CN106662360B - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN106662360B CN106662360B CN201680001717.5A CN201680001717A CN106662360B CN 106662360 B CN106662360 B CN 106662360B CN 201680001717 A CN201680001717 A CN 201680001717A CN 106662360 B CN106662360 B CN 106662360B
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- Prior art keywords
- dust
- dust collecting
- air conditioner
- air
- discharge passage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
Abstract
An air conditioner according to the present invention is an air conditioner having a filter cleaning function of automatically cleaning dust adhering to an air filter built in an indoor unit, and includes: a brush for removing dust attached to the air filter; a blade for scraping off the dust attached to the brush; and a dust collecting portion for receiving the dust scraped off by the blade. The air conditioner further includes: a dust collecting part disposed below the dust collecting part; a rotating device which rotates the dust collecting part from an upward posture to a downward posture so as to recover the dust received by the dust collecting part to the dust recovering part; and a discharge device for discharging the dust collected in the dust collection unit by the airflow. When the dust collecting part is in a downward posture, the dust collecting part and the dust collecting part form a cylindrical discharge passage. The discharge device discharges dust by generating an air flow in the discharge passage.
Description
Technical Field
The present invention relates to an air conditioner having a filter cleaning function for automatically cleaning dust attached to an air filter built in an indoor unit.
Background
As such an air conditioner, an air conditioner disclosed in patent document 1, for example, is known in the related art.
In the air conditioner disclosed in patent document 1, dust attached to the air filter is removed by a brush. The dust attached to the brush is scraped off by the wiper blade to a dust collecting section provided below the brush. Further, the air conditioner disclosed in patent document 1 includes a blade rotating device, and the blade is rotated by the blade rotating device. Thus, the dust scraped off into the dust collection unit is compressed between the side surface of the blade and the inner surface of the dust collection unit.
In the air conditioner of patent document 1, the user himself or herself needs to remove (discard) the dust in the dust collecting unit by detaching the dust collecting unit from the air conditioner main body or the like. Therefore, there is a problem that the time and effort of the user are consumed.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2014-074504
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide an air conditioner capable of reducing the time and effort required for removing dust in a dust collecting unit.
In order to solve the above conventional problems, an air conditioner according to the present invention includes: a brush for removing dust attached to the air filter; a blade for scraping off the dust attached to the brush; a dust receiving part for receiving the dust scraped off by the scraper; a dust collecting part disposed below the dust collecting part; a rotating device which rotates the dust collecting part from an upward posture to a downward posture so as to recover the dust received by the dust collecting part to the dust recovering part; and a discharge device for discharging the dust collected in the dust collection unit by the airflow. When the dust collecting part is in a downward posture, the dust collecting part and the dust collecting part form a cylindrical discharge passage. The discharge device discharges dust by generating an air flow in the discharge passage.
According to the air conditioner of the present invention, the trouble of removing dust in the dust collecting unit is reduced.
Drawings
Fig. 1 is a perspective view of an indoor unit included in an air conditioner according to embodiment 1 of the present invention.
Fig. 2 is a cross-sectional view of the indoor unit of fig. 1.
Fig. 3 is a perspective view showing components related to the blade, the dust collecting unit, and the dust collecting unit.
Fig. 4 is a cross-sectional view showing a state where the dust collecting portion is in an upward posture.
Fig. 5 is a cross-sectional view showing a state where the dust collecting portion is in a downward posture.
Fig. 6 is a side view showing components related to the suction device.
Fig. 7 is an enlarged perspective view of the other end portion of the dust collecting unit, showing a state in which the opening of the discharge passage is opened.
Fig. 8 is an enlarged perspective view of the other end portion of the dust collecting unit, and is a view showing a state in which the opening of the discharge passage is closed.
Fig. 9 is a side view of a component related to the dust collecting unit.
Fig. 10 is a view showing a cross section taken along line 10-10 of fig. 9.
Fig. 11 is a view showing a cross section taken along line 11-11 of fig. 9.
Fig. 12 is a perspective view showing components related to the dust collecting portion.
Fig. 13 is an enlarged perspective view showing a peripheral structure of the support member of fig. 12.
Fig. 14 is a cross-sectional view taken along line 14-14 of fig. 12.
Fig. 15 is a cross-sectional view of an indoor unit of an air conditioner according to embodiment 2 of the present invention.
Fig. 16A is a cross-sectional view of a main portion of a seal member for explaining embodiment 1 of the present invention.
Fig. 16B is a sectional view of a main portion of a seal member for explaining embodiment 1 of the present invention.
Detailed Description
An air conditioner according to the present invention is an air conditioner having a filter cleaning function of automatically cleaning dust adhering to an air filter built in an indoor unit, and includes: a brush for removing dust attached to the air filter; a blade for scraping off the dust attached to the brush; and a dust collecting portion for receiving the dust scraped off by the blade. The air conditioner further includes: a dust collecting part disposed below the dust collecting part; a rotating device which rotates the dust collecting part from an upward posture to a downward posture so as to recover the dust received by the dust collecting part to the dust recovering part; and a discharge device for discharging the dust collected in the dust collection unit by the airflow. When the dust collecting part is in a downward posture, the dust collecting part and the dust collecting part form a cylindrical discharge passage. The discharge device discharges dust by generating an air flow in the discharge passage.
According to this configuration, the dust collecting portion and the dust collecting portion form a cylindrical discharge passage, and the dust is discharged by generating an air flow in the discharge passage. Thus, the dust in the dust collecting unit can be removed without detaching the dust collecting unit from the air conditioner main body or the like. Therefore, the trouble of removing the dust in the dust collecting unit can be reduced.
