JP2003141901A - Discharge lamp lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To curtail a kind of repair parts at breakage of a discharge lamp bulb incorporating a circuit and to enable repair with other members diverted for want of applicable repair parts. SOLUTION: A conversion adapter 3 is mounted on a discharge tube 1 not equipped with a base for insertion-coupling with an insertion-coupling part 25 with a bulb base of a socket 2a with a built-in circuit, for use as a substitute for a discharge lamp bulb with a base 35. The conversion adapter 3 is not only provided with a base 35 for insertion-coupling with an insertion-coupling part 25 of the circuit-built-in socket 2a but also bulb electrode insertion-coupling openings 31, 32 to insert bulb electrodes 11, 12 of the discharge lamp into, each bulb electrode electrically connected to an adapter electrode. Further, a discharge lamp having a base for insertion-coupling with the circuit-built-in socket 2a may be used, with a conversion adapter mounted, as a substitute part for the discharge tube 1 without a base.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge lamp lighting device, and is used as, for example, a lighting fixture, a vehicle headlamp or an auxiliary lamp.

[0002]

2. Description of the Related Art Conventionally, a discharge lamp bulb with a built-in circuit has been used which is formed by integrating a circuit block and a discharge tube. In the conventional discharge lamp with a built-in circuit, the circuit block and the discharge tube are joined by welding, so when the circuit block or the discharge tube is damaged, even if either one is still usable,
The entire discharge lamp with built-in circuit must be replaced.
On the other hand, when only one of the circuit block and the discharge tube is damaged, it is considered that valuable resources can be effectively used if only the damaged side can be replaced.

In view of this, Japanese Patent Laid-Open No. 2000-322910 proposes a discharge lamp bulb with a built-in circuit in which circuit blocks can be separated. This publication discloses a structure of a discharge lamp bulb with a built-in circuit that can separate a circuit block and a discharge tube as a vehicle discharge lamp lighting unit. In this conventional example, the replaceability when the circuit block and the discharge tube are damaged on one side can be improved, and when either one is damaged, only the damaged side needs to be replaced. Even if it is relatively easy to replace it and you can work in stores (light fixtures mass stores, construction stores, car dealers, etc.), stores that handle repair parts for lighting fixtures that use discharge lamps with built-in circuits The discharge lamp bulb with a built-in circuit and the circuit block and the discharge tube must be held in order to support the replacement of either one, and the number of repair parts increases.

[0004]

In the prior art, a store dealing with repair parts for lighting equipment using a discharge lamp bulb with a built-in circuit replaces only the discharge lamp bulb with a built-in circuit and either the circuit block or the discharge tube. In order to cope with the above, it is necessary to have a circuit block and a discharge tube, and there is a problem that the number of types of repair parts increases. Further, when one of the discharge lamp bulb and the socket with a built-in circuit is damaged, the repair cannot be performed unless the corresponding repair parts are in stock. If there is an adapter for converting the discharge lamp bulb with a built-in circuit and the discharge lamp bulb, it is considered that the number of repair parts owned by the store can be reduced.

The present invention has been made in view of the above points, reduces the types of repair parts when a discharge lamp bulb with a built-in circuit is damaged, and diverts other members when there is no corresponding repair part. The challenge is to make it repairable.

[0006]

In order to solve the above-mentioned problems, in a discharge lamp lighting device according to a first aspect of the present invention, as shown in FIG. 4, a base provided with electrodes 13 and 14 for electric input. The parts 15 are mechanically joined in a non-separable state, and the electrodes 11, 12 are connected to the electrodes 13, 1 of the base part 15.
4 has a discharge lamp bulb 1a electrically connected in an inseparable state, and an electrical input section using a connector 22 and an electric wire, and at least a part of a circuit for generating a high-voltage pulse at the time of starting is provided in a housing. Power is supplied to the socket 2a with a built-in circuit, which has electrodes that can be fitted into the base 15 and can be electrically connected to the electrodes 13 and 14 of the base 15, and the electrical input part using the connector 22 and electric wires. In a discharge lamp lighting device including a lighting device for supplying electric power, a connector 22 and an electric input part using an electric wire are provided as shown in FIG. A circuit block 2 built into the circuit block, and a discharge tube 1 which is mechanically joined to the circuit block 2 in a detachable manner and electrically connects the electrodes 11 and 12 to the circuit in a detachable manner. Circuit And the discharge tube 1 in the storehouse discharge lamp bulb, as shown in FIG. 1, are mechanically joined by removable state the discharge tube 1, the discharge tube 1 of the electrodes 11 and 12
A conversion adapter 3 having an electrode that can be electrically connected to and having a cap portion 35 that can be fitted into the circuit built-in socket 2a.
Is used as a substitute part for the discharge lamp bulb 1a.

