JP5440467B2 - Drum type washer / dryer - Google Patents

Description

  The present invention relates to a drum-type washing / drying machine for washing, rinsing, dehydrating and drying in a rotating drum arranged to be rotatable about a substantially horizontal or inclined rotation axis.

  Conventionally, this type of drum-type washing and drying machine includes a heat pump device as a drying method, and uses a heat pump drying method to dry laundry (for example, see Patent Document 1). In addition, in order to carry out from washing to drying, control devices for controlling various electric components and processes are also increased in size, and these heat pump devices are arranged in a space in the lower part of the housing (see, for example, Patent Document 2). Various arrangements have been made for the arrangement of the control devices.

  FIG. 4 is an explanatory diagram showing a schematic configuration of a conventional heat pump drying type drum-type washing and drying machine described in Patent Document 1. As shown in FIG.

  In FIG. 4, the heat pump device 130 is disposed in a lower space in the housing 100 in order to make it less susceptible to the vibration of the water tank 102. The heat pump device 130 is connected to a water tank 102 in which a drum is housed by a circulation air passage 108. Further, the circulation air passage 108 is provided with a filter unit 140 and a blower 109 that collect lint and the like generated in the laundry drying process. Then, the drying air that has passed through the drum 103 is discharged from above the water tank 102, passes through the filter unit 140, and then travels toward the blower 109. The drying air blown by the blower 109 is dehumidified and heated by the heat exchanger of the heat pump device 130 and flows into the drum again. The heat pump device 130 can be pulled backward from the housing 100 for repair maintenance and the like.

  FIG. 5 shows a longitudinal sectional view of a conventional drum-type washing and drying machine described in Patent Document 2. As shown in FIG.

  In FIG. 5, the control device 20 leaks water from the sealing member 13 between the laundry doorway 11 and the opening 9 and water leakage from the water tank main body 3 a and the water tank lid 3 b in the lower front inside of the washing machine housing 2. It is arranged on the front side of the position where the water drops, preventing water leakage.

  Further, a detachable front case 22 is provided at the lower front portion of the washing machine case 2 so that the control device 20 can be pulled out of the washing machine during repair maintenance or the like.

JP 2006-110394 A JP 2006-068055 A

  However, in the configuration of Patent Document 1, it is necessary to move the washing machine from the installed state to the front side to secure a space on the rear side of the washing machine for repair maintenance of the heat pump device. Since the environment where the machine is placed is small, there is a problem that it is difficult to secure a space for repair and maintenance.

  Further, in the configuration of Patent Document 2, it is not necessary to move the washing machine for repair maintenance of the control device. However, in order to remove the front casing portion at the lower front, the repair operator needs to bend down and work. There was a problem of giving physical load to repair workers.

  The present invention solves the above-mentioned conventional problems, and improves the repair and maintenance of the control device and heat pump device arranged on the upper part of the product, and ensures sufficient strength against the load from above. With the goal.

  In order to solve the above-described conventional problems, a drum-type washing and drying machine according to the present invention includes a housing, a top plate disposed on the upper surface of the housing, and a water tank that is supported in a vibration-proof manner in the housing. A rotary drum formed in a bottomed cylindrical shape and contained in the water tub, a motor for rotationally driving the rotary drum, and a heat pump device disposed inside the top plate for drying the laundry in the rotary drum And a control device that is disposed inside the top plate and controls the motor and the like to control each process such as washing, rinsing, dehydration, and drying, and the control device has a substantially rectangular shape with a bottom. A protective case in which a case groove is formed in the upper part of the wall; a control device body provided in the protective case; a lower protective cover that covers the lower part of the protective case; and a plurality of steps on the top surface part that covers the upper part of the protective case. With an upper protective cover with a convex cover The left and right cover end surface portions of the upper protective cover are inserted into the case groove portion of the protective case, and the upper surface of the upper protective cover and the rear surface portion of the top plate are in contact with or close to each other. is there. As a result, repair maintenance can be facilitated, and sufficient strength can be secured against a load from above.

