KR20180003156U - Led flat lighting having slim frame - Google Patents

Abstract

The present invention relates to a light emitting diode flat panel luminaire for use in an indoor lighting of a house or a building, and more particularly, to an LED flat panel luminaire which includes an LED module, a light guiding panel for diffusing light emitted from the LED module, A flat panel illuminator comprising: And a bracket portion including at least one side surface of a fixing member for engaging with the frame.

Description

FIELD OF THE INVENTION [0001] The present invention relates to an LED flat light fixture having a thin frame,

The present invention relates to a light emitting diode flat panel luminaire used for indoor lighting in houses, buildings, and the like. More specifically, the present invention can improve not only convenience and efficiency of installation on a ceiling, but also tightness, To a surface emitting type flat panel luminaire.

Today, a variety of lighting fixtures are being used to provide light or illuminate objects in night or dark rooms. Especially, the lighting lamp that uses the light emitting diode (light emitting diode) as the light source has a lower power consumption than the incandescent lamp or the fluorescent lamp and saves the energy. In addition to the conventional light sources, the solid type point light source is robust, has a long life, In terms of characteristics, it is advantageous in terms of maintenance and the like.

However, an illumination light in the form of a simple combination of light emitting diodes emits optically clear monochromatic light, which causes uncomfortable glare and eye fatigue to the user. Therefore, when indirect lighting is used for direct illumination or indoors, A proper lens or a combination of the light guide plate is important.

In recent years, by appropriately maintaining the distance between the light emitting diode and the light guide plate for diffusing the light, the light of the point light source generated from the light emitting diode is converted into the light of the planar light source (light source having the light- LED flat panel luminaire has been developed in various forms, replacing existing fluorescent luminaire.

Such LED flat panel luminaire can generally be classified into edge-lighting type and direct-lighting type depending on the manner in which the light emitting diode is disposed and the direction in which the light is directly and emitted.

In the latter case, it is advantageous to make the product slim due to its relatively thin thickness, but it has disadvantages of reduced luminance and weight due to the light guide plate. In the latter case, when the thickness of the product is reduced, the LED dot (light emitting diode) There is a limit to the slimness because a separate space is required for using the SMPS.

In recent years, a product has been developed in which the power supply circuit is disposed on the same PCB as the light emitting diode (LED), and the thickness is reduced and the installation process is simplified. However, since the entire life of the power supply circuit is required, It has a tendency to maintain a long life characteristic and to require a thin-thickness side-emitting type product because it causes a result to reverse the long-life characteristic.

Examples of the conventional LED flat panel luminaire are disclosed in Korean Patent Publication No. 10-1221196, Korean Patent Laid-Open Publication No. 10-2011-0035354, Korean Patent Laid-Open Publication No. 10-2011-0066014, Korean Patent Laid- -2011-0113701 and Korean Patent Registration No. 10-1160816.

However, the LED flat panel luminaire uses a switching power supply (SMPS) that converts high-voltage alternating current into a low-voltage direct current due to the structural characteristics of the LED as a light source, A power supply unit (PSU) composed of a constant current circuit for supplying current is necessarily required.

Therefore, when the LED flat panel luminaire is installed on the ceiling, the PSU is fixed on the upper surface of the main body, and the rim of the main body is fixed to the ceiling with screws or the like while being embedded in the ceiling.

As described above, since the screw is fixed to the ceiling of the body of the LED flat panel luminaire, the mounting process of the flat panel luminaire is very troublesome and troublesome, and it takes much time and cost to work. There is a limit that the appearance of the aesthetic feeling is reduced due to the exposure of the screw hole.

Especially, when replacing old fluorescent lighting fixtures or aged or broken LED flat lighting fixtures, the screws that keep the body fixed on the ceiling are separated and removed, and then the replacement LED flat lighting fixture is brought into close contact with the ceiling The workability and efficiency are significantly lowered because the screws must be tightened with each other and fixed.

Korean Utility Model Registration No. 20-0447906 proposes a lighting device in which a bracket is first installed on a ceiling and a light emitting diode module is inserted and fixed to the ceiling. However, after the bracket is fixed to the ceiling with a screw, The diode module must be fixed with four bolts and nuts, and the hole must be punched through the ceiling with a hole of 200mm width. The PSU must be inserted into the ceiling so that the ceiling is closed with a single plywood. In the case of a house, the installation process is complicated and uncomfortable as well as the operation time is long because the ceiling must be damaged.

Patent Document 1: Korean Patent No. 10-1533918 (June 29, 2015) "LED flat panel luminaire" Patent Document 2: Korean Patent Laid-Open No. 10-2016-0007902 (Jan. 21, 2016) "Structure of LED Flat Light Fixture"

The object of the present invention is to provide an LED flat panel luminaire capable of improving the ease of installation and efficiency as well as the fastness of installation on the ceiling.

In order to realize the object of the present invention, the LED flat panel lighting apparatus according to the embodiment of the present invention includes an LED module, a light guide panel for diffusing light emitted from the LED module, A flat illumination unit including a frame; And a bracket portion including at least one side surface fixing member for engaging with the frame.

