JPH05131099A - Washing and drying machine - Google Patents

Abstract

PURPOSE:To prevent a heating device from coming out of order due to waterdrops by equipping a drying air passage, the heating device, a ventilation device and a control means to drive continuously or intermittently at least one of the heating device and the ventilation device during a power supply being thrown in. CONSTITUTION:A drying air passage 51 that communicates with the inside of a chamber 2 for washing and drying, a semiconductor heater 62 that acts as a heating device and is provided in a drying duct 60 at the upper end part of the drying air passage 51 and located at the upper part than a portion communicating with the chamber 2, a ventilation device 59 that is provided in the passage 51, and a microcomputer which acts as a drive means that drives continuously or intermittently at least one of the semiconductor heater 62 and the ventilation device 59, are equipped. Accordingly, waterdrops such as steam being attached to the semiconductor heater 62 can be prevented by driving continuously or intermittently at least one of the semiconductor heater 62 and the ventilation device 59.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type washing machine.

[0002]

2. Description of the Related Art As a conventional example, a dryer for introducing dry air heated by a temperature characteristic heater having a positive resistance into a drying chamber is disclosed in Japanese Utility Model Publication No. 3-21755 (D06F58 / 0).
4).

[0003]

When the drying system as in the prior art is applied to one in which washing and drying are carried out in a common tank, water vapor generated from the tank adheres to the heater, and
There is a problem that breaks down the data.

The present invention relates to improvement of a washer / dryer, and solves such a problem.

[0005]

The washer / dryer of the present invention comprises:
A drying air passage communicating with the washing / drying chamber, a heating device provided in the drying air passage and above a communicating portion with the washing / drying chamber, and a blowing device provided in the drying air passage. A control means for driving at least one of the heating device and the blower device continuously or intermittently while the power is turned on is provided.

The washing and drying machine of the present invention further comprises a drying air passage communicating with the washing and drying chamber, and a heating device provided in the drying air passage and above the communicating portion with the washing and drying chamber. , And a filter material provided directly above the heating device.

In the washing and drying machine of the present invention, the heating device is constructed by sandwiching a temperature characteristic heater element having a positive resistance between a pair of electrode plates, and the electrode plates are heat resistant and insulating. It is coated with a material having.

[0008]

In other words, by continuously or intermittently driving at least one of the heating device and the blowing device, it is possible to prevent water droplets such as water vapor from adhering to the heating device.

Further, by providing the filter material directly above the heating device, the heating device is protected against water drops falling from above.

Further, the terminal plate of the heater unit is heat-resistant and insulated-coated to make it less susceptible to water drops.

[0011]

Embodiments of the present invention will be described with reference to the drawings.

1 to 6, reference numeral 1 is a frame made of sheet metal, 2 is an outer tank made of synthetic resin in the shape of a horizontal shaft, and 3 is made of synthetic resin for supporting the lower portion of the frame 1. The bases 4, ... Are four sets of upper supports for elastically suspending and supporting the outer tub 2 from the upper portion of the frame 1.
.. is a lower support disposed between the lower part of the outer tub 2 and the base 3, and 6 is a tube integrally formed by projecting the upper part of the outer tub 2 upward in a rectangular tube shape. It is a body, and as a result, a clothes insertion port B7 is formed in the upper part of the outer tub 2.

Reference numeral 8 is a synthetic resin top plate fixed to the upper end of the frame 1, and a recess 9 is formed in the center thereof, and a clothing insertion port A10 is formed therein. 11
Is for opening and closing the clothes inlet A10.
The upper lid pivotally supported on the rear edge of the rear lid, 12 is an upper lid locking device for preventing the upper lid 11 from being opened, and 13 is a keyboard provided on the upper surface plate 8. A temporary stop key for temporarily stopping the program, an upper lid opening key for releasing the upper lid lock device 12, and the like are arranged.

Reference numeral 14 is a step portion formed by lowering the edge of the inlet A10 by one step, and 15 is the clothing inlet A.
It is a bellows-like rubber packing connected to the respective rims of 10 and the inlet B7, and has a tongue piece A16 hanging inward along the upper edge (on the side of the inlet A10).

