KR20020059536A - The microwave lighting apparatus - Google Patents

Abstract

PURPOSE: A magnetron integrated illumination system is provided, in which resonant light emitting unit is arranged in serial to the magnetron, to thereby simplify configuration and reduce volume of illumination system. CONSTITUTION: A magnetron integrated illumination system comprises a case(50) forming an outer appearance; a microwave generating unit(60) installed within the case; a resonant light emitting unit(70) installed within the case, and which emits light from a non-electrode plasma bulb(75) by the microwave transmitted through an antenna(66) from the microwave generating unit; an illuminating light emitting unit(80) arranged at the top of the case, and which cuts off microwave and radiates, to outside, the light generated from the resonant light emitting unit; and a cooling fin(79) arranged around the resonant light emitting unit and the microwave generating unit.

Description

Magnetron integrated microwave lighting device {THE MICROWAVE LIGHTING APPARATUS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting apparatus using microwaves, and more particularly, to a magnetron-integrated microwave lighting apparatus which can simplify the structure of the overall lighting system and realize miniaturization by constructing a light emitting unit that generates light through an electrode plasma bulb integrally with the magnetron. will be.

Microwave luminaires are devices that apply microwaves to an electrodeless plasma bulb to emit visible or ultraviolet light therefrom. The microwave luminaire has a longer lamp life and superior lighting effects than conventional incandescent or fluorescent lamps.

1 is a cross-sectional view showing the internal structure of the microwave illumination device.

The microwave lighting device includes a magnetron (1) for generating microwaves, a waveguide (3) for transmitting microwaves from the magnetron (1), and a material encapsulated therein by the microwave energy transmitted through the waveguide (3). It consists of a light bulb 5 to generate light and a resonator 10 to cover the waveguide 3 and the front of the light bulb 5 to block the microwaves while passing the light emitted from the light bulb 5.

Such a microwave lighting device has a high pressure generator 7 for boosting the commercial AC power to the magnetron 1 at a high pressure in the basic structure as described above, and cooling the magnetron 1 and the high pressure generator 7 and the like. Cooling device 9 and a reflecting mirror 11 for intensively reflecting the light generated by the bulb 5 forward.

In the microwave lighting apparatus as described above, when a driving signal is input to the high voltage generator 7, the high voltage generator 7 boosts AC power from the outside to supply the boosted voltage to the magnetron 1.

The magnetron 1 generates a microwave having a very high frequency while oscillating by the high pressure supplied from the high pressure generator 7, and the generated microwave is radiated into the resonator 10 through the waveguide 3 The encapsulated material in (5) is discharged to generate light having a unique emission spectrum.

As such, the light generated from the bulb 5 is reflected forward through the mirror 12 and the reflector 11 to illuminate the space.

However, the microwave lighting apparatus of the related art as described above has a waveguide 3 for transmitting microwaves from the magnetron 1 and a resonator 10 protruding in front of the waveguide 3 to form a resonance region. The back is provided separately and the cooling device 9 is installed at the back of the case, so that the overall structure of the lighting system is complicated and the production cost increases, and the volume of the lighting system is large, which takes up a lot of installation space. have.

The present invention has been made to solve the above problems, by configuring the resonance light emitting unit in series with the magnetron to generate light through the electrodeless plasma bulb, the structure of the overall lighting system is simplified, the volume is reduced to space An object of the present invention is to provide a magnetron-integrated microwave illuminating device that can be easily installed without restriction.

1 is a cross-sectional view showing a microwave lighting apparatus of the prior art,

2 is a cross-sectional view showing a magnetron integrated microwave lighting apparatus according to the present invention,

3 is a cross-sectional view taken along the line A-A of FIG. 2.

<Explanation of symbols for the main parts of the drawings>

50: case 51: front case

52: rear case 55: filter box

60: microwave generator 61: anode

62: anode body 63: vane

64: strap 65: cathode

66: antenna 66a: stub

67, 68: permanent magnet 69: cooling fin

70 resonant light emitting unit 71 resonant cylinder

73: vane 75: light bulb

79: cooling fin 80: illumination light exit unit

83: screen

The magnetron integrated microwave illumination device of the present invention for realizing the above object, and a case forming the outer periphery; A microwave generator installed inside the case to generate microwaves; A resonance light emitting unit which is partitioned from the microwave generating unit inside the case and transmits microwaves through the antenna from the microwave generating unit to emit light by emitting an electrodeless plasma bulb; It is provided on one side of the case is characterized in that it comprises an illumination light emitting unit for emitting light emitted from the resonance light emitting unit to the outside while blocking the microwave.

