KR20150096918A

KR20150096918A - Fluorescent lamp type led lighting device

Info

Publication number: KR20150096918A
Application number: KR1020140017808A
Authority: KR
Inventors: 박현용; 성병권
Original assignee: 주식회사 린노
Priority date: 2014-02-17
Filing date: 2014-02-17
Publication date: 2015-08-26

Abstract

The present invention relates to a fluorescent lamp type LED lighting device. A fluorescent lamp type LED lighting device according to the present invention includes a heat radiation frame formed on one side of a fixing surface; a circuit board which has separated LEDs and is fixed to the fixing surface of the heat radiation frame; a diffusion cover which is arranged on the upper side of the circuit board and diffuses light emitted from the LED; an end cap which is separable from both ends of the heat radiation frame; and a fixing part which fixes the end cap to the heat radiation frame. The end cap comprise a first end cap having a first connection terminal for a first standard, and a second end cap having a second connection terminal for a second standard different from the first standard. Either the first end cap or the second end cap is selectively combined with an end of the heat radiation frame.

Description

FLUORESCENT LAMP TYPE LED LIGHTING DEVICE

The present invention relates to a fluorescent lamp type light fixture, and more particularly, to a fluorescent lamp type light fixture which comprises a light emitting body having a high luminous efficiency, and an end cap selectively used according to an installation standard to improve luminous efficiency and product compatibility The present invention relates to a fluorescent lamp type LED lighting device.

Generally, a fluorescent lamp is a tube filled with a mercury vapor and a slight inert gas in a vacuum tube. When a high pressure is applied to both ends of the tube, the tube is broken and an arc is generated by gas discharge.

In other words, the electrons emitted from the cathode fly to the anode by the high pressure, and the electron moves to the anode due to the high-speed movement of the electrons. The electrons get a great kinetic energy and collide with the mercury and the inert gas in the tube during the flight. The energy of the electrons is transferred to the gas in the tube and the gas is excited to move the electrons of the gas to the higher energy level. The excited electrons stay for a lifetime (several ns) Level, releasing energy corresponding to the level difference.

At this time, the emission wavelength is an ultraviolet region, which stimulates the fluorescent substance applied on the inner wall of the tube to emit visible light.

When the light is emitted as described above, the tube exhibits a negative resistance characteristic and a large current flows, and a ballast, which is a current limiting circuit for protecting the tube, is needed.

Generally, fluorescent lamps have a diameter of T10 (32mm, 40W), T8 (26mm, 32W) and T5 (16mm, 28W). The smaller the diameter, the higher the efficiency with less energy.

As shown in FIG. 1, most of the fluorescent lamp apparatuses that we have used so far have terminal pins 51 'at both ends of the fluorescent lamp 5', and the fluorescent lamps 5 ' Is configured to be illuminated by inserting a terminal pin 51 'into a socket 4' of a luminaire having a body 1 and a reflector 3, a stabilizer 2 and a pair of sockets 4 ' .

A ceiling embedded lighting type fluorescent lamp apparatus having such a structure is widely used in the form of being embedded in a ceiling surface in an office or the like, and is widely used in the form of T8 (diameter 26 mm, power consumption 32 W, total length 1,212 mm including a terminal pin) 32 mm, power consumption 40 W, total length 1,212 mm including the terminal pin), and the socket 4 for installing the fluorescent lamp 5 'is also selected from T8 or T10 standards.

However, when a fluorescent lamp of the T8 standard or T10 standard is used as described above, the consumption of electricity is large, and since the diameter is large, the brightness and the illuminance are lowered and unnecessary electric power is consumed. However, There is a problem that the efficiency is lowered.

Recently, T5 size (16 mm in diameter, 28 W power consumption) fluorescent lamp has been increasingly used because it has a reduced power consumption and an increased brightness and illuminance to improve the luminous efficiency and extend the life span.

However, it is impossible to install T5 standard fluorescent lamps having different diameters and terminal pin spacing in the T8 standard or T10 standard fluorescent lamp apparatuses installed in the existing office, etc., and in order to install such a T5 standard fluorescent lamp, It is necessary to replace the entirety of the installed fluorescent lamp apparatus with the other type and at the same time, the ceiling material must be repaired again, resulting in a complicated operation and a high cost.

In some cases, a fluorescent lamp adapter has been developed as a solution to the above-mentioned problem, and it has been proposed in Korean Registered Utility Model No. 20-0358877 and No. 20-0431610. In addition to the fluorescent lamp, A cylindrical cap-shaped adapter capable of coupling a relatively short and small T5 standard fluorescent lamp with a socket installed in a conventional T8 standard or T10 standard fluorescent lamp apparatus is formed so that these adapters are connected to both ends of the T5 standard fluorescent lamp, So that the terminal pins can be used in combination with the sockets provided in the T8 standard or T10 standard fluorescent lamp apparatus.

