the receiving end coil and the top surface of the transmitting end coil; a plurality of receiving end magnetic stripes are laid right above the top surface of the receiving end coil, gaps exist between all the receiving end magnetic stripes and the receiving end coil, a plurality of transmitting end magnetic stripes are laid right below the bottom surface of the transmitting end coil, and gaps exist between all the transmitting end magnetic stripes and the transmitting end coil; the area of the receiving end coil is smaller than that of the transmitting end coil. The design can not only reduce the volume and the weight of the receiver, but also increase the coupling coefficient and enhance the shielding effect.
Description
Technical Field
The utility model relates to a magnetic coupling structure belongs to wireless charging technical field, especially relates to a wireless charging device magnetic coupling coil shield assembly for AGV.
Background
An Automatic Guided Vehicle (AGV) is a mobile robot that has a guiding device and a microcomputer control system and can accurately travel along a guide path. The AGV adopts wireless charging mode, need not the cable and is connected vehicle and power supply system, has abandoned the charging contact, and charger and device of power consumption all have electrically conductive contact to expose. The wireless charging mode enables the charging end to be electrically isolated from the AGV energy storage system, so that the defects caused by a direct-insertion type charging method are fundamentally eliminated, and the wireless charging method is safer and wider in applicability.
The wireless charging system for the AGV generally comprises two parts, namely a power receiver and a power transmitter, wherein the transmitter is arranged on the ground, and the receiver is arranged on a trolley. In practical application, how to reduce the volume and weight of the receiver, how to make electromagnetic shielding of a high-frequency energy transmission magnetic field and the like are inevitable problems in design.
Meanwhile, the magnetic field coupling between the coils is utilized for wireless charging to transfer energy, stray magnetic fields can be generated in the surrounding space, the stray magnetic fields can interfere with instruments on the AGV trolley, and in addition, the stray magnetic fields can influence human health if being in magnetic radiation for a long time, so that the magnetic coupling structure design of a wireless charging system is very important including a coil structure and a shielding structure.
The information disclosed in this background section is only for enhancement of understanding of the general background of the patent application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The utility model aims at overcoming the great defect and the problem of volume, the weight of the receiver that exists among the prior art, providing a wireless charging device magnetic coupling coil shield assembly for AGV of the volume of receiver, weight are less.
In order to achieve the above purpose, the technical solution of the utility model is that: a magnetic coupling coil shielding device of a wireless charging device for an AGV comprises a receiving end coil and a transmitting end coil, wherein a coil air gap is formed between the bottom surface of the receiving end coil and the top surface of the transmitting end coil;
a plurality of receiving end magnetic stripes are laid right above the top surface of the receiving end coil, gaps exist between all the receiving end magnetic stripes and the receiving end coil, a plurality of transmitting end magnetic stripes are laid right below the bottom surface of the transmitting end coil, and gaps exist between all the transmitting end magnetic stripes and the transmitting end coil;
the area of the receiving end coil is smaller than that of the transmitting end coil.
The receiving end coil and the transmitting end coil are both formed by winding a plurality of strands of litz wires.
The arrangement structures of the receiving end magnetic stripe and the transmitting end magnetic stripe are radiation structures.
The number of the receiving end magnetic strips and the number of the transmitting end magnetic strips are twenty-four.
And the receiving end magnetic strip and the transmitting end magnetic strip are made of ferrite.
An emitting end shielding layer is arranged under the emitting end magnetic stripe and is of a round cake-shaped structure, and the emitting end shielding layer is made of an aluminum plate.
The receiving end coil and the receiving end magnetic stripe are covered with a hollow receiving end shielding layer, and the receiving end shielding layer is made of an aluminum plate.
The receiving end shielding layer is of a hollow cylindrical structure, and a receiving end coil and all receiving end magnetic stripes are arranged in a cylindrical cavity in the receiving end shielding layer.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model relates to an among the wireless charging device magnetic coupling coil shield assembly for AGV, the transmitter includes transmitting terminal coil and transmitting terminal magnetic stripe, and the receiver includes receiving terminal coil and receiving terminal magnetic stripe, and the area of receiving terminal coil is less than the area of transmitting terminal coil, compares with prior art, and this kind of asymmetric structure's magnetic coupling coil design can be obvious, the effectual volume and the weight that reduces the receiver. Therefore, the volume and the weight of the receiver are smaller.
2. The utility model relates to an among the wireless charging device magnetic coupling coil shield assembly for AGV, the arrangement structure of receiving terminal magnetic stripe, transmitting terminal magnetic stripe is radiation structure, compares with the structure of paving that adopts among the prior art, can reduce the weight and the cost of magnetic coupling structure, on this basis, optimizes the selection to the quantity of magnetic stripe again, if twenty four to ensure the result of use, especially when there is the clearance between magnet and the coil, can play the effect of shielding magnetic field and increase coupling effect. Therefore, the utility model discloses not only the result of application is better, and weight is lighter moreover, and the cost is lower.
