CN213935899U - Wireless transceiver coil outgoing line structure that charges - Google Patents
Wireless transceiver coil outgoing line structure that charges Download PDFInfo
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- CN213935899U CN213935899U CN202022815992.7U CN202022815992U CN213935899U CN 213935899 U CN213935899 U CN 213935899U CN 202022815992 U CN202022815992 U CN 202022815992U CN 213935899 U CN213935899 U CN 213935899U
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Abstract
The utility model discloses a wireless transceiver coil lead-out wire structure that charges, include: at least one first lead, which is a current inflow lead; at least one second lead, which is a current outflow lead; a first lead and a second lead form a twisted pair structure. The utility model discloses constitute two twist structure with electric current inflow lead wire and electric current lead-out wire, differential mode magnetic field can be offset to this kind of two twist structure, and remaining common mode magnetic field reduces the wireless charging coil high frequency radiation that charges.
Description
Technical Field
The utility model relates to a new energy automobile field especially relates to a be used for wireless transceiver coil outgoing line structure that charges.
Background
In recent years, new energy vehicles are rapidly developed, and more people begin to choose to accept an environment-friendly travel mode of an electric vehicle. Meanwhile, many automobile manufacturers consider the automobile development direction in the future and invest a large amount of funds for research and development. However, due to practical obstacles to charging problems, it has not been fully generalized. At present, the most important part of electric vehicles is the batteries and charging devices, and they can only use lithium batteries in a short time due to technical bottlenecks, so that wireless (induction) charging systems become another important research and development point. Compared with a wired charging system, wireless charging has multiple advantages and can conform to the future development trend of new energy automobiles.
The wireless charging system is mainly divided into a Wall end device (electric energy conversion device Wall Box), a ground end coil (BP), a vehicle end controller (VCU) and a vehicle end coil (VP). Among them, the ground end coil (BP) needs to be installed or placed on the ground. The wireless charging transceiver coil mainly performs power transceiving and transmitting functions, is a key wireless charging transceiver coil for wireless charging energy conversion, and mainly performs power transceiving and transmitting functions, and is a key for wireless charging energy conversion. As shown in fig. 1, the conventional wireless charging transceiver coil sequentially comprises, from top to bottom: a cover, a tray, a coil winding, a magnetic core, and a second cover.
In practical charging use, the wireless charging coil needs to complete energy exchange through high-frequency radiation, so that for an outgoing line of the transmitting and receiving coil, a large amount of high-frequency radiation is arranged in the wireless charging coil to generate electromagnetic field radiation (EMF), if the electromagnetic field radiation value is larger and closer to a human body, certain damage can be generated to the human body, and at present, a scheme for solving the problem of external radiation of the outgoing line is not provided.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a can avoid the wireless transceiver coil outgoing line structure that charges that electromagnetic field radiation leaks to reducing wireless charging coil high frequency radiation that charges.
In order to solve the technical problem, the utility model provides a wireless transceiver coil lead-out wire structure that charges, include:
at least one first lead, which is a current inflow lead;
at least one second lead, which is a current outflow lead;
a first lead and a second lead form a twisted pair structure.
Optionally, the outgoing line structure of the wireless charging transceiver coil is further improved, and two, four or eight twisted-pair structures are formed.
Optionally, the further improved wireless charging transceiver coil outgoing line structure further includes:
and the magnetic shield is sleeved on the part of each twisted pair structure, which is positioned outside the wireless charging transceiving coil.
Optionally, the outgoing line structure of the wireless charging transceiver coil is further improved, and the magnetic shielding piece is a magnetic shielding sleeve.
Optionally, the outgoing line structure of the wireless charging transceiver coil is further improved, and a shared magnetic shielding sleeve pipe wall exists between adjacent double-twisted structures.
Optionally, the wireless charging transceiver coil outgoing line structure is further improved, the side wall of the magnetic shielding member includes, from inside to outside:
a base layer made of an insulating material;
a shielding layer, which is formed between the substrate layer and the bonding layer, and is soft magnetic powder;
an adhesive layer for bonding the outer cover layer and the shield layer together;
an outer coating which is an airtight moisture barrier.
Optionally, the outgoing line structure of the wireless charging transceiver coil is further improved, and the substrate layer is a rubber substrate, and other common insulating materials can also be selected.
