JPH0438411Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a multi-light lighting fixture such as a chandelier.

[Conventional technology]

A conventional example is shown in FIG. 5 and FIG. 6. That is, in this multi-light lighting fixture, a plurality of single-cap fluorescent lamps 50 to 53 are lit by a high-frequency lighting device 54 for multiple lamps at once, and the single-cap fluorescent lamps 50 to 53 are arranged around the high-frequency lighting device 54. A lead wire 57 of a fixed lamp socket 56 is connected to the output terminal 55 of the high frequency lighting device 54, and the lamp socket 56 is connected to the single-cap fluorescent lamps 50-53. Reference numeral 58 is a device main body, 59 is a reflector, and 60 is a lamp support spring.

[Problem to be solved by the invention] However, this multi-lamp lighting fixture has a plurality of single-cap fluorescent lamps 50 to 53, but only one high-frequency lighting device 54, and therefore only one lamp socket 56 through which high-frequency current flows. The lead wire 57 became longer, and there was a risk that the lead wire 57 would serve as an antenna and increase radiated noise.

Therefore, an object of this invention is to provide a multi-lamp lighting fixture that can reduce radiation noise.

[Means to solve the problem]

The multi-lamp lighting device of this invention includes a main body, and a plurality of power supply side terminals arranged in a ring shape on the main body of the device, each on the side of the radiation center in the radiation direction with the center of the ring as the center of radiation. a plurality of single-lamp high-frequency lighting devices each having an output terminal on a side opposite to the radiation center; and a single-cap fluorescent lamp disposed on the output terminal side of each of these high-frequency lighting devices. It is equipped with a lamp socket into which a base is attached.

[Effect]

According to the configuration of this invention, since a lamp socket for attaching a lamp base of a single-cap fluorescent lamp is provided to the output terminal of each high-frequency lighting device, the lead wire connected to the lamp socket can be shortened to the shortest distance. Therefore, radiation noise can be reduced. Furthermore, since the power supply side terminal is oriented toward the center in the radiation direction, the input line can be shortened to the shortest distance, thereby reducing the load and the induction from the lead wire to the input line, and reducing terminal noise. Furthermore, since there is no need to worry about input lines and lead lines crossing each other, noise and malfunctions can be suppressed.

〔Example〕

A first embodiment of this invention will be described based on FIGS. 1 and 2. That is, this multi-lamp lighting fixture includes a fixture main body 1, a plurality of single-lamp high-frequency lighting devices 2-5, and single-cap fluorescent lamps 6-9.

The appliance main body 1 has an inverted rectangular dish shape, and a reflecting plate 12 having a larger shape than the appliance main body 1 is provided on its surface, and a lamp support spring 13 and a lamp socket 14 are attached to the reflecting plate 12. The lamp support spring 13 and the lamp socket 14 are arranged in a radial direction with the center M of the appliance body 1 as the radial center, with the lamp socket 14 facing toward the center M.

A plurality of high-frequency lighting devices 2 to 5 are arranged in a ring shape in the appliance main body 1, each having a power supply side terminal 10 on the side of the radiation center in a radial direction with the center of the ring as the radiation center. It has an output side terminal 11 on the opposite side. In the embodiment, the center of the ring coincides with the center M of the instrument body 1. Further, the high frequency lighting devices 2 to 5 are of an inverter type, and are attached to the appliance main body 1 and covered with a reflecting plate 12. Since the specific circuits of the high-frequency lighting devices 2 to 5 are well known, their explanation will be omitted. Further, the output terminal 11 is arranged close to the lamp socket 14.

The single-cap fluorescent lamps 6 to 9 are equipped with high frequency lighting devices 2 to 5.
A lamp base 17 is attached to a lamp socket 14 which is arranged in the appliance main body 1 and is close to the output terminal 11 corresponding to each of the lamps. This single cap fluorescent lamp 6~
9 is an example of a round fluorescent lamp.

According to this embodiment, each high frequency lighting device 2 to 5
Since the lamp socket 14 for attaching the lamp base 17 of the single-cap fluorescent lamps 6 to 9 is disposed on the output side terminal 11 of the lamp, the lead wire (not shown) connected to the lamp socket 14 can be shortened to the shortest distance. Therefore, radiation noise can be reduced.
In addition, since the power supply side terminal 10 is oriented toward the center in the radiation direction, the input line connected to the power supply line can be shortened to the shortest distance, thereby reducing the load and the induction from the lead wire to the input line, and reducing terminal noise. . Furthermore, since there is no need to worry about input lines and lead lines crossing each other, noise and malfunctions can be suppressed.

A second embodiment of this invention is shown in FIGS. 3 and 4. That is, in this multi-lamp lighting fixture, the fixture main body 1 is round, and the lamp socket 14 to which the lamp caps 17 of the single-cap fluorescent lamps 6 to 9 are connected is arranged just outside the output terminal 11 to support the lamp. The spring 13 is arranged on the center M side of the instrument body 1, so that the instrument body 1 can be made smaller. Further, a substantially conical reflecting plate 18 is formed protruding from the center of each of the round fluorescent lamps 6 to 9. The rest is the same as the first embodiment.

[Effect of idea]

According to the multi-lamp lighting device of this invention, the output terminal of each high-frequency lighting device is provided with a lamp socket for attaching the lamp base of a single-cap fluorescent lamp, so that the lead wire connected to the lamp socket can be shortened to the shortest distance. Therefore, radiation noise can be reduced. Furthermore, since the power supply side terminal is oriented toward the center in the radiation direction, the input line can be shortened to the shortest distance, thereby reducing the load and the induction from the lead wire to the input line, and reducing terminal noise. Furthermore, since there is no need to worry about the input line and the lead wire crossing each other, noise and malfunctions can be suppressed.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the first embodiment of this invention seen from below, Fig. 2 is a schematic sectional view thereof, and Fig. 3 is a second embodiment of the invention.
4 is a schematic sectional view thereof, FIG. 5 is a plan view of the conventional example as seen from below, and FIG. 6 is a side view thereof. 1... appliance body, 2-5... high frequency lighting device,
6 to 9...Single base fluorescent lamp, 10...Power side terminal,
11...Output side terminal, 14...Lamp socket,
17...Lamp cap.

Claims (1)

[Scope of utility model registration request] a device main body; and a plurality of power supply side terminals arranged in a ring shape on the device main body, each having a power supply side terminal on the side of the radiation center in a radial direction with the center of the ring shape as the radiation center, and each on the side opposite to the radiation center. A multiple lamp socket comprising a plurality of single-lamp high-frequency lighting devices each having an output side terminal, and a lamp socket disposed on the output side terminal side of each of these high-frequency lighting devices to attach a lamp base of a single-base fluorescent lamp. Lighting equipment for lights.