Of course, when using a T5 standard fluorescent lamp in combination with a socket installed in a conventional T8 or T10 standard fluorescent lamp using an adapter having the above-described configuration, the ballast installed in the conventional fluorescent lamp is also used as a T5 standard fluorescent lamp It should be replaced with the one designed and manufactured.

However, since the adapter itself is formed separately from the fluorescent lamps as well as the fluorescent lamp itself, the adapter itself is purchased and stored separately as a consumable item. The adapter is then connected to a T5 standard fluorescent lamp as needed, Since it is necessary to use it in connection with a socket installed in a fluorescent lamp apparatus of the standard, it unnecessarily imposes an economical burden on the consumer and is very inconvenient to use.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to solve the problems of the prior art described above by providing a light emitting body having a high luminous efficiency and selectively using an end cap according to an installation standard, And to provide a fluorescent-type LED illumination device capable of improving the brightness of the fluorescent lamp.

According to an aspect of the present invention, there is provided a liquid crystal display comprising: a heat dissipating frame having a fixing surface formed on one side thereof; a circuit board having a plurality of LEDs spaced from each other and fixed to a fixing surface of the heat dissipating frame; A diffusion cover for diffusing the emitted light; an end cap detachably coupled to both ends of the heat radiation frame; And a fixing unit fixing the end cap to the heat radiating frame, wherein the end cap includes: a first end cap having a first connection terminal for a first standard; and a second end cap for a second standard different from the second standard, And the second end cap having the terminal is selectively coupled to the end portion of the heat radiation frame.

The first end cap includes a first body provided with a first terminal connecting portion to finish an area corresponding to an end portion of the heat radiation frame and a second body closing a region between the heat radiation frame and the diffusion cover, The body is preferably made of a light-transmitting material.

The second body may include a side wall part closing the space between the heat radiating frame and the diffusion cover on the same plane as the outer surface of the first body and a side wall part extending from the upper end of the side wall part and interposed between the first body and the heat radiating frame And a first fixing piece.

The fixing part is formed of a fastening screw and is fixed to a fastening groove formed at a position corresponding to a fastening part of the heat radiating frame through a fastening part formed in a hole shape in the first body, And a through-hole through which the fastening portion passes is formed at a position where the fastening portion passes.

It is preferable that the circuit board has both end portions protruding from the end portion of the heat radiation frame and disposed adjacent to the inner side surface of the side wall portion.

In addition, a second fixing piece is formed on the upper end of the side wall of the second body so as to be parallel to the first fixing piece and to hold both ends of the first body together with the first fixing piece to maintain the state of engagement with the first body .

It is preferable that a sidewall portion for finishing the space between the heat radiation frame and the diffusion cover is formed at the end of the second end cap, and the circuit board is disposed adjacent to the inside of the sidewall portion by protruding a predetermined length from the end portion of the heat radiation frame.

It is preferable that the fixing part is formed of a fastening screw and is fixed to a fastening groove formed at a position corresponding to an engaging part of the heat radiating frame through a fastening part formed in a hole shape in the second end cap.

It is also preferable that the fixing device further comprises a fixing clip fixed to the mounting surface, wherein grooves are formed at both upper ends of at least one of the heat dissipating frame and the end cap to engage both ends of the fixing clip.

Further, it is preferable that the ballast further comprises a stabilizer for stably supplying power to the LED, and a space for accommodating the ballast is formed in the heat-radiating frame.

According to the present invention, there is provided a fluorescent-type LED light fixture which can improve the luminous efficiency and the product compatibility by configuring the light-emitting body with a standard of excellent luminous efficiency and selectively using an end cap according to the installation standard.

1 is a bottom perspective view of a conventional embedded open fluorescent lighting apparatus,
FIG. 2 is a perspective view of a fluorescent lamp type LED lighting apparatus according to the present invention in which a first end cap is applied;
FIG. 3 is a perspective view of a fluorescent lamp type LED lighting apparatus according to the present invention in which a second end cap is applied,
4 is an exploded perspective view of a fluorescent lamp type LED lighting apparatus according to the present invention,
5 is a vertical sectional view of the fluorescent lamp type LED lighting device of the present invention in which the first end cap is applied,
FIG. 6 is a sectional view taken along line A-A 'of FIG. 5 showing a state in which a first end cap is applied to a fluorescent lamp type LED lighting device of the present invention,
FIG. 7 is a sectional view taken along the line B-B 'of FIG. 5 showing a state where the first end cap is applied to the fluorescent lamp type LED lighting device of the present invention,
8 is a cross-sectional view taken along the line C-C 'of FIG. 3 showing a state in which the second end cap is applied to the fluorescent lamp type LED lighting device of the present invention,
FIG. 9 is a sectional view taken along the line D-D 'of FIG. 3 showing a state in which the second end cap is applied to the fluorescent lamp type LED lighting device of the present invention.