  The drum type washing and drying machine of the present invention can be easily repaired and maintained by arranging a heat pump device and a control device inside the upper part and adding a simple structure to each member. A strong configuration can be realized.

The longitudinal cross-sectional view which shows schematic structure of the drum type washing-drying machine in embodiment of this invention Cross-sectional view of the upper part of the drum-type washer / dryer in the left-right direction Partially exploded perspective view of the control device of the drum type washing and drying machine Explanatory drawing which shows schematic structure of the drum type washing-drying machine of the conventional heat pump drying system described in patent document 1 Longitudinal sectional view of a conventional drum-type washing and drying machine described in Patent Document 2

  The first invention includes a housing, a top plate disposed on the upper surface of the housing, a water tank that is supported in a vibration-proof manner in the housing, and a bottomed cylindrical shape that is enclosed in the water tank. A rotating drum, a motor that rotationally drives the rotating drum, a heat pump device that is disposed inside the top plate and dries laundry in the rotating drum, the motor that is disposed inside the top plate, and the like And a control device that controls each process such as washing, rinsing, dehydration, and drying, and the control device has a substantially rectangular bottomed shape with a case groove formed in the upper part of the left and right walls, and the protection A control device main body provided in the case, a lower protective cover that covers the lower part of the protective case, and an upper protective cover that covers the upper part of the protective case and forms a plurality of cover protrusions on the top surface part, Left and right cover end surfaces of the upper protective cover The protective cover of the control device can be easily removed by inserting it into the case groove of the protective case and bringing the upper surface of the upper protective cover and the rear surface of the top plate into contact with or close to each other. Repair maintenance can be easily performed, and sufficient strength can be ensured against a load from the upper part to prevent damage to internal components of the control device.

  In the second invention, in particular, the heat pump device of the first invention is surrounded by a heat pump outer frame formed of plastic, and the outer frame rib formed on the upper surface portion and the back surface portion of the top plate abut or By making it approach, sufficient intensity | strength can be ensured also with respect to the load from an upper part, and damage to the components inside a heat pump apparatus can be prevented.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a longitudinal sectional view showing a schematic configuration of a drum-type washing / drying machine according to an embodiment of the present invention.

  In FIG. 1, the rotating drum 41 is formed in a bottomed cylindrical shape, and a large number of water passage holes 42 are provided on the entire outer periphery, and the rotating drum 41 is rotatable in a water tank 44 that is swingably supported in a housing 43. It is arranged.

  A rotation axis (rotation center axis) 45 is provided at the rotation center of the rotary drum 41 in the inclination direction, and the axial center direction of the rotation drum 41 is inclined downward from the front side toward the back side. A motor 49 attached to the vicinity of the back side of the water tank 44 is connected to the rotating shaft 45 via a large pulley 46, a belt 47, and a small pulley 48, and the rotating drum 41 is rotated in the forward and reverse directions. The inclination angle of the rotary drum 41 is, for example, 10 degrees.

  Further, a plurality of projection plates 50 for stirring clothes are provided on the inner wall surface of the rotary drum 41. By rotating the rotary drum 41 at a low speed, the clothes are hooked by the projection plates and lifted upward. By applying a stirring operation (tumbling operation) such as dropping at a high height, clothes are stirred and washed, and a drying operation is performed.

  The above-described rotating drum 41, water tank 44, motor 49, etc. constitute a vibration water tank unit 51.

  An opening provided in the upward inclined surface of the housing 43 on the front side of the water tank 44 is covered with a door body 52 so as to be freely opened and closed. By opening the door body 52, the laundry is taken in and out of the rotary drum 41 through the clothing entrance 53. I can do it.

  Further, the water tank unit 51 is supported in a vibration-proof manner by a vibration isolating member 54 below the housing 43 and an upper spring body 55, and one end of a drainage path 56 is connected to the lower part of the water tank 44. The other end is connected to a drain valve (drain means) 57 to drain the washing water in the water tank 44 to the outside.

  The water supply valve (water supply means) 58 supplies water into the water tank 44 through the water supply path 59.

  In addition, an operation panel unit 60 for a user to select a washing course is disposed on the front upper portion of the housing 43, and the input setting display device 61 receives the input information from the operation panel unit 60. Based on the display means (not shown) on the operation panel 60, the user is notified.

  Further, a top plate 62 that covers the housing 43 is disposed on the upper surface of the housing 43, and a control device 63 is disposed on the inside thereof. When the operation start is set by the input setting means (not shown) in the operation panel unit 60, the control device 63 inputs data from a water level detection means (not shown) or the like that detects the water level in the water tank 44. Then, the operations of the motor 49, the drain valve 57, the water supply valve 58 and the like are controlled to control each process such as washing, rinsing, dehydration, and drying processes.

  In order to dry the clothes, the air in the water tank 44 and the rotating drum 41 is circulated by the blower unit 64. However, the air that has been deprived of moisture from the laundry in the rotating drum 41 becomes humid. It passes through a discharge port 65 provided at the upper side of the water tank 44 and is discharged to the heat pump device 66 outside the rotating drum 41.

  The heat pump device 66 includes a compressor 67 that compresses the refrigerant, a heating unit (heat radiator) 68 that radiates heat of the refrigerant that has been compressed to high temperature and high pressure, and a throttle unit that reduces the pressure of the high-pressure refrigerant. 69, a dehumidifying part (heat absorber) 70 that draws heat from the surroundings by the reduced pressure and low pressure refrigerant, and a pipe 71 that connects these four members to circulate the refrigerant, and is discharged. The drying air is dehumidified by a dehumidifying section (heat absorber) 70. The drying air dehumidified by the dehumidifying part (heat absorber) 70 is heated by the heating part (heat radiator) 68. The heated drying air passes through the circulation air passage 72 from the air blower 64 disposed in the middle of the circulation air passage 72, and is blown to the rear of the rotary drum 41 at the end of the circulation air passage 72. From the outlet 73, it blows out into the rotating drum 41 again, passes through the clothing, is led to the outlet 65 again, and circulates.

  The blower unit 64 is provided downstream of the heat pump device 66 and sends the drying air heated by the heating unit 68 to the downstream side of the circulation air passage 72. The blower unit 64 is connected to the blower fan 74 and the blower fan. And a fan motor 75.

  FIG. 2 is a cross-sectional view of the upper part of the drum-type washing and drying machine in the left-right direction according to the embodiment of the present invention, and FIG. 3 is a partially exploded perspective view of the control device.

  2 and 3, at the upper part of the housing 43, the left and right surfaces of the housing 43 are connected by a substantially U-shaped support member 76 in order to maintain the outer strength of the housing 43. Between the top plate 62, the control device 63 and the heat pump device 66 are disposed. The control device 63 and the heat pump device 66 are firmly fixed to the support member 76.

  The heat pump device 66 is surrounded by a heat pump outer frame 77 formed of a reinforced plastic such as talc-containing polypropylene, and an outer frame rib 78 is formed on the upper surface of the heat pump device 66 so as to contact the back surface of the top plate 62, or It is close.

  The control device 63 includes a protective case 79 having a substantially rectangular shape with a bottom, a control device main body 80 provided in the protective case 79, and a lower protective cover 81 formed of sheet metal for safety from the bottom of the protective case 79. The upper protective cover 82 is also formed of a sheet metal for safety reasons and covers the upper part of the protective case 79.

  The control device main body 80 is provided with various electronic components 83, a heat radiating plate 84, and the like, and is moisture-proofed by a moisture-proof potting material 85 made of urethane resin or the like filled in a protective case 79.

  The upper protective cover 82 has a substantially inverted U-shaped cross section, and a plurality of cover convex portions 86 are formed on the top surface of the upper portion to improve the strength. The cover end surface portions 87 a and 87 b on both sides are inserted into case groove portions 88 a and 88 b formed in the upper left and right walls of the protective case 79. In the upper protective cover 82, the uppermost top surface of the cover convex portion 86 is in contact with or close to the top plate rib 90 formed in a lattice shape on the back surface of the top plate 62.

  When the upper protective cover 82 is assembled to the protective case 79, the cover end surface portions 87a and 87b of the upper protective cover 82 are moved upward with respect to the case grooves 88a and 88b of the protective case 79 to which the lower protective cover 81 is attached. 3 can be inserted by being slid in the direction of the arrow A in FIG. 3 (the front-rear direction with respect to the product), and fixed by a plurality of fixing screws 89.

  Repair maintenance can be performed by removing the plurality of fixing screws 89 and sliding the upper protective cover 82 in the direction opposite to the A direction.

  The operation of the drum type washing and drying machine configured as described above will be described.

  Since the upper surface of the product is in a flat state, it is possible that a heavy object is placed on the upper surface of the product, or in the worst case, a person is placed on the upper surface instead of a step.

  However, even if those loads are applied to the upper surface, the upper protective cover 82 of the control device 63 has the cover end surface portions 87a and 87b inserted into the case groove portions 88a and 88b of the protective case 79, and the top surface portion has A plurality of cover convex portions 86 for improving the strength are formed, and the uppermost top surface is in contact with or close to the top plate rib 90 formed in a lattice shape on the back surface of the top plate 62. By being arranged, the upper protective cover 82 is not recessed, and the cover end surface portions 87a and 87b receiving the load at the lowermost portion spread in the lateral direction, and the entire upper protective cover 82 is not deformed. Thereby, the electronic component 83 and the heat sink 84 provided in the control device main body 80 in the control device 63 are not damaged.

  Even if a load is applied to the heat pump device 66 side, the heat pump is surrounded by a heat pump outer frame 77 formed of reinforced plastic, and an outer frame rib 78 is formed on the upper surface of the heat pump device. Since they are arranged close to each other, the components inside the heat pump device 66 are not damaged.

  Further, when repairing and maintaining the control device 63, it is only necessary to remove the top plate 62, remove the fixing screw 89, and slide the upper protective cover 82. The control device 63 is placed below the operation panel 60 in terms of component arrangement. Even if it enters, the upper protective cover 82 can be easily removed.

  As described above, in the present embodiment, it is possible to easily carry out repair maintenance of the control device disposed inside the top plate at the top of the product, and ensure sufficient strength against the load from the top. Thus, damage to the internal parts of the control device can be prevented.

  In addition, repair and maintenance of the heat pump device installed inside the top plate at the top of the product can be easily performed, and sufficient strength can be secured against the load from the top to damage the components inside the heat pump device. Can be prevented.

  As described above, the drum type washing and drying machine according to the present invention can facilitate repair maintenance by arranging the heat pump device and the control device inside the upper part and adding a simple structure to each member. Since it is possible to make the structure resistant to water and external loads, it can be applied to other household appliances.

41 Rotating drum 43 Housing 44 Water tank 49 Motor 62 Top plate 63 Control device 66 Heat pump device 79 Protective case 80 Control device main body 81 Lower protective cover 82 Upper protective cover 86 Cover convex portion 87a, 87b Cover end face portion 88a, 88b Case groove portion 90 Top Plate rib

Claims (2)

A housing, a top plate disposed on the top surface of the housing, a water tank supported in a vibration-proof manner in the housing, a rotating drum formed in a bottomed cylinder and enclosed in the water tank, A motor that rotates the rotating drum, a heat pump device that is disposed inside the top plate and dries the laundry in the rotating drum, and a motor that is disposed inside the top plate and controls the motor to wash, A control device for controlling each process such as rinsing, dehydration, and drying, and the control device is provided with a protective case having a bottomed substantially rectangular shape and having a case groove formed in the upper part of the left and right walls, and the protective case. The control device main body, a lower protective cover that covers the lower part of the protective case, and an upper protective cover that covers the upper part of the protective case and has a plurality of cover protrusions on the top surface part, The end face of the cover Of while inserted into the case groove, contact the back surface of the top plate and the upper surface of the upper protective cover or drum-type washing and drying machine is brought close. The drum-type washing and drying apparatus according to claim 1, wherein the heat pump device is surrounded by a heat pump outer frame formed of plastic, and an outer frame rib formed on the upper surface portion and a rear surface portion of the top plate are in contact with or in close proximity to each other. Machine.

Images