CN114267525A

CN114267525A - Coil structure and assembling method thereof

Info

Publication number: CN114267525A
Application number: CN202111566674.4A
Authority: CN
Inventors: 张俊云
Original assignee: Lanto Electronic Ltd
Current assignee: Lanto Electronic Ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-04-01
Anticipated expiration: 2041-12-20
Also published as: CN114267525B

Abstract

The embodiment of the invention discloses a coil structure and an assembling method thereof, wherein the coil structure comprises a wireless electric energy coil attached to a shielding layer, a main body part of a magnet unit arranged around the wireless electric energy coil, a first part of a coil fixing device comprising an induction coil and a coil fixing device for embedding the induction coil to fix the position of the induction coil, and a second part comprising an electronic shielding film, wherein the main body part, the first part and the second part are combined, one surface of the coil fixing device embedded with the induction coil, far away from the main body part, is attached between the wireless electric energy coil and the magnet unit by using a first gasket, the electronic shielding film is covered on the wireless electric energy coil and attached to the main body part of the induction coil by using a second gasket, the positions of the wireless electric energy coil and the induction coil are ensured, and the coil structure has better performance.

Description

Coil structure and assembling method thereof

Technical Field

The embodiment of the invention relates to the field of coil production, in particular to a coil structure and an assembling method of the coil structure.

Background

In the field of wireless power transmission technology, how to increase the power and transmission efficiency of wireless charging becomes a hot topic.

The wireless charging is a result of interaction between wireless electric fields, the charging efficiency can be regarded as the degree of engagement between the electric fields of the transmitting terminal and the receiving terminal, and the better the degree of engagement, the higher the charging efficiency. Since the decisive factor of the wireless charging power comes from the transmitting end, the transmission efficiency is affected by both the transmitting end and the receiving end, and the matching degree between the transmitting end and the receiving end is an important influencing factor. When the center of the transmitting end electric field is coincident with that of the receiving end induction electric field and the distance between the transmitting end electric field and the receiving end induction electric field is fixed, the charging efficiency can reach the maximum. Therefore, during assembly, the positions of the wireless power coils at the transmitting end and the receiving end determine the degree of engagement of the electric field, which directly affects the charging efficiency.

Disclosure of Invention

In view of this, embodiments of the present invention provide a coil structure and an assembly method of the coil structure, which can fix a position of a wireless power coil and achieve better transmission efficiency of wireless power.

In a first aspect, a coil structure according to an embodiment of the present invention includes:

the wireless power coil comprises a main body part and a power supply part, wherein the main body part comprises a shielding layer, a wireless power coil and a magnet unit, the magnet unit is arranged around the wireless power coil, and the wireless power coil and the magnet unit are attached to the shielding layer;

a first portion including an induction coil and a coil fixing device configured to embed the induction coil to fix a position of the induction coil, the coil fixing device being attached to the shielding layer between the wireless power coil and the magnet unit, a side of the coil fixing device where the induction coil is embedded being away from the main body portion; and

the second part comprises an electronic shielding film, the electronic shielding film covers the wireless power coil and the induction coil, and the electronic shielding film is attached to the main body part.

Optionally, the wireless power coil, the magnet unit and the coil fixing device are attached to the shielding layer through a first adhesive;

the electronic shielding film is attached to the main body portion through second adhesive, the second adhesive is arranged on the edge of the electronic shielding film, and a plurality of second adhesives are arranged at intervals.

Optionally, the outlet end of the wireless power coil has an avoidance portion formed in a shape curved in a vertical direction to avoid the induction coil.

Optionally, the shielding layer has an outgoing line portion, and the outgoing line portion is located at an edge of the shielding layer, so that outgoing line ends of the wireless power coil and the induction coil are exposed;

the magnet units are arranged on two sides of the outgoing part to form a circular arc surrounding the wireless power coil so as to avoid the outgoing part.

Optionally, the coil fixing device has a coil slot configured for the induction coil to be embedded to fix a position of the induction coil;

the coil fixing device is provided with a notch avoiding the wire outlet end of the induction coil.

Optionally, the first adhesive and the second adhesive are pressure-sensitive adhesives;

the coil fixing device is made of PC plastic.

In a second aspect, a method for assembling a coil structure according to an embodiment of the present invention includes:

providing a first portion comprising an induction coil affixed to a first pad and a coil fixture configured for embedding the induction coil to fix a position of the induction coil;

providing a second portion comprising an electron shielding film attached to a second gasket;

providing a body part, wherein the body part comprises a wireless power coil attached to a shielding layer and a magnet unit surrounding the wireless power coil;

assembling the first portion and the body portion such that the coil fixing device is attached to the shielding layer between the wireless power coil and the magnet unit, and a surface of the coil fixing device, in which the induction coil is embedded, is away from the body portion;

tearing off the first gasket;

assembling the second portion with the body portion such that the electronic shielding film covers the wireless power coil and the induction coil; and

and tearing off the second gasket.

Optionally, the first part is assembled in a manner that includes:

attaching the induction coil to the first shim; and

mounting the coil fixture to the induction coil;

and the first gasket is provided with third adhesive corresponding to the induction coil.

Optionally, the first pad has a fixing portion disposed at one end of the first pad, and the fixing portion is configured to fix the outlet end of the induction coil.

Optionally, the second part is assembled in a manner that includes:

attaching the electron shielding film to the second gasket;

the second gasket is provided with second adhesive, the position of the second adhesive corresponds to the edge of the electronic shielding film, and a plurality of second adhesives are spaced from each other.

Optionally, the assembling manner of the main body part includes:

attaching the magnet unit to the shielding layer;

attaching the wireless power coil to the shielding layer;

wherein, the shielding layer is provided with a first adhesive.

Optionally, the third adhesive is a UV adhesive, and the tearing off the first pad includes:

irradiating the first pad with UV light;

separating the first spacer from the induction coil and the coil fixture.

Optionally, the first pad and the second pad are made of a transparent material.

the coil fixing device is made of PC plastic;

the first gasket and the second gasket are made of polyester resin.

The coil structure and the assembling method thereof of the embodiment of the invention combine the main body part, the first part and the second part by arranging the main body part which comprises the wireless power coil attached to the shielding layer and the magnet unit arranged around the wireless power coil, the first part which comprises the induction coil and the coil fixing device for embedding the induction coil to fix the position of the induction coil and the second part which comprises the electronic shielding film, the first gasket is used for attaching the surface of the coil fixing device embedded with the induction coil to the position between the wireless power coil and the magnet unit far away from the main body part, and the second gasket is used for attaching the electronic shielding film to the wireless power coil and the induction coil to the main body part so as to ensure the positions of the wireless power coil and the induction coil and ensure that the coil structure has better performance.

Drawings

The above and other objects, features and advantages of the embodiments of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

FIG. 1 is a schematic perspective view of a coil structure according to an embodiment of the present invention;

FIG. 2 is an exploded view of a coil structure according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a body portion of a coil structure of an embodiment of the present invention;

FIG. 4 is a schematic diagram of a first portion of a coil structure in accordance with an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a first portion of a coil structure of an embodiment of the present invention taken along plane A-A;

FIG. 6 is a schematic diagram of the wireless power coil of the body portion and the induction coil of the first portion of the coil structure in accordance with an embodiment of the present invention;

FIG. 7 is a flow chart illustrating a method of assembling a coil structure according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a first shim of the first part of a method of assembling a coil structure in accordance with an embodiment of the present invention;

FIG. 9 is a flow chart illustrating the manner in which the first part of the method of assembling the coil structure according to the embodiment of the present invention is assembled;

fig. 10 is a schematic view of a first part in step S110 of the manner of assembly of the first part of the assembly method of the coil structure of the embodiment of the present invention;

fig. 11 is a schematic view of a first part in step S120 of the manner of assembly of the first part of the assembly method of the coil structure of the embodiment of the present invention;

FIG. 12 is a schematic diagram of a second shim of a second part of the assembly method of a coil structure in accordance with an embodiment of the invention;

FIG. 13 is a flow chart illustrating the manner in which the second part of the method of assembling the coil structure according to the embodiment of the present invention is assembled;

fig. 14 is a schematic view of a second part in step S210 of the manner of assembly of the second part of the assembly method of the coil structure of the embodiment of the present invention;

fig. 15 is a flow chart showing the manner of assembling the main body portion of the assembling method of the coil structure according to the embodiment of the present invention;

fig. 16 is a schematic structural view of a shield layer of a main body portion of an assembling method of a coil structure of the embodiment of the invention;

fig. 17 is a flowchart illustrating step S500 in the assembling method of the coil structure according to the embodiment of the present invention;

description of reference numerals:

1-a first part; 11-an induction coil; 12-a coil fixture; 121-coil slot; 13-a first shim; 131-a fixed part; 14-third viscose;

2-a second part; 21-an electron shielding film; 22-second adhesive; 23-a second gasket;

3-a body portion; 31-a shielding layer; 311-outgoing part; 32-a wireless power coil; 321-an avoidance part; 33-a magnet unit; 34-first adhesive.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout this specification, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Fig. 1 is a schematic perspective view of a coil structure according to an embodiment of the present invention. Fig. 2 is an exploded view of a coil structure according to an embodiment of the present invention. As shown in fig. 1 and 2, the coil structure includes a body portion 3, a first portion 1, and a second portion 2.

Fig. 3 is a schematic structural view of a main body portion of a coil structure of an embodiment of the present invention. As shown in fig. 3, the body portion 3 includes a shield layer 31, a wireless power coil 32, and a magnet unit 33. The shielding layer 31 has a first adhesive 34 thereon, and the wireless power coil 32 and the magnet unit 33 are attached to the shielding layer 31 through the first adhesive 34.

In the present embodiment, the circular wireless power coil 32 is disposed at the center of the shielding layer 31, and the magnet unit 33 is disposed around the wireless power coil 32. That is, the magnet units 33 are adjacent to each other, arranged in a circular arc, and attached to the shielding layer 31 together with the wireless power coil 32 by the first adhesive 34. Alternatively, the shape of the wireless power coil 32 may be changed, and the magnet units 33 may have other arrangement forms, for example, arranged on an arc around the wireless power coil 32 with a space therebetween. In the present embodiment, the shielding layer 31 is formed in a polygonal shape, is configured to hold the wireless power coil 32 and the magnet unit 33, and plays a role in shielding interference, heat dissipation, and heat conduction. The material of the shielding layer 31 is graphite. Alternatively, the shielding layer 31 may have other shapes, and the material thereof may also be other materials capable of shielding the influence of the external magnetic field on the main body portion 3.

Fig. 4 is a schematic structural view of a first portion of a coil structure according to an embodiment of the present invention. Fig. 5 is a cross-sectional view of a first portion of a coil structure of an embodiment of the present invention taken along plane a-a. As shown in fig. 4 and 5, the first part 1 includes an induction coil 11 and a coil fixing device 12, and the coil fixing device 12 is configured to embed the induction coil 11 to fix a position of the induction coil 11. The coil fixing device 12 has a coil slot 121, and the coil slot 121 has a width matching with the induction coil 11 so that the induction coil 11 is embedded therein. In the present embodiment, the induction coil 11 is an NFC identification coil, which is formed in a ring shape and has a lead-out end, and therefore, the coil fixing device 12 is also formed in a circular arc corresponding thereto, having a notch that avoids the lead-out end of the induction coil 11. Alternatively, the induction coil 11 may be a coil for performing other functions, and may have other shapes, and the shape of the coil fixing device 12 is changed accordingly.

In the assembling process, the coil fixing device 12 is attached to the shielding layer 31 between the wireless power coil 32 and the magnet unit 33, and the side of the coil fixing device 12 where the induction coil 11 is embedded is away from the main body portion 3. That is, the coil fixing device 12 embedded with the induction coil 11 is located between the wireless power coil 32 and the magnet unit 33, and is attached to the shielding layer 31 through the first adhesive 34, and the surface thereof having the coil slot 121 faces upward, so that the induction coil 11 embedded therein is exposed. The coil fixing device 12 can fix the position of the induction coil 11, so that the relative position relationship between the induction coil 11 and the wireless power coil 32 is prevented from being changed in the using process, and unnecessary displacement is avoided from being generated to influence the function of the coil.

Further, the coil fixing device 12 is made of an insulating material, and in the present embodiment, the coil fixing device 12 is made of PC plastic. That is, when the induction coil 11 is directly adhered to the adhesive, friction may be generated, so that unnecessary current may be generated to damage the induction coil 11, and the induction coil 11 is fixed by the coil fixing device 12 made of an insulating material, thereby avoiding the occurrence of such a situation. Alternatively, the coil fixing device 12 may be made of other insulating materials.

