JP2005083612A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of collecting and removing dust and dirt sticking to an air filter without requiring much labor with a simple constitution. <P>SOLUTION: This air conditioner is provided with a disk-like air filter 12 between a suction grille 6 and a heat exchanger 4 arranged on a front panel 5. The air filter is provided with a tray 13 for rotatably holding this air filter 12 around its center. The air filter is provided with a driving device 15 for driving the air filter 12 via a gear 12b formed in an outer peripheral part of the air filter 12, a suction nozzle 20 for sucking the dust and dirt sticking to the air filter 12, and a suction device 22 connected to the suction nozzle 20, and having the dust-dirt collecting function, and to facilitate cleaning work of the air filter 12. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an air conditioner including an air filter at an air suction port.

  As shown in FIG. 6, the conventional air conditioner has a blower 32 and a drive motor 33 disposed in a substantially central portion inside the casing 31 of the air conditioner, and a heat exchanger 34 outside the blower 32. A front panel 35 having a suction grill 36 is mounted on the front surface of the casing 31, and an air guider 37 is disposed between the front panel 35 and the blower 32. The air is sucked from the suction grill 36 by the blower 32 and supplied to the heat exchanger 34 through the air guider 37. The air heat-exchanged by the heat exchanger 34 is blown out from a blowing port 38 formed outside the suction grill 36 of the front panel 35. Reference numeral 39 denotes a wind direction changing blade disposed at the outlet 38. An air filter 40 for preventing dust contained in the sucked air from entering the inside of the air conditioner is detachably attached to the inside of the suction grill 36 of the front panel 35, and the attached dust is periodically removed. It is designed to be cleaned.

Various air filter devices for air conditioners that can easily clean the air filter 5 are also known (see, for example, Patent Document 1 and Patent Document 2).
JP-A-11-226331 JP-A-6-74521

  However, in the arrangement configuration of the known air filter 40 as described above, the air filter 40 is removed from the air conditioner according to the frequency of use of the air conditioner, and the dust adhering thereto is cleaned with water or a vacuum cleaner. This requires maintenance work. In particular, the type embedded in the ceiling has a problem of requiring a lot of labor and labor. In addition, when maintenance is not performed regularly, dust accumulates on the air filter 40, and the ventilation resistance of the intake air increases, so that there is a problem that the performance of the air conditioner decreases and the power consumption increases. .

  On the other hand, in the air conditioner described in the above-mentioned patent document, the suction device provided with the brush moves in a wide range and sucks and removes dust, or is provided with a belt-like filter, and the configuration is complicated. There is a problem.

  In view of the above-described conventional problems, an object of the present invention is to provide an air conditioner that can collect and remove dust attached to an air filter with a simple configuration without requiring labor.

  An air conditioner according to the present invention includes a disk-shaped air disposed between a front panel of a housing housing a heat exchanger, a blower, and the like, and a suction grill provided on the front panel and the heat exchanger. A filter, a tray that is disposed between the suction grille and the air filter and holds the air filter so as to be rotatable around the center thereof, and a drive that rotationally drives the air filter with a gear formed on the outer periphery of the air filter. The apparatus includes a suction nozzle for sucking dust attached to the air filter, and a suction device connected to the suction nozzle and having a dust collecting function.

  According to this configuration, dust attached to the air filter is sucked with a simple configuration while sucking with the suction nozzle while the disk-shaped air filter rotatably held by the tray is driven by the driving device. It is possible to collect and remove dust.

  In addition, a hook that fits into a fitting groove provided on the housing side is provided on one side of the tray, the tray is rotatable with the hook as a fulcrum, and a slide knob is provided on the opposite side of the side where the hook of the tray is provided. When the tray is fixed to the housing side by moving the knob, the tray can be freely opened and closed, and the air filter can be attached and detached very easily.

  In addition, a shielding plate that is equal to or larger than the opening area of the suction opening is integrally provided on the tray at a position that is a distance corresponding to the thickness of the air filter from the air filter holding surface of the tray and that faces the suction nozzle. And the inflow path | route of the air suck | inhaled by a suction nozzle with a shielding board can be restrict | limited, and the dust collection efficiency of dust can be improved. Moreover, dust collection efficiency can also be improved by having the air filter sandwiched between the suction nozzle and the shielding plate and correcting the warpage of the air filter.