The discharge device may be a suction device that sucks dust in the discharge passage.
Further, generally, the farther from the suction device, the smaller the suction force of the suction device. Therefore, the opening area of the discharge passage is preferably reduced as the discharge passage is separated from the suction device. According to this configuration, the suction force at a position distant from the suction device can be increased, and the suction force in the discharge passage can be made more uniform.
Further, the bottom of the discharge passage is preferably inclined downward as it approaches the suction device. According to this configuration, the dust in the discharge passage can be guided to the suction device side by gravity, and the efficiency of removing the dust in the discharge passage can be improved.
The discharge device may be an air blower for pushing out dust in the discharge passage by blowing air.
In this case, the air conditioner preferably includes: a heat exchanger; and a fan for blowing out the air heat-exchanged by the heat exchanger into the room, wherein the air blowing device includes an air direction switching device for switching an air direction to blow out the air blown out from the fan into the discharge passage. According to this configuration, the fan normally provided in the air conditioner can be used as the wind power source of the air blowing device, and it is not necessary to provide a separate wind power source for blowing air to the dust in the discharge passage. Therefore, cost reduction can be achieved. Further, since energy saving can be achieved, performance and function can be improved by effectively utilizing this space.
Further, the blade is preferably held by the dust collecting portion and is provided so as to be positioned in the discharge passage when the dust collecting portion is in a downward posture. According to this configuration, when the discharging device discharges the dust in the discharge passage by the air flow, the blade is positioned in the discharge passage, and therefore the dust attached to the blade can be removed by the air flow.
The dust collecting unit preferably includes a projecting portion projecting downward so as to be spaced apart from the blade positioned in the discharge passage. According to this configuration, the gap between the wiper blade and the bottom of the dust collection unit can be increased, and clogging of dust between the wiper blade and the bottom of the dust collection unit can be suppressed.
Further, in the case where the blade is held by the dust collecting portion, a pressure generated when the blade and the brush are in contact acts on the dust collecting portion. In this case, since the dust-catching portion is usually a long member, the dust-catching portion may be deformed. Therefore, the dust-catching part has a curved surface curved in a convex shape in a cross section taken in a direction of rotation by the rotating device, and the wiper blade is provided at a top portion of the curved surface. According to this structure, the strength of the dust-catching portion can be improved as compared with the case where the dust-catching portion is flat.
One end of the discharge passage is connected to the discharge device, and the other end of the discharge passage has an opening. According to this configuration, the air flow can be generated over substantially the entire length of the discharge passage, and the efficiency of removing dust in the discharge passage can be improved.
When the opening at the other end of the discharge passage is kept open, strong wind such as typhoon may flow into the discharge passage from the discharge device side, flow back through the discharge passage, and be discharged from the opening. At this time, if dust exists in the discharge passage, the dust may be discharged from the opening. Since the opening is usually located in the room, dust is discharged into the room. Therefore, it is preferable that the dust collecting part is provided with an opening/closing valve which is attached to rotate integrally with the dust collecting part, and which opens the opening of the discharge passage when the dust collecting part is in the upward posture and closes the opening of the discharge passage when the dust collecting part is in the downward posture. According to this configuration, the opening can be opened and closed by the force of the rotation of the dust collecting portion, and dust can be prevented from being released into the room.
Further, it is preferable that a gap through which a part of the dust removed from the air filter by the brush passes is provided between the dust collecting unit and the dust collecting unit when the dust collecting unit is in the upward position. According to this configuration, a part of the dust removed from the air filter can be directly collected into the dust collection unit through the gap. This eliminates the need for the dust collector to receive all of the dust removed from the air filter.
The gap is preferably provided vertically below (including substantially vertically below) the area where the air filter contacts the brush. According to this configuration, the amount of dust directly collected into the dust collection unit through the gap can be increased.
Preferably, a support member for supporting the dust collecting part from below is provided at an intermediate portion in the longitudinal direction of the dust collecting part, and the support member is provided above a lower end portion of the dust collecting part in a downward posture. According to this configuration, the dust collecting portion can be prevented from being deflected by the support member, and the opening area of the discharge passage can be prevented from being reduced by the support member. This makes it possible to smooth the flow of the air flow in the discharge passage and to improve the efficiency of removing dust in the discharge passage.
Further, it is preferable that a protrusion is provided at an end of the curved surface of the dust collecting unit. According to this configuration, when the dust collecting portion is rotated from the upward posture to the downward posture, dust collected on the curved surface of the dust collecting portion during the rotation can be prevented from scattering.
Preferably, the dust collecting portion is in a downward position, and the sealing portion is formed by an inner wall surface of the dust collecting portion and the dust collecting portion. According to this configuration, the airtightness of the discharge passage configured when the dust collecting portion is in the downward posture can be improved, and therefore the efficiency of removing dust in the discharge passage can be improved.
Further, a seal member is preferably provided to cover the seal portion. According to this configuration, even when the inner wall surface of the dust collecting portion or the dust collecting portion deforms in the longitudinal direction and the gap of the sealing portion expands, the airtightness of the discharge passage can be ensured. Therefore, the efficiency of removing dust in the discharge passage can be improved.
In addition, the sealing member is preferably formed of a thin-walled sheet material. According to this configuration, when the inner wall surface of the dust collecting portion and the dust collecting portion are deformed in the longitudinal direction, the sealing member is brought into soft close contact with each other along the deformation, and therefore, the sealing property can be ensured. This can maintain the airtightness of the discharge passage.
Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited to the embodiment.
