JPH10241450A - Discharge lamp ballast - Google Patents

Abstract

PROBLEM TO BE SOLVED: To standardize discharge lamp ballasts containing a luminaire in which a starter is unnecessary by containing a starter necessary in lighting in a case of a discharge lamp ballast, and forming a starter circuit in which a switching element is formed on the same substrate. SOLUTION: A pair of coil terminals 6a is fixed to one end in the upper long direction of a bobbin 1 of a coil 2, and a pair of starter terminals 6b to which a lead wire 38 of a starter 34 is connected is fixed to the other end. The circuit of the starter 34 is a time constant circuit comprising resistance and a capacitor for example, and is made from a semiconductor switching element of thyrister which operates for the specified time, and a spark caused by inductive load is not generated, and life is lengthened. Circuit components mounted on an insulated substrate 35 such as ceramic is covered with an insulating material such as epoxy resin, an electrode is formed thereon, and a case 4, a bottom plate 5, and a name plate or the like are fixed, to form a discharge lamp ballast 9b. A starter fixing hole of the main body of a luminaire is made unnecessary, components are made common, and wiring work is also made easy.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge lamp ballast used for a discharge lamp such as a fluorescent lamp which requires a starter at the time of lighting, such as a glow start type lighting fixture.

[0002]

2. Description of the Related Art FIG. 10 shows a prior art of a glow start type discharge lamp ballast.

[0003] A discharge lamp ballast 9 forms a coil 2 by winding a conductor 2a around a bobbin 1 made of an insulating material.
And an iron core 3 formed by laminating iron plates, and these are covered from above and below with a case 4 and a bottom plate 5 formed of an iron plate. The lower end of the case 4 is caulked 4a to the bottom plate 5
And fixed. Further, a pair of coil terminals 6a, 6a made of a conductive material are fixed along the longitudinal direction of the upper part of the bobbin 1, and a lead wire (not shown) of the coil 2 is respectively connected to the coil terminals 6a, 6a. Solder connection is carried out, and solder 12 is provided on the terminal 6a.

[0004] The discharge lamp stabilizer 9 is used for lighting equipment, and the form of its use is shown in FIG. The lighting fixture 10 includes a box-shaped fixture main body 13 that opens downward, and a pair of lamp sockets 8, 8 that are fixed to the both ends in the longitudinal direction of the fixture main body 13 so as to protrude downward and are fixed. A straight tube fluorescent lamp 1
5 is detachably attached.

Further, the ballast 9 and the power supply terminal block 11 are attached to the top plate of the instrument body 13 with fastening parts such as screws. A starter socket 17 is attached to the inner side of the side plate of the instrument body 13 by a method not shown. A circular starter mounting hole 18 is formed in a side plate of the instrument body 13 to which the socket 17 is attached, and a circular starter mounting hole 18 is formed in the starter socket 17 through the starter mounting hole 18. A starter 7 is screwed and fixed from the outside.

As the starter 7, a so-called glow lamp is used, and this glow lamp is of a type in which a contact is brought into contact with and separated from the contact due to the deformation temperature dependency of a bimetal.

FIG. 12 is a wiring diagram showing the wiring of the luminaire. S is a starter 7 which is connected between the lamp sockets 8 and 8 by a lead wire, and has a lamp socket 8, a ballast 9 and a power terminal block. 11 corresponds to FIG. 11 according to the connection diagram.
Each is connected by a lead wire as shown in FIG.

[0008] Then, a plate-shaped cover 30 is attached to the lower opening of the instrument body 13 to cover the built-in components such as the ballast 9 and the power supply terminal block 11 with fastening parts such as screws.
A straight tube fluorescent lamp 15 is detachably mounted between the lamp sockets 8.

FIG. 13 shows a lighting apparatus using an electronic ballast or a rabbit start type ballast, and 9a shows an electronic ballast or a rabbit start type ballast.
Rabbit start type ballasts have a built-in lamp filament preheating circuit, and electronic ballasts rectify to DC and perform high frequency lighting by an inverter. Therefore, when lighting the lamp 15, the lighting device 10 b equipped with the electronic ballast or the rabbit start type ballast does not require a starter. Therefore, as shown in FIG. 11, it is not necessary to form a starter mounting hole in the side plate of the instrument body 13.

[0010]

As described above, some conventional lighting fixtures require a starter when turning on a lamp and others do not require a starter.

In a lighting fixture 10 requiring a starter, a ballast 9, a pair of lamp sockets 8, 8 and a starter socket 17 are mounted on a fixture body 13. Further, a glow lamp as the starter 7 is attached to the starter socket 17, and the glow lamp contacts and separates contacts depending on the deformation temperature dependency of the bimetal, so that the glow lamp can withstand an inductive load such as a discharge lamp ballast. The switching causes a spark at a contact built in the glow lamp, and the life of the glow lamp as a starter is short, and there is a problem that the life of the glow lamp cannot be obtained as long as the life of the ballast.

