KR100905702B1 - Electrodeless lighting equipment - Google Patents

Abstract

The present invention relates to an electrodeless lighting device, which includes a flange portion protruding from the inverter module and the light emitting portion, and including a flange portion protruding from the front end of the heat dissipating portion so that the reflection shade is detachable. Provided is an electrodeless illuminating device in which emission of generated heat is efficiently performed.

The present invention is a phosphor is coated on the inner wall and the discharge gas is encapsulated, the light emitting portion including a bulb having a tube formed in the center and the coil portion disposed inside the tube to form a magnetic field in the bulb, electrically connected to the coil portion to generate a high frequency signal Inverter module for switching the coil unit through, a housing for accommodating the inverter module therein, coupled between the light emitting unit and the housing, the seating portion on which the light emitting portion is seated, a circumference surrounding the outer periphery of the seating portion, a plurality formed protruding upward from the seating portion The first heat dissipation part and plate-like comprising a flange portion bent from the protrusions and the circumference of the protrusion protruding in the horizontal direction is seated on the projection of the first heat dissipation portion and the cable is electrically connected to the coil portion and the inverter module in the center A room including a second heat dissipation part having a hole formed therein and having a boss formed to protrude upwardly so as to be in line with the protrusion. A plurality of heat dissipation grooves comprising a heat part, a socket part coupled to the housing to transfer a voltage supplied from an external power source to the inverter module, and a coupling part detachably fastened to the flange part of the heat dissipation part, and a reflector extending from the coupling part to cover the outer circumference of the light emitting part; Disclosed is an electrodeless lighting device including a reflector assembled in a heat dissipation unit such that heat dissipation openings formed by protrusions and bosses are exposed to the outside.

Accordingly, in the present invention, heat generated during the driving of the inverter module and the high frequency discharge process of the light emitting unit is discharged to the outside through the heat radiating unit exposed from the reflecting shade, thereby improving heat dissipation efficiency.

Description

Electrodeless lighting device {ELECTRODELESS LIGHTING APPARATUS}

The present invention relates to an electrodeless lighting device, and more particularly, a high frequency discharge and an inverter of a light emitting unit including a flange portion protruding so that a heat shield is coupled between an inverter module and a light emitting unit, and a reflection shade is detachably attached to a front end of the heat radiating unit. It is an object of the present invention to provide an electrodeless illumination device in which the heat generated by the driving of the module is efficiently discharged.

In general, the Electrodeless Lighting Apparatus is configured to emit light by exciting the fluorescent material inside the bulb by using a high frequency discharge instead of the electrode inside the bulb, and has a longer life and energy efficiency than the lighting device having the electrode. Because of this high, it is a trend that has recently been spotlighted as a next-generation light source.

Conventional electrodeless lighting device includes a light emitting unit coated with a phosphor and a gas-filled bulb and a ferrite core mounted on the outer periphery of the bulb, an inverter module supplying a voltage to the light emitting unit to turn on the light emitting unit, and an external power source; And a socket portion electrically connected to supply power to the interleaver module. That is, in the electrodeless lighting device, the inverter module is driven by being connected to an external power source through the socket part, and transmits a high frequency signal to the light emitting part to cause discharge. When the ferrite core of the light emitting unit is switched at a high frequency through the inverter module, a magnetic field is formed in the bulb. Thus, the encapsulation gas inside the bulb causes discharge and the phosphor is excited to emit light.

The conventional electrodeless lighting device has a problem in that high heat is generated during the driving of the inverter module and the high frequency discharge process of the light emitting unit, so that the driving characteristics of the inverter module are lowered and the reliability as the lighting device is lowered. In order to solve such a conventional problem, a solution such as interposing a heat sink in an inverter module has been studied. However, in the conventional electrodeless lighting device, since a reflection shade installed to form a constant illuminance is connected to the upper part or the side of the socket part, Since the reflector is made of a structure surrounding the inverter module, it is difficult to maintain heat dissipation performance because heat is not completely released from the reflector.

The present invention is to solve the above-mentioned conventional problems, in particular, the radiating unit is coupled between the inverter module and the light emitting unit, and the high frequency discharge and the inverter of the light emitting unit including a flange portion protruding so that the reflection shade is detachable to the front end of the radiating unit It is an object of the present invention to provide an electrodeless illumination device in which the heat generated by the driving of the module is efficiently discharged.

