JPH0525135Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a ballast mounting device for a lighting fixture that mounts a ballast whose ballast body is covered with a case to a lighting fixture body.

(Prior Art) As shown in FIGS. 4 and 5, ballasts in conventional lighting equipment generally have a structure in which a ballast main body 1 is covered with a case 2 having openings at both ends. This case 2 holds the ballast body 1 by caulking and joining both side plates 2b raised from both sides of the bottom plate 2a on which the ballast body 1 is placed and a top plate 2c.

The structure for attaching such a ballast to the lighting equipment main body 4 is to provide a tapping hole 3 approximately at the center of both ends of the bottom plate 2a of the case 2, and to provide a thread through the lighting equipment main body 4 corresponding to the tapping hole 3. A hole 5 is provided, through which a mounting screw 6 is screwed into the tapping hole 3 of the bottom plate 2a and fixed by tightening.

(Problems to be solved by the invention) In the double-end open type ballast, as shown in FIG.
When case 2 is caulked to
When the side plates 2b are caulked to the top plate 2c of the case 2, the bottom plate 2a of the case 2 may warp.

In this way, in a ballast with open ends, the bottom plate 2a of the case 2 may warp;
It is not possible to correct warpage with the conventional mounting structure, and both sides of the bottom plate 2a of the case and the lighting fixture body 4
A gap is likely to occur between the two. If a gap is created between the bottom plate 2a of the case 2 and the lighting fixture main body 4 in this way, the bottom plate 2a and the lighting fixture main body 4 will resonate in the gap due to vibrations during operation of the ballast, causing a hum. Moreover, heat dissipation from the case 2 to the lighting fixture body 4 is also reduced.

The present invention was developed in view of the above-mentioned points.In a ballast whose main body is covered with a case that is open at both ends, the warp that occurs in the bottom plate of the case is corrected, and the bottom plate is brought into close contact with the main body of the lighting device. The object of the present invention is to provide a ballast mounting device for a lighting fixture that can be mounted on a lighting fixture, prevent the generation of beats due to resonance, and improve heat dissipation.

[Structure of the idea]

(Means for Solving the Problems) In the present invention, the case covering the ballast body has a bottom plate that is open at both ends, protrudes from the ballast body, and has rising edges on both sides. , in the ballast mounting device for a lighting fixture that is attached to the lighting fixture body via the bottom plate, coupling step portions are provided on both rising edges of both ends of the bottom plate, and the bottom plate is attached to the ballast mounting portion of the lighting fixture body. A caulking piece is cut and raised facing approximately parallel to the outside of both rising edges at the joint step position of both ends of the bottom plate, and each caulking piece is placed on the outside of the rising edge with respect to each joint step of the bottom plate. It is caulked and joined inward.

(Function) In the present invention, by caulking each caulking piece from the outside of the rising edge to the inside of the joining step formed on both rising edges of the bottom plate of the case, the two ends of the bottom plate of the case, that is, the four corners. Press it against the lighting fixture body, correct the warping that occurs on the bottom plate, and attach it to the lighting fixture body in a tight state.

(Embodiment) Hereinafter, the configuration of an embodiment of the present invention will be described with reference to the drawings.

In Figures 1 to 3, 11 is a ballast, and this ballast 11 is an iron core 12 into which a coil is inserted.
The stabilizer body 13 has a ballast main body 13, and a case 14 having open ends covers the top surface, both side surfaces, and the bottom surface of the ballast main body 13.

The case 14 includes an upper case 15 and a lower case 1.
It consists of 6. This upper case 15 includes an upper plate 17 that covers the upper surface of the stabilizer main body 13 and a top plate 17 that covers the upper surface of the stabilizer main body 13.
It integrally has a pair of side plates 18 that cover both sides of the
A plurality of caulking protrusions 19 are provided at the lower end of each side plate 18.
On the other hand, the lower case 16 includes a bottom plate 20 that covers the bottom surface of the stabilizer main body 13, and rising edges 21 are provided on both side edges of the bottom plate 20.
From this rising edge 21 to the iron core 1 of the ballast body 13
A mounting plate 22 on which 2 is placed is provided, and
A protruding edge portion 23 is provided below the outer edge of the mounting plate 22, and furthermore, a joining step portion 24 is provided at both ends of both rising edges 21 to which a caulking piece 34, which will be described later, is caulked. And upper case 1
5 and the lower case 16, and the caulking protrusions 19 of the side plates 18 of the upper case 15 are caulked to the projecting edges 23 of the lower case 16, thereby attaching the case 1 to the outside of the stabilizer body 13.
I am wearing 4.

