JP2010022870A - Washing/drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing/drying machine which shares components reasonably, is small in shape, and is inexpensive. <P>SOLUTION: The washing/drying machine includes: a rotation storage motor 43 to rotate and drive a rotation storage 42 to store clothing 41; a compressor 44; heat exchangers 45, 46; an fan motor 51 which is arranged in an air trunk 50 to make the heat exchangers 45, 46 communicate with the rotation storage 42; a first inverter circuit 55 to drive the rotation storage motor 43; the second and third inverter circuits 56, 57 to drive each of the fan motor 51 and the compressor 44 at the time of a drying stroke; a first rectification circuit 58 to supply power to the first and second inverter circuits 55, 56; and a second rectification circuit 59 to supply power to the third inverter circuit 57. The first and second inverter circuits 55, 56 can be constructed inexpensively since they share a first rectification circuit 59. Besides, the burden of the fan motor 51 and the compressor 44 which are driven simultaneously when drying is shared since power is supplied separately from the first and second rectification circuits 58, 59. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a washing / drying machine used for washing operations and the like for general household use and business use.

  Conventionally, as this type of washing and drying machine, air dehumidified by an evaporator is passed through a condenser and circulated as dry air to a rotary drum for drying (see, for example, Patent Document 1).

  FIG. 9 shows a schematic cross-sectional view of a conventional washing and drying machine described in Patent Document 1. As shown in FIG. 9, a rotating drum 2, a motor 3, a blower 22, a circulation duct 18, an evaporator 23, a condenser 24, a compressor 25, a throttle device 26, and an inverter circuit 32 are provided in the main body 1. While the compressor 25 is driven by 32, the air as shown by the arrow by the blower 22 is applied to an object to be dried 21 such as laundry put in the rotary drum 2, and the air dehumidified by the evaporator 23 is The air was guided to the condenser 24, circulated again as dry air into the rotary drum 2, and a part of the dry air was discharged from the exhaust port 28 to the outside.

JP 7-178289 A

  However, Patent Document 1 does not particularly describe the inverter circuit 32 that is a drive circuit that drives the compressor 25, the motor 3 that rotationally drives the rotary drum 2, and the drive circuit that supplies power to the blower 22. For home use, it is considered that the motor 3, the inverter circuit 32, and the blower 22 are independently connected from a commonly used 100V, 50Hz, or 60Hz AC power source. Has a problem that the shape is bulky and the cost is high because there is no common part.

  Generally, when adopting an inverter circuit, a cooling fan for cooling the inverter circuit is required. However, in a conventional washer / dryer, the cooling fan for cooling the compressor and the inverter circuit is controlled by separate control circuits. The circuit configuration is complicated, requires a large circuit space, and is expensive.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a washing / drying machine that shares parts reasonably, has a small shape, and is low in cost.

  In order to solve the above-described conventional problems, the washing and drying machine of the present invention includes a rotary store for storing clothes, a rotary store motor for rotationally driving the rotary store, a heat pump cycle having a compressor and a heat exchanger, An air passage communicating the heat exchanger and the rotary chamber, a first inverter circuit for driving the rotary chamber motor, a third inverter circuit for driving the compressor during drying, and at least the third inverter A cooling fan motor for cooling the circuit, and the cooling fan motor and the compressor are connected in series on the output side of the third inverter circuit.

This eliminates the need for a dedicated drive circuit for the cooling fan and allows the third inverter circuit to be effectively cooled during drying with a simple configuration, thereby providing a small and low-cost washing / drying machine. .

  According to the washing / drying machine of the present invention, it is possible to provide a washing / drying machine that shares parts reasonably, has a small shape, and is low in cost.

Schematic sectional view of the washing and drying machine in Embodiment 1 of the present invention Circuit diagram of the washer / dryer (A)-(C) The figure which shows the input power waveform of each inverter of the washing / drying machine Sectional view of the circuit section of the washer / dryer Sectional view of the circuit section of the washer / dryer Circuit diagram of a washing and drying machine in Embodiment 2 of the present invention Characteristics diagram of current detection means of the washer / dryer Partial circuit diagram of the washing and drying machine in Embodiment 3 of the present invention Schematic cross-sectional view of a conventional washing and drying machine

  A first aspect of the invention relates to a rotary store for storing clothes, a rotary store motor for rotationally driving the rotary store, a heat pump cycle having a compressor and a heat exchanger, and a wind communicating with the heat exchanger and the rotary store. A first inverter circuit that drives the rotary motor, a third inverter circuit that drives the compressor during drying, and a cooling fan motor that cools at least the third inverter circuit, By making the cooling fan motor and the compressor connected in series to the output side of the third inverter circuit, a driving circuit dedicated to the cooling fan becomes unnecessary, and the third circuit can be used when drying with a simple configuration. Since the inverter circuit can be effectively cooled, a small-sized and low-cost washing / drying machine can be provided.

