JPH03113239A - Hot air heating device - Google Patents

Abstract

PURPOSE:To shorten each of cords of an ignition transformer and reduce a noise in other electrical lines by a method wherein the ignition transformer connected through each of the cords to a controller and a spark plug at an intermediate position between the controller and the spark plug out of the combustion chamber. CONSTITUTION:An ignition transformer 7 is arranged between a side wall of a combustion chamber 3 and another side wall of a main body case 1, i.e. at an intermediate position between a controller 2 and a spark plug 6 out of the combustion chamber 3. This position corresponds to an upper part of the combustion chamber 3. In this way, an arrangement of the ignition transformer 7 enables a primary cord 8 from the controller 2 and a secondary cord 9 for the spark plug 6 to be shortened together. With such an arrangement, a noise influence by the cords 8 and 9 on other wires is reduced.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a hot air heating device.

<Prior Art> FIG. 3 shows the internal structure of a conventional oil hot air heating system as viewed from the front.

A controller 2 is provided at the top of a main body case 1 of the device, and a fan 4 is provided below a combustion chamber 3.

Reference numeral 5 denotes a burner provided in the combustion chamber 3, and the burner 5 is ignited by discharge from a spark plug 6. An ignition transformer 7 that applies high voltage to the spark plug 6 is provided at the bottom of the main body case 1, and a primary cord 8 from the controller 2 at the top is connected to the ignition transformer 7. Further, a high voltage secondary cord 9 is connected from the ignition transformer 7 to the spark plug 6.

<Problems to be Solved by the Invention> By the way, since the above-mentioned ignition transformer 7 is relatively heavy and takes up a large volume, the installation location of the ignition transformer 7 has conventionally been determined to be at the bottom of the main body case 1. .

As a result, the ignition transformer 7 is placed at the bottom, the controller 2 is placed at the top, and the spark plug is placed near the center.
Both were getting longer.

However, as this code 8.9 becomes longer,
The inventors of the present invention have noticed the disadvantage that the resulting noise has a large influence on other electric wires.

Therefore, the present inventors decided to shorten the length of the above-mentioned wiring by changing the installation position of the ignition transformer, and completed the present invention.

<Means for Solving the Problems> The hot air heating device of the present invention includes a controller at the top of the main body case above the combustion chamber, a fan below the combustion chamber, and a burner in the combustion chamber. On the other hand, a spark plug is used to ignite, the fan sucks air for combustion into the combustion chamber from the outside, and the high temperature gas generated in the combustion chamber is sucked downward by the fan and blown out to the front of the main body case. A first aspect of the hot-air heating device includes an ignition transformer connected to the controller and the ignition plug by cords, located outside the combustion chamber and at an intermediate position between the controller and the ignition plug. It is a feature of

In addition to the first feature, the hot air heating device of the present invention has a second feature in that a cooling hole is provided in the wall of the combustion chamber near the ignition transformer.

<Operation> According to the first feature of the present invention, by disposing the ignition transformer at an intermediate position between the controller and the spark plug, the cord of the ignition transformer can be considerably shortened, and as a result, , the influence of noise on the objective line is reduced.

According to the second feature of the present invention, in addition to the first feature, by providing the cooling hole, the cold air sucked into the main body case by the rotation of the fan further passes through the ignition transformer. It is sucked into the combustion chamber through the cooling holes. Therefore, the temperature of the ignition transformer can be kept low even by heat from the combustion chamber.

<Embodiment> FIG. 1 is a front view of the internal configuration of an oil hot air heating apparatus showing an embodiment of the present invention, and FIG. 2 is a diagram of the internal configuration similarly viewed from the left side.

A controller 2 is installed at the top of the device body 1.
This is similar to the conventional example shown in FIG. 3 in that a fan 4 is provided below the combustion chamber 3 and a spark plug 6 for igniting the burner 5 is provided.

In this embodiment, the ignition transformer 7 is arranged between the side wall of the combustion chamber 3 and the side wall of the main body case 1, that is, outside the combustion chamber 3, at an intermediate position between the controller 2 and the spark plug 6. This position corresponds to the upper part of the combustion chamber 3. By arranging the ignition transformer 7 in this manner, both the primary cord 8 from the controller 2 and the secondary cord 9 from the spark plug 6 can be shortened. This makes it possible to reduce the influence of noise on the objective line due to code 8.9.

In addition, one or more cooling holes 10 are provided in the combustion chamber wall near the ignition transformer 7, and an air supply port 1 provided in the main body case 1 is provided.
The air taken in from 1 passes through the surface of the ignition transformer and is sucked into the combustion chamber 3 through the cooling hole 10. By rotating the fan 4, the inside of the main body case l and the inside of the combustion chamber 3 are made negative pressure, and as a result, air entering from the air supply port 11 is sucked into the cooling hole 10 while cooling the ignition transformer 7. I'm going to go. Note that high-temperature gas due to combustion in burner 5 comes out from the ceiling of combustion chamber 3, and
is sucked downward by the fan 4, and then blown out to the front of the main body case 1.

Although the embodiment has been described with respect to an oil hot air heating system, the present invention can be similarly applied to gas hot air heating systems.

Effects> The present invention has the above configuration, and according to the hot air heating device according to claim 1, since the ignition transformer is disposed at an intermediate position between the controller and the spark plug, each of the ignition transformers The cord can be shortened, and the influence of noise on the objective line can be reduced.

According to the hot air heating device according to claim 2, in addition to the effects achieved by the configuration of claim 1, since the cold air sucked by the fan is sucked into the cooling hole while contacting the ignition controller, The ignition controller is cooled,
The influence of heat from the combustion chamber can be prevented.

[Brief explanation of drawings]

Figure 1 is a front view of the internal configuration of an oil hot air heating system showing an embodiment of the present invention, Figure 2 is a view of the internal configuration similarly viewed from the left, and Figure 3 is a front view of the internal configuration of a conventional system. It is a diagram. 1: Main body case 2: Controller 3: Combustion chamber 4: Fan 5: Burner 6: Spark plug 7: Ignition transformer 8: Primary side cord 9: Secondary side cord 10: Cooling hole 11: Air supply port Figure 2 Figure 1 Figure 3

Claims (2)

[Claims] (1) A controller is provided at the top of the main body case above the combustion chamber, and a fan is provided below the combustion chamber, the burner in the combustion chamber is ignited using a spark plug, and the fan is used to This hot air heating device sucks combustion air into the combustion chamber from the combustion chamber, sucks high-temperature gas generated in the combustion chamber downward by the fan, and blows it out to the front of the main body case. . A hot air heating device, characterized in that an ignition transformer is disposed at an intermediate position between the controller and the ignition plug, the ignition transformer being connected to the controller and the ignition plug by cords, respectively. (2) The hot air heating device according to claim 1, further comprising cooling holes provided in the wall of the combustion chamber near the ignition transformer.