The resonance light emitting unit is a resonant cylinder having a cylindrical shape with the illumination light emitting part open, a vane arranged in a radial structure toward the center from the inner surface of the resonant cylinder, and positioned in the center of the vane by microwave It is made of a light bulb that emits light as plasma is generated.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

2 is a cross-sectional view showing a magnetron integrated microwave lighting apparatus according to the present invention, Figure 3 is a cross-sectional view taken along the line A-A of FIG.

The magnetron integrated microwave lighting device of the present invention includes a case 50 forming an outline, a microwave generator 60 installed inside the case 50 to generate microwaves, and the inside of the case 50. A resonant light emitting unit 70 which is partitioned from the microwave generating unit 60 and transmits microwaves from the microwave generating unit 60 through the antenna 66 so that the electrodeless plasma bulb 75 emits light to generate light; It is provided on the upper side of the case 50 to block the microwave while the light emitted from the resonance light emitting unit 70 emits light to the outside 80, the resonance light emitting unit 70 and the microwave generating unit 60 It is composed of cooling fins 79 that are respectively installed around the periphery to perform a cooling action.

In the case 51, the front case 51 and the rear case 52 are assembled to each other, the front case 51 is provided with the illumination light emitting unit 80, the rear case 52 A filter box 55 is connected to the microwave generator 60 and connected to a high pressure generator (not shown) to apply a boosted voltage and perform a filter function.

Next, the microwave generator 60 has a cylindrical structure similar to the structure of a known magnetron.

The microwave generator 60 is an anode portion 61 that forms a resonant circuit of the vane 63 and the strap 64 therein when a certain amount of anode voltage and anode current is applied to the cylindrical anode body 62. And a cathode portion 65 installed at the center of the anode portion 61 to emit a large amount of hot electrons and to generate microwaves in a working space with the end of the vane 63, and the anode portion 61. And an antenna 66 for transmitting microwaves generated in the working space of the cathode portion 65 to the outside, and a permanent magnet installed at upper and lower portions of the anode body 62 of the anode portion 61 to form a magnetic closed circuit. It consists of (67) (68).

Next, the resonance light emitting unit 70 is arranged in a radial structure toward the center from the inner side of the resonant cylinder 71 formed of a cylindrical shape with the illumination light emitting unit 80 side open. A vane 73 and a light bulb 75 positioned at the center of the vane 73 to emit light while generating plasma by microwaves.

The vane 73 is connected to the microwave generator 60 and the antenna 66, and a stub 66a protrudes from the resonance light emitting unit 70 to the antenna 66, thereby resonating the light emitting unit 70. It is configured to facilitate the transmission of microwaves into.

Here, the microwave generator 60 and the resonance light emitting unit 70 are partitioned by a permanent magnet 67 located on the anode part 61 and the anode main body 62, and the antenna 66 is permanent. It is installed through the magnet 67.

As described above, the resonance light emitting unit 70 and the microwave generating unit 60 are connected in series in the vertical direction with the permanent magnet 67 interposed therebetween.

The bulb 75 is fixed in the resonance light emitting unit 70 through a support rod 76 fixed to the permanent magnet 67.

Next, the illumination light emitting unit 80 has an opening 51a formed at the front of the resonance light emitting unit 70 in the front case 51, so that microwaves are blocked and light can pass through the opening 51a. The screen 83 is provided.

The screen 83 is made of a metal mesh structure of a fixed mesh is fixed to the inside of the opening.

Next, the cooling fins 69 and 79 have a wave-like structure, and are assembled by a plurality of layers uniformly arranged at regular intervals between the anode body 62 and the resonant cylinder 71 and the case 50. The air cooling structure is formed within 50.

On the other hand, between the front case 51 and the resonant cylinder 71 of the resonant light emitting unit 70, a resonant cavity for forming a magnetic circuit in the resonant light emitting unit 70 to excite the encapsulation gas of the bulb 75 is actively active. A permanent magnet 77 may be installed to proceed, and a light exit hole 77a is formed in the permanent magnet.

