KR20150120834A - Antenna apparatus, electronic component including the same and electronic device - Google Patents

Abstract

An antenna apparatus according to an embodiment of the present invention comprises: a support part and a core member having a plurality of first protruding parts arranged on one surface of the support part; and a coil part which is wound around the core member. The core member further includes a plurality of second protruding parts placed on the other surface opposite to the one surface, and each of the second protruding parts may have a cross-sectional surface provided as a mounting surface.

Description

TECHNICAL FIELD [0001] The present invention relates to an antenna device, an electronic device having the antenna device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna device, an electronic component having the antenna device, and an electronic device.

As the mobile communication field continues to evolve, the number of users who need to provide a variety of information contents or provide real-time video has increased.

Accordingly, development of technologies for high-speed data transmission and large-capacity information transmission has been continuously carried out, and in particular, it is important to develop an antenna that performs data transmission for a large-capacity information transmission desired by a user.

Meanwhile, application of Near Field Communication (NFC) technology to a portable terminal such as a smart phone, a PMP, navigation and the like enables data exchange between portable terminals, And services such as authentication are becoming available. In this case, the NF refers to a non-contact type short-range wireless communication module using a frequency band of approximately 13.56 MHz, and a separate antenna is required to use the radio signal of the frequency band.

The conventional NEFA antenna generally uses a loop pattern and is formed in a planar shape and mounted inside a battery or a cover of a portable terminal.

However, the conventional loop-shaped NF antenna has a sufficiently long loop length in order to increase the radiation efficiency. However, since the area of the NF RF antenna is also increased, space is sufficient when the antenna is mounted in the battery or the cover I can not.

Korean Patent Publication No. 2014-0025143

The present invention provides an antenna device that can be miniaturized by being formed in the form of a chip so that a board can be mounted, electronic parts having the same, and electronic equipment.

An antenna device according to a first technical aspect of the present invention includes: a core member having a support portion and a plurality of first projections disposed on one surface of the support portion; And a coil part wound on the core member; Wherein the core member further includes a plurality of second protrusions disposed on the other surface opposite to the one surface, and the plurality of second protrusions may have a cross section provided to the mount surface.

According to a second technical aspect of the present invention, there is provided an antenna device for transmitting and receiving data by electromagnetic induction in accordance with the entry and exit of magnetic flux, the antenna device comprising: a core member having a plurality of cross sections through which the magnetic flux enters and exits; And a coil part wound on the core member; And the core member may further include at least one mounting surface for mounting on the first substrate.

An antenna device according to a third technical aspect of the present invention is an antenna device for transmitting and receiving data by electromagnetic induction in accordance with the entry and exit of a magnetic flux, the antenna device comprising a first end face in which the magnetic flux enters and exits and a second end face opposite to the first end face A second core portion having a second end face in which the magnetic flux enters and exits and a second end face opposed to the second end face, and a second core portion having a second end portion disposed between the first and second core portions, A core member including a three core portion; A coil part wound around the core member; And first and second pad portions disposed in the first and second seal portions; . ≪ / RTI >

An electronic component having an antenna device according to a fourth technical aspect of the present invention includes: a first substrate; And an antenna device disposed on the first substrate through the first and second pad portions and connected to the circuit portion; Wherein the antenna device includes a first core portion having a first mounting surface in which the first pad portion is disposed, a second core portion having a second mounting surface in which the second pad portion is disposed, A core member including a third core portion disposed between the first and second core portions; And a coil part wound on the core member; . ≪ / RTI >

An electronic device according to a fifth technical aspect of the present invention includes: an electronic device cover; An antenna device disposed inside the cover for the electronic device; And a circuit board to which the antenna device is connected; Wherein the antenna device comprises: a core member having a support portion, a plurality of first projections disposed on one surface of the support portion, and a plurality of second projections disposed on the other surface opposite to the one surface; And a coil part wound on the core member; Wherein the plurality of second protrusions have a cross section provided as a mounting scene and the antenna device can be mounted on the first substrate through a plurality of pad portions disposed in a cross section provided to the mounting scene.

The antenna device, the electronic device having the same, and the electronic device according to an embodiment of the present invention can reduce the area occupied by mounting the antenna device on the board by configuring the antenna device in a chip form.

Further, a ferrite sheet formed for eliminating eddy current under the core member is not required.

In addition, since the substrate can be mounted directly on the substrate through the pad without additional substrate mounting structure, the overall size can be reduced and mounting on the substrate can be made simpler.

1 is a perspective view of an antenna device according to an embodiment of the present invention.
2 is a perspective view showing the antenna device shown in Fig. 1 at different angles.
3A and 3B are views showing an antenna device mounted on a first substrate according to an embodiment of the present invention.
FIG. 4A is a view showing a first molding part added to the antenna device mounted on the first substrate shown in FIG. 3A.
FIG. 4B is a view showing a second molding part added to the antenna device mounted on the first substrate shown in FIG. 3A.
5 is a view for explaining lengths and heights of respective components in an antenna device according to an embodiment of the present invention.
6A and 6B are views showing another embodiment of the position where the coil is wound in the antenna device according to the embodiment of the present invention.
Figs. 7A to 7C are views showing embodiments of a plurality of first protrusions in the configuration of the antenna device shown in Fig. 1. Fig.
8A is an exploded view of a case where a coil is wound on a plurality of first projections in an antenna device according to an embodiment of the present invention.
8B is a view showing a case where a coil is wound on a plurality of first projections in an antenna device according to another embodiment of the present invention.
9 is a view showing a direction of magnetic flux in an antenna device according to an embodiment of the present invention.
10A and 10B are perspective views of an antenna device according to another embodiment of the present invention.
11 is a view showing first and second virtual lines in an antenna device according to another embodiment of the present invention.
12A to 12D are views showing an antenna device and electronic parts having the antenna device according to another embodiment of the present invention.
13A and 13B are diagrams illustrating the direction of magnetic flux according to the winding position of the coil part in the antenna device according to the embodiment of the present invention.
14 is an exploded perspective view of an electronic device according to another embodiment of the present invention.

