KR101821150B1 - LED Lighting Fixture - Google Patents

Abstract

The present invention provides a developing device comprising: a housing in which a developer to be purified is formed by forming a receiving space therein; There is provided a high-purity filtration apparatus comprising a cover coupled to a housing space of the housing so as to be capable of opening and closing and having a filter for filtering developer, and a first coupler for coupling the cover and the housing in a one- .

Description

{LED Lighting Fixture}

The present invention relates to an LED lighting device installed on a ceiling or a wall surface to provide illumination to the inside or outside of a room, and more particularly to an LED lighting device with improved light efficiency and uniformity of light.

In general, indoor lighting includes a living room, a lamp, a kitchen, and a toilet, and these use incandescent lamps and fluorescent lamps. Fluorescent lamps are also commonly used as light sources for lighting signage.

Currently, various types of fluorescent lamps, three-wavelength lamps, and LED lights are installed in various forms from incandescent lamps using filaments, and the lighting industry is continuously developing.

Meanwhile, compared with the above-described three-wavelength lamp, the light emitting diode (LED), which is a next generation light source that can be used semi-permanently and has excellent energy saving effect compared to the existing light source, is firmly established in the lighting industry.

As the luminance (brightness) problem, which was the limit of the illumination using the LED, has recently been greatly improved, the application market has spread to the entire industry and the full-scale LED is being applied.

These LEDs have excellent characteristics such as low power consumption, which is an element that forms electrode terminals on both sides of p-type and n-type junctions, and when a voltage is applied between the terminals, the current flows and the light is emitted near the pn junction. Has been developed. It is classified into an edge type and a direct type according to the layout of the LED. In the edge type, LEDs are disposed only at the corner portions of the panel, and the direct type LEDs are disposed over the entire panel. In particular, in the case of the edge type, it is expected that the structure of the edge type rather than the direct type is expected to become popular because the thickness of the panel can be further reduced and the power consumption is also small. A technique related to a frame coupling structure of an illumination using such an LED is described in detail in Application No. 10-2010-0133543.

However, these LED lights have limitations in reducing the overall appearance thickness. In addition, since the lifetime of the LED is equivalent to about 50,000,000 hours, components of a converter such as a capacitor, for example, a capacitor that converts power to an LED, have a much shorter lifetime than an LED, .

In addition, it is difficult to attach and detach the LED light from the ceiling or the wall surface, which increases the working time and increases the costs.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide an LED lighting device which can be mounted on an installation surface by simultaneously joining upper and lower surfaces of a lighting module, It has its purpose.

According to an aspect of the present invention, there is provided an illumination module comprising: a light guide plate for uniformly dispersing light of an LED unit element as a light source; a diffusion plate and a heat radiation sheet for diffusing reflected light; A first frame having an engaging groove formed along a longitudinal direction thereof so as to insert one side edge portion of the lighting module and a second side frame portion having the same structure as the first frame and adjacent to one side edge portion of the lighting module And an upper surface of a vertex at which one side edge portion of the first module and the second edge portion of the second frame meet at a predetermined angle, And a corner bracket supporting a part of the lower surface of the first frame and a portion of the lower surface of the first frame and the lower surface of the second frame.

The corner bracket includes an upper surface supporting portion for supporting a top surface of the vertex of the lighting module, an upper surface of the first frame and a top surface of the second frame, and an upper surface supporting portion formed integrally with the upper surface supporting portion, And a side support portion that integrally connects the upper surface support portion and the lower surface support portion and covers one side end surface of the first frame and the second frame.

The corner bracket may be formed with a fastening hole through which the upper surface supporting portion, the side supporting portion and the lower surface supporting portion are integrally passed so as to be directly fixed to the ceiling.

The supporting portion includes an auxiliary supporting portion protruding from an inner corner portion of the first frame and the second frame to support a bottom surface of the lighting module corresponding to the height of the coupling groove, And an extension supporting part formed with a wire connecting hole formed to connect a wire connecting between the ceiling and the corner bracket.

The support portion may include a fastening hole formed to fasten the first frame or the second frame to the fastener and a heat dissipation hole configured to allow heat radiated from the illumination module to be discharged to the outside through the lower support portion.

The side support portion may include a guide groove formed such that a part of the outer surface of the first frame or the second frame protrudes to the lower side of the lower support portion.