Further, since the portion provided with the tongue piece A16 is formed thicker than the bellows portion, it is excellent in elasticity and durability and, as will be described later, has a good sealing effect with the upper lid. ..

Reference numeral 17 denotes a pressing frame having an L-shaped cross section, which is fixed to the step portion 14 by screws so as to press the upper end of the rubber packing 15, and has a tongue piece B18 hanging inwardly along the upper end thereof. ing. 19 is this holding frame 17
It is an annular foam rubber body fitted between the inner wall of the above and the side wall of the stepped portion 14.

Here, the structure of the upper lid 11 will be described with reference to FIGS.

The upper lid 11 has a multilayer structure of a synthetic resin upper plate 20, a stainless steel reinforcing frame 21, a synthetic resin reinforcing plate 22, a stainless plate 23, a water absorbing plate 24, and a synthetic resin lattice frame 25 in this order from the top. Yes, the reinforcing frame 21 is the reinforcing plate 22
In addition, the reinforcing plate 22 is the upper plate 20, the water absorbing plate 24 and the stainless plate 23 are the lattice portions of the lattice frame 25, and the lattice frame 25 is the reinforcing plate 2.
It is screwed to 2 respectively.

Further, the reinforcing plate 22 and the lattice frame 25 have wall surfaces provided around them and have a certain depth. Therefore,
Air layers 26 and 27 are formed between the upper plate 20 and the reinforcing plate 22, and between the reinforcing plate 22 and the lattice frame 25 (stainless plate 23). At the same time, when the upper lid 11 is closed, the lattice frame 2
The side portion of the lower end of 5 contacts the tongue piece A16 of the rubber packing 15.

The water absorbing plate 24 is specifically formed of a hydrophilic porous plastic material, and absorbs the water adhering to the back surface of the upper lid 11. Besides having water absorbency, this material can be colored and printed and can also meet food hygiene standards. Moreover, there is no deformation or strength reduction due to water absorption.

Reference numeral 28 is an annular projection integrally formed on the back surface of the reinforcing plate 22, and comes into contact with the upper surface of the foamed rubber body 19 when the upper lid 11 is closed.

The upper lid 11 constructed as described above is used in the outer tank 2
The water vapor released from the water is sucked in by the water absorbing plate 24, and when the lid is opened, water drops do not drop downward. In addition, the high temperature hot air from the outer tub 2 protects the resin material with the stainless steel plate 23 and reflects it to prevent the temperature efficiency in the outer tub 2 from being lowered. Also, the two air layers 26, 27
As a result, the heat insulation effect is good, and the countermeasure against dew condensation is more complete.

Further, when the upper lid 11 is closed, as described above, the lattice frame 25 contacts the tongue piece A16 and the annular rib 28 contacts the foamed rubber body 19, so that air is applied between both contact portions. Layer 30 is formed. Therefore, this air layer 30
Thus, it is possible to reduce the temperature difference between the inside and outside of the device and prevent the hot air inside the device from leaking and the tongue A16 from deteriorating.

Next, the pivotal structure of the upper lid 11 will be described with reference to FIGS.

Reference numeral 31 denotes a pivot shaft projecting laterally from the rear side of the upper lid 11, 32 a support arm projecting rearward from the rear end of the upper lid 11, and 33 a rear edge of the clothes inlet A10. It is a fixed pivot base and rotatably supports the pivot shaft 31. 34 is a leaf spring, one end of which is fixed together with the base 33 and the other end of which extends rearward, and the other end of which is curved upward as it extends rearward and the end of which is bent about 90 degrees. Has been. Reference numeral 35 is a slit provided in the central portion including the curved portion of the leaf spring 34 so as to be long open in the front-rear direction, and the support arm 32 of the upper lid 11 is loosely fitted in the slit 35.

The leaf spring 34 is provided with the slit 35.
It is fixed to the rear edge of the charging port A10 on both sides so as to sandwich.

The leaf spring 34 urges the rear end of the slit 35 so as to push the support arm 32 downward. Therefore, the upper lid 11 is the locking device 1
If 2 is not operating, open it about 30 degrees.

These pivotal support mechanisms are provided one on each side of the rear portion of the upper lid 11.

Next, the structure of the outer tub 2 will be described with reference to FIGS. 2 to 7 and 19 to 22.

Reference numeral 36 is an outer tank main body whose front side is open, and 37 is a stainless steel front plate that closes the front opening of the outer tank main body 36. A circular hole 38 is provided in the center and this hole 38 is formed. 7 inlets 3 to surround the lower half area
9 ... are formed. Reference numeral 40 denotes an overflow hole provided on the right side of the front plate 37, and 41 denotes a notch provided at the lower right corner of the front plate 37.

Reference numeral 42 is a front wall made of synthetic resin fixed to the front plate 37 with a screw, and has a U-shaped opening 43 at the center.
have. In the state where the front wall 42 is fixed to the front plate 37, the introduction ports 39 ... Are located in the opening region of the opening 43.

Reference numeral 44 is an aluminum hollow duct whose outer shape matches the shape of the opening 43 and which is formed in a substantially annular shape in order to provide a bearing housing 45 in the central portion, and which covers the opening 43. The bearing housing portion 45 faces the hole 38, and the hollow portion around the bearing housing portion 45 faces the introduction port 39. Reference numerals 46 and 47 denote a pair of electrode rods laterally supported near the upper end in the hollow duct 44. When excessive bubbles are generated in the outer tub 2, the electrode rods enter the hollow duct 44. As a result of this bubble, the electrode rods 46, 47 become conductive and are detected. Although the electrode rods 46 and 47 are parallel to each other, they are not located on the same horizontal plane but are vertically displaced.
Reference numeral 48 denotes a temperature detecting element disposed in the lower portion of the hollow duct 44 partially recessed rearward, and reference numeral 49 denotes a front bearing fixed in the bearing accommodating portion 45.

Reference numeral 50 denotes an overflow chamber which is formed on the right side of the opening 43 so as to communicate with the inside of the outer tank through the overflow hole 40.

Reference numeral 51 denotes a dry air duct which is formed in a reverse J shape so as to bulge along the left peripheral edge of the opening portion 43 in the front wall 42, and the lower end portion of the dry air passage is provided with the cutout portion 41 and the outer tank. It communicates with the inside. 52 to 54 are the dry air passages 5
Dehumidifying water passages A to C and 55, which are formed in the lower end portion of the No. 1 substantially parallel to the vertical direction, are dehumidifying water introducing portions formed on the upper surface of the lower end portion. Dehumidifying water is introduced from this introducing portion 55, but the dehumidifying water channels A to C52 to 54 first receive this in the uppermost water channel A52, and receive the water overflowing from this water channel A52 in the next water channel B53, The position and length are adjusted in advance so that the water overflowing from the water channel B53 can be received by the water channel C54 at the lowermost stage.

Further, the water channels A to C52 to 54 are inclined so as to rise in the direction of water flow, which lengthens the residence time of the water on the water channels and enhances the dehumidifying effect.

Reference numeral 56 is an air trap integrally formed in the lower portion of the front wall 42, and is connected to a water level sensor 57 fixed to the back surface of the upper plate 8 via a pressure hose 58.

59 is a blower whose suction side is connected to the upper end of the dry air passage 51, and 60 is this blower 59.
Is a drying duct that connects the discharge side of the above and the upper end of the hollow duct 44.

A filter device 61 and a semiconductor heater 62 having a positive resistance temperature characteristic are provided inside the drying duct 60.
Is provided, and the internal structure is shown in FIGS.
It will be explained based on.

The semiconductor heater 62 is as shown in FIG.
The four heater elements 63 to 66 are connected to a pair of terminal plates 67 and 68.
It is configured to be sandwiched by and housed in the case 69. The terminal plates 67 and 68 are connected to the heater element 63.
The parts other than the contact points with ~ 66 are coated with a heat-resistant material such as silicon or fluororubber, which is safe even if water drops adhere to the terminal plates 67, 68. I am able to secure it. Also, in order to prevent dew condensation on the heater 62, heater elements 63 to 66 are provided.
A heat insulating material may be attached in the vicinity of.

