JP6043945B2 - Clothes dryer - Google Patents

Description

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

  A conventional clothes dryer has a filter unit that captures lint contained in drying air generated from laundry, a lint collection unit that collects lint captured by the filter unit, and a lint captured by the filter unit. And a discharge means for discharging to the lint collection part (for example, see Patent Document 1).

  FIG. 11 is a cross-sectional view of a main part of a conventional clothes dryer. The filter unit includes a substantially semi-cylindrical filter 101 that is substantially orthogonal to the blowing direction of the drying air circulating through the air passage 108. The discharging means is composed of a helical wire 102 that rotates inscribed in the substantially semi-cylindrical filter 101. A part of the drying air passes through the lint collection box 103 provided in the lint collection unit 100, the bypass filter 104, the frame 105 containing the lint collection box 103, the opening 106 of the frame 105, and the communication passage 107. Then, it flows into the air passage 108 on the downstream side of the filter section.

  In this way, a part of the air circulating in the air passage 108 flows to the air passage 108 on the downstream side of the filter portion through the lint collecting unit 100, whereby a part of the drying air flowing through the air passage 108 is bypassed and lint. It flows through the collection unit 100 to the downstream side of the substantially semi-cylindrical filter 101 unit. This flow of air compresses the lint collected in the lint collection unit 100 and can reduce the amount of lump. Therefore, the amount of lint stored in the lint collection unit 100 increases, and the number of times that lint is discarded can be greatly reduced. it can. Further, since the lint accumulates in a compressed form, when the lid 109 is removed and the lint collection box 103 is taken out and the lint is discarded, there is no concern that the lint will be scattered during disposal and soil the floor.

JP 2008-6044 A

  However, in the conventional configuration, there is no improvement with respect to the attachment / detachment of the filter part, which is necessary particularly when the filter part is clogged or foreign matter is mixed. That is, when a rotational driving force is applied to the spiral wire 102, a reaction force acts on the spiral wire 102, and there is a problem that the filter unit may come out of the clothes dryer main body.

  SUMMARY OF THE INVENTION The present invention solves the conventional problems, and provides a clothes dryer capable of sufficiently transmitting motor torque for removing lint to a lint removing device for a dry filter while preventing filter lifting. Objective.

In order to solve the above-described conventional problems, a clothes dryer according to the present invention includes a drum for storing laundry, a circulation wind tunnel for circulating the drying air discharged from the drum into the drum again, and the circulation wind tunnel. A blower for blowing air to the drum, and a drying filter device that is detachably disposed in the circulation wind tunnel and captures lint contained in drying air generated from laundry, the drying filter device comprising: A lint removing device that scrapes the lint, and the lint removing device is provided with a removing device rotating shaft, a removing device gear, and a lint scraping portion, and a main body motor that drives the lint removing device and a main body motor rotation A motor gear attached to the shaft is provided in the clothes dryer main body, the removal device rotation shaft is installed in parallel with the main body motor rotation shaft, and the drying fan The attachment direction of the filter device is orthogonal to the removal device rotation shaft and the body motor rotation shaft, and the body motor rotation shaft and the removal device rotation shaft are attached to the attachment / detachment direction of the drying filter device. The motor gear is provided so that the line segment connecting the two has an oblique position with a predetermined angle, and the lint removing device is driven from the motor gear of the main body motor provided in the clothes dryer main body to the lint removing device. Rotation drive is transmitted to the removal device gear provided, and when the lint removal device is driven, the teeth contacting the motor gear and the removal device gear move to the attachment direction side of the dry filter device. Thus, the motor gear rotates.

  With such a configuration, the external force applied from the motor to the lint removing device at the time of lint removal does not always include a component in the direction in which the drying filter device is pulled out, so that it is difficult to pull out from the clothes dryer main body. Since the dry filter device is not misaligned, it is difficult for the motor gear and the removal device gear to be disengaged, and the rotation drive received from the motor during lint removal is well received via the removal device gear to reliably remove lint. be able to.

