JP6043956B2 - Washing and drying machine - Google Patents

Description

  The present invention incorporates a drying unit using a heat pump device in a heat source for drying clothes or the like, or a drying apparatus for storing an object to be dried such as clothes in a predetermined space and drying the space. The present invention relates to a washing / drying machine having a washing function for clothes and the like.

  Conventionally, this type of washing and drying machine has been conceived in which a drying device is configured by a heat pump device (see, for example, Patent Document 1).

  FIG. 7 shows a conventional washing and drying machine described in Patent Document 1. In FIG. As shown in FIG. 7, a drum 52 is rotatably provided in the water tank 51, and the drum 52 is rotated via a belt 54 by a motor 53 attached to the lower periphery of the water tank 51. The compressor 55, the evaporator 56, and the condenser 57 of the heat pump device constituting the drying device are connected to each other by a pipe so as to circulate the refrigerant, and are disposed below the water tank 51. The evaporator 56 and the condenser 57 are disposed in the air path 58.

  The damp drying air that has come into contact with the clothes in the drum 52 is cooled and dehumidified by the evaporator 56 through the exhaust air passage 60 by the blower fan 54 and then heated by the condenser 57. The dry high-temperature drying air is introduced into the drum 52 through the supply air passage 61 and circulates to dry clothes and the like in the drum 52.

JP 2009-273489 A

  However, as described above, the washing and drying machine provided with the heat pump device requires a heat pump device and an air passage for flowing air and the like, and the component parts are compared with the heater type clothes drying machine or the washing and drying machine. In many cases, in order to enable mounting, there is a problem that an empty space in the housing must be effectively used and these components must be stored compactly. Further, since the water tank 51 is disposed at a relatively high position, there is a problem that vibration is increased when the drum 52 is rotated.

  The present invention solves the above-described conventional problems. By effectively utilizing the empty space in the housing and arranging the components in the space, the housing is reduced in size and the center of gravity of the water tank is lowered. Another object of the present invention is to provide a washing / drying machine capable of reducing vibration during high-speed rotation of the drum.

In order to solve the above-described conventional problems, the washing and drying machine of the present invention has a water tank elastically supported in a housing and provided with an air supply port and an exhaust port for drying air, and an opening on the front side. A drum that rotates in the water tank, a motor that rotates the drum, an air passage communicating with the air supply port and the exhaust port of the water tank, a compressor, a radiator, and a heat absorber. A heat pump unit and a blower for blowing the air for drying the air passage, and the blower is provided on the back side of the water tank so that the suction side faces the front, and the heat pump unit is located below the water tank. And it is provided near the front of the housing, and the drying air is supplied from the back side of the heat pump unit and exhausted from the back side.

  As a result, the height and depth of the housing can be reduced, and the center of gravity of the water tank can be lowered to reduce vibration during high-speed rotation of the drum.

  Since the washing / drying machine of the present invention can be downsized, it can flexibly cope with the space where the washing machine is installed.

Sectional drawing of the principal part seen from the side of the washing-drying machine of Embodiment 1 of this invention Cross-sectional view of the main part seen from the front of the washer / dryer Cross-sectional view of the main part seen from the rear of the washer / dryer Cross-sectional view of the main part seen from above the washing and drying machine System schematic of heat pump device of the washer / dryer Operation diagram when removing the heat pump device of the washer / dryer Configuration diagram of a conventional washing and drying machine

  The present invention includes a water tank elastically supported in a housing and provided with an air supply port and an exhaust port for drying air, a drum having an opening on the front side and rotating in the water tank, and the drum rotating A motor to be connected, an air passage communicating with the air supply port and the exhaust port of the water tank, a heat pump unit in which a compressor, a radiator, and a heat absorber are disposed, and a blower for blowing air for drying the air passage The blower is provided on the back side of the water tank so that the suction side faces the front, and the heat pump unit is provided below the water tank and close to the front of the housing for drying. Air is supplied from the back side of the heat pump unit and exhausted from the back side.