The semiconductor heater 62 is fixed directly above the upper surface of the hollow duct 44 so that the heater elements 63 to 66 thereof face the upper surface of the hollow duct 44. Reference numeral 69 is a wire mesh provided below the semiconductor heater 62, and is for protecting the heater 62 against bubbles rising from the hollow duct 44 at the time of excessive foaming. The wire net 69 may also be used as one of the electrode rods 46 and 47.

The filter device 61 includes the semiconductor heater.
The filter material 7 is provided directly above the filter 62 and is provided on the upper and lower sides.
It has 0 and 71. That is, 72 is the drying duct 6
The entrance and exit provided on the front face of 0, 73 and 74 are ducts 60
Is a slide groove provided in a vertical position on the side wall of the. The lower filter material 71 is made of a resin frame with a fine mesh, and extends from the entrance 72 to the lower slide groove 74.
Can be inserted and removed. The upper filter member 70 is made of a resin frame and has a coarse mesh, and can be inserted into and removed from the upper slide groove 73 through the port 72. Reference numeral 75 denotes a lid member formed integrally with the front edge of the upper filter material 70. When the upper filter material 70 is inserted into the upper slide groove 73 from the inlet / outlet 72, the lid member 75 covers the inlet / outlet 72. To do. Packing 7 is provided on the lid member 75.
6 is fixed, and seals the gap with the doorway 72 at the same time as the cover.

At the center of the rear edge of the upper filter material 70, there is provided a recess 77 formed by curving that portion forward, and at the center of the recess 77, an engagement projecting rearward is provided. A protrusion 78 is provided. Reference numeral 79 is a shield that covers the upper surface of the recess 77.

Reference numeral 80 denotes a push-push type engagement / disengagement mechanism provided on a wall of the drying duct 60 which faces the entrance / exit 72, and holds the engagement protrusion 78 when the upper filter material 70 is inserted. The upper filter material 70 is prevented from coming off. At this time, the shielding part 79 covers the upper side of the engaging / disengaging mechanism 80, and the engaging / disengaging mechanism 8 is covered with dust from above.
Prevent 0 from failing.

When it is desired to remove the upper filter material 70,
By temporarily pushing in the upper filter material 70, the engagement projection 78 is released from being held by the engagement / disengagement mechanism 80.

Now, in the frame 1, an opening window portion 81 is also provided at a portion facing the inlet / outlet 72, and the upper filter material 70 and the lower filter material 71 are taken out of the machine through the window portion 81. be able to. Reference numeral 82 denotes an opening / closing lid for opening / closing the window portion 81, the lower end portion of which is the window portion 8
It is pivoted at the lower edge of 1. Reference numeral 82a denotes a push-push type engagement / disengagement mechanism provided in the center of the upper edge of the window 81, and when the opening / closing lid 82 is closed, the opening / closing lid 82
The projection 83 at the center of the upper edge of the opening
Prevent the release of. Further, when it is desired to open the opening / closing lid 82, the upper portion of the opening / closing lid 82 is once pushed,
The holding of the opening / closing lid 82 by the engagement / disengagement mechanism 82a is released.
Reference numeral 84 denotes a switch for detecting the open / closed state of the open / close lid 82. When the switch 84 detects that the open / close lid 82 is open, the operation of the device is temporarily stopped.

Next, the internal structure of the outer tank body 36 is shown in FIG.
This will be described with reference to FIGS.

Reference numeral 85 denotes a drain port provided near the left end of the bottom of the outer tub body 36, 86 denotes a sheath heater arranged along the bottom of the outer tub body 36, and 87 denotes an outer tub body 36. Is a dehumidifying water channel D formed by vertically arranging a rib 87a in the front-rear direction along the corner portion at the right corner of the bottom portion. The bottom of the water channel D87 is similarly inclined because the bottom of the outer tub main body 36 is inclined so as to gradually rise from the front to the rear due to the draft at the time of molding. Further, the front portion of the water passage D87 communicates with the lower end of the dry air passage 51 via the cutout portion 41. Reference numeral 88 is a cover for covering the water passage D87, 89 is a temperature detecting element arranged at the bottom of the outer tub body 36, and 90 is a rear bearing fixed to the center of the rear wall of the outer tub body 36.

