JP6910024B2 - Filter cleaning device and dryer - Google Patents

Description

The present invention relates to a filter cleaning device for removing dust adhering to a filter, and a dryer provided with the filter cleaning device.

Conventionally, a filter for collecting dust is installed, and a filter cleaning device for removing dust adhering to the filter is known (Patent Document 1).

The filter cleaning device of Patent Document 1 includes a drying filter device that is arranged in a circulating air passage and captures lint contained in the drying air generated from the laundry, and this drying filter device introduces the drying air. A part, a first filter part for capturing lint from the drying air, a second filter part provided on the side of the first filter part, and a lint removing device were provided, and the lint was scraped off by the lint removing device. While moving the lint toward the second filter section, the lint removing device includes a scraping section for scraping the lint with the first filter section and a stirring section for stirring the lint with the second filter section. The position of the blade provided in the first filter unit when the operation is stopped is set to be substantially parallel to the flow direction of the drying air introduced into the first ventilation unit. As a result, it is possible to prevent the blade from obstructing the flow of the drying air and increasing the pressure loss, and it is also possible to reduce the aerodynamic resistance that the blade receives from the drying air when the operation of the blade is stopped. Was able to reduce the rotational torque required to start moving from the stopped state.

Japanese Unexamined Patent Publication No. 2012-143431

However, the filter cleaning device described in Patent Document 1 does not solve the conventional problem that dust such as lint adheres to and stays in the rotating shaft of the blade and in the vicinity of the rotating shaft.

The present invention solves the above-mentioned conventional problems, and provides a filter cleaning device capable of preventing dust from accumulating on a rotating shaft of a cleaning body for removing dust adhering to the filter body and in the vicinity of the rotating shaft. , It is an object of the present invention to provide a dryer equipped with this filter cleaning device.

In order to solve the above-mentioned conventional problems, the invention of the filter cleaning device according to claim 1 is a dust discharge port for discharging dust and a foundation provided in a direction substantially perpendicular to the opening surface of the dust discharge port. In the wall, a filter body provided at a position facing the dust discharge port across the foundation wall, a ventilation path provided on the upstream side of the filter body, and the ventilation path. A rotating shaft installed substantially parallel to the foundation wall, and a cleaning body provided on the rotating shaft and rotatably abutting the filter body to remove dust adhering to the filter body. It is in the ventilation path on the upstream side of the rotation shaft, and is in the vicinity of the rotation shaft , between the rotation shaft and the dust discharge port, and around the rotation shaft. rectifying plate to prevent the dust from staying is installed, part of the bottom surface of the rectifier plate is characterized in that than the shaft center of the pivot shaft is spaced apart from the foundation wall.

In the invention of claim 1, since a part of the bottom surface of the straightening vane is located at a position away from the center of the rotating shaft and the foundation wall, it becomes difficult for ventilation to flow into the gap between the rotating shaft and the foundation wall. Therefore, it is possible to prevent dust from accumulating around the rotating shaft.

The invention of the filter cleaning device of claim 2 has the dust discharge suppressing body which prevents the dust collected by the filter body from being discharged to the outside and is movable openable and closable in the invention of claim 1, and suppresses the dust discharge. It is characterized by having a rectifying plate installed on the body. Therefore, in addition to facilitating the cleaning of the inside of the filter cleaning device, when the dust discharge control body is configured to be openable and closable by a rotating shaft, the rectifying plate acts as a weight to easily open the dust discharge control body. be able to.

Invention of the filter cleaning apparatus according to claim 3 is the invention of claim 1 or 2, foundation wall or current plate, and said base wall, between the rectifying plate, and blocking unit is provided for blocking the ventilation It is characterized by being. Therefore, the blocking portion does not form a gap between the foundation wall and the straightening vane and does not allow ventilation from that portion, so that it is possible to reliably prevent dust from accumulating around the rotating shaft. can.

The invention of the filter cleaning device according to claim 4 is characterized in that, in any of the inventions of claims 1 to 3, the height in the direction away from the foundation wall of the straightening vane increases as it approaches the rotation axis. Therefore, the direction of ventilation can be formed in the direction away from the foundation wall and also in the direction away from the rotation shaft, so that it is possible to more reliably prevent dust from accumulating around the rotation shaft. can.