  Thereby, the heat pump unit can be configured compactly below the water tank to reduce the height and depth of the housing, and the installation space for the washing machine can be flexibly accommodated. In addition, the vibration at the time of high-speed rotation of the drum can be reduced by lowering the position of the center of gravity of the water tank.

  Moreover, since it is comprised so that the suction side of an air blower may face the front, even when the diameter of an air blower is large, it can arrange | position to the clearance gap between a water tank and a housing | casing back side. Therefore, a large-diameter blower can be compactly accommodated behind the heat pump device, and high-efficiency drying with a large-diameter large-volume air blower can be realized.

  The said structure WHEREIN: The said water tank and the said drum may incline and be comprised so that a front side may become above a back side.

  Thereby, since the front side has a space below the inside of the housing, the height of the housing can be reduced by arranging a heat pump unit that requires a height on the front side.

The said structure WHEREIN: The said compressor may be arrange | positioned near the side surface of the said housing | casing.

  Since the water tank has a cylindrical shape, the side surface has more space than the center side, so that the height of the housing can be lowered by disposing a compressor having a height especially on the side surface side.

In the above configuration, the heat pump unit may be removable from the front side.

  As a result, in the unlikely event that there is a problem with the heat pump unit, it is possible to take out only the unit for repair and inspection without moving the housing from the installation location, and to provide a washing and drying machine with good workability it can.

  The said structure WHEREIN: You may provide the drying filter which collects the waste thread in the air for drying in the said air path above the said housing | casing.

  Accordingly, it is possible to provide a washing / drying machine in which the drying filter is provided above the housing to facilitate the maintenance of the user and the housing can be downsized even in the configuration in which the drying filter is provided above. Can do.

  The said structure WHEREIN: The said heat pump unit may arrange | position the said heat radiator and the said heat absorber in the left-right direction seeing front.

  Thereby, in the configuration of the heat pump unit that flows in from the back side and flows out from the back side, the air path resistance can be suppressed. Therefore, it is possible to maintain the drying performance while preventing the air volume from decreasing.

  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 cross-sectional view of a main part viewed from the side of the washing / drying machine according to the first embodiment of the present invention, FIG. 2 is a cross-sectional view of the main part viewed from the front of the washing / drying machine, and FIG. FIG. 4 is a cross-sectional view of the main part seen from the rear of the washer / dryer, FIG. 4 is a cross-sectional view of the main part seen from the upper side of the washer / dryer, and FIG. (A)-(c) is an effect | action figure at the time of removal of the heat pump apparatus of the washing / drying machine.

  In FIGS. 1-6, the substantially cylindrical water tank 2 which stores wash water in the housing | casing 1 which forms the outline of a washing-drying machine is provided. In the water tank 2, a bottomed cylindrical drum 4 is provided so as to be rotatable about a rotation shaft 3 extending in the front-rear direction. The aquarium 2 is elastically supported from below by a pair of left and right dampers 5 and is suspended by a pair of left and right springs 6 so that the rotary shaft 3 is lifted forward so that the opening 7 provided on the front surface of the aquarium 2 is at the top. It is inclined to.

  A bearing 8 and a pulley 9 for rotating and supporting the rotary shaft 3 are provided on the rear outer surface of the water tank 2, and the driving force of the motor 10 fixed to the lower outer periphery of the water tank 2 is transmitted to the drum 4 via the belt 11 and rotated. . The motor 10 has a rotating shaft 10a attached to the rear part of the water tank 2 in parallel with the rotating shaft 3 of the drum 4, and is perpendicular to the rotating shaft 3 of the drum 4 as viewed from the front as shown in FIG. Is provided obliquely below the outer periphery of the water tank 2 and disposed below the inside on the rear surface 1a side of the housing 1. In the present embodiment, the motor 10 may not be a belt drive type but may be a direct drive type provided on the back side of the water tank 2.