Referring to the operation of the magnetron integrated microwave lighting device according to the present invention configured as described above are as follows.

When a certain amount of positive voltage and positive current is applied to the anode body 62 of the anode portion 61, a resonance circuit formed by the vane 63 and the strap 64 is formed inside the anode body 62 sealed in a vacuum state. It is composed.

When the resonant circuit is configured as described above, microwaves are generated in the working space between the end of the vane 63 and the filament, which is the cathode 65, and the microwaves are transmitted into the resonant light emitting unit 70 through the antenna 66.

At this time, the microwaves radiated into each of the resonance light emitters 70 may generate light having a unique spectrum while exciting the material encapsulated in the bulb 75 while forming a resonance cavity to generate plasma.

Light generated by the light bulb 75 is emitted to the outside through the screen of the illumination light emitting unit 80 to illuminate the illumination space.

Meanwhile, heat generated in the microwave generator and the resonance light emitting unit is cooled while being radiated to the outside through a cooling fin connected to the anode body or the resonance cylinder.

The magnetron integrated microwave lighting device of the present invention constructed and operated as described above has a resonance light emitting unit configured in series with the magnetron and configured to generate light through an electrodeless plasma bulb, thereby simplifying the structure of the overall lighting system and reducing the volume. This provides an advantage that can be easily installed without the constraint of space.

Claims (12)

A case forming an outline; A microwave generator installed inside the case to generate microwaves; A resonance light emitting unit which is partitioned from the microwave generating unit inside the case and transmits microwaves through the antenna from the microwave generating unit to emit light by emitting an electrodeless plasma bulb; The magnetron-integrated microwave illuminating device provided on one side of the case includes a light emitted from the light emitted from the resonance light emitting unit to block the microwave while radiating to the outside. The method of claim 1, The microwave generating unit has a cylindrical structure, an anode unit forming a resonant circuit therein, a cathode unit positioned at the center of the anode unit to generate microwaves between the anode unit, and the resonance light emitting unit at the anode unit. And a permanent magnet connected to the inside of the unit to transmit microwaves and permanent magnets positioned at upper and lower portions of the anode to form a magnetic closed circuit, respectively. The method of claim 2, The microwave generating unit and the resonance light emitting unit is partitioned by a permanent magnet located above the anode portion, the magnetron integrated microwave illumination device, characterized in that installed through the permanent magnet. The method of claim 3, wherein And the resonance light emitting unit and the microwave generating unit are positioned in series with the permanent magnet interposed therebetween. The method of claim 1, Magnetron integrated microwave lighting device is characterized in that the cooling means is connected to the case around the resonance light emitting unit and the microwave generating unit for cooling action. The method of claim 5, The cooling means is a magnetron integrated microwave lighting device, characterized in that the wave cooling fins arranged uniformly at regular intervals. The method of claim 1, The resonant light emitting unit includes a resonant cylinder having a cylindrical shape in which the illumination light emitting part is open, a vane arranged in a radial structure toward the center from the inner side of the resonant cylinder, and positioned at the center of the vane and the plasma is generated by microwaves. Magnetron integrated microwave lighting device, characterized in that consisting of a light bulb that emits light. The method of claim 7, wherein The vane is connected to the microwave generator and the antenna, the magnetron integrated microwave illumination device, characterized in that the stub protrudes in the resonance light emitting portion. The method according to claim 1 or 7, The bulb is a magnetron integrated microwave lighting device, characterized in that supported by a support rod to the partition structure between the resonance light emitting portion and the microwave generating portion. The method of claim 1, The illumination light emitting unit is a magnetron integrated microwave illumination device, characterized in that the opening is formed in front of the resonance light emitting unit in the case, the opening is provided with a screen to block the microwave and allow light to pass through. The method of claim 10, The screen is a magnetron integrated microwave illumination device, characterized in that the metal mesh structure. The method according to claim 1 or 10, Magnetron integrated microwave lighting device, characterized in that the permanent magnet is formed between the light emitting hole is formed between the case and the resonance light emitting unit is installed with the illumination light emitting unit.