JP4394404B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture having a ring-shaped fluorescent lamp, and more particularly to a lighting fixture in which a double-ring-type fluorescent lamp dedicated to high-frequency lighting is simultaneously mounted in the fixture main body in the same manner as a single-ring fluorescent lamp dedicated to high-frequency lighting.

  Conventionally, lighting fixtures using a ring-shaped fluorescent lamp use one or a combination of so-called ordinary ring-shaped fluorescent lamps (FCL lamps), or a single-ring-type fluorescent lamp dedicated to high-frequency lighting for improving light output characteristics. There are lamps that use lamps (FHC lamps), dual-ring fluorescent lamps (FHD lamps) dedicated to high-frequency lighting, and combinations of these.

  In recent years, in particular, it has been required to improve the light output characteristics and to reduce the mounting space of the luminaire, and a single ring fluorescent lamp (FHC lamp) dedicated to high frequency lighting and a double ring fluorescent lamp (FHD lamp dedicated to high frequency lighting). ) Have been proposed (see, for example, Patent Document 1).

Japanese Patent Application No. 2003-165001 ([0018], FIG. 1)

  As described above, the FHC lamp formed with a large diameter is used in the lighting fixture in which the single ring fluorescent lamp (FHC lamp) dedicated to high frequency lighting and the double ring fluorescent lamp (FHD lamp) dedicated to high frequency lighting are mounted in combination. And the FHD lamps formed with a small diameter are arranged on the same plane, and when they are combined, there is a combination whose dimensions are very close to each other. There was a need to minimize the effects of heat. In order to maximize the luminous efficiency of the fluorescent lamps, it is necessary to combine fluorescent lamps having good luminous efficiency.

  The present invention has been made in order to solve the above-described problems. In the luminaire, a single-ring fluorescent lamp (FHC lamp) dedicated to high-frequency lighting and a double-ring fluorescent lamp (FHD lamp) dedicated to high-frequency lighting are arranged in combination. The purpose is to suppress the influence of heat and improve consumption efficiency.

  The present invention provides a lighting apparatus in which a single-ring fluorescent lamp (FHC lamp) dedicated to high-frequency lighting and a double-ring fluorescent lamp (FHD lamp) dedicated to high-frequency lighting are simultaneously incorporated in the apparatus body at the same time. The positions of the FHC lamp and the FHD lamp are respectively arranged at different height positions from the same plane, and an annular lamp having an inner diameter dimension of the FHC lamp larger than an outer diameter dimension of the FHD lamp is incorporated.

  Further, according to the present invention, in the lighting fixture in which the FHC lamp and the FHD lamp are incorporated in the fixture body, the positions of the lamp base of the FHC lamp and the lamp base of the FHD lamp are shifted around the centers of the respective lamps. And the lamp bases are separated from each other, and the coldest spot position of the FHC lamp and the coldest spot position of the FHD lamp are shifted around the center of the respective lamps at different positions. The distance is set apart.

  According to the present invention, in the lighting fixture in which the FHC lamp and the FHD lamp are incorporated in the fixture main body, a taper portion is provided on a peripheral surface of a portion disposed on the inner side of the FHC lamp of the reflector attached to the fixture main body. By forming the taper portion on the reflecting plate, a gap is formed between the taper portion and the FHD lamp so that light from the FHC lamp passes through toward the center of the instrument body.

  According to the present invention, the influence of heat generated from the fluorescent lamps can be reduced by increasing the distance between the FHC lamp and the FHD lamp and by shifting the positions of the respective lamp bases to different positions. It can be made difficult to receive, and the position of the coldest point where the consumption efficiency deteriorates when receiving heat due to the temperature characteristics of the fluorescent lamp can be prevented from becoming high temperature. Furthermore, the fluorescent lamps can be easily replaced by providing a distance between the fluorescent lamps.

  In addition, when the FHC lamp is set at a position lower than the FHD lamp (FIG. 1), when only the FHC lamp is turned on, the light from the FHC lamp is blocked by the reflector and the FHD lamp becomes a shadow so that the central portion of the instrument body is Since it becomes dark, a gap can be formed by providing a tapered portion in the shape of the reflector, and the influence of the shadow can be suppressed by causing light to wrap around the central portion of the instrument body.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an outline of a lighting fixture according to the present invention.