It is to be understood that the invention is not to be limited to the disclosed embodiments, but is capable of numerous modifications, all without departing from the spirit and scope of the invention.

In addition, in the embodiments of the present invention, the structures, shapes and numerical values described as one example are merely examples for helping understanding the technical matters of the present invention, and thus the present invention is not limited thereto. But can be changed in various ways.

The embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals will be used throughout the drawings to refer to the same or like parts.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

Further, an antenna device and an electronic device having the antenna device according to an embodiment of the present invention will be described with reference to an NFC antenna device, but the present invention is not limited thereto.

Antenna device and electronic parts having same

1 is a perspective view of an antenna device according to an embodiment of the present invention.

Referring to FIG. 1, an antenna device according to an embodiment of the present invention may include a core member 100 and a coil portion 200 wound around the core member 100.

The coil portion 200 may be wound on at least one of the support portion 110 of the core member 100 or the plurality of first projections 120. For convenience of explanation, the coil portion 200a wound on the support portion 110 is referred to as 200a (See Fig. 1), a coil part wound on a plurality of first protrusions 120 will be described as 200b (see Fig. 5A). A common content applied to both 200a and 200b is 200 .

The core member 100 may include a support 110, a plurality of first protrusions 120, and a plurality of second protrusions 130.

The supporting portion 110 may have a polygonal or circular cross-section so that the antenna device can be mounted on the first substrate 400 (see FIG. 3A) to achieve miniaturization. Referring to FIG. 1, the support 110 may have a hexahedral shape. When the direction of the hexahedron is defined to clearly explain the core member 100 according to an embodiment of the present invention, , W and T denote the longitudinal direction, the width direction and the thickness direction, respectively.

The plurality of first protrusions 120 may be disposed on one side of the support 110. At this time, the plurality of second protrusions 130 may be disposed on the other surface opposite to one surface of the supporter 110.

Hereinafter, the surface on which the plurality of first protrusions 120 are disposed is defined as one surface of the supporter 110, and the surface on which the plurality of second protrusions 130 are disposed is defined as the surface opposite to the one surface.

For example, the plurality of first protrusions 120 may be two first protrusions 120a and 120b, and each of the two first protrusions 120a and 120b may be formed at both ends in the longitudinal direction of the supporter 110 The support 110 may be provided on one side of the support 110.

However, the plurality of first protrusions 120 are not limited to the above-described positions, and may be formed at various positions as long as they allow the magnetic flux to enter and exit. Meanwhile, the longitudinal direction of the support portion 110 means a direction in which the longest one of the corners of the support portion 110 is formed.

The plurality of second protrusions 130 may be two second protrusions 130a and 130b and the two second protrusions 130a and 130b may be formed on both sides in the longitudinal direction of the supporter 110 And may be disposed on the opposite surface.

The plurality of second protrusions 130 are not limited to the above-described positions, and the core member 100 may be bonded to the first and second substrates 400 and 400 through the first and second pad portions 310 and 320 (see FIG. 3A) (See Fig. 3A), it is not limited to a specific position as long as it has a mounting scene. The plurality of second protrusions 130 having a plurality of mounting surfaces will be described with reference to FIG.

For example, the plurality of first protrusions 120 and the plurality of second protrusions 130 may be formed on one surface of the supporter 110 and on the other surface opposite to the one surface, have. Accordingly, the plurality of first protrusions 120 and the plurality of protrusions 130 may be disposed on the same line with respect to the supporter 110.

Further, the plurality of first protrusions 120 and the plurality of second protrusions 130 may be generally columnar (see FIG. 1), but are not limited thereto.

Meanwhile, in the configuration of the antenna device according to the embodiment of the present invention, each of the plurality of first and second protrusions 120 and 130 has two protrusions, The number of the first and second protrusions 120 and 130 is not limited to two.

Referring to FIG. 1, each of the plurality of first protrusions 120 has a rectangular cross section, but is not limited thereto.

In addition, although each of the plurality of second projections 130 is shown in a rectangular shape in FIG. 1, the present invention is not limited thereto. Furthermore, the shape of each of the plurality of first protrusions 120 and the plurality of second protrusions 130 may not be the same.

The two first protrusions 120a and 120b may include two end faces 121a and 121b, respectively, through which a magnetic flux enters and exits. For example, if the magnetic flux is emitted from the end face 121a of the first protrusion 120a, the magnetic flux may be incident on the end face 121b of the first protrusion 120b. Conversely, if the magnetic flux is incident on the end face 121a of the first protrusion 120a, the magnetic flux can be emitted from the end face 121b of the first protrusion 120b.

The core member 100 may be formed by sintering, molding or the like by mixing a material including a magnetic material such as ferrite having a predetermined permittivity and permeability with a composite material such as ceramics in order to transmit and receive a low frequency band NFs signal have.

In the configuration of the antenna device according to an embodiment of the present invention, the core member 100 may be in the 'H' shape.

More specifically, the plurality of first and second protrusions 120 and 130 may be two first and second protrusions 120a and 120b and 130a and 130b, respectively, and two first protrusions 120a and 120b May be disposed at both ends of the support portion 110 in the longitudinal direction. The two second projections 130a and 130b may be disposed on the support 110 so as to face the two first projections 120a and 120b, respectively.

