AU2015312567B2

AU2015312567B2 - LED ceiling lamp

Info

Publication number: AU2015312567B2
Application number: AU2015312567A
Authority: AU
Inventors: Duk Yong Kim; Joon Hong Park; Jin Soo Yeo
Original assignee: GigaTera Inc
Current assignee: GigaTera Inc
Priority date: 2014-09-03
Filing date: 2015-09-03
Publication date: 2018-09-06
Anticipated expiration: 2035-09-03
Also published as: WO2016036149A1; AU2015312567A1; KR20160028552A

Abstract

The present invention relates to an LED ceiling lamp comprising: a lighting module unit (300) provided with light outlets (310) on the lower side thereof, provided with a plurality of radiation fins (320) on the upper side thereof, and in which a plurality of substrates (330) having a plurality of LEDs mounted thereon for emitting light through the light outlets (310) are respectively and fixedly provided on the inner side thereof; a power source module unit (200) upwardly protruding from the upper part of the lighting module unit (300), having an inner space protruding so as to communicate with an internal space of the lighting module unit (300), having a power supply unit (210) fixedly provided on the inner side thereof, and having a plurality of radiation fins (220) formed on the upper part thereof; a power source connection unit (100) fixedly provided on the upper surface side of the power source module unit (200), and providing a space for accommodating an end portion of a power source cable (120) provided from the indoor ceiling so as to wire the end portion to a cable (211) of the power supply unit (210); and a cover unit (400) coupled to the light outlets (310) of the lighting module unit (300) so as to distribute, to the ceiling, a part of the light emitted through the light outlets (310).

Description

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2015312567 23 Jul 2018

LED CEILING LAMP

TECHNICAL FIELD

The present invention relates to an LED ceiling lamp, and more particularly, to an LED ceiling lamp that is applicable to the interior with a high ceiling.

BACKGROUND ART

In general, lighting devices using LEDs as light 10 sources have been developed in view of problems such as the high power consumption and short lifetimes of existing light source means. When LEDs are used as light sources, lighting devices have significantly longer lifetimes compared to using existing light sources. Therefore, it is expected to 15 prevent environmental pollution since the discharge of waste is markedly reduced and to contribute to energy conservation by low power consumption.

However, since these LEDs are point light sources, they need to have a surface emitting structure to be used as 20 anti-glare light sources. The LEDs are typically attached and installed to the ceiling for interior lighting.

Most conventional interior lights for ceilings are fluorescent lamps or have a structure in which down lights are embedded and installed in the ceiling.

For example, Korean Patent No. 10-1141660 (April 24,

2015312567 23 Jul 2018

2012) entitled A ceiling-embedded down light fixture structure discloses a structure in which down lights are embedded and installed in the ceiling.

In addition, Korean Patent No. 10-0906088 (June 29,

2009) entitled A fluorescent type LED lighting fixture discloses an LED lighting fixture having a shape similar to a fluorescent lamp.

Since these conventional interior lights for ceilings have a structure in which light is emitted downward, the 10 ceiling around installation is relatively dark.

A large supermarket must be designed to have a relatively high ceiling for sufficiently loading products and to evenly distribute light such that the ceiling is not dark. This is because lighting actually affects consumption 15 needs of consumers .

Accordingly, the conventional interior lights for ceilings may be suitably used in houses or offices with relatively low ceilings, but it is difficult to use the conventional interior lights for ceilings in large 20 supermarkets with relatively high ceilings.

In this specification where reference has been made to patent specifications, other external documents, or other sources of information, this is generally for the purpose of providing a context for discussing the features of the 25 invention. Unless specifically stated otherwise, reference

2015312567 23 Jul 2018 to such external documents is not to be construed as an admission that such documents, or such sources of information, in any jurisdiction, are prior art, or form part of the common general knowledge in the art.

DISCLOSURE

TECHNICAL PROBLEM

Accordingly, the present invention has been made in view of the above-mentioned problems, and an object thereof 10 is to provide an LED ceiling lamp configured to distribute light upward as well as to a floor.

It is another object of the present invention to provide an LED ceiling lamp that enables cables to be easily interconnected and enables the connection state thereof to 15 be easily checked.

It is a further object of the present invention to provide an LED ceiling lamp capable of preventing heat transfer between a power supply unit and a substrate.

An additional or alternative object of the present invention is to at least provide the public with a useful choice .

