JP4645059B2 - Filter device and air conditioner - Google Patents

Description

  The present invention relates to a filter device that automatically cleans a filter and an air conditioner using the same.

  In a filter device used in a conventional air conditioner or the like, an air filter is provided on the front surface of the heat exchanger in order to prevent dust from entering the inside of the main body of the air conditioner. It was detachable so that dust could be cleaned by hand or a vacuum cleaner. In such a filter device, not only does the air filter need to be frequently maintained, but the air filter gradually clogs until the maintenance is performed, and as a result, the air volume passing through the heat exchanger However, there was a problem that the air conditioning capacity was reduced and the power consumption was increased.

In order to solve this problem and reduce the maintenance work of the air filter, an automatic cleaning device has been devised that includes a belt-like air filter and periodically cleans dust adhering to the air filter with a brush ( For example, see Patent Document 1).
JP 2001-99479 A

  However, the above-described conventional techniques have problems such as the brush and the air filter being rubbed against each other, so that dust is entangled with the brush, and the cleaning function is deteriorated due to wear or deformation of the brush.

  The present invention solves the above-described conventional problems, and provides an easy-to-use filter device that can automatically clean the surface of an air filter without using consumable parts such as a brush, and an air conditioner using the same. The purpose is to do.

In order to solve the above-described conventional problems, a filter device according to the present invention includes an air filter including a filter bar and a net formed integrally with the filter bar, and collecting dust on an upstream surface of the air filter. A suction nozzle that sucks dust collected by the air filter, and a suction device connected to the suction nozzle. The filter bar is formed by a vertical beam and a horizontal beam, and the horizontal beam is formed. A rib that protrudes toward the suction nozzle from the surface of the suction bar side of the vertical beam and the horizontal beam is provided on the surface of the suction nozzle side of only the beam, without using consumable parts such as a brush. In addition to automatically sucking and cleaning dust on the air filter, the ribs are less likely to be deformed by the ribs, so the gap between the air filter and the suction nozzle can always be kept constant. , It is possible to perform good suction cleaning of the dust on the air filter.

  Moreover, the air conditioner of this invention is a heat exchanger, the fan distribute | arranged to the downstream of the said heat exchanger, and any one of Claims 1-5 distribute | arranged to the upstream of the said heat exchanger. It is possible to provide an air conditioner that can automatically and reliably suck and clean dust adhering to an air filter.

  The filter device of the present invention can surely automatically suck and clean dust adhering to an air filter of an air conditioner with a suction nozzle without using consumable parts such as a brush.

According to a first aspect of the present invention, there is provided an air filter comprising a filter bar and a net formed integrally with the filter bar, and collecting dust. The air filter is movable along the upstream surface of the air filter and is captured by the air filter. A suction nozzle for sucking the collected dust, and a suction device connected to the suction nozzle, forming the filter bar with a vertical beam and a horizontal beam, on the surface of the suction nozzle side of only the horizontal beam, Provided with ribs projecting to the suction nozzle side from the suction nozzle side surface of the vertical beam and the horizontal beam, dust on the air filter can be automatically sucked and cleaned without using consumable parts such as a brush At the same time, the ribs are less likely to be deformed by the ribs, so that the gap between the air filter and the suction nozzle can be kept constant at all times. Ukoto can.

  In the second invention, in particular, the air filter of the first invention is formed with a plurality of planes, and the unevenness of the net of the air filter can be reduced, so that dust adhering to the air filter is reliably sucked and cleaned. It becomes possible to do.

  In the third invention, in particular, the corners of the horizontal beam provided at the junction between the adjacent flat surfaces of the second invention are provided with rounded corners, and the integral formability of the filter beam and the net is improved. The suction performance of the suction nozzle can be improved.

  In the fourth aspect of the invention, in particular, the air filter according to any one of the first to third aspects is divided into at least two parts, and the mold is downsized and the investment amount is reduced. Filter device can be provided.

  In the fifth aspect of the invention, in particular, C-cut or rounding is performed along the longitudinal direction of the suction nozzle at both side corners of the surface of the suction nozzle according to any one of the first to fourth aspects facing the air filter. When moving the suction nozzle, the dust on the air filter is not scraped off at the corners, so the dust attached to the air filter can be sucked in with the suction nozzle and better suction cleaning is possible. It becomes.

  6th invention is the filter of any one of Claims 1-5 distribute | arranged to the heat exchanger, the fan distribute | arranged to the downstream of the said heat exchanger, and the upstream of the said heat exchanger. By providing the apparatus, it is possible to provide an air conditioner that can automatically and reliably suck and clean dust adhering to the air filter.

  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 is a perspective view showing a filter device of an air conditioner according to Embodiment 1 of the present invention, FIG. 2 is a perspective view of the air filter of the air filter device, and FIG. 3 is a sectional view of the filter device (FIG. 1). 4 is a cross-sectional view of the suction nozzle.

  In FIG. 1, a filter device includes an air filter 2 that removes dust contained in air flowing into a heat exchanger (not shown) of an air conditioner and the like, and is supported and fixed to a filter cloth 1. It is comprised from the suction nozzle 3 which can move along. As shown in FIG. 2, the air filter 2 is configured by three or more planes along the shape of the heat exchanger, and the suction nozzle 3 is a guide rail 4 installed at the upper and lower ends of the filter cloth 1. Thus, the air filter 2 can smoothly move left and right while maintaining a very narrow gap with the upstream surface of the air filter 2.

  Dust adhering to the air filter 2 is sucked from the suction nozzle 3. Furthermore, one end of a suction duct 5 is connected to the suction nozzle 3, and the other end of the suction duct 5 is 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 in the left-right direction. Further, one end of an exhaust duct 7 is connected to the suction device 6, the other end of the exhaust duct 7 is released to the outside, and dust on the air filter 2 sucked by the suction nozzle 3 is sucked into the suction duct 5 and the suction device 6. The air is discharged to the outside through the exhaust duct 7.

  Further, as shown in FIG. 3, the suction nozzle 3 transmits a driving force by supporting the film 9 provided around the nozzle 8, the nozzle 8 constituting the flow path of the sucked wind, and the film 9. It comprises a gear 14 and rollers 15a, 15b, 15c for supporting and driving the film 9 smoothly. A slit-like nozzle opening 10 having a length corresponding to the vertical length of the air filter 2 is provided on the surface of the nozzle 8 facing the air filter 2.

  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 the air filter 2 side surface is provided with an opening 16 corresponding to the nozzle opening 10. Supported by a guide 17. A slit-like suction hole 11 is provided in the film 9, and the suction hole 11 is attached at a position facing the nozzle opening 10. Equally spaced drive holes 9 a are provided at both ends of the film 9, and the gear 9 connected to a stepping motor (not shown) meshes with the drive holes so that the film 9 can be freely moved in any direction. It can be driven.

  The operation and action of the air conditioner configured as described above are as follows.

  Since the air sucked by the suction device 6 is concentrated in the suction hole 11 of the film 9 and concentrated, it is possible to generate a strong wind speed at the suction hole 11 portion even with a small amount of air. That is, it is possible to exert a strong suction force with a small output. Dust on the air filter 2 sucked by this strong suction force enters the nozzle 8 from the suction hole 11 through the nozzle opening 10, and further to the outside through the suction duct 5, the suction device 6 and the exhaust duct 7. Discharged. Then, every time the suction nozzle 3 is driven left and right, the entire surface of the air filter 2 can be suction-cleaned by moving the suction hole 11 provided in the film 9 up and down.

  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. However, as shown in FIG. 2, since the air filter 2 is formed by integrally molding a resin fiber net 2b on a resin filter bar 2a, it has a feature of being easily deformed.

  When the gap is reduced by this deformation, dust adhering to the air filter 2 is scraped off in contact with the suction nozzle 3 before being sucked by the suction nozzle 3, so that it is not sucked from the suction hole 11. Therefore, as shown in FIGS. 2 and 3, by providing ribs 18 having a substantially semicircular cross section at several locations on the horizontal rail 2 c of the air filter 2, a constant gap can be obtained, and the suction nozzle 3 can be Since it is possible to prevent direct contact with the dust adhering to 2, good suction cleaning can be performed from the suction hole 11.

  In addition, since the air filter 2 is configured by three or more planes along the shape of the heat exchanger, the unevenness of the net 2b of the air filter 2 can be reduced, so that the gap with the suction nozzle 3 is further increased. It can be kept constant, and the dust adhering to the air filter 2 can be reliably sucked and cleaned.

