KR101574648B1 - Lighting apparatus - Google Patents

Abstract

The lighting apparatus includes a light source unit, a power application unit, and a heat dissipation unit. The light source unit includes at least one light source. The power applying unit electrically connects a power source provided from the outside to the light source unit. The heat dissipating unit is disposed at a lower portion of the light source unit and emits heat generated from the light source unit to the outside, and is desorbed into at least two or more pieces. Therefore, a compatible heat sink can be manufactured to simplify the manufacturing process and increase the heat radiation efficiency.

Description

LIGHTING APPARATUS

The present invention relates to a lighting apparatus, and more particularly, to a lighting apparatus using a light emitting diode.

BACKGROUND ART In general, light emitting diodes (LEDs) have many merits such as high luminous efficiency, long life, low power consumption, and environmental friendliness.

Such light emitting diodes are widely used in many lighting apparatuses. An example of a product employing the light emitting diode in a conventional lighting apparatus is a PAR lamp product. The PAR lamp product is divided into PAR38, PAR30, and PAR20 depending on the size, and each includes a heat sink. The heat sink is an essential component in a lighting apparatus employing a light emitting diode for emitting heat generated in the light emitting diode.

The heat sink is generally made of a single body and is manufactured separately according to the size of the lighting apparatus, that is, PAR38, PAR30, PAR20, etc. When the power consumption of the light emitting diode employed in the lighting apparatus is changed, It is manufactured separately considering efficiency.

As a result, the conventional lighting apparatus must be manufactured in accordance with a separate manufacturing process depending on the size of the heat sink, the power consumption of the light emitting diode, and the like, thereby complicating the manufacturing process and increasing the manufacturing cost.

Accordingly, it is an object of the present invention to provide a lighting apparatus which can manufacture a compatible heat sink, simplify a manufacturing process, and increase heat dissipation efficiency.

A lighting apparatus according to an embodiment of the present invention includes a light source unit, a power application unit, and a heat dissipation unit. The light source unit includes at least one light source. The power applying unit electrically connects an external power source to the light source unit. The heat dissipation unit is disposed at a lower portion of the light source unit, discharges heat generated from the light source unit to the outside, and is desorbed into at least two pieces.

The heat dissipating unit may have a cylindrical or conical shape, for example.

In one embodiment, the heat dissipating unit may be desorbed into at least two or more pieces in a direction parallel or perpendicular to the cylindrical or conical circular cross section.

For example, at least two pieces of the heat-dissipating portion may include a first block having a cylindrical or conical shape and a second block disposed on the first block and having a cylindrical or conical shape and removable from the first block . At this time, the first block may have a size corresponding to a standard size so as to be adopted as a heat radiating portion of a separate lighting device. Also, the first block may include at least two pieces defining the cylindrical or conical shape, and the second block may include at least two or more pieces defining the cylindrical or conical shape, Lt; / RTI >

Optionally, at least some of the engaging surfaces to which the pieces engage may be spaced apart from each other to permit ventilation. In one embodiment, a first projection having an outer diameter of a first diameter is formed on a coupling surface of one of the coupling surfaces, and a second projection having a second diameter larger than the first diameter is formed on the coupling surface of the other coupling surface, A second protrusion having an inner diameter of the second protrusion can be formed. In this case, the first projecting portion is forcedly fitted into the second projecting portion. In another embodiment, at least one third projection may be formed on the coupling surface of any one of the coupling surfaces, and at least two or more fourth protrusions may be formed on the coupling surface of the other coupling surface. In this case, the third projections are interference fit between the fourth projections.

According to the present invention, the heat dissipating unit corresponding to the heat sink is formed of a plurality of blocks, and at least a part of the blocks can be used in a separate lighting apparatus, The manufacturing process can be simplified and the cost can be reduced by manufacturing the sink.

In addition, the blocks and the blocks constituting the blocks can be spaced apart from each other at a predetermined interval to allow air to flow between the spaced apart spaces, thereby increasing heat radiation efficiency.

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprising" or "having ", and the like, are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

FIG. 1 is a side view showing a lighting apparatus according to an embodiment of the present invention, and FIG. 2 is an exploded side view of a heat dissipating unit of the lighting apparatus shown in FIG.

Referring to FIGS. 1 and 2, a lighting apparatus 100 according to an embodiment of the present invention includes a light source 110, a power application unit 120, and a heat dissipation unit 130.

The light source 110 includes a printed circuit board 112 and at least one light source 114 disposed on the printed circuit board 112. The light source 114 includes, for example, a light emitting diode.

The power application unit 120 electrically connects a power source provided from the outside to the light source unit 110. In one embodiment, the power application unit 120 may include a socket 122 and a wire 124 electrically connected to the socket.

The socket 122 can be installed at a predetermined position by being coupled to a socket inserting port (not shown) installed in the room or outside, and can receive power from the outside.

The wire 124 is electrically connected to the light source 114 of the light source unit 110 and transmits the power source provided from the outside to the light source 114. The wire 124 may be disposed, for example, in a hole HL formed in the heat dissipation unit 130 described later.

The heat dissipation unit 130 is disposed below the light source unit 110 and emits heat generated from the light source unit 110 to the outside. The heat dissipation unit 130 has a cylindrical or conical shape and is detachable with at least two pieces. In one embodiment, the heat dissipation unit 130 may be desorbed in at least two or more pieces in a direction parallel or perpendicular to the circular cross section of the cylindrical or conical cross section. The term "cylindrical" or "cone " as used herein means not only a cylindrical shape or a conical shape in which the profile constituting the longitudinal section is a straight line, but also a curved profile as shown in Fig. 1 . Also, the "round ", corresponding to the cylindrical or conical cross section described herein, is broadly oval in addition to the circle of pure meaning.

In one embodiment, the heat dissipation unit 130 includes a first block 132 and a second block 134. The first block 132 has a cylindrical or conical shape. The second block 134 is disposed on the first block 132 and has a cylindrical or conical shape and is detachably attached to the first block 132.

A first opening OP1 is formed in the first block 132 and a second opening OP2 is formed in the second block 134. [ The light source unit 110 is disposed in the second opening 134. Since the first opening 132 is formed to be ventilated, heat radiation efficiency can be increased.

The first block 132 may include at least two pieces defining the cylindrical or conical shape. In one embodiment, the first block 132 includes a first piece 132a, a second piece 132b, a third piece (not shown), and a fourth piece (not shown) The first piece 132a, the second piece 132b, the third piece, and the fourth piece are coupled in a counterclockwise direction to define the first block 132. The first piece 132a, the second piece 132b, the third piece, and the fourth piece have the same shape, for example.

The second block 134 may include at least two pieces defining the cylindrical or conical shape. In one embodiment, the second block 134 includes a fifth piece 134a, a sixth piece 134b, a seventh piece (not shown), and an eighth piece (not shown) The fifth piece 134a, the sixth piece 134b, the seventh piece and the eighth piece are coupled counterclockwise to define the second block 134. The fifth piece 134a, the sixth piece 134b, the seventh piece, and the eighth piece have the same shape, for example.

The first piece 132a of the first block 132 is vertically coupled to the fifth piece 134a of the second block 134 and the fourth piece 132a of the first block 132 is coupled to the second piece 134. [ (132b). The second piece 132b of the first block 132 is vertically coupled to the sixth piece 134b of the second block 134 and the first piece 132a and the second piece 132b of the first block 132, The third piece is joined to the left and right. The third piece of the first block 132 is coupled up and down with the seventh piece of the second block 134 and the second piece 132b and the fourth piece of the first block 132 . The fourth piece of the first block 132 is coupled up and down with the eighth piece of the second block 134 and the third piece and the first piece 132a of the first block 132, .

The fifth piece 134a of the second block 134 is vertically coupled with the first piece 132a of the first block 132 and the eighth piece and the sixth piece 134b of the second block 134, (134b). The sixth piece 134b of the second block 134 is vertically coupled to the second piece 132b of the first block 132 and the fifth piece 134a of the second block 134 And to the left and right sides of the seventh piece. The seventh piece of the second block 134 is vertically coupled to the third piece of the first block 132 and the sixth piece 134b and the eighth piece of the second block 134 . The eighth piece of the second block 134 is coupled up and down with the fourth piece of the first block 132 and the seventh piece and the fifth piece 134a of the second block 134, .

1 and 2, the heat radiating part 130 of the lighting device 100 includes the first and second blocks 132 and 134, but it may be formed of three or more blocks. Each of the first and second blocks 132 and 134 includes four pieces, but it may be a single piece, or two, three, or five or more pieces.

At least some of the engaging surfaces to which the pieces engage may be spaced apart from each other to permit ventilation.

FIG. 3 is a partially enlarged view showing an embodiment of the coupling method of the pieces shown in FIGS. 1 and 2. FIG.

Referring to FIG. 3, one of the engagement surfaces of the pieces to be coupled with each other is referred to as a first engagement surface 136, and the other engagement surface, which is engaged with the first engagement surface 136, A first protrusion 136a having an outer diameter of a first diameter D1 is formed on the first engagement surface 136 and a second protrusion 136b having an outer diameter of the first diameter D1 is formed on the second engagement surface 138, A second protrusion 138a having an inner diameter of a second diameter D2 larger than the diameter D1 may be formed. In this case, the first projecting portion is forcedly fitted into the second projecting portion 138a.