  The external force applied from the motor to the lint removing device during lint removal does not always include a component in the direction in which the drying filter device is removed, so that it is difficult for the lint removal device to come out of the clothes dryer body, and lint removal can be performed reliably.

Sectional drawing of the clothes dryer in Embodiment 1 of this invention External view of the clothes dryer Perspective view of the drying filter device of the clothes dryer Front perspective view of the drying filter device of the clothes dryer Front view of the drying filter device of the clothes dryer Rear view of the drying filter device of the clothes dryer Time series diagram of the clothes dryer when the drying filter is installed Side view of the drying filter device of the clothes dryer AA sectional view of the clothes dryer Enlarged view of B in Fig. 9 of the clothes dryer Sectional view of the main parts of a conventional clothes dryer

The first invention includes a drum for storing laundry, a circulation wind tunnel for circulating the drying air discharged from the drum again into the drum, a blower for blowing air to the drum through the circulation wind tunnel, A drying filter device that is detachably disposed in the circulation wind tunnel and captures lint contained in drying air generated from the laundry, and the drying filter device has a lint removal device that scrapes the lint. The lint removing device includes a removing device rotating shaft, a removing device gear, and a lint scraping portion, and a body motor that drives the lint removing device and a motor gear attached to the body motor rotating shaft include a clothes dryer body. The removing device rotating shaft is installed so as to be parallel to the main body motor rotating shaft, and the attachment direction of the drying filter device and the removing device A rotation axis and the main body motor rotation axis are orthogonal to each other, and a line segment connecting the main body motor rotation axis and the removal device rotation axis has a predetermined angle with respect to the attachment / detachment direction of the drying filter device. The lint removal device is driven to rotate from the motor gear of the main body motor provided in the clothes dryer main body to the removal device gear provided in the lint removal device. The motor gear rotates so that the teeth contacting the motor gear and the removal device gear move toward the attachment direction of the dry filter device when the lint removal device is driven. is there.

  As a result, the lint removal can be automatically performed by the clothes dryer, so that maintenance work can be greatly reduced, and convenience is enhanced. Further, since the external force applied from the motor to the lint removing device does not always include a component in the direction in which the dry filter device is pulled out, the dry filter device is not pulled out, and the motor gear and the removing device gear are not easily displaced due to misalignment. Therefore, the rotational drive received from the motor at the time of lint removal can be satisfactorily received via the removal device gear, and lint removal can be reliably performed. In addition, since the motor gear is disposed laterally offset from the mounting direction of the dry filter device, when the removal device gear and the motor gear are to be mounted at a position where they do not mesh with each other, the removal of the filter insertion in the tangential direction to the removal device gear is performed. When the force is applied, the removing device gear is mounted so as to mesh with the motor gear while rotating. Therefore, the filter can be mounted smoothly without fear of being damaged due to further mounting force while the gears collide with each other when the filter is mounted.

A second aspect of the invention is drying the filter device of the first invention comprises a first mesh portion and a second mesh portion comprising a substantially cylindrical, if the lint removing apparatus along said first mesh portion A lint scraping part having a spiral shape is provided. As a result, the lint scraping part applies the radial and thrust forces of the mesh to the lint on the mesh when the spiral mesh facing part scrapes the lint. Since it moves in the direction along, it can prevent that the lint which scraped off is poured into the air for drying, and it adheres to a mesh again.

A third invention is, in particular, drying the filter apparatus of the first aspect of the invention captures an introducing portion for introducing the drying air, the lint by the first mesh portion from the drying air adjacent the inlet portion a first filter unit, provided on a side of said first filter portion and a second of the second filter portion having a mesh portion, scraping in the first filter portion by the lint removing device The lint taken is moved toward the second filter section . As a result, the first filter part into which the drying air is first introduced via the introduction part becomes the main ventilation part of the drying filter device. Moreover, it can be made excellent in the ventilation of the drying air which is always without lint. The second filter portion can be used as a ventilation portion when lint is not deposited, and can be used as a lint storage portion when lint is accumulated. Further, when a large amount of lint is accumulated on the second filter unit, it is necessary to remove the lint by removing the dry filter device. However, the lint is not attached to the first filter unit, which is the main ventilation unit of the dry filter device. Since the accumulated second filter part can be integrated and detached, the lint of the second filter part can be removed and at the same time the first filter part can be checked for clogging and foreign matter contamination. Increase.