Also, the volume of each of the two first protrusions 120a and 120b may be larger than the volume of each of the two second protrusions 130a and 130b. Accordingly, the antenna device according to an embodiment of the present invention can increase the efficiency of magnetic flux entrance by increasing the volume of the first protrusions 120a, 120b associated with the magnetic flux entrance and exit, .

On the other hand, if the areas of the mounting surfaces 131a and 131b of the two second projections 130a and 130b are sufficient

So that the fixing strength can be improved when the core member 100 is mounted on the first substrate 400 (Fig. 3A).

The coil portion 200a is wound on the support portion 110 (200a) to form a magnetic flux that enters and exits the core member 100. [

More specifically, the first and second protrusions 120a and 120b can be wound in the same direction to the support 110 so that magnetic flux can be incident or emitted through the two first protrusions 120a and 120b.

That is, when an external device using the NF and the antenna device according to the present invention are positioned facing each other, a magnetic path can be formed between the two devices, thereby enabling data transmission and reception through electromagnetic induction .

Referring to FIG. 1, the coil portion 200a may be wound around the support portion 110 so as to transmit and receive a 13.56 MHz band signal for the NF. The coil portion 200a may be electrically connected to a circuit portion including an NFC chip (not shown) of the first substrate 400 (see FIG. 3A).

That is, the coil portion 200a is formed so as to transmit and receive data to / from an external electronic device by electromagnetic induction formed in and out of the end faces 121a and 121b of the two first protrusions 120a and 120b, Can be wound on the support 110. At this time, the external electronic device may include an antenna capable of transmitting and receiving the same frequency band signal.

More specifically, the coil portion 200a is connected to the circuit portion including the NFC chip through the pad portions 310 and 320 attached to the mounting surfaces 131a and 131b of the plurality of second protrusions 130 As shown in FIG.

The coil portion 200a may be formed of a coated wire having an insulating coating made of polyurethane resin or polyester resin on the outer periphery of a metal wire which may be made of copper (Cu) or silver (Ag). Further, the coil portion 200a is not limited to a single wire, and may be formed of twisted wire or two or more wires.

1, the coil portion 200a may be wound so as to surround the support portion 110 in a circular shape, but the present invention is not limited thereto. The coil portion 200a may be formed in the same shape as the cross-sectional shape of the support portion 100 It may be wound.

Further, the metal wire of the coil portion 200a is not limited to having a circular cross-sectional shape, and may have a polygonal cross-sectional shape.

2 is a perspective view showing the antenna device shown in Fig. 1 at different angles.

Referring to FIG. 2, the plurality of second protrusions 130 may be, for example, two second protrusions 130a and 130b, and each of the two second protrusions 130a and 130b may include a first substrate 400, 131a and 131b provided in a mounting scene for mounting the light emitting diodes (see Fig. 4A).

The first and second pad portions 310 and 320 (see FIG. 3A) are attached to the end faces 131a and 131b included in the two second projections 130a and 130b, respectively, 400, see Fig. 3A). For example, the other surface direction of the support portion 110 where the two second projections 130a and 130b are disposed may be the direction in which the first substrate 400 (see FIG. 3A) is present.

In this case, the antenna device according to the embodiment of the present invention is not a mounting view in which all the other surfaces of the supporting portion 110 are mounted on the substrate, but a mounting surface 131a (see FIG. And 131b, as shown in FIG.

3A) by the sum of the height of the first and second pad portions 310 and 320 (see FIG. 3A) and the height of the plurality of second projections 130, As shown in FIG. Accordingly, when the coil portion 200a is wound on the support portion 110, a sufficient space for winding can be ensured and the coil portion 200a can be wound more easily.

Accordingly, since the first substrate 400 (see FIG. 3A) can be directly mounted, a sufficient space for winding the coil portion 200a can be ensured and the first substrate 400, 3A) may not require a separate facility or structure for mounting.

This will be described later with reference to FIGS. 3A and 3B.

3A and 3B are views showing an antenna device mounted on a first substrate according to an embodiment of the present invention.

Referring to FIGS. 3A and 3B, the two first protrusions 120a and 120b have end faces 121a and 121b, respectively, through which the magnetic flux enters and exits, thereby forming a magnetic path. The two second protrusions 130a and 130b have end faces 131a and 131b provided in the mounting surface so that the first and second pad portions 310 and 320 are provided with surface mount (SMT, Surface Mounter Technology).

In addition, since the core member 100 is formed in the 'H' shape as an embodiment, a magnetic flux common path can be provided to minimize the eddy current loss.

3A and 3B, the antenna device according to the embodiment of the present invention is attached to the mounting surfaces 131a and 131b (see FIG. 2) of the two second protrusions 130a and 130b And may be mounted on the first substrate 400 through the first and second pad portions 310 and 320.

The first substrate 400 may be a substrate mounted inside a portable terminal such as a smart phone and a circuit portion having an NFC chip (not shown) may be disposed on the first substrate 400 have. In addition, a plurality of active elements, passive elements, integrated circuits (ICs), and the like may be mounted on the first substrate 400, and one embodiment of the first substrate 400 may be a printed circuit board (PCB).

The antenna device according to an embodiment of the present invention may be mounted on one surface of the first substrate 400.

The first and second pad portions 310 and 320 may be spaced apart from each other to allow a surface mount device (SMT) on the first substrate 400.

At this time, the antenna device according to the present invention can be electrically connected to each other by soldering in a state where the first and second pad portions 310 and 320 are placed in contact with the first substrate 400.

FIG. 4A is a view showing a first molding part 410 in the antenna device mounted on the first substrate shown in FIG. 3A.

4A, an electronic component having an antenna device mounted on a first substrate 400 may further include a first molding part 410 disposed between two first protrusions 120a and 120b have.