  Further, as shown in FIGS. 3 and 5, if the corners of the horizontal beam 2c provided at the junction between the adjacent planes of the air filter 2 are rounded, the horizontal beam 2c and the net While improving the integral formability of 2b and making the suction nozzle 3 R-shaped, the slidability and sealability of the film 9 can be improved, so that the suction performance can be improved.

(Embodiment 2)
FIG. 6 is a perspective view of an air filter of the filter device according to the second embodiment of the present invention. The same parts as those in the above embodiment are denoted by the same reference numerals and the description thereof is omitted.

  In the present embodiment, as shown in FIG. 6, the capacity of the molding machine used at the time of molding can be reduced by configuring the air filter 2 in two parts, so that the mold investment amount is reduced and the cost is low. A filter device can be provided.

(Embodiment 3)
FIG. 7 is a cross-sectional view of the suction nozzle of the filter device according to the third embodiment of the present invention. The same parts as those in the above embodiment are denoted by the same reference numerals and the description thereof is omitted.

  In the present embodiment, C-cuts are provided along the longitudinal direction of the nozzle 8 at the corners 19 at both ends of the film guide 17 facing the air filter 2. Thereby, when the suction nozzle 3 is moved in the left-right direction, dust attached to the air filter 2 is not caught on the end of the film guide 17 of the suction nozzle 3 and can be smoothly drawn into the suction hole 11. Good suction cleaning is possible.

  In addition, as shown in FIG. 8, the same effect can be obtained by rounding the corner portion 19 in an arc shape instead of the C cut.

  Although not particularly illustrated, in the air conditioner including a heat exchanger and a fan provided on the downstream side of the heat exchanger, the filter device described in the above embodiment is provided on the upstream side of the heat exchanger. If installed, it is possible to provide an air conditioner that is extremely easy to use and can automatically and reliably suck and clean the dust adhering to the air filter 2 and discard it.

  As described above, the filter device and the air conditioner according to the present invention automatically remove dust adhering to the air filter without using consumable parts such as a brush, and are extremely easy to use. The present invention can be widely applied to a ventilation device, an air cleaner, and a blower device using a filter.

The perspective view of the filter apparatus in Embodiment 1 of this invention Perspective view of the air filter of the air filter device Sectional view of the filter device (cross-sectional view taken along the line AA in FIG. 1) (A) Cross-sectional view of suction nozzle of the filter device, (b) BB cross-sectional view of FIG. 4 (a) The perspective view of the air filter of the filter apparatus which shows another example The perspective view of the air filter of the filter apparatus in Embodiment 2 of this invention Sectional drawing of the suction nozzle of the filter apparatus in Embodiment 3 of this invention Sectional drawing of the suction nozzle of the filter apparatus which shows another example

DESCRIPTION OF SYMBOLS 1 Filter pump 2 Air filter 2a Filter bar 2b Net 2c Horizontal bar 2d Vertical bar 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 15a Roller 15b Roller 15c Roller 16 Opening 17 Film guide 18 Rib

Claims (6)

An air filter that consists of a filter bar and a net formed integrally with the filter bar, and that collects dust, and is movable along the upstream surface of the air filter and sucks the dust collected by the air filter A suction nozzle connected to the suction nozzle, the filter bar is formed by a vertical beam and a horizontal beam, and the vertical beam and the horizontal beam are formed on a surface of the horizontal nozzle only on the suction nozzle side. 2. A filter device comprising a rib protruding to the suction nozzle side from a surface of the cross on the suction nozzle side. The filter device according to claim 1, wherein the air filter is formed of a plurality of planes. The filter device according to claim 2, wherein a round portion is provided at a corner portion of a horizontal rail provided at a joint portion between adjacent flat surfaces. The filter device according to any one of claims 1 to 3, wherein the air filter is divided into at least two parts. 5. The filter device according to claim 1, wherein C-cut or rounding is performed along the longitudinal direction of the suction nozzle at both side corners of the surface of the suction nozzle facing the air filter. . An air conditioner equipped with a heat exchanger, a fan disposed on the downstream side of the heat exchanger, and the filter device according to any one of claims 1 to 5 disposed on the upstream side of the heat exchanger. Machine.

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