  Further, when the suction nozzle can be moved 90 degrees to the suction grille side with the duct connecting one end of the suction device and the suction device as the center of rotation and moved outside the projection surface of the tray, the suction nozzle is rotated to rotate the projection surface of the tray. The air filter can be easily removed by moving it outside.

  Further, when a roller is provided on the air filter holding surface of the tray facing the back surface of the gear portion of the air filter that is fitted to the gear of the driving device, the roller reduces the frictional resistance between the tray and the air filter, thereby reducing the power. The air filter can be smoothly and stably rotated by the driving device.

  In addition, when the slide knob provided on the tray engages with the engagement hole or the engagement rib provided integrally with the drive device, and the tray is fixed in the closed state, the slide knob is attached to the tray at the maximum. By mounting without the limit, the slide knob is coupled to a part of the drive unit integrated with the drive gear, so that the fitting between the tray and the drive unit gear can be reliably maintained. Further, it is possible to prevent tooth skipping and the like due to variations in the tooth pitch of the gear due to warpage of the tray and the like.

  In addition, when a flexible claw provided at the tip of the suction nozzle is inserted into a fitting hole provided at the tip of the tray shielding plate to hold the suction nozzle and hold the air filter, It is possible to secure a space for the air filter to enter between the shielding plates, thereby preventing the air filter from being bent by its own weight, and to ensure that the suction nozzle is in contact with the front surface of the air filter to improve the dust collection efficiency of the suction nozzle. be able to.

  In addition, the suction opening of the suction nozzle is provided at a position substantially perpendicular to the longitudinal direction of the suction nozzle and passing through the substantially center of the air filter, and the suction nozzle is moved so that the suction opening moves between the center and the outer periphery of the air filter. If it is possible to move, it can be reduced to a free size compared to the case where the suction nozzle is provided with a length corresponding to the radius of the air filter, and the suction capability is reduced by reducing the suction opening. The apparatus can be used, can be configured compactly, and can reduce the operation sound generated during suction.

  According to the air conditioner of the present invention, the air filter is formed into a disk shape, and is rotatably held by the tray, so that the air filter is rotationally driven and the dust attached to the air filter is sucked by the suction nozzle. Dust collection and removal can be performed with a simple configuration and without any effort.

  Hereinafter, an embodiment of an air conditioner of the present invention will be described with reference to FIGS.

  In FIG. 1, the air conditioner of this embodiment is a ceiling arrangement type | mold, and the front surface which inhales and blows off air is installed downward. A blower 2 and its drive motor 3 are disposed at a substantially central portion inside the casing 1 of the air conditioner, a heat exchanger 4 is disposed outside the blower 2, and a suction grill is provided at the front of the casing 1. A front panel 5 having 6 is mounted. An air guider 7 integrally connected to the housing 1 is disposed between the front panel 5 and the blower 2.

  The air is sucked from the suction grill 6 and supplied to the heat exchanger 4 by the blower 2 through the air guider 7, and the heat exchanged by the heat exchanger 4 is formed outside the suction grill 6 of the front panel 5. Is blown out from the blowout port 8 that has been made. A wind direction changing blade 9 is disposed at the air outlet 8, and a heat insulating material 10 for preventing condensation is disposed on the inner wall surface from the heat exchanger 4 to the air outlet 8. A drain pan 11 is disposed on the panel 5 side.

  As shown in FIG. 2, a disc-shaped air filter 12 is disposed between the suction grill 6 and the blower 2 while being rotatably held around the center by a tray 13. In the air filter 12, a net 12a is stretched on the front surface of a disk-shaped frame, a gear 12b is formed on the outer periphery of the frame, and a mounting hole 12c serving as a rotation center of the air filter 12 is formed in the center as shown in FIG. Is formed.

  The tray 13 has a substantially rectangular shape, and a through hole is formed in a portion of the air filter 12 facing the net 12a. On the tray 13, a shielding plate 14 having substantially the same area as the projected area of a suction nozzle 20 described later is integrally extended from the outer peripheral portion of the tray 13 toward the central portion. A cylindrical support shaft portion 14 a that protrudes from the distal end portion of the shielding plate 14 and that fits the mounting hole 12 c of the air filter 12 and rotatably holds the air filter 12 is provided. In addition, a hook 13a is provided on one side of the tray 13, and the hook 13a is fitted into a fitting groove 7a formed in the air guider 7 so that the hook 13a is rotated between a horizontal installation posture and a detaching posture hanging downward. It is attached to the air guider 7 as possible.

  The driving device 15 of the air filter 12 includes a motor, and is fastened and fixed to the air guider 7 by a mounting hole 15a so that the gear 16 fixed to the output shaft meshes with the gear 12b of the air filter 12. A slide knob 17 is slidably mounted on the side of the tray 13 opposite to the side where the hook 13a is provided, and the claw 17a can be inserted into and removed from the engagement hole 15b formed in the driving device 15. The tray 13 is fixed to the air guider 7 by engaging 17a with the engagement hole 15b. With this configuration, a fitting pitch between the gear 16 of the driving device 15 and the gear 12b of the air filter 12 arranged on the tray 13 is secured, and gear skipping is prevented. Further, a roller 18 is disposed on the tray 13 at a position on the back surface side of the gear 12b of the air filter 12 that meshes with the gear 16 of the driving device 15, and the frictional force between the air filter 12 and the tray 13 at the gear driving unit is increased. It is prevented.

  The suction nozzle 20 includes a slit-like suction opening 20a, and is attached to the duct 21 so as to be rotatable between a posture facing the front side of the air filter 12 and a posture hanging downward. The slit-like suction opening 20 a has a length substantially equal to the radius of the air filter 12, the tip is located at the approximate center of the air filter 12, and the other end is located at the outer periphery of the air filter 12. Further, the suction nozzle 20 has a flexible claw 20b at the tip thereof, and the suction nozzle 20 is inserted into and engaged with the cylindrical support shaft portion 14a at the tip of the shielding plate 14 of the tray 13 so that the suction nozzle 20 is connected to the air filter 12. It is held in a posture facing the front.

  The suction nozzle 20 is connected to a suction device 22 mounted and fixed to the air guider 7 via a duct 21. The suction device 22 includes a suction fan and a unit (not shown) for collecting the sucked dust, and the dust attached to the air filter 12 is sucked from the suction opening 20a of the suction nozzle 20 by operating the suction fan. Then, it passes through the duct 21 and reaches the suction device 22.

  According to the above configuration, during operation of the air conditioner, the air filter 12 is rotated by operating the driving device 15 and the suction device 22 when necessary, and the air filter 12 rotates and air is supplied from the suction opening 20a of the suction nozzle 20. Dust adhering to the front surface of the filter 12 is removed by suction and collected in the suction device 22. Therefore, the dust adhering to the air filter 12 can be collected and removed with a simple configuration without requiring labor.

  Also, during maintenance of the air filter 12, after removing the suction grille 6 of the front panel 5, the claw 20b at the tip of the suction nozzle 20 is pulled out from the cylindrical support shaft portion 14a so that the suction nozzle 20 is suspended downward. By rotating and operating the slide knob 17 to disengage its claw 17a from the engagement hole 15b of the driving device 15, the tray 13 can be rotated from a horizontal installation posture to a posture hanging downward around the hook 13a. The air filter 12 can be easily removed. Therefore, maintenance of the air filter 12 and its peripheral parts can be easily performed with good workability.

  Next, another embodiment of the air conditioner of the present invention will be described with reference to FIG. In addition, about the component same as the said embodiment, the same referential mark is attached | subjected and description is abbreviate | omitted, and only a different point is mainly demonstrated.

  In FIG. 5, the suction opening 20 a of the suction nozzle 20 is formed in a substantially perpendicular direction to the longitudinal direction of the suction nozzle 20 at a position passing through the substantially center of the disk-shaped air filter 12. Further, the suction nozzle 20 is configured to be rotatable so that the tip of the suction nozzle 20 moves in the radial direction of the air filter 12.

