JP2020036706A - Clothes dryer - Google Patents

Abstract

To provide a clothes dryer which is hardly influenced by dust collection, and which includes a dry filter having good operability when being attached/detached.SOLUTION: A clothes dryer of the disclosure includes a filter device 24 for collecting dust, and a filter device storage part 25 for detachably storing the filter device 24. The filter device storage part 25 has a pin 54 for suppressing the filter device 24 from coming off from the filter device storage part 25. Furthermore, on the side wall of the filter device 24, an insertion side inclined surface 51 for guiding the pin 54 in the insertion direction of the filter device 24, and a locking part 53 with which the pin 54 which has ridden over the insertion side inclined surface 51 is engaged are provided. Thereby, in the insertion direction, the filter device 24 can be mounted with a small force, and in the take-out direction, since the pin 54 is engaged with the locking part 53, the filter device does not come off easily by the vibration of a housing 1.SELECTED DRAWING: Figure 3

Description

  The present disclosure relates to a clothes dryer including a filter in a circulation air passage.

  Patent Literature 1 discloses a drum type washing machine provided in a circulation air passage of the washing machine and provided with a filter for capturing dust such as lint. As shown in FIG. 4, the drum type washing machine disclosed in Patent Document 1 is provided in a circulation ventilation path for evacuating and dehumidifying air in a water tub, and blowing heated and dried air into the water tub again, and a circulation ventilation path. And a filter 91 housed in the filter chamber and capturing dust in the circulating air. The filter 91 is provided with a resin spring 75b, and the engagement hole 75a provided in the filter chamber 36 is fitted with the resin spring 75b.

JP 2008-79855 A

  However, in the above-described conventional configuration, there is a notch portion around the resin spring 75b for forming a spring shape, and there is a problem that it is difficult to clean dust accumulated in the notch portion. Further, if dust accumulates in the notch, the deflection of the resin spring 75b is limited, and the force required for attachment and detachment is increased, so that the operability is reduced.

  The present disclosure provides a clothes dryer provided with a drying filter device that is not easily affected by dust collection and has excellent operability when attaching and detaching.

  The clothes dryer according to the present disclosure includes a housing, an outer tub elastically supported inside the housing, a rotating tub rotatably disposed inside the outer tub, and a connection with the outer tub. A circulation air passage for circulating the air in the rotary tank. In the circulation air passage, a heating unit that heats air in the circulation air passage, a dehumidification unit that dehumidifies the air in the circulation air passage, a blowing unit that blows air to the circulation air passage, and captures dust. A drying filter device and a filter device housing section for detachably housing the filter device are provided. Further, the filter device accommodating portion has a pin for preventing the filter device from falling out of the filter device accommodating portion, and the pin is provided on a side wall of the filter device in an insertion direction of the filter device. An inclined surface for guiding, and a locking portion with which a pin that has climbed over the inclined surface is engaged are provided.

  In the clothes dryer in the present disclosure, the drying filter is not easily affected by the accumulation of dust, and is excellent in operability when attaching and detaching the drying filter.

Longitudinal sectional view of the drum type washing and drying machine in Embodiment 1. (A) External side view of a drying filter device and a filter device accommodating portion of the drum type washing and drying machine (b) External top view of a drying filter device and a filter device accommodating portion of the drum type washing and drying machine (c) The drum type XY sectional view in FIG. 2B of the drying filter device and the filter device accommodating portion of the washing and drying machine. (A) An enlarged schematic diagram around the engaging portion of the drying filter device and the filter device housing portion during the insertion operation. (B) An enlarged schematic diagram of the vicinity of the engaging portion of the drying filter device and the filter device housing portion during the take-out operation. (A) Longitudinal sectional view of a conventional drum type washer / dryer (b) Longitudinal sectional view of a filter device and a filter device accommodating portion of the drum type washer / dryer

  Hereinafter, embodiments will be described in detail with reference to the drawings as appropriate. However, an unnecessary detailed description may be omitted. For example, a detailed description of a well-known item or a redundant description of substantially the same configuration may be omitted. This is to prevent the following description from being unnecessarily redundant and to facilitate understanding by those skilled in the art.

