JP2007107827A - Filter device of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner provided with a filter device having reliable film drivability by suppressing the increase in sliding friction against a film sliding part by intrusion of dust into a nozzle part through a simple structure. <P>SOLUTION: A plurality of U-shaped cutout parts 17a are provided on a surface for pressing a film 9 of an outer hull case 17 constituting a sliding surface supporting the film 9, whereby the sliding surface of the film 9 with the case is reduced. Further, intruded sand or the like can be discharged out of a suction nozzle 3 by the U-shaped cutout part 17a, whereby the increase in sliding frictional resistance of the film 9 by sand or the like contained in dust is suppressed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a filter device for an air conditioner that automatically cleans a filter.

  In the conventional air conditioner filter device, an air filter for preventing dust from entering the inside of the air conditioner main body is provided on the windward front surface and the top surface of the heat exchanger. Has a box-shaped suction nozzle that is bent in an L shape and has a space on the inner surface side so as to follow the cross-sectional shape of the air filter. The suction nozzle is driven along the horizontal direction of the air filter, and bent with the suction nozzle. The suction nozzle is connected to the air filter surface by an air hose or the like, and the suction nozzle includes an inner case having an opening extending across the entire width of the air filter cross-section direction on the air filter surface side, and an outer portion covering and opening the opening. A film having a suction port corresponding to a part is mounted, and the outer side is configured by a suction case and an outer case that covers the outside of the suction port drive range, While driving the device, the suction nozzle is driven in the horizontal direction to remove dust adhering to the air filter from the film suction port, and the film suction port is driven along the opening of the inner case of the suction nozzle. The dust adhering to the entire filter surface was removed.

Further, in order to improve the dust removal performance of the air filter, a configuration in which an elastic pad reaching the air filter surface is fixed in the vicinity of the suction port of the film has been devised (for example, see Patent Document 1).
JP 2005-140403 A

  However, in the filter device having the above-described prior art configuration, when fine sand contained in the dust enters the sliding surface between the film and the inner case or the outer cover, the sliding resistance of the film increases and the film is sucked. There was a possibility that the driving of the mouth was hindered and dust could not be removed from the entire surface of the air filter.

  In addition, with respect to the structure in which the elastic pad is fixed to the film, when the elastic pad passes through a portion that bends from the front side to the top side of the suction nozzle, the sliding in the vicinity of the film to which the nozzle inner case and the pad are fixed is provided. The frictional resistance of the moving surface is increased, and the influence of the increase in sliding frictional resistance such as fine sand contained in the dust has been increased.

  The present invention has been made in view of the above-described problems of the prior art, and has a simple structure that suppresses an increase in sliding friction on the sliding portion of the film due to entry of dust into the nozzle portion, and is a highly reliable film. It aims at providing the air conditioner provided with the filter device which has drive nature.

In order to solve the above problems, a filter device for an air conditioner according to the present invention includes a suction nozzle disposed on the windward side of an air filter for removing dust from the air passing through the heat exchanger, and the suction nozzle and the suction device. In the air conditioner equipped with a filter device having a configuration in which the hose and the like are connected by a flexible hose or the like, the box-like suction nozzle opens on the air filter surface side over the entire cross-sectional direction of the air filter. A film provided with a suction port at a position corresponding to a part of the inner case that covers the opening and is disposed outside the inner case, and the suction port is disposed at the opening. It is connected to the film driving device so that it can be driven along, and further covers the outside of the film except for the suction port of the film and its driving range. In addition to the structure for supporting the film, a plurality of U-groove notches are arranged in the driving direction of the film on the sliding surface for supporting the film on the air filter surface side of the outer cover. .

  The filter device of the air conditioner according to the present invention is provided with a circular or a small convex shape that is long in the driving direction of the film on one or both of the inner case and the outer cover of the suction nozzle, and the film floats from the sliding surface. The contact area between the inner case and the outer cover is reduced.

  Further, the filter device of the air conditioner of the present invention has a thickness of the suction nozzle film that reaches the air filter surface and is slightly compressed near the front or rear side of the suction port of the film in the suction nozzle driving direction. The structure which fixed the pad of the elastic body which has has cut | disconnected the surface facing the sliding part of the said pad of the inner case of the said suction nozzle bending part bent from the front side of the said air filter to the top | upper surface side.

