JPH0617036U - Recessed luminaire - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the height of the equipment. Be sure to dissipate heat sufficiently. [Structure] A plurality of lamps 5 are housed in a box-shaped device body 1 whose lower surface is opened. The upper shoulders on both sides of the instrument body 1 are formed into slopes cut off diagonally. A ballast mounting plate 9 having a substantially inverted L-shaped cross section with a ballast 6 attached to the inside thereof is arranged on shoulders on both sides of the instrument body 1. The ballast mounting plate 9 is attached in contact with the upper surface and the side surface of the instrument body 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of an embedded lighting fixture that is embedded in a ceiling or the like and attached.

[0002]

[Prior art]

 Conventionally, this type of embedded luminaire is configured as shown in FIGS. 4 and 5. An opening 2 is provided on the upper surface of a box-shaped instrument body 1 whose lower surface is opened, and mounting pieces 3 are hung downward from both sides of the opening 2. A reflection plate 4 is attached to the lower end of the attachment piece 3, and a plurality of lamps 5 are attached to the lower surface side of the reflection plate 4. Two lamps 5 are set as one set, and four sets of lamps 5 are attached. A ballast 6 is attached to the inner corner of the upper corner of the equipment main body 1. A frame 7 is attached to the opening on the lower surface of the appliance body 1, a translucent lamp panel 8 is arranged in the opening on the lower surface of the appliance body 1, and the peripheral edge of the lamp panel 8 is supported by the frame 7.

[0003]

[Problems to be solved by the device]

 In the embedded luminaire of the above-mentioned conventional example, in consideration of improvement of workability and heat radiation effect, the structure has a backless structure on the upper surface, and the ballasts 6 are arranged at the left and right corners of the lamp 5. There is a problem that the height B of the main body 1 of the fixture is further higher than the distance A between the panel 8 and the height of the embedded lighting fixture.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an embedded lighting fixture that can reduce the height of the fixture.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the embedded luminaire of the present invention accommodates a plurality of lamps 5 in a box-shaped luminaire body 1 having an opening on the bottom surface, and a ballast accommodating portion at upper corners on both sides along the axis of the lamp 5. In the luminaire provided with the above, a ballast mounting plate 9 having a substantially inverted L-shaped cross section in which the shoulders on both sides of the luminaire body 1 are formed by obliquely cutting off and the ballast 6 is attached to the inside thereof is provided. It is characterized in that it is arranged on the shoulders on both sides of 1 and that a ballast mounting plate 9 is attached in contact with the upper surface and the side surface of the instrument body 1.

[0006]

[Action]

 According to the above configuration, the ballast 6 is attached to the outside of the fixture body 1 so that the ballast 6 can be shielded from the heat of the lamp 5, and the heat of the ballast 6 can be secured to both ends of the ballast mounting plate 9 in the longitudinal direction. The heat can be dissipated from the opening of the, and there is no need to have the back structure with the upper surface unlike the conventional case. Therefore, it is not necessary to increase the height of the instrument body 1 more than necessary.

[0007]

【Example】

 As shown in FIGS. 1 to 3, the instrument body 1 is formed in a box shape with an open lower surface, and the shoulders on both sides of the instrument body 1 are bent into a shape cut off diagonally. Thus, the ballast storage recess 10 is provided. The upper surface of the reflector plate 4 is attached in contact with the upper bottom surface of the instrument body 1, and a plurality of lamps 5 are attached to the reflector plate 4. This lamp 5 is provided in four sets with two sets as one set. The four sets of lamps 5 have different light colors, and four ballasts 6 are used to individually adjust the four kinds of lamps 5. The ballast mounting plate 9 has a substantially inverted L-shaped cross section and is formed in a length extending in the longitudinal direction of the device main body 1. The ballast 6 is mounted on the inner surface of the ballast mounting plate 9. The ballast mounting plate 9 is arranged on the shoulders on both sides of the device body 1 so as to cover the ballast housing recess 10 of the device body 1, and both pieces of the ballast mounting plate 9 are arranged on the upper surface and the side surface of the device body 1. And is attached to the instrument body 1 with the attaching screw 11. A translucent lamp panel 8 is arranged in the lower surface opening of the instrument body 1, and a peripheral edge of the lamp panel 8 is supported by a frame 7 attached to the lower end of the instrument body 1.

Further, in the case of the above equipment, since four sets of lamps 5 having different light colors are used, a large distance between the lamp 5 and the lamp panel 8 is set in order to reduce color unevenness on the surface of the lamp panel 8. The lamp 5 is attached to the upper surface of the instrument body 1. That is, it is necessary to make the height A between the lamp 5 and the lamp panel 8 higher than that of the conventional non-toning type so as to ensure the toning on the lamp panel 8. Since it can be provided on the upper surface of the instrument body 1, the height of the instrument body 1 can be the same as the conventional one. Further, since the ballast 6 is attached to the ballast mounting plate 9 and then fixed to the fixture body 1 to separate the ballast 6 from the fixture body 1, heat from the lamp 5 can be blocked from going to the ballast 6. The heat of the ballast 6 can also be radiated from the opening at the end of the ballast mounting plate 9 in the longitudinal direction as shown by the arrow in FIG.

[0009]

[Effect of device]

 As described above, the present invention forms a ballast mounting plate having a substantially inverted L-shaped cross-section with a ballast attached to the inside of the device body by forming diagonally cut off shoulders on both sides of the device body. Since the ballast mounting plate is placed on the shoulder of the instrument and is attached to the top and side surfaces of the fixture body, the ballast can be shielded from the heat of the lamp by attaching the ballast to the outside of the fixture body. The heat can be radiated from the openings at both ends of the ballast mounting plate in the longitudinal direction, and it is possible to prevent the heat from being accumulated. The lamp can be mounted near the top of the main body of the lamp, the distance between the lamp and the lamp panel can be increased, and the height of the main body of the lamp does not become higher than necessary. Strength of the instrument body for possible to Meide box shape that closes the upper surface is shall be improved.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the above.

FIG. 3 is a perspective view showing the whole of the above.

FIG. 4 is a sectional view of a conventional example.

FIG. 5 is a partially cutaway perspective view of a conventional example.

[Explanation of symbols]

 1 Instrument main body 5 Lamp 6 Ballast 9 Ballast mounting plate

Claims (1)

[Scope of utility model registration request] 1. A lighting fixture in which a plurality of lamps are housed in a box-shaped fixture body having an opening on the lower surface, and ballast storage portions are provided at upper corners on both sides along the lamp axis. Form the upper shoulder part on the slope cut off diagonally, and place the ballast mounting plate with a substantially inverted L-shaped cross section with the ballast mounted inside, on the shoulder parts on both sides of the device body and the ballast mounting plate An embedded luminaire, characterized in that it is attached in contact with the upper and side surfaces of the main body.