  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 schematic sectional view of a washing / drying machine according to a first embodiment of the present invention.

  In FIG. 1, the washing and drying machine in the present embodiment includes a rotating cabinet 42 that stores clothes 41, a rotating cabinet motor 43 that is connected to a rotating shaft 42 a of the rotating cabinet 42 in a direct axis and rotates the rotating cabinet 42, and a refrigerant. A heat pump cycle 48 including a compressor 44, heat exchangers 45 and 46, and a capillary tube 47 connected by a pipe 48a is provided.

  Furthermore, a fan motor 51 that circulates air is provided in an air passage 50 that communicates the heat exchangers 45 and 46 with the rotary chamber 42.

  The heat exchanger 45 is also called an evaporator or the like because it evaporates the refrigerant and sucks heat from the air into the refrigerant. On the other hand, the heat exchanger 46 acts to give heat from the refrigerant to the air. It is sometimes called a condenser. In particular, the refrigerant to be used is not limited to various types of chlorofluorocarbons. For example, a refrigerant using carbon dioxide (CO2) in a supercritical state or a gas cooler may be used.

The first inverter circuit 55 that drives the rotary motor 43, the second inverter circuit 56 that drives the fan motor 51, and the third inverter circuit 5 that drives the compressor 44.
7 is connected.

  The first rectifier circuit 58 is of a double voltage type and supplies a DC voltage of about 250 V to the first inverter circuit 55 and the second inverter circuit 56, and the second rectifier circuit 59 is also of a double voltage type. However, a DC voltage of 230 V is supplied to the third inverter circuit 57.

  In the present embodiment, two rectifier circuits, that is, a first rectifier circuit 58 and a second rectifier circuit 59 are provided, and the first inverter circuit 55 and the second inverter circuit 56 are provided from the first rectifier circuit 58. DC power is supplied, and the third inverter circuit 57 is configured to be supplied with DC power from the second rectifier circuit 59.

  As a result, the fan motor 51 and the compressor 44 that are simultaneously driven during the drying operation are supplied with DC power separately from the first rectifier circuit 58 and the second rectifier circuit 59, and therefore, the two rectifier circuits are connected to each other. The burden is shared well.

  Further, at the time of dehydration or the like, power is supplied from the first rectifier circuit 58 to the rotary motor 43 through the first inverter circuit 55, and it is not necessary to supply high power to the fan motor 51. The first rectifier circuit 58 and the second rectifier circuit 59 operate rationally and effectively, have a small shape, and can be reduced in cost.

  Moreover, in this Embodiment, the water supply means 63 is comprised by the water supply valve 65 which puts in and stops the water from the water pipe 64 by opening and closing the water pipe 64, and water is supplied from the water supply means 63 to the rotary store 42, The clothes 41 are also washed and dehydrated in the rotating cabinet 42.

  The drain valve 68 is provided at the lower part of the rotary cabinet 42. When the drain valve 68 is in the closed state, water is stored in the rotary cabinet 42 for washing and rinsing. Water is thrown away to the outside through the water distribution pipe 69.

  FIG. 2 shows a detailed circuit diagram of the washing and drying machine in the present embodiment.

  A first rectifier circuit 58 is connected through a 10 ampere fuse 80 from a power plug 61 that receives 50 V or 60 Hz of 100 V. The first rectifier circuit 58 includes capacitors 81, 82, 83, and a core of silicon steel plate. The first reactor 85 also called a normal mode choke coil used, and a common choke coil 86 using a ferrite core are provided. The output from the common choke coil 86 is connected to the first rectifier circuit 58. .

  A terminal E for connecting a ground wire (not shown) from the connection point of the capacitors 82 and 83 to the ground is provided.

