Ultrathin nanocrystalline wireless charging module

Abstract

The utility model discloses an ultrathin nanocrystalline wireless charging module, which relates to the technical field of wireless charging modules, and comprises a coil and a magnetic isolation sheet assembly which are sequentially arranged from top to bottom, the magnetic isolation sheet assembly comprises a nanocrystalline magnetic isolation sheet, and the upper surface and the lower surface of the nanocrystalline magnetic isolation sheet are respectively provided with a first back adhesive layer and a second back adhesive layer. A ferrite magnetic isolation sheet is attached to the middle of the nanocrystalline magnetic isolation sheet through a first back adhesive layer, the area, located on the outer side of the ferrite magnetic isolation sheet, of the nanocrystalline magnetic isolation sheet is attached to the coil through the first back adhesive layer, and a release protective film is attached to the lower surface of the nanocrystalline magnetic isolation sheet through a second back adhesive layer. According to the utility model, the magnetic isolation sheet assembly composed of the nanocrystalline magnetic isolation sheet, the first back glue layer, the second back glue layer, the ferrite magnetic isolation sheet and the release protective film is arranged, and the nanocrystalline magnetic isolation sheet is made of a material which is formed by superposing 4-12 layers of nanocrystalline films and has a thickness of 0.1-0.5 mm, so that the wireless charging module has an ultrathin effect, is suitable for installation in a smaller space, and is convenient to use. And the magnetic isolation effect is obvious.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless charging modules, in particular to an ultra-thin nanocrystalline wireless charging module. Background Art

[0002] In existing technologies, charging mobile phones and smart mobile devices is often required in cars or other modes of transportation. However, current in-vehicle wireless charging (in-vehicle wireless charging in this article refers only to wireless charging that uses general automotive-grade reliability, often with the following characteristics: automotive-grade connector, QI standard three-coil, 9-16V power supply, overvoltage, overcurrent, overtemperature, foreign object detection, and EMC class 3 or higher, not a simple automotive solution for consumer-grade products) is relatively thick, generally between 16mm and 25mm. This has a certain impact on the overall vehicle layout in the original equipment market. Due to the overall space considerations, the impact is slightly less. However, in the automotive aftermarket, due to the limited fixed space status of the vehicle when it leaves the factory, it is necessary to fully utilize the existing space to install wireless charging, so the size and thickness of the wireless charging device have a significant impact.

[0003] Traditional automotive-grade wireless charging modules, which are 16mm to 25mm thick, are too thick to be designed and installed in many vehicle models, reducing the product's versatility and accessibility. Thinner and smaller products promise greater versatility and have positive implications for product standardization, serialization, and mass production. Therefore, this utility model proposes an ultra-thin nanocrystal wireless charging module. Utility Model Content

[0004] Technical problems solved

[0005] The purpose of the present invention is to remedy the deficiencies of the prior art and to provide an ultra-thin nanocrystalline wireless charging module.

[0006] Technical Solution

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an ultra-thin nanocrystalline wireless charging module, comprising a coil and a magnetic isolation plate assembly arranged in sequence from top to bottom, the magnetic isolation plate assembly comprising a nanocrystalline magnetic isolation plate, the upper and lower surfaces of the nanocrystalline magnetic isolation plate are respectively provided with a first backing layer and a second backing layer, the middle part of the nanocrystalline magnetic isolation plate is adhered to a ferrite magnetic isolation plate through the first backing layer, the nanocrystalline magnetic isolation plate is adhered to the coil through the first backing layer in the outer area of the ferrite magnetic isolation plate, the lower surface of the nanocrystalline magnetic isolation plate is adhered to a release protective film through the second backing layer, and the magnetic isolation plate assembly consisting of the nanocrystalline magnetic isolation plate, the first backing layer, the second backing layer, the ferrite magnetic isolation plate and the release protective film is arranged, the nanocrystalline magnetic isolation plate is a material with a thickness of 0.1-0.5mm formed by stacking 4-12 layers of nanocrystalline thin films, so that the wireless charging module has an ultra-thin effect, is suitable for installation in a smaller space, and has an obvious magnetic isolation effect.

[0008] Preferably, the thickness of the nanocrystalline magnetic isolation sheet is 0.1-0.5 mm.

[0009] Preferably, the nanocrystalline magnetic isolation sheet comprises 4-12 stacked nanocrystalline thin films.

[0010] Preferably, a groove is provided in the middle of the ferrite magnetic isolation sheet, an NTC element is provided in the groove, and the NTC element is connected to a pair of leads.

[0011] Preferably, the nanocrystalline magnetic isolation sheet is a component made of soft magnetic material.