(embodiment 1)
An air conditioner according to embodiment 1 of the present invention includes an outdoor unit and an indoor unit connected to each other by refrigerant pipes. Fig. 1 is a perspective view of an indoor unit of an air conditioner according to embodiment 1. Fig. 2 is a cross-sectional view of the indoor unit of fig. 1.
As shown in fig. 1 or 2, the indoor unit according to embodiment 1 includes: a main body 2; and a movable front panel 4 that openably closes the front opening 2a of the main body 2. When the operation of the air conditioner is stopped, the front panel 4 is provided so as to closely contact the main body 2 and close the front opening 2 a. On the other hand, during an air conditioning operation of the air conditioner, the front panel 4 is provided so as to move in a direction away from the main body 2 and open the front opening 2 a. Fig. 1 and 2 show a state in which the front panel 4 closes the front opening 2 a.
As shown in fig. 2, inside the main body 2, there are provided: a heat exchanger 6 for exchanging heat with the indoor air taken in from the front opening 2a and the top opening 2 b; and a fan 8 as a wind power source for blowing out the air heat-exchanged by the heat exchanger 6 into the room. The fan 8 is, for example, a cross-flow fan, and is provided to blow air into the room through an air outlet 10 provided below the main body 2. Further, inside the main body 2 are provided: a vertical airflow direction changing blade 12 that opens and closes the air outlet 10 and changes the direction of air blowing up and down; and left and right wind direction changing blades 14 for changing the blowing direction of the air to the left and right.
When the air-conditioning operation of the air-conditioning apparatus is started, the vertical airflow direction changing blade 12 is controlled to be opened, and the air outlet 10 is opened. By driving the fan 8 in this state, the indoor air is taken into the indoor unit through the front opening 2a and the top opening 2 b. The taken-in indoor air is heat-exchanged by the heat exchanger 6, passes through the fan 8, and is blown out from the air outlet 10 through the air passage 16 formed on the downstream side in the air blowing direction of the fan 8.
An air filter 18 is provided between the heat exchanger 6 and the front and top openings 2a and 2b, and the air filter 18 removes dust contained in the indoor air taken in from the front and top openings 2a and 2 b. The air filter 18 includes a frame portion, and a net portion held by the frame portion. The air conditioner according to embodiment 1 has a filter cleaning function of automatically cleaning dust adhering to the mesh portion of the air filter 18.
The air filter 18 is held by a filter holding member 20. The filter holding member 20 is provided with a 1 st holding space 20A and a 2 nd holding space 20B for holding the air filter 18. The air filter 18 is delivered to the 1 st and 2 nd holding spaces 20A and 20B by the filter delivery device 22.
The filter transfer device 22 includes: a shaft 24 extending in the width direction (depth direction in fig. 2) of the indoor unit; and a gear 26 attached to a part of the outer peripheral surface of the shaft 24. The air filter 18 is mounted around a shaft 24 and is engaged with a gear 26.
The air filter 18 is usually located in the 1 st holding space 20A, and removes dust contained in the indoor air taken in from the front opening 2a and the upper opening 2 b. When the start of cleaning of the air filter 18 is instructed, the gear 26 rotates in the forward direction (counterclockwise in fig. 2), and the air filter 18 is conveyed from the 1 st holding space 20A to the 2 nd holding space 20B. After the air filter 18 is conveyed to the 2 nd holding space 20B, the gear 26 rotates in the reverse direction (clockwise in fig. 2), and the air filter 18 is conveyed from the 2 nd holding space 20B to the 1 st holding space 20A.
In the present embodiment, the transport path of the air filter 18 from the 1 st holding space 20A to the 2 nd holding space 20B is referred to as "outward path", and the transport path of the air filter 18 from the 2 nd holding space 20B to the 1 st holding space 20A is referred to as "return path".
A guide member 28 that guides the air filter 18 so as to move along the periphery of the shaft 24 is provided near the shaft 24. The guide member 28 is provided with a predetermined gap with respect to the shaft 24.
Further, a brush 30 for removing dust adhering to the surface of the air filter 18 is provided in the vicinity of the shaft 24. A wiper blade 32 for removing dust adhering to the brush 30 is provided below the brush 30. The blade 32 is made of an elastic body such as rubber, for example, a soft elastic body having flexibility.
The base end portion of the brush 30 is held by a brush holding portion 34 as an example of a brush moving device. The brush 30 and the brush holder 34 are provided to extend in the width direction of the indoor unit. The brush holder 34 rotates about a rotation axis extending in the width direction of the indoor unit, and the tip of the brush 30 moves between a position in contact with the air cleaner 18 on the downstream side of the outward path of the guide member 28 and a position in contact with the tip of the blade 32. When the front end of the brush 30 contacts the air filter 18, the dust attached to the brush 30 is removed by the brush 30 contacting the wiper blade 32.
The base end portion of the blade 32 is held by a dust receiving portion 36 that receives dust scraped off by the blade 32. A dust collecting unit 38 for collecting (scraped) dust removed by the brush 30 and the blade 32 is provided below the dust collecting unit 36. The blade 32, the dust collecting unit 36, and the dust collecting unit 38 are provided so as to extend in the width direction of the indoor unit.
Fig. 3 is a perspective view showing components related to the blade 32, the dust collecting portion 36, and the dust collecting portion 38. As shown in fig. 3, a rotating device 40 for rotating the dust collecting portion 36 around an axis is connected to one end of the dust collecting portion 36.
Fig. 4 is a view showing a cross section showing a state where the dust collecting portion 36 is in an upward posture. Fig. 5 is a view showing a cross section showing a state where the dust collecting portion 36 is in a downward posture. As shown in fig. 4 and 5, the rotating device 40 is configured to rotate the dust collecting portion 36 around the rotating shaft 36A. The rotating device 40 rotates the dust collecting part 36 from the upward posture shown in fig. 4 to the downward posture shown in fig. 5, thereby collecting the dust received by the dust collecting part 36 into the dust collecting part 38.
The dust collecting unit 38 is provided with a step portion 38A. As shown in fig. 4, when the dust collecting portion 36 is in the upward position, the one end portion 36B away from the rotation shaft 36A is placed on the step portion 38A, and rotation is restricted. When the dust collecting unit 36 is in the upward position, a gap S1 is provided between the dust collecting unit 36 and the dust collecting unit 38 to allow a part of the dust removed from the air filter 18 by the brush 30 to pass therethrough. As shown in fig. 4, the gap S1 is provided vertically below (including substantially vertically below) the area where the air cleaner 18 contacts the brush 30.
When the dust collecting part 36 is rotated to the downward position by the driving of the rotating device 40, as shown in fig. 5, the gap S1 is closed, and the dust collecting part 36 and the dust collecting part 38 constitute the cylindrical discharge passage 42. At this time, the wiper 32 is located in the discharge passage 42. The dust collecting portion 38 has a projecting portion 38B projecting downward so as to be spaced apart from the blade 32 positioned in the discharge passage 42. The protrusion 38B enlarges the gap between the blade 32 and the bottom of the dust collection unit 38, thereby preventing the blade 32 and the bottom of the dust collection unit 38 from being clogged with dust.
As shown in fig. 3, a suction device 44, which is an example of a discharge device that discharges the dust collected in the dust collection unit 38 by the airflow, is connected to one end of the discharge passage 42. The suction device 44 is a device that sucks dust in the discharge passage 42. An opening 42A is provided at the other end of the discharge passage 42.
Fig. 6 is a side view showing components related to the suction device 44. As shown in fig. 6, the suction device 44 includes: a suction tube 46; and a suction fan 48 for generating a suction force in the suction pipe 46. One end of the suction tube 46 is connected to one end of the dust collection unit 38, and the other end 46A of the suction tube 46 is open. The other end 46A of the suction pipe 46 is connected to an exhaust hose (not shown) having one end open to the outside so that dust passing through the inside of the suction pipe 46 can be discharged to the outside. The suction fan 48 is driven when the dust collecting portion 36 and the dust collecting portion 38 form the discharge passage 42, and sucks dust in the discharge passage 42.
Next, an example of an operation of cleaning dust adhering to the air filter 18 will be described. In the operation of cleaning the dust adhering to the air filter 18, the dust collecting portion 36 is in an upward posture (see fig. 4). The cleaning operation of the air filter 18 is performed under the control of a control unit, not shown.
When the gear 26 rotates in the forward direction (counterclockwise in fig. 2) from the state of fig. 2, the air filter 18 is conveyed from the 1 st holding space 20A to the 2 nd holding space 20B. When the tip portion of the air filter 18 passes between the brush holder 34 and the shaft 24, the brush holder 34 rotates in the forward direction (clockwise in fig. 2), and the tip portion of the brush 30 comes into contact with the tip portion and the mesh portion of the air filter 18 so as to extend over them.
When the gear 26 rotates further in the positive direction, the air filter 18 is further conveyed toward the 2 nd holding space 20B. During this conveyance, the brush holder 34 fixes the brush 30 at a position in contact with the air filter 18. Accordingly, the dust attached to the air filter 18 is caught by the brush 30 fixed at the fixed position, and stays on the upstream side of the brush 30 in the conveyance direction of the air filter 18. At this time, the dust accumulated in the brush 30 and the dust attached to the air filter 18 are entangled with each other and wound like a paper twist. This improves the efficiency of removing dust adhering to the air filter 18. A part of the dust adhering to the brush 30 is scraped off into the dust collecting unit 38 through the gap S1. In order to keep the pressing force of the brush 30 against the air filter 18 constant, an elastic member such as a damper may be provided to the brush 30. This further improves the efficiency of removing dust adhering to the air filter 18.
When the gear 26 rotates further in the forward direction and the air cleaner 18 reaches the 2 nd holding space 20B, the rotation of the gear 26 in the forward direction is stopped. At this time, at least a part of the front end of the brush 30 is in contact with the rear end (frame portion) of the air filter 18 located outside the cleaning region of the air filter 18.
Thereafter, the brush holder 34 is rotated in the reverse direction (counterclockwise in fig. 2), and the brush 30 is swung at a position where it contacts the blade 32. Thereby, the excess dust adhering to the brush 30 is received in the dust collecting portion 38 and the dust receiving portion 36 through the gap S1. At this time, the wiper blade 32 may be swung in addition to the brush 30. This can improve the efficiency of removing dust adhering to the brush 30.
When the removal of the dust adhering to the brush 30 by the blade 32 is completed, the brush holder 34 is rotated in the reverse direction, and the brush 30 is returned to the position where it contacts the air filter 18. Thereafter, the gear 26 rotates in the reverse direction, and the air filter 18 starts to be conveyed to the return path.
While the air filter 18 is being conveyed to the home, the brush holder 34 fixes the brush 30 at a position in contact with the air filter 18. Accordingly, the dust attached to the air filter 18 is caught by the brush 30 fixed at the fixed position, and stays on the upstream side of the brush 30 in the conveyance direction of the air filter 18. A part of the dust attached to the brush 30 is received by the dust receiving portion 36.
