JP2014033848A - Clothes dryer - Google Patents

Abstract

In a clothes dryer, even if the rotating drum moves during drying, drying air is less likely to leak from the gap between the air blowing path and the rotating drum, the drying efficiency is not lowered, and the drying time is shortened as much as possible.
A front frame member 118 that is provided in front of a rotating drum 320 and restricts the movement of the rotating drum 320, and a first buffer member that is provided on the front frame member 118 so as to face a front end portion 320a of the rotating drum 320. 119a and the second cushioning material 119b bonded to the first cushioning material 119a are provided, so that even if the rotating drum moves during drying, the drying air does not easily leak from the gap between the air blowing path and the rotating drum. The drying efficiency is not lowered and the drying time is shortened as much as possible.
[Selection] Figure 7

Description

  The present invention relates to a clothes dryer for drying clothes.

  A conventional clothes dryer circulates drying air through a ventilation path provided below a rotating drum (see Patent Document 1). The configuration and operation of the conventional example will be described with reference to FIG.

  FIG. 11 is a cross-sectional view showing a conventional clothes dryer. In Patent Document 1, a rotating drum 100 for storing clothing rotates with a rotating shaft provided horizontally. The opening part 14 is provided in the front side, and the back side is comprised by the bottomed cylinder shape which has the bottom part 16. FIG. On the front side of the rotating drum 100, a door body 13 that opens and closes the opening 14 is provided. The user can put the clothes in and out of the rotary drum 100 by opening and closing the door body 13. A blower fan 18 is provided on the back side of the rotary drum 100. By the rotation of the blower fan 18, the drying air is blown from the back side of the rotary drum 100 toward the front side. The drying air in the rotary drum 100 passes through the door body 13, passes through the ventilation path 15 provided below the rotary drum, and reaches the blower fan 18 again. In this way, the drying air circulates.

JP 2005-177513 A

  However, since the sealing between the rotating drum and the ventilation path is insufficient in the conventional configuration described above, if clothes are put into the rotating drum and the rotating drum is rotated during drying, weight and unbalance of the clothes are generated and rotation occurs. There was a problem that the drum moved up and down, left and right, back and forth, drying air leaked from the gap between the air blowing path and the drum, the drying efficiency was lowered, and the drying time was prolonged.

  The present invention solves the above-described conventional problems, and even if the rotating drum moves up, down, left, and right, back and forth during drying, the drying air is less likely to leak from the gap between the blowing path and the rotating drum, and the drying efficiency is reduced. The purpose is to shorten the drying time as much as possible.

  In order to solve the above-described conventional problems, the present invention provides a rotating drum that stores and rotates clothes, a motor that rotationally drives the rotating drum, an input port for putting clothes in and out of the drying chamber, and the input port A door for closing the air, a blower fan for sending the drying air into the drying chamber, a blowing path for circulating the drying air in the rotating drum, and a movement of the rotating drum provided in front of the rotating drum. A front frame member to be regulated, a first buffer material provided on the front frame member so as to face a front end portion of the rotating drum, and a second buffer material bonded to the first buffer material are provided. It is characterized by that.

  As a result, even when the rotating drum moves in the up / down / left / right / front / back directions during drying, the drying air is less likely to leak from the gap between the air blowing path and the rotating drum, and the drying efficiency is not reduced, and the drying time is minimized. Can do.

  it can.

  In the clothes dryer of the present invention, even when the rotating drum moves in the up / down / left / right / front / rear direction during drying, the drying air is less likely to leak from the gap between the air blowing path and the rotating drum, the drying efficiency does not decrease, and the drying time Can be made as short as possible.

Front view of clothes dryer in Embodiment 1 of the present invention Side sectional view of the clothes dryer Rear perspective view of the clothes dryer Schematic of the heat pump device of the clothes dryer Exploded perspective view of the clothes dryer Rear view of the front frame member of the clothes dryer Enlarged sectional view near the front end of the rotating drum of the clothes dryer Another enlarged sectional view near the front end of the rotary drum of the clothes dryer Front view of the front frame member of the clothes dryer Enlarged sectional view near the rear end of the rotating drum of the clothes dryer Cross section of conventional clothes dryer

  According to the first aspect of the present invention, there is provided a rotating drum for storing and rotating clothing, a motor for rotationally driving the rotating drum, a loading port for putting clothes in and out of the drying chamber, and a door body for closing the loading port. A blowing fan that sends drying air into the drying chamber, a blowing path for circulating the drying air in the rotating drum, and a front frame member that is provided in front of the rotating drum and restricts the movement of the rotating drum And a first cushioning material provided on the front frame member facing the front end of the rotating drum, and a second cushioning material bonded to the first cushioning material. It is. As a result, even when the rotating drum moves in the up / down / left / right / front / back directions during drying, the drying air is less likely to leak from the gap between the air blowing path and the rotating drum, and the drying efficiency is not reduced, and the drying time is minimized. Can do.