It should be noted that instead of inclining the entire bottom of the outer tank body, the bottom of only the water passage D87 may be inclined.
This can be achieved by recessing the water channel D87 in a concave shape instead of partitioning it by the rib 87a.

Reference numeral 91 is a drain hose for leading the drainage from the drainage port 85 out of the machine.
1 is connected to the bottom of the overflow chamber 50 via an overflow hose 92. Reference numeral 93 is a drainage electric valve for opening and closing the drainage port portion 85. As is well known, the valve is opened by winding the wire by the rotation force of the drainage motor 94 to cut off the rotation force of the motor. As a result, the valve returns to the closed state by the biasing of the spring (not shown).

Reference numeral 95 denotes a double-type water supply solenoid valve device fixed to the upper rear portion of the frame 1, and one water supply valve A9.
Reference numeral 6 is connected to a finishing agent charging device 97. In addition, the finishing agent charging device 97 is provided with the hose 98 and the cylindrical body 6
It is connected to the. That is, since the water from the water supply valve A96 is supplied into the outer tub 2 via the finishing agent feeding device 97, the finishing agent such as the softening agent stored in the finishing agent feeding device 97 is , And is put into the outer tub 2 together with water. Although not shown in the drawing, the finishing agent feeding device 97 has a water channel for bypassing the introduced finishing agent, and the water from the water supply valve A96 is switched by appropriately switching means. The outer tank 2 avoiding the finishing agent
It can also be supplied in.

The other water supply valve B99 is a water supply hose B100.
It is connected to the dehumidified water introduction part 55 through. The water from the introduction part 55 gently flows on the water channels A to D52 to 54, and reaches the drain port part 85 from the rear part of the water channel D54.

Reference numeral 101 is a stainless steel drum rotatably supported in the outer tank 2.
The structure of 01 will be described with reference to FIGS.

Reference numeral 102 denotes a body portion formed by bending one strip-shaped plate into a cylindrical shape and joining both end portions, and has a large number of through holes 103.

Reference numeral 104 denotes a circular front plate fixed to the front surface side of the body portion 102, and an annular raised portion 105 having a radius of about 1/2 is integrally formed. 106-10
Reference numeral 9 is an introduction opening provided at 90 degree intervals in a region surrounded by the raised portion 105, and 110 is the introduction opening 106 to 10.
The front support shaft is fixed to a cross-shaped fixed portion 111 that is divided by 9.

Reference numeral 112 denotes an annular iron balancer fixed by a screw to a region sandwiched between the outer peripheral edge of the front plate 104 and the raised portion 105, and the drum 101 will be described later.
Since a drum lid is attached to this, and the weight of this portion is heavy, in order to balance the weight, it is eccentric in the direction opposite to the place where the drum lid is provided.

Reference numeral 113 denotes a circular rear surface plate fixed to the rear surface side of the body portion 102, and has the same shape as the front surface plate 104. Therefore, even when it is desired to change the sliding direction of the slide type drum lid described later, the drum 10
It is only necessary to reverse 1 by 180 degrees. Reference numeral 114 denotes a rear support shaft fixed to the central portion of the rear plate 113. The balancer 112 is also eccentrically fixed to the rear plate 113 as well.

The screw holes for mounting the balancer 112 are processed after the front plate 104 and the rear plate 113 are formed. Therefore, the same mold can be used as the front and rear surfaces, and the mold does not have to be changed when the screw hole is modified.

Numerals 115 to 117 are openings formed at positions 120 degrees apart from the joint 118 in the body 102, and numerals 119 and 120 are foreign matter removal holes formed at positions further separated by 120 degrees from the openings 115 to 117. Exit, 12
Reference numeral 1 denotes a clothing inlet C provided between the joint 118 and the openings 115 to 117 and near the opening.