Prior to the description, components having the same configuration are denoted by the same reference numerals as those in the first embodiment. In other embodiments, configurations different from those of the first embodiment will be described do.

Hereinafter, a fluorescent lamp type LED lighting device according to a first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a perspective view of the fluorescent lamp type LED lighting device of the present invention in which a second end cap is applied. FIG. 4 is a perspective view of the fluorescent lamp type lighting device of FIG. 1 is an exploded perspective view of a fluorescent lamp type LED lighting apparatus according to the present invention.

As shown in the drawing, the fluorescent lamp type LED lighting apparatus of the present invention includes a heat radiation frame 110, a circuit board 120, a diffusion cover 130, and an end cap.

The heat radiating frame 110 is made of a material having a high thermal conductivity such as aluminum and has a first dimension (for example, 100 mm) provided with an accommodation space 111 in which a stabilizer 160, which supplies power to the LED 121, And a flat fixing surface 112 on which the circuit board 120 can be fixed is formed on one surface. Coupling grooves 113 are formed on both sides of the inner surface of the fixing surface 112 in contact with the accommodation space 111 and coupling grooves 114 are formed on both sides of the outer surface of the fixing surface 112 on which the circuit board 120 is fixed. Is formed. A stabilizer 160 for supplying a stable power to the LED 121 of the circuit board 120 may be accommodated in the internal space 111 of the heat dissipating frame 110 as needed.

The circuit board 120 includes a plurality of LEDs 121 spaced at predetermined intervals in the longitudinal direction and fixed to one surface of the heat radiating frame 110. Both ends of the LEDs 121 protrude from the end of the heat radiating frame 110, The side wall portion 143 is formed in a substantially rectangular shape.

The diffusion cover 130 is disposed on the upper side of the circuit board 120 to protect the LED 121 and diffuse the light emitted from the LED 121. The diffusion cover 130 has a substantially U- A coupling protrusion 131 engaging with the coupling groove 114 of the heat dissipating frame 110 is formed at both ends.

The end cap is detachably coupled to an end of the heat dissipating frame 110 with a connection terminal connected to an external power source and is connected to a first end cap having a first connection terminal 141 for a first standard (T5 standard) And the second end cap 150 having the second connection terminal 151 for the second standard (T8 or T10 standard) may be selectively coupled to the end portion of the heat radiation frame 110 do. The first end cap 140 and the second end cap 150 are provided with engaging portions 142 and 152 through which the fixing portion S penetrates at positions corresponding to the engaging grooves 113 of the heat dissipating frame 110 .

The first end cap 140 includes a first body 140a provided with a first connection terminal 151 and closing an area corresponding to an end of the heat radiation frame 110, And a second body 140b closing an area between the diffusion covers 130. [ At the center of the first body 140a, hole-like engaging portions 142 are formed at positions corresponding to the engaging grooves 113 of the heat dissipating frame 110. The second body 140b includes a side wall 143 for finishing a side opening space between the heat dissipating frame 110 and the diffusion cover 130 on the same plane as the outer surface of the first body 140a, A first fixing piece 144 extending from an upper end of the side wall part 143 and interposed between the first body 140a and the heat radiating frame 110, A through hole 145 formed at a position corresponding to the engaging groove 113 of the first body 140 and a first fixing piece 144 extending from the upper end of the side wall portion 143, And a second fixing piece 146 is formed to hold the first body 140a in engagement with the first body 140a.

The second end cap 150 includes a second connection terminal 151 for a second standard (T8 or T10 standard) and a coupling portion 152 formed at a position corresponding to the coupling groove 113 of the heat dissipating frame 110, And a sidewall 153 for finishing the space between the heat dissipating frame 110 and the diffusion cover 130 is integrally formed at the lower end of the outer surface of the heat dissipating frame 110.

The first end cap 140 and the second end cap 150 are inserted into the engaging portions 142 and 152 and fixed to the engaging grooves 113 of the heat dissipating frame 110, S to the heat radiation frame 110 side. The first end cap 140 passes through the through hole 145 of the first fixing piece 144 in which the fixing portion S is interposed between the first body 140a and the heat radiation frame 110, The second body 140b is firmly fixed in the process of joining the first body 140a and the heat dissipating frame 110 together.

