Coil structure
Abstract
A coil structure includes a substrate, a first coil, and a second coil. The substrate has a first surface and a second surface. The first coil is disposed on the first surface. The second coil is disposed on the second surface and corresponds to the first coil. The first outer end of the first coil is electrically connected to the second outer end of the second coil, and the first inner end of the first coil is electrically connected to the second inner end of the second coil. Thereby, it is possible to avoid the occurrence of high temperatures when the coil structure is used.
Term
No projected expiry on record.
- Priority and filed
- Granted
- Today
10 claims: 1 independent, 9 dependent
- 1A coil structure, comprising:a substrate having a first surface and a second surface;a first coil disposed on the first surface, the first coil having a first outer end and a first inner end;And a second coil is disposed on the second surface, and corresponding to the first coil, the second coil has a second outer end and a second inner end, the first outer end and the second outer The first inner end is electrically connected to the second inner end. M435696 六、申請專利範圍： 1. 一種線圈結構，包括： 一基板，具有一第一表面及一第二表面； 一第一線圈，係設置於該第-表面，該第—線圈具有 一外端及一第一内端；以及 …1二，_’係設置於鮮二表面，且對應於該第一線 圈’該第二線圈具有一第二外端及一第二内端，該第一外端係 與該第二外端紐連接，該第倾該第二内端電性連 接。 2. 如申請專利範圍第！項所述之線圈結構，其中，該第一外端與 該第二外端係以一外端導電通孔電性連接，該第一内端與該第 二内端係以一内端導電通孔電性連接。 3. 如申請專利範咖項所述之線圈結構，其中，該第—線圈及 該第二線圈係以相同方向螺旋配置。 4. =請專利範圍第！項所述之線圈結構，其中，該第一線圈及 該第二線圈之線寬為1〜1.5 mm。 5·如：請專利範圍第i項所述之線圈結構，其中，該第一線圈及 該第二線圈之線距為0.2〜0.5 mm。 6.如申請專利範圍第丄項所述之線圈結構，其中，該第_線圈及 該第二線圈之厚度為0.017〜0.035 mm。 7·如申請專利範圍第1項所述之線圈結構，其中，該線圈結構還 包括複數個線圈導電通孔，係散佈配置於該第一線圈及該第二 9 M435696 線圈之間之該基板，該些線圈導電通孔係導通該第一線圈及該 第二線圈。 8. 如申請專利範圍第1項所述之線圈結構，其中，該基板之厚度 係小於0.1 mm。 9. 如申請專利範圍第1項所述之線圈結構，其中，該基板係以一 聚合物材料製成。 10. 如申請專利範圍第9項所述之線圈結構，其中，該聚合物材料 係一可撓的聚合物材料。 一種線圈結構，包括：一基板，具有一第一表面及一第二表面；一第一線圈，係設置於該第一表面，該第一線圈具有一第一外端及一第一內端；以及一第二線圈，係設置於該第二表面，且對應於該第一線圈，該第二線圈具有一第二外端及一第二內端，該第一外端係與該第二外端電性連接，該第一內端係與該第二內端電性連接。
20 paragraphs, as filed
Coil structure
The present invention relates to a coil structure, and more particularly to a thin coil structure.
In recent years, portable electronic devices have become increasingly popular, and related products have continued to develop. Among them, many portable electronic devices have the function of wireless transmission. What's more, these portable electronic devices can also have the function of wireless charging. In order to realize that the portable electronic device can have the above functions, an electrical signal or a magnetic signal is often applied to the coil component as an antenna for wireless transmission, or as an element for current magnetic effect in wireless charging.
Among such coil elements, coils and ferromagnetic materials are usually provided. Among them, the coil is wound with a ferromagnetic material as an axis. However, the thickness of the ferromagnetic material tends to exceed 3 mm, resulting in a coil element using a ferromagnetic material having a thickness exceeding 3 mm, and the weight of the ferromagnetic material is generally not easily lightweight. These physical characteristics can cause great design difficulties for portable electronic devices that are short and light. Therefore, research on a thin and short coil structure has become a subject of research in related fields.
In view of the above problems, the present invention provides a coil structure in which a thin coil structure is formed by providing thin coils on both sides of a thin substrate.
The present invention provides a coil structure including a substrate, a first coil, and a second coil. The substrate has a first surface and a second surface. The first coil is disposed on the first surface. The second coil is disposed on the second surface and corresponds to the first coil. The first coil has a first outer end and a first inner end, and the second coil has a second outer end and a second inner end. The first outer end is electrically connected to the second outer end, and the first inner end is electrically connected to the second inner end. The first outer end and the second outer end serve as an electrode of the coil structure, and the first inner end and the second inner end serve as the other electrode of the coil structure.
According to the coil structure of the present invention, the arrangement of the ferromagnetic material is avoided by providing the first coil and the second coil on the first surface and the second surface of the substrate, respectively. And electrically connecting the first outer end and the second outer end, and electrically connecting the first inner end and the second inner end, reducing the equivalent resistance of the first coil and the second coil, and avoiding excessive temperature rise of the coil structure .
The above description of the present invention and the following description of the embodiments are intended to illustrate and explain the spirit and principles of the present invention, and to provide further explanation of the scope of the present patent application.
The detailed features and advantages of the present invention are described in detail in the following detailed description of the embodiments of the present invention. Any related art and related art can easily understand the related purposes and advantages of the present invention. The following examples are intended to describe the present invention in further detail, but do not limit the scope of the present invention in any way.
