News Column

Researchers Submit Patent Application, "Coil Component and Display Device Including the Same", for Approval

July 3, 2014



By a News Reporter-Staff News Editor at Politics & Government Week -- From Washington, D.C., VerticalNews journalists report that a patent application by the inventors NAM, Ki Hung (Suwon, KR); AN, Duck Jin (Suwon, KR); KWON, Soon Young (Suwon, KR), filed on February 19, 2013, was made available online on June 19, 2014.

The patent's assignee is Samsung Electro-mechanics Co., Ltd.

News editors obtained the following quote from the background information supplied by the inventors: "The present invention relates to a coil component, and more particularly, a coil component capable of being mounted in a narrow mounting space and a display device including the same.

"Various kinds of power supplies are required in various electronic devices such as a television (TV), a monitor, a personal computer (PC), an office automation (OA) device, and the like. Therefore, these electronic devices generally include a power supply and an adaptor converting externally-supplied alternating current (AC) power into power required for each electronic appliance.

"Among the power supplies, a power supply using a switching mode (for example, a switch mode power supply (SMPS)) has recently been mainly used. This SMPS basically includes a switching transformer.

"Generally, in a switching transformer, a core and a bobbin may have a significantly reduced size as compared to the case of a general transformer. In addition, a switching transformer may stably support the supply of low voltage and low current direct current (DC) power to the electronic appliance. Therefore, switching transformers have been widely used in electronic appliances that have tended to be miniaturized.

"However, electronic devices have recently been miniaturized and therefore, adaptors and power supplies have also been manufactured to be compact. Therefore, a space in which electronic components are mounted has also been narrowed. Therefore, a switching transformer having a small size or a narrow width is required.

"In addition, a switching transformer according to the related art generally has a tolerance in order to allow a core and a bobbin to be easily assembled. Due to this tolerance, even when the core is coupled to the bobbin, motion may be generated in the core. Therefore, different degrees of leakage inductance may be generated in the same product."

As a supplement to the background information on this patent application, VerticalNews correspondents also obtained the inventors' summary information for this patent application: "An aspect of the present invention provides a coil component capable of being mounted in a narrow mounting space and a display device including the same.

"Another aspect of the present invention provides a coil component capable of fixing a movement of a core coupled to a bobbin and a display device including the same.

"According to an aspect of the present invention, there is provided a coil component, including: a bobbin including a cylindrical body part having a plurality of coils wound on an outer peripheral surface thereof, flange parts formed at both ends of the body part, and at least one or more core support parts protruded from outer surfaces of the flange parts; and a core coupled to the bobbin and seated on and fixed to the core support part.

"The core may include: a first leg inserted into a through-hole of the body part; a second leg disposed outside the body part; and a connection part connecting the first leg and the second leg.

"The second leg may be formed to have a width wider than that of the first leg.

"The connection part may have a width increased in a direction toward the second leg.

"The second leg may be disposed above an upper portion of the bobbin.

"The second leg may be disposed to entirely cover the upper portion of the bobbin.

"The second leg may have a concave inner surface, corresponding to a shape of the bobbin facing the second leg.

"The core support parts may be respectively disposed on both sides of the body part based on the body part.

"The core support parts may include a supporting surface formed to be inclined to contact and support the core.

"The core support parts may guide the core to be disposed at a center of the through-hole using gravity.

"The core support part may support a portion of the core exposed outwardly of the body part.

"The body part may have an oval cross-sectional shape elongated in a vertical direction.

"The bobbin may include a terminal connection part extended from the flange part.

"The core may be configured as a pair of U-shaped cores.

"The core may be coupled to the bobbin so as to be spaced apart from an inner surface of the cylindrical body part.

"The bobbin may include at least one or more partition walls partitioning a space in which the coil is wound into a plurality of spaces in a length direction of the body part.

"According to another aspect of the present invention, there is provided a coil component, including: a bobbin including a cylindrical body part having a plurality of coils wound on an outer peripheral surface thereof; and a core having a first leg inserted into the body part, wherein the first leg is disposed to be spaced apart from an inner surface of the body part.

"According to another aspect of the present invention, there is provided a coil component, including: a core; and a bobbin including a cylindrical body part having a plurality of coils wound on an outer peripheral surface thereof and having the core inserted thereinto and a core support part supporting the core outside the body part, wherein a movement of the core is fixed in a horizontal direction and in a downward direction by the core support part.

"According to another aspect of the present invention, there is provided a display device, including: a power supply having the at least one coil component as described above mounted on a substrate; and a display panel receiving power from the power supply.

BRIEF DESCRIPTION OF THE DRAWINGS

"The above and other aspects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

"FIG. 1 is a perspective view schematically showing a coil component according to an embodiment of the present invention;

"FIG. 2 is an exploded perspective view of FIG. 1;

"FIG. 3 is a side view of the coil component of FIG. 1;

"FIGS. 4 and 5 are side views of a bobbin of FIG. 2;

"FIG. 6 is a view illustrating a coil component according to an embodiment of the present invention;

"FIG. 7 is a view showing a bobbin according to another embodiment of the present invention; and

"FIG. 8 is an exploded perspective view schematically showing a display device according to an embodiment of the present invention."

For additional information on this patent application, see: NAM, Ki Hung; AN, Duck Jin; KWON, Soon Young. Coil Component and Display Device Including the Same. Filed February 19, 2013 and posted June 19, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=4606&p=93&f=G&l=50&d=PG01&S1=20140612.PD.&OS=PD/20140612&RS=PD/20140612

Keywords for this news article include: Samsung Electro-mechanics Co. Ltd.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Politics & Government Week


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