  The invention according to claim 2 is the invention according to claim 1, wherein the second cushioning material is configured such that a part of the rotation center side of the rotating drum is not bonded to the first cushioning material, and The length in the radial direction of the second buffer material is longer than the length in the radial direction of the first buffer material. As a result, even if the rotating drum moves in the up / down / left / right / front / back directions during drying, the second cushioning material can easily come into contact with the front frame member, so that the drying air leaks from the gap between the blowing path and the rotating drum. It becomes difficult, drying efficiency does not fall, and drying time can be shortened as much as possible.

  According to a third aspect of the present invention, in the second aspect of the present invention, an end of the second cushioning material that does not adhere to the first cushioning material is bent toward the rear side of the rotating drum, and the front frame member is formed. It is the structure which made it contact. As a result, even if the rotating drum moves in the up / down / left / right / front / rear direction during drying, the second cushioning material can easily come into contact with the front frame member, so that the drying air is less likely to leak from the gap between the blowing path and the drum. Further, when the rotary drum moves in the radial direction, the front end portion of the rotary drum presses the second cushioning material in a direction sealing the front frame member, so that the second cushioning material and the front frame member are sealed. Therefore, the drying time can be shortened as much as possible without reducing the drying efficiency.

  Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
The clothes dryer according to the embodiment of the present invention will be described below with reference to FIGS. 1 to 10 for the understanding of the present invention. The following description is a specific example of the present invention and does not limit the content of the claims.

  Hereinafter, a schematic configuration of the clothes dryer will be described with reference to FIGS.

  1 is a front view of a clothes dryer according to Embodiment 1 of the present invention, FIG. 2 is a side sectional view of the clothes dryer according to Embodiment 1 of the present invention, and FIG. 3 is Embodiment 1 of the present invention. FIG. 4 is a schematic diagram of the heat pump device of the clothes dryer according to Embodiment 1 of the present invention.

  The clothes dryer 100 includes a housing 110. The clothes dryer 100 has a drying function that circulates drying air in the housing 110 to dry the clothes. The casing 110 includes a front wall 111, a rear wall 112 opposite to the front wall 111, a left wall 113 standing between the front wall 111 and the rear wall 112, and a side opposite to the left wall 113. Right wall 114. The housing 110 further includes a top wall 115 that closes a region surrounded by the upper edges of the front wall 111, the rear wall 112, the left wall 113, and the right wall 114.

  An input port 116 is formed in the front wall 111. The user can store clothes in the housing 110 through the insertion port 116.

  The clothes dryer 100 further includes a door 120 attached to the front wall 111. The door 120 can be rotated between an open position and a closed position by a main body connecting hinge (not shown). The door 120 shown in FIG. 1 is in the closed position. The user can pull the opening / closing handle 123 provided on the door body 120 to move the door body 120 to the open position and open the insertion port 116. Thereafter, the user can store the clothing in the housing 110 through the insertion port 116. The user can move the door 120 to the closed position and close the insertion port 116. At this time, the door 120 is closed and fixed at the closed position by a door lock lever (not shown). When the control unit (not shown) detects that the door lock lever (not shown) is closed on the main body side of the clothes dryer 100, the control unit (not shown) makes the clothes drying ready. Thereafter, the garment is dried in the rotating drum 320.

  The clothes dryer 100 further includes an operation panel 201. The operation panel 201 is used as a part of the front wall 111. The user can set various driving courses by operating the operation panel 201.

  The clothes dryer 100 performs drying according to the course information output from the operation panel 201. The user can move the door body 120 to the open position and put clothes on the rotary drum 320 through the insertion port 116.