Optionally, the wireless charging transceiver coil outgoing line structure is further improved, and the soft magnetic powder is a magnetic powder core.
Optionally, the structure of the outgoing line of the wireless charging transceiver coil is further improved, and the adhesive layer is a double-sided adhesive tape, or other existing adhesive can be selected.
Optionally, the wireless charging transceiver coil outgoing line structure is further improved, the outer coating is a PET film, and other common moisture-proof and moisture-proof films can be selected.
Magnetic powder core material (ferromagnetic powder core material) is a composite soft magnetic material formed by mixing and pressing ferromagnetic powder and an insulating medium. The magnetic powder contains Fe, Fe-Ni-Mo, Fe-Si-Al metal powder and amorphous and nanocrystalline alloy powder, and the insulating coating agent can be roughly divided into an organic coating agent (epoxy resin, polyamide resin, silicon resin, polyvinyl alcohol, phenolic resin, polystyrene and the like) and an inorganic coating agent (mica, water glass, oxide layer and the like). The pressing mode mainly comprises cold pressing, warm pressing, vacuum hot pressing, two-step pressing, die wall lubrication pressing and the like. The magnetic material has the advantages of higher saturation magnetic induction intensity, high resistance, good frequency characteristic, low high-frequency loss, high-width constant magnetic conduction, constant magnetic conduction and the like.
Optionally, the outgoing line structure of the wireless charging transceiver coil is further improved, and the adhesive layer is a double-sided adhesive tape.
Optionally, the wireless charging transceiver coil outgoing line structure is further improved, and the outer coating is a PET film.
The utility model reduces the charging high-frequency radiation of the wireless charging coil from two aspects by the following technical proposal, and avoids the leakage of electromagnetic field radiation;
1. the utility model discloses constitute two twist structure with electric current inflow lead wire and electric current lead-out wire, differential mode magnetic field, surplus common mode magnetic field can be offset to this kind of two twist structure.
2. The eddy current loss of the high-permeability strip is very large, high temperature rise can be generated, the efficiency of the whole machine can be reduced, and the high-permeability strip is not suitable for use. Therefore, the utility model discloses choose for use powder core to do the shielding material, it is little to utilize powder core particle diameter, and the eddy current effect reduces the eddy current loss for a short time, avoids the electromagnetic field radiation to leak.
Drawings
The drawings of the present application are intended to illustrate the general nature of methods, structures and/or materials used in accordance with certain exemplary embodiments of the present application, and to supplement the description presented in the specification. The drawings of the present invention, however, are not to scale and may not accurately reflect the precise structural or performance characteristics of any given embodiment, and should not be construed as limiting or restricting the scope of numerical values or attributes encompassed by exemplary embodiments in accordance with the present invention. The present invention will be described in further detail with reference to the following detailed description and accompanying drawings:
fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a third embodiment of the present invention.
Description of the reference numerals
Substrate layer 3.1
Shielding layer 3.2
Adhesive layer 3.3
An outer coating layer 3.4.
Detailed Description
The following description of the embodiments of the present invention is provided by way of specific examples, and other advantages and technical effects of the present invention will be fully apparent to those skilled in the art from the disclosure of the present invention. The utility model discloses can also implement or use through different embodiment, each item detail in this specification can also be used based on different viewpoints, carries out various decorations or changes under the general design thought that does not deviate from the utility model. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. The following exemplary embodiments of the present invention may be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art.
It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present. Like reference numerals refer to like elements throughout the drawings.
A first embodiment;
as shown in fig. 1, the utility model provides a wireless transceiver coil outgoing line structure that charges, it is connected at wireless transceiver coil A that charges, include:
at least one first lead 1, which is a current inflow lead;
at least one second lead 2, which is a current outflow lead;
a first lead 1 and a second lead 2 form a double-twisted structure.
Optionally, the first embodiment of the wireless charging transceiver coil outgoing line structure is further modified, and two, four or eight twisted-pair structures are formed.
The utility model discloses first embodiment constitutes two twist pair structures with electric current inflow lead wire and electric current outgoing line, and this kind of two twist pair structures can offset differential mode magnetic field, surplus common mode magnetic field.
