JPH0411288Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to lighting equipment.

[Background technology]

FIG. 1 shows a conventional example, which is a lighting fixture designed to shield radio noise generated from lighting devices and the like. A light-transmitting panel 2 is provided to cover the open lower surface of a device main body 1 whose bottom surface is open, and a wire mesh 3 grounded is placed on the upper surface of the light-transmitting panel 2. However, in this case, in order to improve the shielding effect, the mesh must be made smaller, which lowers the light transmittance and deteriorates the efficiency of the device.

In addition, there is a device in which a transparent conductive film is printed on the transparent panel 2 instead of the wire mesh 3, but the structure for establishing electrical continuity between the transparent conductive film and the main body of the device becomes complicated, and the electrical continuity becomes uncertain. It was something to do.

(Purpose) The present invention was developed in view of the above points, and uses a transparent conductive film to ensure continuity with a simple structure.
The purpose of the present invention is to provide lighting equipment that shields radio noise.

(Embodiment) FIGS. 2 and 3 show an embodiment of the present invention, which is a lighting fixture that shields radio noise generated from a lighting device and the like. The appliance main body 1 has a box shape with only the bottom side open, and a lighting device (not shown) and a lamp 4 are housed inside, and the open bottom side is covered with a light-transmitting panel 2. The transparent panel 2 is placed within a frame 5, and the frame 5 is attached to the instrument main body 1 in close contact with the elastic force of the hook spring 6. The light-transmitting panel 2 is formed by printing or spraying a transparent conductive film 8 in a mesh pattern on the inner surface of a substrate 7 made of transparent or opalescent glass, acrylic, or the like. In addition, the dimensions of the mesh, the transparent conductive film 8
The width may be set as necessary, and the transparent conductive film 8 may be formed on the entire inner surface of the substrate 7. The transparent conductive film 8 can be mainly composed of tin oxide or indium oxide.

A contact spring 9 made of a conductive spring material is attached to a suitable position near the lower end of the inner surface of the instrument body 1 in a state where it is electrically connected to the instrument body 1. Therefore, when the frame 5 is attached to the instrument body 1 with the hook spring 6,
The contact spring 9 is in pressure contact with the inner surface of the transparent panel 2, and connects the transparent conductive film 8 and the device body 1 to connect the ground wire 10.
is grounded. Further, as shown in FIG. 4, the contact spring 9 has its tip bent into a substantially doglegged shape, so that when the light-transmitting panel 2 is attached to the instrument body 1, the positioning of the light-transmitting panel 2 can be performed at the same time. .

(Effects) The present invention is constructed as described above, and by simply placing the transparent panel 2 on the frame 5 and attaching it to the device body 1 with the hook springs 6, the contact spring 9 is pressed against the transparent conductive film 8 and conduction is established. It has a simple configuration, and the conduction between the transparent conductive film 8 and the device main body 1 is the contact conduction between the contact spring 9 and the transparent conductive film 8, so that the conduction can be reliably established and radio noise can be reliably shielded. did it.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional side view showing a conventional example, Figs. 2 and 3 show an embodiment of the present invention, Fig. 2 is a cross-sectional side view, Fig. 3 is a perspective view of a translucent panel, and Fig. 4. FIG. 2 is a side view of main parts of another embodiment of the present invention. 1... Appliance body, 2... Translucent panel, 5...
Frame, 7...Substrate, 8...Transparent conductive film, 9...Contact spring.

Claims (1)

[Scope of utility model registration request] The apparatus includes a main body, a frame attached to the main body with a hooking spring, and a transparent panel having a transparent conductive film formed on the inner surface, and the transparent panel is placed on the frame to open the main body for light irradiation. In a lighting fixture whose lower surface is covered, a contact spring is attached to the fixture body facing the transparent conductive film of the translucent panel, and the contact spring is pressed against the transparent conductive film while the frame is attached to the fixture body with a hook spring. A lighting device characterized in that a transparent conductive film and a device main body are electrically connected through a contact spring.