The invention of the dryer according to claim 5 is to circulate and supply warm air generated by a blowing means and a heating means into a rotating drum rotatably arranged in a tank and accommodating clothes and the like through a circulation duct. The filter cleaning device according to any one of claims 1 to 4 is provided on the exhaust side of the circulation duct from the tank body. Therefore, it is possible to provide a dryer provided with a filter cleaning device capable of preventing dust from accumulating around the rotating shaft.

The invention of the filter cleaning device according to claim 1 can prevent dust from accumulating around the rotating shaft. Further, the invention of claim 2 makes it easy to clean the inside of the filter cleaning device and can easily open the dust discharge suppressing body. Further, the inventions of claims 3 and 4 can surely prevent dust from accumulating around the rotating shaft.

Further, the invention of the dryer according to claim 5 can provide a dryer provided with a filter cleaning device capable of preventing dust from accumulating around the rotating shaft.

A perspective view showing a clothes dryer according to the present invention. Sectional drawing which shows the internal structure of the clothes dryer which concerns on this invention (A) A perspective view showing the appearance of the filter cleaning device of the first embodiment according to the present invention (b) A perspective view showing the internal structure of the filter cleaning device of the first embodiment according to the present invention. (A)-(c) Explanatory drawing which shows operation of the movable means which comprises the filter cleaning apparatus which concerns on this invention. Explanatory drawing which shows cleaning operation of the filter cleaning apparatus of 1st Embodiment which concerns on this invention. (A)-(d) Cross-sectional view showing another example of the straightening vane (A)-(c) Cross-sectional view showing another example of the straightening vane

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to this embodiment.

FIG. 1 is a perspective view showing a clothes dryer according to the present invention, and FIG. 2 is a cross-sectional view showing an internal structure of the clothes dryer. The clothes dryer according to the present invention will be described with reference to these figures. The clothes dryer 20 according to the present invention is provided with a door 20a on the front surface, is rotatably arranged in the tank body 20d, and is generated by a blowing means (fan) 23 and a heating means 22 in a rotating drum 20b for accommodating clothes and the like. The warm air is circulated and supplied through the circulation ducts 21a, 21b, 21c to make clothes dry, and a filter cleaning device 10 is installed on the exhaust side of the circulation ducts 21a, 21b, 21c from the tank body 20d. There is. Here, the filter cleaning device 10 is installed so that the upper surface 2c of the cleaning device main body is parallel to the upper surface 20e of the clothes dryer.

Reference numeral 20c is a motor for rotating the rotary drum 20b, and the motor 20c rotates the rotary drum 20b during various processes such as a drying process, a washing process, a rinsing process, and a dehydration process. Further, as an example, a heat exchanger can be used for the heating means 22. As the heat exchanger method, various methods such as a heat pump type and a heater type can be adopted. Further, the clothes dryer 20 is of a drum type, but the present invention is not limited to this, and various methods such as a vertical type can be adopted.

FIG. 3A is a perspective view showing the appearance of the filter cleaning device according to the first embodiment of the present invention, and FIG. 3B shows the present invention according to the cross section taken along the line AA of FIG. 3A. It is a perspective view which shows the internal structure of the filter cleaning apparatus of 1st Embodiment. A first embodiment of the filter cleaning device according to the present invention will be described below with reference to FIG.

The filter cleaning device 10 has a cleaning device main body 2 and a partially arcuate filter body 1 capable of collecting dust from ventilation. Further, the foundation wall 2b, the ventilation passage 5a provided on the upstream side of the filter body, the rotating shaft 3a installed in the ventilation passage 5a close to and substantially parallel to the foundation wall 2b, and dust on the side portion. A blade 3b on which a protrusion 3g for scraping up the blade 3g is formed, and a base 3c for rotating the blade 3b, which is movable (reciprocating rotation) along the filter body 1 and dust adhering to the filter body 1. Has a cleaning body 3 for removing the dust.

