JP2013153931A - Clothing drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve lint removal performance by smoothly securely transporting captured lint.SOLUTION: A clothing drying machine includes an attachable/detachable dry filter device 21. The dry filter device 21 provided in a circulation air path 16, for capturing lint included in drying air comprises: an introduction part 21a introducing drying air; a substantially semi-cylindrical-shaped filter part 21b provided so as to be almost orthogonal to a flow direction of the drying air from the introduction part; a subordinative gear 22b connected with a drive gear 26 rotated by a drive motor 24 provided inside a body 2; and a spiral-shaped lint capture body 22a connected with the subordinative gear and rotated in contact with an inner surface of the filter part. In the dry filter device 21, lint captured by the filter part 21b by the rotation of the lint capture body 22a is transported in a direction from a first end 28a to a second end 28b, and the pitch of a spiral shape of the lint capture body 22a is reduced as it goes from the first end 28a toward the second end 28b.

Description

  The present invention relates to a clothes dryer for drying textiles such as clothes.

  Conventionally, this type of clothes dryer has a circulation air passage to prevent lint generated from textile products such as clothing from being mixed into the drying air and adhering and accumulating on the blowing means provided in the circulation air passage. A lint filter is provided for capturing lint from the drying air. As the drying operation progressed, lint separated from clothing, etc. was captured and deposited on the filter, and the ventilation resistance of the drying air passing through the circulation air passage increased and the air volume decreased, so it was captured by the filter. It is considered to remove lint (see, for example, Patent Document 1).

  FIG. 15 shows a configuration diagram of a lint filter of a conventional clothes dryer described in Patent Document 1. As shown in FIG. In FIG. 15, a filter unit 101 that captures lint, a lint collection unit 102 that collects lint captured by the filter unit 101, and scrapes the lint captured by the filter unit 101 by rotating a spiral wire rod. , A discharge means 103 for discharging to the lint collection unit 102 is provided.

  The filter unit 101 includes a substantially semi-cylindrical filter 105 that is substantially orthogonal to the blowing direction of the drying air that circulates through the air passage 104, and the discharge means 103 is for drying that passes through the substantially semi-cylindrical filter 105. The spiral wire rod in contact with the surface that captures lint from the air is rotated and scraped by the motor 106 and discharged to the lint collection unit 102.

  A part of the drying air circulating through the air passage 104 includes a lint collection box 107 that forms a lint collection unit 102 from the filter unit 101, a bypass filter 109 provided in an opening 108 formed at the bottom of the lint collection box 107, lint It passes through the opening 111 provided at the bottom of the frame 110 that detachably accommodates the collection box 107 and the communication passage 112, and flows to the air passage 104 on the downstream side of the filter unit 101.

  In this manner, the lint captured on the inner surface of the filter 105 is pushed out to the lint collection unit 102 by a spiral wire and stored in the lint collection box 107. Further, a part of the drying air circulating through the air passage 104 does not pass through the filter 105 but passes through the bypass filter 109 of the lint collection unit 102 and flows to the air passage 104 on the downstream side of the filter unit 101. . The flow of drying air passing through the lint collection unit 102 compresses the lint accumulated in the lint collection box 107 to reduce the mass, and increases the amount of lint collected in the lint collection box 107 to reduce the number of times of disposal. I try to do it.

  Further, as shown in FIG. 16, a spiral lint discharge body 202 is provided in a cylindrical filter 201 that captures lint contained in the dry circulation air, and the lint discharge body 202 is rotationally driven by a motor 203. (For example, refer patent document 2).

JP 2008-6045 A JP 2006-102346 A

  However, in the conventional configuration, the lint on the filter is scraped off by rotating a spiral wire rod or a spiral rigid body that is a lint discharging means. In some cases, the lint bonds to each other and becomes snowball-type, making it difficult to transfer. In addition, the transferred lint is accommodated in a predetermined area, but if the amount of lint to be accommodated increases, the cotton-like and elastic lint may overflow from the accommodation area and overflow. Lint impedes the flow of drying air and causes pressure loss. Further, when the lint is caught between the lint discharging means and the filter, there is a problem that the driving of the lint discharging means is locked and an excessive load is applied to the drive motor.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a clothes dryer capable of smoothly transferring and removing lint.

