JPH0768093A - Clothes dryer - Google Patents

Abstract

PURPOSE:To rotate a double-wing fan, rotating drum and motor smoothly, and achieve a stable drying by a clothes dryer which dries clothes by circulating hot air in the rotating drum driven by the motor. CONSTITUTION:Hot air is circulated in a rotating drum 5 which is rotatably arranged in an external frame 1. At the same time, the circulating air and cooling air are heat-exchanged by a double-wing fan 6, and the double-wing fan 6 is stored by a circulating side fan case 109 and cooling side fan case 130. The circulating side fan case 109 is formed of a metal plate with rigidity, and a shaft 10 which axially supports the rotating drum 5 and double fan 6 is fixed at the approx. center of the circulating side fan case 109. At the same time, on the outside of the circulating fan case 109, attaching parts 109b, 109d which are fixed on four edges of the external frame 1 are extended.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clothes dryer which circulates warm air in a rotary drum which is driven by a motor to dry clothes.

[0002]

2. Description of the Related Art Conventionally, this type of clothes dryer has been constructed as shown in FIGS. The configuration will be described below.

In FIG. 16, 1 is an outer frame, 2 is a heater that serves as a heat source, and 3 is a heater cover that accommodates the heater 2 and has an opening communicating with the hole 4a of the drum front plate 4. The rotating drum 5 stores and stirs clothes. The double-blade fan 6 exchanges heat between the cooling air 7 and the circulating air 8 and has a blowing function, and is housed in a fan case 9. Shaft 1
Reference numeral 0 designates a rotary drum 5 and a double-blade fan 6, and the shaft 10 is fixed to a shaft support plate 11, and the shaft support plate 11 is attached to the outer frame 1. 12
Is a circulation duct, 13 is a drainage port, and the motor 14 rotationally drives the rotary drum 5 and the double-blade fan 6. Back plate 15
Has a hole 15x for taking in the cooling air 7. The fan contact plate 6 covers the cooling side of the fan case 9. The drum belt 17 and the fan belt 18 drive the rotary drum 5 and the double-blade fan 6, respectively, and are made of resin. The fan pulley 19 is fixed to the both-wing fan 6 and is formed of a metal plate. The bearing 20 is fixed to the double-blade fan 6 and rotates around the outer circumference of the shaft 10. The temperature detector 21 is a detector for determining the drying time based on the temperature after heat exchange, and is fixed to the heater cover 3. The control unit 22 controls the drying time by the temperature detection unit 21.

In the above structure, when the motor 14 rotates, the drum belt 17 and the fan belt 18 rotate the drum 5 and the two-blade fan 6. When the double-blade fan 6 rotates, cooling air 7 and circulating air 8 are generated, and the circulating air 8 reaches the heater 2 via the circulation duct 12 and is heated by the heater 2 and introduced into the drum 5 to dry the clothes. , Forming a flow of returning to the both-wing fan 6 again. On the other hand, the steam of the circulating air 8 that has exchanged heat with the clothes and has become hot and humid becomes condensed water, and is drained to the outside of the outer frame 1 through the drain port 13.

As for the structure of the fan case 9, as shown in FIG. 17, the fan case 9 is made of resin or an iron plate, the two-blade fan 6 is housed in the fan case 9, and the both-wing fan 6 is supported by the shaft support plate 11. The fan case 9 was pivotally supported and fixed, and fixed to the outer frame 1 at two horizontal positions. Here, the motor 14 was fixed above the outer frame 1 as a separate unit.

The heights of the vortex chamber on the circulation side and the cooling side of the fan case 9 were constant (circulation side: a, cooling side: b) over the entire fan case 9 as shown in FIG.

The end face of the exhaust port of the fan contact plate 16 is
As shown in FIG. 20, the cut surface remained as it was, and the vicinity of the tongue portion on the cooling side remained flat.

Further, as shown in FIG. 21, the circulation side vortex chamber is formed in the direction opposite to the rotation direction β of the double-blade fan and the flow direction γ of the condensed water.

Further, as shown in FIG. 22, the fan case 9 has a metal surface over the front surface when the circulation side is made of an iron plate.

Further, as shown in FIGS. 23 and 24, the hole 4a of the drum front plate 4 is a burring hole, and the wire net 23 is arranged between the drum front plate 4 and the heater cover.

Further, as shown in FIG. 25, the motor 14 is fixed by forming the collar portion 14a on the motor 14 and inserting the cushioning material 24 made of rubber into the collar portion 14a to support the support plate 25 and the holding plate. 26 is a tightening unit with screws 27 from above and below.

[0012]

As described above, in the conventional clothes dryer, since the shaft support plate 11 is fixed to the outer frame 1 at two positions in the horizontal direction, the drum 3 and the two-bladed fan 6 are provided.
And the load of the fan case 9 is applied to the shaft 10,
The shaft support plate 11 is bent in the α direction shown in FIG.
The shaft center of the shaft 10 may be deviated to hinder the rotation of the drum 3 and the double-blade fan 6, and the rotation may be reduced. Further, since the unit of the motor 14 is attached to the outer frame 1 formed of a thin iron plate, the motor 14 and the rotary drum 5,
The axial distance of the double-blade fan 6 was not fixed, and the rotation was sometimes unstable.

Further, in the conventional assembling method, as shown in FIG. 18, the fan case 9, the shaft support plate 11 and the drum 3 were used as blocks, but the drum front plate 4 for axially supporting the drum 3 and the drum front plate 4 were used. Was separate until the end of assembly,
The dimensional accuracy of the assembly of the rotary drive part was unstable.
Further, since the heights of the circulation side and cooling side vortex chambers of the fan case 9 were the same throughout the fan case 9, there was a limit to the increase of the circulating air volume, and noise was loud due to the wind noise of the cooling exhaust port. .

The exhaust port of the fan contact plate 16 is shown in FIG.
As shown in 0, the cut surface is a cause of wind noise, and the vicinity of the tongue portion 9φ of the fan case 9 is also a flat surface. Therefore, air leakage occurs from the mating portion of the fan case 9 and the fan contact plate 16. However, there is a problem that the cooling performance deteriorates.

Further, in the circulation side vortex chamber, since the rotating direction of the double-blade fan 6 is opposite to the flow direction of the condensed water, the drainage of the condensed water is alienated by the circulating wind, leading to a decrease in dehumidification amount.

Further, in the case where the circulation side of the fan case 9 is made of an iron plate, since the entire surface is a metal surface, condensed water may remain below and rust may occur, resulting in water leakage.

Further, since the holes of the drum front plate 4 are burring holes 4a and the wire nets 22 are arranged between the heater covers 3, the wire nets 22 are pressed by the burring holes 4-a to be deformed and gaps are formed. There is a problem that the balance of the amount of intake air from the holes 4a is disturbed, performance is deteriorated, and the hook of clothes such as underwear is caught in the above-mentioned gap and the clothes are damaged.

Further, the motor 14 is fixed by sandwiching the flange portion 14a of the motor 14 from above and below the support plate 25 and the holding plate 26 via the cushioning member 23,
There is a problem that the support plate 25 or the holding plate 26 is displaced from the cushioning material 24 during the product transportation, resulting in a reduction of the vibration isolation effect and instability of the rotation conduction of the motor 14.

Further, the lead wire 21v of the temperature detecting portion 21
26, as shown in FIG.
Since it is derived from y, there is a problem that water droplets condensed on the temperature detecting portion 21 leak out from the hole 3y along the lead wire 21v.

The present invention is intended to solve the above problems, and a first object of the present invention is to smoothly rotate a double-blade fan and a drum to obtain stable drying.

A second object is to shorten the drying time by increasing the circulating air volume and reduce the wind noise of the cooling exhaust.

A third object is to improve the dehumidification amount by reducing the cooling wind noise and preventing the cooling air from leaking by a simple method.

A fourth object is to improve the drainage efficiency of the condensed water and increase the dehumidification amount.

A fifth object is to prevent the condensed water from leaking and increase the dehumidification amount.

A sixth object is to prevent water leakage by preventing rust on the circulation side fan case.

Also, maintaining the intake balance of the circulating air,
The seventh object is to improve the drying performance and prevent catching of clothes with hooks.

An eighth object is to stabilize the motor vibration and rotation. Further, a ninth object is to stabilize the detection performance of the temperature detecting section after heat exchange and prevent leakage from the lead wire section.

[0028]

In order to achieve the first object, the present invention provides a rotary drum rotatably arranged in an outer frame, and a rotary air outlet for axially supporting the rotary drum in the front. A substantially donut-shaped drum front plate having a heater, a heater serving as a heat source, a heater cover housing the heater and having an opening communicating with the air outlet of the drum front plate, and circulating air and cooling air And a double-sided fan having a blower function, a circulation side fan case and a cooling side fan case that house the double-sided fan, a shaft that pivotally supports the rotating drum and the double-sided fan, and an intake / exhaust port that covers the cooling side fan case. A fan contact plate having, wherein the circulation side fan case is formed of a metal plate having rigidity,
In addition, the shaft is fixed to a substantially central portion, the motor is fixed to a supporting plate, and a mounting portion for fixing to the outer frame four sides is extended outside the circulation side fan case.
Is used as a means for solving the problem.

In order to achieve the second object, the circulation side fan case has a higher vortex chamber height at the discharge port, and the cooling side fan case has a vortex chamber height lower than that at the cooling side discharge port. The second means for solving the problem is to gradually increase it.

In order to achieve the third object, the fan contact plate is formed of a thin iron plate, and recesses are provided near the exhaust port end face and near the cooling side vortex chamber tongue. As a means.

In order to achieve the fourth object, the vortex chamber of the circulation side fan case is formed such that the rotation direction of the double-blade fan is opposite to the flow direction of the condensed water due to heat exchange of the double-blade fan, The fourth problem solving means is to provide a rectifying rib by the back wind that guides the condensed water to the discharge port below the vortex chamber of the circulation side fan case.

In order to achieve the fifth object, a drainage lead-out member formed of a hydrophilic member is provided below the vortex chamber of the circulation side fan case, as a fifth means for solving the problem. There is.

In order to achieve the sixth object, the fifth problem solving means is to form a resin film on the lower portion of the circulation side fan case made of a metal plate.

Further, in order to achieve the seventh object, the blowout port of the drum front plate is a hole burred in the heater cover side direction, and the burring height h is h if the burring hole diameter is D. It is set as> D / 5, and the seventh problem solving means is to dispose a wire mesh which is drawn to the same height as the burring hole between the heater cover and the drum front plate.

In order to achieve the eighth object, a flange portion is formed on the motor, and a flexible cushioning material is fitted and fixed to the flange portion, and the cushioning material is supported and held from above and below. Hold it with a metal fitting to form a motor unit and form a concave or convex portion on the support plate or the holding metal fitting,
The eighth object is to form a concave portion or a convex portion or a flat surface portion on the cushioning material corresponding thereto and fit and fix the convex portion or the concave portion or the flat surface portion of the cushioning material to the concave portion or the convex portion of the support plate or the holding metal fitting. It is a solution.

Further, in order to achieve the ninth object, a control means for determining a drying time based on a temperature after heat exchange is provided, a temperature detecting section is provided in the heater cover, and a lead wire from the temperature detecting section is provided. A ninth problem solving means is to wire once below the hole under the heater cover, lead out from the hole to the outside of the circulation path, and seal the hole with a filler.

[0037]

According to the first means for solving the above problems, the present invention provides:
A circulation side fan case is formed from a rigid metal material,
And fix the motor to the circulation side fan case with the support plate,
By fixing to the four sides of the outer frame, the circulation side fan case is not deformed even when a load is applied to the rotary drum, the double-blade fan, and the fan case, and the motor part is also not deformed during transportation, Both blade fans and motor can be rotated smoothly.

Further, according to the second means for solving the problems, by increasing the height of the vortex chamber of the circulation side fan case, the amount of circulation air can be increased and the drying time can be shortened, and the cooling air is decompressed at the cooling side discharge port. The wind noise can be reduced by reducing the flow velocity.

According to the third means for solving the problems, the cooling air does not directly impinge on the end surface of the fan contact plate due to the concave portion, and the wind cutting phenomenon at the end surface of the fan contact plate is eliminated, and the cooling vortex chamber tongue portion is eliminated. The cooling air does not directly collide with the mating surface between the fan contact plate and the fan case in the vicinity, and the leakage of the cooling air can be prevented.

Further, by the fourth problem solving means, it is possible to efficiently drain the condensed water accumulated below the annular vortex chamber by the flow regulating ribs.

Further, according to the fifth means for solving problems, the drainage material having hydrophilicity can prevent the condensed water from leaking and increase the dehumidification amount.

Further, by the sixth means for solving the problems, it is possible to prevent the generation of rust in the lower portion of the circulation side fan case.

Further, according to the seventh means for solving the problems, the wire mesh is brought into close contact with the burring hole of the drum front plate without being deformed,
Intake balance of the circulating air from the intake hole is uniform, and clothes with hooks can be prevented from being caught.

Further, according to the eighth means for solving the problems, in the motor, since the convex or concave of the support plate and the concave or convex or the flat portion of the cushioning material are fitted to each other via the cushioning material, the cushioning material is displaced during transportation. It is possible to obtain a stable anti-vibration effect.

By means of the ninth means for solving problems, it is possible to prevent water droplets that have condensed on the lead wires of the temperature detecting portion after heat exchange from leaking out of the holes of the heater cover due to the capillary phenomenon.

[0046]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

First, as shown in FIGS. 1 to 3, the circulation side fan case 109 is formed of a rigid metal plate,
A shaft 10 that pivotally supports the rotary drum 5 and the double-blade fan 6 is fixed to a substantially central portion, and a motor 14 is fixed to a holding metal fitting 30. The motor 14 is attached to the outside of the circulation side fan case 109. Parts 109a, 109b, 109
c and 109d are extended, and the mounting portions 109a and 1d are provided.
09b, 109c, and 109d are fixed to the outer frame 1 with screws on four sides as shown in FIG.

Thus, the circulation side fan case 109 has four
By being fixed to the outer frame 1 by the sides, the loads of the drum 5, the double-blade fan 6 and the motor 14 can be firmly supported, and smooth rotation of the drum 5, the double-blade fan 6 and the motor 14 can be obtained.

Next, as shown in FIG. 4, the height of the vortex chamber of the discharge port portion 109o of the circulation side fan case 109 is increased (D> d), and the discharge port portion 13 of the cooling side fan case 130 is made.
At 0p, the greenhouse height is gradually increased from low state e to high E. With this configuration, it is possible to increase the circulating air volume and reduce the wind noise at the same time.

Further, as shown in FIG. 5, the fan contact plate 16
Exhaust outlet end faces 16s, 16t and cooling vortex chamber tongue portion 16w
The recesses 16S, 16T and 16W are formed in the vicinity of.
With this configuration, the cooling wind 7 flows without directly contacting the end faces 16s and 16t of the fan contact plate 16, so that wind noise can be prevented. Further, by forming the concave portion 16W near the cooling swirl chamber tongue portion 16w having a high flow velocity, it is possible to prevent the cooling air 7 from leaking from the mating surface q with the cooling side fan case 130.

Further, as shown in FIG. 6, in the vortex chamber 109e of the circulation side fan case 109, the rotational direction A of the double-blade fan 6 is formed in the opposite direction to the flow direction a of condensed water due to heat exchange of the double-blade fan 6. Below the circulation side vortex chamber 109e, a rectifying rib 31 that guides the wind of the double-blade fan 6 in the A direction is provided. The rectifying ribs 31 generate a flow of wind in the direction I in the portion I to guide condensed water to the discharge port 109z and improve drainage efficiency.

Further, as shown in FIG. 7, a substantially L-shaped drainage lead-out member 32 made of hydrophilic stainless steel is disposed below the vortex chamber 109e of the circulation side fan case 109. . By this drainage outlet member 32, the water accumulated below the vortex chamber 109e on the circulation side is guided to the discharge port 109z by a capillary phenomenon and flows out to the drainage port 13. With this configuration, there is no residual water in the machine, and the dehumidification performance and hygiene can be improved.

Further, as shown in FIG. 8, the resin film 10 is provided below the circulation side fan case 109 formed of a metal plate.
9f is formed. The resin film 109f prevents rust even if water remains below the circulation side fan case 109. Further, the effect of preventing residual water can be expected by setting the resin film 109f.

Further, as shown in FIGS. 9 and 10, if the intake hole 4a of the drum front plate 4 is a burring hole, the hole diameter is D, and the burring height is h, then h> D / 5 is set. There is. A wire mesh 33 having the same dimension as the burring height h is arranged between the drum front plate 4 and the heater cover 3.

With this structure, when h> D / 5, the hooks attached to the clothes dropped from the rotary drum 5 are not caught, and the wire nets 33 are in close contact with each other without being deformed by the burring holes 4a. The amount of air taken in through the intake holes 4a becomes uniform, and hot air with a stable temperature distribution can be obtained.

Further, as shown in FIGS. 11 to 13, a flange portion 14m is formed on the motor 14, and a hole portion of a cushioning material 34 formed of rubber is fitted and fixed to support the cushioning material 34 from above and below. The plate 35 is configured to be fixed in a sandwich shape by a holding metal fitting 36. The support plate 35 is formed with a convex portion 35h, and the cushioning member 34 is formed with a concave portion 34l into which the convex portion 35h is fitted and fixed. .

With this structure, it is possible to prevent the support plate 35 from slipping down from the cushioning material 34 during transportation. It should be noted that the same effect can be obtained even if the convex portion 35h of the support plate 35 is a concave portion and the concave portion 34l of the cushioning material 34 is convex or flat (since the flat surface is deformed according to the convex portion or the concave portion because of flexibility). can get.

Further, as shown in FIG. 14 and FIG.
Below the circulation duct 12 side of the heater cover 3, a temperature detecting portion 21 for detecting the temperature after heat exchange is fixed by a claw portion 3k, and is temporarily hooked on a pin 3g from a hole 3f through which a lead wire 21v of the temperature detecting portion 21 is inserted. After the lead wire 21v is led out of the circulation path, the hole 3f is made airtight with a sealant.

With this configuration, the water droplets condensed on the lead wire 21v flow downward and do not leak due to the water head difference H from the hole 3f, so that stable detection performance can be secured and water leakage can be prevented.

[0060]

As is apparent from the above embodiments, according to the present invention, the circulation side fan case is formed of a rigid metal plate, the shaft is fixed to the substantially central portion, and the motor is supported by the support plate. Since the fixing portion is fixed and extended to the outer side of the circulation side fan case to fix it to the four sides of the outer frame, smooth rotation of the drum and the two-blade fan and the motor can be obtained.
Performance can be stabilized.

Further, the circulation side fan case has the height of the vortex chamber at the discharge port increased, and the cooling side fan case has the height of the vortex chamber gradually increased from the low state toward the cooling side discharge port.
Due to the principle of the spreading tube, the pressure is reduced to reduce wind noise.

Further, since the fan contact plate is formed of a thin iron plate and the recesses are provided near the end face of the exhaust port and near the tongue of the cooling side vortex chamber, there is no wind noise from the end of the fan contact plate, and the fan contact plate is further Cooling air does not leak from the joint between the plate and the fan case, and cooling performance can be stabilized.

Further, the vortex chamber of the circulation side fan case is formed below the vortex chamber of the circulation side fan case by forming the rotation direction of the double-sided fan in a direction opposite to the flow direction of condensed water due to heat exchange of the both side fans. Since the straightening rib by the reverse wind for discharging the condensed water to the discharge port is provided, the straightening rib below the circulation side vortex chamber improves drainage efficiency and improves dehumidification performance.

Further, since the drainage derivation member formed of a hydrophilic member is provided below the vortex chamber of the circulation side fan case, residual water is eliminated by the drainage derivation member, and dehumidification performance is improved and mold of residual water is generated. It is possible to improve hygiene such as prevention.

Further, since the resin film is formed on the lower portion of the circulation side fan case made of a metal plate, rust can be prevented and quality can be improved.

Further, the air outlet of the front plate of the drum is a hole burred in the heater cover side direction, and the burring height h is h> D / 5, where burring hole diameter is D, and Since the wire mesh subjected to the same drawing process as the height of the burring hole is arranged between the front plates of the drum, it is possible to prevent scratches due to hooks of clothes,
Further, the uniform drying of the temperature distribution of the hot air enables safe drying.

Further, a flange portion is formed on the motor, a flexible cushioning material is fitted and fixed to the flange portion, and the cushioning material is held from above and below by a support plate and a holding metal member to constitute a motor unit. While forming a concave or convex portion on the support plate or the holding metal, and forming a concave or convex portion or a flat surface portion on the buffer material corresponding to this, the concave or convex of the support plate or the holding metal Since the convex portion, the concave portion, or the flat portion is fitted and fixed, the cushioning material does not move during transportation, and the vibration isolation performance can be maintained.

Further, a control means for determining the drying time based on the temperature after heat exchange is provided, a temperature detecting portion is provided in the heater cover, and the lead wire from the temperature detecting portion is once wired below the hole under the heater cover. After that, since it is led out of the circulation path through the hole and the hole is made airtight with a filler, water leakage from the hole can be prevented, stable detection performance can be secured, and water leakage can be prevented.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a clothes dryer according to an embodiment of the present invention.

FIG. 2 is a rear view showing a circulation side fan case of the clothes dryer.

FIG. 3 is a perspective view showing a drive unit of the clothes dryer.

[FIG. 4] (a) Rear view of the circulation side fan case of the clothes dryer (b) Schematic sectional view showing the height of the vortex chamber of the fan case of the clothes dryer

FIG. 5 (a) is a rear view of a fan contact plate of the clothes dryer (b) is a cross-sectional view showing an example of a recess of the fan contact plate, and (c) is a cross-sectional view of another example of a recess of the fan contact plate.

FIG. 6 is a rear view showing a circulation side fan case of the clothes dryer.

FIG. 7 is a schematic cross-sectional view showing the lower part of the vortex chamber of the circulation side fan case of the clothes dryer.

FIG. 8 is a perspective view of a circulation side fan case of the clothes dryer.

FIG. 9 is a schematic sectional view showing a heater cover and a drum front plate portion of the clothes dryer.

FIG. 10 is an exploded perspective view showing a heater cover and a drum front plate portion of the clothes dryer.

FIG. 11 is an exploded perspective view showing fixing of a motor of the clothes dryer.

FIG. 12 is an exploded perspective view of a mounting member of a motor of the clothes dryer.

FIG. 13 is a sectional view showing a mounting member of a motor of the clothes dryer.

FIG. 14 is a perspective view showing a temperature detection unit of a heater cover of the clothes dryer.

FIG. 15 is a cross-sectional view showing a detection unit of a heater cover of the clothes dryer.

FIG. 16 is a vertical sectional view of a conventional clothes dryer.

FIG. 17 is a rear perspective view of the clothes dryer.

FIG. 18 is a perspective view showing the order of assembling the clothes dryer.

FIG. 19 is a sectional view showing a vortex chamber of a fan case of the clothes dryer.

FIG. 20 is a rear view of the clothes dryer.

FIG. 21 is a cross-sectional view showing a vortex chamber of a circulation side fan case of the clothes dryer.

FIG. 22 is a perspective view of a circulation side fan case formed of an iron plate of the clothes dryer.

FIG. 23 is a schematic sectional view showing a heater cover and a drum front plate portion of the clothes dryer.

FIG. 24 is an exploded perspective view showing a heater cover and a drum front plate portion of the clothes dryer.

FIG. 25 is a sectional view showing fixing of a motor of the clothes dryer.

FIG. 26 (a) is a perspective view showing a temperature detecting section of a heater cover of the clothes dryer, and (b) is a sectional view showing a temperature detecting section of a heater cover of the clothes dryer.

[Explanation of symbols]

 1 Outer Frame 2 Heater 3 Heater Cover 5 Rotating Drum 6 Double-Wing Fan 10 Shaft 14 Motor 16 Fan Attenuating Plate 30 Supporting Plate 104 Drum Front Plate 109 Circulating Fan Case 109a Mounting Part 109b Mounting Part 109c Mounting Part 109d Mounting Part 130 Cooling Fan Case

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadashi Inuzuka 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Nobutaka Ogata 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (9)

[Claims] 1. A rotary drum rotatably disposed in an outer frame, a substantially donut-shaped drum front plate that axially supports the rotary drum and has a hot air outlet, a heater that serves as a heat source, and A heater cover that houses a heater and has an opening that communicates with the air outlet of the drum front plate, a double-sided fan that exchanges heat between circulating air and cooling air, and has a blowing function, and a circulation-side fan that houses the double-sided fan. The cooling side fan case includes a case, a cooling side fan case, a shaft that pivotally supports the rotating drum and the double-sided fan, and a fan contact plate having an intake / exhaust port that covers the cooling side fan case, and the circulation side fan case has rigidity. It is formed of a metal plate, and the shaft is fixed to a substantially central portion and the motor is fixed to a supporting plate, and the outer side of the circulation side fan case is fixed to the outer frame 4 sides. A clothes dryer with an extended mounting part. 2. The circulation side fan case has a height of the vortex chamber at the discharge port portion increased, and the cooling side fan case has a height of the vortex chamber gradually increased from the lower state toward the cooling side discharge port. Clothes dryer. 3. The clothes dryer according to claim 1, wherein the fan contact plate is formed of a thin iron plate, and recesses are provided near the end face of the exhaust port and near the tongue of the cooling side vortex chamber. 4. The vortex chamber of the circulation-side fan case is formed below the vortex chamber of the circulation-side fan case by forming a rotation direction of the double-blade fan in a direction opposite to a flow direction of condensed water by heat exchange of the double-blade fan. 2. The clothes dryer according to claim 1, wherein the clothes dryer is provided with a rectifying rib for backflowing the condensed water to the discharge port. 5. The clothes dryer according to claim 4, further comprising a drainage lead formed by a hydrophilic member below the vortex chamber of the circulation side fan case. 6. The clothes dryer according to claim 1, wherein a resin film is formed on a lower portion of a circulation side fan case formed of a metal plate. 7. The blowout port of the front plate of the drum is a hole burred in the heater cover side direction, and the burring height h is h> D / 5, where burring hole diameter is D.
2. A wire mesh which is drawn to the same height as the burring hole is arranged between the heater cover and the drum front plate.
The described clothes dryer. 8. A motor unit in which a flange portion is formed on a motor, a flexible cushioning material is fitted and fixed to the flange portion, and the cushioning material is held from above and below by a support plate and a holding metal fitting. A concave or convex portion is formed on the supporting plate or the holding metal fitting, and a concave portion or a convex portion or a flat surface portion is formed on the corresponding cushioning material, and a buffer material is formed on the concave or convex portion of the supporting plate or the holding metal fitting. The clothes dryer according to claim 1, wherein the convex, concave or flat portion is fitted and fixed. 9. A control means for determining a drying time according to a temperature after heat exchange, a temperature detecting portion is provided in the heater cover, and a lead wire from the temperature detecting portion is once wired below a hole in a lower portion of the heater cover. The clothes dryer according to claim 1, wherein the clothes are then led out of the circulation path through the holes and the holes are airtight with a filler.