Wherein the outer frame comprises a top surface member forming an upper surface of the first frame or a second frame, a side member bent from the top surface member to form a side surface, And a fastening member having a fastening hole formed along the longitudinal direction so that the corner bracket is fastened.

The outer frame may include a receiving member formed with a receiving groove for receiving a power line of the LED unit element below the coupling groove of the upper surface member.

The outer frame may include a lap member that selectively shields the open portion of the receiving member to cover the power line.

Wherein the outer frame includes a coupling member having a coupling hole formed along the longitudinal direction so that the corner bracket is coupled with the coupling member, a top surface member protruded above the coupling member to be an upper surface of the coupling groove, A cover member for selectively covering an upper portion or a side portion of the coupling member or the upper surface member, and a receiving member having a receiving groove for receiving a power line of the LED unit element below the coupling groove.

The outer frame may include a stopper interposed between the cover member and the upper surface member to prevent the cover member from opening on the upper surface member.

The outer frame may include an elastic member interposed between the cover member and the fastening member to provide an elastic force in a direction in which the cover member is opened or closed.

And a design cover which is formed in a shape corresponding to the outer shape of the outer frame and in which at least one of a pattern, a symbol, an image, and a hue of a predetermined pattern is printed or imprinted on the outer circumferential surface and selectively bonded to the outer circumferential surface of the outer frame .

According to the LED illumination device of the present invention,

First, the upper and lower surfaces of the lighting module can be supported or coupled simultaneously through the outer frame and the corner bracket,

Second, it is easy to attach and detach because it is fastened through the bracket fixed to the mounting surface,

Third, the outer frame has a bolt fastening structure,

Fourth, the work required for maintenance can be performed through the cover member,

Fifth, the exterior decoration of the outer frame can be designed according to the user's demand, so that the lighting interior of various atmosphere can be effected.

1 is a perspective view illustrating an LED illumination device according to an embodiment of the present invention.
2 is an exploded perspective view showing the LED illumination device shown in Fig.
3 is a perspective view showing a corner bracket of the LED illumination device shown in Fig.
4 is a plan view showing a corner bracket of the LED illumination device shown in Fig.
5 is a perspective view showing an outer frame of the LED illumination device shown in Fig. 2 from above.
Fig. 6 is a perspective view showing an outer frame of the LED lighting device shown in Fig. 5 from the bottom. Fig.
7 is a reference view showing a state in which a design cover is coupled to an outer frame of the LED illumination device shown in Fig.
8 is a perspective view showing a state in which the cover member of the LED illumination device according to another embodiment of the present invention is closed.
Fig. 9 is a perspective view showing a state in which the cover member of the LED illumination device shown in Fig. 8 is opened. Fig.
10 is a cross-sectional view showing an outer frame of the LED illumination device shown in Fig.
11 is a perspective view showing a bracket for fixing the LED illumination device shown in Fig. 1 on a mounting surface.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It should be noted that the drawings denoted by the same reference numerals in the drawings denote the same reference numerals whenever possible, in other drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. And certain features shown in the drawings are to be enlarged or reduced or simplified for ease of explanation, and the drawings and their components are not necessarily drawn to scale. However, those skilled in the art will readily understand these details.

FIG. 1 is a perspective view illustrating an LED illumination apparatus according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the LED illumination apparatus shown in FIG. 1.

Referring to FIGS. 1 and 2, an LED illumination apparatus 100 according to an embodiment of the present invention includes a lighting module 110 as a light source, And an outer frame 120 coupled to both ends of the outer frame 120 and coupled to the outer frame 120 at the same time And a corner bracket 130.

Here, the lighting module 110 is characterized in that upper and lower surfaces are supported at the same time through the outer frame 120 and the corner bracket 130. Although the LED illumination apparatus 100 shown in FIG. 1 is formed in a rectangular shape, the shape of the outer frame 120 and the corner bracket 130 may be changed to be circular, triangular, or polygonal, to be.

2, the lighting module 110 is used as a light source with the LED unit unit 114 emitting light, and a light guide plate (light guide plate) for uniformly dispersing the emitted light of the LED unit unit 114, A diffusion plate 111 for diffusing the light reflected from the light guide plate 112 to the outside and a panel 113 on which the LED unit device 114 or the LED unit device 114 are coupled And a heat-radiating sheet 115 for discharging generated heat to the outside.