By the above-described coupling, the first engagement surface 136 and the second engagement surface 138 can be spaced apart from each other and ventilation is possible between the spaced intervals, so that the cooling efficiency can be improved. When the coupling of all the pieces is performed by the coupling method, there is a predetermined gap between the pieces, so that the cooling efficiency can be further improved.

FIG. 4 is a partial enlarged view showing another embodiment of the coupling method of the pieces shown in FIGS. 1 and 2. FIG.

4, at least one third protrusion 136b may be formed on the first engagement surface 136 and at least two fourth protrusions 138b may be formed on the second engagement surface 138 have. In this case, the third projection 136b is interference fit between the fourth projections 138b.

By the above-described coupling, the first engagement surface 136 and the second engagement surface 138 can be spaced apart from each other and ventilation is possible between the spaced intervals, so that the cooling efficiency can be improved. When the coupling of all the pieces is performed by the coupling method, there is a predetermined gap between the pieces, so that the cooling efficiency can be further improved.

In FIGS. 3 and 4, embodiments in which the predetermined intervals are provided between the pieces are described. However, other combinations of the predetermined intervals are possible.

Meanwhile, the first block 132 may have a size corresponding to a standard size so as to be adopted as a heat dissipating unit of a separate lighting apparatus.

5 is a side view showing a separate lighting device employing the first block shown in Figs. 1 and 2. Fig.

Referring to FIG. 5, the first block 132 may be employed in a separate lighting apparatus 200. At this time, the light source unit 110 may be disposed in the first opening OP1 of the first block 132. [

Since the lighting device 200 has a size corresponding to a standard size, the heat dissipating portion of the lighting device 200 can be formed only by manufacturing the first block 132. Therefore, it is not necessary to construct a separate facility line for the manufacturing process of the lighting device 200, so that the manufacturing cost can be reduced.

According to the present invention, the heat dissipation unit 130 corresponding to the heat sink may be formed of a plurality of blocks 132 and 134, and at least a part 132 of the blocks may be adopted as a separate lighting apparatus. By having a size corresponding to the standard, a compatible heat sink can be manufactured to simplify the manufacturing process and reduce the cost.

Also, the blocks 132 and 134 and the blocks 132 and 134, which constitute the blocks 132 and 134, can be spaced apart from each other at a predetermined interval to be ventilated So that the heat radiation efficiency can be increased.

While the present invention has been described in connection with what is presently considered to be practical and exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Accordingly, the foregoing description and drawings are to be regarded as illustrative rather than limiting of the present invention.

1 is a side view showing a lighting device according to an embodiment of the present invention.

Fig. 2 is an exploded side view of the heat dissipating unit of the lighting apparatus shown in Fig. 1; Fig.

FIG. 3 is a partially enlarged view showing an embodiment of the coupling method of the pieces shown in FIGS. 1 and 2. FIG.

FIG. 4 is a partial enlarged view showing another embodiment of the coupling method of the pieces shown in FIGS. 1 and 2. FIG.

5 is a side view showing a separate lighting device employing the first block shown in Figs. 1 and 2. Fig.

 <Short description of main drawing number>

100, 200: illuminator 110: light source

120: power applying unit 130:

132: first block 134: second block

136: first engagement surface 138: second engagement surface

Claims (9)

A light source unit including at least one light source; A power supply unit electrically connecting an external power source to the light source unit; And And a heat dissipation unit disposed at a lower portion of the light source unit to discharge heat generated from the light source unit to the outside and to be desorbed into at least two pieces, At least two pieces of the heat- A first block having a cylindrical or conical shape; And And a second block disposed on the first block and having a cylindrical or conical shape and detachable from the first block, Wherein the first block includes at least two pieces defining the cylindrical or conical shape, Wherein the second block comprises at least two pieces defining the cylindrical or conical shape. The method according to claim 1, Wherein the heat radiating portion has a cylindrical or conical shape. 3. The method of claim 2, Wherein the heat dissipation unit is desorbed into at least two pieces in parallel or perpendicular to the circular or circular conical cross section. delete The method according to claim 1, Wherein the first block has a size corresponding to a standard size so that the first block can be employed as a heat dissipating unit of a separate lighting apparatus. delete The method according to claim 1, Wherein at least some of the engaging surfaces on which the pieces engage with each other are spaced apart from each other to permit ventilation. 8. The method of claim 7, Wherein a first protrusion having an outer diameter of a first diameter is formed on one of the engagement surfaces and a second protrusion having an inner diameter of a second diameter larger than the first diameter is formed on the other engagement surface of the engagement surfaces. 2 protrusions are formed, And the first projection is interference fit inside the second projection. 8. The method of claim 7, At least one third protrusion is formed on one of the coupling surfaces and at least two or more fourth protrusions are formed on the coupling surface of the other coupling surface, And the third projection is interference fit between the fourth projections.

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