Fig. 6 is a schematic diagram of the wireless power coil of the main body portion and the induction coil of the first portion of the coil structure according to the embodiment of the present invention. As shown in fig. 6, the outlet end of the wireless power coil 32 has a relief portion 321, and the relief portion 321 is formed in a shape curved in the vertical direction so as to avoid the induction coil 11. That is, when the wireless power coil 32 and the induction coil 11 are both attached to the shielding layer 31 by the first adhesive 34, they are approximately located on the same plane, so that the wire outlet ends of the wireless power coil 32 and the induction coil 11 do not interfere with each other when being installed, and the wire outlet end of the wireless power coil 32 has a downward-curved arc to avoid the induction coil 11. Alternatively, the outlet end of the wireless power coil 32 may also pass over the induction coil 11, and may also have an effect of avoiding the induction coil 11. This design ensures that the induction coil 11 and the wireless power coil 32 can be combined at the same level, thereby reducing the product volume and avoiding space waste.

Further, for the convenience of assembly, the shielding layer 31 has an outgoing line portion 311, and the outgoing line portion 311 is located at an edge of the shielding layer 31, so that the outgoing line ends of the wireless power coil 32 and the induction coil 11 are exposed. In the present embodiment, the wire-outgoing portion 311 is formed as a notch at the edge of the shielding layer 31, and correspondingly, the magnet units 33 are arranged on both sides of the wire-outgoing portion 311 to form a circular arc surrounding the wireless power coil 32.

Since the main body portion 3 and the first portion 1 include the wireless power coil 32 and the induction coil 11, the second portion 2 includes the electronic shielding film 21, and the electronic shielding film 21 is configured to cover the wireless power coil 32 and the induction coil 11 to shield the product from the external electric field. The electronic shielding film 21 is attached to the main body portion 3 through a second adhesive 22, the second adhesive 22 is disposed on the edge of the electronic shielding film 21, and a space is formed between the second adhesives 22. That is, the second adhesive 22 is formed in several parts and dispersedly arranged on the surface of the product to provide the attaching function and the heat dissipation function.

In the embodiment, the electronic shielding film 21 is formed as a circular thin film capable of covering the wireless power coil 32 and the induction coil 11, and since the thickness of the magnet unit 33 is greater than that of the wireless power coil 32 and the induction coil 11, the electronic shielding film 21 can be attached to the magnet unit 33 through the second adhesive 22, so as not to contact with the wireless power coil 32 and the induction coil 11. The second adhesive 22 is positioned on an arc corresponding to the circular arc of the magnet unit 33 and formed in arc shapes separated from each other. Alternatively, the shape of the electronic shielding film 21 may be changed so as to cover the wireless power coil 32 and the induction coil 11. The shape and position of the second adhesive 22 may be changed, and it is sufficient that the electronic shielding film 21 is attached to the main body portion 3.

It should be noted that, in the present embodiment, the centers of the shielding layer 31, the wireless power coil 32, the magnet unit 33 and the induction coil 11 correspond to each other, and this design can increase the matching degree of the coil structure, so that the wireless charging efficiency is improved.

Fig. 7 is a flow chart illustrating an assembling method of the coil structure according to the embodiment of the present invention. As shown in fig. 7, the assembly method of the coil structure includes steps S100 to S700 as follows:

step S100, providing a first part.

The first part 1 comprises an induction coil 11 attached to a first pad 13 and a coil fixing means 12, the coil fixing means 12 being configured for embedding the induction coil 11 for fixing the position of the induction coil 11.

Fig. 8 is a schematic structural view of a first spacer of the first part of the assembly method of the coil structure according to the embodiment of the present invention. As shown in fig. 8, the first pad 13 is provided with a third adhesive 14 corresponding to the induction coil 11. Further, the first pad 13 has a fixing portion 131, and the fixing portion 131 is disposed at one end of the first pad 13 and configured to fix the outlet end of the induction coil 11. That is, in the production process, the first pad 13 plays a role of supporting the induction coil 11, the induction coil 11 is attached to the first pad 13 through the third adhesive 14, and the outlet end is fixed to the fixing portion 131 to prevent unnecessary displacement.

Further, the first pad 13 is made of a transparent material, that is, the first pad 13 has a good light-transmitting effect, and is convenient to operate under the condition that the alignment between the induction coil 11 and the third adhesive 14 is performed by using an optical method. In the present embodiment, the first pad 13 is made of dacron resin, and has a characteristic of being easily peeled off, and alternatively, other transparent materials which are easily peeled off from the adhesive may be used.