The first molding part 410 may be disposed between the two first protrusions 120a and 120b so that the cross section of the first protrusions 120a and 120b may be exposed to the outside.

An example of the first molding part 410 may be an epoxy molding compound (EMC).

In FIG. 4A, the cross section of the two first protrusions 120a and 120b and the first molding part 410 are shown as being coplanar, but the present invention is not limited thereto.

FIG. 4B is a diagram showing a second molding part 420 added to the antenna device mounted on the first substrate 400 shown in FIG. 3A.

Referring to FIG. 4B, the second molding part 420 may be formed to cover the supporting part 110, the two first protrusions 120a and 120b, and the two second protrusions 130a and 130b.

Particularly, the second molding part 420 may cover both longitudinal sides of the supporting part 110 and enclose the end faces 121a and 121b of the first protrusions 120a and 120b. The second molding part 420 is formed to enclose the antenna device according to an embodiment of the present invention and thus can serve as a cover for preventing foreign substances from entering from the outside.

Meanwhile, in the antenna device according to an embodiment of the present invention, since the first molding part 410 or the second molding part 420 is formed to have a chip-like structure, miniaturization can be achieved.

5 is a view for explaining lengths and heights of respective components in an antenna device according to an embodiment of the present invention.

Referring to FIG. 5, the size of the antenna device according to an embodiment of the present invention may be 8.0 x 1.3 x 4 mm.

In more detail, the lengths t1 and t3 of the first and second protrusions 130a and 130b in the longitudinal direction may be 1.5 mm. Since the length t1 + t2 + t3 of the support portion 110 in the length direction is 8 mm, the length of the portion t2 of the support portion 110 may be 5 mm.

The height t4 of the first projections 130a and 130b may be 0.5 mm and the height t5 of the support 110 may be 0.5 mm. The height t6 of the second projections 130a and 130b may be 0.2 mm and the height t7 of the first and second pad portions 310 and 320 may be 0.1 mm. However, as long as the plurality of first protrusions 120 can form the entrance and exit of the magnetic flux, the plurality of second protrusions 130 may include a mounting surface for mounting the first protrusions 130 on the first substrate 400 , But is not limited to the above numerical values. Similarly, the support portion 110 and the first and second pad portions 310 and 320 are not limited to the above-described numerical values.

It can be seen that the area occupying an epoch-making area is reduced compared to the size of a conventional loop antenna of 40 x 30 x 0.3 mm. Accordingly, the antenna device according to the present invention can be miniaturized by having a chip-like structure.

6A and 6B are views showing another embodiment of the position where the coil is wound in the antenna device according to the embodiment of the present invention.

Referring to FIG. 6A, the coil portion 200b may be wound on the plurality of first protrusions 120. FIG.

More specifically, when the plurality of first protrusions 120 are the two first protrusions 120a and 120b, the coil portion 200b can be wound around each of the two first protrusions 120a and 120b have. At this time, the winding directions of the coils wound on the two first protrusions 120a and 120b may be the same.

The coil portion 200b may include a connection coil 200b for connecting the coils wound on the first and second protrusions 120a and 120b to each other. The coil portion 200b may be connected to the first and second pad portions 310 and 320 (see FIG. 3A) attached to the mounting surfaces 131a and 131b of the two second protrusions 130a and 130b.

The number of times that the coil portion 200b is wound on each of the first protrusions 120a and 120b may be determined according to the resonance frequency of the antenna device according to the present invention so as to transmit and receive signals in the 13.56 MHz band. Since the material and shape of the coil portion 200b are the same as those of the coil portion 200a wound on the support portion 110, description thereof will be omitted.

6B, the antenna device according to the embodiment of the present invention may be configured such that the coil portion 200 is wound on each of the plurality of first protrusions 120 and the supports 110, respectively.

The coil part 200a wound on the supporting part 110 and the coil part 200b wound on the plurality of first protrusions 120 are all mounted on the mounting surfaces 131a and 131b of the two second protrusions 130a and 130b And the first and second pad portions 310 and 320 (see FIG. 3A).

Since the material and the shape of the coil parts 200a and 200b are the same as those described above, the description thereof will be omitted.

Figs. 7A to 7C are views showing embodiments of a plurality of first protrusions in the configuration of the antenna device shown in Fig. 1. Fig.

Referring to FIGS. 7A and 7B, two first protrusions 120a and 120b of the antenna device according to the embodiment of the present invention may have a slope on each end face 121a and 121b.

At this time, the angles of the slopes of the two end faces 121a and 121b may not be equal to each other. Further, the inclined surfaces of each of the two end faces 121a and 121b may be formed to be opposite to each other (see Fig. 7A) or may be formed in a direction facing each other (see Fig. 7B).

Furthermore, referring to FIG. 7C, only one of the end faces 121a and 121b of the first protrusions 120a and 120b may be inclined.

That is, referring to Figs. 7A to 7C, the direction or inclination angle of the slopes of the two end faces 121a and 121b may be different, and the direction of the magnetic flux entering and exiting from the two end faces 121a and 121b, The form of this can be changed.

The embodiment of the core member 100 is not limited to the form shown in the drawings and may be formed to a width, height or size such that the coil portion 200a can be sufficiently wound around the core member 100. [

For example, it is necessary that the distance between the two first projections 120a and 120b and the distance between the two second projections 130a and 130b in the configuration of the core member 100 are necessarily the same And may be configured to have different values.

Also, the volume of each of the two first protrusions 120a and 120b may be larger than the volume of each of the two second protrusions 130a and 130b. Accordingly, the antenna device according to an embodiment of the present invention can increase the efficiency of magnetic flux entrance by increasing the volume of the first protrusions 120a, 120b associated with the magnetic flux entrance and exit, .