(Embodiment 1)
Embodiment 1 will be described below with reference to FIGS. In the present embodiment, a drum type washer-dryer will be described as an example of a clothes dryer.

  In FIG. 1, a housing 1 includes an outer tank 3 formed in a bottomed cylindrical shape. The outer tub 3 is elastically supported by the plurality of suspensions 2 so that the central axis becomes lower from the front to the rear. Inside the outer tank 3, an inner tank 5, which is a cylindrical rotating tank with a bottom, is rotatably arranged. The inner tank 5 is driven to rotate by a motor fixed to the bottom of the inner tank 5. The housing 1 has an opening 1a facing the openings of the inner tank 5 and the outer tank 3, and clothes can be taken in and out of the inner tank 5 through the opening 1a. The door 7 is provided to be openable and closable so as to cover the opening 1a.

  At the bottom of the outer tub 3, a drainage path 9 for discharging washing water is provided, and the drainage path 9 is connected to a drainage valve 10. The drain valve 10 is provided at a lower rear portion of the housing 1 and is provided to be freely opened and closed. During washing, the drain valve 10 is closed, and a predetermined amount of washing water is stored in the outer tub 3. At the time of drainage, the drain valve 10 is opened to discharge the washing water to the outside.

  A first circulation air passage 12 is connected to an upper portion of the outer tub 3. The first circulating air passage 12 extends upward and connects to a heat pump unit 13 arranged at an upper part of the housing 1.

  The heat pump unit 13 includes a heat pump case 17, a dehumidifying unit 20, a heating unit 21, and a filter device 24. The heat pump case 17 is formed in a box shape from resin. At the front of the heat pump case 17, a filter device accommodating portion 25 having an upper opening is formed, and accommodates the filter device 24. The filter device 24 is detachably disposed so as to fit into the filter device housing portion 25, and filters the introduced air. Behind the heat pump case 17, a dehumidifying unit 20 and a heating unit 21 are included. The dehumidifying means 20 cools the air introduced into the heat pump case 17 and condenses water vapor in the air into water. A water discharge path 37 is connected to a lower portion of the heat pump case 17 and discharges water generated by the dehumidifying means 20 to the outer tank 3. The heating means 21 heats the dehumidified air.

  One end of a second circulation air passage 15 is connected to a rear portion of the heat pump case 17, and the other end of the second circulation air passage 15 is connected to the outer tub 3. A blower fan is provided in the second circulating air passage 15, sucks air in the heat pump case 17, and blows air to the outer tub 3.

  As described above, the circulating air path in the present embodiment includes the first circulating air path 12, the heat pump unit 13, and the second circulating air path 15, and circulates air in the direction of arrow a. The circulation path inhales the moist air in the outer tub 3 and sends the dried hot air into the inner tub 5 to dry the laundry.

  Subsequently, the filter device 24 and the filter device housing 25 will be described with reference to FIG.

  FIG. 2A is an external side view of a drying filter device and a filter device accommodating portion of the drum type washing machine in the present embodiment.

  As shown in FIG. 2A, the filter device 24 mainly includes a filter housing 24a made of resin and a mesh-shaped filter portion 24b in which pores are regularly arranged. In a state where the filter device 24 is housed inside the filter device housing portion 25, the filter portion 24b faces the flow of the circulating air. The filter unit 24b captures dust contained in the circulating air and stores the dust inside the filter device 24. By removing the filter device 24 from the filter device housing portion 25, the user can discard the dust housed inside.

  FIG. 2B is an external top view of a drying filter device and a filter device accommodating portion of the drum-type washing machine according to the present embodiment, and FIG. 2C is a drying filter device and a filter device accommodating of the drum-type washing machine. FIG. 3 is an XY cross-sectional view of a portion in FIG.

  In FIG. 2C, on the side surface of the filter device 24, an insertion-side inclined surface 51 that is gently raised with respect to the side surface, and an extraction-side inclined surface that is settled in the opposite direction to the insertion-side inclined surface 51. A surface 52 and a locking portion 53 provided so as to be parallel to the side surface are arranged. The insertion-side inclined surface 51, the withdrawal-side inclined surface 52, and the locking portion 53 are integrally formed, and are convex with respect to the side surface of the filter device 24. Since the insertion-side inclined surface 51, the extraction-side inclined surface 52, and the locking portion 53 do not have a horizontal surface, dust naturally dropped from above does not easily accumulate, and the convex shape facilitates removal of attached dust.

  On the other hand, the filter device accommodating portion 25 includes a pin 54 for preventing the filter device 24 from coming out of the filter device accommodating portion 25. The pin 54 is arranged to penetrate inward from an opening provided in the wall surface of the filter device housing 25. A metal spring 55 having an urging force is provided inside the pin 54 toward the inside of the filter device accommodating portion 25, and a pin cover 56 is arranged on the back surface of the pin 54. The pin cover 56 is fixed by a screw 57 in a state where the pin 54 and the metal spring 55 are pressed from the rear surface toward the inside of the filter device housing 25. As described above, by configuring the pins 54, the metal springs 55, and the pin covers 56 to be attached from the outside of the filter device housing portion 25, the work efficiency at the time of assembly can be increased. Further, since the pins 54 are formed of resin, even if dust adheres, the pins 54 can be cleaned by gently wiping them.

  In a state where the filter device 24 is housed in the filter device housing portion 25, the pin 54 is stopped in relation to the extraction side inclined surface 52. Accordingly, since the filter device 24 is locked while being housed inside the filter device housing portion 25, it is possible to prevent the filter device 24 from jumping out of the filter device housing portion 25 even if the housing 1 abnormally vibrates. it can.

  The operation of the washing machine configured as described above will be described below.

  When the user puts laundry into the inner tub 5 and operates an operation display unit (not shown), a washing operation is started. The details of the washing operation are omitted. When the washing operation is completed, the drying operation is started. When the drying operation is started, the blower fan 11 sucks the air in the outer tub 3 and the inner tub 5. The inner tub 5 is rotationally driven by a motor 6 and stirs the clothes stored in the inner tub 5 up, down, left, and right. Dust such as lint and dust adhering to the clothing is removed from the clothing by rotating the inner tank 5.

  The air sucked from the outer tank 3 is sent as circulating air to the filter device 24 through the first circulating air passage 12. The dust removed from the clothes is sent to the filter device 24 together with the circulating air, and is captured by the filter unit 24b when the circulating air passes through the filter device. The air that has passed through the filter device is dehumidified by the dehumidifier 20 and heated by the heater 21. The thus dried hot air is blown into the inner tank 5 through the second circulation path by the blower fan 11. By repeating the above operation, the washing machine evaporates the moisture of the laundry in the inner tub 5 and dries the laundry. When the air in the inner tank 5 exceeds the preset drying rate, the drying operation ends.

  Subsequently, an operation when the filter device is attached and detached will be described with reference to FIG.

  FIG. 3A is an enlarged schematic view of the periphery of an engaging portion of the drying filter device and the filter device housing portion during the insertion operation, and FIG. 3B is a diagram illustrating the drying filter device and the filter device housing portion during the removal operation. FIG. 4 is an enlarged schematic view of the vicinity of an engaging portion of FIG.

  First, the insertion operation of the filter device 24 will be described with reference to FIG.

  First, the user inserts the filter device 24 into the filter device housing 25. At this time, the pin 54 is in contact with the lower part of the insertion-side inclined surface 51. When the user pushes the filter device 24 downward, the metal spring 55 contracts, and the pin 54 is gradually pressed toward the pin cover 56. As the filter device 24 moves downward, the pin 54 gradually moves along the insertion-side inclined surface 51 toward the pin cover 56. Since the pin 54 moves along the insertion-side inclined surface 51 that is gently inclined, the pin 54 receives weak resistance due to the urging force of the metal spring 55. Thus, the pin 54 gradually contracts, so that a smooth insertion feeling can be given to the user.

  When the pin 54 crosses the corner between the insertion-side inclined surface 51 and the withdrawal-side inclined surface 52 and reaches the locking portion 53, the pin 54 makes a noise due to collision with the locking portion 53, and I can stop it. When the pin 54 and the draw-out side inclined surface 52 are engaged, the user cannot insert the filter device 24 further any further. The user can know that the insertion operation has been completed based on the sound of the collision between the pin 54 and the locking portion 53 and the disappearance of the resistance caused by the metal spring 55.

  Next, the removal operation of the filter device 24 will be described with reference to FIG. The user grips a grip portion (not shown) provided on the filter device 24 and pulls it upward. Then, the pin 54 held by the extraction side inclined surface 52 and the locking portion 53 is strongly pressed against the extraction side inclined surface 52 and moves to the pin cover 56 side. The extraction side inclined surface 52 is formed so as to be steeper than the insertion side inclined surface 51 with respect to the pin 54. Therefore, the pull-out side inclined surface 52 at the time of the take-out operation receives more resistance due to the urging force of the metal spring 55, and the force required for the take-out operation is larger than the force required for the insert operation. When the pin 54 gets over the angle between the extraction side inclined surface 52 and the insertion side inclined surface 51, the pin 54 collides with the insertion side inclined surface 51 and makes a noise. The user can know from the collision noise and the disappearance of the resistance by the metal spring 55 that the locking by the pin 54 has been eliminated. As described above, the filter device 24 in the present embodiment is configured so that it is gradually inserted with a small force at the time of the insertion operation, and requires a large force at the time of the removal operation as compared with the insertion operation. The lock does not come off due to vibration or the like. In addition, at the time of the opening / closing operation of the door 7 and the blowing operation by the drying operation, the internal pressure of the inner tank 5 rises, and a force in the removal direction is applied to the filter device 24. , The force required during the unloading operation is increased.

As described above, in the present embodiment, the clothes dryer is provided with housing 1, outer tub 3 elastically supported inside the housing, and rotatable inside outer tub 3. An inner tank 5 and a circulation air passage connected to the outer tank 3 and circulating air in the inner tank 5 are provided. In the circulation air passage, a heating unit 21 for heating air in the circulation air passage, a dehumidifying unit 20 for dehumidifying the air in the circulation air passage, a blowing unit 11 for blowing air to the circulation air passage, and a filter for capturing dust. A device 24 and a filter device housing portion 25 for detachably housing the filter device are provided. The filter device accommodating portion 25 has a pin 54 for preventing the filter device 24 from coming out of the filter device accommodating portion 25. Further, on the side wall of the filter device 24, an insertion-side inclined surface 51 for guiding the pin 54 in the insertion direction of the filter device 24, and a locking portion 53 with which the pin 54 having climbed over the inclined surface is provided. I have.

  As a result, in the direction in which the filter device 24 is mounted, the pin 54 is guided by the insertion-side inclined surface 51, so that the filter device 24 can be mounted in the filter device housing portion 25 with a small force. Since the engaging portion 54 is engaged with the engaging portion 53, the filter device 24 can be prevented from coming off during the drying operation. Therefore, the filter device 24 according to the present embodiment is excellent in operability at the time of attachment and detachment.

  As in the present embodiment, a metal spring 55 may be used to bias the pin 54. This makes it difficult for the pin 54 to deteriorate even in a high-temperature, high-humidity environment, so that it is possible to suppress a decrease in the force with which the pin 54 holds the drying filter device.

  As in the present embodiment, the locking portion 53 may be made convex with respect to the side wall of the filter device 24. As a result, the accumulation of dust in the locking portion 53 can be suppressed, and even if dust accumulates in the filter device 24 due to long-term use, the engagement force between the filter device 24 and the filter device housing portion 25 decreases. do not do. Therefore, it is hardly affected by the collection of dust, and the cleaning property is high.

  As in the present embodiment, the extraction side inclined surface 52 may be steeper than the insertion side inclined surface 51. This makes it possible to increase the force required at the time of pulling out as compared with the force required at the time of insertion, and to generate a clicking sound at the time of insertion and at the time of removal. Therefore, the user can feel a smooth insertion feeling and a click feeling that the attachment / detachment is completed.

(Other embodiments)
As described above, Embodiment 1 has been described as an example of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can be applied to embodiments in which changes, replacements, additions, omissions, and the like are made.

  Therefore, other embodiments will be exemplified below.

  In the first embodiment, the drum type washer / dryer was described as an example of the clothes dryer. The clothes dryer is not limited to the drum type washer / dryer as long as it can dry wet clothes. Therefore, a clothes dryer having no washing function may be used, or a vertical washing / drying machine having a drying function may be used.

  In the first embodiment, a drum type washing machine including a heat pump has been described as an example of the clothes dryer. The clothes dryer is not limited to a clothes dryer having a heat pump, as long as it can dry wet clothes, and may be a heater type.

In the first embodiment, the pin 54 having the metal spring 55 therein has been described as a pin for preventing the filter device from coming out of the filter device housing portion. The pin only needs to prevent the filter device from coming out of the filter device accommodating portion, so that a spring may not be used, and a part of the pin may be made of an elastic material.

  In the first embodiment, the insertion-side inclined surface 51, the extraction-side inclined surface 52, and the locking portion 53 have been described as an example of a configuration having a locking portion inclined surface in addition to the inclined surface and the locking portion. The shape of the locking portion is not limited to a shape parallel to the side wall of the filter device, since the locking portion only needs to be engaged with a pin that has climbed over the inclined surface. For example, a curved surface in which the locking portion and the locking portion inclined surface are integrated may be used.

  It should be noted that the above-described embodiments are intended to exemplify the technology according to the present disclosure, and thus various changes, substitutions, additions, omissions, and the like can be made within the scope of the claims or the equivalents thereof.

  The present disclosure is applicable to a clothes dryer. Specifically, the present disclosure is applicable to a vertical washing machine, a drum-type washing machine, a clothes dryer having no washing function, and the like.

Reference Signs List 1 housing 1a opening 2 suspension 3 outer tank 5 inner tank (rotating tank)
7 door 9 drain route 10 drain valve 11 blower fan (blower means)
12 first circulation air passage 13 heat pump unit 15 second circulation air passage 17 heat pump case 20 dehumidifying means 21 heating means 24 filter device 24a filter housing 24b filter unit 25 filter device housing unit 37 water discharge path 51 insertion side inclined surface 52 Pull-out side inclined surface 53 Locking part 54 Pin 55 Metal spring 56 Pin cover 57 Screw

Claims (4)

A housing,
An outer tank elastically supported inside the housing,
A rotating tank rotatably disposed inside the outer tank,
A circulating air passage connected to the outer tub and circulating air in the rotary tub,
A heating unit that heats the air in the circulation air passage, a dehumidification unit that dehumidifies the air in the circulation air passage, a ventilation unit that blows air to the circulation air passage, and a filter device that captures dust. And a filter device accommodating portion that detachably houses the filter device,
The filter device housing portion has a pin for preventing the filter device from falling out of the filter device housing portion,
On the side wall of the filter device, an inclined surface for guiding the pin in the insertion direction of the filter device,
And a locking portion with which the pin that gets over the inclined surface engages.
Clothes dryer. The filter device housing portion has a metal spring that biases the pin toward the filter device,
The clothes dryer according to claim 1. The inclined surface and the locking portion are convex with respect to a side wall of the filter device.
The clothes dryer according to claim 1 or 2. The locking portion has a locking portion inclined surface that guides the pin in the pull-out direction of the filter device, and the locking portion inclined surface is formed to be steeper than the inclined surface.
The clothes dryer according to any one of claims 1 to 3.

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