The length from one end 3f of the cleaning body 3 to the other end 3d of the cleaning body 3 is longer than the shortest distance from one end 3f of the cleaning body 3 to the filter surface 12 of the filter body 1. A support portion 3e is formed at the tip of the base 3c so as to abut on the rear side of the blade 3b with respect to the traveling direction of the cleaning body 3 on the outward route, and the blade 3b is bent or curved rearward in the traveling direction on the outward route. In this state, it comes into contact with the filter body 1. Further, although elastomer is used as the material of the blade 3b, the material is not limited to this, and rubber, soft resin, foamed resin, non-woven fabric, etc. may be used, or a composite material thereof may be used.

Further, the blade 3b is configured to be released from the bent or curved state (return to the initial state) by moving away from the filter body 1 in the vicinity of the end of the outward path. The filter cleaning device 10 configured in this way sets the length from one end 3f of the cleaning body 3 to the other end 3d of the cleaning body from one end 3f of the cleaning body 3 to the filter body 1. By making the distance longer than the shortest distance to the filter surface 12, the blade 3b comes into contact with the filter body 1 in a state of being bent or curved backward in the traveling direction on the outward path, so that the blade 3b is restored near the end of the outward path. The force can repel the dust and prevent the dust from remaining on the tip of the blade. Further, since the support portion 3e that abuts on the rear side in the traveling direction of the blade 3b on the outward path is formed, the effect that the blade 3b scrapes off the dust adhering to the filter body 1 can be enhanced.

Further, in FIG. 3B, the cleaning device main body 2 is provided with a recess 4 for accommodating the tip end portion of the blade 3b at the initial position of the cleaning body 3 in which the blade 3b is not in sliding contact with the filter body 1. As a result, the blade 3b does not slide up on the surface of the dust 9, and the protrusion 3g of the blade 3b comes into contact with one end of the dust laminated on the filter body and scrapes it up.

Further, the filter cleaning device 10 is provided with a dust discharge port 5 for discharging dust. The dust discharge port 5 is provided with a dust discharge control body 6 that prevents the dust collected by the filter body 1 from being discharged to the outside and can be opened and closed. The dust discharge suppressing body 6 includes long plates 6a and 6b installed in a grid pattern in order to prevent dust from being discharged to the outside. As a result, it is possible to prevent the dust from spilling when the user removes the filter cleaning device 10 from the clothes dryer 20 and carries it to a predetermined disposal place such as a trash can. Further, the dust discharge suppressing body 6 includes a straightening vane 6d. When the rotating shaft 3a is formed in the ventilation passage 5a, the rotating shaft 3a becomes an obstacle, the speed of the air flow decreases, and dust easily adheres to the rotating shaft 3a. When the foundation wall 2b and the rotation shaft 3a are installed close to each other as in the embodiment, the airflow passing through the gap between the foundation wall 2b and the rotation shaft 3a is most likely to stay. However, by installing the straightening vane 6d, it is possible to change the direction of the air flow and prevent dust from adhering to the rotating shaft 3a. Specifically, one side surface 30 of the straightening vane 6d is in the ventilation passage 5a on the upstream side of the rotating shaft 3a of the cleaning body 3, and is in the vicinity of the rotating shaft 3a. It is installed at a position away from the foundation wall 2b from the axis center of 3a. Then, the airflow is guided in a direction away from the foundation wall 2b to make it difficult for the airflow to flow into the gap between the foundation wall 2b and the rotation shaft 3a, and dust adheres and stays around the rotation shaft 3a. I'm preventing it.

Further, the filter cleaning device 10 is provided with a movable mechanism 7 for moving the dust discharge suppressing body 6 and connecting with the cleaning body 3 to move the cleaning body 3, and the movable mechanism 7 is the cleaning device main body. It is installed on one outer surface 2a of 2.

Next, the operation of the movable mechanism 7 constituting the filter cleaning device 10 according to the present invention will be described with reference to FIGS. 4 (a) to 4 (c). The movable mechanism 7 is formed on the operating lever 7a, the motion transmitting member 7b that transmits the motion transmitted from the operating lever 7a to the cleaning body 3 (see FIG. 3), and the dust discharge suppressing body 6, and is operated during the closing operation. It is provided with a pressing portion 6c for pushing the lever 7a, and by pushing the operating lever 7a, the cleaning body 3 cleans the filter body 1 (see FIG. 3) and at the same time opens the dust discharge suppressing body 6. When the dust discharge suppressing body 6 is closed, the pressing portion 6c pushes the operation lever 7a to return the cleaning body 3 to the initial position.