Fig. 9 is a flow chart illustrating an assembly manner of the first part of the assembly method of the coil structure according to the embodiment of the present invention. As shown in fig. 9, the assembly method of the first part 1 of the assembly method of the coil structure includes steps S110 and S120 as follows:

step S110, attaching the induction coil to the first pad.

Fig. 10 is a schematic diagram of a first part in step S110 of an assembly manner of the first part of the assembly method of the coil structure according to the embodiment of the present invention. As shown in fig. 10, in this step, the induction coil 11 is attached to the first pad 13 by the third adhesive 14.

Step S120 is to mount the coil fixing device 12 to the induction coil.

Fig. 11 is a schematic diagram of a first part in step S120 of an assembly manner of the first part of the assembly method of the coil structure according to the embodiment of the present invention. As shown in fig. 11, in this step, the side of the coil fixing device 12 having the coil slot 121 is directed toward the induction coil 11, and the induction coil 11 is embedded therein. Since the induction coil 11 is attached to the first pad 13 through the third adhesive 14, the third adhesive 14 has a width slightly wider than that of the induction coil 11, so as to provide adhesive force to the coil fixing device 12, and attach the coil fixing device to the first pad 13.

It should be understood that the first part 1 may be assembled or may be provided directly from the outside, and the application is not limited thereto.

Step S200, providing a second part.

The second part 2 includes an electron shielding film 21 attached to a second spacer 23.

Fig. 12 is a schematic structural view of a second spacer of the second part of the assembly method of the coil structure according to the embodiment of the present invention. As shown in fig. 12, the second pad 23 is provided with a second adhesive 22, the position of the second adhesive 22 corresponds to the edge of the electronic shielding film 21, and a plurality of second adhesives 22 are spaced from each other.

Further, the second pad 23 is also made of a transparent material for the same reason as the first pad 13. In this embodiment, the second pad 23 is also made of dacron resin, and alternatively, other transparent materials that can be easily peeled off from the adhesive may be used.

Fig. 13 is a flow chart illustrating an assembly manner of the second part of the assembly method of the coil structure according to the embodiment of the present invention. The assembly of the second part 2 of the assembly method of the coil structure comprises the following steps S210:

step S210 is to attach the electron-shielding film 21 to the second spacer 23.

Fig. 14 is a schematic diagram of a second part in step S210 of an assembly manner of the second part of the assembly method of the coil structure according to the embodiment of the present invention. As shown in fig. 14, the electronic shielding film 21 is covered on the second adhesive 22 to be attached to the second pad 23. In the present embodiment, since the plurality of second adhesives 22 are disposed on the circular arcs matching the edges of the electronic shielding film 21, the circular electronic shielding film 21 should be formed concentrically with the circular arcs where the second adhesives 22 are located.

It should be understood that the second part 2 may be assembled or may be provided directly from the outside, and the application is not limited thereto.

Step S300, providing the main body part.

The body portion 3 includes a wireless power coil 32 attached to the shield layer 31 and a magnet unit 33 surrounding the wireless power coil 32.

Fig. 15 is a flowchart illustrating an assembly method of a main body portion of the assembly method of the coil structure according to the embodiment of the present invention. As shown in fig. 15, the second part 2 of the assembly method of the coil structure is assembled in a manner including steps S310 and S320 as follows:

step S310 attaches the magnet unit to the shielding layer.

The magnet units 33 formed in a predetermined arrangement shape are attached to the shielding layer 31 covered with the first adhesive 34. The circular shape of the arc in which the magnet unit 33 is located corresponds to the center of the shield layer 31.

Step S320, attaching the wireless power coil to the shielding layer.

The wireless power coil 32 is attached to the shielding layer 31 at the center of the magnet unit 33 by the first adhesive 34. Wherein the center of the wireless power coil 32 formed in a circular shape corresponds to the center of the shield layer 31.

Fig. 16 is a schematic structural view of a shield layer of a main body portion of an assembly method of a coil structure of an embodiment of the present invention. As shown in fig. 16, the shielding layer 31 is provided with a first adhesive 34. In the present embodiment, the correspondence between the wireless power coil 32 and the magnet unit 33 and the center of the shield layer 31 is achieved by an optical instrument. That is, a backlight is formed by providing a light source on the back surface of the element, so that the sensor located above the shielding layer 31 grasps the intersection point between the outer contour of the shielding layer 31 and the backlight, and is automatically fitted to the center point of the shielding layer 31, and after the fitted center point is obtained, further assembly is completed by a robot. The design can eliminate other interference during assembly, so that the wireless power coil 32 and the magnet unit 33 correspond to the center of the shielding layer 31, the coil structure achieves a better wireless power transmission effect, and errors are prevented from influencing subsequent production or product performance. Alternatively, the assembly of the body portion 3 may take other forms.

Further, in the embodiment, the first adhesive 34 is a pressure-sensitive adhesive, and during the process of attaching the wireless power coil 32 and the magnet unit 33 to the shielding layer 31, the pressure-sensitive adhesive can be activated by applying pressure, so that the main body portion 3 has a better adhesion effect.

It should be understood that the main body portion 3 may be assembled or may be provided directly from the outside, and the present application is not limited thereto.

Step S400, assembling the first part and the main body part.

The first spacer 13 to which the induction coil 11 and the coil fixing device 12 are attached is attached with the side having the induction coil 11 facing the body portion 3, so that the coil fixing device 12 is attached between the wireless power coil 32 and the magnet unit 33, and the coil fixing device 12 and the shield layer 31 are fixed by the first adhesive 34. That is, at this time, the side of the coil fixing device 12 in which the induction coil 11 is embedded is away from the body portion 3.

Further, in this embodiment, since the first spacer 13 is made of a transparent material, in this step, the centers of the induction coil 11 and the coil fixing device 12 can be corresponding to the centers of the wireless power coil 32 and the magnet unit 33 by using an optical method, so as to reduce the generation of errors, and enable the coil structure to achieve a better wireless power transmission effect.

And step S500, tearing off the first gasket.

Fig. 17 is a flowchart illustrating step S500 in the assembling method of the coil structure according to the embodiment of the present invention. As shown in fig. 17, the step S500 further includes the following steps S510 and S520:

step S510, the first pad is irradiated with UV light.

In this embodiment, the third adhesive 14 is a UV adhesive. That is, depending on the nature of the UV glue, it is necessary to irradiate the third adhesive 14 with UV light in order to release it. In the last step of assembling the first part 1 and the main body part 3, since the first gasket 13 has the surface of the induction coil 11 facing the shielding plate, the first gasket 13 covers the product, and since the first gasket 13 is made of a transparent material, the whole product is irradiated by UV light, so that the UV light passes through the first gasket 13 and acts on the third adhesive 14, thereby generating the effect of adhesive release. Alternatively, the third adhesive 14 may be other adhesives.

Step S520, the first pad is separated from the induction coil and the coil fixing device.

After the third adhesive 14 is released, the first pad 13 is removed.

Further, in the embodiment, the outlet end of the induction coil 11 is also attached to the fixing portion 131 by an adhesive, and a pressure sensitive adhesive having different properties from the UV adhesive is used, so as to avoid unnecessary residue in the process of releasing the third adhesive 14. Alternatively, the adhesive of the fixing portion 131 may be other adhesives.

Step S600, assembling the second part and the main body part

The surface of the second part 2 having the electronic shielding film 21 is directed to the main body part 3, so that the electronic shielding film 21 covers the wireless power coil 32 and the induction coil 11, and the electronic shielding film 21 is adhered to the magnet unit 33 by the second adhesive 22.

Further, in the present embodiment, the second adhesive 22 is a pressure-sensitive adhesive, which can be pressed during the process of attaching the electronic shielding film 21 to the magnet unit 33 to activate the pressure-sensitive adhesive, so that the electronic shielding film has a better adhesion effect with the main body portion 3.

And S700, tearing off the second gasket.

Since the second pad 23 is made of polyester resin, it has good peeling property, so that the second pad 23 can be directly removed after the pressure sensitive adhesive is activated by pressing the element in the previous step.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A coil structure, comprising:

the wireless power supply comprises a main body part (3) and a power supply part, wherein the main body part comprises a shielding layer (31), a wireless power coil (32) and a magnet unit (33), the magnet unit (33) is arranged around the wireless power coil (32), and the wireless power coil (32) and the magnet unit (33) are attached to the shielding layer (31);

a first portion (1) including an induction coil (11) and a coil fixing device (12), the coil fixing device (12) being configured to embed the induction coil (11) to fix a position of the induction coil (11), the coil fixing device (12) being attached to the shielding layer (31) between the wireless power coil (32) and the magnet unit (33), a side of the coil fixing device (12) where the induction coil (11) is embedded being away from the body portion (3); and

a second part (2) comprising an electronic shielding film (21), the electronic shielding film (21) covering the wireless power coil (32) and the induction coil (11), the electronic shielding film (21) attached to the main body part (3).