In the electrodeless lighting device according to the present invention, a phosphor is coated on an inner wall, a discharge gas is sealed, a bulb 111 having a tube 111a formed at a central portion thereof, and a tube 111a disposed inside the tube 111a and having a magnetic field in the bulb 111. Light emitting units 110 and 210 including a coil unit 113 forming an inverter, an inverter module 120 electrically connected to the coil unit 113 to switch the coil unit 113 through a high frequency signal, and the inverter A housing 130 accommodating the module 120 therein, the light emitting units 110 and 210 are coupled between the housing 130, and the light emitting units 110 and 210 are seated and a plurality of heat dissipation grooves h21. A plurality of protrusions protruding upward from the seating parts 141a and 241a formed radially, the periphery parts 141b and 241b surrounding the outer periphery of the seating parts 141a and 241a, and the seating parts 141a and 241a. 141c and 241c and the flange portions 142 and 242 that are bent from the peripheral portions 141b and 241b and protrude in the horizontal direction. The first heat dissipation unit 141 and 241 including a plate-like, is mounted on the projections (141c, 241c) of the first heat dissipation unit (141, 241) and the coil portion 113 and the inverter module 120 in the center The heat radiation including the second heat dissipation parts 143 and 243 having a boss 143a protruding upwardly so as to form a hole h1 through which the cable C electrically connecting the wire C penetrates. The flanges 142 of the socket 140 and the heat dissipating unit 140 and 240 are coupled to the housing 140 and 240, the socket 130 to be coupled to the housing 130, and transmit a voltage supplied from an external power source to the inverter module 120. , 242 consists of coupling parts 161 and 261 detachably fastened, and reflectors 163 and 263 extending from the coupling parts 161 and 261 and surrounding the outer circumference of the light emitting parts 110 and 210. Heat dissipation openings formed by a plurality of heat dissipation grooves h21 and the protrusions 141c and the boss 143a are exposed to the outside. In that it comprises a reflector (160, 260) are assembled to lock the heat radiation unit 140 is characterized.

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In addition, the coupling portion 161, 261 has a cross-sectional shape of the 'c' shape, the flange portion 142, 242 is fitted into the 'c'-shaped groove portion (161h) of the coupling portion (161, 261). Can be combined. Here, the flange portion 242 may be formed in the end is bent in the 'b' shape.

In the electrodeless lighting device according to the present invention, a heat radiating part is provided between a light emitting part and an inverter module, and a flange part protruding in a horizontal direction is formed at a front end of the radiating part to drive and drive the light emitting part of the inverter module through a radiating part exposed from a reflector. Since heat generated in the high frequency discharge process is discharged to the outside, the heat radiation efficiency is improved.

In addition, the present invention is the assembly space of the inverter module and the light emitting unit is separated on the basis of the reflection shade, the heat generated through the light emitting portion is discharged to the outside through the heat radiating portion or partially blocked through the reflection shade to prevent deterioration of the inverter module and to prevent the discharge of the light emitting portion. Light emission performance is improved.

In addition, the reflection shade is fitted and coupled to the flange portion, there is an effect that is free to replace and install the reflection shade as needed, without the need for installing a separate fastening member.

Hereinafter, the electrodeless lighting device according to the present invention will be described in detail with reference to the accompanying drawings and embodiments. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

First, an electrodeless lighting device according to an embodiment of the present invention will be described.

1 is a perspective view showing an electrodeless lighting device according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing an electrodeless lighting device according to an embodiment of the present invention.

1 and 2, the electrodeless lighting device 100 according to an embodiment of the present invention includes a light emitting unit 110, an inverter module 120, a housing 130, a heat dissipating unit 140, It may include a socket portion 150 and the reflection shade 160.

First, the light emitting unit 110 includes a bulb bulb 111 and a coil 113 of a conventional bulb shape as a portion that emits light of a predetermined illuminance. Phosphors (not shown) are coated on the inner wall of the bulb 111, and discharge gas such as argon may be enclosed therein and include a tube 111 a formed to extend inward from the center thereof. A rod-shaped coil portion 113 is inserted into the tube 111a of the bulb 111, and the coil portion 113 is surrounded by a high frequency signal (voltage or current) transmitted from the inverter module 120 to be described below. Form a magnetic field. Accordingly, in the light emitting unit 110, the discharge gas inside the bulb 111 is discharged by the magnetic field formed from the coil unit 113, and the phosphor is excited by the discharge gas to emit light.

