JP2005147546A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner allowing easy cleaning without detaching an air filter from air conditioner body. <P>SOLUTION: This air conditioner has: the air filter 2 collecting dust included in air flowing into a heat exchanger (not shown in Figure); a filter frame 1 supporting and fixing the air filter 2; a suction nozzle 3 movable right and left along a surface on the upstream side of the air filter 2; and a suction device 7 connected to the suction nozzle 3. By only operating the suction device 7 while moving the suction nozzle 3 right and left along the surface on the upstream side of the air filter 2 with the air filter 2 installed to the air conditioner body (not shown in Figure), the dust adhering to the whole face of the air filter 2 can be easily removed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

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

  In a conventional air conditioner, an air filter for preventing dust from entering the inside of the air conditioner main body is provided on the front surface of the heat exchanger, and this air filter can clean the attached dust by hand. It was attached so as to be detachable.

  Not only do these air filters require frequent maintenance, but the air filters gradually become clogged until maintenance is performed, resulting in a reduction in the amount of air passing through the heat exchanger and air conditioning capacity. Decreases, leading to an increase in power consumption.

Therefore, in order to reduce the maintenance work of the filter, a belt-like air filter stretched around the drive shaft and a rotating brush in contact with the surface of the air filter are provided, and the air filter is moved by rotating the drive shaft. There is also an air conditioner in which dust accumulated on the surface is scraped by rotating a rotary brush (see, for example, Patent Document 1).
JP-A-6-74521

  However, in the above-described prior art, the brush and the air filter are rubbed against each other, so that there is a problem that dust is entangled with the brush, or the function of removing dust attached to the air filter is remarkably lowered due to wear or deformation of the brush.

  An object of the present invention is to solve the above-mentioned conventional problems, and to provide an easy-to-maintain air conditioner that automatically sucks dust adhering to the air filter without removing the air filter from the air conditioner body. To do.

  In order to solve the conventional problems, an air conditioner according to the present invention includes a heat exchanger, an air filter that collects dust of air flowing into the heat exchanger, and a filter work that supports and fixes the air filter. And a suction nozzle movable to the left and right along the upstream surface of the air filter, and a suction device connected to the suction nozzle, with the air filter attached to the main body of the air conditioner By simply operating the suction device while moving the suction nozzle to the left and right along the upstream surface of the air filter, dust attached to the entire surface of the air filter can be easily removed, and suction Since the device is built-in, there is no need to use an external vacuum cleaner for dust suction.

  The air conditioner of the present invention can automatically and satisfactorily perform the suction cleaning of dust adhering to the air filter without removing the air filter.

According to a first aspect of the present invention, there is provided a heat exchanger, an air filter that collects dust of air flowing into the heat exchanger, a filter wax that supports and fixes the air filter, and an upstream surface of the air filter. A suction nozzle that is movable to the left and right, and a suction device connected to the suction nozzle, the air filter being attached to the main body of the air conditioner while the suction nozzle is connected to the upstream surface of the air filter The dust attached to the entire surface of the air filter can be easily removed just by operating the suction device while moving it left and right along the There is no need to use a vacuum cleaner.

  The second invention particularly supports the suction nozzle of the first invention by a shaft provided on one of the upper and lower sides of the filter wax and a guide rail provided on the other, and the upper part of the suction nozzle. By supporting the lower part, the gap between the suction nozzle and the surface of the air filter is kept constant, and the entire surface of the air filter can be satisfactorily cleaned.

  According to the third aspect of the invention, in particular, a pulley is provided in a portion that slides along the guide rail of the suction nozzle of the second aspect of the invention, whereby friction is reduced and the suction nozzle can be moved smoothly.

  In the fourth aspect of the invention, in particular, the shaft of the second or third aspect of the invention has a hollow structure, and the shaft is lighter and can be bent by its own weight, so that it is supported by this shaft. The suction nozzle can be moved with stable operation.

  In the fifth aspect of the invention, in particular, a second guide rail that receives the rib in the vicinity of the shaft of the suction nozzle of any one of the second to fourth aspects and the filter cloth and receives the rib in the other is provided. Therefore, since the rib provided on the filter cloth or the second guide rail receives the weight of the suction nozzle, the deflection of the shaft supporting the suction nozzle can be further reduced, and the suction nozzle is more stable. It is possible to move.

  The sixth aspect of the invention is a belt connected to a part of the suction nozzle as a moving means for moving the suction nozzle of any one of the first to fifth inventions to the left and right, and a drive motor for driving the belt. Since the contact between the belt and the drive motor becomes surface contact, the drive force from the drive motor can be transmitted to the suction nozzle via the belt without slipping.

  In the seventh aspect of the invention, in particular, a screw is formed on the outer peripheral portion of the shaft of any one of the second to fifth aspects of the invention, and a female screw that is screwed into the male screw is inserted into a portion of the suction nozzle that the shaft passes through. The suction nozzle is moved left and right by rotating the shaft, and the suction nozzle can be moved simply by rotating the shaft without interposing other power transmission parts such as rollers. Therefore, a strong driving force can be transmitted, the configuration of the driving mechanism is simplified, and the number of failures is reduced.