  The filter device of the air conditioner according to the present invention can suppress an increase in frictional resistance to film sliding due to intrusion of fine sand or the like into the suction nozzle portion accompanying suction cleaning of the air filter, and is highly reliable. Film driveability can be realized.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.
(Embodiment 1)
FIG. 1 is a diagram illustrating a configuration example of a filter device for an air conditioner according to Embodiment 1 of the present invention. In this figure, the air filter 2 is disposed on the front side and the top side to remove dust from the air passing through the heat exchanger, and is supported and fixed to the filter cloth 1. A box-shaped suction nozzle 3 having an L shape is provided along the air filter 2 on the windward side of the air filter 2.

  The suction nozzle 3 can be smoothly moved to the left and right with a very narrow gap from the air filter 2 by guide rails 4 installed at the upper and lower ends of the filter cloth 1. Dust adhering to the air filter is sucked from the suction nozzle 3.

  Further, a suction hose 5 is connected to the suction nozzle 3, and the suction hose 5 is further connected to a suction device 6.

  The suction hose 5 has flexibility so that the movement of the suction nozzle 3 can be prevented.

  Further, an exhaust duct 7 is connected to the suction device 6 and is routed outside the room.

  The dust of the air filter sucked by the suction nozzle 3 is discharged to the outside through the suction duct 5, the suction device 6, and the exhaust duct 7.

  Next, the detailed structure of the suction nozzle 3 will be described with reference to FIGS.

FIG. 2 is a developed perspective view (back view) showing the structure of the suction nozzle 3. The suction nozzle 3 includes a nozzle inner case 8 constituting a flow path of sucked air, a film 9 provided so as to surround the nozzle inner case 8, a gear 14a that supports the film 9 and transmits a driving force, and a gear receiver. It comprises a tool 14b and rollers 15a and 15b for supporting the film 9 and driving it smoothly. A slit-like nozzle opening 10 having a length corresponding to the longitudinal length of the air filter 2 is provided on the air filter side surface of the nozzle inner case 8.

  On the other hand, the film 9 is formed in a loop shape and is wound around the outer periphery of the nozzle inner case 8 so as to cover the nozzle opening 10.

  The film 9 is provided with a suction port 16 having a length equivalent to the length of the air filter 12 on the air filter surface side, and the film 9 is attached to a position where the suction port 16 is opposed to the nozzle opening 10. .

  Equally spaced drive holes 12 are provided at both ends of the film 9, and the gear 14a connected to the stepping motor 13 meshes with the drive holes 12, so that the film 9 can be freely driven in any of the vertical directions. It has become.

  The film 9 is supported by fixing the outer covers 17 and 18 to the nozzle inner case 8. The outer cover 17 is provided with a plurality of U-shaped notches 17 a at positions where the film 9 is held down.

  FIG. 3 is a perspective view (back view) of the suction nozzle 3 after assembly.

  When the suction nozzle 3 configured as described above sucks and cleans the entire surface of the air filter 2, fine sand contained in dust enters between the film 9 and the outer covers 17 and 18 to increase the sliding resistance of the film 9. However, the U-shaped notch 17 a provided in the outer cover 17 reduces the contact surface between the outer cover 17 and the film 9, and fine sand or the like that has entered between the outer cover and the film 9 is formed on the film 9. When it moves with driving, it plays a role of discharging out of the suction nozzle 3, and an increase in sliding resistance of the film 9 can be suppressed.

  In the present embodiment, an example in which the U-shaped notch 17a is provided in the outer cover 17 is shown. However, even if a U-shaped notch is provided on the surface of the outer cover 18 that holds the film 9, the same applies. In addition, the increase in sliding resistance of the film 9 can be suppressed.

(Embodiment 2)
FIG. 6 is an exploded perspective view (front view) of the nozzle inner case 8 and the film 9 showing the second embodiment of the present invention.

  In the suction nozzle 3 described in the first embodiment, a plurality of convex shapes 20 that are slightly longer in the driving direction of the film 9 than the sliding surface of the nozzle inner case 8 with the film 9 are provided.

  According to this embodiment, the film 9 is supported at a position floating from the sliding surface with the nozzle inner case by the small convex shape 20 provided on the sliding surface with the film 9 of the nozzle inner case 8. The sliding surface of the film 9 can be extremely reduced. As a result, even when fine sand contained in the dust accumulated in the air filter 2 enters the sliding surface between the nozzle inner case 8 and the film 9, the increase in the sliding frictional resistance of the film 9 due to sand or the like can be suppressed. It becomes possible.