When the feed of the air filter 18 to the return route is finished, the rotation of the gear 26 in the reverse direction is stopped. Thereafter, the brush holder 34 is rotated in the reverse direction (counterclockwise in fig. 2), and the brush 30 is swung at a position where it contacts the blade 32. Thereby, the excess dust adhering to the brush 30 is received in the dust collecting portion 38 and the dust receiving portion 36 through the gap S1. At this time, as described above, the blade 32 may be swung in addition to the brush 30.
When the removal of the dust adhering to the brush 30 by the blade 32 is completed, the cleaning operation of the air filter 18 is completed.
Next, the operation of discharging dust in the dust collecting part 36 and the dust collecting part 38 will be described. The dust discharging operation is performed under the control of a control unit, not shown.
When the conveyance of the air filter 18 to the outward route or the return route is completed, the rotating device 40 is driven to rotate the dust collecting portion 36 from the upward posture (see fig. 4) to the downward posture (see fig. 5). This allows the dust collected in the dust collecting portion 36 to be collected in the dust collecting portion 38. At this time, the dust collecting portion 36 and the dust collecting portion 38 form a cylindrical discharge passage 42.
Then, the suction fan 48 of the suction device 44 is driven to generate an air flow as a suction force in the suction pipe 46. The dust in the discharge passage 42 is discharged to the outside of the room through the suction pipe 46 by this air flow. This completes the operation of discharging the dust in the dust collecting unit 36 and the dust collecting unit 38.
According to the air conditioner of embodiment 1, the dust collecting portion 36 and the dust collecting portion 38 form a cylindrical discharge passage 42, and the dust is discharged by generating an air flow serving as a suction force in the discharge passage 42. With this configuration, the dust in the dust collecting unit 38 can be removed without detaching the dust collecting unit 38 from the main body 2. Therefore, the trouble of removing the dust in the dust collecting unit 38 can be reduced.
In the air conditioner according to embodiment 1, when the dust collecting portion 36 is in the upward position, a gap S1 is provided between the dust collecting portion 36 and the dust collecting portion 38. With this configuration, a part of the dust removed from the air filter 18 can be directly collected into the dust collection unit 38 through the gap S1. This eliminates the need for the dust collecting unit 36 to receive all the dust removed from the air filter 18.
In the air conditioner according to embodiment 1, the gap S1 is provided vertically below (including substantially vertically below) the area where the air cleaner 18 contacts the brush 30. In particular, the gap S1 is preferably provided on the upstream side in the conveyance direction of the brush 30 toward the air filter 18 when the air filter 18 is conveyed toward the outward route. With this configuration, the amount of dust directly collected into the dust collection unit 38 through the gap S1 can be increased.
Further, according to the air conditioner of embodiment 1, when the suction device 44 discharges the dust in the discharge passage 42 by the air flow, the blade 32 is positioned in the discharge passage 42, and therefore the dust attached to the blade 32 can be removed by the air flow.
In addition, according to the air conditioner of embodiment 1, since the other end portion of the discharge passage 42 has the opening 42A, an air flow can be generated over substantially the entire length of the discharge passage 42. This can improve the efficiency of removing dust in the discharge passage 42.
Further, if the opening 42A at the other end of the discharge passage 42 is kept open, strong wind such as typhoon may flow into the discharge passage 42 from the suction device 44 side, flow back in the discharge passage 42, and be discharged from the opening 42A. At this time, if dust exists in the discharge passage 42, the dust may be discharged from the opening 42A. Normally, since the opening 42A is located in the room, dust is discharged into the room. Therefore, as shown in fig. 7 and 8, it is preferable to further include an on-off valve 50 attached to the dust collecting portion 36 so as to rotate integrally therewith, the opening 42A being opened when the dust collecting portion 36 is in the downward posture (see fig. 7), and the opening 42A being closed when the dust collecting portion 36 is in the upward posture (see fig. 8). With this configuration, the opening 42A can be opened and closed by the force of the rotation of the dust collecting part 36, and dust can be prevented from being released into the room.
The opening 42A of the discharge passage 42 need not be provided in the dust collecting unit 38. For example, the opening 42A of the discharge passage 42 may be provided in the dust collecting portion 36. In this case, by setting the opening 42A upward, even if strong wind flows from the suction device 44 side to the rotating device 40 side, the dust is not easily discharged from the opening 42A due to the influence of gravity. Therefore, the open/close valve 50 can be eliminated.
In addition, generally, the farther the suction device 44 is from the suction device 44, the smaller the suction force of the suction device 44. Therefore, the discharge passage 42 is preferably configured to have a reduced opening area as it is separated from the suction device 44. Fig. 9 is a side view of components related to the dust collecting unit 38. Fig. 10 is a view showing a cross section taken along line 10-10 of fig. 9. Fig. 11 is a view showing a cross section taken along line 11-11 of fig. 9. As shown in fig. 9 to 11, the suction force at a position distant from the suction device 44 can be increased by configuring the discharge passage 42 so that the opening area decreases as the distance from the suction device 44 increases. This makes the suction force in the discharge passage 42 more uniform.
As shown in fig. 9, the bottom of the discharge passage 42 is preferably inclined downward as it approaches the suction device 44. With this configuration, the dust in the discharge passage 42 can be guided toward the suction device 44 by gravity, and the efficiency of removing the dust in the discharge passage 42 can be improved.
