JPS61230202A - Discharge lamp apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a discharge lamp device configured in a small size such as a compact fluorescent lamp. [Prior Art] A compact fluorescent lamp is an example of a device disposed integrally with or adjacent to a lighting device section. and,
This lighting device is lighter and smaller.

In order to improve efficiency during lighting, a device is known as a lighting device that lights a discharge lamp at a high frequency using a localization wave generating means.

FIG. 9 is a longitudinal sectional view of a conventional discharge lamp device disclosed in, for example, Japanese Utility Model Application Publication No. 58-192457.

In the figure, (l) is a discharge lamp part consisting of a discharge lamp (1a) and a transparent or translucent outer cover (1b) that covers it, and (2) is a lighting device part for lighting the discharge lamp (1a). It has switching transistors (2A) and (2B) of a transistor inverter (the circuit will be described later) that generates high frequency.

The discharge lamp section (1) and the lighting device section (2) are arranged close to each other.

(3) is an insulating envelope containing the lighting device part (2);
) is the base.

The conventional discharge lamp device is constructed as described above, and when the power is turned on, the discharge lamp (1a) is lit by the high frequency voltage generated by the inverter of the second lighting device section (2), as will be described later.

There are some components of the lighting device section (2) that generate heat, such as the switching transistors (2A) and (2B), and it is desirable to release this heat to the outside.

[Problem that the invention seeks to solve]

In the conventional discharge lamp device as described above, since the envelope (3) is formed of an insulating material, the envelope (3) of the 2 lighting device section (2)
During 3), the heat conduction is poor and the heat generated by the lighting device section 1 (210) cannot be sufficiently conducted to the outside, and the temperature of the lighting device section (21) is high, and the temperature of certain parts (heat-generating parts) increases particularly markedly. In addition, a metal material is used for the envelope (2).

If good heat conduction with the lighting device part (2) is maintained, when a person comes into contact with this envelope (2), the sensible temperature is 1° high, giving a feeling of discomfort. Especially when the discharge lamp (1a) has a large output, there are various problems such as being too hot to touch when replacing the lamp.

This invention was made in order to solve the above-mentioned problems. 1. Heat conduction between the lighting device part and the envelope is increased.

Another object of the present invention is to provide a discharge lamp device which is highly safe and poses no danger even if a person comes into contact with the envelope. Another object of the present invention is to provide a discharge lamp device in which, in addition to the above object, the conduction of heat generated in the lighting device section can be further improved.

[Means for solving problems]

The discharge lamp device according to the present invention includes an envelope of the 9 lighting device section,
It is composed of a first envelope made of an insulating material constituting the outside thereof, and a second envelope made of a metal material that is in close contact with the inner periphery of the first envelope and surrounding the lighting device section 9.

Another invention of the present invention is the above-mentioned one, in which a filler is inserted between the second envelope and the lighting device section or between the second envelope and the first envelope. It is.

[Effect]

In this invention, the heat generated by one lighting device section is conducted to the second envelope, and is radiated through the first envelope that is in close contact with the second envelope. Further, it is insulated from the outside by the first envelope.

Further, in another aspect of the present invention, the heat generated in the lighting device section is transferred to the second envelope via the filling material.

Heat from the second envelope is conducted to the first envelope.

〔Example〕

Figures 1 to 4 are diagrams showing one embodiment of the present invention.
The figure is a perspective view, Figure 2 is an exploded perspective view, Figure 3 is a longitudinal sectional view of the second envelope (3B), Figure 4 is an electric circuit diagram of the lighting device section (2) (h#), (t), (1a), (1b)
.

+21. (2A), (2B), and (4) are similar to the conventional device described above.

In Figures 1 to 3, (1) is an end plate fixed to the open end of the envelope (1b), (3A) is a cylinder formed of an insulator and forming the outside of the envelope (3). a first envelope of (
3B) is a cylindrical second envelope made of metal, which constitutes the inside of the envelope (3), and has a partition plate (+Ba) near the lower end; The lighting device part (2) is held in close contact with the periphery, and is placed in the space above the partition plate (3Ba).
All or part of the component parts are stored. Also.

The end plate (1C) portion is inserted and fixed in the space below the partition plate (3Ba), and the second envelope (3B) and the discharge lamp section (1) are coupled.

In Figure 4, (20) is an AC power supply, (2D) is a single-phase full-wave rectifier, (2IC) is a capacitor, and (2F) is a choke coil.

(2G) and (2H) are resistors, and (2H) are resonance capacitors.

(2J) is the output transformer, (2K) is the output transformer (2J)
With the pace feedback winding installed in the switching transistor (2A), (2B) I resistance (2G), (2H)
, Resonance capacitor (2 pieces) # Output transformer (2J),
Pace feedback winding (2K), and choke coil (2F
) consists of an inverter.

In the discharge lamp device configured as described above.

Pace return volume &! (2K) causes the switching transistors (2A) and (2B) to alternately conduct, and a high frequency voltage is generated from the output transformer (2J). This high frequency voltage is applied to the discharge lamp (1a) and the discharge lamp (1a)
lights up.

