TW201310846A - Surface structure of wireless power inductor plate and inductor plate manufacture process - Google Patents

Abstract

The present invention provides a surface structure of wireless power transmission inductor plate, which comprises: a flat iron core board having at least a surface disposed thereon a plurality of patterned trenches; at least one coil attached to the surface of the core board; and at least a protective material attached to the surface of the core board and covering the patterned trenches, so as to protect the iron core plate from being easily cracked and resolve the problem that it creates bubbles in an attaching process.

Description

Wireless power sensor board surface structure and sensor board process

The invention relates to a surface structure of a wireless power transmission induction board, in particular to a problem of solving the generation of air bubbles on the surface of a core board at the transmission end of the wireless power transmission induction board.

Press, in handheld electronic devices, such as mobile phones, PDAs (personal digital assistants), palmtop computers, notebook computers or tablets, etc., all powered by batteries, so that users can use them when there is no mains. And these electronic devices are equipped with a wired power supply to facilitate battery charging or power supply using the mains.

Due to advances in technology, a new type of wireless power transmission system has been developed to transmit power using electromagnetic induction to power the handheld electronic devices or to charge their batteries. The wireless power transmission system includes a power transmission module 10 and a power receiving module 20, as shown in FIG.

The power transmission module 10 has a transmitting end coil 11 and a transmitting end core plate 12, and the coil 11 is disposed on a surface of the core board 12; and the power receiving module 20 also has a receiving end coil 21, A receiving end core plate 22 is also placed on a surface of the core plate 22.

When the power is to be transmitted wirelessly, the power receiving module 20 is brought close to the power transmission module 10, and a current flows through the transmitting end coil 11 to generate a magnetic field at the transmitting end core plate 12, and the receiving end core plate 22 senses the magnetic field. A current is generated at the receiving end coil 21.

Generally, the core plate 22 in the power transmission module 20 is pulverized and broken due to falling. Generally, the surface of the core plate is not subjected to any treatment, so if it is broken, it will be separated from the coil and affect the power induction.

To this end, the inventor of the present invention proposed a surface structure of a wireless power sensor board, which is attached with a PET tape to protect the core board from cracking. However, the surface of the core board is not a flat surface, so the PET tape is not easy to attach. On the surface of the core plate, and because of the uneven surface, the PET will cause bubbles between the attached surfaces after being attached. Therefore, the inventor of the present invention first performs patterned groove treatment on the surface of the core plate to facilitate the elimination of bubbles, and can make PET The tape is completely attached to the surface of the core plate.

The object of the present invention is to provide a surface structure of a wireless power transmission induction board and a process of the induction board. The core board can be attached with a protective material to protect the core board from cracking and solve the problem that air bubbles are generated during the attachment process.

The main technical feature of the present invention is to provide a wireless power transmission sensing board surface structure, the sensing board includes at least: a core plate having a flat shape, at least one surface of which is disposed with a plurality of patterned grooves; at least one of the coils is centrally hollowed out a planar shape attached to the surface of the core plate; and at least one protective material attached to the surface of the core plate and covering the patterned grooves.

A second technical feature of the present invention is to provide a wireless power transmission sensing board process, which first prepares a core plate and has a flat shape; then, at least one surface of the core plate is patterned to form a plurality of patterned grooves; and then a protection is attached The material is on the surface of the core plate and covers the patterned grooves; then at least one coil is prepared; and finally the coil is attached to the surface of the core plate.

The detailed description of the present invention and the accompanying drawings are not to be construed as limiting the invention.

2 is a perspective exploded view of a wireless power transmission sensing board according to the present invention, and FIG. 3 is a combined perspective view of the second embodiment of the present invention; the wireless power transmission sensing board 30 of the present invention can be a power transmission mode. The group includes at least a core plate 31, a coil 32 and a protective material 33. The core plate 31 has a flat shape, and the coil 32 has a central hollow plane shape and is attached to the surface of the core plate 31. Preferably, the adhesive material 34 of a non-conductive material is used to adhere the coil 32 to the surface of the core plate 31. The adhesive material 34 may be a double-sided tape or an adhesive.