Further, the movable mechanism 7 is installed on one outer surface of the cleaning device main body 2, and the direction orthogonal to the longitudinal direction of the operation lever 7a and the thickness direction of the motion transmission member 7b is the outer surface of the cleaning device main body 2. It is installed so as to be parallel to 2a. The operating lever 7a can reciprocate in a direction orthogonal to the rotation shaft 3a of the cleaning body 3.

Specifically, the operation lever 7a has a rack gear, and the motion transmission member 7b has a spur gear, and the rotation center of the spur gear is formed so as to coincide with the rotation center of the rotation shaft 3a. Has been done. The motion transmission member 7b converts the linear motion transmitted from the operation lever 7a into a rotary motion, and the power transmitted to the spur gear rotates the cleaning body 3 through the rotary shaft 3a. By using a spur gear on the motion transmission member 7b to rotate the cleaning body 3 in this way, a stable cleaning operation can be realized only by forming the movable mechanism 7 on only one outer surface 2a. If the cleaning body 3 is cleaned by linear motion without using spur gears for the motion transmitting member 7b, it is necessary to support the cleaning body 3 with two outer surfaces sandwiching the cleaning body 3, and the movable mechanism 7 is complicated. Will be. Then, when the operating lever 7a is pushed to the left in the drawing from the initial position shown in FIG. 4A, the pressing portion 6c of the dust discharge suppressing body 6 in contact with the tip of the operating lever 7a is pushed to the left in the drawing. It is pushed by and rotates around the rotation shaft 8 to which one end of the dust discharge suppressing body 6 is connected, and the state shown in FIG. 4B is obtained.

Then, from the state shown in FIG. 4B, by rotating the dust discharge suppressing body 6 clockwise in the drawing, the pressing portion 6c shown in FIG. 4C comes into contact with the tip of the operation lever 7a. Further, the pressing portion 6c returns to the initial position shown in FIG. 4A by pushing the operation lever 7a. A straightening vane 6d is installed on the dust discharge suppressing body 6. As a result, the inside of the filter cleaning device 10 can be easily cleaned, and in a configuration in which the dust discharge suppressing body 6 can be opened and closed by the rotating shaft 8, the rectifying plate 6d serves as a weight to facilitate the opening operation of the dust discharge suppressing body 6. Can be done.

FIG. 5 shows a cleaning operation of the filter cleaning device of the first embodiment on the outward route. At the initial position on the outward route, the blade 3b of the cleaning body 3 is housed in the recess 4. Then, by rotating the cleaning body 3 clockwise in the drawing, the blade 3b moves from the recess 4 and comes into contact with the filter body 1. When the blade 3b is housed in the recess 4, the movable mechanism 7 is in the state shown in FIG. 4A, and the cleaning body 3 rotates as the operation lever 7a is pushed to the left side in the drawing to push the filter body 1. to clean.

The blade 3b in contact with the filter body 1 is in a state of being bent or curved rearward with respect to the traveling direction. Then, by moving away from the filter body 1 near the end of the outward path, the blade 3b is released from the bent or curved state, and the dust 9 is ejected from the dust discharge port 5 to the outside. At this time, the movable mechanism 7 is in the state shown in FIG. 4B, and the dust discharge suppressing body 6 is open. With this configuration, when the user disposes of dust in a predetermined disposal location such as a trash can, the restoring force of the blade 3b repels the dust, so that the dust can be reliably transferred to the disposal location.