2. The coil structure according to claim 1, wherein the wireless power coil (32), the magnet unit (33) and the coil fixing means (12) are attached to the shielding layer (31) by a first adhesive (34);

the electronic shielding film (21) is attached to the main body portion (3) through second adhesive (22), the second adhesive (22) is arranged at the edge of the electronic shielding film (21), and the second adhesive (22) is spaced from each other.

3. The coil structure according to claim 1, wherein the outlet end of the wireless power coil (32) has a relief portion (321), and the relief portion (321) is formed in a shape curved in a vertical direction to relief the induction coil (11).

4. The coil structure according to claim 1, wherein the shielding layer (31) has an outgoing portion (311), the outgoing portion (311) is located at an edge of the shielding layer (31) to expose outgoing ends of the wireless power coil (32) and the induction coil (11);

the magnet units (33) are arranged on both sides of the outgoing portion (311) to form a circular arc surrounding the wireless power coil (32) so as to avoid the outgoing portion (311).

5. A coil structure according to claim 1, characterized in that the coil fixture (12) has a coil slot (121), the coil slot (121) being configured for embedding the induction coil (11) for fixing the position of the induction coil (11);

the coil fixing device (12) is provided with a notch which avoids the outlet end of the induction coil (11).

6. The coil structure according to claim 2, wherein the first adhesive (34) and the second adhesive (22) are pressure sensitive adhesives;

the coil fixing device (12) is made of PC plastic.

7. A method of assembling a coil structure, comprising:

providing a first part (1), the first part (1) comprising an induction coil (11) affixed to a first pad (13) and a coil fixture (12), the coil fixture (12) being configured for embedding the induction coil (11) for fixing the position of the induction coil (11);

providing a second part (2), the second part (2) comprising an electron shielding film (21) attached to a second spacer (23);

providing a body part (3), wherein the body part (3) comprises a wireless power coil (32) attached to a shielding layer (31) and a magnet unit (33) surrounding the wireless power coil (32);

assembling the first part (1) and the body part (3) such that the coil fixing means (12) is attached to the shielding layer (31) between the wireless power coil (32) and the magnet unit (33), the side of the coil fixing means (12) embedded with the induction coil (11) being away from the body part (3);

-tearing off said first pad (13);

-assembling the second part (2) with the body part (3) such that the electronic shielding film (21) covers the radio energy coil (32) and the induction coil (11); and

-tearing off said second pad (23).

8. The method of assembling a coil structure according to claim 7, wherein the first part (1) is assembled in a manner comprising:

-attaching the induction coil (11) to the first pad (13); and

-mounting the coil fixing means (12) to the induction coil (11);

wherein the first gasket (13) is provided with a third adhesive (14) corresponding to the induction coil (11).

9. The method of assembling a coil structure according to claim 8, wherein the first pad (13) has a fixing portion (131), the fixing portion (131) being provided at one end of the first pad (13), the fixing portion (131) being configured to fix an outlet end of the induction coil (11).

10. A method of assembling a coil structure according to claim 7, wherein the second part (2) is assembled in a manner comprising:

attaching the electron shielding film (21) to the second spacer (23);

the second gasket (23) is provided with second adhesive (22), the position of the second adhesive (22) corresponds to the edge of the electronic shielding film (21), and a plurality of second adhesives (22) are spaced from each other.

11. A method of assembling a coil structure according to claim 10, wherein the main body part (3) is assembled in a manner comprising:

attaching the magnet unit (33) to the shield layer (31);

attaching the wireless power coil (32) to the shielding layer (31);

wherein the shielding layer (31) is provided with a first adhesive (34).

12. Method for assembling a coil structure according to claim 8, wherein said third glue (14) is a UV glue, said tearing off said first pad (13) comprising:

-irradiating the first pad (13) with UV light;

separating the first spacer (13) from the induction coil (11) and the coil fixture (12).

13. The method of assembling a coil structure according to claim 11, wherein the first spacer (13) and the second spacer (23) are made of a transparent material.

14. The method of claim 13, wherein the first adhesive (34) and the second adhesive (22) are pressure sensitive adhesives;

the coil fixing device (12) is made of PC plastic;

the first gasket (13) and the second gasket (23) are made of polyester resin.