  According to a fourth aspect of the present invention, in particular, the lint removing device according to the third aspect of the present invention includes a scraping portion provided with a pressure contact portion that is in pressure contact with the first filter portion. As a result, the scraping force of the lint removing device is effectively transmitted to the lint at the pressure contact portion, and the lint can be scraped off.

  In the fifth aspect of the invention, in particular, the lint removing device of the fourth aspect of the invention is configured such that the press contact portion is formed of a flexible body. Thereby, even when the deflection of the mesh or the shakiness of the rotating shaft of the removing device occurs, the scraping portion can press the first filter portion uniformly, so that lint scraping performance can be ensured. .

  In the sixth invention, in particular, the dry filter device according to any one of the third to fifth inventions is provided with an opening that is adjacent to the side of the first filter part and communicates with the second filter part. Is. Since normal pressure loss occurs in the filter unit, not all drying air passes through the first filter unit and exits the drying filter device, and the remaining drying air passes through the opening through the first part. 2 to the filter part. At that time, the drying air that could not pass through the first filter unit once collides with the first filter unit, and then forms a flow along the first filter unit. Therefore, if an opening for guiding the drying air to the second filter part is provided adjacent to the side of the first filter part, the drying air that could not pass through the first filter part. However, it is possible to create a state of being guided to the second filter part through the opening part along the first filter part. As a result, a flow can be artificially generated along the first filter part from which the lint is removed, leading the removed lint to the second filter part. After being scraped off by the filter unit, it can be quickly moved to the second filter unit, and re-capture at the first filter unit can be further prevented.

  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)
1 is a cross-sectional view of a clothes dryer according to Embodiment 1 of the present invention, FIG. 2 is an external view of the clothes dryer according to Embodiment 1 of the present invention, and FIG. 3 is according to Embodiment 1 of the present invention. FIG. 4 is a front perspective view of the drying filter device of the clothes dryer according to the first embodiment of the present invention, and FIG. 5 is a clothes drying device according to the first embodiment of the present invention. FIG. 6 is a rear view of the drying filter device of the clothes dryer according to the first embodiment of the present invention, and FIG. 7 is a drying filter of the clothes dryer according to the first embodiment of the present invention. FIG. 8 is a side view of the drying filter device of the clothes dryer according to Embodiment 1 of the present invention, and FIG. 9 is the view of FIG. 8 of the clothes dryer according to Embodiment 1 of the present invention. AA sectional view, FIG. A B enlarged view in FIG. 9 of the clothes dryer in the form of 1.

  In FIG. 1, an outer tub 1 is elastically supported by a plurality of suspension mechanisms 3 inside a housing 2 of a clothes dryer. The drum 4 has an input 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 drum 4 is rotatably supported by the drum rotation shaft 11 and stores the laundry 5. A plurality of through holes 8 are provided in the peripheral wall 7 of the drum 4. A stirring baffle 9 for efficiently lifting the laundry 5 is provided on the peripheral wall 7 in the drum 4. The outer tub 1, the drum 4, and the drum rotation shaft 11 are disposed to be inclined upward by an angle θ (for example, 20 °) with respect to the horizontal.

  Driving means 10 is provided outside the outer tub 1, and the drum 4 rotates forward and backward by driving of the driving means 10. On the front surface of the housing 2, there are provided a substantially circular slot 6 for taking in and out the laundry 5 and a door 12 for opening and closing it. The opening of the outer tub 1 facing the inlet 6 is connected to the housing 2 by a packing 13 while ensuring an airtight structure.

