Shielding apparatus

A shielding apparatus is provided. The apparatus includes a printed circuit board including a plurality of catching parts, a shield member configured to cover the printed circuit board, and at least one shield fastening part provided in the shield member and configured to be one of fastened to and separated from the plurality of catching parts by a resilient force while not protruding.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application claims the benefit under 35 U.S.C. §119(a) of a Korean patent application filed on Jul. 11, 2013 in the Korean Intellectual Property Office and assigned Serial No. 10-2013-0081557, the entire disclosure of which is hereby incorporated by reference.

TECHNICAL FIELD

The present disclosure relates to a shielding apparatus provided in an electronic device. More particularly, the present disclosure relates to a shielding apparatus which allows a shield member to be fastened or released.

BACKGROUND

In general, while electronic waves may be usefully utilized in wireless communications or radars, they may negatively influence operations of electronic devices; a phenomenon which is referred to as the Electro-Magnetic Interference (EMI) phenomenon. The electro-magnetic interference phenomenon generates noise in electronic devices and acts as a harmful element to human bodies.

Thus, in recent technology, an electro-magnetic interference phenomenon generated in electronic components installed on a printed circuit board provided within an electric device is interrupted by covering the electronic components with a shield member (e.g., a shield part or a shield can), so that it cannot influence operations of the electronic devices as well as other electronic devices. The shield member has a box shape at a lower end which is opened to cover an electronic component.

Further, the shield member is fixedly installed on a printed circuit board by a screw and a clip provided to couple or fasten a side wall of the shield member while the shield member is located on the printed circuit board.

FIG. 1is an exploded perspective view showing a configuration of a shielding apparatus employing a screw fastening structure according to the related art; andFIG. 2is a side view showing an operation of the shielding apparatus employing a screw fastening structure according to the related art.

Referring toFIGS. 1 and 2, a screw fastening structure of the shielding apparatus1according to the related art includes a printed circuit board2provided with an electronic component2a, a plurality of screw holes2bprovided on the printed circuit board2, and a shield member4having a plurality of fastening holes4acorresponding to the screw holes2b.

As shown inFIG. 1, after the fastening holes4aof the shield member4are aligned with the screw holes2b, screws3are fastened to the holes4aand2bto fix the shield member4to the printed circuit board2.

However, as shown inFIG. 2, since the shielding apparatus1fixed through the related-art screw structure has a structure in which heads3aof the screws3protrude from a surface of the printed circuit board2, a space A1for the heads3aof the screws3is necessary when the shield member4is assembled. Accordingly, volumes of the shield member4and the printed circuit board2increase, and assembly time and manufacturing costs increase as the screws3should be fastened to fix the shield member4to the printed circuit board2.

FIG. 3is an exploded perspective view showing a configuration of a shielding apparatus employing a clip structure according to the related art.

Referring toFIG. 3, a shielding apparatus employing a clip fastening method according to the related art includes a printed circuit board20provided with an electronic component20a, a plurality of fixing clips30provided on the printed circuit board20, and a shield member40fastened and fixed to the fixing clips30.

However, the related-art fixing clips are mounted to the printed circuit board in a Surface Mounted Device (SMD) type to provide the shield member. Thus, the fixing clips increase assembly time and manufacturing costs due to the SMD process.

Further, since the related-art fixing clips have structures mounted to the printed circuit board through soldering, strengths thereof are weak after they are mounted to the printed circuit board and it is difficult to expand a ground of the printed circuit board. In addition, since outermost portions of the shield member are inserted into the fixing clips, it is difficult to expand the shield member to an area other than a specific area requiring shielding. That is, since additional fixing clips should be installed in an area other than the areas using the shield member through soldering and the shield member should be processed additionally, it is still more difficult to extend the shield member.

Thus, an apparatus for fastening or separating the shield member to and from the printed circuit board without protrusion of the shield member when the shield member is fastened to the printed circuit board and conveniently extending the shield member from the printed circuit board is required.