Further, a support member 52 (see fig. 12 to 14) for supporting the dust collecting portion 36 from below is preferably provided at a longitudinal intermediate portion of the dust collecting portion 38. Fig. 12 is a perspective view showing components related to the dust collecting portion 36. Fig. 13 is an enlarged perspective view showing a peripheral structure of the support member 52 of fig. 12. Fig. 14 is a cross-sectional view taken along line 14-14 of fig. 12. As shown in fig. 12 to 14, by providing the support member 52 that supports the dust receiving portion 36 from below, the support member 52 can suppress the dust receiving portion 36 from being bent. Further, the support member 52 is preferably provided above the lower end of the dust collecting portion 36 in the downward posture. For example, it is preferable that a groove 36C for receiving the support member 52 is provided in the middle part of the dust collecting portion 36 in the longitudinal direction, and the support member 52 is placed on the step part 38A of the dust collecting portion 38. With this configuration, the reduction in the opening area of the discharge passage 42 due to the support member 52 can be suppressed. This can smooth the flow of the air flow in the discharge passage 42, and can improve the efficiency of removing dust in the discharge passage 42. The dust collecting portion 36 may be divided into two parts, and the two parts may be connected by the groove portion 36C.
In addition, in the case where the blade 32 is held by the dust-catching portion 36, the pressure generated when the blade 32 contacts the brush 30 acts on the dust-catching portion 36. In this case, since the dust-collecting portion 36 is a long member, the dust-collecting portion 36 may be deformed. Therefore, as shown in fig. 14, the dust collecting portion 36 preferably has a curved surface 36D curved in a convex shape in a cross section taken in a direction of rotation by the rotating device 40, and the blade 32 is provided on a top portion of the curved surface 36D. With this structure, the strength of the dust-collecting portion 36 can be increased as compared with the case where the dust-collecting portion 36 is flat.
Further, the surface of the dust-receiving portion 36 is preferably processed so as not to adhere dust containing oil components. For example, it is preferable that a plurality of convex protrusions are provided on the surface of the dust-receiving portion 36 at intervals to such an extent that dust does not clog. According to this configuration, the dust removal efficiency can be further improved.
Further, it is preferable to provide a fine through hole on the surface of the dust-collecting portion 36. According to this configuration, even if dust is fixed to the surface of the blade 32, as shown in fig. 5, when an air flow is generated in the discharge passage 42 in a state where the blade 32 is positioned in the discharge passage 42, the dust can be removed from the surface of the dust-receiving portion 36 by passing the air flow through the through-hole.
The dust collecting part 36 and the rotating device 40 are preferably configured to be separable. For example, the dust collecting part 36 and the rotating device 40 may have gears, respectively, and the gears may be engaged with each other to transmit the rotational power. Thus, for example, when the user removes the dust collecting part 36 and the dust collecting part 38 from the main body 2, it is possible to remove the dust collecting part and the dust collecting part without using the rotating device 40 as a power source.
As shown in fig. 4 and 14, a protrusion 70 is preferably provided at an end of the curved surface 36D. The projection 70 prevents dust collected on the curved surface 36D from scattering when the dust collecting portion 36 rotates from the upward posture to the downward posture.
Further, as shown in fig. 5, when the dust collecting portion 36 is in the downward position, the 1 st seal portion 71 and the 2 nd seal portion 72 are preferably formed by the inner wall surface of the dust collecting portion 38 and the dust collecting portion 36. With this structure, the airtightness of the discharge passage 42 is improved.
As shown in fig. 5 and 16B, the gap of the sealing portion is set to be larger in the 2 nd sealing portion 72 than in the 1 st sealing portion 71. This is because the 1 st sealing portion 71 is formed by the dust collecting portion 36 abutting against the inner wall surface of the dust collecting portion 38, and the 2 nd sealing portion 72 is formed by providing a minute gap between the dust collecting portion 36 and the inner wall surface of the dust collecting portion 38. With this structure, the rotation of the dust collecting portion 36 is stopped and smooth movement is ensured.
As shown in fig. 16A and 16B, sealing members 80 and 81 may be provided on the bottom surface of the dust collecting portion 36 and the inner wall surface of the dust collecting portion 38. According to this configuration, the sealing member is brought into contact so as to cover the upper end of the sealing portion, and it is possible to prevent a decrease in sealing performance due to an increase in the gap of the sealing portion caused by deformation of the dust collecting portion 36 or the dust collecting portion 38 in the longitudinal direction.
Further, the sealing members 80 and 81 are formed of thin sheets, and thus can be brought into soft close contact with the deformation of the dust collecting portion 36 or the dust collecting portion 38 in the longitudinal direction. This ensures sealing performance.
In the present embodiment, a thin sheet is used as the sealing member, but other configurations are possible as long as the sealing property can be ensured. Further, the sealing member 81 may be omitted as long as the close contact property of the sealing portion can be ensured by the gap management.
(embodiment 2)
Next, an air conditioner according to embodiment 2 of the present invention will be described. Fig. 15 is a cross-sectional view of an indoor unit of an air conditioner according to embodiment 2.
The air conditioner according to embodiment 2 differs from the air conditioner according to embodiment 1 in that an air blower 60 for pushing out dust in the discharge passage 42 by blowing air is provided as a discharge device in place of the suction device 44.
In embodiment 2, air blowing device 60 includes: a fan 8; and an airflow direction switching device 62 that switches the airflow direction so as to send the air blown out from the fan 8 into the discharge passage 42. That is, in embodiment 2, the fan 8, which is normally provided in the air conditioner, is used as a wind power source of the air blowing device 60.