  A blower 14 that supplies drying air to the drum 4 is provided at a substantially upper portion of the housing 2. 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 heating means 15 is provided on the downstream side of the blower 14. The blower 14 and the heating means 15 are provided in the circulation wind tunnel 16. The downstream side of the circulation wind tunnel 16 communicates with an air supply port 17 provided at the bottom of the inner cylinder of the outer tub 1, and the upstream side communicates with an exhaust port 18 provided on the peripheral wall 7 of the outer tub 1.

  After passing through the heating means 15, the drying air passes through the air supply port 17 and arrives inside the drum 4. The drying air discharged from the drum 4 circulates through the exhaust port 18, the circulation wind tunnel 16, the blower 14, the air supply port 17, and the drum 4. The above-described flow of drying air (indicated by an arrow in FIG. 1) is configured as a circulating air path 16a.

  The circulation wind tunnel 16 is provided with a cooling water supply port 19 for supplying cooling water to dehumidify the drying air, a heat exchanger 20, and a drying filter device 21. The drying air that has become wet due to contact with the laundry 5 is cooled by the heat exchanger 20 and dehumidified. The cooling water and the dehumidified water are discharged out of the housing 2. The drying filter device 21 is provided upstream of the blower 14 and captures lint contained in the drying air generated from the laundry 5, thereby preventing problems caused by lint accumulation in the blower 14.

  As shown in FIGS. 4 to 6 and 9, the drying filter device 21 includes an introduction part 21 a that introduces drying air, and a first filter part 21 b that captures lint from the drying air introduced from the introduction part 21 a. The second filter part 21c, the opening part 21d for guiding the remaining drying air that has not passed through the first filter part to the second filter part, and the lint removing device 22 are provided. An opening 21d is provided adjacent to the side of the first filter portion 21b.

  As shown in FIGS. 4 and 5, each of the first filter portion 21b and the second filter portion 21c includes a first mesh portion 21e and a second mesh portion 21f each having a substantially cylindrical shape. When the drying air passes through the first mesh portion 21e and the second mesh portion 21f, the 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 is provided with a lint scraping portion 23 having a spiral shape along the first mesh portion 21e. As shown in FIG. 10, the tip of the lint scraping part 23 in the circumferential direction is made of a flexible elastomer and serves as a pressure contact part 23a that is in pressure contact with the first filter part 21b. As a result, the lint scraping portion 23 applies a force in the radial direction and the thrust direction of the mesh to the lint on the mesh when the helical contact portion 23a scrapes the lint, so that the lint is removed while being scraped off. Since it moves to the direction Z along the rotating shaft 23b, scraped lint can be prevented from flowing into the drying air and reattaching to the mesh. In addition, since the lint scraping portion 23 is provided with the pressure contact portion 23a that is in pressure contact with the first filter portion 21b, the scraping force of the lint removing device 22 is effectively transmitted to the lint in the pressure contact portion 23a to scrape the lint. Can be taken. Since the pressure contact portion 23a is made of a flexible body, the lint scraping portion 23 is uniformly formed by the first filter portion even when the first mesh portion 21e is bent or the removal device rotating shaft 23b is rattled. Since 21b can be press-contacted, lint scraping performance can be ensured.

  As shown in FIG. 2, the dry filter device 21 is provided so as to be detachable from the clothes dryer main body in the X direction. As shown in FIG. 3, the clothes dryer main body is provided with a main body motor 24 for driving the lint removing device 22 and a motor gear 26 attached to the tip of the main body motor rotating shaft 25. When the drying filter device 21 is attached to the clothes dryer main body, the removing device rotating shaft 23 b provided as the rotating shaft of the lint scraping portion 23 is installed so as to be parallel to the main body motor rotating shaft 25. Furthermore, as shown in FIG. 8, with respect to the attachment / detachment direction X of the dry filter device 21, the line segment connecting the main body motor rotation shaft 25 and the removal device rotation shaft 23b is at an oblique position with a predetermined angle. A motor gear 26 is provided. A removal device gear 22a is provided at the tip of the removal device rotation shaft 23b. When the drying filter device 21 is mounted on the clothes dryer main body, the rotation of the main body motor 24 is lint linked with the motor gear 26. Tell the removal device 22. At the time of lint removal, the motor gear 26 rotates (rotates clockwise in FIG. 8) so that the teeth contacting the motor gear 26 and the removal device gear 22a move in the direction P in which the dry filter device 21 is attached.

  That is, at the time of lint removal, the direction of the contact between the motor gear 26 and the removal device gear 22a includes a vector component toward the side where the motor gear 26 is provided with respect to the removal device gear 22a.

  About the clothes dryer comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  In the drying process, the drum 4 rotates while holding the wet laundry 5 inside. The drying air is blown by the blower 14, passes through the heating means 15, passes through the air supply port 17 in order, and reaches the inside of the drum 4. The drying air arriving at the drum 4 comes into contact with the wet laundry 5 and dries the laundry 5, and then exits the drum 4 through the through-hole 8 while containing lint generated from the laundry 5. The outer tank 1 exits from the exhaust port 18 provided in the tank 1. The drying air that has exited the outer tub 1 passes through the circulating air path 16a, is dehumidified by the cooling water in the heat exchanger 20, and is then lint from the drying air by the drying filter device 21 before reaching the blower 14. Is removed.

  The drying air is introduced into the drying filter device 21 through the introducing portion 21a. The first filter portion 21b introduced first can be a main ventilation portion of the drying filter device 21 and can be excellent in ventilation of drying air that is always free of lint. The second filter portion 21c functions as a ventilation portion when no lint is accumulated. When lint accumulates, the lint scraped off by the lint removing device 22 can be moved toward the second filter portion 21c to form a lint reservoir.

  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. The remaining drying air is guided to the second filter portion 21c through the opening portion 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, and then forms a flow Y along the first filter portion 21b (FIG. 4). 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 portion 21c through the opening 21d along the first filter portion 21b. Accordingly, it is possible to artificially generate a flow of drying air that guides the removed lint to the second filter portion 21c along the first filter portion 21b from which the lint is removed. As a result, in addition to the lint movement effect of the spiral lint scraping portion 23, more lint 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. It can move to 21c, and recapture by the 1st filter part 21b can be prevented more.

  Further, when a large amount of lint is accumulated on the second filter portion 21c, it is necessary to remove the lint by removing the dry filter device 21. At this time, the first filter part 21b, which is the main ventilation part of the dry filter device 21, and the second filter part 21c on which lint accumulates can be integrated and detached, so that the lint of the second filter part 21c can be removed. Simultaneously with the removal, the first filter portion 21b can be checked for clogging or contamination. With such a configuration, it can be made easy to use.

  When the dry filter device 21 is attached, the removal device gear 22a is mounted so as to mesh with the motor gear 26 while rotating. This is because the positional relationship between the motor gear 26 and the removing device gear 22a is such that a line segment connecting the main body motor rotating shaft 25 and the removing device rotating shaft 23b has a predetermined angle with respect to the attaching / detaching direction X of the drying filter device 21. This is because they are arranged so as to be in an oblique position. When the removal device gear 22a and the motor gear 26 are to be mounted at positions where they do not mesh with each other, a filter insertion reaction force acts on the removal device gear 22a in the tangential direction at the contact 22b where the removal device gear 22a and the motor gear 26 are in contact with each other. The filter can be mounted smoothly without the risk of damage due to additional mounting force with the gears colliding with each other.

  Further, since the rotation direction of the main body motor 24 at the time of lint removal does not include a component in the direction in which the dry filter device 21 is removed, the dry filter device 21 causes a displacement of the engagement between the motor gear 26 and the removal device gear 22a due to a positional shift. In addition, the rotational drive received from the main body motor 24 during lint removal can be satisfactorily received via the removal device gear 22a, and lint removal can be performed reliably.