  The rotating drum 320 as a drying chamber has a bottomed cylindrical shape, and is arranged so that the rotation axis of the rotating drum 320 is horizontal and the inlet 116 is on the front side.

A double-axis drive motor 310 is provided on the bottom surface of the clothes dryer 100. A drum drive pulley 311 that rotationally drives the rotary drum 320 is provided on the front rotational drive shaft of the double shaft drive motor 310. A drum drive belt 312 that is installed on a drum drive pulley 311 is attached to the outer periphery of the rotary drum 320. A fan drive pulley 313 that rotationally drives the blower fan 331 is provided on the rear rotational drive shaft of the double shaft drive motor 310. The driving force of the both-axis drive motor 310 is transmitted to the blower fan 331 via the fan drive belt 314 installed on the fan drive pulley 313.

  The blower fan 331 is disposed downstream of the heat pump device 420. By driving the blower fan 331, the drying air in the upstream blower path 480 is sucked, while the dry air is sent out to the downstream blower path 332 in the fan case 330. The clothes housed in the rotating drum 320 are lifted in the rotating direction by the rotation of the both-axis drive motor 310, and the stirring operation of dropping from the lifted appropriate height position is repeated. Further, drying air is sent from the circulation duct 430 into the rotating drum 320 by the rotation of the blower fan 331. A large number of holes (not shown) having a diameter of about φ5 are opened as ventilation holes on the bottom surface of the rotating drum 320 to form a downstream air passage 332 connected to the fan case 330.

  As described above, the rotating drum 320 is stirring the clothes. Therefore, the drying air that has flowed into the rotary drum 320 efficiently collides with the clothes. As a result, the garment is properly dried.

  The circulation duct 430 for circulating the drying air includes a lint filter 500 that collects lint, a heat pump device 420, and a fan case 330 that stores a blower fan. The fan case 330 is connected to a rear frame member 117 provided between the rotary drum 320 and the rear wall 112. The lint filter 500 includes a first lint filter 510 provided on the door 120 and a second lint filter 482 provided below the clothes dryer 100 and upstream of the heat pump device 420. The circulation duct 430 includes an upstream air flow path 480 located between the first lint filter 510 and the second lint filter 482.

  The clothes dryer 100 includes a heat pump device 420 that exchanges heat with the drying air that has passed through the rotary drum 320 in the circulation duct 430. The heat pump device 420 is disposed on the flow path of the drying air that flows from the rotary drum 320 to the blower fan 331. The heat pump device 420 exchanges heat with the air flowing toward the blower fan 331 to create high-temperature and dry air.

  The heat pump device 420 includes a dehumidifying unit 421 that dehumidifies air and a heating unit 422 that heats air. The drying air that has passed through the first lint filter 510 passes through the dehumidifying unit 421. As a result, the humidity of the air decreases. Thereafter, the drying air passes through the heating unit 422. As a result, the air is heated. Thus, the heat pump device 420 can exchange heat with the drying air that has passed through the rotary drum 320 to generate drying air for drying the clothes.

  Details of the heat pump device 420 will be described with reference to FIG. 4.

  The heat pump device 420 includes a compressor 423 that compresses the working medium, an expansion valve 424 that decompresses the working medium, a first circulation tube 425 that guides the working medium flowing from the expansion valve 424 to the compressor 423, and an expansion valve 424 from the compressor 423. And a second circulation tube 426 for guiding the working medium flowing to the outside. The first circulation tube 425 and the second circulation tube 426 form a closed loop that passes through the compressor 423 and the expansion valve 424. The working medium flowing through the first circulation tube 425 becomes low temperature due to the decompression by the expansion valve 424. The working medium flowing through the second circulation tube 426 becomes high temperature due to compression by the compressor 423. The first circulation tube 425 and the second circulation tube 426 protrude into the circulation duct 430 that guides air sucked by the blower 410.

  The first circulation tube 425 defines a flow path that is folded back many times in the circulation duct 430. The heat pump device 420 includes a number of fins 427 attached to a first circulation tube 425 that is folded back inside the circulation duct 430. The first circulation tube 425 and the fins 427 in the circulation duct 430 are used as the dehumidifying part 421 described above.