  In this embodiment, the example in which the convex shape 20 is provided in the nozzle inner case 8 is shown. However, even if a convex shape is provided on the film sliding surface of the outer case 17 or 18, the same effect can be achieved. Furthermore, an increase in sliding resistance of the film 9 can be suppressed.

(Embodiment 3)
FIG. 5 is a developed perspective view (back view) of the nozzle inner case 8 and the film 9 showing Embodiment 3 of the present invention. In order to improve the removal performance of dust accumulated on the air filter 2, an elastic pad 30 having a thickness that reaches the surface of the air filter 2 and is slightly compressed is attached to the film 9 described in the first embodiment with an adhesive or the like. It is fixed.

  At that time, when the pad 30 fixed to the film 9 passes through the bent portion of the nozzle inner case, the elastic pad 30 tends to extend straight and strongly contacts the sliding surface of the nozzle inner case 8 with the film 9. However, the contact surface with the vicinity of the pad 30 can be reduced by providing the notch 31 in the surface corresponding to the position through which the pad 30 of the sliding surface of the nozzle inner case 8 passes, and finely contained in dust. Even when fine sand or the like enters the sliding surface between the film 9 and the nozzle 8, it is possible to suppress an increase in frictional resistance when the pad 30 passes through the bent portion of the nozzle inner case.

  As described above, the filter device of the air conditioner according to the present invention can suppress an increase in the frictional resistance to the sliding of the film due to intrusion of fine sand or the like into the suction nozzle portion accompanying the suction cleaning of the air filter. Thus, a highly reliable film driving property can be realized, so that it can be applied to filters such as an air cleaner and a humidifier.

Configuration diagram of a filter device of an air conditioner according to Embodiment 1 of the present invention. FIG. 3 is a developed perspective view of suction nozzle suction according to Embodiment 1 of the present invention. Assembly perspective view of suction nozzle in Embodiment 1 of the present invention The expansion | deployment perspective view of the nozzle inner case and film in Embodiment 2 of this invention The expansion | deployment perspective view of the nozzle inner case and film in Embodiment 3 of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Filter work 2 Air filter 3 Suction nozzle 4 Guide rail 5 Suction hose 6 Suction device 7 Exhaust duct 8 Nozzle inner case 9 Film 10 Nozzle opening 12 Drive hole 13 Stepping motor 14a Gear 14b Gear fixture 15a Roller 15b Roller 16 Suction port 17 Outer cover 17a U-shaped notch 18 Outer cover 20 Convex shape 30 Pad 31 Notch

Claims (3)

In order to remove dust from the air passing through the heat exchanger, an air filter is provided so as to cover the front side and the top side of the upwind side of the heat exchanger, and further on the upwind side of the air filter, A box-like suction nozzle that bends in an L shape or an arc shape along the cross-sectional shape of the air filter and has a space on the inner surface side is disposed, and can be driven along the horizontal direction of the air filter. In the air conditioner equipped with a filter device having a configuration in which the device is connected by a flexible hose or the like, the box-shaped suction nozzle extends over the entire cross-sectional direction of the air filter on the air filter surface side. An inner case provided with an opening, and a fill that has a suction opening at a position corresponding to a part of the inner case while covering the opening. Is disposed and connected to the film driving device so that the suction port can be driven along the opening, and further covers the outside of the film except for the suction port of the film and its driving range. The air is characterized in that the film is supported, and a plurality of U-groove notches are arranged in the driving direction of the film on the sliding surface that supports the film on the air filter surface side of the outer cover. Harmonic machine filter device. In the suction nozzle, one or both of the inner case and / or the outer cover are provided with one or more small convex shapes that are circular or long in the driving direction of the film to support the film. The filter device for an air conditioner according to claim 1. In the suction nozzle, an elastic pad having a thickness that reaches the air filter surface and is slightly compressed is fixed near the front or rear side in the suction nozzle driving direction of the suction port of the film, and the inside of the suction nozzle The air conditioning according to any one of claims 1 and 2, wherein a surface of the case that is bent from the front surface side to the top surface side of the air filter is cut away from a surface that faces the sliding portion of the pad. Machine filter device.

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