JPS608592Y2 - Hot air machine - Google Patents

Description

[Detailed description of the invention] This invention relates to a hot air fan, and its purpose is to make the hot air blown out from the outlet have a uniform temperature over the entire area of the outlet, and to make the air intake and exhaust through the wall of the house. This is because the connection with the top can be made well.

Generally, in the heat exchanger of a hot air fan, the temperature at a position far away from the burner section is lower, and the temperature of the hot air discharged from the outlet by the hot air fan varies.

In particular, when a combustion fan is installed on one side of the heat exchanger, the heat exchanger is extended to the space above the fan to obtain hot air, so the hot air is blown out through this part. The temperature of the air becomes lower than the temperature of the hot air blown through other parts, resulting in temperature fluctuations that cause discomfort to the user.

The present invention has been devised in view of these points, and one embodiment thereof will be described below with reference to the drawings.

In the figure, 1 is the housing of the hot air fan, with an outlet 2 and an inlet 3.
A removable front plate 4 is attached.

Reference numeral 5 denotes a heat exchanger built into the interior of the housing 1, and a warm air fan 6 is provided at the bottom of the heat exchanger, which converts the air sucked in through the suction port 3 and blown out from the air outlet 2 into warm air. It looks like this.

As shown in FIG. 6, this heat exchanger 5 includes two plates 5a,
5b are joined together, and a burner 7 and a combustion fan 8 for supplying combustion air to the burner section are integrally assembled therebetween.

Reference numeral 9 denotes an auxiliary heat exchanger disposed above the combustion fan 8 section of the heat exchanger 5, that is, in the low temperature zone farthest from the burner 7 section, and is formed in a substantially rectangular flat shape. , a suction connecting pipe 10 and a discharge connecting pipe 11 are provided at positions eccentric from the center.

The auxiliary heat exchanger 9 is rotatably connected by fitting the suction connecting pipe 10 into a protruding tube 12 provided on the back side of the heat exchanger.

Further, the discharge connecting pipe 11 of this auxiliary heat exchanger 9 is made to protrude to the outside through a long hole 13 formed in the back plate of the casing.

Reference numeral 14 denotes an intake/exhaust top fitted and connected to the discharge connecting pipe 11, which is composed of a double pipe of an intake pipe and an exhaust pipe, and extends through a through hole 16 in a wall surface 15 of the house.

In the above configuration, the burner 7 incorporated in the heat exchanger 5 obtains air from the combustion fan 8 and burns it, and its exhaust gas fills the heat exchanger 5 and is sent from the hot air fan 6. Converts the flowing wind into warm air.

The exhaust gas filling the heat exchanger 5 is then transferred to the protruding cylinder 12.
The air flows into the auxiliary heat exchanger 9 through the fan 6, where the air from the fan 6 is further converted into warm air.

At this time, the auxiliary heat exchanger 9 is farthest away from the burner 7 section, and is located in a lower temperature section where the combustion fan 8 is provided, so the temperature of the hot air passing through this section is lower than the burner 7 section. The temperature is almost the same as that of the warm air passing nearby,
Uniform warm air is blown out from the outlet 2.

On the other hand, since the auxiliary heat exchanger 9 is rotatably connected to the protruding tube 12 of the heat exchanger 5, if the auxiliary heat exchanger 9 is rotated with respect to the heat exchanger 5, the discharge will be disposed at an eccentric position. Connecting pipe 1
1 moves downward along the road along a long hole 13 provided in the back plate of the casing, as shown by arrow A in FIG.

Therefore, even if the position of the intake/exhaust top 14, which is provided through the wall surface 15 of the house, is slightly shifted, the connection therebetween can be made reliably.

That is, the connection with the intake/exhaust top 14 can be facilitated by using the auxiliary heat exchanger 9 that equalizes the temperature of the hot air.

In this way, according to the present invention, the temperature of the hot air blown out from the outlet can be made almost uniform, and it can also be easily connected to the intake/exhaust top, which has great practical value. There is something.

[Brief explanation of drawings]

Fig. 1 is a front view of the hot air fan of the present invention - an example, Fig. 2 is an enlarged front view of the main parts of the hot air fan, Fig. 3 is a partially cutaway back view of the hot air fan, and Fig. 4 is the same temperature. FIG. 5 is an enlarged perspective view of the main parts of the hot air fan, and FIG. 6 is an exploded perspective view of the main parts of the hot air fan. 5...Heat exchanger, 6...Fan (warm air fan), 7...Burner, 9...Auxiliary heat exchanger, 14... ...Intake and exhaust top.

Claims (1)

[Scope of utility model registration request] a burner, a heat exchanger connected to the burner, a warm air fan that blows air to the heat exchanger, an auxiliary heat exchanger rotatably connected to the low temperature section of the heat exchanger, and the auxiliary heat exchanger. 1. A hot-air fan comprising an intake/exhaust top connected to a heat exchanger, and characterized in that a connecting portion with the heat exchanger provided on the auxiliary heat exchanger and a connecting portion with the intake/exhaust top are eccentric.