Further, a discharge lamp ballast 9 requiring a starter
In order to incorporate the starter 7 into the lighting fixture 10, in consideration of the easiness of the replacement work of the starter 7 as well as the replacement of the straight tube fluorescent lamp 15 mounted between the lamp sockets 8 of the lighting fixture. The starter 7 is provided on the side plate of the instrument body 13.
A starter mounting hole 18 for projecting the glow lamp outward is formed.

On the other hand, in a lighting fixture 10b equipped with a rabbit start type ballast or an electronic ballast,
Since a starter is not required, there is no need to provide a starter mounting hole in the instrument body 13.

In general, when a line-up of lighting equipment is provided, an electronic ballast that does not require a starter, a rabbit start type ballast, or a glow-type ballast that requires a starter is mounted on a body of the same shape. There are many series lineups. Therefore, the presence or absence of the starter mounting hole differs depending on the lighting device 10 requiring the starter and the lighting device 10b not requiring the starter.

Therefore, there is a problem in that the shape of the fixture body 13, which is an outer part of the lighting fixture, is different, which hinders standardization.

Further, a lighting apparatus 10 without using a starter
In (b), the wiring may be performed directly from the ballast 9a to the lamp sockets 8, 8, but in the lighting fixture 10 using the starter, the lamp socket 8 is connected via the starter socket 17.
Must be wired to

For this reason, there is a problem that the wiring specifications are classified and managed according to the presence or absence of the starter, and the length of the lead wire varies depending on the mounting position of the starter socket 17 to the appliance main body, which complicates the wiring operation. Was.

Also, a lighting fixture 10 requiring a starter
Then, the starter socket 17 must be attached to the inner surface of the instrument body 13. For this reason, there has been a problem that the mounting structure of the starter reduces the degree of freedom of layout of mounting components arranged inside the appliance body, for example, a ballast and a power terminal block.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a discharge lamp ballast for standardizing a lighting fixture.

[0020]

In order to achieve the above object, a discharge lamp ballast according to the present invention is used for a discharge lamp which requires a starter at the time of lighting, wherein the starter is mounted on the same substrate. And a starter circuit using a switching element, wherein the starter is built in a ballast case.

In the above configuration, since the starter is integrally mounted on the discharge lamp ballast, there is no need to provide a starter mounting hole in the instrument body. For this reason, it is possible to use the same fixture body as a lighting fixture using an electronic ballast or a rabbit start type ballast. In addition, the components other than the lead wires differ only in the ballast depending on the lighting method.

Furthermore, a ballast that does not require a starter, such as a rabbit start type ballast or an electronic ballast, and a ballast that requires a starter have the same number of parts to be attached to the lighting equipment, Since a structure is not required, the degree of freedom in the layout of components arranged in the lighting fixture increases.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Note that the same components as in the related art will be described with the same reference numerals.

FIG. 3 is a top view of a part of the case relating to the discharge lamp ballast.
Is formed by winding a conductor 2a around a bobbin 1 made of an insulating material. A pair of coil terminals 6a, 6a made of a conductive material is provided on one end side of the upper portion of the bobbin 1 along the longitudinal direction, and the other end. On the sides, a pair of starter terminals 6b, 6b made of a conductive material are fixed along the longitudinal direction by a method not shown. In the coil terminal 6a and the starter terminal 6b, the lead wire of the conductor 2a is fixed by welding by electric spot welding. A pair of leads 38 of a starter 34 to be described later are soldered to the pair of starter terminals 6b, 6b, respectively.

The starter 34 according to the present invention is constituted by a starter circuit (not shown) including a semiconductor switching element such as a thyristor or the like which operates for a predetermined time by using a time constant circuit including, for example, a resistor and a capacitor, and the time constant circuit. It works.

The starter 34 is, as shown in FIG.
Electronic components such as thyristors and capacitors, which are circuit components of the starter circuit, are mounted on an insulating substrate 35 such as a rectangular ceramic. Further, in order to protect these circuit components, the circuit components are coated 37 with an insulating material such as epoxy resin, and a pair of electrodes 36, 36 are provided on the insulating substrate 35, respectively. A pair of leads 38, 38 serving as output terminals of the starter circuit are connected to the respective 36, 36 by soldering.

The starter circuit may be formed monolithically using a semiconductor substrate, or may be extended by a conventional technique.
Create a combined structure on a semiconductor substrate and create a dielectric physically or chemically, or use the substrate material or its oxide as a dielectric to arrange electrodes close to both sides to function as a capacitor. Or a method of arranging resistors, or a method of arranging resistors by a method of chemically increasing the resistivity of the material of the substrate. These techniques are generally known techniques.

Next, as shown in FIG. 4, a part of or all of the starter 34 is covered, and the coil terminals 6aa, 6a and the starter terminals 6b, 6b are exposed to the outside in a substantially U-shaped cross section. The case 2 is covered with the coil 4 and the lower end of the case 4 is
After that, the nameplate 41 is attached to the upper surface of the case 4 to complete the discharge lamp stabilizer 9b.

As shown in FIG. 1, the leads 38 of the starter 34 are connected to the starter terminals 6b, 6b, respectively.
When soldering, the coaching 37 of the starter 34 is turned downward, and the coaching 37 and the coil 2
With an insulating film 40 interposed therebetween, the starter 34
Similarly, when the case 4 is covered with the coil 2, an insulating film 40 is interposed between the substrate 35 of the starter 34 and the case 4 when soldering the leads 38, 38 to the starter terminals 6 b, 6 b. Then, the case 4 is caulked 4a to the bottom plate 5.

FIG. 6 shows a lighting fixture using the discharge lamp ballast according to the embodiment of the present invention, and FIG. 5 shows a wiring diagram of the wiring of the lighting fixture.

The lighting fixture 10c comprises a box-shaped fixture main body 13 which is opened downward, and a pair of lamp sockets 8, 8 which are formed to protrude downward so as to face both ends in the longitudinal direction of the fixture main body 13. Further, the top plate 13a of the instrument body 13
Has a discharge lamp stabilizer 9b to which a starter can be attached and a power supply terminal block 11 attached with fastening parts such as screws. Since the starter 34 is mounted on the discharge lamp stabilizer 9b according to the present invention, it is not necessary to provide a starter mounting hole for mounting the starter in the appliance body.

A pair of lamp sockets 8,
After the discharge lamp stabilizer 9b with the starter 8 and the starter attached thereto and the power supply terminal block 11 are attached, these parts are connected by lead wires as shown in FIG.

First, the power terminal block 11 and the lamp socket 8a on one side are connected by soldering with lead wires. Further, one side of the lamp socket 8a and the starter terminal 6b are connected by soldering with a lead wire. Next, the starter terminal 6b and the lamp socket 8b on the other side are connected by soldering with a lead wire. Further, the other side of the lamp socket 8b and the coil terminal 6a are connected by soldering with a lead wire. Finally, the coil terminal 6a and the power supply terminal block 11 are connected by soldering with a lead wire to complete the lighting fixture 10c.

When the lighting fixture 10c is mounted on the ceiling, a power supply wire (not shown) provided in the ceiling is electrically connected to the power terminal block 11 from the top plate side of the lighting fixture. The lighting fixture is fixed to a ceiling (not shown) with a plurality of screws (not shown).

As shown in FIG. 4, the starter is mounted on the discharge lamp ballast by providing a pair of starter terminals on the bobbin of the coil, and connecting a pair of leads provided on the starter to these starter terminals. Although the description has been made by connecting each of them, the present invention is not limited to this, and the method described below may be used.

The discharge lamp ballast 9 according to the second embodiment
7C, as shown in FIGS. 7 and 8, instead of providing a pair of starter terminals on the bobbin 1, concave engagement recesses 45 are provided on both sides of the substrate 35 of the starter 34a. A pair of engaging projections 46, 46 are respectively provided facing the flange of the bobbin 1 so as to engage with the flanges 45, 45, and the starter 3 is attached to the pair of engaging projections 46, 46.
After engaging the engaging concave portions 45 of the starter 34 a with the case 4, the case 4 is
And fix by crimping the leads 38, 38 of the starter 34a.
The starter 34a may be sandwiched between the bobbin 1 and the case 4 so that the starter 34a is exposed to the outside. As shown in FIG. 1, an insulating film 40 is interposed between the conductor 2a and the coating 37 of the starter 34a, and between the substrate 35 of the starter 34a and the case 4.

The discharge lamp ballast 9 according to the third embodiment
As shown in FIG. 9, as shown in FIG. 9, the starter 34 is protected by the insulating film 40, and the starter 34 is mounted on the mounting recess 48 formed on the upper surface of the case 4.
By attaching the starter 34 to the case 4,
It is fixed by the upper surface and the nameplate 41.

As described above, the starter is constructed such that the lead of the starter is exposed to the outside in the discharge lamp ballast.
Other methods may be used as long as they can be integrally attached to the discharge lamp ballast.

The operation of the above embodiment will be described.

The starter according to the present invention has a starter circuit using a switching element formed on the same substrate. Since the starter circuit has no mechanical contact, a spark generated by an inductive load such as a discharge lamp ballast is provided. Does not occur.

