KR101000689B1 - Washing and drying machine - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a laundry drier that is well shielded from noise from a heat pump unit. The heat pump unit 40 is configured by integrating a compressor 42, an evaporator 43, a condenser 44, and the like. It is arranged and fixed to 21, and the sound insulating cover 56 covers at least the compressor 42 portion of the heat pump unit 40 and is installed in the housing 21 in a non-contact state with the heat pump unit 40. It is characterized by.

Description

Laundry dryer {WASHING AND DRYING MACHINE}

The present invention relates to a laundry dryer having a heat pump unit.

Conventionally, as a washing dryer provided with a heat pump unit, there exist some which were described in Unexamined-Japanese-Patent No. 2007-61643 and Unexamined-Japanese-Patent No. 2006-218313. The heat pump unit is configured by integrating a compressor, an evaporator and a condenser. Then, the air heated in the condenser is supplied to the air supply port of the tank, discharged from the exhaust port of the tank through the drum in the tank, cooled and dehumidified by the evaporator, and repeatedly heated in the condenser. .

By the way, in the laundry dryer provided with the said heat pump unit, the noise from a heat pump unit was large.

In order to solve this problem, there is a configuration shown in FIGS. 8 and 9. In the above configuration, the heat pump unit 1 is an integral structure in which a compressor 3, an evaporator 4 and a condenser 5, and a blower device 6 are installed on the support plate 2, and the evaporator 4, The condenser 5 and the blowing blades 5a of the blowing device 6 are located in the ventilation path formed by the duct 7. The support plate 2 is disposed on a base plate 9 of the housing 8.

When the compressor 3 is operated, the refrigerant is radiated from the condenser 5 and evaporated from the evaporator 4, and the blower 6 is operated to supply air heated in the condenser 5 to the tank 10. It supplies to the mechanism 10a, passes through the inside of the drum 11 in the water tank 10, discharges it from the exhaust port 10b of the water tank 10, cools and dehumidifies with the said evaporator 4, and again the said condenser 5 Heating is repeated, and drying is performed.

In such a laundry dryer, the compressor 3, which is the main vibration source (noise source), and the pipe portion of the heat pump unit 1 are fixed to the support plate 2 in a form of covering the sound insulating cover 12.

However, in the above configuration, even if the sound insulation cover 12 is provided, there is a problem that the noise is hardly lowered.

This invention is made | formed in view of the above-mentioned situation, and the objective is to provide the laundry dryer which can shield the noise from a heat pump unit favorably.

The present invention focuses on the following points.

In the conventional laundry dryer, since the sound insulation cover is fixed to the heat pump unit, it has been found that the vibration of the heat pump unit is directly transmitted to the sound insulation cover so that the sound insulation effect is hardly improved.

In addition, when the part which hardly generate | occur | produces a vibration in the laundry dryer was examined, it turned out that it was a housing | casing. As a result, the housing is equipped with a water tank, a rotating tank and a motor, and a heat pump unit. The housing has a heavy weight of the main part of the laundry dryer, and has a high rigidity, which makes it difficult for vibration to occur in the housing itself.

Accordingly, claim 1 is provided with a water tank installed in the housing and having an air supply port and an exhaust port, a rotating tank installed in the water tank, a heat pump unit configured to be integrated with a compressor, an evaporator and a condenser, and fixed to the housing. A laundry dryer which supplies air heated in a condenser to the air supply port, discharges it from the exhaust port, cools and dehumidifies by the evaporator, and heats again in the condenser. At least the compressor of the unit, and is installed in the housing in a non-contact state with the heat pump unit.

The soundproof cover of claim 1, which covers at least the compressor of the heat pump unit and is provided in the housing in a non-contact state with the heat pump unit, can suppress vibration of the soundproof cover itself, and further, heat It is not affected by the vibration from the pump unit, whereby the sound insulation cover can reliably shield the noise from the heat pump unit, and can greatly contribute to the noise reduction.

According to the present invention, it is possible to satisfactorily shield the noise from the heat pump unit.

Hereinafter, a first embodiment to which the present invention is applied to a drum type laundry dryer will be described with reference to FIGS. 1 to 4.

First and second, the overall configuration of the laundry dryer is shown in Fig. 1 and 2, the housing 21 formed by forming the outline is the base plate 22 constituting the bottom and the outer box 23 fixed to the base plate 22 It consists of). A water tank 24 is disposed in the housing 21, and a drum 25 made of a rotating tank used for washing, dehydrating, and drying laundry is disposed in the water tank 24.

The housing 21 supports the weight of the main components of the laundry dryer (water tank 24, drum 25, motor 38, heat pump unit 40, etc.) described later, and is made rigidly. have.

The water tank 24 and the drum 25 both have a horizontal cylindrical shape, and each of the water tanks 24 and the drums 25 has openings 26 and 27 respectively in the front end portion. The opening 26 of the water tank 24 is connected with the bellows 29 to the opening-and-closing opening 28 of the laundry formed in the front part of the housing 21, and the door 30 is connected to the opening 28 of the housing 21. ) Is installed to open and close.