Although not shown in the drawing, the converter for converting the power supplied to the LED unit element 114 may be separately attached to the back surface of the heat radiation sheet 115 or the side surface of the outer frame 120.

Further, the illumination module 110 may be implemented as a direct type or an edge type that provides light as a light source using the LED element 114, and more preferably an edge type. Therefore, since the lighting module 110 is formed as an edge type, its thickness is thin, maintenance is easy, and economical efficiency can be obtained.

The outer frame 120 is disposed at an edge portion of the lighting module 110 as an injection or extrusion molded frame made of a steel material. Since the corner of the lighting module 110 is partially inserted into the coupling groove 121 of the outer frame 120, the assembly process of the lighting module 110 is not necessary, There is an effect that can be lowered. The outer frame 120 includes a first frame 120a disposed at one side edge of the lighting module 110 and a second frame 120b disposed at the other side edge adjacent to the one side edge. When the lighting module 110 is formed in a square shape, it may further include a third frame and a fourth frame.

The corner bracket 130 has the first frame 120a coupled to one side and the second frame 120b coupled to the other side. At this time, the vertex portion of the lighting module 110 coupled to the coupling grooves 121 of the first frame 120a and the second frame 120b is partially inserted into the corner bracket 130 and coupled.

Therefore, the LED lighting apparatus 100 is assembled by disposing the four frames of the outer frame 120 and the corner bracket 130 together and surrounding the corner of the lighting module 110. Further, the LED lighting apparatus 100 having various shapes can be configured through at least two frames and the corner brackets 130 according to the shape, structure, or scale of the lighting module 110.

Fig. 3 is a perspective view showing a corner bracket of the LED illumination device shown in Fig. 2, and Fig. 4 is a plan view showing a corner bracket of the LED illumination device shown in Fig.

3 and 4, the corner bracket 130 includes a top frame 120a, a top frame 120b supporting an upper surface of one end of the second frame 120b and a top surface of a vertex of the lighting module 110, A lower supporting part 132 disposed in parallel to the upper supporting part 131 and supporting one lower end of the first frame 120a and the second frame 120b, And a side supporting portion 133 that integrally connects the lower surface supporting portion 132 and the side surfaces of the first frame 120a and the second frame 120b.

The upper surface supporting portion 131 and the lower surface supporting portion 132 are integrally formed by the side supporting portions 133 and are integrally formed with the upper surface of the first frame 120a, the second frame 120b, At the same time.

A coupling hole 131a penetrating through the side support portion 133 and the bottom support portion 132 is formed on the upper surface support portion 131. [ The fastening hole 131a is fastened by a fastener when the LED lighting apparatus 100 is installed on the mounting surface through the corner bracket 130. The fastening hole 131a is formed in the corner bracket 130, A separate cap for shielding the upper portion of the fastening hole 131a on the upper surface support portion 131 may be coupled. Thereby, since the fastening hole 131a is not visible, the appearance can be formed more beautifully.

A distance corresponding to at least the height of the lighting module 110 is formed between the upper surface support portion 131 and the lower surface support portion 132.

An auxiliary support portion 136 for supporting the lower surface of the vertex portion of the illumination module 110 is provided on the upper surface of the support portion 132. The support portion 132 integrally extends to the inside of the lower support portion 132, And a wire connecting hole 138 is formed to connect a wire connecting between the ceiling and the ceiling.

The auxiliary supporting portion 136 is bent at an angle corresponding to the angle of the vertex portion of the lighting module 110 and protruded from the upper surface of the lower supporting portion 132. Therefore, a gap corresponding to the height of the lighting module 110 is formed between the lower surface of the upper surface support portion 131 and the upper surface of the auxiliary support portion 136.

When one end of the first frame 120a and one end of the second frame 120b are coupled to the corner bracket 130, the first frame 120a and the second frame 120b A passage through which wiring can pass is formed. In addition, the heat generated in the lighting module 110 can be discharged to the outside since the heat dissipation hole 135 formed on the lower support portion 132 is positioned on the passage.