Denoted at 122 are three mounting portions provided on the circumferential sides of the openings 115 to 117, the foreign matter outlets 119 and 120, and the joint 118, respectively, and each of them is L.
It opens in a letter shape. 123 to 125 are the mounting portions 12
It is a synthetic resin baffle that can be attached to 2 ...
It is formed in a triangular shape in cross section with one end open. The interior of this baffle is hollow and the partition plate 12
.. are divided into three chambers 127 to 129. Denoted at 130 are substantially L-shaped locking pieces formed at the ends of the baffles 123 to 125, which are open in the longitudinal direction.

The baffle 123 is attached to the mounting portion 12
In order to attach the baffle 123 to the drum 101, the baffle 123 is first inserted into the drum 101 through the charging port C121, and the locking piece
.. is inserted into one side of the L-shape of each mounting portion 122, and in that state, it is slid along the other side. As a result, the baffle 123 is fixed to the drum 101, and in this state, the openings 115 to 117 are aligned with the corresponding chambers 127 to 129 of the baffle 123.

The other baffles 124 and 125 are similarly attached to the corresponding attaching portions 122, so that the foreign matter outlets 119 and 120 and the joint 118 are attached to the baffle 12.
It is hidden by 4,125. The reverse operation may be performed to remove the baffles 123 to 125.

Denoted by 131 ... are latching pieces fixed at positions sandwiching the openings 115 to 117, and the charging port C121.
The end on the side is bent into an L shape.

Reference numeral 132 denotes a stainless steel drum lid slidably supported along the peripheral surface of the drum 101 to open and close the input port C121, and has a brim portion 133 protruding along the closing direction end portion. With this collar 133
A locking hole 134 is provided at the center of the.

Reference numeral 135 is a pivot support fixed in the central opening 116, and 136 is the input port C of the support 135.
A locking lever whose one end is pivotally supported at the side end,
It has a triangular locking projection 137 at the center of the upper surface. 1
Reference numeral 38 denotes a helical spring that urges the locking lever-136 to rotate so as to stand upright. In the state in which the lever lever 136 stands upright, the lever-136 moves toward the outer tub 2.
The size is set so as to come into contact with the base portion 139 of the cylindrical portion 6 at.

Then, when the drum lid 132 is slid in the closing direction, the flange portion 133 causes the hook piece 131 to move.
..Driving under the bent end portion of ..
The locking hole 134 is locked to the locking projection 137 by rotating 36 against the bias of the spring 138 (state of FIG. 14). The engagement between the engagement hole 134 and the engagement protrusion 137 prevents the drum lid 132 from opening.

To open the drum lid 132,
The free end side of the lever-136 is pushed in, and the locking hole 134
The locking state between the locking projection 137 and the locking projection 137 is released. At this time, the lever-136 stands up by the urging force of the spring 138, is guided by the force and the triangular inclination of the locking projection 137, and the drum lid 132 is slightly opened by the weight of the lid itself. Slide in the direction. After that, slide it manually.

The drum 101 configured as described above is rotatably supported by the front bearing 49 and the rear bearing 90 by the support shafts 110 and 114 thereof. Further, the rear support shaft 90 is projected from the rear wall of the outer tub 2, and the drive pulley 140 is fixed thereto. Reference numeral 141 denotes a three-phase induction motor fixed to the outer bottom portion of the outer tub 2, and has a small pulley 142 and a belt 14 with respect to the drive pulley 140.
It is connected through 3. And, the induction motor 1
41 is driven by an inverter, which will be described later, and is rotated at a low speed during washing and drying and at a high speed during dehydration.

Reference numeral 144 is a drum lock device for fixing the drum 101 so as not to rotate, 145 is a reed switch attached to the outer tub 2, and 146 is close to the reed switch 145 in the drive pulley 140. Is a magnet disposed at a position where the reed switch 145
As the drive pulley 140 rotates.
It closes when 6 approaches, and it opens when it separates. 147
Is an abnormal vibration detection lever for detecting excessive rocking of the outer tub 2.

Next, the control mechanism of the washing / dehydrating / drying machine of this embodiment will be described with reference to FIGS. 29 and 30.

Reference numeral 148 denotes a micro computer (for example, LC6523 type manufactured by Sanyo Electric Co., Ltd., hereinafter referred to as a microcomputer) which is the center of control, and its configuration is C as well known.
PU149 (central processing)
unit), RAM150 (random acces)
s memory), ROM 151 (readonly)
memory), timer-152, system bus 15
3 and input / output devices 154 and 155.

The CPU 149 is composed of a control unit 156 and a calculation unit 157. The control unit 156 fetches and executes an instruction, and the calculation unit 157 outputs a control signal from the control unit 156 at the instruction execution stage. The arithmetic processing such as binary addition, logical operation, increase / decrease and comparison is performed on the data given from the input device or the memory. RAM1
Reference numeral 50 is for storing data relating to the device, and the ROM 151 is preliminarily loaded with means for operating the device, setting conditions for judgment, rules for processing various information, and the like. It is a thing.

The microcomputer 148 is provided with an input key circuit 158 composed of various operation key groups, the water level sensor 57, and an abnormal vibration detection micro switch 15.
9, the lead switch 146, the abnormal foaming detection circuit 16
0, the temperature detection circuit 161, and the signals from the switch 84 are input, and the microcomputer 148, based on these information, drives the rotation driving inverter circuit 16 of the motor 141.
2, the water supply solenoid valve A96, the water supply solenoid valve B99, the drain valve motor 94, the blower 59, the semiconductor heater 62, the seed heater 86, the buzzer ring circuit 16
3. Driving signals are sent to the display device 164 composed of various light emitting diode (LED) groups, the upper lid locking device 12, and the drum locking device 144, respectively. A driver circuit 165 drives each of the loads.

Since the inverter circuit 162 has a conventionally well-known structure, its explanation is omitted, but it converts a DC voltage into a pulse having a predetermined period and applies it to the motor 141. Since the rotation speed of the motor 141 is proportional to the frequency of the applied voltage, the microcomputer 148 uses this inverter.
By changing the frequency of the motor circuit 162, the rotation speed of the motor 141 can be freely changed.

Since the water level sensor-57 has a conventionally well-known structure, a detailed description thereof will be omitted, but in short,
In response to a pressure change in the air-trap 55 due to a water level change in the outer tub 2, a magnetic material is moved in and out of the coil to change the inductance of the coil, and the inductance change of the coil is changed. It is taken out as a change in oscillation frequency and input to the microcomputer 148.

The microcomputer 148 detects the water level in the tank continuously and in a wide range by discriminating the oscillation frequency of the pulse signal.

Thus, in the washing machine of this embodiment, under the control of the microcomputer 148, washing-intermediate dehydration-first rinsing-
The steps of intermediate dehydration-second rinse-final dehydration-drying are sequentially executed.

During the washing process, the motor 14
1 causes the drum 101 to move at a low speed (about 50 rp.
In step m), the laundry is repeatedly inverted, and the laundry in the drum 101 is scraped up by the baffle and dropped from the upper side to the lower side. Further, during this time, the washing water is heated by the heater 86 to improve the washing efficiency.

During the washing process, as shown in FIG.
The semiconductor heater 62 is driven. This is to prevent steam generated during washing from adhering to the vicinity of the heater 62 and causing a failure of the heater or the like.

For the same purpose, the blower 59 may be driven as indicated by the dotted line in FIG.

During the dewatering process, the motor 141 unidirectionally rotates the drum 101 at a high speed (about 800 rpm), and the laundry in the drum 101 is dewatered by centrifugal force.

During the drying process, the drying air is blown by the blower 59.
-Drying duct 60-Hollow duct 44-Inlet 39-Inside of drum 101-Front part of dehumidifying water passage D87-Water passage D87-Notch 41-Dry air passage 51-Blower 59-. At this time, since the introduction ports 39, ... Are projected toward the drum, the dry air is smoothly guided in the drum direction.

At the time of this drying, the water supply valve B99
Is driven, and the water flows in a film shape over the dehumidifying water channels A to D52 to 54, 87 and the outer tank bottom (drainage port 85), and the dry air after heat exchange touches this water film. , Cooled and dehumidified.

[0083]

In the dryer of the present invention, water droplets such as steam are unlikely to affect the heating device, so that the heating device can be prevented from malfunctioning due to water droplets.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a drum type washing machine adopting a dryer of the present invention.

FIG. 2 is a side sectional view of the same.

FIG. 3 is a vertical sectional view of the same.

FIG. 4 is a front sectional view showing the front structure of the outer tub.

FIG. 5 is a side sectional view showing a supporting state of the drum in the same manner.

FIG. 6 is a rear cross-sectional view showing the structure of the outer surface of the outer tank.

FIG. 7 is an exploded perspective view of the front surface side of the outer tank.

FIG. 8 is an exploded perspective view of an upper lid.

FIG. 9 is a plan view of the top plate when the upper lid is opened.

10 is an enlarged cross-sectional view of an upper lid portion in FIG.

FIG. 11 is an enlarged sectional view of the upper lid pivotal support portion.

FIG. 12 is a perspective view of a main part of the same.

FIG. 13 is an enlarged cross-sectional view of the engagement / disengagement mechanism section with the drum lid released.

FIG. 14 is an enlarged cross-sectional view of the engagement / disengagement mechanism portion with the drum lid locked.

FIG. 15 is a plan view of the drum lid with the drum lid locked.

FIG. 16 is a plan view of the drum lid with the drum lid released.

FIG. 17 is a perspective view of a drum.

FIG. 18 is an exploded perspective view of the same.

FIG. 19 is an enlarged cross-sectional view of the dehumidifying water channel portion in FIG.

FIG. 20 is an enlarged view of the dehumidifying water channel section at the bottom of the outer tank.

FIG. 21 is a plan view of the same.

FIG. 22 is an enlarged side sectional view of the same.

FIG. 23 is an exploded perspective view of a semiconductor heater.

FIG. 24 is a side sectional view of the drying duct.

FIG. 25 is a perspective view showing a mounted state of a filter.

FIG. 26 is a side sectional view showing a mounted state of a lower filter.

FIG. 27 is a side sectional view showing a mounted state of the upper filter.

FIG. 28 is a front sectional view of a drying duct and a hollow duct.

FIG. 29 is a block circuit diagram of a control mechanism.

FIG. 30 is a structural diagram of a microcomputer.

FIG. 31 is a flowchart showing an operation at the time of washing.

[Explanation of symbols]

 2 Outer Tank (Washing / Drying Room) 39 Inlet 44 Hollow Duct (Dry Air Duct) 51 Dry Air Duct 59 Air Blower (Blower) 60 Dry Duct (Dry Air Duct) 61 Filter Device 62 Semiconductor Heater (Heating Device) 63 ~ 66 Heater element 67, 68 Terminal plate (electrode plate) 148 Micro computer (control means)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshikazu Baba 2-18, Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Inventor Kenji Nakagawa 2-18, Keihan Hondori, Moriguchi City, Osaka Sanyo Denki (72) Inventor Shinji Yamaguchi 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Inventor Yoshiaki Aoki 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. ( 72) Inventor Koichi Tanaka, 2-18-18 Keihan Hondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd.

Claims (3)

[Claims] 1. A washing and drying operation is performed in a common washing / drying chamber, and a drying air passage communicating with the washing / drying chamber, and a communication portion in the drying air passage with the washing / drying chamber. A heating device provided above, a blower device provided in the drying air passage, while the power is on,
A washer / dryer, comprising: a controller that drives at least one of the heating device and the air blower continuously or intermittently. 2. A washing and drying operation is performed in a common washing / drying chamber, and a drying air passage communicating with the washing / drying chamber, and a communication portion in the drying air passage with the washing / drying chamber. A washer / dryer comprising a heating device provided above the heating device and a filter material provided directly above the heating device. 3. The heating device is constituted by sandwiching a temperature characteristic heater element having a positive resistance between a pair of electrode plates, and the electrode plates are coated with a material having heat resistance and insulation properties. The washer / dryer according to claim 1 or 2, wherein