In the first embodiment, the upper surface 2c of the cleaning device main body is installed so as to be parallel to the upper surface 20e of the clothes dryer (see FIG. 1), but the foundation wall 2b and cleaning are performed on the side surface and the bottom surface of the filter cleaning device 10. The rotation shaft 3a of the body 3 may be installed, which is also included in the present invention. For example, when it is installed on the side surface, the longitudinal direction of the rotation shaft 3a and the plane of the foundation wall 2b are installed so as to be orthogonal to the upper surface 2c of the cleaning device main body, and the filter body 1 is installed on the other side surface facing the foundation wall 2b. Install in. That is, each member other than the upper surface 2c of the cleaning device main body of the filter cleaning device 10 of the first embodiment is rotated by 90 ° clockwise when viewed from the dust discharge port 5 side. When the foundation wall 2b and the rotation shaft 3a of the cleaning body 3 are installed on the bottom surface, the longitudinal direction of the rotation shaft 3a and the plane of the foundation wall are installed so as to be the bottom surface facing the upper surface 2c of the cleaning device main body. Will be done.

6 (a) to 6 (d) are cross-sectional views showing another example of the straightening vane. Like the cleaning body, the straightening vane is formed so as to span from one side surface of the filter cleaning device to the other side surface, and the straightening vane 25 shown in FIG. 6A has a gap between it and the foundation wall 24. 28 is formed. In this case as well, the straightening vane 25 is in the ventilation path on the upstream side of the rotating shaft 26 of the cleaning body, is in the vicinity of the rotating shaft 26, and is based on the shaft center 26a of the rotating shaft 26. Since it is installed at a position away from the wall 24, the airflow indicated by the arrow is guided in the direction away from the foundation wall 24 to make it difficult for the airflow to flow into the gap between the foundation wall 24 and the rotation shaft 26a. It is possible to prevent dust from adhering to and staying around the moving shaft 26. The straightening vane 25 is included in the present invention if a part of the straightening vane 25 is located at a position away from the foundation wall 24 with respect to the shaft center 26a of the rotating shaft 26. Further, the present invention includes the position closest to the cleaning body of the straightening vane 25 even if it is not the position closest to the foundation wall 24.

The straightening vane 25a shown in FIG. 6B is an example in which a blocking portion 27 in contact with a part of the straightening vane 25a is provided on the foundation wall 24a side, and the straightening vane 25b shown in FIG. This is an example in which a blocking portion 27a that comes into contact with a part of the foundation wall 24b is provided on the rectifying plate 25b side. Further, the straightening vane 25c shown in FIG. 6D is an example of being integrated with the foundation wall 24c by the blocking portion 27b. The blocking portions 27, 27a, 27b are formed on the upstream side of the straightening vane so as to bridge from one side surface of the filter cleaning device to the other side surface, similarly to the straightening vane and the cleaning body. Further, the bottom surfaces 30a, 30b, and 30c of the straightening vanes 25a, 25b, and 25c are parallel to the planes of the foundation walls 24a, 24b, and 24c, respectively, but the axis of the rotating shaft 26 of the cleaning body. Since the position is farther from the center 26a and the respective foundation walls 24a, 24b, and 24c, the flow of the airflow is difficult to reach the foundation wall side as shown by the arrow. With this configuration, it is difficult for the airflow to flow into the gap 29 between the foundation wall 24 and the rotating shaft 26, and dust is prevented from adhering and staying around the rotating shaft 26.

7 (a) to 7 (c) are cross-sectional views showing still another example of the straightening vane. The straightening vane 25d shown in FIG. 7A is integrated with the foundation wall 24d, and the height of the straightening vane 25d in the direction away from the foundation wall 24d increases as it approaches the rotation shaft 26. Further, the straightening vane 25d is formed up to a position exceeding the rotation shaft 26 of the cleaning body. As a result, the direction of ventilation can be formed in the direction away from the foundation wall 24d and also in the direction away from the rotation shaft 26. Therefore, when the rotation shaft 26 and the straightening vane 25d are slightly separated from each other. However, it is possible to prevent dust from accumulating around the rotating shaft 26. Further, since the straightening vane 25d is formed to a position exceeding the rotating shaft 26, it becomes difficult for ventilation to hit not only the gap 29 between the straightening vane 25d and the rotating shaft 26 but also the entire rotating shaft. It is possible to prevent the adhesion of dust.