Small holes 25a are formed in almost the entire area of the circumferential side (body portion) of the drum 25 (only a part of which is shown). The small hole 25a functions as a water passage hole during washing and dewatering, and functions as a ventilation hole during drying. In addition, a plurality of baffles 25b for laundry agitation are provided on the inner surface of the peripheral portion of the drum 25.

In the water tank 24, the exhaust port 31 is formed in the upper part of the cross section of a front side, and the air supply port 32 is formed in the upper part of a cross section of a rear side. In addition, a drain port 33 is formed at a rear portion of the bottom of the water tank 24, and a drain valve 34 is connected to the drain hole 33 outside the water tank 24, and the drain valve 34 is further provided. A drain hose 35 is connected to each other so that the water in the water tank 24 is discharged out of the housing 21.

One end of the rotation shaft 36 is fixedly connected to the center of the rear end face (back side) of the drum 25, and the other end is rotatably inserted through the center end face of the rear end of the water tank 24. It protrudes. A plurality of warm air inflow holes 37 are formed in the rear end face of the drum 25.

The motor 38 is provided in the rear end surface (back surface) of the water tank 24. The motor 38 is an outer rotor type brushless DC motor, and the rotor 39 is fixedly connected to the rotation shaft 36. By the above configuration, the drum 25 is directly rotated by the motor 38 about the rotation shaft 36.

In addition, the water tank 24 is elastically supported on the base plate 22 of the housing 21 by a plurality of suspensions (not shown), and the supporting form thereof has a horizontal axis shape in which the axial direction of the water tank 24 becomes back and forth. It is also inclined to rise forward, and thus the drum 25 also has the same shape.

The heat pump unit 40 is attached to the base plate 22 of the housing 21. The heat pump unit 40 is a unitary structure in which a compressor 42, an evaporator 43, a condenser 44, and a blower device 45 are provided on a support plate 41, and the evaporator 43 and the condenser ( 44, the blow blade 45a of the blower 45 is located in the ventilation path formed by the duct 46. As shown in FIG. In this case, as can be seen from FIG. 1, the support plate 41 has a rectangular shape as a whole, but has a shape slightly expanded to the left (left side when viewed from the front of the washing dryer). The compressor 42 is attached via the some elastic attachment leg 42a.

In addition, the blowing device 45 is constituted by the blowing vanes 45a and the blowing motor 45b.

A discharge pipe 47 is connected between the discharge part of the compressor 42 and the condenser 44, a suction pipe 48 is connected between the evaporator 43 and the suction part of the compressor 42, and the condenser 44 ) And an evaporator 43 are connected to a connecting pipe 49.

The support plate 41 is elastically installed on the base plate 22 by a plurality of elastic legs 50, and the elastic legs 50 are elastic bodies 50a such as rubber as shown in FIG. And mounting screws 50b. The elastic body 50a is fitted into the fitting hole 41b of the supporting plate 41 to protrude upward and downward of the supporting plate 41, and the attachment screw 50b has a screw through hole of the elastic body 50a. It functions as an elastic leg 50a by screwing into the screw hole 22a of the base plate 22 through 50c.

As shown in FIG. 2, the connecting duct portions 46a and 46b in the upward direction are formed at the front end and the rear end of the duct 46 of the heat pump unit 40. The connection duct part 46a is connected to the said exhaust port 31 through the bellows part 51 and the exhaust duct 52, and the connection duct part 46b is through the bellows part 53 and the air supply duct 54. It is connected to the air supply port 32. Warm air by these ducts 46, bellows part 53, air supply port 32, water tank 24 (in drum 25), exhaust port 31, exhaust duct 52, bellows part 51 The circulation path 55 is formed.

On the other hand, the sound insulation cover 56 opens the lower surface so as to cover a part of the heat pump unit 40, for example, the compressor 42, the discharge pipe 47, and the connection pipe 49. It is formed in rectangular box shape. The sound insulation cover 56 includes an attachment member 57 at four lower portions, and the attachment member 57 is attached to the base plate 22. In this case, as shown in FIG. 3, the side plate 56a on the side of the duct 46 of the sound insulation cover 56 has an expansion portion 41a of the support plate 41, a discharge pipe 47, and a suction pipe 48. ) And a gap (a gap formed to avoid contact between the discharge pipe 47 and the side plate 56a which are the protruding members of the heat pump unit 40 and the contact with the connecting pipe 49). The cutouts 56b, 56c, 56d, 56e are formed. Accordingly, the sound insulating cover 56 is attached to the housing 21 in a non-contact form with respect to the heat pump unit 40.

In addition, a flexible closing member 58 made of, for example, an independent bubble-type sponge or the like is provided on the side plate 56a of the cover 56 for sound insulation, and has an upper portion "56c, 56d, 56e" of the cutout 56b. It is adhered to almost close. In addition, since the closure member 58 is flexible even when it comes into contact with the heat pump unit 40, it can be said to be non-contact in terms of vibration propagation.

