JP2627233B2 - Lighting device for fluorescent lamp - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent lamp lighting device for lighting a fluorescent lamp incorporated in a lighting fixture.

[0002]

2. Description of the Related Art As a lighting method of a fluorescent lamp, there are a ballast method using a ballast and an inverter method using an inverter. In the ballast method, a glow lamp is provided in the circuit. Provide a starting capacitor in the circuit.

In a lighting apparatus for lighting a fluorescent lamp in a ballast system, a fluorescent lamp socket for mounting a fluorescent lamp and a glow lamp socket for mounting a glow lamp are provided in a main body thereof. However, in recent years, the main body of such a ballast type lighting fixture has been commonly used as it is as an inverter type lighting fixture body.

In such a case, if the inverter method is adopted, the glow lamp socket is not necessary. However, if the glow lamp socket is left as it is, the glow lamp socket will be left inside. There is a danger that the user will get an electric shock by inserting his fingertips. I have.

[0005]

However, in such means, a cover is required separately from the glow lamp socket, so that the number of parts increases, which is disadvantageous in terms of cost, and an inverter system is employed. In this case, since the cover must be attached to the glow lamp socket, the assembling work is troublesome and the efficiency is reduced.

The present invention has been made in view of such a point, and an object thereof is to prevent electric shock and the like without attaching a cover to a glow lamp socket even when an inverter system is adopted. An object of the present invention is to provide a fluorescent lamp lighting device capable of preventing fear.

[0007]

According to the present invention, there is provided a glow lamp socket for mounting a glow lamp for use in lighting a fluorescent lamp in a ballast system. A convex portion communicating with the inside of the lamp socket is formed on one side of the lamp socket, and is used when the fluorescent lamp is lit by an inverter method in a space extending between the inside of the glow lamp socket and the inside of the convex portion. This is to constitute a capacitor storage portion capable of storing a starting capacitor.

[0008]

When the fluorescent lamp is to be lighted by the ballast method, the glow lamp is inserted and mounted in the glow lamp socket. On the other hand, when the fluorescent lamp is to be lit by the inverter method, a starting capacitor is inserted into a capacitor housing formed by a glow lamp socket and a convex portion. Lights up.

When the starting capacitor is housed in the capacitor housing, a part of the starting capacitor is arranged in the glow lamp socket, so that the conductive portion in the glow lamp socket is covered with the starting capacitor and electric shock or the like occurs. Is prevented.

[0010]

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a socket unit formed of a synthetic resin. The socket unit 1 has a fluorescent lamp socket 3 and a glow lamp socket 4 on a lower surface of a base 2.
Are integrally protruded. A pair of energizing pieces 5 and 6 are incorporated in the fluorescent lamp socket 3, and the connection pins 8 and 9 of the fluorescent lamp 7 mounted in the socket 3 come into contact with the energizing pieces 5 and 6 to electrically It is designed to conduct.

The glow lamp socket 4 is formed in a cylindrical shape, and one of a base 11 of a glow lamp 10 mounted in the glow lamp socket 4 is provided on an inner peripheral portion and an upper ceiling portion of the glow lamp socket 4. A pair of contact pieces 14 and 15 that contact the terminal 12 and the other terminal 13 are provided. A projection 16 communicating with the inside of the glow lamp socket 4 is integrally formed on one side of the glow lamp socket 4, and a space extending between the inside of the projection 16 and the inside of the glow lamp socket 4. The section constitutes a capacitor storage section 18 capable of storing a starting capacitor 17 used when the fluorescent lamp 7 is turned on by the inverter method. Insert holes 21 and 22 into which the connection pins 19 and 20 of the starting capacitor 17 can be inserted are formed in the upper part of the capacitor storage portion 18.

The contact pieces 14 and 15 of the glow lamp socket 4 respectively extend inside the base 2, one contact piece 14 faces the one insertion hole 21 and the other contact piece 15 fits the other insertion hole. They are arranged so as to face the holes 22 respectively.

In such a configuration, when the fluorescent lamp 7 is turned on in the ballast system, as shown in FIG.
The glow lamp 10 is inserted into the glow lamp socket 4 and attached. Thereby, the base 1 of the glow lamp 10
The first terminals 12 and 13 are in contact with the contact pieces 14 and 15 of the glow lamp socket 4 to form a ballast lighting circuit, and the lighting circuit enables the fluorescent lamp 7 to be lit.

On the other hand, when the fluorescent lamp 7 is to be lit by the inverter method, as shown in FIG. 3, a capacitor accommodating portion constituted by a space extending between the glow lamp socket 4 and the convex portion 16 is provided. The starting capacitor 17 is inserted into the connector 18, and the connection pins 19 and 20 of the starting capacitor 17 are inserted into the insertion holes 21 and 22. As a result, the connecting pins 19 and 20 of the starting capacitor 17 come into contact with the contact pieces 14 and 15 to form a lighting circuit of an inverter type, and the lighting circuit enables the fluorescent lamp 7 to be lit.

When the starting capacitor 17 is accommodated in the capacitor accommodating portion 18, a part of the starting capacitor 17 is disposed in the glow lamp socket 4, so that the conductive portion of the glow lamp socket 4, that is, the contact piece. 1
The starting capacitors 4 and 15 are covered with the starting capacitor 17, so that a danger such as electric shock can be prevented without attaching a cover to the glow lamp socket 4 as in the related art.

[0017]

As described above, according to the present invention, it is possible to cover the conductive portion of the glow lamp socket by using the starting capacitor required when the inverter method is employed. There is an advantage that it is unnecessary, the number of parts is reduced, the cost is low, and the assembly is easy.

[Brief description of the drawings]

FIG. 1 is a sectional view of a lighting device for a fluorescent lamp according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state where a glow lamp is mounted on a glow lamp socket of the lighting device.

FIG. 3 is a perspective view of a state in which a starting capacitor is stored in a capacitor storage section of the lighting device.

[Explanation of symbols]

 4 ... Glow lamp socket 7 ... Fluorescent lamp 10 ... Glow lamp 16 ... Convex part 17 ... Starting condenser 18 ... Condenser storage part

Claims (1)

(57) [Claims] A glow lamp socket for mounting a glow lamp used for lighting a fluorescent lamp in a ballast system is provided. A convex portion communicating with the inside of the glow lamp socket is provided on one side of the glow lamp socket. Forming and forming a capacitor storage portion capable of storing a starting capacitor used when the fluorescent lamp is lit by an inverter method in a space extending between the inside of the glow lamp socket and the inside of the projection. Lighting device for fluorescent lamps.