On the other hand, the area of the mounting surfaces 131a and 131b of the two second protrusions 130a and 130b can be increased. Accordingly, when the core member 100 is mounted on the first substrate 400 (Fig. 3A), the bonding strength can be improved.

That is, in the antenna device according to the embodiment of the present invention, the core member 100 has a cross section of a plurality of first protrusions 120 through which magnetic flux enters and exits toward the air side, 3A to 3C), the present invention is not limited to the structure shown in Figs. 1 to 7 as long as it is a structure including a plurality of second protrusions 130 having a mounting surface for mounting the first protrusions.

8A is an exploded view of a case where a coil portion 200b is wound on a plurality of first protrusions 120 in an antenna device according to an embodiment of the present invention.

8A, an antenna device according to an embodiment of the present invention may include a plurality of first protrusions 120 wound around a coil portion 200b.

More specifically, when the plurality of first protrusions 120 are the two first protrusions 120a and 120b, the coil portion 200b can be wound around each of the two first protrusions 120a and 120b have.

The antenna device according to an embodiment of the present invention may further include a second substrate 220 having a cavity. The coil portion 200b may be located in the cavity of the second substrate 220. [

More specifically, referring to the plane A-A ', a coil portion 200b may be formed to surround the cavity of the second substrate 220. In the cavity, two first protrusions 120a, The second substrate 220 and the core member 100 where the coil portion 200b is positioned can be coupled to each other.

The cavity shape and size of the second substrate 220 can be determined according to the shape, number, and height of the plurality of first projections 120 of the core member 100. For example, if the plurality of first protrusions 120 are two first protrusions 120a and 120b, the cavities may be formed to correspond thereto.

In addition, the second substrate 220 may have a rectangular cross-section or a rectangular shape so as to be in the form of a chip when coupled with the core member 100. For example, the length in the longitudinal direction and the length in the width direction of the second substrate 220 may be similar to the length and width of the support portion 110, and the height of the substrate 220 may be equal to the height of the first protrusions 120a and 120b May sufficiently be positioned in the cavity.

The coil portion 200b may include a connection coil 210 connecting the coils wound on the two first protrusions 120a and 120b to each other. The connection coil 210 may also be formed in the cavity of the second substrate 220.

When the coil is wound around the two first protrusions 120a and 120b without the second substrate 220 and the two first protrusions 120a and 120b are connected through the coupling coil 210, (210) may break or become loose.

On the other hand, by disposing the coil portion 200b including the connection coil 210 in the cavity of the second substrate 220, it is possible to prevent the connection coil 210 from being broken or loosened.

8B is a view illustrating a case where a coil portion 200b is wound on a plurality of first protrusions 120 in an antenna device according to another embodiment of the present invention.

8B, the coil portion 200b directly wound on the two first protrusions 120a and 120b may be positioned in the cavity of the second substrate 220, unlike FIG. 8A.

That is, in the case where the coil part 200b is formed inside the second substrate 220 (FIG. 8A), the two first protrusions 120a and 120b, in which the coil part 200b is wound, 220). ≪ / RTI >

8A, the size of the cavity of the second substrate 220 may be larger than the cavity of the second substrate 220 shown in FIG. 8A so that the coil part 200b may be located inside the cavity. It can be big.

9 is a view showing a direction of magnetic flux in an antenna device according to an embodiment of the present invention.

Referring to FIG. 9, the antenna device according to an embodiment of the present invention can form a magnetic path having an angle of 180 degrees formed by a direction in which a magnetic flux is incident with respect to a direction in which magnetic flux is emitted.

More specifically, if magnetic flux is emitted from the end face 121a of the first protrusion 120a of the two first protrusions 120a and 120b, a magnetic flux enters the end face 121b of the first protrusion 120b .

Conversely, if the magnetic flux is emitted from the end face 121b of the first protrusion 120b, the magnetic flux may be incident on the end face 121a of the first protrusion 120a.

Accordingly, the external device using the NF and the antenna device according to the present invention can be formed facing each other to form a magnetic path, and data can be transmitted and received using bidirectional communication.

10A and 10B are perspective views of an antenna device according to another embodiment of the present invention.

10A and 10B, an antenna device according to another embodiment of the present invention may include a core member 500 and a coil portion 600a wound on the core member 500. [

The core member 500 may include a first core portion 510a, a second core portion 510b, and a third core portion 510c.

The first core portion 510a may have a first end face 511a through which magnetic flux enters and exits and a first end face 512a opposite to the first end face 511a. The second core portion 510b may have a second end face 511b through which the magnetic flux enters and exits and a second end face 512b opposite to the second end face 511b.

The first and second end faces 511a and 511b may be polygonal or circular in shape so that the first and second core portions 510a and 510b can be miniaturized by mounting the antenna device on the substrate.

Further, the first and second core portions 510a and 510b may be formed in a columnar shape as a whole, but are not limited thereto.

The third core portion 510c may be disposed between the first and second core portions 510a and 510b. More specifically, the first and second core portions 510a and 510b may be disposed so as to be orthogonal to the third core portion 110 at both ends in the longitudinal direction of the third core portion 510c.

Therefore, the first core portion 510a and the second core portion 510b may be disposed on both sides of the third core portion 510c in the longitudinal direction.

The coil portion 600 may be wound on the third core portion 510c or may be wound on each of the first and second core portions 511a and 511b (600b, Fig. 10b).

First, referring to FIG. 10A, the coil portion 600a may be wound around the third core portion 510c so as to transmit and receive a 13.56 MHz band signal for the NF. The coil portion 600a can transmit and receive data to and from external electronic devices by electromagnetic induction formed in and out of the end faces 511a and 511b of the first and second core portions 510a and 510b.

At this time, the external electronic device may include an antenna capable of transmitting and receiving the same frequency band signal.

In addition, the coil portion 600a may be wound around the third core portion 510c in a circular shape as shown in FIG. 10A, but is not limited thereto.

That is, the coil portion 600a may be wound in the same manner as the sectional shape (for example, a quadrangle) of the third core portion 510c, or may be wound so as to have an inclination (not shown).

10B, the antenna device according to an embodiment of the present invention includes a coil portion 600b having first and second core portions 510a and 510b-more specifically, first and second end surfaces 511a and 511b and higher than the third core portion 510c, respectively.

The number of times that the coil portion 600b is wound on each of the first and second core portions 510a and 510b is determined according to the resonance frequency of the antenna device according to the present invention so as to transmit and receive signals in the 13.56 MHz band .

10B, the antenna device according to another embodiment of the present invention may further include a second substrate 220 (see FIG. 8A) having a cavity, and the coil portion 600b may be formed on the second substrate (See Fig. 8A).

Thus, by locating the coil part 600b including the connection coil 610 in the cavity of the second substrate 220 (see FIG. 8A), it is possible to prevent the connection coil 610 from being broken or loosened.

In addition, in the antenna device according to the present invention, the core member 100 and the second substrate 220 (see FIG. 8A) are coupled to each other to have a chip-like structure, thereby achieving miniaturization.

At this time, the material and the shape of the coil parts 600a and 600b are the same as those described above and will not be described.

11 is a view showing first and second virtual lines in an antenna device according to another embodiment of the present invention.

Referring to FIG. 11, the first imaginary line may be a straight line connecting the first and second end faces 511a and 511b. The second imaginary line may be a straight line connecting the first and second actual views 512a and 512b.

If a distance from the first virtual line to the third core part 510c is a and a distance from the second virtual line to the third core part 510c is b, a may be larger than b.

More specifically, the third core portion 510c is disposed between the first and second core portions 510a and 510b so that a has a value larger than b, so that the first and second end faces 511a and 511b It is possible to increase the intensity of the magnetic flux entering and exiting through the magnetic pole.

12A to 12D are views showing an antenna device and electronic parts having the antenna device according to another embodiment of the present invention.

12A to 12D, the core member 500 includes a first extending portion 513a disposed in the first core portion 510a and a second extending portion formed in the second core portion 510b 513b.

More specifically, the first extended portion 513a may be disposed on the first core portion 510a in the direction from the third core portion 510c toward the first core portion 510a. The second extension forming portion 513b may be disposed on the second core portion 510b in the direction from the third core portion 510c to the second core portion 510b.

That is, the first and second extension forming portions 513a and 513b may be disposed in opposite directions with respect to the third core portion 510c. In addition, the core member 500 may have an inverted shape and an inverted shape.

The first and second extending portions 513a and 513b are not limited to those shown in Figs. 12A to 12D, and may have various shapes, cross-sections, and sizes.

In addition, the first and second extending portions 513a and 513b need not necessarily have the same shape, and the distances from the first and second mounting views 512a and 512b do not necessarily have to be the same.

That is, the first and second extension forming portions 513a and 513b may be disposed on the first and second core portions 510a and 510b so as to obtain the direction of the target magnetic flux.

Meanwhile, the antenna device 20 according to the present invention can be mounted on the first substrate 700 through the first and second pad portions 520a and 520b, thereby configuring the electronic device 10. FIG.

The first substrate 700 may be a substrate mounted in a portable terminal such as a smart phone, and a plurality of active elements, passive elements, integrated circuits (IC), and the like may be mounted on the substrate. One embodiment of the first substrate 700 may be a printed circuit board (PCB).

The antenna device 20 includes a first core portion 510a having a first mounting surface where the first pad portion 520a is disposed and a second core portion 510b having a second mounting surface A core member 500 having a first core portion 510b and a third core portion 510c disposed between the first core portion 510a and the second core portion 510b, 600).

The first core portion 510a may further include a first end face 511a opposite to the first end face, and the second core portion 510b may include a second end face opposite to the second end face, (511b).

The core member 500 can allow magnetic flux to enter and exit through the first and second end faces 511a and 511b.

The first and second pad portions 520a and 520b may extend from one surface of the first and second extension forming portions 513a and 513b toward the first substrate 700. [

As a result, it is possible to improve the bonding strength to the first substrate 700 and to prevent the antenna device 20 according to the first embodiment of the present invention from falling down when mounted on the first substrate 700 .

The first and second pad portions 520a and 520b may be spaced apart from each other so as to be surface-mountable on the first substrate 700. At this time, the antenna device 20 may be electrically connected to each other by soldering in a state where the first and second pad portions 520a and 520b are placed in contact with the first substrate 700.

12A and 12B, the coil portion 600a may be wound on the third core portion 510c.

12C, the coil portion 600b may be wound on the first and second core portions 510a and 510b. Further, referring to FIG. 12D, the coil portions 600a and 600b may be wound around the first and second core portions 510a and 510b, And may be wound on the third core portions 510a, 510b, and 510c, respectively.

The coil units 600a and 600b can transmit and receive data by electromagnetic induction in accordance with the magnetic flux. More specifically, the coil portions 600a and 600b may be electrically connected to circuit portions mounted on the first substrate 700 through the first and second pad portions 520a and 520b.

More specifically, the first substrate 700 may be provided with a circuit portion including an NFC chip (not shown), wherein the coil portion 600 includes first and second pad portions 520a and 520b To the circuit portion.