At this time, the frame includes an outer frame forming an outer shape of the lighting device; And an inner frame disposed inside the outer frame and engaged with the fixing member.

At this time, the inner frame includes a locking groove for engaging with the fixing member; And a guide slit for guiding a mating position of the fixing member, wherein the fixing member includes: a locking pin inserted into the locking groove formed in the inner frame; And a guide pin fitted in the guide slit.

At this time, the engaging pin has a surface inclined downward inwardly at an end portion inserted into the engaging groove, and when the engaging groove is inserted into the engaging groove, the engaging pin is temporarily moved in the inward direction And when the insertion into the latching groove is completed, the inner frame is returned to the original position and the inner frame is hooked and fixed.

In addition, the fixing member may include: a first supporting portion for supporting an end portion of the engaging pin having an inclined surface; And a second support portion for supporting the other end portion of the retaining pin.

The first supporting portion and the second supporting portion each have a supporting hole having a size corresponding to the diameter of the engaging pin to support the engaging pin, and the engaging pin is engaged with the end portion where the inclined surface is provided A protrusion having a diameter larger than the diameter of the retaining pin may be provided at a position spaced apart from the retaining pin by a predetermined distance to prevent the retaining pin from being separated from the first retaining portion.

In addition, the fixing member may further include a spring for applying elasticity to the latching pin, and the spring may be disposed between the projection and the second supporting portion.

The first support portion, the second support portion, and the guide pin may be integrally formed with the bracket portion by press-working a plate-like metal member constituting the bracket portion.

According to the LED flat panel luminaire according to the embodiment of the present invention,

First, the LED flat panel luminaire can be fixed to the ceiling surface with simple operation.

Secondly, since the guide slit has a shape in which the upper side widens in the V-shape, the guide pin can be easily fitted in the correct position.

Third, since the first support portion, the second support portion, and the guide pin are integrally formed with the bracket portion by press-working the plate-like metal member constituting the bracket portion, the positions of the guide pin and the engagement pin can be precisely arranged, Do.

Fourth, since the bracket portion fixes the inner frame constituting the flat panel illumination portion by the hooking method in the lateral direction, it is possible to dispose the member fixing the flat panel illumination portion in the vertical direction. Therefore, the width of the frame can be made very thin due to the displacement of the vertical direction fixing member.

FIG. 1 is a perspective view partially showing an LED flat panel luminaire according to an embodiment of the present invention.
Fig. 2 is an enlarged perspective view of the fixing member portion shown in Fig. 1. Fig.
3 is an enlarged perspective view of a portion corresponding to the fixing member in the flat panel illumination portion.
4 is a sectional view showing a state where the fixing member is engaged with the inner frame.
5 is a perspective view of the fixing member in a state of being engaged with the inner frame.
6 is a plan view of the LED flat panel luminaire according to the embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. Further, detailed descriptions of known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated.

FIG. 1 is a perspective view showing a part of the LED flat panel luminaire according to the embodiment of the present invention, FIG. 2 is an enlarged perspective view of the fixing member shown in FIG. 1, Fig. 4 is a cross-sectional view showing a state where the fixing member is engaged with the inner frame, and Fig. 5 is a perspective view showing the state where the fixing member is engaged with the inner frame.

1 to 5, the LED flat panel luminaire L according to the present invention includes a flat lighting unit 100 and a bracket unit 200.

The flat panel illumination unit 100 includes an LED module, a light guide panel for diffusing light emitted from the LED module, and a frame for accommodating the LED module and the light guide panel. For the sake of brevity, the identification of the LED module and the light-guide panel is omitted.

The bracket part 200 includes at least one side surface thereof with a fixing member 210 engaging with the frame. 1 to 4 show an example in which two fixing members 210 are provided on two opposite surfaces.

The frame includes an outer frame 110 and an inner frame 120 which are disposed inside the outer frame 110 and form an outer shape of the lighting apparatus and engage with the fixing member 210.

The outer frame 110 forms an outer shape of the LED flat panel luminaire L and accommodates the LED module and the light guide panel.

The inner frame 120 includes an engagement groove 121 and a guide slit 122.

The engaging groove 121 is a groove for engaging with the fixing member 210, specifically, a groove into which the engaging pin 211 included in the fixing member 210 is inserted.

The guide slit 122 is a slit for guiding the engagement position of the fixing member 210, specifically, a slit into which the guide pin 212 included in the fixing member 210 is fitted. The guide slit 122 has a shape in which the upper side widens into a V shape. So that the guide pin 212 can be easily inserted into the correct position.

The fixing member 210 includes an engagement pin 211 and a guide pin 212.

The engaging pin 211 is a pin inserted into the engaging groove 121 formed in the inner frame 120.

The guide pin 212 is a pin that fits in the guide slit 122. The guide pin 212 is inserted into the guide slit 122 so that the engaging pin 211 can be inserted into the engaging groove 121 Guide.