SUMMARY

Aspects of the present disclosure are to address at least the above-mentioned problems and/or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the present disclosure is to provide a shielding apparatus that includes at least one shield fastening part for fastening or separating a shield member from a printed circuit board with a resilient force when the shield member is fastened to the printed circuit board while not protruding from the printed circuit board, so that the shield member can be fastened or separated without using a related-art screw or clip and an assembly process thereof can be simplified by reducing the number of fastening components, making it possible to reduce assembly process time and manufacturing costs.

Another aspect of the present disclosure is to provide a shielding apparatus that includes a shield fastening part while the shield fastening part does not protrude from a printed circuit board, so that a component mounting space in the printed circuit board can be secured and a space can be efficiently utilized, and the sizes and volumes of products (for example, electronic devices) forming the printed circuit board can be made small or slim.

Another aspect of the present disclosure is to provide a shielding apparatus that has a catching part having an inclined catching hole fastened to a shield fastening part of a shield member in a printed circuit board to be conveniently fastened to or separated from the shield fastening part, and in which the catching part is formed of a metal material to additionally expand the ground of the printed circuit board.

Another aspect of the present disclosure is to provide a shielding apparatus in which a shield member is formed by fastening a shield fastening part to a catching part having an inclined catching hole formed in a printed circuit board so that an assembly process can be conveniently performed without a soldering process needed when a related-art fixing clip is mounted to the printed circuit board, a fastening force and a strength of the shield member can be enhanced, and the shield member can be expanded to areas other than a specific area requiring a shield.

Another aspect of the present disclosure is to provide a shielding apparatus that includes a fastening releasing part for releasing a shield fastening part fastened to a shield member to allow the shield member to be easily separated from a printed circuit board.

In accordance with an aspect of the present disclosure, a shielding apparatus is provided. The shielding apparatus includes a printed circuit board including a plurality of catching parts, a shield member configured to cover the printed circuit board, and at least one shield fastening part provided in the shield member and configured to be one of fastened to and separated from the plurality of catching parts by a resilient force while not protruding.

In accordance with a first embodiment of the present disclosure, a shielding apparatus is provided. The shielding apparatus includes a printed circuit board including a plurality of catching parts, a shield member configured to cover the printed circuit board, and at least one shield fastening part provided in the shield member that is configured to be prevented from protruding from the plurality of catching parts when being one of fastened to and separated from the plurality of catching parts.

In accordance with a second embodiment of the present disclosure, a shielding apparatus is provided. The shielding apparatus includes a printed circuit board including a plurality of catching parts, a shield member configured to cover the printed circuit board, and at least one shield fastening part provided at an inside of the shield member that is configured to be prevented from protruding from the plurality of catching parts when being one of fastened to and separated from the plurality of catching parts.

In accordance with a third embodiment of the present disclosure, a shielding apparatus is provided. The shielding apparatus includes a printed circuit board including a plurality of catching parts, a shield member configured to cover the printed circuit board, and at least one shield fastening part provided on an outside and an inside of the shield member that is configured to be prevented from protruding from the plurality of catching parts when being one of fastened to and separated from the plurality of catching parts.

DETAILED DESCRIPTION

FIG. 4is an exploded perspective view showing a configuration of a shielding apparatus according to a first embodiment of the present disclosure.FIG. 5is a side view showing the configuration of the shielding apparatus according to the first embodiment of the present disclosure.

Referring toFIGS. 4 and 5, first, the shielding apparatus100according to the first embodiment of the present disclosure includes a printed circuit board110provided in an electronic device (not shown), a shield member120covering the printed circuit board110, and at least one shield fastening part130. A plurality of catching parts111having inclined catching holes to be fastened to or separated from the shield fastening part130may be provided in the printed circuit board110. The shield member120covers an upper surface of the printed circuit board110to interrupt an Electro-Magnetic Interference (EMI) phenomenon generated from electronic device components provided in the printed circuit board110. The shield fastening parts130are provided in the shield member120to be fastened to or separated from the catching parts111by a resilient force, and to be prevented from protruding from the catching parts111at the same time. That is, the shield fastening parts130are fastened from the catching parts111of the printed circuit board110while not protruding.