Further, the straightening vane 25e shown in FIG. 7B is integrated with the foundation wall 24e, and the height of the straightening vane 25e in the direction away from the foundation wall 24e becomes smaller as it approaches the rotation shaft 26. .. Further, the bottom surface 30e of the straightening vane 25e is formed up to a position exceeding the rotation shaft 26 of the cleaning body. This makes it possible to prevent dust from accumulating around the rotating shaft 26. In addition, in the example of the rectifying plate of FIGS. The suppressor may be provided without being integrated with the straightening vane, which is also included in the present invention.

The bottom surface 30f of the straightening vane 25f shown in FIG. 7C is an example in which the bottom surface 30g of the dust discharge suppressing body 31 and the bottom surface 30h of the rotating shaft 26 are installed so as to be substantially flush with each other. With this configuration, the airflow becomes linear as indicated by the arrow, so that the air passage resistance is reduced and the noise is also reduced. The straightening vane 25f may be integrated with the dust discharge suppressing body 31, but may be formed so as to be separated and bridged from one side surface of the filter cleaning device to the other side surface. Further, when the dust discharge suppressing body 31 is not provided and the straightening vane 25f and the bottom surfaces 30f and 30h of the rotating shaft 26 are installed so as to be substantially flush with each other, or when the gap 28 between the straightening vane 25f and the foundation wall 24f is provided. Even if it is not provided, the same effect can be obtained.

The filter cleaning device according to the present invention is used to remove dust adhering to the filter. Further, the dryer according to the present invention is used as a dryer provided with a filter cleaning device.

1 Filter body 2 Cleaning device body 2a Outer side surface 2b Foundation wall 2c Cleaning device body top surface 3 Cleaning body 3a Rotating shaft 3b Blade 3c Base 3d Other end of cleaning body 3e Support part 3f One end of cleaning body 3g Protrusion 4 Recess 5 Dust discharge port 5a Ventilation passage 6, 31 Dust discharge suppression body 6a, 6b Long plate 6c Pressing part 6d rectifying plate 7 Movable mechanism 7a Operation lever 7b Motion transmission member 8 Rotating shaft 9 Dust 10 Filter cleaning device 12 Filter Surface 20 Clothes dryer 20a Door 20b Rotating drum 20c Motor 20d Tank body 20e Clothes dryer top surface 21a, 21b, 21c Circulation duct 22 Heating means 23 Blower means (fan)
27 Block

Claims (5)

The filter cleaning device is
A dust outlet for discharging dust,
A foundation wall provided substantially perpendicular to the opening surface of the dust discharge port, and
A filter body for collecting dust provided at a position facing the dust discharge port across the foundation wall, and a filter body.
The ventilation passage provided on the upstream side of the filter body and
A rotation shaft installed in the ventilation path substantially parallel to the foundation wall,
It is provided on the rotating shaft, and has a cleaning body that rotatably contacts the filter body and removes dust adhering to the filter body.
Dust is generated around the rotating shaft between the rotating shaft and the dust discharge port in the ventilation path on the upstream side of the rotating shaft and in the vicinity of the rotating shaft. A rectifying plate is installed to prevent it from staying ,
The part of the bottom surface of the rectifying plate, a filter cleaning device, characterized in that than the shaft center of the pivot shaft is spaced apart from the base wall. It has a dust discharge control body that can be opened and closed while preventing the dust collected on the filter body from being discharged to the outside.
The filter cleaning device according to claim 1, wherein a straightening vane is installed on the dust discharge suppressing body. Foundation wall or current plate, and said base wall, said between current plate, filter cleaning apparatus according to claim 1 or 2, characterized in that the blocking unit for blocking the ventilation is provided. The filter cleaning device according to any one of claims 1 to 3, wherein the height in the direction away from the foundation wall of the straightening vane increases as it approaches the rotation axis. Warm air generated by the air blowing means and the heating means is circulated and supplied to the rotating drum rotatably arranged in the tank and accommodating the clothes and the like through the circulation duct so that the clothes and the like can be dried and the circulation duct can be dried. The dryer according to any one of claims 1 to 4, wherein the filter cleaning device according to any one of claims 1 to 4 is provided on the exhaust side from the tank body.

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