  A number of through holes 12 are provided on the peripheral side surface of the drum 4, and communicate with the inside of the water tank 2 through the through holes 12. A plurality of baffles 13 projecting inward are provided on the peripheral side surface of the drum 4. An air supply port 14 for introducing drying air is provided on the rear surface of the water tank 2, and an exhaust port 15 for discharging the drying air is provided at the upper front of the water tank 2. An air passage 16 is connected to the air supply port 14 and the exhaust port 15 in communication.

  The heat pump device 17 includes a compressor 18, a condenser 19 (heat radiator) that radiates heat of the refrigerant compressed by the compressor 18, a throttle valve, a capillary tube, and the like for reducing the pressure of the high-pressure refrigerant. The refrigerant is circulated between the throttle means 20 and an evaporator 21 (heat absorber) that takes heat from the surroundings of the refrigerant that has been decompressed to a low pressure, and the refrigerant is connected by an arrow A in FIG. It flows in the direction of and circulates to realize a heat pump cycle. An evaporator 21 and a condenser 19 of the heat pump device 17 are disposed in the air passage 16.

  The condenser 19, the throttle means 20, and the evaporator 21 connected to the compressor 18 of the heat pump device 17 and the pipe line 22 are stored in a case 23 (heat pump unit) that forms the air path 16. The case 23 is provided with an inlet 23a through which drying air flows from the back side and an outlet 23b through which drying air that has passed through the evaporator 21 and the condenser 19 flows out to the back side.

  The inflow port 23 a is in communication with the exhaust duct 16 a constituting the air passage 16 and is connected to the exhaust port 15. Further, the outlet 23b is detachably connected to the blower 24 through a duct 16b constituting the air passage 16.

  As shown in FIG. 2, the heat pump device 17 is located substantially at the center when viewed from the front (front side) which is the front surface 1 b of the housing 1. Further, as viewed from the front, the condenser 19 and the evaporator 21 in the case 23 are arranged in the left-right direction. Therefore, when air passes from the evaporator 21 through the condenser 19, it flows in the left-right direction as viewed from the front. Therefore, as shown in FIG. 4, the drying air flows through an air passage that meanders in a U shape when viewed from above.

  The blower 24 is disposed on the right wall 1d side of the housing 1 and is installed behind the heat pump device 17 and with the rotation shaft 24b direction of the blower fan 24a facing the heat pump device 17, and the diameter of the blower fan 24a. The upper part 24c in the direction is configured to be located above (H) the lowermost part 2a of the water tank 2. In more detail, it arrange | positions so that the suction side of the air blower 24 may face the front.

  The blower 24 is connected in communication with an air supply duct 16 c constituting the air passage 16 and is connected to the air supply port 14. Drying air is blown into the water tank 2 from the air supply port 14 through an air supply duct 16 c formed in an arc shape along the outer peripheral edge of the pulley 9 on the rear surface of the water tank 2.

  The heat pump device 17 is detachably connected to the blower 24 via a duct 16b so that the heat pump device 17 installed in the housing 1 can be taken out from the front surface 1b of the housing 1. The heat pump device 17 is detachably connected to the exhaust duct 16a via the duct 16a1 so that the heat pump device 17 installed in the housing 1 can be taken out from the front surface 1b of the housing 1.

  A drying filter 25 is provided for collecting lint such as yarn waste contained in the drying air flowing from the exhaust port 15 to the exhaust duct 16a. The drying filter 25 is detachably disposed at an upper portion in the housing 1 and is provided so as to be taken out toward the upper surface 1e. The drying filter 25 is connected to the exhaust duct 16a located on the back side.

  Washing water in the aquarium 2 is discharged out of the machine through a drainage channel 27 connected to a drainage port 26 provided at the bottom. In the middle of the drainage channel 27, a drainage filter 28 for collecting foreign matter from the washing water is provided. The drainage filter 28 is positioned in front of the motor 10 and is detachably provided at the front portion in the housing 1 so as to be removable to the front surface 1b side.

A door 29 that opens and closes the opening 7 of the water tank 2 is provided on the front surface 1 b of the housing 1, and a cover 30 that covers the heat pump device 17 from the front surface side is removably attached to the lower side of the door 29 with screws 31.

