JP4449703B2 - Air conditioner filter device - Google Patents

Description

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

  In a conventional air conditioner filter device, an air filter is provided on the front surface of the heat exchanger to prevent dust from entering the inside of the main body of the air conditioner. It is configured to be detachable so that it can be cleaned. The filter device with such a configuration not only requires frequent maintenance, but the air filter gradually clogs until maintenance is performed, resulting in a reduction in the amount of air passing through the heat exchanger. However, the air conditioning capability is reduced, leading to an increase in power consumption.

For this reason, an automatic cleaning device has been devised that periodically cleans dust adhering to the air filter with a brush, as in Patent Document 1, for the purpose of reducing the maintenance work of the filter.
JP 2001-99479 A

  However, in the configuration described in Patent Document 1, since the brush and the air filter are rubbed against each other, there is a problem that dust is entangled with the brush or the brush is worn or deformed to deteriorate its function. Also, after a certain amount of time has passed, the dust collected by scraping with a brush must be treated, and the labor of maintenance has not been greatly reduced. From this point of view, an automatic cleaning device for an air filter is preferably a cleaning method in which dust adhering to the filter is sucked and cleaned by a suction nozzle, and the sucked dust is collected in a dust collector or discharged to the outside.

  An object of the present invention is to solve the above-described conventional problems, and in an air conditioner filter device capable of performing automatic suction cleaning of the entire surface of an air filter, an object of the present invention is to reliably perform an air filter attachment / detachment operation. To do.

  In order to solve the above problems, the present invention provides an air filter that removes dust of air that passes through a heat exchanger, a suction nozzle that can be driven along the air filter, the air filter, and the suction nozzle. In a filter device of an air conditioner having an air filter that is supported and fixed at a position, the air filter is provided with one or more claw portions for supporting and fixing the air filter to the air filter. A protrusion perpendicular to the back surface of the claw is provided.

  According to the above configuration, when the air filter is attached / detached, the protrusion on the back surface of the nail portion of the air filter is stored in the nail of the air filter-wax when it is not securely attached to the air filter-wax. When the air filter hits the surface of the part, the air filter floats greatly, and a mounting abnormality can be visually notified. As a result, it is possible to prevent the vehicle from being operated without noticing the abnormal mounting of the air filter.

According to the second aspect of the invention, in the air filter-work, an L-shape is formed at a position opposite to the claw portion of the air filter so as to be the same height as or lower than the surface of the air filter. A claw receiving portion is provided, and a groove for guiding to the claw receiving portion is provided along the mounting direction of the air filter. The air filter claw portion is provided on the back surface of the air filter-wax claw receiving portion. It is characterized by being provided at a lower position.

  With the above configuration, the claw portion of the air filter is inserted to the predetermined position along the groove portion of the filter-wound, so that the claw portion of the air filter is securely attached to the claw-receiving portion of the filter-wound. The air filter is attached to the air filter-workpiece while maintaining a certain gap between the air filter and the suction nozzle. If the air filter is to be attached without being along the groove of the filter-workpiece, and the claw portion of the air filter is not stored in a predetermined position, the protrusion on the back of the claw portion of the air filter Hits the claw-receiving portion of the filter-wound, and the air filter floats up so that a mounting abnormality can be visually notified. As a result, it is possible to prevent the air filter from being operated without noticing the mounting abnormality of the air filter, and the suction nozzle is smoothly driven without being caught by the air filter, and the attached dust is removed. It becomes possible to perform automatic suction cleaning reliably.

  The filter device for an air conditioner according to the present invention prevents the air filter from being operated without being noticed of an air filter attachment abnormality, and automatically and smoothly ensures that the dust adhering to the air filter is sucked by the suction nozzle. It can be cleaned by suction and allows the construction of this type of filter device.

  The first invention is an air filter that removes dust of air passing through a heat exchanger, a suction nozzle that can be driven along the air filter, and the air filter and the suction nozzle supported and fixed at predetermined positions. In the filter device of an air conditioner having an air filter to be operated, a single or a plurality of claw portions for supporting and fixing the air filter to the air filter vac are provided on the air filter, and the back surface of the claw portion A projection perpendicular to the air filter is provided, so that when the air filter is attached / detached, the nail portion of the air filter is not attached to the air filter. The protrusion on the back surface touches the surface of the nail storage part of the air filter, and the air filter floats up to visually notify the mounting abnormality. . As a result, it is possible to prevent the vehicle from being operated without noticing the abnormal mounting of the air filter.