The first frame 120a and the second frame 120b are fastened by the fastener on the lower supporting part 132 and the first frame 120a or the second frame 120b is fastened on the lower supporting part 132. [ A plurality of fastening holes 134 are formed so that fasteners to be connected can be inserted. The detailed structure in which the fastener inserted into the fastening hole 134 is engaged with the outer frame 120 will be described later.

The side support portion 133 provides a function of partially covering one side surface of each of the first frame 120a and the second frame 120b while the first frame 120a Or a guide groove 133a is formed so that the second frame 120b can be partially inserted. The guide groove 133a is formed between the outer side surface of the lower surface support portion 132 and the inner side surface of the side surface support portion 133 and the first and second frames 120a, 120b can be made more rigid.

FIG. 5 is a perspective view showing an outer frame of the LED lighting device shown in FIG. 2 from above, and FIG. 6 is a perspective view showing an outer frame of the LED lighting device shown in FIG.

One end of the first frame 120a is coupled to one side of the corner bracket 130 and one end of the second frame 120b is coupled to the other side of the outer frame 120. Since the structures of the first frame 120a and the second frame 120b are the same, the first frame 120a will be described in detail as an example.

The first frame 120a includes a top surface member 122 that forms an upper surface, a side surface member 123 that is bent from the top surface member 122 to form a side surface and the top surface member 122 and the side surface member 123 A fastening member 124 having a fastening hole 125 formed along the longitudinal direction so as to fasten the corner bracket 130 and a fastening member 124 having a fastening member 124 extending in a direction parallel to the upper surface member 122, 124, and a receiving member 126 in which a receiving groove 127 is formed.

The upper surface member 122 forms the upper surface of the outer frame 120 and corresponds to a rim portion of the lighting module 110. The side member 123 is formed so as to be integrally bent from the upper surface member 122 as a portion corresponding to the overall height of the LED lighting apparatus 100. Therefore, the top surface member 122 and the side surface member 123 are formed in an approximately L-shaped cross-section. On the side member 123, a bracket supporting groove 123a is formed along the longitudinal direction. A plurality of fixing holes 123b are formed on the bracket supporting groove 123a. The function of the bracket support groove 123a and the fixing hole 123b will be described later.

The fastening member 124 has one end extending in the vertical direction from the inner center of the upper surface member 122 and the other end being connected in the vertical direction to the inner center of the side member 123, Is formed to engage the fastener in the direction of the top surface member 122. The fastening member 124 is bent in a U-shape at its one end face, and the fastening holes 125 are formed therein. The fastening holes 125 are spaced from each other by an interval Lt; / RTI > Therefore, the coupling interval of the outer frame 120 on the lower portion 132 can be fluidically adjusted, and no separate tapping is required on the coupling hole 125, thereby reducing the processing cost and time. have.

The fastening member 132 and the fastening member 124 are fastened to each other while fastening the fastener inserted through the fastening hole 134 into the fastening hole 125. Accordingly, The outer frame 120 is engaged.

The receiving member 126 is disposed between the coupling groove 121 and the receiving groove 127 so that one surface thereof supports the lighting module 110 and the other surface thereof accommodates the wiring of the LED unit element 114, .

At this time, on the receiving member 126, the jaw member 128 is coupled so as to selectively shield the receiving groove 127. The jaw member 128 is coupled to the receiving groove 127 in a detent manner and is slidably coupled along the longitudinal direction of the receiving groove 127. Therefore, it is possible to arrange the wires connecting the respective LED unit elements 114 by shielding the receiving groove 127 partially or wholly.

7 is a reference view showing a state in which a design cover is coupled to an outer frame of the LED illumination device shown in Fig.

Referring to FIG. 7, the outer frame 120 may be formed of a steel material so as to ensure the structural rigidity of the LED illumination device 100 and to maximize the heat radiation performance of the LED unit device 114 desirable. Of course, it can be realized by other materials having structural rigidity and heat radiation performance.

The outer frame 120 formed of a steel material can process various colors and design patterns through a separate process. However, it is possible to change the design of the outer frame 120 in accordance with the individual demand according to the taste of the consumer A detachable design cover 140 is coupled to the outer peripheral surface of the outer frame 120.