Further, 31 is a lighting equipment main body, and the ballast mounting portion 32 of this lighting equipment main body 31 is provided with the case 14.
Corresponding to the position of each joining step 24 at both ends of the bottom plate 20, each caulking is made facing approximately parallel to the outside of the rising edge 21 so that the cut-and-raised hole 33 is located on the lower side of the bottom plate 20. The piece 34 is cut and raised, and the case 14 is
Round dowel-shaped positioning protrusions 35 are provided to protrude corresponding to each position of the end portion of the bottom plate 20 .

Next, in order to attach the ballast 11 to the lighting equipment main body 31, first, the ballast 11 is attached to the lighting equipment main body 31.
Place it on the ballast mounting part 32 of No. 1. That is, the bottom plate 20 of the case 14 is inserted between the opposing caulking pieces 34 and fitted between both positioning protrusions 35 to join the bottom plate 20 to the lighting fixture main body 31. In this mounted state of the stabilizer 11, the lateral positioning is performed by each caulking piece 34 and the positioning protrusion 35, and each caulking piece 34 faces each coupling step 24 of the bottom plate 20.

Next, as shown in FIG.
are caulked and joined to each joining step 24 of the bottom plate 20 from the outside of the rising edge 21 to the inside. At this time, each caulking piece 34 is caulked so as to press both rising edges 21 of the bottom plate 20 against the lighting fixture main body 31, so that the tip 34a of each caulking piece 34 comes into contact with the bottom plate 20, and each caulking piece 34 is joined to each coupling step 24.

The ballast 11 that has been attached to the lighting fixture body 31 in this way is pressed onto the lighting fixture body 31 by the caulking pieces 34 at both ends of the bottom plate 20 of the case 14, that is, at the four corners. Even if the bottom plate 20 is warped, the warp is corrected and the bottom plate 20 is attached tightly to the lighting fixture body 31, and vibrations caused by the operation of the ballast 11 do not cause any buzzing. Heat dissipation from the lighting device 20 to the lighting fixture main body 31 is improved.

Note that the bottom plate 20 has a large warpage and each caulking piece 34
Even if they are caulked together, a gap may occur between the side of the bottom plate 20 and the lighting fixture body 31, but since each caulking piece 34 is firmly connected to the bottom plate 20, ballast vibration will not occur. Therefore, the lighting fixture main body 31 does not resonate and generate beats.

Further, since the bottom plate 20 closes the cut-and-raised hole 33 formed by cutting and raising the caulking piece 34, it is possible to prevent insects, dust, etc. from entering the lighting equipment through the cut-and-raised hole 33.

Note that the positioning protrusion 3 of the lighting fixture main body 31
5 may be formed by cutting and raising a projecting piece.

Furthermore, the case 14 of the ballast 11 is not limited to the structure of the above embodiment, but may have a bottom plate and a side plate integrally formed as shown in FIGS. 4 and 5 used in the conventional explanation. There is also a combination of a top plate and a top plate, and in this case as well, a connecting step can be formed and a mounting structure using caulking pieces 34 can be applied.

[Effect of idea]

According to the present invention, in a ballast whose ballast body is covered with a case with openings at both ends, for each joint step formed at both rising edges of the bottom plate of the case, there is a rise from the luminaire main body at the position of each joint step. By caulking and joining each caulking piece cut and raised approximately parallel to the outside of the edge from the outside of the rising edge to the inside, the bottom plate is pressed against the lighting fixture body, and the warp that occurs in the bottom plate is corrected and lighting is achieved. It can be attached closely to the lighting fixture body, preventing the generation of beats due to ballast vibration, and also improving heat dissipation from the case to the lighting fixture body.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the lighting equipment ballast mounting device of the present invention before installation, Fig. 2 is a perspective view of a part of the installation state, Fig. 3 is a side view thereof, and Fig. 4 The figure is a side view of the conventional device, and FIG. 5 is a perspective view. 13... Stabilizer body, 14... Case, 20...
. . . Bottom plate, 21 .

Claims (1)

[Claims for Utility Model Registration] The case covering the ballast body is provided with a bottom plate that is open at both ends and protrudes from the ballast body and has rising edges formed on both sides of the body. In the ballast mounting device for a lighting fixture that is attached to a lighting fixture body, coupling steps are provided at both rising edges of both ends of the bottom plate, and coupling stages are provided at both ends of the bottom plate at the ballast mounting portion of the lighting fixture body. caulking pieces were cut and raised facing substantially parallel to the outside of both rising edges at the position, and each of the caulking pieces was caulked and joined to each joining step of the bottom plate from the outside of the rising edge to the inside. A ballast mounting device for a lighting equipment, characterized in that: