JP2010063750A - Washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing machine further improving waterproof to a control unit and making repair and inspection easy. <P>SOLUTION: The washing machine includes a control substrate 4, a ship-shaped case 5 into which the control substrate 4 is loaded, and the control unit 3 covering the control substrate 4 from the upper face of the same and constituted of a cover 6 loaded onto the ship-shaped case 5, wherein the control substrate is fixed to the bottom face of the ship-shaped case 5 by being held by the pawl 5d for hanging the control substrate arranged in the ship-shaped case 5 and by filling a potting material 5a for preventing moisture such as a polyurethane resin, the upper side thereof is covered with a cover body 6, and the control unit 3 is arranged upside down such that the cover body 6 comes to the lower face on the upper portion of the washing case body 1, so that washing can be safely carried out without splashing the control unit 3 with leaked water even though the water leaks in the inside or outside of the washing machine. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a washing machine that performs a series of steps of washing, rinsing, and dewatering.

  FIG. 4 is a sectional view of a conventional washing machine of this type, and the configuration will be described below with reference to the drawings. As shown in FIG. 4, this type of conventional washing machine includes a washing machine housing 32, a water tank 33 that is arranged in the washing machine housing 32 and includes a water tank body 33 a and a water tank lid 33 b, and a water tank 33. A rotating drum 35 that is rotatably accommodated in the inside and is formed in a bottomed cylindrical shape and whose rotation axis is inclined downward from the opening end side toward the bottom surface side, and the rotating drum of the water tank lid 33b The laundry entrance / exit 42 provided at a position corresponding to the opening end of 35, a motor 34 for rotationally driving the rotary drum 35, water supply means 36 for supplying water into the water tank 33, and water in the water tank 33 A drainage means 43 for draining water, a control device 38 for controlling the operation of the motor 34, the water supply means 36, the drainage means 43, etc., a power cord 37 for supplying commercial power to the control device 38, and the front surface of the washing machine housing 32. Formed on the side An opening 40 provided on the inclined surface, a door body 41 provided in the opening 40 so as to be openable and closable, and a seal member 39 connecting the opening 40 and the laundry doorway 42, and a control device 38. A cord connecting portion 37 a with the power cord 37 is located on the lower front side of the water tank 33 in the washing machine housing 32, and a joint 44 between the water tank lid 33 b and the water tank body 33 a and a joint between the laundry entrance 42 and the seal member 39. It is characterized by being located on the front side of the portion 45.

With this structure, even if water leaks from the joint 44 between the water tank main body 33a and the water tank lid 33b and the joint 45 between the laundry entrance / exit 42 and the seal member 39, the cords of the control device 38 and the power cord 37 are used. Since the connecting portion 37a is located on the front side of the joint portion 44 of the water tank main body 33a and the water tank lid 33b and the joint portion 45 of the laundry entrance / exit 42 and the seal member 39, the water that leaks and drops on the bottom surface of the water tank. This is not directly applied (see, for example, Patent Document 1).
JP 2006-68055 A

  However, in the washing machine realized by such a conventional technique, if the clothes are biased while the rotating drum is rotating, the rotating drum exerts an eccentric force, so that the water tank may swing greatly up and down or left and right. . At this time, if water leaks from the joint between the water tank main body and the water tank lid or the joint between the laundry doorway and the seal member, the leaked water may scatter as the water tank shakes. In that case, it is fully conceivable that water is applied to the control device.

  In consideration of inspection, repair, and parts replacement, the control device is placed on the front side of the lower part of the product, so the power cords and lead wires from the electronic parts must be concentrated in that part. However, there is a problem that their length becomes longer and costs increase.

  The present invention solves the above-mentioned problem, and arranges the control device at the upper part of the washing machine casing and makes the control device have a great effect of preventing water intrusion, so that even if water leaks during washing, Since the control device does not have to worry about water, the object is to provide a washing machine that can wash safely.

In order to solve the above-described conventional problems, a washing machine of the present invention includes a rotary drum having a clothes insertion port at the front and having a rotation center shaft inclined horizontally or from the front toward the rear, and the rotation center shaft. A water tub having a water tank opening on a substantially extended line of the housing, and a housing for rotatably accommodating the rotating drum, and a laundry having a housing opening on a substantially extended line of the central axis of rotation for slidably housing the water tank. A machine case, a top board that covers the upper part of the washing machine case and is detachably fixed, a door body that is attached to the washing machine case and covers the case opening so as to be openable and closable, and washing and rinsing A control board for controlling a series of operations of dehydration, a boat-like case with an open upper surface that houses the control board, a flame-retardant or non-flammable that covers the control board from the top and is attached to the boat-like case Consists of a cover body made of material The control board is fixed to the bottom surface of the boat-like case by holding the control board provided on the boat-like case with a claw for hooking the control board and filling a moisture-proof potting material such as urethane resin. In addition, the upper part is covered with the cover body, and the control device is arranged so as to be turned upside down on the upper part of the washing machine casing so that the cover body comes to the lower surface.

  In the washing machine of the present invention, even if a water leak occurs during washing, the control device is arranged at the upper part of the washing machine casing and has a large effect of preventing water intrusion, so that the leaked water is not applied. Can be washed safely. Moreover, since the upper surface of the control device is covered with a top board and the cover body in the control device is inverted so that it comes to the lower surface, water does not enter the control device. Further, since the control device is arranged at the upper part of the washing machine, the work can be easily performed by simply removing the top board at the time of inspection, repair, and part replacement.

  A first invention has a rotary drum having a clothes insertion port in the front and having a rotation center axis inclined horizontally or from the front to the rear and a water tank opening on a substantially extension line of the rotation center axis. A water tub that rotatably accommodates the rotating drum; a washing machine housing that has a housing opening on a substantially extended line of the rotation center axis; A top board that covers the top and is detachably fixed, a door body that is attached to the washing machine casing and covers the opening of the casing so as to be openable and closable, and a control board that controls a series of operations of washing, rinsing, and dewatering. A control device comprising a boat-like case with an open upper surface that houses the control board, and a cover made of a flame-retardant or non-flammable material that covers the control board from the upper surface and is attached to the boat-like case And the control board It is fixed to the bottom surface of the boat-like case by holding with a claw for hooking the control board provided in the boat-like case and filling with a moisture-proof potting material such as urethane resin, and the upper part is covered with the cover body. Since the control device is arranged so that the cover body is turned upside down on the upper part of the washing machine casing so that the water leaks to the control device, It is possible to perform washing safely without taking up. Moreover, since the upper surface of the control device is covered with a top board and the cover body in the control device is inverted so that it comes to the lower surface, water does not enter the control device. Further, since the control device is arranged at the upper part of the washing machine, the work can be easily performed by simply removing the top board at the time of inspection, repair, and part replacement.

  According to a second aspect of the present invention, in particular, the control device of the first aspect is configured such that the cover body enters the inside of the boat-like case, and the cover body and the boat-like case are fixed by screws. In the home where the machine is installed outdoors, even if rain falls on the washing machine and water enters the inside from the joint surface between the top board and the washing machine housing and reaches the side of the control device, the cover body is boat-shaped Since it has entered the inside of the case, it can flow from the side surface of the boat-like case to the side surface of the cover body and water can be prevented from entering the control device.

According to a third aspect of the invention, in particular, the control device according to the first or second aspect of the invention is configured such that an arm is provided on at least one side of the side surface of the boat-like case, and installation on the washing machine casing is performed by the arm. As a result, even if water enters the inside from the joint surface between the top board and the washing machine casing and water flows from the arm to the control device, it reaches the control device side through the arm, Since it flows so as to be transmitted from the side surface of the case to the side surface of the cover body, it is possible to prevent water from entering the control device.

  According to a fourth aspect of the present invention, in particular, the control device according to any one of the first to third aspects includes a power cord for supplying commercial power to the control device and a lead wire for driving an electronic component provided in the washing machine. By providing at least one opening for insertion into the control device, the length of each line can be minimized, and unnecessary cost increase can be avoided.

(Embodiment 1)
The washing machine in the 1st Embodiment of this invention is demonstrated using FIGS. 1-3. 1 is a cross-sectional view of the washing machine in the present embodiment, FIG. 2 is a plan view of the washing machine in the present embodiment, and FIG. 3 is a cross-sectional view of the control device shown in FIG. In FIG. 1, a rotating drum 8 having a circular clothing insertion port 13 in the front and a water tub 2 that rotatably stores the rotating drum 8 are disposed in the washing machine casing 1. A drum-type washing machine for putting clothes in and out of the rotary drum 8 from the door body 11 provided on the front is constituted.

  The rotating drum 8 has a bottomed cylindrical opening side on the front side of the washing machine casing 1 and a bottom surface side on the back side of the washing machine casing 1, and its rotation axis is from the opening side to the bottom side. It arrange | positions in the water tank 2 so that it may become a downward slope toward, and the rotational drive shaft 9 is pivotally supported by the bearing 10 provided in the back surface of the water tank 2. As shown in FIG. By a belt drive structure in which a drive belt 17 is installed between a drive pulley 16a attached to a rotary drive shaft of a drum drive motor 7 attached to the lower surface of the water tank 2 and a driven pulley 16b on the rotary drive shaft 9 side, The rotary drum 8 is rotationally driven by the drum drive motor 7.

  Washing water is supplied to the inside of the water tub 2 from water supply means (not shown) arranged above the inside of the washing machine casing 1, and a large number of through holes 18 are formed in the peripheral surface of the rotating drum 8, so It is comprised so that the circulation of water can be carried out between them, and it is comprised so that the effect | action of the beating washing which lifts clothing upward by rotation of the rotating drum 8, and may fall from upper direction is made | formed.

  In the present embodiment, the rotation axis of the rotary drum 8 is inclined downward from the opening side toward the bottom surface side, but may be horizontal.

  A control device 3 that controls a series of processes such as washing, rinsing, and dewatering is disposed in the upper part of the washing machine casing 1.

  2 and 3, the configuration and mounting configuration of the control device 3 will be described. The control device 3 controls a series of processes such as washing, rinsing, dehydration, etc., and includes a control board 4 incorporating a microcomputer for controlling the drum drive motor 7 and the like, a boat-like case 5 on which the control board 4 is mounted, The control board 4 is configured from a cover body 6 that covers the control board 4 from above and is attached to the boat-like case 5.

  The control board 4 is temporarily fixed by being placed on a plurality of rib bodies 5c provided on the bottom surface of the boat-like case 5 and hooked on the claws 5d. After temporary fixing, the boat-like case 5 is permanently fixed by filling a moisture-proof potting material 5a such as urethane resin. When the control board 4 is installed in the boat-like case, a hole 4a having a predetermined size is opened at a predetermined position of the control board 4, and a pin 5e is provided on the bottom surface at a position corresponding to the position of the hole 4a on the boat-like case 5 side. By providing, the incorrect attachment prevention of the control board 4 to the boat-like case 5 is performed.

The upper side surface of the boat-like case 5 is provided with a circumferential groove 5f, and an end portion of the outer peripheral side surface of the cover body 6 made of a flame-retardant or non-flammable material is inserted therein. Thereafter, the boss 5g provided on the side surface of the boat-like case 5 and the boss 6a provided on the side surface of the cover body are fixed with screws. Thereby, the cover body 6 is configured to enter the inside of the boat-like case 5. Two adjacent side surfaces of the boat-like case 5 are provided with the arms 5b protruding outward, and triangular ribs 5h are provided at both ends of the arm 5b from the seating surface of the arms 5b toward the side of the boat-like case 5. Provided.

  The controller 3 is attached to the washing machine casing 1 in such a manner that the boat-like case 5 is not directly installed on the washing machine casing 1 in a state where the cover body 6 is turned upside down so as to come to the lower surface. The arm 5b is placed on the rear part and the right side part of the washing machine casing 1 so that the control device 3 does not directly contact the washing machine casing 1.

  Above the control device 3, the top board 12 is attached to the washing machine housing 1 with screws so as to cover the upper portion of the control device 3 and to be a plane having the same height as the upper surface of the washing machine housing 1. Thus, the upper surface of the washing machine casing 1 is covered. Inspection, repair, and parts replacement of the control device 3 are performed by removing the top board 12.

  The control device 3 has a lead wire 14 for driving electronic components such as a drum drive motor 7 provided in the washing machine and a lead wire for inserting a power cord 15 for supplying commercial power to the control device 3. The opening 14a and the power cord opening 15a are provided at positions where the length of each line is the shortest.

  About the washing machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. When washing and dehydration are performed, the door 11 is opened and clothes are put into the rotary drum 8, a predetermined amount of water is supplied into the water tank 2 by the water supply means, and the drum drive motor 7 is driven to drive the rotary drum 8. Rotating, washing and dehydration are performed.

  However, if clothing is biased while the rotating drum 8 is rotating, the rotating drum 8 exerts an eccentric force, so that the water tank 2 may swing greatly up and down and left and right. At this time, since partial stress is applied to the water tank 2, there is a possibility that water leakage may occur from the joint between the water tank 2 and the door body 11. Furthermore, water leakage may occur due to a failure of the water supply means. However, since the control device 3 is disposed on the upper part of the washing machine casing 1, water is not directly applied thereto.

  In addition, in a home where the washing machine is installed outdoors, there is a possibility that water may enter from the joint between the top board 12 and the washing machine casing 1 when it rains. However, by placing the two arms 5b on the rear part and the right side part of the washing machine casing 1, the control device 3 does not directly contact the washing machine casing 1, and further passes through the triangular rib 5h provided on the arm 5b. Since water is caused to flow on the side surface of the control device 3, water does not reach the upper surface of the control device 3.

  Even if water reaches the upper surface of the control device 3, the control device 3 is arranged upside down so that the cover body 6 comes to the lower surface at the top of the washing machine casing 1. Water does not enter.

  Further, the water that has reached the side surface of the boat-like case 5 through the triangular rib 5h is fixed by inserting the cover body 6 into the inside of the boat-like case 5, and therefore the side surface of the cover body 6 from the side surface of the boat-like case 5 The water flows along the path, and the water does not enter the control device 3.

  For this reason, there is no fear of equipment failure or accident due to water leakage, and it is not necessary to provide an excessive waterproof structure. Therefore, the control device 3 can be removed by simply removing the top board 12 at the time of inspection, repair, or part replacement. It is possible to configure a washing machine that can easily perform the work inside.

  Further, since the lead wire opening 14a and the power cord opening 15a are provided in the control device 3 at the position where the lead wire 14 and the power cord 15 are the shortest, it is possible to avoid a wasteful cost increase.

  As described above, the washing machine according to the present invention can further improve the waterproofness of the control device and the power cord and facilitate repair and inspection. It is useful as a machine.

Sectional drawing of the washing machine in Embodiment 1 of this invention Top view of the washing machine AA sectional view of the control device shown in FIG. 2 of the washing machine Cross section of a conventional washing machine

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Washing machine housing | casing 2 Water tank 3 Control apparatus 4 Control board 4a Hole 5 Boat-like case 5a Potting material 5b Arm 5c Rib body 5d Claw 5e Pin 5f Groove 5g Boss 5h Triangular rib 6 Cover body 6a Boss 7 Drum drive motor 8 Rotating drum DESCRIPTION OF SYMBOLS 9 Rotation drive shaft 10 Bearing 11 Door body 12 Top board 13 Clothing inlet 14 Lead wire 14a Lead wire opening 15 Power cord 15a Power cord opening 16a Drive pulley 16b Driven pulley 17 Drive belt 18 Through-hole

Claims (4)

A rotary drum having a clothes insertion port in the front and having a rotation center shaft inclined horizontally or downward from the front to the rear, and a water tank opening on a substantially extension line of the rotation center shaft, and the rotation drum can be freely rotated. A washing tub that has a housing opening on a substantially extended line of the rotation center shaft, and that slidably accommodates the water tub, and covers the top of the washing machine housing and is removable A top board fixed to the washing machine, a door attached to the washing machine casing and covering the opening of the casing so as to be openable and closable, a control board for controlling a series of operations of washing, rinsing and dehydration, and the control board And a control device comprising a cover body made of a flame-retardant or non-flammable material that covers the control board from the upper surface and is attached to the boat-like case. The substrate is the boat The control board provided on the bottom is fixed to the bottom of the boat-like case by holding with a claw for hooking the control board and filling with moisture-proof potting material such as urethane resin, and the upper part is covered with the cover body, and the control The apparatus is a washing machine configured to be arranged upside down on the upper part of the washing machine casing so that the cover body comes to the lower surface. The washing machine according to claim 1, wherein the control device is configured such that the cover body enters the inside of the boat-like case, and the cover body and the boat-like case are fixed by screws. The washing machine according to claim 1 or 2, wherein the control device is provided with an arm on at least one side of the side surface of the boat-like case and is installed on the washing machine casing by the arm. The control device is provided with at least one opening for inserting a power cord for supplying commercial power to the control device and a lead wire for driving an electronic component provided in the washing machine into the control device. Item 4. The washing machine according to any one of Items 1 to 3.