  A drainage pump 33 that discharges dehumidified water condensed by the evaporator 21 is provided at the bottom of the case 23 of the heat pump device 17. A drainage pipe 34 connected to the drainage channel 27 is connected to the drainage pump 33 and discharged from the drainage channel 27 to the outside of the machine through the drainage tube 34.

  The lower part of the housing 1 is supported by a frame 35, and the lower end of a damper 5 that elastically supports the water tank 2 from below is supported by the frame 35. Further, the case 23 of the heat pump device 17 and the blower 24 connected to the case 23 via the duct 16b are also installed on the frame 35.

  The control means 36 controls the compressor 18 of the heat pump device 17, the motor 10 that rotationally drives the drum 4, the blower 24 that blows the drying air, and the like, and sequentially controls each step of washing, rinsing, dehydration, and drying.

  The operation and action of the washing / drying machine configured as described above will be described below. First, the procedure of the washing process is shown. First, the door 29 is opened, and laundry such as clothes is put into the drum 4 from the opening 7, and then the door 29 is closed and a desired operation program is selected by pressing an operation button (not shown). Let it begin.

  After confirming that the door 29 is closed, the control means 36 drives the motor 10 to determine the amount of clothes put in from load information such as the number of rotations. Thereafter, the water supply valve (not shown) is opened to start storing water in the water tank 2. When a predetermined amount of water is supplied in accordance with the amount of clothing, the water supply is stopped, and the drum 4 is rotated according to a predetermined program, for example, the motor 10 is rotated normally and reversely.

  The clothes in the drum 4 are lifted in the rotation direction by the baffle 13 and dropped from above in the drum 4 to remove dirt by the action of tapping, and when the predetermined time has passed, the washing process ends.

  Following the washing step, a rinsing step is then performed. In the rinsing process, rinsing operations such as drainage, water supply, and driving of the motor 10 are performed. The motor 10 is driven in a state where water is stored in the water tank 2, the detergent component and the dirt component adhering to the clothes are moved into the unclean water, and the rinse is performed to remove the dirt, and the predetermined time is reached. If it passes, one rinse operation will be complete | finished, and after repeating this twice, the water in the water tank 2 is discharged | emitted and a rinse process is complete | finished.

  Following the rinsing step, a dehydration step is then performed. In the dehydration step, the motor 10 is driven to rotate the drum 4 at a high speed (for example, 1100 rpm). At this time, as the rotational speed increases, the centrifugal force applied to the clothing increases, so that the clothing sticks to the inner peripheral surface of the drum 4. Moisture contained in the clothes moves from the through hole 12 of the drum 4 into the water tank 2 by centrifugal force, and the dehydrated water is discharged out of the machine through the drainage channel 27.

  Next, the drying process will be described. After the washing, rinsing and dehydration steps are performed, the clothes are dried. When the drying operation is started, the motor 10 rotates, the drum 4 and the blower 24 rotate, and a flow of drying air (arrow B) is generated. The drying air takes moisture from the clothes b inside the drum 4 and becomes humid, then passes through the drying filter 25 and is led to the evaporator 21 of the heat pump device 17 through the exhaust duct 16a. The drum 4 is rotationally driven by the motor 10 via the belt 11, and the clothes are stirred in the drum 4.

When the compressor 18 of the heat pump device 17 is actuated, the refrigerant is compressed, and this pressure circulates through the condenser 19, the throttle means 20, and the evaporator 21. In the condenser 19, the heat of the refrigerant is released in a high pressure state, and in the evaporator 21, the pressure is reduced by the throttle means 20 to become a low pressure state, and the heat is absorbed into the refrigerant. At this time, the drying air flowing through the air passage 16 is heated by the heat of the condenser 19 by the blower 24.

  The warm air blown into the drum 4 from the air supply port 14 through the air supply duct 16c by the blower 24 is deprived of moisture when passing between the clothes and becomes dry, and then dried from the exhaust port 15. Foreign matters such as lint are removed through the filter 25 and led to the evaporator 21 of the heat pump device 17 through the exhaust duct 16a. When the humid drying air passes through the evaporator 21, sensible heat and latent heat are taken away and dehumidified, and the air is separated into dry air and dehumidified water.

