JPS645600Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a dryer that uses a refrigeration cycle to dry clothes and the like.

[Conventional technology]

FIG. 1 is a cross-sectional view of a conventional dryer shown in, for example, Japanese Utility Model Publication No. 58-20870. A door 5 for opening and closing the opening 4 is provided with a ventilation hole 6 and a heater 7, and an exhaust hole 8 is provided in the rear plate to communicate with an exhaust duct 9. This exhaust duct is provided with a fan 10 for blowing air, and an electric motor 1 that rotates the rotating drum 3 via a belt 11.
2, it was designed to be rotated via a belt 13.

In the conventional device configured as described above, when the switch is turned on, the electric motor 12 rotates and the heater 7 is energized. As a result, the rotating drum 3
As the fan 10 rotates, the indoor space is sucked in through the ventilation hole 6, heated by the heater 7, and hot air is supplied to the drying chamber 2. This hot air removes moisture from the objects to be dried stored in the drying chamber 2 and is discharged through the exhaust duct 9 from the exhaust hole 8 on the back side. Since the dryer that dries the items to be dried in this way is generally installed indoors, the humid warm air taken away from the items to be dried is discharged indoors, increasing the indoor temperature and humidity, especially during the rainy season and summer. It will be unpleasant for some people.
Further, since the hot air heated by the heater 7 is discharged, it cannot be reused and the heat utilization efficiency is deteriorated.

[Summary of the idea]

This invention was made with the aim of improving the above-mentioned drawbacks.The evaporator and condenser of the refrigeration cycle are provided in a drying chamber provided inside the outer casing, and a part of the evaporator is disposed outside the outer casing. As a result, humid hot air is not discharged into the room, which does not impair the indoor atmospheric conditions, and the dryer is capable of reusing heat and is highly efficient in heat utilization.

[Example of idea]

FIGS. 2 to 4 show an embodiment of this invention, and in the figures, 21 is an outer casing provided with an opening 22 for entering and exiting the material to be dried on the front surface, and 23 is an opening 22 of this outer casing. A sealed door 24 that opens and closes is rotatably provided in the outer casing, and the inside is a drying chamber 24.
A is a rotating drum with openings on the front and back sides, and the front opening can be opened and closed by a door. Reference numeral 25 denotes a back plate provided to close the back opening of the rotating drum, and a drain receiver 26 and a drain discharge pipe 27 are provided at the lower part. 28 is a condenser, 29 is a compressor, and 30 is an evaporator, which are formed from a drain recovery section 30a and a heat absorption section 30b, and the heat absorption section 30b is attached to the back surface of the outer casing 21. 31 is the aperture resistance,
The condenser 28, the compressor 29, the evaporator 30, and the throttle resistor 31 are communicated with each other via the pipe body 32 to form a refrigeration cycle, and the condenser 28 and the drain recovery section 30a are provided inside the back plate 25. 3
It is arranged in a ventilation passage 34 partitioned by a ring-shaped partition plate 33 so that the surface area 0a is approximately 1/5 of the surface area of the condenser 28. A fan 35 stirs the air in the drying chamber 24a, and is rotated by an electric motor 36 to blow the air. 37 is an electric motor provided with a pulley 38 and rotates the rotary drum 24 via a belt 39.

This device is constructed as described above, and the material to be dried is stored in the drying chamber and a time switch (not shown) is activated.
By turning on, compressor 29, electric motor 36
And the electric motor 37 is driven. As a result, the drying chamber 24a is heated by the condenser 28 and removes moisture from the material to be dried, and the moisture in the humid hot air touches the surface of the drain collection section 30a, condenses, and flows from the drain receiver 26 through the drain drain pipe 27 to the outside. The humidity inside the drying chamber 24a is lowered. At this time, the drying chamber 24
The air inside a flows through the central opening of the partition plate 33 to the fan 3.
5, and circulates from the ventilation passage 34 through the condenser 28 and the drain recovery section 30a, heating and recovering the drain while stirring. absorb and supply. On the other hand, the electric motor 37 rotates the rotary drum 24 via a belt 39 to agitate the material to be dried so that the heated air evenly hits the material to be dried. The heat in the drying chamber 24a heated in this way can be effectively used to remove moisture while recovering the heat in the drying chamber 24a.
The humid and warm air inside a is not discharged to the outside (indoor) and does not impair indoor atmospheric conditions.

In the above embodiment, the electric motor 37 for rotating the rotary drum 24 and the electric motor 36 for rotating the fan 35 are provided respectively, but the same operation can be expected even if the electric motors serve as both.

[Effect of idea]

As explained above, this invention is a condenser with a part of the evaporator of the refrigeration cycle used as a drain collection part in a drying chamber that is installed inside the outer casing and is sealed by closing the openable door provided in the outer casing. Air that is disposed outside the outer casing with a part of the evaporator of the refrigeration cycle as a heat absorbing part, and that forms an agitated flow in the drying chamber that passes through the evaporator and condenser in the drying chamber. Since a stirring fan is provided in the drying chamber, the drying chamber can be made almost airtight, so humid hot air is not discharged into the room as in the past, and the atmosphere inside the room is not spoiled. Furthermore, the heat heated by the condenser can be recovered by the evaporator, which has the effect of increasing heat utilization efficiency.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a conventional example, Fig. 2 is a sectional view showing an embodiment of this invention, Fig. 3 is a front view showing the condenser and evaporator, and Fig. 4 is a refrigeration cycle. FIG. In addition, the same reference numerals in each figure indicate the same or corresponding parts, 24 is a rotating drum, 24a is a drying chamber, 28
30 is a condenser, 30 is an evaporator, 30a is a drain recovery section, 30b is an endothermic section, and 35 is a fan.

Claims (1)

[Scope of utility model registration request] A part of the evaporator of the refrigeration cycle is disposed together with the condenser as a drain collection part in a drying chamber that is provided in the outer casing and is sealed by closing a door that can be opened and closed provided in the outer casing. A part of the evaporator is disposed outside the outer casing as a heat absorbing part, and an air agitation fan is provided in the drying chamber to form an agitation flow inside the drying chamber that passes through the evaporator and condenser in the drying chamber. A dryer characterized by the following: