JPH02104399A - Clothes drying machine - Google Patents

Abstract

PURPOSE:To damp vibration and noise generated in a motor and thereby accomplish low noise operation by forming a motor support table fixed inside of an external casing or a supporting metal part of the motor held thereon from a multi-layer metal plate with resin interposed between metal sheets. CONSTITUTION:Existing invention includes an external casing 1, rotary drum 2, blower 4, motor 8, heater case 7, and a heater 6, wherein a supporting metal part 19 of the motor 8 to drive the rotary drum 2 and blower 4 or a motor supporting table 20 is formed from a multi-layer metal plate consisting of metal sheets 20a, 20b and resin 20c and fixed to inside the mentioned external casing 1. Accordingly vibration generated when the motor 8 is operating is absorbed by the resin layer 20c of the motor supporting table 20 or resin layer 19a of the supporting metal part 19, to conductor the vibration to the external casing 1 upon damping to a great extent, so that sound generation from the vibration can be reduced greatly.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a clothes dryer for drying clothes, etc., and particularly to a vibration-proof structure for a drive section.

BACKGROUND OF THE INVENTION In recent years, rotating equipment for drying clothes and the like is often used at night, and therefore there is a strong demand for lower noise during operation.

Its configuration will be explained with reference to FIG. In the figure,
Reference numeral 1 denotes a box-shaped outer casing, and a rotary drum 2 formed of a sheet metal into a cylindrical shape is rotatably housed in the outer casing 1. A blower 4 is housed in a casing 3 provided behind the rotating drum 2. A heater case 77 housing a heater 6 is fixed to a front support plate 6 fixed to the outer casing 1, and the front support plate 5 supports the open end of the rotating drum 2. Motor 8 fixed to outer casing 1
includes a drum drive pulley 9 and a blower drive boob I.
J-9b is provided, and a drum base/l/)10a+blower base*)1ob is stretched between each 4 and the rotating drum 2 and the blower 4, so as to drive the rotating drum 2 and the blower 4 to rotate. ing.

Next, the operation will be explained. When the blower 4 rotates, the air inside the rotating drum 2 is drawn into the casing 3 by centrifugal blowing action.
The outside air is drawn into the heater case 7 and exhausted.
A flow of drying air is created which flows into the rotary drum 2 as warm air from the inlet of the front support plate 6 through the heater e housed in the rotary drum 2.

The clothes are dried by exchanging heat with the clothes being stirred by the rotation of the rotary drum 2 and the drying air which has become the hot air.

Problems to be Solved by the Invention However, in the conventional configuration, the electric motor is supported by a motor support stand fixed to the outer casing 1, so vibrations during operation of the motor propagate to the outer casing 1. The problem was that the casing 1 could not completely insulate sound, making it impossible to reduce noise.

Another option is to support the support metal part with a vibration isolator, but it is well known that reducing the hardness of the vibration isolator improves the damping effect. Deformation and changes in the distance between the shafts, which is an important factor in belt drive, occurred, making it impossible to use the belt for practical purposes.

In view of the above problems, it is an object of the present invention to reduce the noise of equipment.

Means for Solving the Problems In order to achieve the above object, the first technical means of the present invention is to replace the motor support fixed in the outer cylinder with a multilayer metal plate with a resin material interposed between the metal plates. It is composed of

A second technical means is that the support metal part of the electric motor held on the motor support stand is constructed from a multilayer metal plate.

According to the first technical means of operation, the vibrations and sounds generated by the operation of the electric motor are attenuated by the resin material of the multilayer metal plate that constitutes the motor support, so that the vibrations and sounds generated by the operation of the electric motor are attenuated by the resin material of the multilayer metal plate that constitutes the electric motor support. Vibration propagation is extremely reduced and noise can be reduced.

According to the second technical means, the support part of the electric motor is constructed of multiple metal plates with a resin material interposed between the metal plates, so that the metal material damps vibrations, and the motor support part and Vibration propagation to the outer casing can be minimized and noise reduction can be achieved.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.