  According to a second aspect of the present invention, in the air filter-work, an L-shaped claw receiving portion is provided at a position facing the claw portion of the air filter so as to be the same height as or lower than the surface of the air filter. In addition, a groove for guiding to the claw receiving portion is provided along the direction in which the air filter is attached and inserted, and the claw portion of the air filter is positioned lower than the back surface of the claw receiving portion of the air filter. The claw part of the air filter is inserted into the predetermined position along the groove part of the filter-wound so that the claw part of the air filter is The air filter is securely stored in the claw receiving portion of the filter vacuum, and the air filter is attached to the air filter vacuum while maintaining a certain gap between the air filter and the suction nozzle. If the air filter is to be attached without being along the groove of the filter-workpiece, and the claw portion of the air filter is not stored in a predetermined position, the protrusion on the back of the claw portion of the air filter Hits the claw-receiving portion of the filter-wound, and the air filter floats up so that a mounting abnormality can be visually notified. As a result, it is possible to prevent the air filter from being operated without noticing the mounting abnormality of the air filter, and the suction nozzle is smoothly driven without being caught by the air filter, and the attached dust is removed. It becomes possible to perform automatic suction cleaning reliably.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 to 7 are diagrams showing a configuration example of a filter device of an air conditioner according to Embodiment 1 of the present invention.

  FIG. 1 is a perspective view showing an indoor unit of an air conditioner to which Embodiment 1 of the present invention is applied. In FIG. 2, an air filter 2 that removes dust from the air that passes through the heat exchanger is supported and fixed to the filter cloth 1, and a suction nozzle 3 that is movable along the surface of the air filter 2 is provided. 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 duct 5 is connected to the suction nozzle 3, and the suction duct 5 is further connected to a suction device 6. The suction duct 5 is formed of a duct that can be bent so as not to interfere with the movement of the suction nozzle 3. 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.

  As shown in FIG. 3, the suction nozzle 3 includes a nozzle 8 that forms a flow path of the sucked wind, a film 9 that is provided so as to surround the nozzle 8, and a gear that supports the film 9 and transmits a driving force. 14 and rollers 15a, 15b, 15c for supporting the film 9 and driving it smoothly. On the surface of the nozzle 8 on the air filter side, a slit-like nozzle opening 10 having a length corresponding to the vertical length of the air filter 2 is provided. On the other hand, the film 9 is formed in a loop shape and is wound around the outer periphery of the nozzle 8 so as to cover the nozzle opening 10, and an opening 16 corresponding to the nozzle opening 10 is provided on the surface on the air filter side. 17 is supported. The film 9 is provided with a slit-like suction hole 11, and the film 9 is attached at a position where the suction hole 11 is opposed to the nozzle opening 10. Equally spaced drive holes are provided at both ends of the film 9, and the gear 9 connected to the stepping motor 13 is engaged with the drive holes so that the film 9 can be freely driven in any of the vertical directions. ing. 3 is a cross-sectional view taken along the line AA in FIG.

  With the configuration described above, the air volume sucked by the suction device 6 is concentrated and concentrated in the suction hole 11, so that it is possible to generate a strong wind speed in the suction hole 11 portion even with a small air volume. That is, it is possible to exert a strong suction force with a small output. Dust on the air filter sucked by this strong suction force enters the nozzle 8 from the suction hole 11 through the nozzle opening 10, and further discharges outside through the suction duct 5, the suction device 6 and the exhaust duct 7. Is done. Then, every time the suction nozzle 3 is driven left and right, the suction hole 11 provided in the film 9 is changed, whereby the entire surface of the air filter can be suction-cleaned.

  At this time, in order to reliably perform the suction cleaning, it is important to keep the gap between the suction nozzle 3 and the air filter 2 constant. Since the air filter 2 is configured to be detachable from the air filter-work 1, as shown in FIG. 4, a certain gap is maintained unless the air filter-2 is securely attached to the air filter-work 1. In addition, the suction nozzle 3 is caught by the air filter-2 due to the floating of the air filter-2, and the driving of the suction nozzle 3 is hindered.