Here, the shield member120may be a shield can or a bracket. Although a shield can or a bracket is exemplified as the shield member120in the embodiment of the present disclosure, the present disclosure is not limited thereto. That is, any configuration which can interrupt an EMI phenomenon of the electronic device components170may be applied as various modifications of the shield member120.

Examples of the electronic device according to various embodiments of the present disclosure include all information communication devices and multimedia devices such as a Portable Multimedia Player (PMP), a digital audio player, a navigation device, a gaming device, a notebook, an advertising panel, a TeleVision (TV), a digital broadcasting player, a Persona Digital Assistant (PDA), and a smart phone and application device thereof, including all mobile communication terminals operated based on communication protocols corresponding to various communication systems.

In particular, in the various embodiment of the present disclosure, since the shield fastening parts130are fastened to or separated from a surface of the printed circuit board110while not protruding, the shied member120can be fastened and separated without using a related-art screw or clip, and an assembly process thereof can be simplified by reducing the number of shield fastening parts130as well. Accordingly, assembly time and manufacturing costs can be reduced, and space for mounting components170in the printed circuit board110can be secured and utilized more usefully.

In more detail, each of the catching parts111may have an inclined catching hole or a curved catching hole which is widened from an upper side toward a lower side to be easily fastened to or separated from the shield fastening part130. In addition, a thickness of an upper portion of the catching part111is made larger than a thickness of a lower portion of the catching part111to prevent damage to the catching part111due to a contact thereof when the catching part111is fastened to the shield fastening part130. Thus, an upper portion of the catching part111increases a strength thereof while preventing the catching part111from being easily damaged.

FIG. 7is a side sectional view showing configurations of the catching parts111according to the first embodiment of the present disclosure, andFIG. 8is a side sectional view showing another example of the catching parts111according to the first embodiment of the present disclosure.

Referring toFIG. 7, the inclined surfaces111aof the catching parts111may be formed of a metal material to expand a ground of the printed circuit board110. Referring toFIG. 8, the inclined surfaces111aof the catching parts111may be formed of or coated with an insulating material.

At least one coupling part121is provided at an outer circumference of the shield member120to include the shield fastening parts130.

In particular, the shield fastening parts130may be any one of spring fasteners and plate springs. Other types of springs as well as spring fasteners and plate springs may be applied to the shield fastening parts130. In the embodiment of the present disclosure, spring fasteners will be exemplified.

Meanwhile, as shown inFIG. 5, the shield fastening part130includes a fastening head131, a resilient space132, and a support133. The fastening head131is provided at one end of the shield fastening part130, and is contracted or expanded to be fastened to or separated from the catching part111. The resilient space132is formed at a center of the fastening head131so that the fastening head131can be contracted or expanded. The support133connects the shield member120and the fastening head131while supporting them.

In addition, the fastening head131may have a rhombic or circular shape. Here, the fastening head131is not limited to a rhombic or circular shape. For example, the fastening head131may have a triangular, polygonal, or elliptical shape. In the embodiment of the present disclosure, the fastening heads131may have shapes of “”.

Here, the fastening head131will be described in more detail as follows. First, as shown inFIG. 5, the fastening head131includes an inclined contact portion131aand an inclined insertion portion131b. The inclined contact portion131ais caught by the inclined catching hole111while contacting the inclined catching hole111. The inclined insertion portion131bis formed at one end of the fastening head131to be inserted into the inclined catching hole111. That is, the inclined insertion portions131bbecome close to each other to be inserted into the inclined catching hole111.

An inclination angle between the inclined contact portion131aand the inclined insertion portion131bmay be 60 to 120 degrees. A specific inclination angle between the inclined contact portion131aand the inclined insertion portion131bmay be 90 degrees.