  Further, it is composed of a full-wave rectifier 90 in which four diodes (not shown) are assembled in a bridge connection, and electrolytic capacitors 91 and 92 connected to the output side of the rectifier 90, and performs a double voltage rectification operation. As a result, a DC voltage is supplied to the first inverter circuit 55 and the second inverter circuit 56.

In the first inverter circuit 55, six control elements 101, 102, 103, 104, 105, 106 are used, which are in reverse parallel between an insulated gate transistor (IGBT) and a collector-emitter. It is a kind of semiconductor switching element having a connected diode, and these control elements 101 to 106 are configured to be turned on / off by a drive 107, and generally referred to as a three-phase six-stone inverter circuit or the like Is used.

  Although the detailed configuration of the second inverter circuit 56 is not shown, the configuration is also a three-phase six-stone configuration like the first inverter circuit 55 and drives the three-phase fan motor 51. .

  The same applies to the third inverter circuit 57, and six control elements 111, 112, 113, 114, 115, and 116 are used and are turned on and off by the drive 117.

  However, each of the control elements 101 to 106 and 111 to 116 is not particularly limited to the IGBT, and may be a bipolar transistor, a MOSFET, or the like, and the semiconductor material is silicon, silicon carbide (SiC), or the like. Any configuration may be used as long as DC is inputted from the first rectifier circuit 58 and the second rectifier circuit 59 to drive the rotary motor 43 and the compressor 44. It may be anything other than three-phase output such as phase alternating current, or a chopper circuit other than the inverter circuit configuration. In short, it controls the operation of the rotary motor 43 and the compressor 44, and at the same time reduces the heat loss. Any configuration may be used as long as it occurs.

  The same applies to the second inverter circuit 56, and the type of control element can be freely selected.

  For the second rectifier circuit 59, as with the first rectifier circuit 58, a capacitor 118, 119, 120, a common choke coil 121 using a ferrite core, and a single enamel wire on an EI type laminated silicon steel sheet core A second reactor 122 configured by winding is provided, and is connected from a connection point of the capacitors 119 and 120 to a terminal E connected to the ground.

  Further, a full-wave rectifying element 123 in which four diodes are assembled in a bridge connection and electrolytic capacitors 124 and 125 connected to the output of the rectifying element 123 are used to perform the third voltage rectification operation. The inverter circuit 57 is supplied with a DC voltage.

  Thus, in this embodiment, since the reactor and the common choke coil for connecting to the respective inputs of the first rectifier circuit 58 and the second rectifier circuit 59 are provided separately, mutual noise is provided. This eliminates the adverse effects of and makes it possible to operate with extremely high stability.

  The control circuits 135 and 136 are control circuits for the first inverter circuit 55 and the third inverter circuit 57, respectively, and control the operation frequency and the like.

  The control circuit 135 realizes a series of operations of washing and drying by controlling the second inverter circuit 56 and communicating with the control circuit 136.

  The power supply circuit 137 is a switching type that operates by receiving a DC voltage from both ends of the series circuit of the capacitors 91 and 92, and supplies 15V and 5V DC power to the first inverter circuit 55 and the control circuit 135. It is what. The power supply circuit 138 is a switching type that operates by receiving DC voltage from both ends of the series circuit of the capacitors 124 and 125, and 15V and 5V DC power is supplied to the third inverter circuit 57 and the control circuit 136. Supply.

  In the present embodiment, the first inverter circuit 55 and the third inverter circuit 57 have a difference in potential on the negative terminal side, so that communication between the control circuits 135 and 136 can ensure electrical insulation. As described above, a communication path using photocouplers 140 and 141 including a light emitting element and a light receiving element is provided, and the speed setting value of the compressor 44 is sent from the control circuit 135 to the control circuit 136. The actual rotation speed, error information, and the like are transmitted from the control circuit 136 in the reverse direction to the control circuit 135 and transmitted.

  FIG. 3 is a waveform of input power of each inverter circuit of the washing / drying machine according to the present embodiment.

  3A shows a change in the input power P1 of the first inverter circuit 55, FIG. 3A shows a change in the input power P2 of the second inverter circuit 56, and FIG. The change of the input power P3 of the third inverter circuit 57 is shown.

  In the washing / drying machine according to the present embodiment, the first inverter circuit 55 basically rotates at 60 revolutions per minute during washing, and alternately rotates in the opposite direction such as clockwise, counterclockwise, or clockwise. During the dehydration, the rotating cabinet 42 is rotated clockwise up to 1000 revolutions per minute.