[0012] Beneficial effects:

[0013] Compared with the existing technology, this ultra-thin nanocrystal wireless charging module has the following benefits:

[0014] The utility model provides a magnetic isolation sheet assembly consisting of a nanocrystalline magnetic isolation sheet, a first back adhesive layer, a second back adhesive layer, a ferrite magnetic isolation sheet and a release protective film. The nanocrystalline magnetic isolation sheet is a material with a thickness of 0.1-0.5 mm formed by stacking 4-12 layers of nanocrystalline thin films, so that the wireless charging module has an ultra-thin effect, is suitable for installation in a smaller space, and has an obvious magnetic isolation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the utility model;

[0018] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0019] In the picture:

[0020] 1. Coil; 2. Magnetic isolation sheet assembly; 3. Groove; 4. NTC element; 5. Lead; 201. Nanocrystalline magnetic isolation sheet; 202. First adhesive layer; 203. Second adhesive layer; 204. Ferrite magnetic isolation sheet; 205. Release protective film. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1 to 3 As shown, the utility model provides a technical solution: an ultra-thin nanocrystalline wireless charging module, comprising a coil 1 and a magnetic isolation sheet assembly 2 arranged in sequence from top to bottom, the magnetic isolation sheet assembly 2 comprises a nanocrystalline magnetic isolation sheet 201, the upper surface and the lower surface of the nanocrystalline magnetic isolation sheet 201 are respectively provided with a first backing layer 202 and a second backing layer 203, the middle part of the nanocrystalline magnetic isolation sheet 201 is adhered to a ferrite magnetic isolation sheet 204 through the first backing layer 202, and the nanocrystalline magnetic isolation sheet 201 is adhered to the outer area of the ferrite magnetic isolation sheet 204 through the first backing layer 203. 02 is bonded to the coil 1, and the lower surface of the nanocrystalline magnetic isolation sheet 201 is bonded with a release protective film 205 through the second back adhesive layer 203. The magnetic isolation sheet assembly 2 composed of the nanocrystalline magnetic isolation sheet 201, the first back adhesive layer 202, the second back adhesive layer 203, the ferrite magnetic isolation sheet 204 and the release protective film 205 is arranged. The nanocrystalline magnetic isolation sheet 201 is a material with a thickness of 0.1-0.5mm formed by stacking 4-12 layers of nanocrystalline thin films, which makes the wireless charging module ultra-thin, suitable for installation in a smaller space, and has obvious magnetic isolation effect.

[0023] The nanocrystalline magnetic isolation sheet 201 in the present application is a component made of soft magnetic material. The thickness of the nanocrystalline magnetic isolation sheet 201 is 0.1-0.5 mm. The nanocrystalline magnetic isolation sheet 201 includes 4-12 layers of nanocrystalline thin films stacked together.

[0024] Please pay attention to Figure 1 and Figure 3A groove 3 is provided in the middle of the ferrite magnetic isolation sheet 204 , an NTC element 4 is provided in the groove, and a pair of leads 5 are connected to the NTC element.

[0025] Working principle: A magnetic isolation sheet assembly 2 consisting of a nanocrystalline magnetic isolation sheet 201, a first adhesive layer 202, a second adhesive layer 203, a ferrite magnetic isolation sheet 204 and a release protective film 205 is provided. The nanocrystalline magnetic isolation sheet 201 is a material with a thickness of 0.1-0.5mm and is formed by stacking 4-12 layers of nanocrystalline thin films. This makes the wireless charging module ultra-thin, suitable for installation in a smaller space, and has an obvious magnetic isolation effect.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultra-thin nanocrystal wireless charging module, characterized by: The invention comprises a coil (1) and a magnetic isolation sheet assembly (2) arranged in sequence from top to bottom, wherein the magnetic isolation sheet assembly (2) comprises a nanocrystalline magnetic isolation sheet (201), the upper surface and the lower surface of the nanocrystalline magnetic isolation sheet (201) are respectively provided with a first backing layer (202) and a second backing layer (203), the middle portion of the nanocrystalline magnetic isolation sheet (201) is bonded to a ferrite magnetic isolation sheet (204) via the first backing layer (202), the nanocrystalline magnetic isolation sheet (201) is bonded to the coil (1) via the first backing layer (202) in an area outside the ferrite magnetic isolation sheet (204), and the lower surface of the nanocrystalline magnetic isolation sheet (201) is bonded to a release protective film (205) via the second backing layer (203).

2. The ultra-thin nanocrystal wireless charging module according to claim 1, characterized in that: The thickness of the nanocrystalline magnetic isolation sheet (201) is 0.1-0.5 mm.

3. The ultra-thin nanocrystal wireless charging module according to claim 1, characterized in that: The nanocrystalline magnetic isolation sheet (201) comprises 4 to 12 stacked nanocrystalline thin films.

4. The ultra-thin nanocrystal wireless charging module according to claim 1, characterized in that: A groove (3) is provided in the middle of the ferrite magnetic isolation sheet (204), an NTC element (4) is arranged in the groove, and the NTC element is connected to a pair of leads (5).

5. The ultra-thin nanocrystal wireless charging module according to claim 1, characterized in that: The nanocrystalline magnetic isolation sheet (201) is a component made of soft magnetic material.

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