In the above configuration, on the other hand, in the drying operation, the drum 25 is rotated, the blower 45 is operated, and the compressor 24 is operated. When the compressor 24 is operated, the refrigerant in the compressor 42 is compressed and discharged, dissipated in the condenser 5 and evaporated in the evaporator 4. And the blower 45 is operated to circulate the hot air circulation path 55 as shown by the arrow of FIG. At this time, the circulating air is heated in the condenser 44 and supplied to the water tank 24 (in the drum 25), which contributes to drying of the laundry in the drum 25 and the exhaust port of the water tank 24 ( 31, repeated cooling and dehumidification by the evaporator 43 and heating in the condenser 44 are repeated.

At this time, the heat pump unit 40 including the compressor 42 vibrates to generate a vibration sound, but the main vibration source is the compressor 42. Since the heat pump unit 40 is elastically supported by the elastic legs 50, the vibration of the heat pump unit 40 is less transmitted to the housing 21.

Here, according to the present embodiment, the sound insulating cover 56 covers the compressor 42 and the piping portion of the heat pump unit 40, and the non-contact state in terms of vibration propagation with the heat pump unit 40. Since it is attached to the base plate 22 of the housing 21, the vibration of the sound insulating cover 56 itself can be suppressed, and also the influence of the vibration from the heat pump unit 40 is not affected. Therefore, the sound insulation cover 56 can reliably shield the noise from the compressor 42 of the heat pump unit 40, and can greatly contribute to noise reduction.

In particular, since the sound insulating cover 56 is attached to the base plate 22 having the highest rigidity among the housings 21, it is possible to more reliably prevent the vibration of the sound insulating cover 56.

In addition, according to the present embodiment, since the heat pump unit 40 is installed in the housing 21 by the elastic legs 50 in the elastic support state, the vibration of the heat pump unit 40 causes the vibration of the housing 21. Less work is transmitted to, and the vibration of the sound insulating cover 56 itself can be more reliably prevented, thus making it possible to more reliably prevent noise.

In addition, according to the present embodiment, when the heat pump unit 40 is covered by the cover 56 for sound insulation, the discharge pipe (for example) is a protruding member of the cover 56 for sound insulation and the heat pump unit 40. 47) Since almost all of the cutouts 56b, 56c, 56d, and 56e, which are gaps formed to prevent the back and the side plate 56a from being engaged with each other, are blocked by the flexible closing member 58, Noise leakage can be prevented more effectively while preventing vibration propagation from the heat pump unit 40 to the sound insulating cover 56.

5 and 6 show a second embodiment of the present invention, in which the sound insulation range by the cover 61 for sound insulation differs from the first embodiment. In the second embodiment, the sound insulation cover 61 covers the compressor 42 portion (expansion portion 41a). According to the second embodiment, it is possible to effectively shield noise while attaining miniaturization of the sound insulation cover 61. Also in this case, the cutout 56d for avoiding the suction pipe 48 is blocked by the closing member 58, and although not shown, the cutout for avoiding the discharge pipe 47 is blocked by the closing member.

7 shows a third embodiment of the present invention, wherein the sound insulation cover 62 of the third embodiment covers the entire heat pump unit 40 in a non-contact state. According to the third embodiment, the noise from the heat pump unit 40 can be shielded more effectively.

In addition, the sound insulation cover 56 in the first embodiment may be formed in an open shape without providing the side plate 56a. In this case, the opening is used as the duct 46 of the heat pump unit 40. May be prevented. In this case, the structure which closes the space | interval of both by a flexible closure member may be sufficient.

1 is a cross-sectional plan view of an entire laundry dryer showing a first embodiment of the present invention;

2 is a longitudinal side view of the whole;

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a sectional view of an elastic leg portion,

5 is a view corresponding to FIG. 1 showing a second embodiment of the present invention;

6 is equivalent to FIG. 3,

7 is a view corresponding to FIG. 1 showing a third embodiment of the present invention;

8 is a view corresponding to FIG. 2 showing a conventional example, and

9 is a diagram corresponding to FIG. 1.

* Explanation of symbols for the main parts of the drawings

21: housing 22: large plate

23: outer box 24: countertop

25: drum (rotary bath) 31: exhaust port

32: air supply 38: motor

40: heat pump unit 41: support plate

42: compressor 43: evaporator

44: condenser 45: blower

50: elastic leg 55: warm air circulation

56: Cover for sound insulation 56b, 56c, 56d, 56e: Incision (gap)

58: closure member 61, 62: sound insulation cover

Claims (3)

A water tank installed in the housing and having an air supply port and an exhaust port, A rotary tank installed in the tank, A heat pump unit configured to elastically support the compressor and to integrate the compressor, the evaporator, and the condenser in the elastically supported state, the housing being disposed and fixed in the elastically supported state, A laundry dryer which supplies air heated by the condenser to the air supply port, discharges it from the exhaust port, cools and dehumidifies by the evaporator, and heats again by the condenser. A sound insulation cover is attached to the housing covering the whole of the heat pump unit including the compressor of the heat pump unit in the elastically supported state, and attached to the housing in a non-contact form with the heat pump unit. delete The method of claim 1, A laundry dryer characterized in that the gap formed to avoid the heat pump unit of the cover for sound insulation is closed by a flexible closing member.

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