  In addition, since rinsing is performed during the washing process, there is also a period during which the rotary store 42 is driven at 1000 revolutions per minute, as in the case of dehydration.

  The third inverter circuit drives the compressor 44 during drying.

  As can be seen from FIG. 3, at the time of dehydration, the first inverter circuit 55 has an input power of about 300 W at the maximum in a situation where the speed of the rotating cabinet 42 is a considerably high speed of about 1000 revolutions per minute. .

  On the other hand, at the time of drying, the rotating cabinet 42 is rotated alternately left and right as in washing, and the speed is driven at about 60 revolutions per minute. Therefore, the input power of the first inverter circuit 55 is 40 W. Compared to the degree and the time of washing, it is a much smaller value.

  During drying, the fan motor 51 is driven by the inverter circuit 2 and the compressor 44 is driven by the third inverter circuit 57. To shorten the time required for drying, for example, within 2 hours, The input power of the second inverter circuit is set to 150 W, and the input power of the third inverter circuit 57 needs to be set to a considerably large value of about 800 W.

  In the present embodiment, the DC power is supplied from the first rectifier circuit 58 to the first inverter circuit 55 and the second inverter circuit 56 during drying, and the total value thereof is 190 W, which is The first rectifier circuit 58 is effectively used because it is almost equal to the maximum value 200 W at the time of dehydration and dehydration.

  On the other hand, since the second rectifier circuit 59 supplies DC power only to the third inverter circuit 57, the maximum value of the power is 800 W during drying.

Thus, in the present embodiment, DC power is supplied from the first rectifier circuit 58 to the first inverter circuit 55 and the second inverter circuit 56, and the second rectifier circuit 59 supplies the third inverter circuit. Since the direct current power is supplied to 57, the first rectifier circuit 58 bears the direct current power required by the second inverter circuit 56 even when it is dry, and the fan motor 51 is driven. Therefore, since the second rectifier circuit 59 can be used effectively only by supplying DC power to the third inverter circuit 57 which is further required during drying, the second rectifier circuit 59 can be used as a total rectifier. The circuit shape and cost can be reduced.

  FIG. 4 shows, in a concrete state, a cross-sectional view of the circuit portion of the washing / drying machine according to the present embodiment.

  In FIG. 4, a plastic first case 150 and a second case 151 are provided, the first case 150 is a boat case 152 and a cover 153, and the second case 151 is a boat case 154. And a cover 155.

  A first printed circuit board 156 is provided in the first case 150. The first printed circuit board 156 is attached to an aluminum radiator 157, and is a component of the first inverter circuit 55. Is mounted with an intelligent power module 158 encapsulating the capacitor, electrolytic capacitors 91 and 92, and the like.

  Further, although not shown in the cross section of FIG. 4, the second inverter circuit 56 is also mounted on the first printed circuit board 156 and is in the first case 150, and is in the boat case 152. A first printed circuit board 156 with components mounted thereon is placed, and then moisture-proofing is performed by potting 159.

  Similarly, a second printed circuit board 161 is provided in the second case 151. The first printed circuit board 161 is also attached to a heat radiator 162 made of aluminum, and a third inverter circuit. An intelligent power module 163 enclosing 57 components, electrolytic capacitors 124 and 125, and the like are mounted and moisture-proof treatment by potting 164 is also performed.

  In the present embodiment, the potting operation is performed twice, and the first case 150 and the second case 151 are necessary, and the number of parts is slightly increased, but all the electrical parts are printed on one sheet. Compared with the case of mounting on a board and assembling, the area of each printed board can be small, so after potting the boat cases 152 and 154 separately, they are piled up as shown in FIG. Because it can be built in, it can fit in the washing and drying machine more compactly than the case where it consists of a single large-area printed circuit board, making it more effective in reducing the size and cost of the washing and drying machine. Will be able to.

  FIG. 5 is also a cross-sectional view of the circuit portion in the present embodiment, and particularly shows the arrangement of the first reactor 85 and the second reactor 122.

  In FIG. 5, the first rectifier 90 and the first reactor 85 that are components of the first rectifier circuit 58 are both mounted on the first printed circuit board 156 and then mounted on the boat case 152. It is potted in the inserted state and is provided in the first case 150.