Referring to FIG. 1, a perspective exploded view of a coil structure 10 in accordance with an embodiment of the present invention is illustrated. The coil structure 10 of the present invention includes a substrate 100, a first coil 110, and a second coil 120. The substrate 100 has a first surface 101 and a second surface 102. The first coil 110 is disposed on the first surface 101. The second coil 120 is disposed on the second surface 102 and corresponds to the first coil 110. The first coil 110 has a first outer end 111 and a first inner end 112. The second coil 120 has a second outer end 121 and a second inner end 122. The first outer end 111 is electrically connected to the second outer end 121 , and the first inner end 112 is electrically connected to the second inner end 122 . The first outer end 111 and the second outer end 121 can be used as one of the electrodes of the coil structure 10. The first inner end 112 and the second inner end 122 can serve as the other electrode of the coil structure 10.
The first coil 110 and the second coil 120 can be spirally arranged in the same direction. In this embodiment, the first coil 110 and the second coil 120 are respectively spirally arranged by the first inner end 112 and the second inner end 122 in a clockwise direction toward the first outer end 111 and the second outer end 121. In the present embodiment, the first coil 110 and the second coil 120 are respectively disposed on the first surface 101 and the second surface 102 of the substrate 100, for example, in a printed circuit board, but are not limited thereto. In other embodiments, the first coil 110 and the second coil 120 can be disposed on the first surface 101 and the second surface 102 of the substrate 100 by adhesion.
In order to be used in portable products, the size of the coil must be specially designed. Therefore, in one embodiment, the line width of the first coil 110 and the second coil 120 can be designed to be 1 to 1.5 mm, and the line spacing of the first coil 110 and the second coil 120 can be designed to be 0.2 to 0.5 mm. The thickness of the 110 and the second coil 120 can be designed to be 0.017 to 0.035 mm. In this embodiment, the line width of the first coil 110 and the second coil 120 is about 1 mm, the line spacing of the first coil 110 and the second coil 120 is about 0.3 mm, and the first coil 110 and the second coil 120 are The thickness can be approximately 0.02 mm. The thickness of the substrate 100 is less than 0.1 mm. In the present embodiment, the substrate 100 can be made of an insulating material. Among them, the insulating material can be a polymer material. Moreover, the polymeric material can also be thinned to a flexible polymeric material. The flexible polymeric material can be, for example, Polyimide (PI).
Referring to FIGS. 2 and 3, a first perspective view and a second perspective view of the coil structure 10 in accordance with an embodiment of the present invention are respectively illustrated. The first perspective view can represent the first surface 101 of the substrate 100, and the second perspective view can represent the second surface 102 of the substrate 100. In this embodiment, the first outer end 111 is electrically connected to the outer conductive via 131 of the second outer end 121 , and the first inner end 112 and the second inner end 122 are electrically connected to the inner conductive via 132 . The coil structure 10 further includes a plurality of coil conductive vias 1401 - 1413. The coil conductive vias 1401 - 1413 can randomly spread the substrate 100 disposed between the first coil 110 and the second coil 120. The coil conductive vias 1401 to 1413 can pass through the substrate 100 and conduct the first coil 110 and the second coil 120.
The coil structure 10 can be placed in a wirelessly transmitted circuit for use as a coil for receiving and transmitting signals. The coil structure 10 can also be placed in a wireless charging circuit and used as a coil that produces a current magnetic effect. In general, coil structures typically generate a little heat when using a coil structure. However, when the outer-side conductive via 131 is used as one of the electrodes of the coil structure 10 and the inner-side conductive via 132 is used as the other electrode of the coil structure 10, the coil structure 10 is used because of the outer conductive via 131 and the inner end. The end conductive vias 132 and the coil conductive vias 1401 to 1413 partially turn on the first coil 110 and the second coil 120, so that the temperature of the coil structure 10 does not rise excessively.
In summary, the present invention makes the coil structure thin and flexible by avoiding the ferromagnetic material by providing thin first coils and second coils on the first and second surfaces of the thin flexible substrate, respectively. Settings. In addition, the first coil and the second coil are partially turned on by the outer conductive via, the inner conductive via and the coil conductive via, so that the temperature of the coil structure does not rise excessively, and the flexible substrate can be prevented from being affected. Damaged by high temperatures.
Although the present invention has been disclosed above in the foregoing embodiments, it is not intended to limit the present invention. The changes and refinements of the present invention are within the scope of the patent protection of the present invention without departing from the spirit and scope of the present invention. Please refer to the attached patent application for the scope of protection defined by this new model.
<p>10. . . Coil structure</p><p>100. . . Substrate</p><p>101. . . First surface</p><p>102. . . Second surface</p><p>110. . . First coil</p><p>111. . . First outer end</p><p>112. . . First inner end</p><p>120. . . Second coil</p><p>121. . . Second outer end</p><p>122. . . Second inner end</p><p>131. . . Outer conductive via</p><p>132. . . Inner conductive via</p><p>1401~1413. . . Coil conductive via</p>
1 is a perspective exploded view of a coil structure in accordance with an embodiment of the present invention.
2 is a first perspective view of a coil structure in accordance with an embodiment of the present invention.
3 is a perspective view of a second perspective view of a coil structure in accordance with an embodiment of the present invention.
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| US9543651B2 | Cited by | United States of America | Applicant |
| TWI556537B | Cited by | Taiwan Province of China | Examiner |
| US9620985B2 | Cited by | United States of America | Applicant |
2 priority claims, no other members on record
Priority claims2
| Document | Office | Kind | Date |
|---|---|---|---|
| 101205643 | Taiwan Province of China | U | |
| TW20120205643U | – | – | – |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Annulment or lapse of a utility model due to non-payment of feesLapsedMM4K | MM4K |
Numbers
- Publication
- M435696
- Publication, DOCDB
- M435696
- Publication, EPODOC
- TWM435696U
- Application
- 101205643
- Application, DOCDB
- 101205643
- Application, EPODOC
- TW20120205643U
Titles2
- English
- Coil structure
- Chinese
- ????