The second circulation tube 426 defines a flow path that is folded back many times in the circulation duct 430. The heat pump device 420 includes a number of fins 428 attached to a second circulation tube 426 that is folded back inside the circulation duct 430. Second circulation chew in circulation duct 430 The drying air flowing in the circulation duct 430 is cooled by the first circulation tube 425 and the fins 427 cooled by the low-temperature working medium. As a result, moisture in the drying air is condensed on the first circulation tube 425 and the fins 427. Therefore, the drying air is dehumidified.

  Thereafter, the drying air is heated by the second circulation tube 426 and the fins 428 heated by the hot working medium. Therefore, the drying air becomes a high temperature and becomes a drying air suitable for drying clothes. As described above, the dehumidifying unit 421 and the heating unit 422 exchange heat with the air flowing in the circulation duct 430 to produce drying air. Therefore, the dehumidification part 421 and the heating part 422 are illustrated as a heat exchanger.

  The blower fan 331 sucks the drying air created by the heat pump device 420, while sending the drying air to the downstream blowing path 332 of the fan case 330. As a result, the drying air flows into the space between the bottom surface of the rotating drum 320 and the rear frame member 117 through the opening 432 of the rear frame member 117.

  Thereafter, the drying air flows into the rotary drum 320 through a large number of air holes (not shown) formed in the bottom wall 321 of the rotary drum 320. While the drying air passes through the rotating drum 320, the clothes collide with the drying air and are dried. Therefore, the drying air discharged from the rotating drum 320 has a high humidity. Further, dust such as lint generated from the clothes and hair attached to the clothes will float in the drying air discharged from the rotating drum 320.

  Thereafter, as shown by the arrows in FIG. 2, the drying air is sent to a door body air hole (not shown) of the housing portion 121 attached to the back surface side of the door body 120. The drying air sent to the door body ventilation hole (not shown) passes through the first lint filter 510. At this time, the first lint filter 510 collects and removes lint floating in the drying air.

  The drying air that has passed through the first lint filter passes through the upstream air blowing path 480 from the first lint filter located above to the second lint filter located below, and then passes through the second lint filter 482. The lint that has passed through the first lint filter 510 is collected and removed by the second lint filter 482. Since the first lint filter 510 is provided substantially perpendicular to the horizontal flow direction of the drying air, it passes through a part of the lint attached to the first lint filter 510 or the first lint filter 510. Since a part of lint falls downward, the first lint filter 510 is less likely to be clogged with lint.

  Thereafter, the drying air flows into the heat pump device 420 and is dehumidified and heated. The drying air that has been dehumidified to a high temperature is sucked again by the blower fan 331 via the suction outlet 429 and sent out to the downstream blower path 332. As shown by the flow of the white arrow in FIG. 2, the drying air circulates in the circulation duct 430 and the rotating drum 320.

  Hereinafter, the seal configuration between the rotary drum 320 and the front frame member 118 and the seal configuration between the rotary drum 320 and the rear frame member 117 will be described with reference to FIGS.

  FIG. 5 is an exploded perspective view of the clothes dryer according to the first embodiment of the present invention, FIG. 6 is a rear view of the front frame member of the clothes dryer according to the first embodiment of the present invention, and FIG. FIG. 8 is an enlarged cross-sectional view of the vicinity of the front end portion of the rotary drum of the clothes dryer according to the first embodiment. FIG. 8 is another enlarged cross-sectional view of the front portion of the rotary drum of the clothes dryer according to the first embodiment of the present invention. FIG. 10 is a front view of the front frame member according to the first embodiment of the present invention, and FIG. 10 is an enlarged sectional view of the vicinity of the rear end portion of the rotating drum according to the first embodiment of the present invention.

  As shown in FIG. 2 and FIGS. 5 to 8, a recess 118 a into which the cushioning material 119 can be fitted is provided on the entire circumference of the front frame member 118 corresponding to the front end 320 a of the rotating drum 320, and the first cushioning material is provided. 119a is fitted and pasted into the recess 118a. A second cushioning material 119b is bonded to the surface of the first cushioning material 119a, and a part of the second cushioning material 119b is in contact with the front frame member 118. It is bent to the rear side. In addition, the radial length of the second cushioning material 119b is set longer than the radial length of the first cushioning material 119a. Further, in FIG. 8, the second buffer material 119b is configured such that a part of the rotation center side of the rotary drum 320 is not bonded to the first buffer material 119a.