  As shown in FIG. 1, the lighting fixture of the present invention includes a single-ring fluorescent lamp (FHC lamp 1) dedicated to high-frequency lighting and a double-ring fluorescent lamp (FHD lamp 2) dedicated to high-frequency lighting. It has a structure that is mounted at the same time. The FHC lamp 1 and the FHD lamp 2 are not arranged on the same plane, but are arranged with their positions shifted by H in the height direction as shown in FIG. Further, the lamps have a structure in which lamps having an inner diameter dimension D1 of the FHC lamp 1 larger than an outer diameter dimension D2 of the FHD lamp 2 are combined.

  Here, the schematic structure of the FHC lamp 1 and the FHD lamp 2 used in the present invention will be described. First, as shown in the plan view of FIG. 2, the FHC lamp 1 has filaments 7a and 7b at both ring ends of the ring lamp, and both ring ends are formed by a lamp base 5 which is a resin cylindrical member. It is a structure held together. The filament 7b is provided at a position (high mount side) where the distance from the end of the annular lamp is higher than that of the filament 7a, and the coldest spot position 10 related to the luminous efficiency is near the tube end root portion on the high mount side. Come to come.

  Further, as shown in the plan view of FIG. 3, the FHD lamp 2 has a double ring shape in which a small ring fluorescent lamp 2a and a large ring fluorescent lamp 2b are arranged concentrically, and the small ring fluorescent lamp 2a and the large ring fluorescent lamp are arranged. The two ring ends of 2b are connected and held by a resin lamp base 6 that integrally surrounds and holds them. In the vicinity of one side of the lamp base 6, there is provided a lamp bridge portion 9 for connecting the discharge paths of the small ring type fluorescent lamp 2a and the large ring type fluorescent lamp 2b, and at the ring end portion on the other side, a small ring type fluorescent lamp is provided. A filament 8a is provided on the lamp 2a, and a filament 8b is provided on the large ring fluorescent lamp 2b. The coldest spot position 11 is in the vicinity of the lamp bridge portion 9.

  In the lighting fixture of the present invention having the FHC lamp and the FHD lamp having the above structure, the positions of the FHC lamp 1 and the FHD lamp 2 are arranged at different height positions with respect to the fixture body 4 as shown in FIG. Thus, according to the present invention, the distance between the FHC lamp 1 and the FHD lamp 2 can be reduced compared to the combination in which the distance between the FHC lamp 1 and the FHD lamp 2 is very close when arranged on the same plane. You can have it.

  Next, when the FHC lamp 1 and the FHD lamp 2 are combined in the lighting fixture described in FIG. 1, as shown in FIG. 4, the lamp base 5 and the lamp base 6 are placed at different positions (for example, an angle θ with respect to the center position of the fixture body). (90 degrees to 180 degrees). That is, they are arranged at least sufficiently away from the filament positions.

  By arranging in this way, it is possible to avoid mutual influence of heat in the vicinity of the filament where the temperature is highest among the respective lamp surfaces. Further, as shown in FIG. 5, due to the temperature characteristics of the fluorescent lamp, the coldest spot position 10 (FHC lamp 1 side) and the coldest spot position 11 (FHD lamp 2 side) where the consumption efficiency deteriorates when receiving heat are high. Can be prevented. Since the coldest spot position 10 is in the vicinity of the lamp base 5 and the coldest spot position 11 is in the vicinity of the lamp base 6, the coldest spot position 10 and the coldest spot position 10 are separated by increasing the distance between the lamp base 5 and the lamp base 6. The distance between the cold spot positions 11 can also be separated at the same time.

  Since the fluorescent lamp to be used is a combination of lamps in which the inner diameter of the FHC lamp 1 is larger than the outer diameter of the FHD lamp 2, the consumption efficiency (the luminous flux per 1 W of power consumption: the amount of light emitted from the lamp) can be increased. it can. In the case of an annular lamp, the power consumption per unit is relatively high, so that the power consumption is better. Therefore, in the case of a combination of an FHC lamp and an FHD lamp, the power consumption of the FHD lamp is the same if the outer diameter is the same. Since it is large, the combination with the FHC lamp outside increases the consumption efficiency.