As shown inFIG. 4, at least one guide rib140is formed in the shield member120to be coupled to at least one guide groove112formed in the printed circuit board110and stably fix the shield member120to the printed circuit board110at the same time.

Meanwhile, another example of the fastening head150included in the shield fastening part130will be described below in more detail with reference to the following drawings.

FIG. 9Ais a side sectional view showing a state before coupling of another example of the fastening head150according to the first embodiment of the present disclosure.FIG. 9Bis a side sectional view showing a coupling process of the other example of the fastening head150according to the first embodiment of the present disclosure.FIG. 9Cis a side sectional view showing a coupled state of the other example of the fastening head150according to the first embodiment of the present disclosure.

Referring toFIG. 9A, the fastening head150has a multi-stepped fastening portion151to be fastened to or separated from a plurality of inclined surfaces111aformed in the catching part111in multi-steps. In the embodiment of the present disclosure, the fastening heads150may have shapes of “”.

Referring toFIG. 9B, when the fastening heads131are inserted between the catching parts111, the multi-stepped fastening portions151become close to each other to be contracted at the same time, and are inserted between the catching parts111. Referring toFIG. 9C, the contracted fastened heads150are inserted between the catching parts111to be expanded at the same time so that the multi-stepped fastening portions151of the fastening heads150are fastened to the plurality of inclined surfaces111aof the catching parts111in multi-steps.

Thus, since the fastening heads150are fastened to the catching parts111in multi-steps, a fastening force between the shield member120and the printed circuit board110can be further improved.

An example of another embodiment of the fastening heads130bprovided in the shield fastening part130will be described below in more detail with reference to the following drawings.

FIG. 10Ais a side sectional view showing a state before coupling of another example of the fastening heads130according to the first embodiment of the present disclosure.FIG. 10Bis a side sectional view showing a fastening process of the other example of the fastening head130baccording to the first embodiment of the present disclosure.FIG. 10Cis a side sectional view showing a fastened state of the other example of the fastening head131according to the first embodiment of the present disclosure.

Referring toFIG. 10A, the fastening heads130bhave circular shapes to be fastened to or separated from the inclined surfaces111aformed in the catching parts111. In the embodiment of the present disclosure, the fastening heads130bmay have shape of “”.

Referring toFIG. 10B, when the fastening heads130bare inserted between the catching parts111, the circular fastening heads130bbecome close to each other to be contracted, and are inserted between the catching parts111. Referring toFIG. 10C, the contracted circular fastening heads130bare inserted between the catching parts111to be expanded, and are caught by the inclined surfaces111aof the catching parts111to be fastened.

Thus, since the fastening heads130bare fastened to the catching parts111, a fastening force between the shield member120and the printed circuit board110can be further improved.

Further, the catching parts111may have the inclined surfaces111a. Although the inclined surfaces111aare exemplified as the catching parts111, the present disclosure is not limited thereto. That is, a configuration having another shape to contact the fastening heads130bhaving a circular shape may be applied to the catching parts111. For example, the catching parts111may have semispherical shapes to be fitted with the fastening heads131having a circular shape.

Meanwhile, a fastening releasing part160of the shielding apparatus will be described below in more detail with reference to the following drawings.

FIG. 11Ais a side sectional view showing a state before an operation of a fastening releasing part160according to the first embodiment of the present disclosure.FIG. 11Bis a side sectional view showing an operation process of the fastening releasing part160according to the first embodiment of the present disclosure.FIG. 11Cis a side sectional view showing a state after an operation of the fastening releasing part160according to the first embodiment of the present disclosure.

Referring toFIG. 11A, the shielding apparatus100includes a fastening releasing part160to release the fastening of the shield fastening parts130while the shield fastening parts130are fastened to the catching parts111of the printed circuit board110.

An inclined contraction recess161is formed at an upper portion of the fastening releasing part160to be coupled to the fastening heads131provided in the shield fastening parts130so that the fastening heads131become close to each other to be contracted.

