JPH077909Y2 - Gas clothes dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a gas clothes dryer.

[Prior Art] FIGS. 5 and 6 show a conventional clothes dryer.

Reference numeral 1 is a main body, 2 is a drum incorporated in the main body 1 so as to rotate in a positive direction about a horizontal axis, 3 is a front side of the drum 2, and a hot air outlet 4 is provided at a rising portion of the rotation.
A burner box provided with 5, a gas burner, 6 a main nozzle, 7 a gas pipe, 8 a governor, 9 a solenoid valve, 10 a connection port, 11 a motor, and the rotation of this motor 11 is the shaft 12, the drive The rotation is transmitted to the drum 2 via the gear 13 and the drum belt 14, and the rotation is transmitted to the suction fan 18 via the drive pulley 15, the belt 16 and the fan pulley 17.

In the gas clothes dryer having the above-mentioned configuration, clothes are put into the drum 2, the drum 2 is normally rotated by the motor 11, and the air in the drum 2 is sucked by the suction fan 18 and discharged to the outside. The generated hot air is blown from the burner box 3 to the rising portion in the drum 2 via the air outlet 4, and the clothes are dried by this hot air.

[Problems required for the prior art] In the gas clothes dryer having such a configuration, in order to increase the capacity that can be dried at one time and to shorten the drying time, the drum 2 is increased and the combustion amount of the gas burner 5 is increased. The means of increasing the

However, if such a means is adopted, the following problems occur.

a. The dryer is large and difficult to install in general households.

b. The rotation of the drum 2 is always in the same direction, and the hot air outlet 4 is also in the same position. Therefore, if the clothes in the drum 2 are solidified, uneven drying occurs or the portion near the outlet 4 is rotated. Only the clothing temperature rises excessively and damages the clothing.

c. Noisy.

An object of the present invention is to provide a gas clothes dryer capable of increasing the capacity and speed while eliminating the drawbacks described in ac.

[Means for Solving the Problems] The configuration of the present invention is as follows.

The outlet of the burner box is provided along the drum in addition to the main outlet, a plurality of sub outlets are installed, an exhaust temperature or humidity detection sensor is installed in the exhaust passage, and it is detected by the exhaust temperature or humidity detection sensor. A gas clothes dryer, characterized in that when the temperature or humidity is equal to or higher than a set value, a controller is provided to control hot air to be distributed from the sub outlet in addition to the main outlet.

Alternatively, a damper may be installed in the burner box and the damper may be controlled by a controller to control the blowout and the air volume from the main outlet and the sub outlet.

Further, the combustion amount of the gas burner may be simultaneously reduced when the temperature or humidity detected by the exhaust gas temperature or humidity detection sensor is equal to or higher than a set value.

[Operation] The clothes put in the drum are dried by the hot air generated by the gas burner. In this drying, hot air is intensively blown from the main outlet to the rising portion of the drum in the constant rate period (when the cloth is still wet). The progress of drying is
It is monitored by the exhaust temperature or humidity detection sensor, and when the signal from the sensor shows a certain set temperature or humidity,
The controller controls the hot air to blow out from all the main and sub outlets. As a result, the hot air blown to the clothes in the drum is dispersed and does not concentrate on a part.

[Embodiment] An embodiment of the present invention is shown in FIGS.

Reference numeral 1 is a main body, 2 is a drum incorporated in the main body 1 so as to rotate forward about a horizontal axis, and 3 is a burner box having a bifurcated outlet side, one of which is a main outlet.
4a and the other is the sub outlet 4b. A plurality of sub outlets may be provided. 3a is in the burner box 3,
The damper 3a is driven by the drive motor 22 as a damper for controlling the blowing of the main outlet 4a and the sub outlet 4b. 5 is a gas burner, 6 is a main nozzle, 7 is a gas pipe, 8 is a governor, 9 is a solenoid valve, 10 is a connection port, 11 is a motor, and the rotation of this motor 11 is a shaft 12, a drive gear 13, a drum belt 14 Is transmitted to the drum 2 via the drive pulley 15, the belt 16, and the fan pulley 17 and is then transmitted to the suction fan 18.

Reference numeral 19 denotes a temperature sensor (humidity sensor) installed in the exhaust passage 20, and the temperature (or humidity) detected by the temperature sensor 19 is input to the controller 21. When the input temperature (or humidity) reaches the set temperature (or humidity), the controller 21 drives the drive motor 22 of the damper 3a to drive the main outlet.
The hot air is controlled to blow out not only from 4a but also from the sub outlet 4b. At this time, the air volume may also be controlled.

The damper 3a in the burner box 3 may control the blowing by rotating the rotary damper 3a with the drive motor 22 as shown in FIG. 2, or as shown in FIG. The blow-out may be controlled by sliding the type damper 3a with the drive motor 22.

FIG. 4 shows changes in the drying temperature (exhaust gas temperature) in the above-mentioned embodiment. The drying temperature rises sharply at the beginning of operation, then gradually rises, and after being controlled so as to be dispersed and blown out from the main and sub outlets, the drying temperature is repeated up and down a little and then reaches the drying end temperature.

[Effects of the Present Invention] The effects of the present invention are as follows.

a. During the constant period, the combustion amount of the gas burner is increased to generate strong hot air, which is intensively blown out from the main outlet to rapidly evaporate the water, and then dispersed from the sub outlet as well. Because hot air is blown out, there is no concern that hot air will concentrate on a part and uneven drying will occur, or part of it will overheat and damage clothes.

b. Due to the above-mentioned strong drying, when compared with the conventional dryer,
The drying time can be reduced and the amount of clothes that can be dried at one time can be increased.

c. Due to the effect of the above b, in the case of a dryer having the same capacity as the conventional one, the size can be reduced.

[Brief description of drawings]

1 is a sectional view of a gas clothes dryer according to the present invention, FIG.
FIG. 3 is an explanatory view of a method of switching the drum, the burner box and the damper, and FIG. 4 is an explanatory view showing a change of the drying temperature,
5 and 6 are explanatory views of a conventional gas clothes dryer. 1 ... Main body, 2 ... Drum 3 ... Burner box, 3a ... Damper 4a ... Main outlet, 4b ... Sub outlet 11 ... Motor, 18 ... Suction fan 19 ... Temperature sensor, 20 ...... Exhaust passage 21 …… Controller, 22 …… Drive motor

Claims (4)

[Scope of utility model registration request] 1. An exhaust air temperature or humidity detection sensor, wherein an exhaust air outlet of a burner box is provided along a drum in addition to a main air outlet, and an exhaust gas temperature or humidity detection sensor is installed in an exhaust passage. When the temperature or humidity detected in the above is higher than the set value, a controller is provided to control hot air to be distributed from the sub outlet side in addition to the main outlet side. Machine. 2. A damper is installed in the burner box,
The gas clothes dryer according to claim 1, wherein the damper is controlled by a controller to control the blowing amounts of the main outlet and the sub outlet. 3. The gas clothes dryer according to claim 1, comprising a plurality of sub outlets. 4. The gas clothes dryer according to claim 1, wherein the combustion amount of the gas burner is simultaneously reduced when the temperature or humidity detected by the exhaust temperature or humidity detection sensor is equal to or higher than a set value.