  As shown in FIG. 7, when the rotating drum is rotated during drying to cause clothing weight or imbalance and the rotating drum moves in the radial direction, the front end portion 320 a of the rotating drum 320 causes the rear side of the rotating drum 320 to move. Since the second cushioning material 119b bent to the center is pressed against the rotation center side of the rotary drum 320, the sealing property between the second cushioning material 119b and the front frame member 118 is improved, the drying efficiency is not lowered, and the drying time is increased. Can be made as short as possible.

  The first cushioning material 119a preferably uses a sponge member in order to reduce the impact caused by the movement of the rotary drum 320 in the front-rear direction. Moreover, since the friction with the front-end part 320a of the rotating drum 320 generate | occur | produces the 2nd shock absorbing material 119b, it is desirable to use a felt member with high friction resistance.

  Further, as shown in FIG. 2 and FIG. 9 to FIG. 10, a buffer material A141 is attached to the entire periphery of the rear frame member 117 corresponding to the rear end portion 320b of the rotary drum 320, and the surface of the buffer material A141 A buffer material B140 is adhered to. In the present embodiment, the rear end portion 320b has a portion protruding rearward, and the rear convex portion 117a located at a position facing the rear end portion 320b also protrudes rearward. Further, the buffer material A141 is attached to the front convex portion 117b of the rear frame member 117, and the rotating drum 320 when not rotating is in contact with the buffer material B140 and bends the buffer material A141 rearward. The shock absorbing material A141 is formed of an elastic body such as rubber, and a force for returning to the front works to generate a force for using the rotating drum 320 and the shock absorbing material B140 as a seal.

  In particular, when the rotating drum 320 moves backward, the cushioning material B140 is pressed by the rear end portion 320b. Therefore, the rotating drum is rotated during drying, weight of clothes and unbalance are generated, and the rotating drum moves backward. When this occurs, the shock absorbing material B140 and the shock absorbing material A141 bent toward the rear side of the rotating drum 320 by the rear end portion 320b of the rotating drum 320 are pushed toward the rear frame member, and the rotating drum 320 and the shock absorbing material B140 The sealing property is enhanced, the drying efficiency is not lowered, and the drying time can be shortened as much as possible.

  The buffer material A141 is preferably a rubber member having an urging force to return to the front. Moreover, since the friction material B140 generates friction with the rear end portion 320b of the rotary drum 320, it is desirable to use a felt member having high friction resistance.

  As described above, in the clothes dryer according to the present invention, even if the rotating drum moves during drying, the drying air does not easily leak from the gap between the air blowing path and the rotating drum, the drying efficiency does not decrease, and the drying time Can be shortened as much as possible, and is useful for equipment having a clothes drying function from the viewpoint of preventing deterioration of clothes drying performance.

DESCRIPTION OF SYMBOLS 100 Clothes dryer 110 Housing | casing 116 Input port 117 Rear frame member 118 Front frame member 119a 1st buffer material 119b 2nd buffer material 120 Door body 123 Opening and closing handle 140 Buffer material B
141 cushioning material A
320 Rotating drum (drying room)
330 Fan case 331 Blower fan 332 Downstream air passage (air passage)
420 Heat pump device 421 Dehumidifying part 422 Heating part 429 Suction outlet 430 Circulating duct 480 Upstream air supply path (air supply path)
481 Suction inlet 500 Lint filter

Claims (3)

A rotating drum for storing and rotating clothing;
A motor for rotating the rotating drum;
A slot for putting clothes into and out of the drying chamber;
A door body for closing the inlet;
A blower fan for sending drying air into the drying chamber;
A ventilation path for circulating the drying air in the rotating drum;
A front frame member provided in front of the rotating drum and restricting the movement of the rotating drum;
A first cushioning material provided on the front frame member facing the front end of the rotating drum;
A clothes dryer provided with a second cushioning material bonded to the first cushioning material. The second cushioning material is configured such that a part of the rotating drum on the rotation center side is not bonded to the first cushioning material, and the radial length of the second cushioning material is set to the first cushioning material. 2. The clothes dryer according to claim 1, wherein the clothes dryer is longer than a length in a radial direction of the material. The clothes dryer according to claim 2, wherein an end portion of a second cushioning material that is not bonded to the first cushioning material is bent toward the rear side of the rotating drum and is brought into contact with the front frame member.

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