TECHNICAL SOLUTION

In accordance with an aspect of the present invention, an LED ceiling lamp comprises a lighting module unit having

2015312567 23 Jul 2018 light outlets provided on a bottom thereof, and comprising a plurality of radiation fins arranged on an upper surface thereof and a plurality of substrates fixedly installed therein, a plurality of LEDs being respectively mounted on 5 the substrates for emitting light through the light outlets;

a power module unit protruding upward from an upper portion of the lighting module unit, having an inner space protruding to communicate with an internal space of the lighting module unit, and comprising a power supply unit 10 fixedly installed therein and a plurality of radiation fins formed on an upper portion thereof; a power cable provided from a ceiling to be connected to the power supply unit of the power module unit by a connector; a fixing member fixing the power module unit to the ceiling; and a cover unit 15 coupled to the light outlets of the lighting module unit to distribute a portion of the light emitted through the light outlets to the ceiling, wherein the cover unit has an oval shape and allows 10 to 20% of the light emitted through the light outlets to be 20 distributed to the ceiling, wherein the curvature of the cover unit is dependent on an aspect ratio of the oval shape of the cover unit, wherein the substrates are fixedly installed to the bottom of the upper portion of the lighting module unit in the vicinity of the power module unit.

2015312567 23 Jul 2018

In an embodiment, the LED ceiling lamp further comprises a power connection unit fixedly installed above the power module unit and providing a space for accommodating an end of the power cable provided from the 5 ceiling to connect the end of the power cable to the power supply unit by the connector.

The term 'comprising' as used in this specification and claims means 'consisting at least in part of' . When interpreting statements in this specification and claims 10 which include the term 'comprising', other features besides the features prefaced by this term in each statement can also be present. Related terms such as 'comprise' and 'comprised' are to be interpreted in a similar manner.

ADVANTAGEOUS EFFECTS

An LED ceiling lamp according to at least an embodiment of the present invention is suitable to illuminate the interior with a high ceiling by distributing a portion of light to the ceiling.

In addition, the LED ceiling lamp according to at least an embodiment of the present invention has an effect of easily connecting a power cable and of easily checking the connection state thereof.

Furthermore, the LED ceiling lamp according to at 25 least an embodiment of the present invention has an effect of separately installing a power supply unit and an LED to reduce heat conduction therebetween, thereby preventing the lifetime shortening of the LED ceiling lamp due to the heat conduction therebetween.

2015312567 23 Jul 2018

BRIEF DESCRIPTION OF DRAWINGS

Fig. 1 is an exploded perspective view illustrating an LED ceiling lamp according to an exemplary embodiment of the present invention.

Fig. 2 is a perspective view illustrating a coupled state of the LED ceiling lamp of Fig. 1.

Fig. 3 is a front cross-sectional view of Fig. 2.

Fig. 4 is a bottom perspective view of Fig. 3.

Figs. 5 and 6 are cross-sectional views illustrating an LED ceiling lamp according to other exemplary embodiments of the present invention.

[Description of the Reference Numerals]

	100 :	power connection unit, 110:	fixing member
	120 :	power cable, 130: projecting	coupling part
20	140 :	lid, 160: connection ring
	200 :	power module unit, 210: power	supply unit
	211 :	connector, 220: radiation fin
	300 :	lighting module unit, 310: light	outlet
	320 :	radiation fin, 330: substrate
25	400 :	cover unit

2015312567 23 Jul 2018

BEST MODE FOR INVENTION

Hereinafter, an LED ceiling lamp according to exemplary embodiments of the present invention will be 5 described in detail with reference to the accompanying drawings .

Fig. 1 is an exploded perspective view illustrating an LED ceiling lamp according to an exemplary embodiment of the present invention. Fig. 2 is a front view illustrating 10 a coupled state of the LED ceiling lamp of Fig. 1. Fig. 3 is a cross-sectional view of Fig. 2. Fig. 4 is a bottom perspective view of Fig. 3.

Referring to Figs. 1 to 4, the LED ceiling lamp according to the exemplary embodiment of the present 15 invention includes a lighting module unit 300 that has light outlets 310 provided on the bottom thereof, has a plurality of radiation fins 320 arranged on the upper surface thereof, and has a plurality of substrates 330 fixedly installed therein, a plurality of LEDs being respectively mounted on 20 the substrates for emitting light through the light outlets 310, a power module unit 200 that protrudes upward from the upper portion of the lighting module unit 300, has an inner space protruding to communicate with an internal space of the lighting module unit 300, and has a power supply unit 25 210 fixedly installed therein, a power connection unit 100

2015312567 23 Jul 2018 that is spaced apart from the upper surface of the power module unit 200, and provides a space for accommodating an end of a power cable 120 provided from an interior ceiling to connect the end of the power cable to the power supply unit 210 using a connector 211 of the power supply unit 210, a fixing member 110 that fixes the upper center of the power module unit 200 to the ceiling through the power connection unit 100, and an oval cover unit 400 that is coupled to the light outlets 310 of the lighting module unit 300 to distribute 10 to 20% of the light emitted through the light outlets 310 to the ceiling.