A second embodiment;
as shown in fig. 2, the utility model provides a wireless transceiver coil outgoing line structure that charges, it is connected at wireless transceiver coil A that charges, include:
at least one first lead 1, which is a current inflow lead;
at least one second lead 2, which is a current outflow lead;
a first lead 1 and a second lead 2 form a double-twisted structure;
the magnetic shielding piece 3 is sleeved on the part of each twisted pair structure, which is positioned outside the wireless charging transceiving coil A, and can be selectively and fixedly connected with the wireless charging transceiving coil through a buckle;
optionally, the second embodiment of the wireless charging transceiver coil outgoing line structure is further improved, and the magnetic shielding element is a magnetic shielding sleeve.
Optionally, the second embodiment of the wireless charging transceiver coil outgoing line structure is further improved, and a shared magnetic shielding sleeve pipe wall exists between adjacent twisted-pair structures.
A third embodiment;
as shown in fig. 2 and fig. 3, the utility model provides a wireless transceiver coil outgoing line structure that charges, it is connected at wireless transceiver coil A that charges, include:
at least one first lead 1, which is a current inflow lead;
at least one second lead 2, which is a current outflow lead;
a first lead 1 and a second lead 2 form a double-twisted structure;
a base layer 3.1 made of an insulating material, for example a rubber base;
a shielding layer 3.2 formed between the base layer and the adhesive layer, which is a soft magnetic powder, such as a magnetic powder core;
an adhesive layer 3.3 for bonding the outer cover layer and the shield layer together, for example the adhesive layer is a double-sided tape;
an outer coating 3.4 which is an airtight moisture barrier, for example a PET film.
The utility model discloses the magnetic shielding piece suit that selects the powder core material as shielding material is on the two twisted structure, on one hand, utilize this two twisted structure can offset the differential mode magnetic field; on the other hand, the eddy current loss is reduced by utilizing the small particle diameter of the powder core material and the small eddy current effect, and the electromagnetic field radiation is prevented from leaking.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The present invention has been described in detail with reference to the specific embodiments and examples, but these should not be construed as limitations of the present invention. Numerous variations and modifications can be made by those skilled in the art without departing from the principles of the invention, which should also be considered as within the scope of the invention.
Claims (10)
1. The utility model provides a wireless transceiver coil lead-out wire structure that charges which characterized in that includes:
at least one first lead, which is a current inflow lead;
at least one second lead, which is a current outflow lead;
a first lead and a second lead form a twisted pair structure.
2. The wireless charging transceiver coil lead-out structure of claim 1, wherein: which is formed with two, four or eight twisted-pair structures.
3. The wireless charging transceiver coil lead-out structure of claim 1, further comprising:
and the magnetic shield is sleeved on the part of each twisted pair structure, which is positioned outside the wireless charging transceiving coil.
4. The wireless charging transceiver coil lead-out structure of claim 3, wherein: the magnetic shield is a magnetic shield sleeve.
5. The wireless charging transceiver coil lead-out structure of claim 4, wherein: a shared magnetically shielded sleeve wall exists between adjacent twisted pairs.
6. The wireless charging transceiver coil lead-out structure of claim 3, wherein the side wall of the magnetic shield comprises from inside to outside:
a base layer made of an insulating material;
a shielding layer, which is formed between the substrate layer and the bonding layer, and is soft magnetic powder;
an adhesive layer for bonding the outer cover layer and the shield layer together;
an outer coating which is an airtight moisture barrier.
7. The wireless charging transceiver coil lead-out structure of claim 6, wherein: the matrix layer is a rubber matrix.
8. The wireless charging transceiver coil lead-out structure of claim 6, wherein: the soft magnetic powder is a magnetic powder core.
9. The wireless charging transceiver coil lead-out structure of claim 6, wherein: the adhesive layer is a double-sided tape.
10. The wireless charging transceiver coil lead-out structure of claim 6, wherein: the outer coating is a PET film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022815992.7U CN213935899U (en) | 2020-11-30 | 2020-11-30 | Wireless transceiver coil outgoing line structure that charges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022815992.7U CN213935899U (en) | 2020-11-30 | 2020-11-30 | Wireless transceiver coil outgoing line structure that charges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213935899U true CN213935899U (en) | 2021-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022815992.7U Active CN213935899U (en) | 2020-11-30 | 2020-11-30 | Wireless transceiver coil outgoing line structure that charges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213935899U (en) |
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- 2020-11-30 CN CN202022815992.7U patent/CN213935899U/en active Active
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