The inverter module 120 is a circuit module for transmitting a high frequency signal to the light emitting unit 110, and more specifically, may be electrically connected to the coil unit 113. That is, the inverter module 120 may be driven by receiving external power through the socket 150 to be described below to generate a high frequency signal necessary for light emission of the light emitting unit 110, thereby switching the coil unit 113 to high frequency. .

The housing 130 has a heat dissipation unit 140 assembled at one end 130a, a socket unit 150 assembled at the other end 130b, and accommodates the inverter module 120 therein. In more detail, the housing 130 includes a support part 131 on which the inverter module 120 is seated and a cover part 133 that is fitted to the support part 131 to surround the inverter module 120. The supporting part 131 of the inverter module 120 may have a hole h1 through which the cable C may pass for electrical connection between the coil part 113 and the inverter module 120. In addition, a screw hole h12 may be further formed on the inner circumference of the supporting part 131 to screw the heat radiating part 140 to be described later. On the other hand, the other end 130b of the housing 130 may be further provided with a heat dissipation hole for dissipating heat generated from the inverter module 120 is not limited to this in the present invention.

The heat dissipation unit 140 is formed to discharge heat generated by the driving of the light emitting unit 110 and the inverter module 120. In more detail, the heat dissipation unit 140 includes a first heat dissipation unit 141 on which the light emitting unit 110 is seated, and a second heat dissipation unit 143 coupled to the housing 130. First, the first heat dissipation part 141 includes a seating part 141a on which the light emitting part 110 is mounted and a circumferential part 141b surrounding the outer circumference of the seating part 141a. In the seating part 141a, a seating groove h2 in which the coil part 113 exposed from the bulb 111 can be seated is formed in the center, and a plurality of heat dissipation grooves h21 are formed radially around the seating groove h1. It includes. In addition, the first heat dissipation part 141 includes a plurality of protrusions 141c protruding upward from the seating part 141a and a flange part 142 bent from the circumference part 141b and protruding in the horizontal direction. The plurality of protrusions 141c may further include a groove h22 into which a fastening member s such as a screw may be inserted for assembly with the housing 130. The second heat dissipation part 143 is formed in a substantially circular plate shape and is assembled to be seated on the protrusion 141c of the first heat dissipation part 141. The second heat dissipation unit 143 may have a hole h3 through which a cable C for electrically connecting the coil unit 113 and the inverter module 120 may pass. In addition, the second heat dissipation unit 143 includes at least two bosses 143a and bosses protruding upward to form a line with the protrusion 141c of the first heat dissipation unit 141. Accordingly, the support part 131, the first heat dissipation part 141, and the second heat dissipation part 143 of the housing 130 through the fastening member s penetrating the screw hole h12 of the support part 131. Can be screwed sequentially. However, in the present invention, the coupling form of the housing 130 and the heat dissipation unit 140 is not limited thereto. According to the present invention, the first heat dissipation part 141 includes a flange part 142 formed at the front end portion where the light emitting part 110 is assembled such that the reflector 160 to be described below is detachable to the flange part 142. Can be. A detachable structure of the flange portion 142 and the reflector 160 will be described in more detail with reference to the other drawings below. In the present invention, the heat dissipation unit 140 is interposed between the light emitting unit 110 and the inverter module 120 serves to discharge the heat generated during their driving to the outside. That is, the heat dissipation unit 140 emits heat through the plurality of heat dissipation grooves h21, and heat may also be discharged through an interval spaced through the plurality of protrusions 141c and the boss 143a after assembly.

The socket 150 is coupled to the other end 130b of the housing 130 and has a terminal shape that is electrically connected to an external power source (not shown). The socket part 150 may be fitted to the housing 130 and serves to transfer a voltage supplied from an external power source to the inverter module 120 inside the housing 130.

