Patent Application
20180040947
1. Field of the Invention The present invention relates to an integrated circuit (IC) inductor, and more particularly to an IC inductor including a space for receiving the other electrical parts or elements and for allowing the volume of the circuit board and the electrical facility to be suitably decreased.
2. Description of the Prior Art
Various kinds of typical inductors have been frequently formed in integrated circuits, and normally comprise a conductive coil formed around a core, and the core may be selected from an insulator or a magnetic core. Magnetic cores result in greater inductance values but are impractical to form in many types of integrated circuit. The inductance value is greatly affected by the number of turns of the coil, where the inductance value is proportional to the square of the number of turns of the coil.
For example, U.S. Pat. No. 5,610,433 to Merrill et al., U.S. Pat. No. 6,833,603 to Park et al., U.S. Pat. No. 7,564,319 to Ding et al., and U.S. Pat. No. 9,214,269 to Samala et al. disclose several of the typical inductors each also comprising a conductive coil formed around a core.
However, normally, the typical inductors have no other spaces or chambers available for receiving the other electrical parts or elements such that the volume of the circuit board and the electrical facility may not be suitably decreased.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional integrated circuit (IC) inductors.
The primary objective of the present invention is to provide an IC inductor including a space for receiving the other electrical parts or elements and for allowing the volume of the circuit board and the electrical facility to be suitably decreased.
In accordance with one aspect of the invention, there is provided an IC inductor comprising a housing including a chamber formed therein, and including a first leg and a second leg, a first conductor attached to the first leg of the housing, a second conductor attached to the second leg of the housing, and an antenna device received and engaged in the chamber of the housing, and the antenna device including a first conductive extension engaged in the first leg of the housing and electrically connected to the first conductor, and a second conductive extension engaged in the second leg of the housing and electrically connected to the second conductor. The other electrical parts or elements may be received and disposed between the legs of the housing for allowing the volume of the circuit board and the electrical facility to be suitably decreased.
The housing includes a space formed therein and communicating with the chamber of the housing for defining the first and the second legs and for receiving the other electrical parts or elements and for allowing the volume of the circuit board and the electrical facility to be suitably decreased. The antenna device includes a first coil and a second coil received and engaged in the chamber of the housing, the first conductive extension is extended from the first coil, and the second conductive extension is extended from the second coil.
The first coil includes one or more folds, and includes one or more gaps formed therein. The second coil includes a slot formed therein. The antenna device includes at least one additional coil disposed and engaged between the first and the second coils. The additional coil is preferably parallel to the first and the second coils. The additional coil includes at least one fold. The additional coil includes a gap formed therein.
Further objectives and advantages of the present invention will become apparent from a careful reading of the detailed description provided hereinbelow, with appropriate reference to the accompanying drawings.
Referring to the drawings, and initially to
As shown in
The antenna device 3 includes a first layer or coil 30 received or engaged in the chamber 11 of the housing 10, a first conductive link or extension 31 extended from the first coil 30 and received or engaged in the first leg 13 of the housing 10, and electrically connected or coupled to the first conductor 15, and the first coil 30 includes a number of bent portions or folds 32 and a gap 33 formed therein, a second layer or coil 34 is also received or engaged in the chamber 11 of the housing 10, a second conductive link or extension 35 extended from the second coil 34 and received or engaged in the second leg 14 of the housing 10, and electrically connected or coupled to the second conductor 16, and the second coil 34 includes a gap or slot 36 formed therein.
The antenna device 3 further includes one or more (such as two) additional layers or coils 37 also received or engaged in the chamber 11 of the housing 10, and disposed or engaged between the first and the second coils 30, 34 and substantially parallel to the first and the second coils 30, 34, and the additional coils 37 each may also include a number of bent portions or folds 38 and a gap 39 formed therein. The electrically connecting or coupling of the first and the second coils 30, 34 with the additional coils 37 is typical and is not related to the present invention and will not be described in further details.
In operation, as shown in
Accordingly, the IC inductor in accordance with the present invention includes a space for receiving the other electrical parts or elements and for allowing the volume of the circuit board and the electrical facility to be suitably decreased.
Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made by way of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.