  In order to solve the above-described conventional problems, the clothes dryer of the present invention includes a detachable drying filter device that is disposed in a circulation air passage and captures lint contained in drying air, and the drying filter device includes: It is rotated by an introduction portion for introducing drying air, a substantially semi-cylindrical filter portion arranged so as to be substantially orthogonal to the flow direction of the drying air from the introduction portion, and a drive motor provided in the main body. A subordinate gear coupled to the driving gear, and a spiral lint collector coupled to the subordinate gear and rotating in contact with the inner surface of the filter unit, the filter unit being rotated by the rotation of the lint collector The lint captured in step 1 is transferred from the first end side toward the second end portion, and the pitch of the spiral shape of the lint collector is moved from the first end side to the second end side. It is a small one.

  This increases the axial force on the lint in the vicinity of the second end of the lint collector compared to the vicinity of the first end, and the lint is bonded and enlarged during the transfer of the lint. However, since the transfer force in the vicinity of the second end, which is the terminal side of the lint transfer, is large, it can be transferred reliably. In addition, even if the amount of lint is large and the storage area side is filled with lint and overflows to the lint collector side, the lint can be pushed in while being compressed because the axial transfer force is large. The air path for drying air can be secured, and the drive motor of the lint discharging means is difficult to lock, resulting in a highly safe configuration.

  The clothes dryer of the present invention can smoothly and reliably transfer the lint captured by the drying filter device, and improve lint removal performance.

Sectional drawing of the principal part of the clothes dryer in Embodiment 1 of this invention. Appearance perspective view of the clothes dryer Rear side perspective view of the drying filter device of the clothes dryer Front perspective view of the drying filter device of the clothes dryer Rear view of the drying filter device of the clothes dryer Front view of the drying filter device of the clothes dryer AA sectional view of the clothes dryer in FIG. BB sectional view of the clothes dryer in FIG. CC sectional view of the clothes dryer in FIG. DD sectional view of the clothes dryer in FIG. Enlarged view of part E1 in Fig. 8 of the clothes dryer Enlarged view of part E2 in Fig. 8 of the clothes dryer Sectional drawing of the principal part of the drying filter apparatus of the clothes dryer in Embodiment 2 of this invention Sectional drawing of the principal part of the drying filter apparatus of the clothes dryer in Embodiment 3 of this invention Configuration diagram of lint filter of conventional clothes dryer Configuration diagram of a lint filter of another example of a conventional clothes dryer

  According to a first aspect of the present invention, there is provided a rotary drum that is rotatably provided in a main body, a motor that rotationally drives the rotary drum, a blower that supplies drying air into the rotary drum, and a discharge from the rotary drum. A circulating air passage for circulating the drying air to the rotating drum via the air blowing means, and a detachable drying filter device disposed in the circulation air passage for capturing lint contained in the drying air, The drying filter device includes an introduction portion for introducing drying air, a substantially semi-cylindrical filter portion disposed so as to be substantially orthogonal to the flow direction of the drying air from the introduction portion, and the body. The lint collector comprises: a slave gear connected to a drive gear that is rotated by a drive motor provided; and a spiral lint collector that is connected to the slave gear and rotates in contact with the inner surface of the filter unit. of The lint captured by the filter portion by movement is transferred from the first end portion side to the second end portion, and the pitch of the spiral shape of the lint collecting body is transferred from the first end portion side to the second end portion. By reducing the end side of the lint, in the vicinity of the second end of the lint collector, the axial force on the lint is greater than in the vicinity of the first end, and a snowball type during lint transfer Even when the lints are combined and become large, the transfer force in the vicinity of the second end, which is the terminal side of the lint transfer, is large, so that the lint can be reliably transferred. In addition, even if the amount of lint is large and the storage area side is filled with lint and overflows to the lint collector side, the transport capacity in the axial direction is large, so the lint can be pushed into the storage area while compressing it. This is possible and a flow path for drying air can be secured. Further, the drive motor of the lint discharging means is difficult to lock, and safety can be improved.

  According to the second aspect of the invention, in particular, the dry filter device of the first aspect of the invention comprises the lint housing region in the direction in which the lint is pushed out from the second end, so that after a plurality of continuous drying operations, Even when the lint overflows from the lint housing area to the second end portion side of the lint collector, the pitch of the spiral near the second end portion is small and the lint transport force in the axial direction is large. The lint overflowing together with the transported lint can be compressed and pushed into the lint accommodation area, and the drive motor is difficult to lock, resulting in a safer configuration.

  In the third aspect of the invention, in particular, since the filter part of the first or second aspect of the invention is configured only in an area that can come into contact with the lint collector, the filter part is not configured in the lint accommodating area. Is difficult to flow in the direction of the lint accommodation region, and it is difficult to push in the lint collected by the wind, but the pressure loss is minimized, and the pitch of the helix near the second end portion Therefore, the lint transport force in the axial direction of the lint collector is large, and the lint can be pushed into the lint accommodation area while being compressed without being locked. Moreover, since the filter part is not comprised in the lint accommodation area | region, when collect | recovering the accumulated lint, lint separation is good and the cleaning property of a dry filter apparatus improves.

  In the fourth invention, in particular, the lint collector of the second or third invention is supported only on the first end side, and between the lint housing region and the second end side of the lint collector. The opening provided in the opening is opened in all directions even when the lint overflows from the inside of the lint accommodation area because the opening is fully opened with respect to the entire circumferential direction of the lint collector. Therefore, the overflowing lint can be uniformly compressed on the entire second end side of the spiral shape, and the pitch of the spiral shape is small on the second end side, so that it is relatively axially acting on the lint. Since the force is large, the lint can be further compressed, so that more lint can be accommodated in the lint accommodation region.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a cross-sectional view of a main part of a clothes dryer according to the first embodiment of the present invention, FIG. 2 is a perspective view of the same, FIG. 3 is a rear perspective view of the dry filter device, FIG. 5 is a rear view of the dry filter device, FIG. 6 is a front view of the dry filter device, FIG. 7 is a cross-sectional view taken along line AA in FIG. 6, and FIG. 6 is a cross-sectional view taken along the line CC in FIG. 6, FIG. 10 is a cross-sectional view taken along the line DD in FIG. 6, and FIG. 11 is an enlarged view of a portion E1 in FIG. 12 is an enlarged view of a portion E2 in FIG.

  1 to 12, the outer tub 1 is elastically supported by a plurality of suspension mechanisms 3 inside a body 2 of a clothes dryer. The rotating drum 4 has an insertion port 6 for taking in and out the laundry 5 on the front side, is configured in a bottomed cylindrical shape, and is disposed in the outer tub 1. The rotating drum 4 is rotatably provided on the drum rotating shaft 4 a and accommodates the laundry 5. A plurality of discharge holes 8 are provided in the peripheral side wall 7 of the rotating drum 4. Further, on the inner surface of the peripheral side wall 7 of the rotating drum 4, an agitating baffle 9 for lifting the laundry 5 in the rotating direction of the rotating drum 4 is projected inward. The outer tub 1, the rotating drum 4 and the drum rotating shaft 4a are disposed so as to be inclined forward and upward at an angle θ (for example, 20 °) with respect to the horizontal.

  A motor 10 that rotationally drives the rotating drum 4 is provided outside the back surface of the outer tub 1 so that the rotating drum 4 is rotated forward and backward via a drum rotating shaft 4a. The motor 10 is composed of a brushless DC motor, and the rotation speed can be freely changed by inverter control. A door 11 that opens and closes the insertion port 6 is provided on the front surface of the main body 2. The opening 12 of the outer tub 1 facing the charging port 6 is connected to the main body 2 with airtightness by a flexible packing 13 that can be expanded and contracted.

  A blower (blower unit) 14 for supplying drying air to the rotary drum 4 is provided at the upper part on the back side in the main body 2, and a heating unit 15 is provided on the downstream side of the blower 14. The blower 14 and the heating means 15 are provided in the circulation air passage 16. The outlet on the downstream side of the circulation air passage 16 communicates with the blower port 17 provided on the back surface of the outer tub 1, and the upstream inlet is an exhaust provided on the upper front portion of the peripheral side wall 7 of the outer tub 1. A communication connection with the mouth 18 is made.

  The drying air discharged into the outer tub 1 from the discharge hole 8 of the rotating drum 4 enters the circulation air passage 16 from the exhaust port 18, and the drying air blown by the blower 14 passes through the heating means 15. After being heated, the air is introduced into the rotating drum 4 from the air blowing port 17 and circulates. 1 indicates the flow of the drying air.

  The circulation air passage 16 includes a cooling water supply unit 19 that supplies cooling water to dehumidify the drying air, a heat exchanger 20 that is cooled by the cooling water supplied from the cooling water supply unit 19, and drying air. Is provided with a dry filter device 21 for capturing lint contained therein. The drying air that has become wet due to contact with the laundry 5 in the rotating drum 4 is cooled by the heat exchanger 20 and dehumidified. The cooling water and the dehumidified water are discharged out of the main body 2.

  The drying filter device 21 is provided on the windward side of the blower 14 and the heat exchanger 20, and captures lint contained in the drying air generated from the laundry 5, thereby lint the heat exchanger 20 and the blower 14. Prevents problems caused by adhesion and deposition. The blower 14 includes a fan motor 14a that drives the blower 14 and a motor current measuring device 14b that measures the current value of the fan motor 14a.

  The drying filter device 21 includes an introduction unit 21a that introduces drying air, a first filter unit 21b and a second filter unit 21c that capture lint from the drying air introduced from the introduction unit 21a, and a first filter unit 21a. An opening 21d for guiding a part of the drying air that could not pass through the filter unit 21b to the second filter unit 21c and a lint removing device 22 are provided.

  The opening 21d is provided between the first filter portion 21b and the second filter portion 21c. The first filter portion 21b and the second filter portion 21c each include a first mesh portion 21e and a second mesh portion 21f formed in a substantially semi-cylindrical shape, and the first mesh portion 21e and the second mesh portion 21f are connected to each other. When the drying air passes, lint contained in the drying air is captured by the drying filter device 21. The first mesh portion 21e and the second mesh portion 21f have a coaxial shape.

  The lint removing device 22 includes a spiral lint collecting body 22a and a dependent gear 22b that are inscribed along the first mesh portion 21e and connected to each other on the first end portion 28a side of the lint collecting body 22a. The slave gear 22b is formed by integrating two parts divided for assembly by screws 22g.

  The cross-sectional shape of the connecting portion between the lint collecting body 22a and the dependent gear 22b is formed in a Y shape as shown in FIG. Between the lint collecting body 22a and the dependent gear 22b, a first gap 22c is provided along the entire Y shape along the Y shape. The lint collecting body 22a is formed of a synthetic resin, and is formed by roughening the surface so that the surface roughness of the outer peripheral end inscribed in the first mesh portion 21e is increased.

  A first bearing 21g and a second bearing 21h are formed in the vicinity of the first end 28a of the lint removing device 22 and the second end 28b on the opposite side. Between the 2nd bearing 21h and the lint collection body 22a, the 2nd clearance gap 22d of the same dimension as the 1st clearance gap 22c provided in the 1st edge part 28a side is provided.

  The pitch of the spiral shape of the lint collector 22a is not constant, and the area PA of the pitch PA and the area PB of the pitch PB having a pitch different from the pitch PA are smoothly connected, and the area PA on the first end portion 28a side. The pitch PB of the region PB on the second end portion 28b side is made smaller than the pitch PA.

  The lint storage area 23 is an area located on the second filter portion 21c side in the dry filter device 21, and is provided adjacent to the second end portion 28b of the lint collection body 22a, and is formed by the lint collection body 22a. The scraped lint is an area that accommodates lint to be pushed out in the axial direction.

  The dry filter device 21 is detachably provided on the upper surface of the main body 2 in the direction of arrow B. A drive motor 24 for driving the lint removing device 22 and a drive gear 26 attached to the tip of the drive motor rotating shaft 25 are provided in the main body 2.

  When the dry filter device 21 is mounted from the upper surface of the main body 2, the lint removing device rotating shaft 22e is parallel to the driving motor rotating shaft 25, and the lint removing device rotation is viewed from the driving motor 24 side as shown in FIG. The drive motor rotating shaft 25 is positioned in the lower left direction of the shaft 22e, and the rotating shafts 22e and 25 are disposed at positions that become the first mesh portion 21e in the right direction.

  The slave gear 22b constituting the lint removing device 22 is connected to the drive gear 26 when the drying filter device 21 is mounted on the main body 2 of the clothes dryer, and the rotational drive of the drive motor 24 is linted via the slave gear 22b. This is transmitted to the removing device 22.

  When viewed from the drive motor 24 side as shown in FIG. 7, the lint removing device rotating shaft 22e is on the right side of the driving motor rotating shaft 25. At that time, the rotation direction of the driving gear 26 is clockwise. The rotation direction of the gear 22b is counterclockwise (see the arrow in FIG. 7). The spiral shape of the lint collector 22a is in the right-handed direction.

  The control unit 30 controls the motor 10, the blower (blower unit) 14, the heating unit 15 and the like, controls the drying operation, and receives the current value measured by the motor current measuring device 14b. The control means 30 includes air volume detection means (not shown) for detecting the air volume of the drying air from the current value measured by the motor current measuring device 14b. When the lint removing device 22 is driven, the control means 30 blows the drying air with a larger air flow rate than during rated operation.

  About the clothes dryer comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. In the drying process, the rotating drum 4 rotates while the wet laundry 5 is accommodated therein. The drying air is blown by the blower 14, passes through the heating means 15, and then is introduced into the rotary drum 4 through the blower port 17.

  The drying air introduced into the rotating drum 4 comes into contact with the wet laundry 5 and removes moisture from the laundry 5, and then includes the lint 27 generated from the laundry 5, and the discharge hole 8 of the rotating drum 4. From the exhaust port 18 provided in the outer tub 1 and introduced into the circulation air passage 16.

  Before the drying air introduced into the circulation air passage 16 reaches the heat exchanger 20, the lint 27 is removed by the drying filter device 21 and is cooled and dehumidified by the cooling water in the heat exchanger 20. The drying air that has been cooled and dehumidified becomes low-temperature dry air, passes through the heating means 15, becomes high-temperature dry air, and is introduced into the rotary drum 4 from the blower port 17.

  Since the lint collector 22a of the lint removing device 22 automatically removes lint through the drive of the drive motor 24 disposed in the body 2 of the clothes dryer, maintenance work for the user can be greatly reduced. This increases convenience. The lint removal is activated when a predetermined air volume drop is detected by the air volume detecting means. The lint removal operation can be performed at an arbitrary timing such as after the drying operation is completed, before the drying operation is started, or during the drying operation.

  The dry filter device 21 includes a first mesh portion 21e formed in a substantially semi-cylindrical shape, and the lint collecting body 22a constituting the lint removing device 22 has a spiral shape inscribed along the first mesh portion 21e. When the vicinity of the contact portion scrapes the lint 27, a force Z is applied to the lint 27 on the mesh in the radial direction and the thrust direction of the mesh, so that the lint 27 is scraped off and the direction Z along the lint removing device rotating shaft 22e. Therefore, even if the lint 27 scraped off is fine, the lint 27 can be transferred to the lint accommodation region 23 by a spiral portion.

  The connecting portion between the lint collector 22a and the subordinate gear 22b is provided with a first gap 22c on the entire circumference, and a second gap 22d is also provided on the entire circumference with the second bearing 21h. Therefore, the lint collector 22a is urged toward the first mesh portion 21e through the spiral portion by the drying air flowing in from the introduction portion 21a, resulting in variations in the component size of the dry filter device 21. In the case where the lint removing device rotating shaft 22e or the drive motor rotating shaft 25 is rattled, the lint collecting body 22a comes into contact with the first mesh portion 21e to surely scrape the lint 27. it can.

  Further, even with a small amount of lint 27 that adheres thinly to the first mesh portion 21e, the lint collector 22a is biased toward the first mesh portion 21e, so that the lint collector 22a is placed on the lint 27. The lint 27 can be reliably peeled off from the first mesh portion 21e.

  In addition, even when the lint 27 is bitten between the first mesh portion 21e and the lint collector 22a, the lint collector 22a is equivalent to the first mesh portion 21e by the first gap 22c and the second gap 22d. Therefore, the drive motor 24 can be prevented from being locked and safety can be improved.

  The first gap 22c and the second gap 22d are set to be larger than the sum of the dimensional variations of the components constituting the dry filter device 21, thereby more reliably absorbing the dimensional variations of the components. Further, when the set maximum amount of clothes is dried once, the lock resistance is further improved by setting it to be larger than the lint thickness captured by the first mesh portion 21e.

  Further, even when the lint collector 22a rides on the collected lint 27, the surface is roughened so that the surface roughness of the outer peripheral end inscribed in the first mesh portion 21e is increased, and the lint collector Since the lint layer on which 22a rides is thin and a small amount, the lint 27 surface can be scraped up by the frictional force of the roughened lint collector 22a outer peripheral end.

  Further, since the lint collection body 22a for scraping the lint 27 is formed of a rigid resin material, the lint 27 is less likely to stick compared to a brush or an elastomer, and the lint 27 may be separated from the lint collection body 22a. Also, there is less worry about wear compared to elastic bodies.

  Further, the pitch of the spiral shape of the lint collector 22a is not constant, and the pitch PB on the second end portion 28b side, that is, the lint accommodating region 23 side is made smaller than the pitch PA on the first end portion 28a side. Since the inclination of the spiral shape approaches a direction perpendicular to the axial direction, the vicinity of the second end portion 28b of the lint collector 22a is closer to the axial direction relative to the lint 27 than the vicinity of the first end portion 28a. Even if the lint 27 is connected and increased in a snowball manner during the transfer of the lint 27, the transfer force in the vicinity of the second end portion 28b on the lint transfer end side is large, so Can be transported.

  Furthermore, since the lint accommodation area 23 is configured in the direction pushed out by the lint collection body 22a, the second end portion 28b side of the lint collection body 22a from the lint accommodation area 23 after a plurality of continuous drying operations. Even when the lint 27 accommodated in the container overflows, the pitch of the spiral near the second end portion 28b is small and the lint transfer force in the axial direction is large. The overflowing lint 27 can also be pushed into the lint receiving area 23 while being compressed. Therefore, the flow path of the drying air can be reliably ensured, the drive motor 24 is difficult to lock, and the configuration is more safe.

  Also, an introduction part 21a for introducing the drying air, a first filter part 21b for capturing the lint 27 from the drying air so as to face the introduction part 21a, and a first filter part provided on the side of the first filter part 21b. And the filter part 21c, and the lint 27 scraped off by the lint removing device 22 is moved toward the second filter part 21c so that the drying air is first introduced through the introduction part 21a. The first filter part 21b to be used is the main ventilation part of the drying filter device 21 and at the same time does not always have the lint 27 and can be excellent in ventilation of the drying air.

  Although the 2nd filter part 21c is the lint accommodation area | region 23, when the lint 27 has not accumulated, it can be used as a ventilation part. Further, when a large amount of lint 27 is accumulated in the lint accommodation area 23, it is necessary to remove the lint 27 by removing the dry filter device 21, but the first filter portion which is the main ventilation portion of the dry filter device 21 is used. 21b and the second filter portion 21c on which the lint 27 accumulates can be integrated and detached, so that the lint 27 of the second filter portion 21c is removed and at the same time the first filter portion 21b is clogged or foreign matter is mixed. The convenience can be increased.

  An opening 21d is provided adjacent to the side of the first filter portion 21b. Since normal pressure loss occurs in the filter unit, not all the drying air introduced into the first filter unit 21b passes through the first filter unit 21b and exits from the drying filter device 21. Part of the drying air is guided to the second filter portion 21c through the opening 21d.

  At that time, the drying air that could not pass through the first filter portion 21b once collides with the first filter portion 21b as shown in FIG. 8, and then forms a flow Y along the first filter portion 21b. . Therefore, if an opening 21d for guiding the drying air to the second filter portion 21c is provided adjacent to the side of the first filter portion 21b, it cannot pass through the first filter portion 21b. Thus, it is possible to create a state in which the drying air is guided to the second filter part 21c through the opening 21d along the first filter part 21b.

  Accordingly, it is possible to artificially generate a flow of drying air that guides the removed lint 27 to the second filter portion 21c along the first filter portion 21b from which the lint 27 is removed. As a result, in addition to the lint movement effect of the spiral lint collector 22a, more lint 27 is scraped off by the first filter portion 21b by the action of the drying air, and then the second filter portion is promptly used. 21c, and the re-capture of the lint 27 in the first filter portion 21b can be further prevented.

  In the present embodiment, the opening 21d is widely opened around the axis of the second end portion 28b of the lint collector 22a, but the present invention is not limited to this, and the first filter is used by the lint removing device rotating shaft 22e. If the portion 21b side is open, the effect of improving the transfer force of the lint 27 transferred in the vicinity of the filter is exhibited.

  The drive motor 24 and the drive motor rotation shaft 25 are located in the lower left direction of the lint removal device rotation shaft 22e when viewed from the viewpoint that the lint removal device rotation shaft 22e is on the right side of the drive motor rotation shaft 25, and the rotation direction thereof is Since the rotation is clockwise, the force that the lint removing device rotating shaft 22e receives from the drive motor 24 includes a vector component in the right direction.

  At this time, since the first filter portion 21b is arranged on the right hand side of the lint removing device 22, the force transmitted from the drive gear 26 to the dependent gear 22b is always applied from the lint removing device 22. Since the vector component in the direction of the first filter portion 21b is included, the lint collector 22a is urged toward the first mesh portion 21e in addition to the urging force by the wind, and the lint removal performance is further improved.

  In addition, since the control means 30 blows the drying air with a larger air flow rate during the driving of the lint removing device 22 than during the rated operation, the urging force of the lint collecting body 22a is also improved, and the internal air is more reliably The lint collection performance is ensured, and even a small amount of lint 27 can be peeled off from the first mesh portion 21e.

  When the degree of decrease in the air volume detected by the air volume detection means is large, it can be estimated that a lot of lint 27 is attached, and it is possible to scrape the lint even if the biasing force of the lint collector 22a is relatively small. Therefore, when the lint removing device 22 is driven under such an environment, it is possible to save energy by driving the lint removing device 22 with an air flow rate that is equal to or less than that during rated operation.

  As described above, the drying filter device 21 in the present embodiment has the introduction portion 21a for introducing the drying air and the substantially half disposed so as to be substantially orthogonal to the flow direction of the drying air from the introduction portion 21a. A cylindrical filter portion 21b, a slave gear 22b connected to a drive gear 26 rotated by a drive motor 24 provided in the main body 2, and a rotary gear 22b connected to the inner surface of the filter portion 21b. A lint collector 22a having a spiral shape that moves the lint captured by the filter portion 21b by the rotation of the lint collector 22a in the direction from the first end portion 28a to the second end portion 28b. The pitch of the spiral shape of 22a is made smaller on the second end portion 28b side than on the first end portion 28a side, and in the vicinity of the second end portion 28b of the lint collector 22a, the first end portion 28a. In the vicinity of the second end 28b, which is the terminal side of the lint transfer, even if the axial force on the lint is larger than the side and the lint is combined and enlarged during the transfer of the lint. Since the transfer force is large, it can be transferred reliably. Even if the amount of lint is large and the lint accommodation area 23 side is filled with lint and overflows to the lint collector 22a side, the lint accommodation area is compressed while compressing the lint because the axial transport force is large. 23, and a flow path for drying air can be secured. In addition, the drive motor 24 that drives the lint removing device 22 is difficult to lock, and safety can be improved.

(Embodiment 2)
FIG. 13: is principal part sectional drawing of the drying filter apparatus of the clothes dryer in the 2nd Embodiment of this invention. A feature of the present embodiment is that the first filter portion 21b is configured only in a region that can come into contact with the lint collector 22a. Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

  The dry filter device 21 configures the first filter portion 21b only in a region that can contact the spiral-shaped portion of the lint collector 22a, and the first filter portion 21b includes a first mesh portion 21e having a substantially semi-cylindrical shape. And the lint 27 contained in the drying air is captured by the drying filter device 21 when the drying air passes through the first mesh portion 21e. The lint storage area 23 is provided inside the dry filter device 21 adjacent to the lint collector 22a, and is configured on the second end 28b side where the lint scraped off by the lint collector 22a is pushed out. There is no mesh portion in the region 23.

  About the clothes dryer comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. Since no mesh portion is formed in the lint accommodation area 23, the drying air hardly flows in the direction of the lint accommodation area 23, and it is difficult to push the lint 27 collected by the flow of wind. Since the turbulence of the lint 27 is reduced and the pressure loss is minimized, and the helical pitch in the vicinity of the second end portion 28b is reduced, the transfer force of the lint 27 in the axial direction of the lint collector 22a is reduced. The lint 27 can be pushed into the lint receiving area 23 while being compressed without being locked. Moreover, since the mesh part is not comprised in the lint accommodation area | region 23, when collect | recovering the accumulated lint 27, lint separation is good and the cleaning property of the dry filter apparatus 21 improves.

(Embodiment 3)
FIG. 14: is principal part sectional drawing of the drying filter apparatus of the clothes dryer in the 3rd Embodiment of this invention. The feature of this embodiment is that the lint collecting body 22a is supported only on the first end portion 28a side, and the opening 21d is fully opened with respect to the entire circumferential direction of the lint collecting body 22a. Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

  A first bearing 21g is formed in the vicinity of the first end portion 28a of the lint removing device 22, and a bearing is not formed on the second end portion 28b side. Therefore, the opening 21d provided between the first filter portion 21b and the second filter portion 21c is fully open with respect to the entire circumferential direction of the lint collector 22a. That is, the opening 21d is opened in a circular shape that is substantially the same as the diameter of the spiral shape of the lint collector 22a.

  About the clothes dryer comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. In the case where the lint 27 accommodated on the second end portion 28b side of the lint collecting body 22a overflows from the lint accommodation region 23 after a plurality of continuous drying operations, on the second end portion 28b side, Since the pitch of the spiral shape is small and the transfer force of the lint in the axial direction of the lint collecting body 22a is relatively large, the lint 27 overflowing together with the transferred lint 27 is also compressed and moved to the lint accommodation region 23. And the drive motor 24 is difficult to lock, resulting in a safer configuration.

  In addition, since the opening 21d is fully open with respect to the entire circumferential direction of the lint collecting body 22a, the second end portion having a spiral shape is formed even when the lint 27 overflows from the inside of the lint accommodating region 23. 28b side can be uniformly compressed, and since the helical pitch is small on the second end portion 28b side, the axial force acting on the lint 27 is relatively large, so the lint 27 can be further compressed. More lint 27 can be accommodated in the lint accommodation area 23.

  In this embodiment, the lint removing device 22 is supported only by the first bearing 21g. However, the present invention is not limited to this, and a supporting portion is provided on the second end portion 28b side of the lint removing device 22. However, it is only necessary that the opening 21d is open with respect to the entire circumferential direction. For example, a predetermined interval may be taken from the first bearing 21g, the second bearing 21h may be formed in the vicinity thereof, and a spiral shape may be provided from the second bearing 21h to the second end portion 28b. By increasing the number of support portions in this manner, the support of the lint removal device 22 becomes stable, and the shaft shake between the first mesh portion 21e and the lint collection body 22a is minimized, and more stable lint removal is possible. It becomes.

  In this embodiment, the water-cooled heat exchanger 20 and the heating means 15 are used to dehumidify and heat the drying air. However, a general heat pump device may be used. In this case, the evaporator is the dehumidifying means and the condenser is the heating means.

  As described above, the clothes dryer according to the present invention is useful as a clothes dryer because it can smoothly and reliably transfer lint captured by the drying filter device and improve lint removal performance.

2 Body 4 Rotating drum 10 Motor 14 Blower (Blower unit)
16 Circulating air passage 21 Drying filter device 21a Introducing portion 21b First filter portion (filter portion)
21c 2nd filter part (filter part)
24 drive motor 26 drive gear 22b slave gear 22a lint collector 28a first end 28b second end

Claims (4)

A rotating drum that is rotatably provided in the body, a motor that rotationally drives the rotating drum, air blowing means that supplies drying air into the rotating drum, and drying air discharged from the rotating drum. A circulation air passage that circulates to the rotary drum via a blowing means, and a detachable drying filter device that is disposed in the circulation air passage and captures lint contained in the drying air, and the drying filter device comprises: An introduction portion for introducing drying air, a substantially semi-cylindrical filter portion disposed so as to be substantially orthogonal to the flow direction of the drying air from the introduction portion, and a drive motor provided in the main body A subordinate gear coupled to the rotating drive gear; and a helical lint collector coupled to the subordinate gear and rotating in contact with the inner surface of the filter portion. The lint captured by the filter unit is transferred from the first end side toward the second end, and the pitch of the spiral shape of the lint collecting body is set to the second end from the first end side. A clothes dryer with a smaller side. The clothes dryer according to claim 1, wherein the drying filter device forms a lint accommodation area in a direction in which the lint is pushed out from the second end. The clothes dryer according to claim 1 or 2, wherein the filter unit is configured only in a region where the filter unit can come into contact with the lint collector. The lint collector is supported only on the first end side, and the opening provided between the lint receiving area and the second end side of the lint collector is in the entire circumferential direction of the lint collector. The clothes dryer according to claim 2 or 3, wherein the clothes dryer is fully open.

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