JPH0649116Y2 - Discharge booster - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention comprises an electric circuit section composed of a resistor, a rectifying element, a condenser, etc., and an ignition transformer for boosting the current from the circuit section. The present invention relates to a discharge booster that generates a high voltage from an output terminal and causes spark ignition at a discharge electrode by the voltage.

<Prior Art> A spark is generated only by an electric circuit to ignite a gas burner or the like, and an AC power source as disclosed in Japanese Utility Model Publication No. 46-10543 is used to rectify the AC by a silicon control rectifying element or the like. Then, after accumulating electric charges in the capacitor, a current is caused to flow from the capacitor to the primary side of the ignition transformer so that a high voltage is taken out from the secondary side, and the voltage causes spark discharge in the discharge electrode. By the way, in such a discharge booster, as disclosed in Japanese Utility Model Publication No. 50-35974, an electric circuit section composed of a rectifying element, a capacitor, etc., and an ignition transformer for boosting the current from the circuit section are conventionally provided. Separated by a partition plate and housed in the same case, surrounded by a partition plate and the inner surface of the case around the transformer, filled with an insulating mold material and sealed in, and the transformer and the electric circuit part are taken out into the case. It was contained impossibility.

<Problems to be solved by the invention> For this reason, if the circuit part malfunctions due to internal leakage of the capacitor or the transformer is damaged,
It was uneconomical to replace the entire device. Further, since the electric circuit and the transformer are housed in the case, there is a drawback that the shape of the case becomes large.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a discharging booster that can eliminate the above-mentioned conventional drawbacks and can be easily electrically connected.

<Means for Solving Problems> In the present invention, an ignition transformer for boosting an input voltage is mounted in a main body case, the input end is pulled out to fill the case with an insulating mold material, and The main body case is provided with a take-out means capable of electrically taking out the high-voltage output end of the transformer from the outer surface of the main body case, and a fitting insertion groove is formed in the lower bottom portion on one side surface of the main body case.
Gate-shaped fittings with fitting grooves formed on both ends are provided, and an electric circuit part consisting of a rectifying terminal, a capacitor, etc. is attached, and an output fitting projection and an input fitting projection are provided on the lower edge. A plurality of fitting insertion projections that are longer than the depth of the fitting insertion groove, and at least the required conductive ends for conducting electricity to the electric circuit portion are formed on the output fitting projections and the input fitting projections. The printed circuit board is fitted with both side edges thereof into the fitting groove, the fitting projection is inserted into the fitting groove, the conductive end thereof is exposed downward, and the printed board is detachably fitted into the main body case. The booster device for discharge is characterized in that an input end of the ignition transformer is connected to a conductive end of the fitting projection and an external conductive path is connected to a conductive end of the input fitting projection.

<Embodiment> An embodiment of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a main body case having a substantially rectangular lower surface, and a large number of insertion holes 2 as an example of high-voltage output extracting means are provided on the upper surface at one side thereof, and needles are provided in the insertion holes 2. High voltage terminals 3 are planted respectively. The insertion hole 2
Is a large number so that it can be applied to, for example, a combustion appliance having a plurality of gas burners.

An ignition transformer 5 is built in the main body case 1 as shown in FIG. 2, and an insulating molding material 6 is filled so as to cover the ignition transformer 5. Also, the ignition transformer 5
The lead wires 7, 7 for feeding power to the input end of the primary side coil 5a are drawn out from the insulating mold material 6 to the outside.

The insulating mold material 6 fixes the ignition transformer 5 and shuts off heat generated from the ignition transformer 5 so as not to affect the electric circuit portion 16 having a heat-sensitive component such as a rectifying element described later. It is something to do.

On the other side surface of the case body 1, U-shaped gate-shaped fitting portions 10 are provided along both side edges and a lower edge. In the gate-shaped fitting portion 10, the crosspieces 11, 11 on both sides thereof have a U-shaped cross section to form a fitting groove 12, and the lower horizontal crosspiece 13 thereof has four fitting insertion grooves 14 in the figure. Each is formed.

Reference numeral 15 is a printed circuit board on which an electric circuit section 16 including a capacitor, a resistor, a silicon controlled rectifying element, etc. is mounted,
Output fitting insert projections 17a, 17a and input fitting insert projections 17b, 17b are formed on the lower edge thereof. The fitting protrusions 17a, 17a, 17
Conductive ends for energizing the electric circuit section 16 are formed on the b and 17b by printed wiring. Also this fitting protrusion
17a, 17a, 17b, 17b are formed longer than the depth of the fitting insertion groove 14.

The printed circuit board 15 having such a structure has an electric circuit portion 16 positioned outward, and both side ends thereof are fitted into the fitting grooves 12 and 12 from above, and are formed on the lower edge of the printed circuit board 15 for output. The fitting projections 17a, 17a and the input fitting projections 17b, 17b are fitted into the fitting grooves 14, respectively. Then, set the length to the insertion groove 14
Since it is longer than the depth of the
Since it projects downward from 14, the conductive end is exposed to the outside. Thus, it is detachably attached to the side surface of the main body case 1.

Then, the lead wires 7, 7 are connected to the conductive ends of the output fitting and inserting projections 17a, 17a on both sides of the main body case 1 which project outward from the lower horizontal rails 13, by soldering or the like. Further, as shown in FIGS. 2 and 3, lead wires for external connection 18 for input (external conductive paths) are connected to the input fitting projections 17b, 17b at the central portion by soldering or the like.