The configuration and operation of the LED ceiling lamp according to the exemplary embodiment of the present invention will be described below in more detail.

First, the lighting module unit 300 may be formed integrally with the power module unit 200.

The lighting module unit 300 may have a cylindrical shape and have the light outlets 310 provided on the bottom thereof. The inside of the power module unit 200, which is provided at the upper center of the lighting module unit 300, communicates with the lighting module unit 300.

The inside of the power module unit 200 is a hexahedral space when viewed from the inside of the lighting module unit 300. Four substrates 330 are fixedly installed on the bottom of the inner upper portion of the lighting

2015312567 23 Jul 2018 module unit 300 in the vicinity of the inner space of the power module unit 200. Power is supplied from the power supply unit 210 accommodated in the power module unit 200 to the LEDs that are respectively mounted on the substrates 5 330.

Accordingly, it is possible to reduce heat conduction between the substrates 330 and the power supply unit 210 by installing the substrates 330 and the power supply unit 210 at different heights.

That is, since the heat generated during the

operation	of	the	LEDs	is not transferred to	the	power supply
unit	210	and	the	heat	generated	by	the power	supply unit	210
does	not	affect	the	LEDs, it	is	possible	to	prevent	the

	lifetime shortening of both the	LEDs and	the power supply
15	unit 210 due to	heat.
	Light is	emitted through	the	light	outlets	310 from
	the LEDs, and	the distribution	of	light	emitted	from the

light outlets 310 is determined by the cover unit 400.

In this case, the cover unit 400 has an oval shape.

The cover unit 400 allows 10 to 20% of total light to be distributed to the ceiling, and allows the remaining light to be distributed to the interior space.

This distribution may be adjusted by the curvature of the cover unit 400.

Accordingly, the present invention can distribute

2015312567 23 Jul 2018 light to the interior space and in the vicinity of the ceiling to which the LED ceiling lamp is directly installed, so that the ceiling around installation is illuminated so as not to be dark. Therefore, it is possible to more brightly 5 illuminate the interior space with a relatively high ceiling .

Separate radiation fins 220 and 320 are provided in respective upper portions of the power module unit 200 and the lighting module unit 300 to radiate the heat generated 10 by the power supply unit 210 and the LEDs. It is possible to enhance heat dissipation efficiency by installing the substrates 330 having the LEDs mounted thereon and the power supply unit 210 at different heights and preventing heat conduction therebetween as described above.

The power connection unit 100 is located above the power module unit 200 and a projecting coupling part 130 is located between the power connection unit 100 and the power

	module unit 200. Thus,	the	power connection	unit 100	is
	spaced apart from the	power module unit	2 00 by	a
20	predetermined distance.
	This structure enables	heat to be easily	radiated	by

exposing the radiation fins 210 of the power module unit 200 to the outside.

The power connection unit 100 is provided with a lid

140, at least one side of which is able to be open, and

2015312567 23 Jul 2018 which has an empty inner space.

The lid 140 serves to provide a space in which the power cable 120 provided from the ceiling is connected to the connector 211 of the power supply unit 210, and the 5 power cable 120 may be connected to the power supply unit 200 by the connector 211.

In this case, an operator may connect the power cable

120 to the power supply unit 210 using the connector 211 by opening the lid 14 0, and may easily check the connection 10 state thereof by opening the lid 140 after the connection of the cable .

As described above, the power module unit 200 is formed integrally with the lighting module unit 300. In this structure, it is inconvenient for the operator to 15 connect an external power cable to the power supply unit 210 accommodated in the power module unit 200 or to check the connection state thereof in the lower small space after opening the lower cover unit 400. However, the present invention can improve operation convenience since the 20 separate power connection unit 100 is provided and the operator connects cables and checks cable connection by opening the lid 140.

	The LED ceiling	lamp according	to the	present
	invention is fixedly	installed to the	ceiling,	and is
25	securely fixed to the	ceiling in such a	manner	that the

2015312567 23 Jul 2018 power cable 120 is provided from the ceiling and the other end of the fixing member 110, one end of which is fixed to the ceiling, is connected to the upper center of the power module unit 200 through the power connection unit 100.