Hereinafter, a coupling structure in a state in which the first end cap is applied to the above-described fluorescent lamp type LED lighting apparatus will be described.

5 is a vertical cross-sectional view of the fluorescent lamp type LED lighting device of the present invention in which the first end cap is applied, FIG. 6 is a cross-sectional view of the fluorescent lamp type LED lighting device of FIG. And FIG. 7 is a sectional view taken along the line B-B 'of FIG. 5 showing a state in which the first end cap is applied to the fluorescent lamp type LED lighting device of the present invention.

5, the circuit board 120 on which the LED 121 is mounted is fixed to the fixing surface 112 of the heat dissipating frame 110, and the circuit board 120 is mounted on the inner accommodating space 111 of the heat dissipating frame 110 And a stabilizer 160 for supplying a stable power source is disposed.

The stabilizer 160 can be selectively applied according to the installation environment of the lighting apparatus. That is, if the ballast 160 is disposed in the space 111 of the heat dissipating frame 110, the ballast 160 can be used as a ballast built-in type lighting device. If the ballast 160 is removed from the receiving space 111, It can be used like a general fluorescent lamp, so that the compatibility and the use range of the product can be expanded.

The diffusion cover 130 of the U-shaped cross section is arranged to surround the LED 121 in the heat radiation frame 110 and the engagement protrusions 131 at both ends of the diffusion cover 130 are disposed on both sides of the fixing surface 112 of the heat radiation frame 110 And is fixed to the heat dissipating frame 110 by engaging with the coupling grooves 114 formed.

On the other hand, when the lighting apparatus is directly mounted on a mounting surface such as a wall surface or a ceiling surface, a fixing clip (not shown) having a substantially "C" And the grooves 115 formed on both sides of the upper end of the heat dissipating frame 110 are engaged with the heat dissipating frame 110.

6, both ends of the circuit board 120 fixed to the fixing surface 112 of the heat dissipating frame 110 protrude from the end of the heat dissipating frame 110 and are disposed adjacent to the inner side surface of the side wall 143 of the end cap . Therefore, illumination can be provided to the lower front surface of the lighting device, thereby maximizing the illumination providing area.

The side wall portions 143 of the second body 140b made of a transparent material are connected to the heat radiating frames 110a and 110b under the first body 140a of the first end cap 140 coupled to both ends of the heat radiating frame 110, And the diffusion cover 130 are closed. Thus, the continuity of illumination can be prevented from being cut off by the end cap, and thus, when a plurality of luminaires are continuously installed, .

Since the second body 140b is fixed to the heat dissipating frame 110 together with the first body 140a in the process of fixing the first body 140a to the heat dissipating frame 110, the second body 140b is easy to assemble. The assembly structure of the first end cap 140 will be described in detail as follows.

6 and 7, the second body 140b disposed at the lower portion of the first body 140a has the first fixing piece 144 and the second fixing piece 146 connected to the second body 140b And is coupled to the first body 140a while covering both lower ends thereof. At this time, the first fixing piece 144 is positioned between the engaging portion 142 of the first body 140a and the engaging groove 113 of the heat dissipating frame 110. When the first body 140a is inserted into the heat dissipating frame The fixing portion S is fixed to the coupling portion 113 of the first fixing piece 144 in the process of inserting the fixing portion S into the insertion groove and fixing the fixing portion S to the coupling groove 113 of the heat- The second body 140b is fixed to the heat dissipating frame 110 together with the first body 140a.

When the first end cap 140 is coupled to both end portions of the light emitting body including the heat dissipating frame 110, the circuit board 120 and the diffusion cover 130, the first end cap 140, (T5 standard) power cable, connection cable, connector, etc. to the first connection terminal 141 for the power supply (T5 standard) to supply or supply power to a plurality of lighting apparatuses.

On the other hand, when a lighting apparatus is to be used for a socket for a second standard (T8 or T10 standard), a second connection terminal 151 for a second standard (T8 or T10 standard) is formed instead of the first end cap 140 The second end cap 150 can be applied.

Hereinafter, a coupling structure in which the second end cap 150 is applied to the lighting apparatus will be described.

FIG. 8 is a cross-sectional view taken along the line C-C 'of FIG. 3 showing a state in which the second end cap is applied to the fluorescent lamp type LED lighting device of the present invention. FIG. 9 is a cross- 3 is a cross-sectional view taken along the line D-D 'in FIG.