The area of the core plate 31 is larger than the area of the coil 32. Preferably, a plurality of coils 32 may be disposed on a core plate 31 to inductively transmit power to the plurality of sets of wireless power receiving modules. The present invention can accommodate a magnet 35 in the hollow of the center of the coil 32. The magnet 35 is also attached to the surface of the core plate 31 by the adhesive material 34. The magnet 35 can be used to magnetically transmit the other end of the wireless power transmission. Induction board. Alternatively, the present invention may also form at least one convex-shaped bump (not shown) on one surface of the core plate 31, and the convex portion may be accommodated in the hollow of the center of the coil 32.

Referring to FIG. 4, it is a side view of the core plate and the protective material of the present invention, wherein at least one surface of the core plate 31 is provided with a plurality of patterned grooves 313, preferably the patterned grooves. The surface of one of the core plates 31 may be disposed, or the patterned grooves may be disposed on both surfaces of the core plate 31, and the protective material 33 is attached to the surface of the core plate 31 and covers the patterned grooves. 313. Preferably, the protective material 33 may be a PET tape, and since the surface of the core plate 31 is originally rough, there is a convex ridge, and when the protective material 33 is attached to the surface of the core plate 31, Air bubbles are generated due to the rough surface, so that the protective material 33 is not easily attached to the surface of the core plate 31.

However, when the surface of the core plate 31 is stamped out of the patterned groove 313 by the present invention, when the protective material 33 is attached, the bubble is discharged into the groove, or the bubble is discharged by the groove, so the surface of the core plate 31 is not There is a bubble generation, and it can be firmly attached to the surface of the core plate 31 to achieve the purpose of protecting the core plate.

The patterned trench 313 of the core plate 31 may have a concave triangular shape, an arc shape or a trapezoidal shape, and the patterned trench 313 may have a horizontal strip shape as shown in FIG. 5A or FIG. Straight strips, or can be staggered in a straight strip as shown in Figure 5C.

Please refer to FIG. 6 , which is a manufacturing flowchart of the wireless power transmission sensing board of the present invention. The process of the present invention first prepares a core board 31 ( 101 ), and then performs a pattern processing on at least one surface of the core board 31 . A plurality of patterning grooves 313 (102) are formed on the surface of the core plate 31.

In the present invention, a stamping machine can be used for patterning the surface of the core plate 31. As shown in the schematic diagram of FIG. 7, a plurality of toothed jigs are provided on the machine table, and the core plate 31 is stamped by the jig. A plurality of patterning grooves 313 may be formed on the surface of the core plate 31.

Next, a protective material 33 is attached to the surface of the core plate 31 and covers the patterned trenches 313 (103). At least one coil 32 (104) is then placed, and the coil 32 is attached to the surface (105) of the core plate 31 by the adhesive material 34. Finally, at least one magnet 35 (106) is provided, and the magnet 35 is attached to the surface (107) of the core plate at the center of the coil by the adhesive material 34.

The present invention is capable of providing a design that is quite different from the prior art by the above-mentioned disclosed technology, which can improve the overall use value, and is not found in the publication or public use before the application, and has already met the requirements of the invention patent. , 提出 filed an invention patent application in accordance with the law.

10. . . Power transmission sensor module

11. . . Coil

12. . . Iron core board

20. . . Power receiving sensor module

twenty one. . . Coil

twenty two. . . Iron core board

30. . . Wireless power transmission sensor board

31. . . Iron core board

313. . . Patterned trench

32. . . Coil

33. . . Protective material

34. . . Adhesive material

35. . . magnet

Figure 1 is a schematic diagram of a conventional power transmission system;

2 is a perspective exploded view of a wireless power transmission sensing board of the present invention;

Figure 3 is a schematic perspective view of the combination of Figure 2;

Figure 4 is a side view showing the core plate and the protective material of the present invention;

5A to C are schematic views of an embodiment of a patterned groove of the present invention;

Figure 6 is a manufacturing flow chart of the wireless power transmission sensing board of the present invention; and

Figure 7 is a schematic view of the present invention using a stamping machine for patterning and processing a core sheet.