Therefore, there is an effect that the life of the starter is prolonged, and it is possible to make a design equivalent to the life of the discharge lamp ballast.

Further, in the discharge lamp ballast according to the present invention, since the starter is integrally mounted on the discharge lamp ballast, the starter through-hole (see FIG. Need not be provided on the instrument body.

Therefore, even when a series of a discharge lamp ballast that does not require a starter and a series of lighting fixtures equipped with a discharge lamp ballast that requires a starter are lined up, the same fixture body can be used. Therefore, except for the lead wire, only the discharge lamp ballast differs only depending on the lighting method, so the number of parts to be attached to the lighting fixture is the same,
This has the effect of standardizing equipment parts other than the equipment assembly process and the ballast.

Further, in a type not using a starter,
What is necessary is to wire directly from the ballast to the lamp socket,
In the type using the conventional starter, since it is necessary to wire to the lamp socket via the starter socket, it was necessary to classify and manage the wiring specification according to the presence or absence of the starter.In the discharge lamp ballast according to the present invention, Since a starter having a starter circuit is integrally provided in the discharge lamp ballast, it is only necessary to wire the ballast directly from the ballast to the lamp socket, as in a lighting fixture equipped with a discharge lamp ballast that does not use a starter. The lengths are also substantially the same, which has the effect of greatly reducing the complexity resulting from the wiring work.

Further, even in a discharge lamp ballast that requires a starter, there is no need to arrange a starter socket inside the apparatus main body as in the prior art, and a discharge lamp ballast integrally provided with a starter is mounted on the apparatus main body. Just attach it. Therefore, since the mounting structure of the starter is not required, there is an effect that the degree of freedom of the device layout is increased.

Since the discharge lamp stabilizer and the coil in which the starter is integrally mounted in the fixture main body are built in, there is no need to mount the starter, and an effect of reducing the number of assembling steps is achieved.

[0047]

As described above in detail, according to the present invention, the discharge lamp ballast has a structure in which a starter in which a starter circuit using a switching element is formed on the same substrate is built in the ballast case. The following effects are obtained.

First, since a switching element is used in the circuit of the starter, no spark caused by an inductive load such as a discharge lamp ballast is generated, and the life of the starter is extended.

Secondly, a discharge lamp ballast that does not require a starter and a discharge lamp ballast that requires a starter have the same number of parts to be mounted on the lighting equipment, and are used in the equipment assembly process and the equipment parts other than the ballast. Can be standardized.

Third, even in a lighting device using a starter,
Since it is sufficient to wire from the lamp socket to the starter integrally attached to the ballast, the length of the lead wire is also substantially the same, and the complexity resulting from the wiring operation can be greatly reduced.

Fourth, even in a discharge lamp ballast that requires a starter, a starter mounting structure is not required, so that the degree of freedom in the layout of the fixture is increased.

[Brief description of the drawings]

FIG. 1 is a front view showing a discharge lamp ballast according to a first embodiment of the present invention.

FIG. 2 is a plan view showing a starter attached to the discharge lamp ballast according to the embodiment.

FIG. 3 is a top view showing a state where the case of the discharge lamp ballast according to the embodiment is partially broken.

FIG. 4 is a top view and a side view showing the discharge lamp ballast according to the embodiment.

FIG. 5 is a connection diagram showing wiring of the lighting fixture according to the embodiment.

FIG. 6 is a front view and a bottom view showing a state where the discharge lamp ballast according to the embodiment is mounted on a lighting fixture.

FIG. 7 is a plan view showing another starter attached to the discharge lamp ballast according to the embodiment.

FIG. 8 is a top view showing a state where another starter according to the embodiment is attached to a discharge lamp ballast.

FIG. 9 is a front view showing another state in which the starter according to the embodiment is mounted on a discharge lamp ballast.

FIG. 10 is a top view showing a discharge lamp ballast according to the related art,
Front view.

FIG. 11 is a front view and a bottom view showing a state where a discharge lamp ballast according to the related art is mounted on a lighting fixture.

FIG. 12 is a connection diagram showing wiring of a lighting device according to the related art.

FIG. 13 is a front view and a bottom view showing a state where a discharge lamp ballast according to the related art is mounted on a lighting fixture.

[Explanation of symbols]

 4: Case (ballast case), 9b, 9c, 9d: Discharge lamp ballast, 34, 34a: Starter, 35: Substrate.

Claims (1)

[Claims] 1. A discharge lamp ballast used for a discharge lamp which requires a starter at the time of lighting, wherein the starter has a starter circuit using a switching element formed on the same substrate, and the starter is a ballast case. Discharge lamp ballast characterized by being built inside.