In order to solve the same problem, in the discharge lamp lighting device according to the second aspect of the present invention, as shown in FIG. 3, the discharge lamp lighting device has an electric input section using a connector 22 and an electric wire, and a high voltage pulse is generated at least at the time of starting. And a circuit block 2 in which a part of the circuit for generating the electric field is built in the housing, and the electrodes 11 and 12 are mechanically joined to the circuit block 2 in a detachable manner and the electrodes 11 and 12 are electrically connected to the circuit in a detachable manner. FIG. 5 shows a discharge lamp lighting device including a discharge lamp bulb with a built-in circuit including a discharge tube 1 that is electrically connected, and a lighting device that supplies electric power to an electric input portion using the connector 22 and an electric wire, as shown in FIG. The base portion 15 provided with the electrodes 13 and 14 for electric input is mechanically joined to each other in a non-separable state.
A discharge lamp bulb 1a in which 1 and 12 are electrically connected to the electrodes 13 and 14 of the base portion 15 in an inseparable manner, and a base portion 15 of the discharge lamp bulb 1a can be fitted and the base portion 15 can be fitted. Of the adapter electrodes 43 and 44 that can be electrically connected to the electrodes 13 and 14 of FIG.
3, 44 (41, 42) is combined with a conversion adapter 4 which is electrically connected to the circuit in a detachable manner, and is used as a substitute part of the discharge tube 1.

Thus, when there is no corresponding repair part, other members can be diverted and repaired. For example, in a discharge lamp bulb with a built-in circuit, if the circuit block is damaged, the discharge tube is used as it is and the socket with a built-in circuit is diverted. Also, if the discharge tube is damaged in the discharge lamp bulb with built-in circuit,
The discharge lamp bulb is diverted using the circuit block as it is. When the discharge lamp bulb is damaged, if the socket with a built-in circuit is usable, the socket with a built-in circuit is used as it is and the discharge tube of the discharge lamp bulb with a built-in circuit is diverted. In addition, if the socket with a built-in circuit is damaged and the discharge lamp bulb can be used, the discharge lamp bulb may be used as it is and the circuit block of the discharge lamp bulb with a built-in circuit may be diverted.

[0009]

(Embodiment 1) FIG. 1 is an exploded perspective view of Embodiment 1 of the present invention. In this embodiment,
This is an example in which the conversion adapter 3 is attached to the discharge tube 1 that does not have the cap portion 35 that fits in the socket 2a with a built-in circuit, and is used as a substitute part of the discharge lamp bulb having the cap portion 35 (see 1a in FIG. 4). It corresponds to items 1, 3, and 4.

FIG. 2 shows the structure of a discharge lamp bulb with a built-in circuit. The circuit block 2 includes a circuit including at least a part of the starting circuit as a housing (case body 20, case cover 21).
It has an input connector 22 that is housed inside and that connects an electrical input to the circuit. In the example shown, 3
It uses a terminal connector and consists of a pair of power supply terminals for lighting and a terminal for charging the high-voltage generating capacitor of the starting circuit. Power is supplied from a lighting device (ballast) not shown. Supplied. The input connector 22 may be replaced with an electric wire. Further, the portions of the discharge tube 1 where the bulb electrodes 11 and 12 are electrically connected to the circuit are generally connected by welding and cannot be freely separated. The discharge tube 1 includes a light emitting discharge part 10 in which a discharge gas is sealed with glass, a glass tube 17 for leading out the bulb electrode 11 and the bulb electrode 12 from the light emitting discharge part 10, and in the case of a single base structure, the bulb electrode 12 at one end is bulb-filled. An electrode protection tube 18 for mechanically protecting the portion bent to the electrode 11 side,
And a valve base 16 that holds each component.

In the discharge lamp bulb with a built-in circuit shown in FIG. 2, one in which the discharge tube 1 and the circuit block 2 can be separated is shown in FIG.
Shown in. A bulb electrode 11 and a bulb electrode 12 are provided on the discharge tube 1 so as to penetrate the bulb base 16 and project therefrom. Further, the circuit block 2 is provided with a discharge tube insertion opening 23 for inserting the discharge tube 1. Circuit block 2
Is provided with a pair of circuit electrodes (not shown in FIG. 3) for electrically connecting to the valve electrode 11 and the valve electrode 12. In the configuration of FIG. 3, the discharge tube 1 and the circuit block 2 can be mechanically connected and can be freely attached and detached.