30. . . Wireless power transmission sensor board

31. . . Iron core board

313. . . Patterned trench

32. . . Coil

33. . . Protective material

34. . . Adhesive material

35. . . magnet

Claims (26)

a wireless power transmission sensing board surface structure, the sensing board includes at least: a core plate having a flat shape, at least one surface of which is provided with a plurality of patterned grooves; at least one protective material attached to the surface of the core plate, and Covering the patterned trenches; and at least one of the coils is in the form of a central hollow plane attached to the surface of the core plate. The wireless power transmission sensing board surface structure according to claim 1, wherein the patterning grooves are disposed on one surface or both sides of the core board. The surface structure of the wireless power transmission sensing board according to claim 1, wherein the patterned groove has a concave triangular shape, an arc shape or a trapezoidal shape. The surface structure of the wireless power transmission sensing board according to claim 1, wherein the patterned groove is in the form of a horizontal strip or a straight strip. The surface structure of the wireless power transmission sensing board according to claim 1, wherein the patterning grooves are in the shape of a grid of straight and straight stripes. The wireless power transmission sensing board surface structure according to claim 1, wherein the protective material is a PET tape. The surface structure of the wireless power transmission sensing board according to claim 1, further comprising an adhesive material made of a non-conductive material for adhering the coil to the surface of the core board. The surface structure of the wireless power transmission sensing board according to claim 7, wherein the adhesive material is a double-sided tape or an adhesive. The wireless power transmission sensing board surface structure according to claim 1, wherein the core board has an area larger than the coil. The wireless power transmission sensing board surface structure according to claim 1, further comprising a magnet, which is disposed at the center hollow of the coil and attached to the surface of the core board. The surface structure of the wireless power transmission sensing board according to claim 10, wherein the magnet is adhered to the surface of the core board by using an adhesive material made of a non-conductive material. The surface structure of the wireless power transmission sensing board according to claim 11, wherein the adhesive material is a double-sided tape or an adhesive. The surface structure of the wireless power transmission sensing board according to claim 1, wherein at least one of the surface of the core plate is provided with at least one convex-shaped bump, and the protruding portion is just accommodated in the center of the coil. At the office. A wireless power transmission sensing board process includes at least the following steps: preparing a core plate and forming a flat plate; patterning at least one surface of the core plate to form a plurality of patterned grooves; attaching a protective material to the surface of the core plate, and Covering the patterned trenches; preparing at least one coil in a planar shape with a central hollow; and attaching the coil to the surface of the core plate. The wireless power transmission sensing board process of claim 14, wherein the patterned trench is disposed on one surface or both sides of the core board. The wireless power transmission sensing board process of claim 14, wherein the patterned trench is in a concave triangular shape, an arc shape or a trapezoidal shape. The wireless power transmission sensing board process of claim 14, wherein the patterned trench is in the form of a horizontal strip or a straight strip. The wireless power transmission sensing board process of claim 14, wherein the patterned trenches are in the shape of a horizontally staggered square. The wireless power transmission sensing board process of claim 14, wherein the protective material is a PET tape. The wireless power transmission sensing board process of claim 14, wherein the coil is adhered to the surface of the core board by using an adhesive material made of a non-conductive material. The wireless power transmission sensor board process of claim 20, wherein the adhesive material is a double-sided tape or an adhesive. The wireless power transmission sensing board process of claim 14, wherein the core plate has an area larger than the coil. The wireless power transmission sensing board process of claim 14, wherein one of the surfaces of the core plate has a convex shape, and the protruding portion is just received at the center hollow of the coil. The wireless power transmission sensing board process of claim 14, further comprising the steps of: providing at least one magnet; attaching the magnet to the surface of the core plate at the center of the coil. The wireless power transmission sensing board process of claim 24, wherein the magnet is adhered to the surface of the core board by using an adhesive material made of a non-conductive material. The wireless power transmission sensing board process of claim 25, wherein the adhesive material is a double-sided tape or an adhesive.