The design cover 140 can be manufactured by printing or engraving with at least one of a pattern, a symbol, an image, and a hue, and since a myriad of methods and patterns can be applied, It is possible to make an order according to the design of the LED lighting apparatus 100. After the installation of the LED illumination apparatus 100 is completed, the design cover 140 can be replaced. Therefore, the design of the installed LED lighting apparatus 100 can be changed, and illumination of various types of atmosphere can be produced.

8 is a perspective view showing a state in which the cover member of the LED illumination device according to another embodiment of the present invention is closed, FIG. 9 is a perspective view showing a state in which the cover member of the LED illumination device shown in FIG. 10 is a cross-sectional view showing an outer frame of the LED illumination device shown in Fig.

Referring to FIGS. 8 to 10, the LED illumination device 200 according to another embodiment of the present invention includes an outer frame of another structure.

The outer frame 220 includes a top surface member 222 for supporting an upper surface of a corner of the lighting module (see FIG. 2) 110 and a coupling groove 221 disposed on the lower side of the top surface member 222, A receiving member 223 having a receiving groove 224 formed on the other side thereof and a receiving hole 223 formed on the other side of the receiving member 223 so that one side is bent from the receiving member 223 to form a coupling hole 225a therein, And a cover member 226 rotatably coupled to the other side of the coupling member 225 to selectively open or close the upper or side of the coupling member 225 or the upper surface member 222 do.

The structure of the housing member 223 and the fastening member 225 is partially the same as in the first embodiment, and the structure of the cover member 226 will be described in detail.

One end of the cover member 226 is disposed on the upper surface of the upper surface member 222 while the other end of the cover member 226 is engaged on the coupling member 225 in a closed state.

The coupling member 225 is formed with an interference groove 225b on the outer side of the coupling hole 225a and a support groove 226a is formed on the other end of the cover member 226 to face the interference groove 225b. . An elastic member 227 elastically deformed in its outer shape is inserted between the interference groove 225b and the support groove 226a. A stopper 228 is provided between the lower surface of the cover member 226 and the upper surface of the upper surface member 222 to restrict opening and closing of the cover member 226.

The cover member 226 forms an outer shape of an upper surface or a side surface of the outer frame 220 and provides a function of selectively shielding the upper surface of the upper surface member 222 or the coupling member 225. At this time, a replaceable consumable item such as a converter (not shown) is disposed in the cover member 226, thereby eliminating the need to remove the entirety of the LED lighting apparatus 200 for replacing the converter .

The height of the elastic member 227 is changed between the interference groove 225b and the support groove 226a as the cover member 226 is opened and closed. When the cover member 226 is opened and closed, And a state in which each state is resiliently supported. The elastic member 227 is provided on the interference groove 225b or the support groove 226a so as to prevent slippage along the longitudinal direction of the interference groove 225b or the support groove 226a, 226b may be formed.

The stopper 228 also functions to prevent the cover member 226 from opening abnormally on the top surface member 222 by using a push switch, a magnetic member, or the like.

Furthermore, the cover member 226 may be coupled with an electrical design cover 140.

11 is a perspective view showing a bracket for fixing the LED illumination device shown in Fig. 1 on a mounting surface.

Referring to FIG. 11, the LED illumination device is fastened in a side fixing manner through a bracket fixed on a mounting surface.

First, the bracket 150a structure as shown in (a) is a structure in which the bracket 150 is fixed on the mounting surface and the first supporting member 151 protruding from both ends is fixed on the side member (see FIG. 6) To be inserted into the formed bracket support groove (refer to FIG. 6, 123a). There is an effect that the LED illumination device can be installed in a one-touch manner.

Also, in the structure of the bracket 150b shown in (b), the bracket 150b is separated on both sides and fastened on the mounting surface. This is advantageous in that it can be installed including the case where the external shape of the LED illumination device is irregular or is formed in a large size.

A second support member 152 is formed at an end of each bracket 150b and has a coupling structure similar to that of the bracket 150a of (a) shape. A through hole 152a is formed on the second support member 152 and fastened to the fixing hole 123b of the side member by a fastener. Thus, a more rigid supporting force can be provided, and it is possible to form a beautiful appearance because it is fastened to a portion not visible to the user's eyes.