3. The utility model relates to a wireless charging device magnetic coupling coil shield assembly for AGV, be provided with the transmitting terminal shielding layer under the transmitting terminal magnetic stripe, the receiving terminal coil, the outside cage of receiving terminal magnetic stripe is covered with the receiving terminal shielding layer of fretwork, the transmitting terminal shielding layer, the manufacturing raw materials of receiving terminal shielding layer all are aluminum plate, this design not only can further reduce the leakage inductance, reduce electromagnetic radiation, and can increase the coupling coefficient, especially when the receiving terminal shielding layer is the cylinder structure of fretwork, the effect is better, can possess better effect to the shielding in high frequency magnetic field, thereby reduce the electromagnetic interference to AGV vehicle control circuit and to human electromagnetic radiation. Therefore, the utility model discloses not only can increase the coupling coefficient, shielding effect is stronger moreover.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the receiving end coil and the transmitting end coil in fig. 1.
Fig. 3 is a schematic structural diagram of the receiving-end shielding layer in fig. 1.
In the figure: the receiving end magnetic stripe comprises a receiving end magnetic stripe 1, a receiving end coil 2, a transmitting end coil 3, a transmitting end magnetic stripe 4, a transmitting end shielding layer 5, a receiving end shielding layer 6, a cylindrical cavity 61 and a coil air gap 7.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 3, a magnetic coupling coil shielding device of a wireless charging device for an AGV includes a receiving end coil 2 and a transmitting end coil 3, wherein a coil air gap 7 exists between the bottom surface of the receiving end coil 2 and the top surface of the transmitting end coil 3;
a plurality of receiving end magnetic stripes 1 are laid right above the top surface of the receiving end coil 2, gaps exist between all the receiving end magnetic stripes 1 and the receiving end coil 2, a plurality of transmitting end magnetic stripes 4 are laid right below the bottom surface of the transmitting end coil 3, and gaps exist between all the transmitting end magnetic stripes 4 and the transmitting end coil 3;
the area of the receiving end coil 2 is smaller than that of the transmitting end coil 3.
The receiving end coil 2 and the transmitting end coil 3 are both formed by winding a plurality of strands of litz wires.
The arrangement structures of the receiving end magnetic stripe 1 and the transmitting end magnetic stripe 4 are radiation structures.
The number of the receiving end magnetic strips 1 and the number of the transmitting end magnetic strips 4 are twenty-four.
The receiving end magnetic stripe 1 and the transmitting end magnetic stripe 4 are made of ferrite.
An emitting end shielding layer 5 is arranged under the emitting end magnetic stripe 4, the emitting end shielding layer 5 is of a round cake-shaped structure, and the emitting end shielding layer 5 is made of an aluminum plate.
The receiving end coil 2 and the receiving end magnetic stripe 1 are covered by hollow receiving end shielding layers 6, and the receiving end shielding layers 6 are made of aluminum plates.
The receiving end shielding layer 6 is of a hollow cylindrical structure, and a receiving end coil 2 and all receiving end magnetic strips 1 are arranged in a cylindrical cavity 61 in the receiving end shielding layer 6.
When the design is applied, the number of the magnetic stripes 1 at the receiving end and the number of the magnetic stripes 4 at the transmitting end can be changed, and Maxwell simulation software is utilized to obtain the relation between the number of the magnetic stripes and the coupling coefficients of the magnetic field intensity and the electromagnetic induction, so that the number of the magnetic stripes 4 at the transmitting end and the optimal receiving end is determined, namely twenty-four optimal receiving end magnetic stripes are obtained.
After the number of the receiving end magnetic stripes 1 and the number of the transmitting end magnetic stripes 4 are determined, the magnetic field intensity and the coupling coefficient can be adjusted by changing the thickness of the aluminum plates used by the transmitting end shielding layer 5 and the receiving end shielding layer 6, so that a better shielding effect is obtained, and a proper coupling coefficient can also be obtained.
Example 1:
referring to fig. 1 to 3, a magnetic coupling coil shielding device of a wireless charging device for an AGV includes a receiving end coil 2 and a transmitting end coil 3, wherein a coil air gap 7 exists between the bottom surface of the receiving end coil 2 and the top surface of the transmitting end coil 3; a plurality of receiving end magnetic stripes 1 are laid right above the top surface of the receiving end coil 2, gaps exist between all the receiving end magnetic stripes 1 and the receiving end coil 2, a plurality of transmitting end magnetic stripes 4 are laid right below the bottom surface of the transmitting end coil 3, and gaps exist between all the transmitting end magnetic stripes 4 and the transmitting end coil 3; the area of the receiving end coil 2 is smaller than that of the transmitting end coil 3.
Example 2:
the basic contents are the same as example 1, except that:
the receiving end coil 2 and the receiving end magnetic stripe 1 are covered by hollow receiving end shielding layers 6, and the receiving end shielding layers 6 are made of aluminum plates. The receiving end shielding layer 6 is of a hollow cylindrical structure, and a receiving end coil 2 and all receiving end magnetic strips 1 are arranged in a cylindrical cavity 61 in the receiving end shielding layer 6.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment, but all equivalent modifications or changes made by those skilled in the art according to the present invention should be included in the protection scope of the claims.