1 and 2, an outer casing 11 a rotating drum 2. Blower 4. Electric motor 8° heater case 77. Since the main parts such as the heater 6 are the same as in the conventional example, the same parts are given the same reference numerals and the explanation thereof will be omitted.

The feature of the wooden embodiment lies in the drive part, in which the support part 19 of the electric motor 8 or the motor support stand 20 is connected to metal plates 20a and 20b.
, a multilayer metal plate made of resin 200, and fixed within the outer casing 1. The inner periphery of the front opening of the rotating drum 2 is slidably supported by a front support plate 6 attached to the front surface of the outer casing 1 via a sealing material 11. Further, the rear part of the rotating drum 2 is pivotally supported by a shaft 13 of a beam 12 fixed to the rear part of the outer casing 1, and the rotational force of an electric motor 80 attached to the upper back surface of the outer casing 1 is transmitted through a bell l-10a. The rotation drum 2 is configured to rotate horizontally.

In addition, a discharge port 15 is formed in the front support plate 6, and outside air is sucked in in the direction of the arrow through a filter 16 attached to the lower front of the outer casing 1, heated by the heater θ, and turned into hot air. , and is discharged from the discharge port 15 into the rotating drum. Then, this hot air removes moisture from the clothes (not shown) in the rotating drum 2, is sucked by the blower 4 in the fan casing 3 provided behind the rotating drum 2, and is discharged to the outside of the machine through the exhaust hole 18. Ru.

On the other hand, as shown in FIG. 2, the electric motor 8 has a shaft 24 having a stator 22 equipped with a winding 21 and a rotor 23, which is supported by a bearing 26 provided in a support metal part 19. Then, a vibration isolating material 26 made of insulating rubber or the like is engaged with the support metal part 19, this vibration isolating material 26 is fitted to the motor support 2o, and the motor support 20 is attached to the outer frame 1. is fixed. Therefore, the vibrations caused by the operation of the electric motor 8 are absorbed by the resin layer 20c of the electric motor support base 20 made of a multilayer metal plate.
Since the vibrations are absorbed and propagated to the outer casing 1 with greatly attenuated vibrations, the generation of noise due to the vibrations can be significantly reduced.

In addition, the resin layer 19a of the support metal part 19 made of a multilayer metal plate absorbs vibrations caused by the operation of the electric motor 8, and the generation of noise due to the vibrations can be significantly reduced.

Effects of the Invention As described above, according to the Kensui invention, since the rigid body that supports the motor is composed of a multilayer metal plate with a resin material in between, vibrations generated during operation of the motor can be absorbed by the resin layer of the multilayer metal plate. Since the vibration can be attenuated by the vibration, the vibration does not propagate to the outer casing, making it possible to reduce noise. In addition, since the vibration isolation structure can be put to practical use with a simple configuration, the space available for rent can be greatly expanded at low cost. When used in the support part of an electric motor, the resin layer of the multilayer metal plate can improve electrical insulation and safety.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a clothes dryer according to an embodiment of the present invention, and FIG. FIG. 3 is a longitudinal sectional view of a conventional clothes dryer. 1...Outer casing, 2...Rotating drum, 8
...Electric motor, 19... Support metal fittings, 19
a, 20c...resin, 2o...motor support stand.

Claims (2)

[Claims] (1) an outer frame, a rotating drum rotatably provided within the outer frame, a blower that circulates air within the rotating drum, and a heating means that heats the air flowing into the rotating drum;
A clothes dryer comprising a rotating drum and a drive unit that drives a blower, and in which the motor of the drive unit is supported by a motor support stand made of a multilayer metal plate with a resin material interposed between metal plates fixed to an outer frame. (2) The clothes dryer according to claim 1, wherein a multilayer metal plate with a resin material interposed between the metal plates is used for the support metal part of the motor held by the motor support stand.