  This dry air is heated again by the condenser 19, becomes warm air, and is blown again into the drum 4 by the blower 24. On the other hand, the dehumidified water condensed in the evaporator 21 is discharged from the drainage pipe 34 through the drainage channel 27 to the outside by the drainage pump 33.

  Moist air that takes moisture from the clothes batter and is exhausted from the exhaust port 15 passes through an exhaust duct 16a that is located in front of the water tank 2 and extends downward from the upper part of the water tank 2 along the right wall 1c of the housing 1. As a result, the air flows into the case 23 from the inflow port 23a provided on the back side to the case 23 located near the front surface 1b in the housing 1.

  The drying air that has flowed into the case 23 flows from the right wall 1 d side in the housing 1 toward the left wall 1 c side, and passes through the evaporator 21 and the condenser 19. The drying air discharged from the outlet 23b of the case 23 reaches the blower 24 provided in the vicinity of the rear surface 1a in the casing 1, passes through the air supply duct 16c extending rearward of the water tank 2, and passes through the air supply port. 14 is introduced into the water tank 2.

  That is, the drying air exhausted from the exhaust port 15 circulates in the drum 4 and the heat pump device 17 provided below the water tank 2 on the rear surface 1 a side in the housing 1.

  On the other hand, the motor 10 that rotationally drives the drum 4 is located below the water tank 2 on the left wall 1 d side in the housing 1. Therefore, the motor 10 is disposed in the vicinity of the vertical line A passing through the rotating shaft 3 of the drum 4, the blower 24 is disposed on the left side of the vertical line A, and the heat pump device 17 does not overlap the motor 10 and the blower 24. By disposing at the position (lower front side), it is possible to effectively utilize the space below the water tank 2 without having to raise the position of the water tank 2 in the housing 1.

  Therefore, in the washing / drying machine that performs the dehydration operation of rotating the drum 4 at a high speed, it is possible to reduce a large vibration that occurs when the laundry is biased in the drum 4 and to change the position of the water tank 2. By lowering down, the height of the housing 1 can be reduced, and downsizing is possible.

  In addition, since the heavy motor 10 and the blower 24 and the position of the compressor 18 of the heat pump device 17 are arranged in the front-rear direction in the lower part of the housing 1, the weight balance can be improved. Stability during operation can be increased.

  Further, the blower 24 is disposed behind the heat pump device 17, and the direction of the rotating shaft 24 b of the blower fan 24 a is set toward the heat pump device 17. Thereby, the upper part of the diameter direction of the ventilation fan 24a is located above the lowermost part 2a of the water tank 2 in the lower space formed between the rear part of the water tank 2 inclined upward and the rear surface 1a of the housing 1. By doing so, the large-diameter blower 24 can be compactly installed in a limited space in the housing 1, and the blowing ability can be enhanced.

  As shown in FIG. 6, the heat pump device 17 can be removed from the front side of the housing 1. A cover 30 is attached to the front surface 1 b of the housing 1.

  Next, as shown in (c), when the case 23 installed on the underframe 35 is lifted upward and pulled forward, the case 16 inserted into the duct 16b and the duct 16c is detached, The case 23 of the heat pump device 17 can be taken out while the duct 16b is held by the blower 24 and the duct 16c is held by the frame 35. Accordingly, the heat pump device 17 can be taken out without moving the housing 1 from the installation location, and maintenance work in a narrow place can be easily performed.

  As described above, in the present embodiment, the water tank 2 elastically supported in the housing 1 and provided with the air supply port 14 and the exhaust port 15 for drying air, and the opening 7 on the front side are provided. The drum 4 that rotates in the water tank 2, the motor 10 that rotates the drum 4, the air passage 16 that is connected to the air supply port 14 and the exhaust port 15 of the water tank 2, the compressor 18, the condenser 19, and the evaporator 21 and an air blower 24 for blowing air for drying the air passage 16. The air blower 24 is provided on the back side of the water tank 2 so that the suction side faces the front. Is provided below the water tank 2 and closer to the front, and the drying air is supplied from the back side of the case 23 and exhausted from the back side.