  Next, in the luminaire described with reference to FIG. 1, the reflecting plate 3 is provided with a tapered portion 12 as shown in the cross-sectional view of FIG. 6, and the light 13 from the FHC lamp 1 is transmitted between the FHD lamp 2 and the reflecting plate 3. It tries to pass through the gap. Thus, the provision of the tapered portion 12 on the reflector 3 allows the light 13 to reach the inside of the FHD lamp 2 and minimizes the influence of the shadow of the FHD lamp 2 that occurs when only the FHC lamp 1 is turned on. Can be limited.

  That is, when a lighting fixture is attached to the ceiling as shown in FIG. 6 and the FHC lamp 1 is set to a position H higher than the FHD lamp 2, when only the FHC lamp 1 is lit, the reflecting plate 3 is not provided with the tapered portion 12. In some cases, the light 13 from the FHC lamp 1 toward the center of the instrument body is blocked by the reflector 3, and the FHD lamp 2 is shaded to darken the center of the instrument body. In order to avoid this, a taper portion 12 is formed on the reflecting plate 3, and the light 13 wraps around the central portion of the instrument body by pressing the shadow of the FHD lamp 2.

  The taper portion 12 is formed on the peripheral surface of the portion of the reflector 3 that is disposed inside the FHC lamp 1. By forming the taper portion 12 on the reflector 3, the light 13 from the FHC lamp 1 is transmitted to the instrument. A gap for passing through toward the center of the main body is formed between the taper portion 12 and the FHD lamp 2, so that a lighting device with good light efficiency can be obtained.

  In the case of a luminaire that combines an FHC lamp and an FHD lamp, the higher the power consumption per lamp, the better the power consumption. Therefore, if the outer diameter is the same, the FHD lamp consumes more power. . Therefore, as in the present invention, the combination in which the FHC lamp is on the outside is more efficient in consumption and can provide a lighting apparatus having a large energy saving effect.

It is a perspective view which shows the outline | summary of the lighting fixture which concerns on this invention. It is a top view of a FHC lamp. It is a top view of a FHD lamp. It is a perspective view which shows embodiment of this invention. It is a top view which shows embodiment of this invention. It is sectional drawing which shows embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 FHC lamp 2 FHD lamp 2a Small ring type fluorescent lamp 2b Large ring type fluorescent lamp 3 Reflector plate 4 Apparatus body 5, 6 Lamp base 7a, 7b Filament 8a, 8b Filament 9 Lamp bridge part 10, 11 Coldest point position 12 Tapered part 13 light

Claims (4)

In a lighting fixture in which a single-ring fluorescent lamp (FHC lamp) dedicated to high-frequency lighting and a double-ring fluorescent lamp (FHD lamp) dedicated to high-frequency lighting are integrated in the fixture body at the same time, the FHC lamp and FHD Place the lamps at different heights on the same plane ,
Forming a taper portion on the peripheral surface of the portion of the reflector mounted on the instrument main body and disposed inside the FHC lamp;
By forming the taper portion on the reflector, a gap is formed between the taper portion and the FHD lamp so that the light from the FHC lamp passes through toward the center of the instrument body. Instruments.   2. The illumination according to claim 1, wherein the FHC lamp and the FHD lamp are incorporated in a fixture main body, and ring lamps each having a larger FHC lamp inner diameter than an outer diameter of the FHD lamp are incorporated. Instruments.   In the lighting fixture in which the FHC lamp and the FHD lamp are incorporated in the fixture body, the positions of the lamp base of the FHC lamp and the lamp base of the FHD lamp are shifted around the center of each lamp, and are arranged at different positions. The lighting fixture according to claim 1, wherein the bases are separated from each other.   In the lighting fixture in which the FHC lamp and the FHD lamp are incorporated in the fixture body, the coldest spot position of the FHC lamp and the coldest spot position of the FHD lamp are shifted around the center of each lamp and are arranged at different positions. The lighting fixture according to claim 1, wherein the coldest spot positions are spaced apart from each other.

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