In this way, in order to separate the shield fastening parts130caught by and fastened to the catching parts111of the printed circuit board110, the contraction recess161of the fastening releasing part160is brought into contact with the fastening heads131.

Referring toFIG. 11B, if the fastening releasing part160is pushed upward, the inclined insertion portions131bprovided in the fastening heads131are inserted into the contraction recess161to become close to each other and the fastening heads131of the shield fastening parts130are contracted to be pointed. Referring toFIG. 11C, the fastening heads131become close to each other and a gap between them becomes thin, and if the fastening releasing parts160are further pushed by a tool, the fastening heads131are separated from the catching parts111and the fastening of the fastening heads131are released.

Thus, the shield fastening parts130can be conveniently separated from the catching parts111by the fastening releasing part160.

Here, a process of fastening the shielding apparatus according to the embodiment of the present disclosure will be described below in more detail.

FIG. 6Ais a side sectional view showing a state before fastening of the shielding apparatus according to the present disclosure.FIG. 6Bis a side sectional view showing a process of fastening the shielding apparatus according to the present disclosure.FIG. 6Cis a side sectional view showing a state after coupling of the shielding apparatus according to the present disclosure.

Referring once again toFIG. 4, components170of an electronic device are mounted to a surface of the printed circuit board110in an SMD type, and a plurality of catching parts111having inclined catching holes are formed in the printed circuit board110. Here, inner sides of the inclined catching holes may be formed of a metal material so that a ground of the printed circuit board110can be extended.

In this state, the shield member120covers an outer circumference of the electronic device components170provided in the printed circuit board110.

Referring toFIG. 6A, the shield fastening parts130provided in the shield member120are inserted into an entrance formed by the catching parts111. That is, the shield heads131of the shield fastening parts130are inserted into an entrance formed by the catching parts111. Since a resilient space132is formed at a center of the fastening heads131to be contracted or expanded by a resilient force, the resilient space132is contracted to become narrow when the fastening heads131contact the entrance of the catching parts111having the inclined catching holes.

In particular, since the inclined insertion portions131bare formed at ends of the fastening heads131to be inserted into the inclined catching holes111, the inclined insertion portions131bare inserted into the entrances of the catching holes111.

Referring toFIG. 6B, the inclined insertion portions131bof the fastening heads131become close to each other and a width between them becomes narrow, and a shape of the fastening heads131becomes pointed. In this state, if the shield member120is further pushed, referring toFIG. 6C, the fastening heads131pass between the catching parts111and are expanded between the catching parts111to be widened, and the inclined contact portions131aof the fastening heads131are brought into contact with the inner inclined surfaces111bof the inclined catching holes111. Then, the fastening heads131are caught by the catching parts111to be fastened.

Thus, if the fastening heads131are fastened to the catching parts111, the shield fastening parts130are fastened and fixed to the printed circuit board110. Then, since at least one guide rib140is formed on a surface of a lower end of the shield member120, the guide ribs140are inserted into and coupled to at least one guide groove112formed in the printed circuit board110to stably fasten and fix the shield member120to the printed circuit board110when the shield member120covers the printed circuit board110.

Accordingly, since the shield fastening parts130are fixed to the printed circuit board110while not protruding, screws and clips protruding from the existing printed circuit board110are not necessary, and a space for mounting a component170in the printed circuit board110can be secured.

Hereinafter, a shielding apparatus according to a second embodiment of the present disclosure will be described with reference toFIG. 12.

FIG. 12is a side sectional view showing a configuration of a shielding apparatus according to a second embodiment of the present disclosure.