The wind direction switching device 62 includes: a blower pipe 64 for communicating the ventilation passage 16 with one end of the discharge passage 42; and an on-off valve 66 for opening and closing the opening 64A of the air supply duct 64. During air conditioning operation such as cooling or heating, the opening/closing valve 66 closes the opening 64A of the air supply duct 64. Therefore, the air blown out from the fan 8 does not flow into the discharge passage 42. On the other hand, when the dust collecting portion 36 and the dust collecting portion 38 are performing the dust discharging operation, the opening/closing valve 66 opens the opening 64A of the ventilation passage 16. Accordingly, the ventilation path 16 and one end of the discharge path 42 communicate with each other through the blower pipe 64, and the air blown out from the fan 8 flows as an airflow through the discharge path 42.
In fig. 15, the on-off valve 66 is provided at the end of the blower pipe 64 on the side of the air passage 16 (the opening 64A), but an on-off valve (not shown) may be provided at the end on the side of the discharge passage 42 in addition to or different from this. In this case, an on-off valve (not shown) may be attached to rotate integrally with the dust collector 36, and may be configured as an on-off valve that closes the ventilation passage 16 when the dust collector 36 is in the upward posture and opens the ventilation passage 16 when the dust collector 36 is in the downward posture. That is, the opening/closing valve (not shown) may be installed so as to rotate integrally with the dust collector 36, and may be configured to close the ventilation passage 16 in the normal state and open the ventilation passage 16 only in the dust discharging operation.
In embodiment 2, the other end of the discharge passage 42 is provided so as to communicate with the outside. For example, the other end of the discharge passage 42 is open to the outside of the room through an exhaust hose (not shown). Therefore, the dust in the discharge passage 42 is pushed out by the air flowing in the discharge passage 42, and is discharged to the outside from the other end portion of the discharge passage 42. During this discharge operation, the air outlet 10 is closed by the vertical airflow direction-changing blades 12, and the air blown out from the fan 8 flows substantially toward the air duct 64.
According to the air conditioner of embodiment 2, since the fan 8 is used as the wind power source of the air blower 60, it is not necessary to separately provide a wind power source for discharging dust in the discharge passage 42. Therefore, cost reduction can be achieved. Further, since space can be saved, it is possible to improve performance by increasing the length of the heat exchanger or the fan, or to improve functions by providing additional functional components, for example, by effectively utilizing the space. As the wind power source of the air blower 60, a wind power source different from the fan 8 may be used.
Industrial applicability
As described above, the air conditioner of the present invention can reduce the trouble of removing dust in the dust collecting unit, and is therefore useful as various air conditioners including air conditioners used in general households.
Description of the reference numerals
2 main body
2a front opening
2b upper surface opening part
4 front panel
6 Heat exchanger
8 Fan
10 blow-out port
12 vertical wind direction changing blade
14 left and right wind direction changing blade
16 ventilating path
Opening part of 16A
18 air filter
20 Filter holding Member
20B No. 2 holding space
22 Filter delivery device
24 shaft
26 Gear
28 guide member
30 brushes
32 scraping blade
34 Brush holder
36 dust collecting part
36A rotary shaft
One end part of 36B
36C groove part
36D curved surface
38 dust collecting part
38A step part
38B projection
40 rotating device
42 discharge passage
42A opening part
44 suction device (discharge device)
46 suction tube
46A another end portion
48 suction fan
50 open/close valve
52 support member
60 air supply device
62 wind direction switching device
64 blast pipe
Opening part of 64A
66 opening and closing valve
70 projection
71 1 st seal part
72 nd 2 nd seal part
80. 81 seal the components.
Claims (18)
1. Air conditioner, it
Has a filter cleaning function of automatically cleaning dust attached to an air filter built in an indoor unit,
the air conditioner includes:
a brush for removing dust attached to the air filter; and
a blade for scraping off the dust attached to the brush,
the air conditioner is characterized by further comprising:
a dust receiving portion that receives dust scraped off by the blade;
a dust collecting section disposed below the dust collecting section;
a rotating device that rotates the dust collecting portion from an upward posture to a downward posture to collect the dust received by the dust collecting portion to the dust collecting portion; and
a discharge device for discharging the dust collected in the dust collection unit by using airflow,
a cylindrical discharge passage formed by the dust collecting part and the dust collecting part when the dust collecting part is in the downward position,
the discharge device discharges dust by generating an air flow in the discharge passage.
2. The air conditioner according to claim 1, characterized in that:
the discharge device is a suction device that sucks dust in the discharge passage.
3. The air conditioner according to claim 2, characterized in that:
the discharge passage has a smaller opening area as it goes away from the suction device.
4. The air conditioner according to claim 2, characterized in that:
the bottom of the discharge passage is inclined downward as it approaches the suction device.
5. The air conditioner according to claim 1, characterized in that:
the discharge device is an air blower for pushing out the dust in the discharge passage by blowing air.
6. The air conditioner according to claim 5, characterized in that:
the air conditioner includes: a heat exchanger; and a fan for blowing out the air heat-exchanged by the heat exchanger to the room,
the air blowing device includes an air direction switching device that switches an air direction to blow air blown out from the fan into the discharge passage.
7. The air conditioner according to claim 1, characterized in that:
the blade is held by the dust collecting portion and is provided so as to be located in the discharge passage when the dust collecting portion is in the downward posture.
8. The air conditioner according to claim 7, wherein:
the dust collection unit includes a protruding portion protruding downward so as to be spaced apart from the blade positioned in the discharge passage.
9. The air conditioner according to claim 7, wherein:
the dust collecting part has a curved surface curved in a convex shape on a cross section taken in a direction of rotation by the rotating device,
the scraping piece is arranged at the top of the curved surface.