In addition, the power connection unit 100 has a plurality of connection rings 160 provided in the upper portion thereof, and the LED ceiling lamp may be additionally fixed to the ceiling using other fixing cables. The LED ceiling lamp must be necessarily equipped with the connection rings in regions where many natural disasters such as earthquakes occur, with the consequence that the LED ceiling lamp can be more securely fixed to the ceiling.

Although the fixing member 100 is illustrated to be a chain in the drawings, the fixing member 100 may be changed 15 in various forms, for example a fixing pipe or a fixing bar.

Fig. 5 is a cross-sectional view illustrating an LED ceiling lamp according to another exemplary embodiment of the present invention.

The LED ceiling lamp according to another embodiment of the present invention with reference to Fig. 5 has identical components to those of the embodiment described with reference to Figs. 1 to 4, except that a fixing pipe 111 is used instead of the chain type fixing member 110.

In this case, the power cable 120 for power supply is connected to the ceiling by the fixing pipe 111.

2015312567 23 Jul 2018

Also, the power cable 120 may be easily installed by opening the lid 140 of the power connection unit 100 and the connection state thereof may be easily checked during maintenance .

Fig. 6 is a cross-sectional view illustrating an LED ceiling lamp according to a further exemplary embodiment of the present invention.

The LED ceiling lamp according to the further embodiment of the present invention with reference to Fig. 6 10 has identical components to those of the embodiment described with reference to Figs. 1 to 4, except that the power connection unit 100 is removed.

That is, the central portion of the power module unit 200 is fixed to the ceiling by the fixing member 110, and 15 the power cable 120 provided from the ceiling is directly connected to the upper portion of the power module unit 200 through the connector 211 so as to supply power thereto.

Accordingly, since the power cable is directly connected to the outside of the housing of the power module 20 unit 200 using the connector 211, the connection of the power cable is easily performed and the connection state thereof is easily checked.

Although the present invention has been described with respect to the illustrative embodiments, it will be 25 apparent to those skilled in the art that various variations

2015312567 23 Jul 2018 and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

INDUSTRIAL APPLICABILITY

The present invention provides an LED ceiling lamp that can be installed to the ceiling to distribute light in downward and upward directions and to thus illuminate the interior with a high ceiling, and in which cables are easily 10 interconnected. Therefore, the LED ceiling lamp of the present invention is applicable to industries.

2015312567 23 Jul 2018

Claims

WHAT IS CLAIMED IS:

1. An LED ceiling lamp comprising:

a lighting module unit having light outlets provided

5 on a bottom thereof, and comprising a plurality of radiation fins arranged on an upper surface thereof and a plurality of substrates fixedly installed therein, a plurality of LEDs being respectively mounted on the substrates for emitting light through the light outlets;

10 a power module unit protruding upward from an upper portion of the lighting module unit, having an inner space protruding to communicate with an internal space of the lighting module unit, and comprising a power supply unit fixedly installed therein and a plurality of radiation fins

15 formed on an upper portion thereof;

a power cable provided from a ceiling to be connected to the power supply unit of the power module unit by a connector;

a fixing member fixing the power module unit to the

20 ceiling; and a cover unit coupled to the light outlets of the lighting module unit to distribute a portion of the light emitted through the light outlets to the ceiling, wherein the cover unit has an oval shape and allows 10

25 to 20% of the light emitted through the light outlets to be

2015312567 23 Jul 2018 distributed to the ceiling, wherein the curvature of the cover unit is dependent on an aspect ratio of the oval shape of the cover unit, wherein the substrates are fixedly installed to the

5 bottom of the upper portion of the lighting module unit in the vicinity of the power module unit.
2. The LED ceiling lamp according to claim 1, further comprising a power connection unit fixedly installed above 10 the power module unit and providing a space for accommodating an end of the power cable provided from the ceiling to connect the end of the power cable to the power supply unit by the connector.

15
3. The LED ceiling lamp according to claim 2, wherein the power connection unit has a lid provided on a side thereof, the lid being openable and closable.
4. The LED ceiling lamp according to claim 2 or 3,

20 wherein a projection coupling part is provided between the power connection unit and the power module unit so that the power connection unit is spaced apart from the power module unit.

EDITORAL NOTE

Please note that claim pages go from pages 15 to 16 then there is no page 17.

Drawing pages start at page 18 and go to page 22 [ Drawings] [Fig. 1] [Fig. 2]

200

- 300

- --320 .- 400 [Fig. 3] [Fig . 4] [Fig . 5] [Fig. 6]