Referring toFIG. 12, first, the shielding apparatus200includes a printed circuit board210provided in an electronic device (not shown), a shield member220covering the printed circuit board210, and at least one shield fastening part230. A plurality of catching parts211having inclined catching holes to be fastened to or separated from the shield fastening part230, which will be described below, may be provided in the printed circuit board210. The shield member220covers an upper surface of the printed circuit board210to interrupt the EMI phenomenon generated from electronic device components170provided on the printed circuit board210. The shield fastening parts230are provided inside the shield member220to be fastened to or separated from the catching parts211by a resilient force and to prevent the shield fastening parts230from protruding from the catching parts211. That is, the shield fastening parts230and the catching parts211of the printed circuit board210are located in the shield member220, and the shield fastening parts230are fastened to the catching parts211while not protruding.

Meanwhile, as shown inFIG. 12, the shield fastening part230includes a fastening head231, a resilient space232, and a support233. The fastening head231is provided at an end of the shield fastening parts230to be contracted or expanded so as to be fastened to or separated from the catching parts211. The resilient space232is formed at a center of the fastening head231so that the fastening head231is contracted or expanded. The support233connects an inside of the shield member220and the fastening head231to support them.

The length of the support233is formed to be the same as the thickness of a side surface of the shield member220so that the shield fastening part230is provided inside the shield member220.

Here, a shape and an angle of the fastening head231is the same as in the first embodiment of the present disclosure, and thus a description will be omitted herein.

A process of fastening the shielding apparatus200according to the embodiment of the present disclosure will be described below in more detail.

First, as shown inFIG. 12, the shield member220covers an outer circumference of the electronic device component170provided in the printed circuit board210.

Then, the shield fastening part230provided inside the shield member220is inserted into an entrance formed by the catching parts211. That is, the fastening head231is inserted into the entrance of the catching parts211first. Since a resilient space232is formed at a center of the fastening head231to be contracted or expanded by a resilient force, the resilient space232becomes narrow when the fastening head231contacts the entrance of the catching parts211.

In particular, since the inclined insertion portion is formed at one end of the fastening head231to be inserted between the catching parts211, the inclined insertion portion is inserted into the entrance of the catching parts211.

That is, the inclined insertion portions of the fastening head231become close to each other and a width between them becomes narrow, and a shape of the fastening head231is formed to be pointed. In this state, if the shield member220is further pushed, the fastening head231passes between the catching parts211and is expanded between the catching parts211, and a width thereof becomes wide, so that the inclined contact portions of the fastening head231contact insides of the catching parts211. Then, the fastening head231is caught by the catching parts211to be fastened.

Thus, if the fastening head231is fastened to the catching parts211, the shield fastening part230having the fastening head231is fastened and fixed to the printed circuit board210.

Accordingly, the shield fastening part230is fixed to the printed circuit board210while not protruding, and the shield member220is also fixed to the printed circuit board210.

Here, when fastening of the shield fastening part230fastened to the printed circuit board210is released, fastening of the shield fastening part230is released from the printed circuit board210by using the fastening releasing part160(seeFIG. 11A). Here, the fastening releasing part160is the same as in the first embodiment of the present disclosure, and thus a description thereof will be omitted herein.

FIG. 13is a side sectional view showing a configuration of a shielding apparatus according to a third embodiment of the present disclosure.

A configuration of the shielding apparatus300according to the third embodiment of the present disclosure will be described with reference toFIG. 13. First, the shielding apparatus300includes a printed circuit board310provided with a plurality of catching parts311having inclined catching holes, a shield member320covering the printed circuit board310, and at least one shield fastening part330. The shield fastening parts330are provided inside the shield member320to be fastened to or separated from the catching parts311by a resilient force and to prevent the shield fastening part330from protruding from the catching parts311. That is, the shield fastening part330includes first and second shield fastening parts331and332. The first shield fastening part331is provided at a coupling part321provided at an outer circumference of the shield member320and the second shield fastening part330is provided inside the shield member320.

The first and second shield fastening parts331and332are fastened to the catching parts311formed in the printed circuit board310while not protruding.