Claims (8)
1. The utility model provides a wireless charging device magnetic coupling coil shield assembly for AGV, includes receiving terminal coil (2) and transmitting terminal coil (3), there is coil air gap (7), its characterized in that between the bottom surface of receiving terminal coil (2) and the top surface of transmitting terminal coil (3):
a plurality of receiving end magnetic stripes (1) are laid right above the top surface of the receiving end coil (2), gaps exist between all the receiving end magnetic stripes (1) and the receiving end coil (2), a plurality of transmitting end magnetic stripes (4) are laid right below the bottom surface of the transmitting end coil (3), and gaps exist between all the transmitting end magnetic stripes (4) and the transmitting end coil (3);
the area of the receiving end coil (2) is smaller than that of the transmitting end coil (3).
2. The magnetic coupling coil shielding device of the wireless charging device for AGV according to claim 1, wherein: the receiving end coil (2) and the transmitting end coil (3) are wound by a plurality of strands of litz wires.
3. The magnetic coupling coil shielding device of the wireless charging device for AGV according to claim 1 or 2, wherein: the arrangement structures of the receiving end magnetic stripe (1) and the transmitting end magnetic stripe (4) are radiation structures.
4. The magnetic coupling coil shielding device of the wireless charging device for AGV according to claim 1 or 2, wherein: the number of the receiving end magnetic strips (1) and the number of the transmitting end magnetic strips (4) are twenty-four.
5. The magnetic coupling coil shielding device of the wireless charging device for AGV according to claim 1 or 2, wherein: the receiving end magnetic stripe (1) and the transmitting end magnetic stripe (4) are made of ferrite.
6. The magnetic coupling coil shielding device of the wireless charging device for AGV according to claim 1 or 2, wherein: an emitting end shielding layer (5) is arranged under the emitting end magnetic stripe (4), the emitting end shielding layer (5) is of a round cake-shaped structure, and the emitting end shielding layer (5) is made of an aluminum plate.
7. The magnetic coupling coil shielding device of the wireless charging device for AGV according to claim 1 or 2, wherein: the receiving end coil (2) and the receiving end magnetic stripe (1) are covered with a hollow receiving end shielding layer (6), and the receiving end shielding layer (6) is made of an aluminum plate.
8. The magnetic coupling coil shielding device of the wireless charging device for AGV according to claim 7, wherein: the receiving end shielding layer (6) is of a hollow cylindrical structure, and a receiving end coil (2) and all receiving end magnetic strips (1) are arranged in a cylindrical cavity (61) in the receiving end shielding layer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921824041.7U CN210806859U (en) | 2019-10-28 | 2019-10-28 | AGV is with wireless charging device magnetic coupling coil shield assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921824041.7U CN210806859U (en) | 2019-10-28 | 2019-10-28 | AGV is with wireless charging device magnetic coupling coil shield assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210806859U true CN210806859U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921824041.7U Expired - Fee Related CN210806859U (en) | 2019-10-28 | 2019-10-28 | AGV is with wireless charging device magnetic coupling coil shield assembly |
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| CN (1) | CN210806859U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113276699A (en) * | 2021-05-26 | 2021-08-20 | 南瑞集团有限公司 | A buried magnetic coupling mechanism for electric automobile is wireless to be charged |
| CN113555974A (en) * | 2021-07-29 | 2021-10-26 | 西南交通大学 | Hybrid shielding structure for inhibiting leakage magnetic field of wireless power supply system and optimization method thereof |
| CN115352290A (en) * | 2022-08-12 | 2022-11-18 | 哈尔滨工业大学 | Pendulum type anti-offset magnetic coupling system for wireless power transmission of autonomous unmanned underwater vehicle |
| CN118054580A (en) * | 2024-04-10 | 2024-05-17 | 清华大学深圳国际研究生院 | Wireless energy-transfer coil reinforced shielding structure and wireless charging system |
-
2019
- 2019-10-28 CN CN201921824041.7U patent/CN210806859U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113276699A (en) * | 2021-05-26 | 2021-08-20 | 南瑞集团有限公司 | A buried magnetic coupling mechanism for electric automobile is wireless to be charged |
| CN113555974A (en) * | 2021-07-29 | 2021-10-26 | 西南交通大学 | Hybrid shielding structure for inhibiting leakage magnetic field of wireless power supply system and optimization method thereof |
| CN113555974B (en) * | 2021-07-29 | 2023-10-10 | 西南交通大学 | Mixed shielding structure for inhibiting leakage magnetic field of wireless power supply system and optimization method thereof |
| CN115352290A (en) * | 2022-08-12 | 2022-11-18 | 哈尔滨工业大学 | Pendulum type anti-offset magnetic coupling system for wireless power transmission of autonomous unmanned underwater vehicle |
| CN118054580A (en) * | 2024-04-10 | 2024-05-17 | 清华大学深圳国际研究生院 | Wireless energy-transfer coil reinforced shielding structure and wireless charging system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200619 Termination date: 20201028 |
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| CF01 | Termination of patent right due to non-payment of annual fee |