Next, FIG. 4 shows a combination of the discharge lamp bulb 1a and the socket 2a with a built-in circuit. In contrast to the discharge lamp bulb with a built-in circuit of FIG. 2, the discharge lamp bulb 1a of FIG. 4 has a valve base 16 integrally formed with a valve base portion 15, and the valve base portion 15 is provided with valve electrodes 13 and 14. is doing. The valve electrodes 13 and 14 are electrically connected to the valve electrodes 11 and 12, respectively, and since the connections are generally made by welding, they cannot be freely removed.
The circuit built-in socket 2a shown in FIG. 4 has a housing (case body 20 and case cover 21) in which a circuit is built, and an input connector 22. The input connector 22 may be an electric wire.

In this embodiment, there is no stock of repair parts for the discharge lamp bulb 1a having the base portion 15 as shown in FIG. 4, and instead, the discharge tube without the base portion 15 as shown in FIG. 1 is an example in which a conversion adapter 3 as shown in FIG. 1 is mounted when 1 is at hand, and is used as a substitute part of the discharge lamp bulb 1 a having the base portion 15.

On one surface of the conversion adapter 3 shown in FIG. 1, valve electrode fitting openings 31 and 32 for fitting and electrically connecting with the valve electrodes 11 and 12 of the discharge tube 1 are provided. The adapter base 30 can be mechanically connected to and fixed to the valve base 16 of the discharge tube 1. Each opening 31 and 32 has an adapter electrode electrically connected to the valve electrodes 11 and 12, respectively. Further, a cap portion 35 having the same shape as the bulb cap portion 15 of the discharge lamp bulb 1a is formed on the other surface of the conversion adapter 3 so as to be fittable with the circuit built-in socket 2a. An adapter electrode (not shown) electrically connected to the valve electrode 11 and an adapter electrode 34 electrically connected to the valve electrode 12 are arranged in the base portion 35. By using this conversion adapter 3, the discharge tube 1 of the discharge lamp bulb with a built-in circuit (FIG. 3) and the socket 2a with a built-in circuit can be fitted.

If the input connector 22 of the discharge lamp with a built-in circuit and the input connector 22 of the socket 2a with a built-in circuit have the same specifications, the compatibility of the present invention can be maximized. Moreover, if a quick-connect terminal is used for the detachable electrode, a simple and quick connection is possible.

(Second Embodiment) FIG. 5 is an exploded perspective view of a second embodiment of the present invention. In this embodiment, the base 1
5 is an example in which the conversion adapter 4 is attached to the discharge lamp bulb 1a having 5 and is used as a substitute part of the discharge tube 1 having no base portion 15, and corresponds to claims 2, 3, and 4.

On one surface of the conversion adapter 4, an adapter electrode 43 electrically connected to the bulb electrode 13 of the discharge lamp bulb 1a and an adapter electrode 44 electrically connected to the bulb electrode 14 are attached to the adapter body 40. It is arranged. The adapter body 40 can be mechanically fitted to the valve mouthpiece portion 15 in the same manner as the valve mouthpiece fitting portion 25 of the circuit built-in socket 2a.

On the other surface of the conversion adapter 4, the bulb electrode of the discharge tube 1 of the discharge lamp bulb with a built-in circuit is formed so that it can be mechanically and electrically connected to the circuit block 2 of the discharge lamp bulb with a built-in circuit. It has adapter electrodes 41 and 42 of the same shape as 11 and 12. The adapter electrode 41 is the discharge tube 1
Connected to the first circuit electrode of the circuit block 2, and the adapter electrode 42 corresponds to the valve electrode 12 of the discharge tube 1 and connected to the second circuit electrode of the circuit block 2. The adapter body 40 can be mechanically fixed to the circuit block 2.

Inside the adapter body 40, the adapter electrode 41 and the adapter electrode 43 are electrically connected, and similarly, the adapter electrode 42 and the adapter electrode 44 are electrically connected. As a result, the discharge lamp bulb 1a having the base portion 15 can be connected to the circuit block 2 of the circuit-embedded discharge lamp bulb via the conversion adapter 4.