Even if the components of the lighting device section (2) generate heat, the second envelope (3B) is made of metal and is a good conductor of nine heat.
The temperature difference depending on the location of the first envelope (3B) is reduced, and heat is radiated through the first envelope (3A) which is in close contact with the first envelope (3A). Moreover, if ventilation holes are provided in this, heat dissipation will be even better. Furthermore.

Since the second envelope (3B) is made of a metal material, it has increased strength compared to the first envelope (3A) made of an insulating material.

FIG. 5 is a diagram showing another embodiment of the present invention.9 For example, when using an inverter as shown in FIG. As shown in (2A) and (2B) (not shown), 4CR thick parts, especially those that generate heat, are used to improve heat conduction.
A filling material (6) is inserted between 3B).

FIG. 6 is also a diagram showing another embodiment of the present invention, in which a discharge lamp (1
Connect the end plate (1) to the lead wire outlet of the electrode (1d) in a).
A protrusion (1e) is provided on the upper surface of C). This protrusion (1e) can prevent the filling material (6) from flowing out until it solidifies.

10 and 8 are also diagrams showing other embodiments of the present invention,
Switching transistors (two transistors) serving as charging parts are directly attached to the second envelope (3B) to ensure good heat conduction. The second envelope (3B) is safe because it is insulated from the outside by the first envelope (3A). In this embodiment, the high frequency generating means is 9, for example, 8th.
A one-transistor type as shown in the figure is particularly advantageous.

In Figure 8, (2L) is a DC power source obtained by rectifying an AC power source (2C) as shown in Figure 4, and (2M) (
2N) is a resistor, (2F) to (2R) are capacitors,
Due to the action of the feedback winding (2x) provided on the output transformer (2J), this inverter performs self-oscillation, generates a high frequency voltage, and lights the discharge lamp (1a).

However, other parts with live parts are placed in the second envelope (3B
), and can be applied to devices other than the device shown in FIG.

Further, a thin insulating film may be provided inside the second envelope (3B).

Note that the discharge lamp section (1) can be applied to structures other than those in the embodiment, and can also be applied to structures in which only this part is replaceable.

Furthermore, at least a portion of the inner or outer surface of the second envelope (3B) may be painted as necessary.

A filler such as a low-viscosity silicone compound or adhesive may be inserted between the first and second envelopes (5A) and (3B) to increase thermal conductivity.

〔Effect of the invention〕

As described above, in the present invention, the envelope of the lighting device section of a discharge lamp device is made of a first envelope made of an insulating material constituting the outside thereof, and the first envelope is in close contact with the inner periphery of the first envelope and surrounds the lighting device section. Since it is constructed with a second envelope made of a metal material, heat conduction between the first lighting device part and the envelope is enhanced, and there is no danger even if a person touches the first envelope.

Furthermore, there are effects such as being able to increase the strength of the first envelope made of an outer insulating material.

Further, in another aspect of the present invention, a filler is inserted between the second envelope and the lighting device part or between the second envelope and the first envelope, so that one lighting device part This has the effect of further improving heat conduction.

[Brief explanation of drawings]

1 to 4 are views showing one embodiment of a discharge lamp device according to the present invention, in which FIG. 1 is a perspective view, FIG. 2 is an exploded perspective view of FIG. 1, and FIG. 3 is a second external view. FIG. 4 is a longitudinal sectional view of the enclosure, FIG. 4 is an electric circuit diagram of the lighting device section, and FIGS. 5 to 8 are diagrams showing other embodiments of the present invention. W, Figure 5 is a plan view of the second envelope part, Figure 6 is a longitudinal sectional view of the second envelope part, Figure 7 is a perspective view of the second envelope part, and Figure 8. FIG. 1 is an electric circuit diagram of the lighting device used, and FIG. 8 is a longitudinal sectional view showing a conventional discharge lamp device. In the figure, (1) is the discharge lamp part, (la) is the discharge lamp, and (2) is the discharge lamp part.
) is the lighting device part, (3) is the envelope w (3A) is the first
envelope. (3B) is the second envelope, and (6) is the filling. Note that the same symbols in the table indicate the same or equivalent parts.

Claims (3)

[Claims] (1) In a device in which a discharge lamp section and a lighting device section housed in an envelope and lighting the discharge lamp are arranged in close proximity, the envelope is connected to a A discharge lamp device comprising: an envelope; and a second envelope made of a metal material that is in close contact with the inner periphery of the first envelope and surrounds the lighting device section. (2) The discharge lamp device according to claim 1, wherein one lighting device portion with an exposed internal charging portion is attached to the second envelope. (3) In a device in which a discharge lamp section and a lighting device section housed in an envelope and lighting the discharge lamp are arranged in close proximity to each other, the envelope is connected to a first tube made of an insulating material that constitutes the exterior of the discharge lamp section. and a second envelope made of a metal material that is in close contact with the inner periphery of the first envelope and surrounds the lighting device section, the second envelope and A discharge lamp device characterized in that a filler is inserted between the components of the lighting device section or between the second envelope and the first envelope.