The engaging pin 211 has a surface 211a inclined downward inwardly at an end portion of the engaging groove 121 inserted into the engaging groove 121. [ When the engaging pin 211 is inserted into the engaging groove 121 by the inclined surface 211a, it is temporarily moved inward by the force in the engaging direction at the upper end portion of the inner frame 120. [ When insertion into the latching groove 121 is completed, the inner frame 120 is returned to the original position and the inner frame 120 is hooked and fixed.

That is, when the engaging pin 211 is moved inward by the inclined surface 211a and the end of the engaging pin 211 is aligned with the engaging groove 121, a spring (not shown) for applying elasticity to the engaging pin 211 215, so that the engaging pin 211 is fitted in the engaging groove 121. As shown in Fig.

The fixing member 210 further includes a first support portion 213, a second support portion 214, and a spring 215.

The first support portion 213 supports the end portion of the engagement pin 211 that is provided with the inclined surface 211a and the second support portion 214 supports the other end portion of the engagement pin 211 ).

The first support portion 213 and the second support portion 214 have support holes 213h and 214h each having a size corresponding to the diameter of the engagement pin 211 to support the engagement pin 211. In other words, the support pins 213h and 214h are supported in such a manner that the engagement pins 211 are fitted.

Since the engaging pin 211 is supported by the first supporting portion 213 and the second supporting portion 214, the engaging pin 211 is movable in the horizontal direction.

The engaging pin 211 has a protruding portion 211b having a diameter larger than the diameter of the engaging pin 211 at a position spaced apart from the end portion where the inclined surface 211a is provided, 1 support portion 213 from being detached.

The spring 215 is disposed between the projection 211b and the second support 214. [ Accordingly, the spring 215 applies elasticity to the hooking pin 211, and when the hooking pin 211 is inserted into the hooking groove 121, the spring 215 returns to the original position, Let's do it.

The outer frame 110 has a groove 111 for pressing the engaging pin 211 at a position corresponding to the engaging groove 121 formed in the inner frame 120. Therefore, the latching pin 211 can be pushed out of the latching groove 121 only by inserting an object corresponding to the diameter of the groove 111, so that the flat lighting unit 100 can be easily removed from the bracket unit 200.

The first support portion 213, the second support portion 214 and the guide pin 212 may be integrally formed with the bracket portion by press-working a plate-shaped metal member constituting the bracket portion 200. According to the integral machining, it is possible to precisely form the positioning position of the guide pin 212 and the engaging pin 211, and it is also advantageous in reducing the manufacturing cost.

6 is a plan view of the LED flat panel luminaire according to the embodiment of the present invention. As described above, since the bracket part 200 fixes the inner frame 120, which constitutes the flat panel illumination part 100, in the lateral direction, it is possible to dispose the member fixing the flat panel illumination part 100 in the vertical direction.

As described above, since the LED flat panel luminaire L according to the present invention does not require the vertical direction fixing member, the width D of the outer frame 110 can be made very thin.

It will be understood by 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 in the following claims It will be possible.

L: LED flat panel luminaire
100: Flat plate illuminator
110: outer frame
120: inner frame
200: Bracket part
210: Fixing member

Claims (8)

An LED module, a light guide panel for diffusing light emitted from the LED module, and a frame accommodating the LED module and the light guide panel; And
And a bracket portion including at least one side surface of a fixing member for engaging with the frame. The method according to claim 1,
The frame includes:
An outer frame forming an outer shape of the lighting device; And
And an inner frame which is disposed inside the outer frame and engages with the fixing member. The method of claim 2,
Wherein the inner frame comprises:
An engaging groove for engaging with the fixing member; And
And a guide slit for guiding an engagement position of the fixing member,
Wherein:
An engaging pin inserted into the engaging groove formed in the inner frame; And
And a guide pin fitted in the guide slit. The method of claim 3,
Wherein,
And an inclined surface inclined downward inwardly is formed at an end portion inserted into the engaging groove so that when the engaging groove is inserted into the engaging groove, the upper end portion of the inner frame temporarily moves inward by a force in the engaging direction, And returning to the original position when the insertion is completed, thereby fixing the inner frame. The method of claim 4,
Wherein:
A first support portion for supporting an end portion of the retaining pin having an inclined surface;
And a second support portion for supporting the other end portion of the latching pin. The method of claim 5,
The first support portion and the second support portion each have a support hole having a size corresponding to the diameter of the engagement pin to support the engagement pin,
Wherein,
And a protrusion having a diameter larger than the diameter of the latching pin at a position spaced apart from the end portion where the inclined surface is provided to prevent the latching pin from being separated from the first support portion. Lighting fixtures. The method of claim 6,
Wherein:
Further comprising a spring for applying elasticity to the latching pin,
And the spring is disposed between the protrusion and the second support portion. The method of claim 5,
Wherein the first support portion, the second support portion,
Wherein the bracket portion is formed integrally with the bracket portion by press-working a plate-like metal member constituting the bracket portion.

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