  Thereby, the heat pump unit can be configured compactly below the water tank to reduce the height and depth of the housing, and the installation space for the washing machine can be flexibly accommodated. In addition, the vibration at the time of high-speed rotation of the drum can be reduced by lowering the position of the center of gravity of the water tank.

  Moreover, the water tank 2 and the drum 4 may be configured to be inclined so that the front side is higher than the back side.

  Thereby, since the front side has a space below the inside of the housing 1, a heat pump unit requiring a height can be arranged on the front side to reduce the height of the housing.

  In the above configuration, the compressor 18 may be disposed near the side surface of the housing 1.

  Since the water tank 2 has a cylindrical shape, the side surface side has more space than the center side. Therefore, the height of the casing 1 can be lowered by disposing the compressor 18 having a height especially on the side surface side. it can.

  In the above configuration, the heat pump unit may be removable from the front side.

  As a result, in the unlikely event that there is a problem with the heat pump unit, the unit 1 can be taken out for repair and inspection without moving the housing 1 from the installation location. Can be provided.

  In the above configuration, a drying filter 25 that collects lint in the drying air may be provided in the air passage 16 above the housing 1.

  Accordingly, the drying filter 25 is provided above the casing to facilitate the maintenance of the user, and the washing / drying machine capable of downsizing the casing 1 even in the configuration in which the drying filter 25 is provided above is provided. Can be provided.

In the above configuration, the heat pump unit may be provided with the condenser 19 and the evaporator 21 in the left-right direction when viewed from the front.

  Thereby, in the configuration of the heat pump unit that flows in from the back side and flows out from the back side, the air path resistance can be suppressed. Therefore, it is possible to maintain the drying performance while preventing the air volume from decreasing.

  In the present embodiment, the case 23 is arranged near the front. However, when the motor 10 is a direct drive type, the case 23 does not need to be near the front, and is located at the center or near the back. May be.

  As described above, the washing and drying machine according to the present invention can be downsized by reducing the height and depth of the casing, and can reduce vibration during high-speed rotation of the drum. It is useful as a machine.

DESCRIPTION OF SYMBOLS 1 Case 2 Water tank 3 Rotating shaft 4 Drum 10 Motor 14 Air supply port 15 Exhaust port 16 Air path 16a Exhaust duct (air path)
16b Duct (wind passage)
16c Air supply duct (wind passage)
17 Heat pump device 18 Compressor 19 Condenser (radiator)
21 Evaporator (heat absorber)
22 Pipe line 23 Case (heat pump unit)
23a Inlet 23b Outlet 24 Blower 28 Drain filter

Claims (6)

A water tank elastically supported in the housing and provided with an air inlet and an outlet for drying air;
A drum having an opening on the front side and rotating in the water tank;
A motor for rotating the drum;
An air passage in communication with the air supply port and the exhaust port of the water tank;
A heat pump unit in which a compressor, a radiator, and a heat absorber are disposed;
A blower for blowing the air for drying the air path,
The blower is provided on the back side of the water tank so that the suction side faces the front,
The heat pump unit is provided below the water tank and near the front of the housing,
The drying air is supplied from the back side of the heat pump unit and exhausted from the back side of the heat pump unit. The washing / drying machine according to claim 1, wherein the water tank and the drum are inclined so that a front side is higher than a back side. The washing / drying machine according to claim 1 or 2, wherein the compressor is disposed near a side surface of the housing. The washing / drying machine according to claim 1 or 2, wherein the heat pump unit can be taken out from a front side. The washing and drying machine according to any one of claims 1 to 4, wherein a drying filter that collects lint in drying air is provided in the air passage above the housing. The said heat pump unit is a washing-drying machine of any one of Claims 1-5 which has arrange | positioned the said heat radiator and the said heat absorber in the left-right direction seeing front.