Therefore, as shown in FIGS. 5 and 6, one or more claw portions 2t for supporting and fixing the air filter-2 to the air filter-vacuum 1 are provided on the air filter-2, and a protrusion perpendicular to the back surface of the claw portion 2t. Portion 2tk, and as shown in FIG. 7, when the air filter-2 is attached or detached, the air filter must be securely attached to the air filter. The protrusion 2tk on the back surface of the claw portion 2t hits the surface 1a of the claw storage portion of the air filter-work 1, and the air filter-2 floats greatly, so that an abnormal mounting can be visually notified. As a result, it is possible to prevent the vehicle from being operated without noticing the mounting abnormality of the air filter-2.

(Embodiment 2)
8-10 is the figure which showed the structural example of the filter apparatus of the air conditioner in Embodiment 2 of this invention.

  As shown in FIGS. 8 and 9, in the air filter 1, an L-shaped nail is formed at a position opposite to the air filter claw 2 t so as to be the same height as or lower than the surface of the air filter 2. A receiving portion 1t is provided, and a groove 1m for guiding to the claw receiving portion 1t is provided along the mounting direction of the air filter-2. The claw portion 2t of the air filter is connected to the claw receiving portion 1t of the air filter-wax. It is characterized in that it is provided at a position lower than the back surface. By this, the nail portion 2t of the air filter is inserted to a predetermined position along the groove portion 1m of the filter work, so that the nail of the air filter The portion 2t is securely stored in the filter-wax claw receiving portion 1t, and the air filter-2 is attached to the air filter-wax 1 while maintaining a certain gap between the air filter-2 and the suction nozzle 3. . If the air filter-2 is to be installed without being along the groove 1m of the filter-work and the claw portion 2t of the air filter is not stored at a predetermined position, as shown in FIG. The protrusion 2tk on the back of the claw part 2t hits the filter-claw claw receiving part 1t, and the air filter-2 floats greatly, so that it is possible to visually notify the mounting abnormality. As a result, it is possible to prevent the air filter 2 from being operated without noticing the mounting abnormality of the air filter 2, and the suction nozzle 3 can be smoothly driven without being caught by the air filter 2, and the attached dust can be removed. It becomes possible to perform automatic suction cleaning reliably.

  As described above, the filter device for an air conditioner according to the present invention prevents the air filter from being operated without being noticed of the air filter mounting abnormality, and removes dust adhering to the air filter by the suction nozzle. Therefore, it is possible to reliably perform automatic suction cleaning and to enable the configuration of this type of filter device, so that it can be applied to various types of filter devices.

The perspective view of the indoor unit of the air conditioner in Embodiment 1 of this invention The perspective view which showed the structure of the filter apparatus of the air conditioner in Embodiment 1 of this invention Sectional drawing of the suction nozzle in Embodiment 1 of this invention 1 is a perspective view showing a configuration of a filter device for an air conditioner according to Embodiment 1 of the present invention. FIG. The perspective view which showed the structure of the air filter in Embodiment 1 of this invention. Sectional drawing which showed the structure of the air filter and air filter cloth in Embodiment 1 of this invention Sectional drawing which showed the structure of the air filter and air filter cloth in Embodiment 1 of this invention The perspective view which showed the structure of the air filter in Embodiment 2 of this invention. Sectional drawing which showed the structure of the air filter and air filter cloth in Embodiment 2 of this invention Sectional drawing which showed the structure of the air filter and air filter cloth in Embodiment 2 of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Filter excrement 1t Filter-excrement claw receiving part 1m Filter-excrement groove part 2 Air filter 2t Air filter claw part 3 Suction nozzle 4 Guide rail 5 Suction duct 6 Suction device 7 Exhaust duct 8 Nozzle 9 Film 10 Nozzle opening 11 Suction hole 12 Drive hole 13 Stepping motor 14 Gear 15a Roller 15b Roller 15c Roller 16 Opening 17 Film guide

Claims (2)

An air filter that removes dust from the air passing through the heat exchanger, a suction nozzle that can be driven along the air filter, and an air filter that supports and fixes the air filter and the suction nozzle at predetermined positions. In the filter device of an air conditioner, the air filter has one or more claw portions for supporting and fixing the air filter to the air filter, and a protrusion perpendicular to the back surface of the claw portion is provided. An air conditioner filter device characterized by being provided. In the air filter-work, an L-shaped claw receiving portion is provided at a position facing the claw portion of the air filter so as to be the same height as or lower than the surface of the air filter, and the claw receiving portion A groove portion for guiding the air filter is provided along a direction in which the air filter is mounted, and the claw portion of the air filter is provided at a position lower than the back surface of the claw receiving portion of the air filter-workpiece. The air conditioner filter device according to claim 1.

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