Meanwhile, in a more detailed description of the first and second shield fastening parts331and332, first, as shown inFIG. 13, the first shield fastening part331includes a first fastening head331a, a first resilient space331b, and a first support331c. The first fastening head331ais provided at one end of the first shield fastening part331to be contracted or expanded so as to be fastened to or separated from the catching parts311. The first resilient space331bis formed at a center of the first fastening head331aso that the first fastening head331ais contracted or expanded. The first support331cconnects the coupling part321provided in the shield member320and the first fastening head331ato support them.

The second shield fastening part332includes a second fastening head332a, a second resilient space332b, and a second support332c. The second fastening head332ais provided at one end of the second shield fastening part332to be contracted or expanded so as to be fastened to or separated from the catching parts311located inside the shield member320. The second resilient space332bis formed at a center of the second fastening head332ato be contracted or expanded. The second support332cconnects an inside of the shield member320and the second fastening head332ato support them.

The second support332cof the second shield fastening part332is formed to be longer than the first support331cof the first shield fastening part331so as to be provided inside the shield member320.

Here, shapes and angles of the first and second fastening heads331aand332aare the same as in the first embodiment of the present disclosure, and thus a description thereof will be omitted herein.

Hereinafter, a process of fastening the shielding apparatus300according to the embodiment of the present disclosure will be described in more detail.

First, as shown inFIG. 13, the shield member320covers an outer circumference of the electronic device component170provided in the printed circuit board310.

Then, the first and second shield fastening parts331and332provided at an outside and an inside of the shield member320are inserted into entrances of the catching parts311formed in the printed circuit board310. That is, the first and second fastening heads331aand332aof the first and second shield fastening parts331and332are first inserted into the entrances of the catching parts311. Since the first and second resilient spaces331band332bare formed at centers of the first and second fastening heads331aand332ato be contracted or expanded by a resilient force, the first and second resilient spaces331band332bare contracted to become narrow when the first and second fastening heads331aand332acontact the entrances of the catching parts311.

In particular, since inclined insertion portions are formed at ends of the first and second fastening heads331aand332ato be inserted between the catching parts311, the inclined insertion portions are inserted into the entrances of the catching holes.

That is, the inclined insertion portions of the first and second fastening heads331aand332abecome close to each other and widths thereof become narrow, and shapes of the first and second fastening heads331aand332aare formed to be pointed. In this state, if the shield member320is further pushed, the first and second fastening heads331aand332apass between the catching parts311to be expanded in the catching parts311and become wide. Then, the inclined contact portions of the first and second fastening heads331aand332acontact insides of the catching parts311. The first and second fastening heads331aand332aare caught by the catching parts311to be fastened.

Thus, if the first and second fastening heads331aand332aare fastened to the catching parts311, the first and second shield fastening parts331and332having the first and second fastening heads331aand332aare fastened and fixed to the printed circuit board310.

Accordingly, the first and second shield fastening parts331and332are fixed to the printed circuit board310while not protruding, and the shield member320is fixed to the printed circuit board310.

Here, when the fastening of the first and second shield fastening parts331and332fastened to the printed circuit board310are released, the fastening releasing part160(seeFIG. 11A) is used. Here, a detailed description of the fastening releasing part160has been made in the first embodiment of the present disclosure, and thus will be omitted herein.

In this way, since the heads3aof the screws3(seeFIG. 1) and the clips30(seeFIG. 3) protrude from a printed circuit board2(seeFIG. 1) in the shield member using the related-art screws and clips, the space A1(seeFIG. 2) of the heads3aof the screws3or a space for the clips30is necessary during assembly of the shield member4. Accordingly, the volumes of the shield member4(seeFIG. 1) and the printed circuit board2become large, and assembly process time and manufacturing costs increase as the screws3and the clips for fixing the shield member4to the printed circuit board2are mounted.

Thus, in the first, second, and third embodiments of the present disclosure, the shield member can be fastened to the printed circuit board without using screws and clips and can be prevented from protruding from the printed circuit board. In addition, assembly process time and manufactured costs can be reduced.