CN214227956U - Wireless charging structure and system - Google Patents
Wireless charging structure and system Download PDFInfo
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- CN214227956U CN214227956U CN202022672797.3U CN202022672797U CN214227956U CN 214227956 U CN214227956 U CN 214227956U CN 202022672797 U CN202022672797 U CN 202022672797U CN 214227956 U CN214227956 U CN 214227956U
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Abstract
The utility model provides a wireless charging structure and system, wherein, wireless charging structure includes: a shield plate, a magnetic core, and a winding; the magnetic core set up in on the one side of shield plate, the magnetic core includes: the magnetic core body and be formed in protruding structure on the magnetic core body, protruding structure with the magnetic core body encloses into an installation space, the winding accept in the installation space to be fixed in on the magnetic core body of installation space bottom, protruding structure distribute in continuously or discontinuously around the winding. The utility model discloses wireless charging structure is through carrying out optimal design to the magnetic core structure, designs the form for can wrapping up the winding with the magnetic core to improve wireless charging structure's coupling coefficient, solved the problem that the loss that magnetic field arouses among the current wireless charging structure is big on the large side.
Description
Technical Field
The utility model relates to an electric automobile wireless charging technology field especially relates to a wireless charging structure and system.
Background
With the development of scientific technology and the current situation of coping with environmental problems, new energy automobiles have been rapidly developed in recent years. An electric automobile in the new energy automobile adopts a high-energy-density battery pack as a power source and realizes electric energy conversion by utilizing clean energy. At present, a battery pack of an electric vehicle mainly depends on a charging pile and is charged in a wired mode, but the convenience and the universality of the wired charging mode are limited to a certain extent. Therefore, the existing electric vehicle can be charged by adopting a wireless charging system. However, the conventional wireless charging system has a problem that the coupling coefficient is low and the magnetic field leakage is large. This in turn leads to large eddy current losses in the shield plate or structure due to the magnetic field during the engineering implementation. Therefore, it is necessary to provide a further solution to the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wireless charging structure and system to overcome the not enough that exists among the prior art.
In order to solve the technical problem, the technical scheme of the utility model is that:
a wireless charging structure, comprising: a shield plate, a magnetic core, and a winding;
the magnetic core set up in on the one side of shield plate, the magnetic core includes: the magnetic core body and be formed in protruding structure on the magnetic core body, protruding structure with the magnetic core body encloses into an installation space, the winding accept in the installation space to be fixed in on the magnetic core body of installation space bottom, protruding structure distribute in continuously or discontinuously around the winding.
As the utility model discloses a wireless charging structure's improvement, the shield plate is aluminum plate.
As the utility model discloses a wireless charging structure's improvement, the edge all around of magnetic core body one side is stretched out perpendicularly and is had protruding structure.
In order to solve the technical problem, the technical scheme of the utility model is that:
a wireless charging system, comprising: the transmitting device is positioned on the ground, and the receiving device is installed on the electric automobile; the transmitting device and the receiving device both have the wireless charging structure.
In order to solve the technical problem, the technical scheme of the utility model is that:
a wireless charging structure, comprising: a shield plate, a magnetic core, and a winding;
the magnetic core set up in on the one side of shield plate, the magnetic core includes: the winding is accommodated in the recessed structure and is fixed on the magnetic core body at the bottom of the recessed structure.
As the utility model discloses a wireless charging structure's improvement, the shield plate is aluminum plate.
As the utility model discloses a wireless charging structure's improvement, sunk structure is a shape and is the groove structure of rectangle or square.
In order to solve the technical problem, the technical scheme of the utility model is that:
a wireless charging system, comprising: the transmitting device is positioned on the ground, and the receiving device is installed on the electric automobile; the transmitting device and the receiving device both have the wireless charging structure.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses wireless charging structure is through carrying out optimal design to the magnetic core structure, designs the form for can wrapping up the winding with the magnetic core to improve wireless charging structure's coupling coefficient, solved the problem that the loss that magnetic field arouses among the current wireless charging structure is big on the large side.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic perspective view of an embodiment 1 of a wireless charging structure according to the present invention;
fig. 2 is a schematic perspective view of a wireless charging structure in embodiment 2 of the present invention;
fig. 3 is a magnetic field distribution diagram of a conventional wireless charging system;
fig. 4 is a magnetic field distribution diagram of a wireless charging structure according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the wireless charging structure of the present embodiment includes: shield plate 1, magnetic core 2, and winding 3.
The magnetic core 2 is disposed on one side of the shielding plate 1, wherein the shielding plate 1 may be made of shielding aluminum plate. In the present embodiment, in order to design the magnetic core 2 in a form capable of wrapping the winding 3, the magnetic core 2 includes: a magnetic core body 21 and a protrusion structure 22 formed on the magnetic core body 21.
At this time, the protruding structures 22 and the magnetic core body 21 enclose an installation space, the winding 3 is accommodated in the installation space and fixed on the magnetic core body 21 at the bottom of the installation space, and the protruding structures 22 are continuously or discontinuously distributed around the winding 3. So design, magnetic core 2 wraps up winding 3 wherein to improve wireless charging structure's coupling coefficient, solved the problem that the loss that magnetic field arouses among the current wireless charging structure is big partially.