  On the other hand, with respect to the second rectifying element 123 and the second reactor 122, which are components of the second rectifying circuit 59, the second rectifying element 123 is attached with an aluminum radiator 166, The second reactor 151 is mounted on the second printed circuit board 161 and potted in a state where it is placed in the boat case 154 and provided in the second case 151. And is connected to the second printed circuit board 161 by a lead wire 122a.

  In the present embodiment, the input power of the third inverter circuit 57 that drives the compressor 44 is set to a large value of 800 W in order to increase the sufficient drying performance, so that the reactor 122 generates a large amount of heat and weight. However, as the insulation type of the reactor 122, for example, a type having a considerably high operating temperature such as H type can be easily realized. Therefore, the third inverter circuit 57, the rectifying element 123, and the electrolytic capacitors 124 and 125 are used. It is more dehydrated if it is installed outside the second case 151 apart from electrical parts such as, and assembled by attaching it directly to the case (not shown) of the washing and drying machine with screws (not shown). It is extremely easy in terms of how to hold the second reactor 122 having a large weight due to the vibration and heat treatment.

(Embodiment 2)
FIG. 6 is a circuit diagram of the washing / drying machine according to the second embodiment of the present invention, and particularly shows a circuit diagram around the second rectifier circuit 59, the third inverter circuit 57 and the current detection means. . Note that the same parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  6, the power plug 61, the fuse 80, the first rectifier circuit 58, the first inverter circuit 55, the rotary motor 43, the second inverter circuit 56, and the fan motor 51 are exactly the same as those in the first embodiment. Is.

  The second rectifier circuit 59, the third inverter circuit 57 and the compressor 44 to which the DC power source voltage doubled from the second rectifier circuit 59 is supplied are the same as those in the first embodiment. .

  In the present embodiment, the current detection means 170 is inserted into the wiring connected from the second reactor 122 of the second rectifier circuit 59 to the second rectifier element 123, and the input current to the second rectifier element 123. By detecting this, the input current of the second rectifier circuit 59 is detected.

  The current detection unit 170 includes a current transformer 171, a load resistor 172 connected to the secondary side of the current transformer 171, full-wave rectifier diodes 173, 174, 175, and 176, and a capacitor 177 that reduces ripple of the rectified output. The analog output voltage is output to the microcomputer 179.

  FIG. 7 shows the operating characteristics of the current detection means 170, in which the output voltage is shown on the vertical axis with respect to the input current value shown on the horizontal axis, and the analog voltage is approximately proportional to the effective value of the input current. A DC voltage can be obtained. For example, when the current value is 9 amperes, 3.0 volts is output.

  In the present embodiment, when the input current of the second rectifier circuit 59 becomes large for some reason during drying, it becomes 9 amperes or more set as a predetermined value in advance, and the output voltage of the current detection means 170 is 3 The microcomputer 179 detects that the voltage is larger than the voltage, and issues a command to the drive 107 of the third inverter circuit 57 to lower the operating frequency.

The compressor 44 has a characteristic that the input power to the compressor 44 decreases when the operating frequency decreases, so the power received by the third inverter circuit 57 from the second rectifier circuit 59 decreases, Since the input current of the second rectifier circuit 59 also decreases, the output of the current detection means 170 also decreases, and the output voltage is stable at 3.0 volts, that is, the input current is 9 amperes. Will be.

  Therefore, for example, when the AC voltage supplied from the power plug 61 is reduced from 100 volts to 90 volts, the speed of the compressor 44 is set to a constant value of 100 revolutions per second, for example, washing and drying. Although the input current increases as the voltage input to the machine decreases, in this embodiment, when the input current of the second rectifier circuit 59 exceeds 9 amperes, the current detection means 170 Is detected and output to the microcomputer 179. The microcomputer 179 detects that the input current is larger than a predetermined value, and causes the third inverter circuit 57 to set the operation speed of the compressor 44 at 100 rpm or more. Since a command such as a low speed, for example, 80 revolutions per second, is issued, a current of 9 amperes or more does not flow through the second rectifier circuit 59 as a result.

  Therefore, a large current does not flow through the components of the second rectifier circuit 59 and the third inverter circuit 57, and there is no fear of overheating, and reliability is improved.

(Embodiment 3)
FIG. 8 is a partial circuit diagram of the washing / drying machine according to the third embodiment of the present invention. In addition, about the same part as the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In FIG. 8, the third inverter circuit 57 specifically uses the second rectifier circuit 59 described in the above embodiment as a power source that outputs the DC voltage VDC connected to the input terminals P and N. It is realized with an equivalent configuration.