  As described above, the lint scraping unit 23 of the lint removing device 22 automatically performs lint removal through the driving of the body motor 24 of the clothes dryer main body, so that maintenance work can be greatly reduced and convenience is improved. Will increase. In addition, when a mechanism for preventing the filter portion from coming off is added to overcome the reaction force acting on the spiral wire rod 102, the mechanism becomes complicated. With the above configuration, the dry filter device can be constructed with a simple mechanism. 21 can be made difficult to escape. Furthermore, it is possible to provide a detachable dry filter device 21 that ensures reliability against repeated attachment and detachment of the filter.

  In the present invention, since the presence or absence of the washing function is irrelevant, the same effect can be obtained with the same configuration in the washing / drying machine having the washing function.

  As described above, the clothes dryer according to the present invention eliminates the pressure loss due to the lint capture of the drying filter before the drying time starts to increase sharply, thereby suppressing the lengthening of drying, and It is useful as a dryer excellent in driving durability and a washing dryer.

DESCRIPTION OF SYMBOLS 1 Outer tub 2 Housing | casing 3 Suspension mechanism 4 Drum 5 Laundry 6 Input port 7 Peripheral wall 8 Through hole 9 Stirring baffle 10 Driving means 11 Drum rotation shaft 12 Door 13 Packing 14 Blower 14a Fan motor 14b Motor current measuring device 15 Heating means 16 Circulating wind tunnel 16a Circulating air path 17 Air supply port 18 Exhaust port 19 Cooling water supply port 20 Heat exchanger 21 Drying filter device 21a Introducing portion 21b First filter portion 21c Second filter portion 21d Opening portion 21e First mesh portion 21f Second mesh portion 22 Lint removal device 22a Removal device gear 22b Contact 23 Lint scraping portion 23a Pressure contact portion 23b Removal device rotation shaft 24 Main motor 25 Main motor rotation shaft 26 Motor gear

Claims (6)

A drum for storing laundry;
A circulation wind tunnel for circulating the drying air discharged from the drum into the drum again;
A blower for blowing air to the drum through the circulation wind tunnel;
A drying filter device that is detachably disposed in the circulation wind tunnel and captures lint contained in drying air generated from the laundry,
The dry filter device has a lint removing device for scraping the lint,
The lint removing device is provided with a removing device rotating shaft, a removing device gear, and a lint scraping portion,
A main body motor for driving the lint removing device and a motor gear attached to the main body motor rotating shaft are provided in the clothes dryer main body,
The removal device rotation shaft is installed to be parallel to the main body motor rotation shaft,
The attachment direction of the dry filter device is orthogonal to the removal device rotation shaft and the main body motor rotation shaft, and the main body motor rotation shaft and the removal device are attached to the attachment / detachment direction of the dry filter device. The motor gear is provided so that the line segment connecting the rotation axes has an oblique position with a predetermined angle,
The lint removing device is driven by a rotational drive transmitted from a motor gear of a main body motor provided in the clothes dryer main body to a removing device gear provided in the lint removing device. A clothes dryer in which the motor gear rotates so that, when driven, the teeth contacting the motor gear and the removal device gear move to the attachment direction side of the drying filter device. The dry filter device includes a first mesh portion and a second mesh portion having a substantially cylindrical shape,
The clothes dryer according to claim 1, wherein the lint removing device includes a lint scraping part having a spiral shape along the first mesh part. The drying filter device includes: an introduction unit that introduces drying air; a first filter unit that captures lint from the drying air by the first mesh unit adjacent to the introduction unit; and the first filter A second filter part provided on the side of the part and provided with the second mesh part,
The clothes dryer according to claim 2, wherein the lint scraped off by the first filter unit by the lint removing device is moved toward the second filter unit. 4. The clothes dryer according to claim 3, wherein the lint removing device includes a pressure contact portion that is in pressure contact with the first filter portion in the scraping portion. The said lint removal apparatus is the clothes dryer of Claim 4 which comprised the said press-contact part with the flexible body. The clothes drying machine according to any one of claims 3 to 5, wherein the drying filter device is provided with an opening that is adjacent to a side of the first filter part and communicates with the second filter part.

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