10. The air conditioner according to claim 1, characterized in that:
one end portion of the discharge passage is connected to the discharge device,
the other end of the discharge passage has an opening.
11. The air conditioner according to claim 10, wherein:
the dust collecting device further includes an opening/closing valve that is attached to the dust collecting portion so as to rotate integrally therewith, and that opens the opening of the discharge passage when the dust collecting portion is in the upward posture and closes the opening of the discharge passage when the dust collecting portion is in the downward posture.
12. The air conditioner according to claim 1, characterized in that:
when the dust collecting unit is in the upward position, a gap through which a part of the dust removed from the air filter by the brush passes is provided between the dust collecting unit and the dust collecting unit.
13. The air conditioner according to claim 12, wherein:
the gap is provided below the area of the air filter in contact with the brush in the vertical direction.
14. The air conditioner according to claim 1, characterized in that:
a support member for supporting the dust collecting part from below is provided at a middle part in a longitudinal direction of the dust collecting part,
the support member is provided above a lower end portion of the dust collecting portion in the downward posture.
15. The air conditioner according to claim 1, characterized in that:
the dust collecting part has a curved surface curved in a convex shape on a cross section taken in a direction of rotation by the rotating device,
a protrusion is provided at an end of the curved surface of the dust collecting unit.
16. The air conditioner according to claim 1, characterized in that:
when the dust collecting portion is in the downward posture, a sealing portion is formed by the inner wall surface of the dust collecting portion and the dust collecting portion.
17. The air conditioner according to claim 16, wherein:
a seal member is provided to cover the seal portion.
18. The air conditioner according to claim 17, wherein:
the sealing member is formed of a thin-walled sheet material.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015169426 | 2015-08-28 | ||
| JP2015-169426 | 2015-08-28 | ||
| JP2016023245 | 2016-02-10 | ||
| JP2016-023245 | 2016-02-10 | ||
| PCT/JP2016/003267 WO2017037990A1 (en) | 2015-08-28 | 2016-07-11 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106662360A CN106662360A (en) | 2017-05-10 |
| CN106662360B true CN106662360B (en) | 2020-02-28 |
Family
ID=58186874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680001717.5A Active CN106662360B (en) | 2015-08-28 | 2016-07-11 | Air conditioner |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6603885B2 (en) |
| CN (1) | CN106662360B (en) |
| WO (1) | WO2017037990A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3067471C (en) * | 2018-03-05 | 2022-10-04 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Window air conditioner |
| JP6767635B2 (en) * | 2018-10-15 | 2020-10-14 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
| CN116966690A (en) * | 2019-03-04 | 2023-10-31 | 正泰电气股份有限公司 | Self-cleaning ventilation filtering device and complete switch equipment of preassembled transformer substation |
| JP7361294B2 (en) * | 2019-07-02 | 2023-10-16 | パナソニックＩｐマネジメント株式会社 | air conditioner |
| CN114413399B (en) * | 2022-01-19 | 2023-05-23 | 湖南伊恩医疗科技有限公司 | Electrostatic air disinfection device |
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| CN1584435A (en) * | 2003-08-18 | 2005-02-23 | 松下电器产业株式会社 | Air conditioner with indoor unit with automatic cleaning air filter |
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| CN103712326A (en) * | 2012-10-02 | 2014-04-09 | 松下电器产业株式会社 | Air conditioner |
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| JP2008128625A (en) * | 2006-11-24 | 2008-06-05 | Kowa Co Ltd | Cleaning device for air conditioner, and air conditioner |
| JP4952299B2 (en) * | 2007-02-28 | 2012-06-13 | ダイキン工業株式会社 | Indoor unit of air conditioner |
| JP5356041B2 (en) * | 2009-01-08 | 2013-12-04 | 三洋電機株式会社 | Air conditioner |
| JP2010286142A (en) * | 2009-06-09 | 2010-12-24 | Daikin Ind Ltd | Filter cleaning unit for air conditioner |
| JP5441851B2 (en) * | 2009-12-22 | 2014-03-12 | 三菱電機株式会社 | Air filter cleaning device and air conditioner indoor unit |
| JP5515869B2 (en) * | 2010-03-05 | 2014-06-11 | ダイキン工業株式会社 | Indoor unit of air conditioner |
| JP5272059B2 (en) * | 2011-08-15 | 2013-08-28 | 三菱重工業株式会社 | Dust reservoir and air conditioner |
| JP5919512B2 (en) * | 2012-10-02 | 2016-05-18 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
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2016
- 2016-07-11 JP JP2016564270A patent/JP6603885B2/en active Active
- 2016-07-11 WO PCT/JP2016/003267 patent/WO2017037990A1/en active Application Filing
- 2016-07-11 CN CN201680001717.5A patent/CN106662360B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584435A (en) * | 2003-08-18 | 2005-02-23 | 松下电器产业株式会社 | Air conditioner with indoor unit with automatic cleaning air filter |
| CN2713354Y (en) * | 2004-08-05 | 2005-07-27 | 张春生 | Multifunctional combined type semiautomatic cleaning device for air conditioner filter |
| CN101290151A (en) * | 2007-04-18 | 2008-10-22 | 海尔集团公司 | Air conditioner filter screen self-cleaning device |
| CN103712326A (en) * | 2012-10-02 | 2014-04-09 | 松下电器产业株式会社 | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017037990A1 (en) | 2017-03-09 |
| JP6603885B2 (en) | 2019-11-13 |
| JPWO2017037990A1 (en) | 2018-06-14 |
| CN106662360A (en) | 2017-05-10 |
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