In one embodiment, in order to form the installation space of the winding 3, a protrusion 22 is vertically protruded from the peripheral edge of one surface of the magnetic core body 21. So set up, when making things convenient for 2 structure shaping of magnetic core, still do benefit to make full use of magnetic core body 21, avoid producing the slitter edge.
Example 2
Based on the wireless charging structure in embodiment 1, this embodiment further provides a wireless charging system, which includes: the device comprises a transmitting device positioned on the ground and a receiving device arranged on the electric automobile.
The winding of the transmitting device and the winding of the receiving device form magnetic mutual inductance, so that the storage battery electrically connected with the receiving device is charged. In order to improve the coupling coefficient of the transmitting device and the receiving device and solve the problem of large loss caused by a magnetic field in the conventional wireless charging structure, the transmitting device and the receiving device are both provided with the wireless charging structure.
Example 3
As shown in fig. 2, the wireless charging structure of the present embodiment includes: shield plate 1, magnetic core 2, and winding 3.
The magnetic core 2 is disposed on one side of the shielding plate 1, wherein the shielding plate 1 may be made of shielding aluminum plate. In the present embodiment, in order to design the magnetic core 2 in a form capable of wrapping the winding 3, the magnetic core 2 includes: a magnetic core body 21 and a recessed structure 23 formed on the magnetic core body 21.
At this time, the recessed structure 23 forms an installation space, and the winding 3 is accommodated in the installation space formed by the recessed structure 23 and fixed on the magnetic core body 21 at the bottom of the recessed structure 23. So design, magnetic core 2 wraps up winding 3 wherein to improve wireless charging structure's coupling coefficient, solved the problem that the loss that magnetic field arouses among the current wireless charging structure is big partially. In one embodiment, the recess 23 is designed as a slot structure with a rectangular or square shape in order to accommodate the assembly of the winding 3.
Example 4
Based on the wireless charging structure in embodiment 3, this embodiment further provides a wireless charging system, which includes: the device comprises a transmitting device positioned on the ground and a receiving device arranged on the electric automobile.
The winding of the transmitting device and the winding of the receiving device form magnetic mutual inductance, so that the storage battery electrically connected with the receiving device is charged. In order to improve the coupling coefficient of the transmitting device and the receiving device and solve the problem of large loss caused by a magnetic field in the conventional wireless charging structure, the transmitting device and the receiving device are both provided with the wireless charging structure.
The coupling coefficient conditions of the wireless charging structures in examples 1 and 3 were verified by using the existing wireless charging system as a comparative example and combining the magnetic field distribution diagram. Fig. 3 is a magnetic field distribution diagram of a conventional wireless charging system, and fig. 4 is a magnetic field distribution diagram of the wireless charging structure of the present embodiment. As can be seen from fig. 3 and 4, the magnetic flux density in the area indicated by the arrow in fig. 3 is relatively low, which proves that relatively less magnetic flux closure will return to the transformer, which is not favorable for improving the transformer coupling coefficient. The area indicated by the arrow in fig. 4 has a higher density of magnetic lines, which proves that the closed magnetic lines can return to the transformer, thereby improving the transformation coupling coefficient.
To sum up, the utility model discloses wireless charging structure is through carrying out optimal design to the magnetic core structure, with the form that the magnetic core design can wrap up the winding to improve wireless charging structure's coupling coefficient, solved the big problem on the large side of loss that magnetic field arouses among the current wireless charging structure.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a wireless charging structure which characterized in that, wireless charging structure includes: a shield plate, a magnetic core, and a winding;
the magnetic core set up in on the one side of shield plate, the magnetic core includes: the magnetic core body and be formed in protruding structure on the magnetic core body, protruding structure with the magnetic core body encloses into an installation space, the winding accept in the installation space to be fixed in on the magnetic core body of installation space bottom, protruding structure distribute in continuously or discontinuously around the winding.
2. The wireless charging structure of claim 1, wherein the shielding plate is an aluminum plate.
3. The wireless charging structure of claim 1, wherein the protrusion extends perpendicularly from a peripheral edge of one side of the magnetic core body.
4. A wireless charging system, comprising: the transmitting device is positioned on the ground, and the receiving device is installed on the electric automobile; the transmitting device and the receiving device each have the wireless charging structure according to any one of claims 1 to 3.
5. A wireless charging structure, characterized in that, wireless charging structure includes: a shield plate, a magnetic core, and a winding;
the magnetic core set up in on the one side of shield plate, the magnetic core includes: the winding is accommodated in the recessed structure and is fixed on the magnetic core body at the bottom of the recessed structure.
6. The wireless charging structure of claim 5, wherein the shielding plate is an aluminum plate.
7. The wireless charging structure according to claim 5, wherein the recess structure is a groove structure having a rectangular or square shape.
8. A wireless charging system, comprising: the transmitting device is positioned on the ground, and the receiving device is installed on the electric automobile; the transmitting device and the receiving device each have a wireless charging structure as claimed in any one of claims 5 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022672797.3U CN214227956U (en) | 2020-11-18 | 2020-11-18 | Wireless charging structure and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022672797.3U CN214227956U (en) | 2020-11-18 | 2020-11-18 | Wireless charging structure and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214227956U true CN214227956U (en) | 2021-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022672797.3U Active CN214227956U (en) | 2020-11-18 | 2020-11-18 | Wireless charging structure and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214227956U (en) |
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2020
- 2020-11-18 CN CN202022672797.3U patent/CN214227956U/en active Active
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