It is possible to transmit and receive data to and from external electronic devices by electromagnetic induction formed in and out of the end faces 511a and 511b of the first and second core portions 510a and 510b. At this time, the external electronic device may include an antenna capable of transmitting and receiving the same frequency band signal.

The shape in which the coil parts 600a and 600b are wound, the number of turns, the material, and the shape of the cross section are the same as those described above, and thus will not be described.

12A and FIG. 12D, the antenna device according to another embodiment of the present invention may further include a second substrate 220 having a cavity (see FIGS. 8A and 8B) May be located in the cavity of the second substrate 220 (see Figures 8A and 8B).

The antenna device 10 according to the present invention can achieve miniaturization by having the core member 100 and the second substrate 220 (see Fig. 8A) coupled to each other to have a chip-like structure.

13A and 13B are diagrams showing the directions of magnetic fluxes according to winding positions of the coil parts 200a and 200b (Figs. 1 and 6A) in the antenna device according to the embodiment of the present invention.

13A and 13B, when the coil part 200b (see FIG. 6A) is wound around the plurality of first protrusions 120 when the coil part 200a (see FIG. 1) is wound on the support part 110 The strength of the magnetic flux formed around the two first protrusions 120a and 120b (see FIG. 1) is stronger than that in the case where the magnetic flux is wound around the first protrusions 120a and 120b.

Electronics

14 is an exploded perspective view of an electronic device according to another embodiment of the present invention.

1, 3A, and 14, an electronic device according to another embodiment of the present invention includes an electronic device cover 30, an antenna device 20 disposed inside the electronic device cover 30 And a first substrate 400 (see FIG. 3A).

The electronic device cover 30 may be disposed on the inner surface or the outside of the electronic device. For example, the cover 30 for an electronic device can be an outer cover of an electronic device, and can be an inner cover for an electronic device. In the embodiment of the present invention, for example, the electronic device cover 30 is described as an outer cover, but the present invention is not limited thereto.

Meanwhile, one embodiment of the material for the electronic device cover 30 may be plastic.

The antenna device 20 includes a supporting portion 110 and a plurality of first protrusions 120 disposed on one side of the supporting portion 110 and a plurality of second protrusions 130 disposed on the other side opposite to the one side, And may include a member 100 and a coil portion 200a wound on the core member 100. [

The plurality of first protrusions 120 may include a plurality of end faces 121a and 121b through which the magnetic flux enters and exits, and its shape and position are not limited if the magnetic flux enters and exits.

The plurality of second protrusions 130 may have a plurality of end faces 131a and 131b provided in a mounting surface and the antenna device 20 may include a plurality of second protrusions 130a and 131b disposed on the end faces 131a and 131b, 1 and the second pads 310 and 320. In this case,

Although not shown in FIG. 14, the antenna device 20 mounted on the first substrate 400 includes a first molding part 410 (FIG. 4A) disposed between the two first protrusions 120a and 120b .

Alternatively, the antenna device 20 mounted on the first substrate 400 may include a support 110, two first protrusions 120a and 120b, and two second protrusions 130a and 130b, 2 molding part 420 (FIG. 4B).

The first molding part 410 or the second molding part 420 are the same as those described with reference to FIGS. 4A and 4B, and therefore will not be described.

The first substrate 400 may include a circuit unit to which the antenna device 20 is connected. The first substrate 400 may include an NFC chip (not shown) electrically connected to the antenna device 20 have.

Therefore, the antenna device 20 may be mounted on the first substrate 400 and disposed inside the cover 30 for the electronic device. For example, the antenna device 20 may be disposed on the inner surface of the cover 30 for an electronic device, or may be disposed on an inner cover of a portable terminal that is an electronic device, or may be disposed on a battery (not shown).

The coil portion 200a of the antenna device 20 is electrically connected to the circuit portion of the portable terminal body through the first and second pad portions 310 and 320, It is not limited to a specific position as long as it can form an electromagnetic coupling.

However, if the antenna device 20 is applied as an antenna for performing NF, for example, the antenna device 20 may be disposed at a position where electromagnetic waves can enter and exit through a part of the cover 30 for the electronic device.

The present invention is not limited by the above-described embodiments and the accompanying drawings, but is intended to be limited only by the appended claims. It will be apparent to those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. something to do.

10: an electronic component having an antenna device;
20: antenna device;
30: Cover for electronic device;
40: portable terminal body;
100, 500: core member;
110: support;
120: a plurality of first projections;
130: a plurality of second projections;
510a to 510c: first to third core portions;
200, 600: nose portion;
400, 700: a first substrate;
220: second substrate
310, 520a: first pad portion;
320, 520b: a second pad portion;
513a, 513b: first and second extension forming portions;

Claims (40)

