JP2535404Y2 - Discharge lamp ballast capacitors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an improvement of a capacitor for a discharge lamp ballast, and more particularly, to a method of connecting a capacitor to a transformer of a ballast.

2. Description of the Related Art As shown in FIG. 5, for example, a conventional capacitor for a discharge lamp ballast includes a coil 2 wound around a large number and an iron core 3 laminated at one end of a storage case 1 in which a capacitor is stored. Are abutted, and a heat insulating material 5 is interposed between the capacitor and the transformer unit 4. Further, the capacitor and the transformer section 4 are connected by a plurality of lead wires 6 and are housed in a ballast case so that most of the heat of the transformer section is not transmitted to the capacitor.

By the way, according to this type of ballast for fluorescent lamps, the temperature of the coil of the transformer is about 100 ° C. On the other hand, the maximum allowable temperature of a capacitor is generally 85 ° C. except for a special case, and thus a structure using this heat insulating material is generally used.

According to the same structure, a ballast for a 40-watt fluorescent lamp, when a resin insulation material with a width of 2 cm is installed between the capacitor and the transformer, the temperature of the capacitor is 60 ° C at a place with an ambient temperature of about 30 ° C. ~ 70 ° C.

[Problems to be solved by the invention]

However, according to the discharge lamp ballast capacitor described above,
When the capacitor, the transformer section 4 and the heat insulating material 5 are combined and stored in the ballast case, the capacitor and the heat insulating material 5
Are connected by a tape, for example.

However, when the capacitor and the heat insulating material 5 are connected by a tape, the operation is troublesome.

Further, when the capacitor and the heat insulating material 5 are connected by a tape and come into contact with the transformer section 4, the spacing between the capacitor and the transformer section 4 varies in dimension, and the lead wire 6 having a predetermined length has the same procedure. However, there is a disadvantage that the capacitor and the transformer unit 4 cannot be connected.

[Purpose of the invention]

The present invention was devised in view of the above points,
With a heat insulating material between the capacitor and transformer, it can be easily supported without dimensional variation,
It is another object of the present invention to provide a fluorescent lamp ballast capable of suppressing a rise in the temperature of a capacitor to a predetermined value or less.

[Means for solving the problem]

The present invention has the following configuration to solve the above-mentioned problem. That is, the capacitor is stored in a storage case having a pair of hooking claws at one end.

Also, the hooking pawl is hooked and supported on the end of the transformer section via a heat insulating material of a predetermined length or a heat insulating material, and one end of the heat insulating material is brought into contact with the transformer section.

Further, the free ends of the lead wires of a predetermined length led out from the capacitor housing case are connected to a transformer, and they are housed in a ballast case, and are fixed with a filler material.

[Action]

According to the condenser for a discharge lamp ballast described above, the retaining claw of the storage case accommodating the capacitor therein is supported by being hooked to the end of the transformer section through a predetermined length of heat insulating material or heat insulating material. Since one end of the material is configured to abut on the transformer part, the distance between the two is supported at a predetermined interval and supported by a lead wire of a predetermined length, and the lead wire is too short or too long and slack It is securely supported without any problems and can be easily assembled.

Further, the heat of the transformer can be prevented from being transmitted to the capacitor, and the temperature rise of the capacitor can be suppressed to a predetermined value or less.

〔Example〕

Hereinafter, the present invention will be described with reference to FIGS. In the figure, reference numeral 11 denotes a capacitor storage case, which has a pair of hooking claws 12 at one end and a capacitor 13 stored therein. The hooking claw 12 has a structure in which the tip is hooked on a heat insulating material having a predetermined length as shown in FIG. 1, or is hooked and supported on an end portion of the transformer portion via a heat insulating material as shown in FIG. Any structure may be used.

Reference numeral 14 denotes a heat insulating material that is supported by being hooked on the hooking claws 12 of the capacitor storage case 11, and is made of, for example, urethane foam.

Reference numeral 15 denotes a transformer, and reference numeral 16 denotes an iron core constituting the transformer section 15, which is formed by stacking, for example, a large number of E-type cores and I-type cores. Reference numeral 17 denotes a primary coil configured in combination with the iron core 16, and reference numeral 18 denotes a secondary coil. Reference numeral 19 is a lead wire connecting the capacitor 13 and the transformer unit 15. The capacitor and transformer configured in this way are stored in the ballast case,
A resin is filled and fixed.

[Effect of the invention]

According to the discharge lamp ballast capacitor having the above structure,
The latching claw of the capacitor storage case is supported by being hooked to the end of the transformer section through a heat insulating material or a heat insulating material, and one end of the heat insulating material is in contact with the transformer section. , So that the interval between them is maintained at a predetermined interval, and the lead wire is securely supported without being too short or too long to cause slack, and the length of the lead wire is taken into consideration. It can be easily assembled without the need.

Further, there is an advantage in that high heat from the transformer portion can be prevented from being transmitted to the capacitor by the heat insulating material, and the temperature rise of the capacitor portion can be suppressed to a predetermined value or less.

[Brief description of the drawings]

1 is a perspective view of a main part when a transformer is combined with a discharge lamp ballast capacitor according to the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a partial perspective view of FIG. FIG. 4 is a plan view of another embodiment, and FIG. 5 is a perspective view of an essential part when a transformer is combined with a conventional capacitor for a discharge lamp stabilizer. 11 ... Capacitor storage case 12 ... Hanging claw 13 ... Capacitor 14 ... Heat insulator 15 ... Transformer 16 ... Iron core 17 ... Primary coil 18 ... Secondary coil 19 ... Lead wire

Claims (1)

(57) [Scope of request for utility model registration] 1. A discharge lamp ballast capacitor comprising: a capacitor disposed at a predetermined interval from a transformer section; a capacitor case; and a capacitor fixed to the discharge lamp ballast. At one end of the storage case,
A pair of hooking claws are formed, and the hooking hooks are hooked and supported on the end of the transformer section via a heat insulating material or a heat insulating material of a predetermined length, and furthermore, are drawn out from the capacitor storage case. A capacitor for a discharge lamp ballast, wherein a free end of a lead wire having a length is connected to a transformer section.