The reflection shade 160 is coupled to the heat dissipation unit 140 to surround the outer periphery of the light emitting unit 110 to help the electrodeless lighting device 100 maintains a constant illuminance. According to the present invention, the reflection shade 160 extends from the coupling portion 161 and the coupling portion 161 which are configured to be coupled to the flange portion 142 of the heat dissipation portion 140 and surrounds the light emitting portion 110 in a predetermined region ( 163). Coupling portion 161 may be formed in a removable form at the end of the flange portion 142. The shape of the coupling unit 161 will be described in more detail with reference to the other drawings below. Meanwhile, the reflector 163 may be formed in various forms according to the design of a person skilled in the art, such as a spherical hemispherical shape in addition to the shade shape, but is not limited thereto. According to the present invention, since the reflector 160 is assembled at the end of the heat dissipation unit 140, heat generated from the light emitting unit 110 and the inverter module 120 may be maintained since the heat dissipation unit 140 may be kept open. Can be effectively released. In addition, since the reflector 163 surrounds the light emitting unit 110, since the space in which the light emitting unit 110 and the inverter module 120 are formed based on the reflector 160 is separated, the heat generated from the light emitting unit 110 is reduced. It may be transmitted to the inverter module 120 to prevent circuit damage such as internal circuit degradation.

Hereinafter, a detachable structure of the heat dissipation unit 140 and the reflector 160 according to an embodiment of the present invention will be described with reference to other drawings.

Referring to FIG. 3, a main portion coupling cross-sectional view illustrating a detachable structure of the heat dissipation unit 140 and the reflector 160 according to an embodiment of the present invention is illustrated.

As shown in FIG. 3, the light emitting unit 110 is assembled to the heat dissipating unit 140, and the reflector 160 is mounted through the flange portion 142 of the front end portion of the first heat dissipating unit 141. The flange portion 142 is bent to protrude in the horizontal direction from the circumference portion 141b. According to the present invention, the protruding flange portion 142 is equipped with a coupling portion 161 of the reflection shade 160, the coupling portion 161 is a flange portion in the groove portion 161h made of a cross-sectional shape of approximately 'C' shape 142 is made to fit. The flange portion 142 may be designed to have a sufficient length and sufficient strength so that the reflection shade 160 does not escape. In addition, the flange portion 142 and the coupling portion 161 may be fixed by screws or the like to make the mounting of the reflection shade 160 more secure, but the present invention is not limited thereto. Accordingly, in the present invention, the heat radiating unit 140 is assembled to be exposed from the reflector 160 so that heat generated by the driving of the light emitting unit 110 and the inverter module 120 is easily discharged.

 According to the embodiment of the present invention described above, the electrodeless lighting device 100 forms a flange portion 142 at the front end of the heat dissipation portion 140, so that the reflector 160 is attached to and detached from the flange portion 142. The heat dissipation efficiency is improved, and the reliability of driving the electrodeless lighting device 100 is improved. In more detail, heat generated during the driving of the inverter module 120 and the high frequency discharge of the light emitting unit 110 is discharged to the outside through the heat radiating unit 140 exposed from the reflector 160. In addition, unlike the conventional structure in which the reflection shade surrounds the entire lighting device, since the assembly space of the inverter module 120 and the light emitting portion 110 is separated based on the reflection shade 160, the light emitting portion 110 is provided. Heat generated is prevented from affecting the inverter module 120. That is, heat generated through the light emitting unit 110 may be released to the outside through the heat radiating unit 140 or partially blocked through the reflector 160. In addition, the heat dissipation unit 140 may include the first heat dissipation unit 141 and the second heat dissipation unit 143 to efficiently discharge heat through the heat dissipation opening formed by the protrusion 141c and the boss 143a. have. Accordingly, the present invention can provide the electrodeless illumination device 100 having improved heat dissipation efficiency and reliability added to light emission performance by driving and discharging the inverter module 120.

On the other hand, in the present invention, the reflection shade 160 is fitted with the flange portion 142 and is more convenient to use because it is free to replace and install the reflection shade 160 as necessary without installing a separate fastening member.

Next, an electrodeless lighting device according to another embodiment of the present invention will be described.

Referring to FIG. 4, there is shown a main coupling cross-sectional view of an electrodeless lighting device according to another embodiment of the present invention. In other embodiments of the present invention, except for the heat dissipating part 240 and the reflection shade 260, the other parts are the same as those of FIGS. 1 to 3, and thus, the electrodeless lighting device 100 of FIGS. The differences will be explained mainly.