A core member having a support portion and a plurality of first projections disposed on one surface of the support portion; And
A coil part wound around the core member; Lt; / RTI >
Wherein the core member further includes a plurality of second projections disposed on the other surface opposite to the one surface, and the plurality of second projections have a cross section provided as a mount surface.
The method as claimed in claim 1,
Wherein the plurality of second protrusions are mounted on the first substrate through a plurality of pad portions disposed in a mounting surface of the plurality of second protrusions.
2. The apparatus according to claim 1, wherein the plurality of first and second projections
And the core member is disposed in the support portion so as to have an 'H' shape.
The method according to claim 1,
Wherein at least one of the plurality of first projections has a sloped cross section.
2. The apparatus according to claim 1, wherein the plurality of first projections
And has a cross section through which magnetic flux enters and exits.
The method according to claim 1,
Wherein a length of at least one of the plurality of first projecting portions protruding from the support portion,
Wherein at least one of the plurality of second projections is different from a length protruding from the support portion.
2. The apparatus according to claim 1,
And is wound on the support portion.
2. The apparatus according to claim 1,
And is wound on each of the plurality of first projections.
9. The method of claim 8,
A second substrate coupled to the core member; Further comprising:
And the coil portion is located in a cavity of the second substrate.
An antenna device for transmitting and receiving data by electromagnetic induction in accordance with entrance and exit of a magnetic flux,
A core member having a plurality of cross-sections through which the magnetic flux enters and exits; And
A coil part wound around the core member; Lt; / RTI >
Wherein the core member further comprises at least one mounting surface for mounting on a first substrate.
11. The semiconductor device according to claim 10,
Wherein the first substrate is mounted on the first substrate through a pad portion disposed in the at least one mounting surface.
11. The semiconductor device according to claim 10,
Wherein an angle formed by a direction in which the magnetic flux enters in a direction of a magnetic flux emitted from one of the plurality of cross sections is 180 degrees.
11. The semiconductor device according to claim 10,
A first protrusion having the plurality of sections;
A second projection having the at least one mounting surface; And
Wherein the first protrusion is disposed on one surface and the second protrusion includes a support disposed on the other surface opposite to the one surface.
14. The apparatus according to claim 13,
And is wound on at least one of the support portion and the first projecting portion.
An antenna device for transmitting and receiving data by electromagnetic induction in accordance with entrance and exit of a magnetic flux,
A first core portion having a first end face through which the magnetic flux enters and exits and a first end face opposed to the first end face, a second end face through which the magnetic flux enters and exits, and a second end face opposed to the second end face A core member including a first core portion, a second core portion, and a third core portion disposed between the first and second core portions;
A coil part wound around the core member; And
First and second pad portions disposed in the first and second seals; .
16. The semiconductor device according to claim 15,
And the first and second pad portions are mounted on the first substrate.
16. The method of claim 15,
Wherein at least one of the first and second end faces has an inclination.
16. The method of claim 15,
Wherein an area of each of the first and second end faces is larger than an area of the first and second end faces.
16. The method of claim 15,
A distance from a first imaginary line connecting the first and second end faces to the third core portion is a and a distance from a second imaginary line connecting the first and second end faces to the third core portion, Is b,
Wherein a is greater than b.
16. The semiconductor device according to claim 15,
A first elongated portion disposed on the first core portion; And
A second elongated portion disposed on the second core portion; Further comprising:
Wherein the first and second extension forming portions are disposed in directions opposite to each other with respect to the third core portion.
16. The semiconductor device according to claim 15,
Antenna device in the form of ".".
16. The apparatus according to claim 15,
And is wound around the first and second core portions.
23. The method of claim 22,
A second substrate having a cavity and coupled with the core member; Further comprising:
And the coil portion is located in a cavity of the second substrate.
16. The apparatus according to claim 15,
And is wound on the third core portion.
16. The apparatus according to claim 15,
And each of the first and second core portions and the third core portion.
A first substrate; And
An antenna device disposed on the first substrate through the first and second pad portions and connected to the circuit portion; Lt; / RTI >
The antenna device includes a first core portion having a first seal surface in which the first pad portion is disposed, a second core portion having a second seal surface in which the second pad portion is disposed, And a third core portion disposed between the first core portion and the second core portion; And a coil part wound on the core member; And an antenna device including the antenna device.
27. The method of claim 26,
Wherein the first core portion further comprises a first end face facing the first seal face and the second core portion further comprises a second end face opposing the second seal face,
Wherein the core member has a magnetic flux entering and exiting through the first and second end faces, and the coil portion has an antenna device for transmitting and receiving data by electromagnetic induction in accordance with entrance and exit of the magnetic flux.
28. The method of claim 27,
A distance from a first imaginary line connecting the first and second end faces to the third core portion is a and a distance from a second imaginary line connecting the first and second end faces to the third core portion, Is b,
And wherein a has an antenna device greater than b.
28. The method of claim 27,
Wherein at least one of the first and second end faces has an inclined antenna device.
28. The method of claim 27,
Wherein an area of each of the first and second cross-sections is larger than an area of the first and second seal areas.
27. The method according to claim 26,
And an antenna device that is wound on each of the first and second core portions.
32. The method of claim 31,
A second substrate having a cavity and coupled with the core member; Further comprising:
And the coil portion has an antenna device located in a cavity of the second substrate.
27. The method according to claim 26,
And an antenna device that is wound around the third core portion.
27. The semiconductor device according to claim 26,
A first elongated portion disposed on the first core portion; And
A second elongated portion disposed on the second core portion; Wherein the first and second extension forming portions are disposed in directions opposite to each other with respect to the third core portion.
Cover for electronic equipment;
An antenna device disposed inside the cover for the electronic device; And
A first substrate having a circuit portion to which the antenna device is connected; / RTI >
The antenna device includes: a core member having a support portion, a plurality of first protrusions disposed on one surface of the support portion, and a plurality of second protrusions disposed on the other surface opposite to the one surface; And a coil part wound on the core member; Lt; / RTI >
Wherein the plurality of second projections have a cross section provided in a mounting scene,
Wherein the antenna device is mounted on the first substrate through a plurality of pad portions arranged in a cross section provided on the mounting surface.
36. The apparatus of claim 35,
An NFC chip electrically connected to the antenna device; .
36. The apparatus of claim 35,
And is wound on the plurality of first projections.
The antenna device according to claim 37,
A second substrate coupled to the core member; Further comprising:
And the coil portion is located in a cavity of the second substrate.
The antenna device according to claim 35,
A coil part wound on the support part; Further comprising:
36. The method of claim 35, wherein the plurality of first projections
A cross-section through which magnetic flux enters and leaves; .

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