As shown in FIG. 4, the means for connecting the fitting / inserting projections 17b, 17b to the external conductive path is a cross rail of the gate-shaped fitting portion 10.
The L-shaped connection terminals 21, 21 may be provided with a plug 20 having the ends protruding upward, and the other ends of the connection terminals 21, 21 may be connected to the fitting projection 17b. The device of the present invention is unitized in the device, and its electrical connection is simplified.

Thus, the fitting protrusions 17a, 17a, 17b, 17b are attached to the main body case 1
Since it projects outward from the lower horizontal rail 13 of the, it is soldered to the lead wires 18 for external connection, and the L-shaped connection terminal 2
Connection with 1,21 can be done easily, improving workability.

In addition, mounting pieces 25, 25 having through holes are provided on the lower front and rear sides of the main body case 1, and bolts are screwed into the through holes to be fixed at appropriate positions.

The present embodiment has the above-described structure, and the high voltage cord 30 is externally fitted from the insertion hole 2 to the high voltage output terminal 3. Further, an AC power source is connected to the lead wires 18 and 18 (connection terminals 21 and 21) via an appropriate switch. The switch is configured to be closed by, for example, opening a valve of a gas appliance.
When electric power is supplied to the electric circuit section 16 by this switch closing circuit, the current is rectified by a rectifying element or the like and electric charges are accumulated in the capacitor, and the electric current flows from the capacitor to the primary coil 5a of the ignition transformer 5 and the secondary side. The voltage boosted by the coil 5b is taken out from the high voltage output terminal 3 by the high voltage cord 30, and ignition spark is generated at the discharge electrode.

In the above embodiment, the case of using an AC power supply is described, but the present invention can be used for a DC power supply such as a battery. In this case, in order to boost the DC voltage once, an electric circuit such as a blocking oscillator circuit is used. It may be provided in the section 16.

<Effects> As has been made clear in the above description, the present invention is configured so as to be separable by the two members of the ignition transformer 5 and the electric circuit section 16. It suffices to replace only one of them, and this can be achieved at a low cost. Moreover, at the time of this replacement, electrical connection becomes simple.

B) In the same way, the main body case 1 has a two-piece construction.
When the molding material 6 is directly filled in the main body case 1, the shape of the main body case 1 can be made small, and the filling process is performed once. Many can be applied to.

C) The printed circuit board 15 is placed on the gate-shaped fitting portion 10 provided on one side surface of the main body case 1, the electric circuit portion is positioned outward, and both side edges of the printed circuit board 15 are fitted into the fitting grooves 12 to form a fitting projection. Insert 17a and 17b 1
Since it is detachably attached by inserting it in 4, it is easy to attach and detach the printed circuit board 15 and the assembly speed becomes faster,
Yield is improved.

D) The fitting projections 17a, 17b are made longer than the depth of the fitting groove, and the fitting projections 17a, 17b are provided with conductive ends, and the fitting projections 17a, 17a are fitted in the fitting groove 14 of the main body case 1. Is inserted and the conductive end is exposed to the outside.
Electrical connection work such as soldering the conductive ends of a and 17a and the lead wires 7 and 7 can be easily performed from the outside, and workability is good.

And so on.

[Brief description of drawings]

The attached drawings show an embodiment of the present invention. Fig. 1 is a partially cutaway perspective view, Fig. 2 is a vertical sectional side view, Fig. 3 is a perspective view of an assembled state seen from below, and Fig. 4 is an assembled state. It is the same perspective view of another example of a state. DESCRIPTION OF SYMBOLS 1; Main body case, 2; Extraction opening, 5; Ignition transformer, 6; Mold material, 10; Gate fitting part, 12; Fitting groove, 14; Fitting groove, 15; Printed circuit board, 16; Electric circuit part , 17a, 17b: Fitting protrusion

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-52-3163 (JP, A) JP-A-57-46642 (JP, A) Actual opening Sho-59-78622 (JP, U) Actual opening Sho-57- 4292 (JP, U) Actual opening 55-112879 (JP, U) Actual opening 60-172329 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. An ignition transformer for boosting an input voltage is mounted in a case of a main body, the input end is drawn out to fill an insulating mold material in the case, and a high voltage output end of the transformer is connected to the main body. A gate type in which the body case is provided with a take-out means for electrically taking out from the outer surface of the case, and a fitting insertion groove is formed in the lower bottom portion and a fitting groove is formed at both end portions on one side surface of the body case. A plurality of fitting circuits each having a fitting portion, an electric circuit portion including a rectifying element, a condenser, and the like, and having at least a lower end including an output fitting projection and an input fitting projection and longer than the depth of the fitting groove. Of the printed circuit board, in which the required insertion end for energizing the electric circuit portion is formed on the output insertion protrusion and the input insertion protrusion, and the electric circuit portion is positioned outward. , Fit both side edges into the fitting groove, While inserting the insertion protrusion into the insertion groove to expose the conductive end thereof to be detachably inserted into the main body case, the input end of the ignition transformer is connected to the conductive end of the output insertion protrusion. Further, the discharging booster device is characterized in that an external conductive path is connected to a conductive end of the input fitting projection.