If the input connector 22 of the discharge lamp with a built-in circuit and the input connector 22 of the socket 2a with a built-in circuit have the same specifications, the compatibility of the present invention can be maximized. Moreover, if a quick-connect terminal is used for the detachable electrode, a simple and quick connection is possible.

[0021]

According to the first aspect of the present invention, the conversion adapter is attached to the discharge tube which does not have the base part to be fitted into the circuit built-in socket and is used as a substitute part of the discharge lamp bulb having the base part. It is possible to connect the discharge tube of a discharge lamp bulb with a built-in circuit, which is not originally connectable, to a socket with a built-in circuit.

According to the second aspect of the present invention, the conversion adapter is attached to the discharge lamp bulb having the base portion that fits into the circuit built-in socket, and is used as a substitute for a discharge tube having no base portion. It becomes possible to connect the circuit unit of the discharge lamp bulb with a built-in circuit, which cannot be originally connected, to the discharge lamp bulb.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a configuration of a first embodiment of the present invention.

FIG. 2 is a perspective view of a conventional discharge lamp bulb with a built-in circuit.

FIG. 3 is an exploded perspective view of a conventional discharge lamp bulb with a built-in circuit in which circuit blocks can be separated.

FIG. 4 is an exploded perspective view of a conventional discharge lamp bulb and a socket with a built-in circuit.

FIG. 5 is an exploded perspective view showing the configuration of the second embodiment of the present invention.

[Explanation of symbols]

1 discharge tube 2a Circuit built-in socket 3 conversion adapter

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) // F21W 101: 10 F21M 1/00 N F21Y 101: 00 (72) Inventor Kenichi Takamatsu Kadoma City, Osaka 1048 Kadoma Matsushita Electric Works, Ltd. (72) Inventor Masatoshi Ueno 1048 Kadoma, Kadoma-shi, Osaka Prefecture F-term in Matsushita Electric Works Co., Ltd. (reference) 3K042 AA08 AA11 AC06 CA03

Claims (4)

[Claims] 1. A base part provided with electrodes for electric input is mechanically joined in a non-separable state, and each electrode is electrically connected to the electrode of the base part in a non-separable state. A discharge lamp bulb and an electric input section using a connector and an electric wire, and at least a part of a circuit that generates a high-voltage pulse at the time of starting is built in the housing, and the fitting section can be fitted with the fitting section. In a discharge lamp lighting device comprising a socket with a built-in circuit having an electrode electrically connectable to an electrode and a lighting device for supplying electric power to an electric input part using the connector or the electric wire, an electric input using the connector or the electric wire And a circuit block in which at least a part of a circuit that generates a high-voltage pulse at the time of starting is built in a housing, and mechanically joined to the circuit block in a detachable manner and each electrode is attached to or detached from the circuit. Possible state And a discharge tube in a discharge lamp bulb with a built-in circuit, which is electrically connected to the discharge tube and is electrically connected to the electrode of the discharge tube by being mechanically joined to the discharge tube in a detachable manner. A discharge lamp lighting device, characterized in that the discharge lamp lighting device is provided with an electrode capable of being combined with a conversion adapter having a base part that can be fitted into the circuit built-in socket, and is used as a substitute part of the discharge lamp bulb. 2. A circuit block having an electric input section using a connector and an electric wire, at least a part of a circuit for generating a high-voltage pulse at the time of starting is built in a casing, and a machine in a detachable state in the circuit block. Supply a power to a circuit built-in discharge lamp bulb comprising a discharge tube electrically connected to each other in a detachable manner and electrically connected to the circuit, and an electric input section using the connector or electric wire. In a discharge lamp lighting device including a lighting device, a base portion provided with electrodes for electric input is mechanically joined in a non-separable state, and each electrode is inseparable from the electrode of the base portion. A discharge lamp bulb that is electrically connected with, and an adapter electrode that can be fitted to the base portion of the discharge lamp bulb and that is electrically connectable to the electrode of the base portion, and is detachable from the circuit block. Mechanical A discharge lamp lighting device, characterized in that it is combined with a conversion adapter that is joined to the above and each adapter electrode is electrically connected to the circuit in a detachably attachable manner to form a substitute part for the discharge tube. 3. The discharge lamp lighting device according to claim 1, wherein a quick-connect terminal is used as an electrode electrically connected in a detachable state. 4. The discharge lamp lighting device according to claim 1, wherein connectors having the same shape are used for an electric input portion of the circuit built-in discharge lamp bulb and an electric input portion of the circuit built-in socket.