In the structure of the bracket 150c as shown in (c), both ends of the bracket 150c are bent in a substantially 'C' shape so that the LED illumination device can be coupled in a sliding manner. This structure has a simple structure and is easy to install and can control a predetermined gap in a sliding direction by a fluidity. Although not shown in the drawing, the bracket 150c as shown in FIG. 7C may also be fastened to the EL display device using a fastener. In addition, the LED lighting device may be installed to be detachable using a rail bracket fixed on a mounting surface such as a ceiling.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken in conjunction with the present invention. But can be carried out within a range that does not deviate. Accordingly, such modifications are also considered to be within the scope of the present invention, and the true scope of protection of the present invention should be determined by the technical idea of the following claims.

100, 200: LED illumination device 110: illumination module
120, 220: outer frame 130: corner bracket
140: Design Cover 150: Bracket

Claims (13)

A diffusion plate disposed on the front surface of the light guide plate to diffuse the light reflected from the light guide plate forward; and an LED unit unit coupled to a back surface of the light guide plate, A lighting module including a panel and a heat-radiating sheet coupled to a back surface of the panel;
A first frame having an engaging groove formed along a longitudinal direction thereof so as to insert one side edge portion of the lighting module and a second side frame portion having the same structure as the first frame and adjacent to one side edge portion of the lighting module An outer frame having a second frame to be inserted and
The lighting module according to any one of claims 1 to 3, further comprising: a first frame having a first edge and a second frame at a predetermined angle, And a corner bracket for supporting a top surface and a bottom surface portion of one end of each of the frame and the second frame,
Wherein the corner bracket includes an upper surface support portion supporting an upper surface of a vertex of the illumination module, an upper surface of one end of the first frame and a lower surface of the second frame, and an upper surface support portion integrally formed with the upper surface support portion, And a side support portion that integrally connects the upper surface support portion and the lower surface support portion and covers one side end surface of the first frame and the second frame,
Wherein the supporting portion includes a fastening hole formed to fasten the first frame or the second frame to the fastener and a heat dissipating hole formed to discharge heat radiated from the lighting module to the outside through the lower supporting portion. Lighting device. delete The method according to claim 1,
The corner bracket
Wherein the upper surface supporting portion, the side supporting portion, and the lower surface supporting portion are integrally formed with a fastening hole so as to be directly fixed to the ceiling. The method according to claim 1,
[0034]
An auxiliary support portion protruding from an inner edge portion of the first frame and the second frame to support a bottom surface of the lighting module corresponding to the height of the coupling groove;
And an extension support portion extending to the inside of the lower surface support portion and having a wire connection hole formed therein for connecting wires connecting the ceiling and the corner bracket. delete The method according to claim 1,
The side-
And a part of the outer surface of the first frame or the second frame protrudes to the lower side of the lower surface supporting portion. The method according to claim 1,
In the outer frame,
A top surface member forming an upper surface of the first frame or the second frame,
A side member bent from the upper surface member to form a side surface,
And a fastening member disposed at an adjacent corner portion of the upper surface member and the side member and having fastening holes formed along the longitudinal direction so as to fasten the corner brackets. The method of claim 7,
In the outer frame,
And a housing member formed with a receiving groove for receiving the power supply line of the LED unit element below the coupling groove of the top surface member. The method of claim 8,
In the outer frame,
And a ceiling member covering the power line by selectively shielding the open portion of the housing member. The method according to claim 1,
In the outer frame,
A fastening member having a fastening hole formed along the longitudinal direction so that the corner bracket is fastened;
A top surface member protruding upward from the coupling member and serving as an upper surface of the coupling groove,
A cover member rotatably coupled to the coupling member and selectively covering the upper portion or the side portion of the coupling member or the upper surface member,
And a housing member formed with a receiving groove for receiving the power supply line of the LED unit element below the coupling groove. The method of claim 10,
In the outer frame,
And a stopper interposed between the cover member and the upper surface member to prevent the cover member from being opened on the upper surface member. The method of claim 10,
In the outer frame,
And an elastic member interposed between the cover member and the fastening member to provide an elastic force in a direction in which the cover member is opened or closed. The method of claim 7 or claim 10,
And a design cover which is formed in a shape corresponding to the outer shape of the outer frame and in which at least one of a pattern, a symbol, an image, and a hue of a predetermined pattern is printed or imprinted on the outer circumferential surface, And a light source for emitting the light.

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