  The compressor 44 includes a rotor 192 having permanent magnets 191 and 191a, and three-phase windings 193, 194 and 195.

  Reference numeral 200 denotes a cooling fan motor that cools the switching elements 111, 112, 113, 114, 115, and 116 configured by IGBTs that are components of the third inverter circuit 57 by applying cooling air. Other heat generating components such as rectifiers and reactors may be cooled, and other components in the washing and drying machine such as the first inverter circuit 55 and the second inverter circuit 56 may be cooled.

  The cooling fan motor 200 includes a cage-type rotor 201 similar to that used in a general induction motor, a fan 202 that is attached to the shaft of the rotor 201 and rotates, and three-phase windings 203, 204, and 205. Have.

  In the present embodiment, the windings 203, 204, 205 are each configured by winding two turns of enamel wire, and the windings 203, 204, 205 are connected to the windings 193, 194, 195 of the compressor 44. Each is connected in series.

  That is, since the cooling fan motor 200 is connected in series with the compressor 44 and connected to the output of the third inverter circuit 57, each winding current of the compressor 44 is directly used as the winding 203 of the cooling fan motor 200. 204 and 205 are supplied.

  Although the heat generated by the third inverter circuit 57 tends to increase as the speed of the compressor 44 increases, in the present embodiment, an alternating current having a frequency supplied to the compressor 44 is applied to each winding of the cooling fan motor 200. Since the rotor 201 and the fan 202 rotate at a speed close to the rotational speed, the rotor 201 and the fan 202 rotate almost at the speed corresponding to the heat generated by the loss of the third inverter circuit 57. The air volume can be obtained and it works extremely rationally.

  The voltage input to the compressor 44 is obtained by subtracting the voltage of the cooling fan motor 200 from the output voltage of the third inverter circuit 57. As described above, the winding 203 of the cooling fan motor 200, Since 204 and 205 have low voltage and large current with a small number of turns, the voltage drop of the compressor 44 is almost negligible. Cooling while suppressing an increase in the number of parts It is possible to provide a washing / drying machine that achieves small size and low cost by effectively operating the fan motor 200 to effectively cool the third inverter 57.

  In the present embodiment, the cooling fan motor 200 is realized by the configuration of an induction motor having a cage-type rotor 201. Therefore, even when the speed of the compressor 44 changes suddenly, problems such as step-out are caused. However, it does not stick to the cage-type rotor structure. For example, it has a permanent magnet or has magnetic irregularities and is synchronized with the rotating magnetic field. It does not matter as a rotating type.

  Moreover, in each said embodiment, although the rotating shaft 42a of the rotary store | warehouse | chamber 42 is horizontal, it is not necessarily limited to a horizontal rotating shaft, For example, it rotates with a vertical axis at the time of dehydration generally called a vertical shape. It may be one having a rotary cabinet or one having a rotary shaft inclined about 20 to 30 degrees with respect to the horizontal so that the clothes 41 can be easily taken in and out. Other structural components such as other mechanical parts such as a pulsator may be further provided so that effective washing can be performed at the time of washing.

  As described above, the washing / drying machine according to the present invention is such that each inverter circuit operates effectively, and thus the parts can be shared reasonably, and the shape is small and can be configured at low cost. The present invention can be widely applied to various devices having a plurality of electric loads controlled by a circuit.

3 Water tank 4 Rotating drum 7 Water supply valve 19 Recovery passage 21 Detergent container 22 Detergent container (detergent container)
23 Liquid detergent container (detergent container)
23a Liquid detergent input path (input path)
24 Liquid finishing agent storage (detergent storage)
24a Liquid finishing agent input path (input path)
26 Water supply path 30 Water injection lid 40 Detergent input part frame 40a Labyrinth rib 40b Groove 40c Notch 40d Space part 41 Detergent liquid supply path 50 Collection groove

Claims (1)

Rotator for storing clothes, rotator motor for rotationally driving the rotator, heat pump cycle having a compressor and a heat exchanger, an air passage communicating the heat exchanger and the rotator, and the rotator A first inverter circuit that drives the motor, a third inverter circuit that drives the compressor during drying, and a cooling fan motor that cools at least the third inverter circuit. A washing and drying machine in which the cooling fan motor and the compressor are connected in series on the output side.