As shown in FIG. 4, the light emitting part 210 is assembled to the heat dissipating part 240, and the reflection shade 260 is mounted to the flange part 242 of the first heat dissipating part 241. That is, the heat dissipation part 240 includes a first heat dissipation part 241 on which the light emitting part 210 is seated, and a second heat dissipation part 243 assembled to the housing (see 130 of FIG. 2). The flange portion 242 is formed at the front end of the 241. At this time, the flange portion 242 is bent from the peripheral portion 241b surrounding the outer periphery of the seating portion 241a. The flange portion 242 protruding in the horizontal direction from the circumference portion 241b is bent in a 'b' shape to be fitted to the reflection shade 260. The reflector 260 includes a coupling part 261 having a cross-sectional shape of a letter 'C' rotated about 90 degrees and a reflector 263 surrounding the outer circumference of the light emitting part 210. An end of the bent flange portion 242 is inserted into the groove portion 261h of the coupling portion 261, and the heat dissipation portion 240 and the reflector 260 are integrally assembled.

According to another embodiment of the present invention described above, the end portion of the flange portion 242 is bent to be combined with the reflection shade 260 to improve the fastening strength between the flange portion 242 and the reflection shade 260. Although not shown, the flange portion 242 is formed in a form where the end portion is bent in a 'c' shape for safe fastening with the reflection shade 260, or the hook member 260 does not leave the electrodeless lighting device. Not shown), but the present invention is not limited thereto. Since the basic operation according to another embodiment of the present invention is the same as the electrodeless illumination device 100 of FIGS. 1 to 3, the detailed description will be described with reference to one embodiment of FIGS. 1 to 3.

The present invention is not limited to the above specific preferred embodiments, and any person skilled in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention as claimed in the claims. Of course, such changes are within the scope of the claims.

1 is a perspective view of an electrodeless lighting device according to an embodiment of the present invention.

Figure 2 is an exploded perspective view of the electrodeless lighting device according to an embodiment of the present invention.

Figure 3 is a main portion coupling cross-sectional view showing a removable structure of the heat dissipating portion and the reflecting shade according to an embodiment of the present invention.

4 is a cross-sectional view of main parts of an electrodeless lighting device according to another embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: electrodeless lighting device 110, 210: light emitting unit

120: inverter module 130: housing

140, 240: heat dissipation part 142, 242: flange part

150: socket portion 160, 260: reflection shade

Claims (4)

Phosphor is applied to the inner wall and the discharge gas is sealed, and the bulb 111 having the tube 111a formed at the center and the coil portion 113 disposed inside the tube 111a to form a magnetic field in the bulb 111 are formed. Light emitting units 110 and 210 including; An inverter module 120 electrically connected to the coil part 113 to switch the coil part 113 through a high frequency signal; A housing 130 accommodating the inverter module 120 therein; Coupled between the light emitting unit 110 and 210 and the housing 130, the light emitting unit 110, 210 is seated and a plurality of heat dissipation groove (h21) formed in the mounting portion (141a, 241a), the From the circumferences 141b and 241b surrounding the outer circumference of the seating portions 141a and 241a, a plurality of protrusions 141c and 241c protruding upward from the seating portions 141a and 241a and the circumferences 141b and 241b. The first heat dissipation unit 141 and 241 including the flanges 142 and 242 which are bent and protruded in the horizontal direction, and are formed in a plate shape, and are seated on the protrusions 141c and 241c of the first heat dissipation unit 141 and 241. A boss 143a is formed at a central portion thereof and has a hole h1 through which the cable C electrically connecting the coil unit 113 and the inverter module 120 passes. The boss 143a protrudes upward to form a straight line with the protrusion 141c. Heat dissipation parts 140 and 240 including second heat dissipation parts 143 and 243; A socket part 150 coupled to the housing 130 to transfer a voltage supplied from an external power source to the inverter module 120; And Coupling parts 161 and 261 to which the flange parts 142 and 242 of the heat dissipation parts 140 and 240 are detachably fastened, and extend from the coupling parts 161 and 261 to the light emitting parts 110 and 210. Comprising an outer circumference of the reflector (163, 263), the heat dissipation portion 140 so that the heat dissipation opening by the gap formed by the plurality of heat dissipation groove (h21) and the projections (141c) and the boss (143a) is exposed to the outside. Electrodeless lighting device comprising a reflector (160, 260) is assembled to). delete The method of claim 1, The coupling parts 161 and 261 have a cross-sectional shape of a 'c' shape, The flange portion (142, 242) is an electrodeless lighting device, characterized in that the fitting portion is fitted into the '' 'groove portion (161h) of the coupling portion (161, 261). The method of claim 3, wherein The flange portion 242 is an electrodeless lighting device, characterized in that the end is formed in a 'b' shape bent.

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