The second end cap 150 having the second connection terminal 151 for the second standard (T8 or T10 standard) is disposed at both ends of the heat dissipating frame 110 as shown in Figs. 8 and 9, When the fixing portion S is inserted into the engaging portion 152 formed on the end cap 150 and fixed to the engaging groove 113 of the heat dissipating frame 110, the second end cap 150 is fixed to the heat dissipating frame 110 . At this time, the side wall portion 153 integrally formed at the lower end of the second end cap 150 closes the opening space between the heat radiation frame 110 and the diffusion cover 130, and the second standard (T8 or T10 standard) Since the end portion is fixed to the lamp socket, the side wall portion 153 may be made of an opaque material.

When the second end cap 150 is coupled to the end of the light emitting body including the heat dissipating frame 110, the circuit board 120 and the diffusion cover 130 as described above, the lighting apparatus can be used for the second specification (T8 or T10 standard) .

According to the embodiment of the present invention as described above, the first end cap 140 having the first connection terminal 141 for the T5 standard, the second connection terminal 151 for the T8 or T10 standard, The light emitting body including the heat radiating frame 110, the circuit board 120, and the diffusion cover 130 can be mounted in various sizes So that it is possible to reduce the burden on parts inventory.

The scope of the present invention is not limited to the above-described embodiments, but may be embodied in various forms of embodiments within the scope of the appended claims. 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 present invention as defined by the appended claims.

110: heat radiation frame, 111: accommodation space, 112: fixing surface,
113: fastening groove, 114: engaging groove, 115: groove portion,
120: circuit board, 121: LED, 130: diffusion cover,
131: engaging projection, 140: first end cap, 140a: first body,
141: first connection terminal, 142: engaging portion, 140b: second body,
143: side wall portion, 144: first fixing piece, 145: through hole,
146: second fixing piece, 150: second end cap, 151: second connection terminal,
152: engaging portion, 153: side wall portion, 160: stabilizer, S:

Claims

A heat dissipating frame having a fixing surface formed on one side thereof;
A circuit board in which a plurality of LEDs are spaced apart and fixed to a fixing surface of the heat radiation frame;
A diffusion cover disposed on the circuit board and diffusing light emitted from the LED;
An end cap detachably coupled to both ends of the heat radiation frame; And
And a fixing unit fixing the end cap to the heat radiation frame,
Wherein the end cap has a first end cap having a first connection terminal for a first standard and a second end cap having a second connection second terminal different from the second standard, Fluorescent lamp type LED lighting fixture.

The method according to claim 1,
The first end cap includes a first body provided with a first terminal connection portion and finishing an area corresponding to an end portion of the heat radiation frame and a second body closing a region between the heat radiation frame and the diffusion cover, Fluorescent type LED lighting fixture made of translucent material.

3. The method of claim 2,
The second body includes a sidewall portion for finishing a space between the heat dissipating frame and the diffusion cover on the same plane as the outer surface of the first body and a second body extending from the upper end of the sidewall portion and interposed between the first body and the heat dissipation frame A fluorescent light type LED lighting fixture comprising a fixing piece.

The method of claim 3,
The fixing part is made of a fastening screw and is fixed to a fastening groove formed at a position corresponding to the fastening part of the heat radiating frame through a fastening part formed in a hole shape in the first body, And a through hole through which the fixing portion passes.

The method of claim 3,
Wherein the circuit board has both end portions protruding from the end portions of the heat radiation frame and disposed adjacent to the inner side surface of the side wall portion.

The method of claim 3,
And a second fixing piece disposed on an upper end of a side wall of the second body so as to be parallel to the first fixing member and to hold both ends of the first body together with the first fixing member to maintain a state of engagement with the first body, Type LED lighting fixture.

The method according to claim 1,
And a sidewall portion for finishing a space between the heat radiation frame and the diffusion cover is formed at an end of the second end cap, and the circuit board is disposed adjacent to the inside of the side wall portion by projecting a predetermined length from the end portion of the heat radiation frame.

8. The method of claim 7,
Wherein the fixing portion is fixed to a coupling groove formed at a position corresponding to a coupling portion of the heat radiation frame through a coupling portion formed in a hole shape in the second end cap.

9. The method according to any one of claims 1 to 8,
And a fixing clip fixed to an installation target surface, wherein grooves are formed at both upper ends of at least one of the heat radiating frame and the end cap to engage both ends of the fixing clip.

9. The method according to any one of claims 1 to 8,
And a stabilizer for stably supplying power to the LED, wherein a space for accommodating the ballast is formed in the heat-radiating frame.