  In such a configuration, dust at the center of the air filter 12 is sucked while the air filter 12 rotates once, and then the suction nozzle 20 rotates and the suction opening 20a extends from the center of the air filter 12 toward the outer periphery. The distance corresponding to the length of the suction opening 20 a is moved, and dust is sucked by the next rotation of the air filter 12. This operation is repeated, and dust is sucked and removed from the center to the outer periphery of the air filter 12.

  According to this embodiment, compared to the above embodiment in which the suction nozzle 20 is provided with a suction opening 20a having a length corresponding to the radius of the air filter 12, the suction opening 20a can be reduced in a free size, By reducing the suction opening 20a, it is possible to use the suction unit 22 having a small suction capability, and it is possible to configure a suction mechanism that is compact and has a low operation sound during the suction operation.

  In the air conditioner of the present invention, the air filter is formed into a disk shape and is rotatably held by a tray, so that the air filter is rotationally driven and sucked by a suction nozzle, so that dust attached to the air filter can be easily obtained. It is possible to collect and remove dust without requiring labor in the configuration, and is useful for various air conditioners, particularly ceiling-mounted air conditioners.

It is sectional drawing of the air conditioner of one Embodiment of this invention. It is a disassembled perspective view of the air conditioner of the embodiment. It is sectional drawing of the fixing | fixed part of the suction nozzle of the air conditioner of the embodiment. It is a perspective view of the air filter drive part of the air conditioner of the embodiment. It is a perspective view which shows the arrangement | positioning state of the suction nozzle in the air conditioner of other embodiment of this invention. It is sectional drawing of the air conditioner of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 2 Blower 4 Heat exchanger 5 Front panel 6 Suction grill 7a Fitting groove 12 Air filter 12b Gear 13 Tray 13a Hook 14 Shielding plate 14a Cylindrical spindle 15 Drive device 15b Engagement hole 16 Gear 17 Slide knob 18 Roller 20 Suction nozzle 20a Suction opening 20b Claw 21 Duct 22 Suction device

Claims (8)

  A front panel of a housing housing a heat exchanger and a blower, etc., a disk-shaped air filter disposed between a suction grill provided on the front panel and the heat exchanger, a suction grill and an air filter And a tray that is disposed between the air filter and rotatably holds the air filter around its center, a drive device that rotationally drives the air filter with a gear formed on the outer periphery of the air filter, and the air filter attached to the air filter An air conditioner comprising a suction nozzle for sucking dust and a suction device connected to the suction nozzle and having a dust collecting function.   A hook that fits into a fitting groove provided on the housing side is provided on one side of the tray, the tray is rotatable with the hook as a fulcrum, a slide knob is provided on the opposite side of the side where the hook of the tray is provided, The air conditioner according to claim 1, wherein the tray is fixed to the housing side by movement.   A shielding plate that is equal to or larger than the opening area of the suction opening is integrally provided on the tray at a position that is a distance corresponding to the thickness of the air filter from the air filter holding surface of the tray and that faces the suction nozzle. The air conditioner according to claim 1.   2. The air conditioner according to claim 1, wherein the suction nozzle is movable 90 degrees toward the suction grille side with a duct connecting one end of the suction device and the suction device as a rotation center so as to be movable out of the projection surface of the tray. .   2. An air conditioner according to claim 1, wherein a roller is provided on the air filter holding surface of the tray facing the back surface of the gear portion of the air filter fitted to the gear of the driving device.   3. The air conditioner according to claim 2, wherein a slide knob provided on the tray is engaged with an engagement hole or an engagement rib provided integrally with the drive device, and the tray is fixed in a closed state. Machine.   A flexible claw provided at the tip of the suction nozzle is inserted into a fitting hole provided at the tip of the tray shielding plate to hold the suction nozzle and hold the air filter. Item 1. An air conditioner according to item 1. The suction opening of the suction nozzle is provided at a position almost perpendicular to the longitudinal direction of the suction nozzle and through the center of the air filter, and the suction nozzle can be moved so that the suction opening moves between the center and the outer periphery of the air filter. The air conditioner according to claim 1, wherein:

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