  In the eighth aspect of the invention, in particular, the central part of the shaft of the seventh aspect is made of a metal material and the male screw part is made of a resin material. The shaft becomes lighter, and the bending due to the weight of the shaft is reduced. The nozzle can be moved smoothly, and the male screw part can be obtained by resin molding, so that the manufacturing cost can be reduced.

  In the ninth aspect of the invention, in particular, the exhaust side of the suction device according to any one of the first to eighth aspects is communicated with the outside, and the sucked dust is collected outside the air every time the air filter is cleaned by the suction nozzle. Therefore, it is possible to provide an air conditioner that is extremely easy to use and saves time and labor for dust treatment.

  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 configuration of an air filter mounting portion of an air conditioner according to Embodiment 1 of the present invention, and FIG. 2 is a cross-sectional view of a suction nozzle of the air conditioner (cross section AA in FIG. 1). ).

  1 and 2, reference numeral 2 denotes an air filter that is disposed upstream of a heat exchanger (not shown) and removes dust from the air flowing into the heat exchanger. A suction nozzle 3 that can be driven right and left is provided along the upstream surface of the filter 2.

  The suction nozzle 3 is supported by a shaft 4 installed at the lower end of the filter bag 1 and a guide rail 5 installed at the upper end with a very narrow clearance from the surface of the air filter 2 so as to be slidable. Further, a wire 10 is connected to the suction nozzle 3, and the wire 10 is supported by rollers 9 provided at the left and right ends of the filter cloth 1, and a drive motor 11 is connected to one of the rollers 9. Yes. On the back surface of the suction nozzle 3, as shown in FIG. 3, there is provided a slit-like suction hole 12 that opens to face the surface of the air filter 2.

  A suction duct 6 has one end connected to the suction nozzle 3 and the other end connected to the suction device 7. The suction duct 6 is formed of a flexible bellows hose that can be bent so as not to interfere with the movement of the suction nozzle 3. The suction device 7 incorporates an electric blower (not shown), and the exhaust of the electric blower is exhausted to the outside through an exhaust duct 8 connected to the rear part.

  The operation and action of the air conditioner thus configured will be described. In addition, since the cooling / heating operation of this air conditioner is the same as the conventional one, its description is omitted.

  When the operation of the suction device 7 is started after the operation of the air conditioner main body is stopped, air is sucked from the suction hole 12 provided on the back surface of the suction nozzle 3 to which the suction duct 6 is connected. The suction nozzle 3 located at the right end of the air filter 2 is moved to the left end along the air filter 2 by the wire 10 connected thereto by operating the drive motor 11. At this time, the dust adhering to the surface of the air filter 2 is sucked from the suction hole 12 provided in the suction nozzle 3, and the dust is discharged outside through the suction duct 6, the suction device 7, and the exhaust duct 8, Dust adhering to the entire surface of the air filter can be sucked and cleaned. Further, when the drive motor 11 is rotated in the reverse direction, the suction nozzle 3 can move rightward and return to the original position (the right end of the air filter 2).

  In order to perform the above-described suction cleaning satisfactorily, it is important to keep the gap between the air filter 2 and the suction nozzle 3 constant. In this embodiment, the suction nozzle 3 is the filter Since the shaft 4 provided at the lower end and the guide rail 5 provided at the upper end of the filter casing 1 are firmly supported and slidable, a stable operation can be obtained while keeping the gap between the air filter 2 constant and good. It becomes possible to perform simple suction cleaning.

  The automatic suction cleaning operation of the filter 2 may be performed during the operation of the air conditioner.

(Embodiment 2)
FIG. 4 is a cross-sectional view of the air filter attachment portion of the air conditioner according to Embodiment 2 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.

  A pin 13 is fixed to the upper end portion of the suction nozzle 3, a pulley 14 is rotatably provided on the pin 13, and a concave groove 14 a is formed on the outer periphery of the pulley 14. On the other hand, the filter rail 1 is provided with a guide rail 5 at a position facing the groove 14 a of the pulley 14, and the pulley 14 is engaged with the guide rail 5 to support the suction nozzle 3.

  According to this embodiment, when the suction nozzle 3 moves along the air filter 2, the pulley 14 provided at the upper end of the suction nozzle 3 rotates along the guide rail 5 provided in the filter cloth 1. The sliding resistance between the rail 5 and the suction nozzle 3 is reduced, and the suction nozzle 3 can move more smoothly.

  A plurality of pulleys 14 may be provided in the moving direction of the suction nozzle 3.

  Further, as shown in FIG. 5, if the shaft 4 provided in the filter case 1 has a hollow structure, the bending due to the weight of the shaft 4 is reduced, so that the suction nozzle 3 that is supported by the shaft 4 moves, It is possible to move while keeping the gap with the air filter 2 more constant.

  Further, as shown in FIG. 6, a rib 16 is formed in the vicinity of the portion where the shaft 4 of the suction nozzle 3 penetrates, and a second guide rail 5 a is provided at a portion facing the rib 16 of the filter wax 1, If the rib 16 is supported by the second guide rail 5a and slidably meshed, the weight of the suction nozzle 3 is handled by the second guide rail 5a. The deflection of the shaft 4 is reduced as in the above example, and the suction nozzle 3 can move while keeping the gap with the air filter 2 more constant.

  The same effect can be obtained by providing the rib 16 on the filter casing 1 and the second guide rail 5a on the suction nozzle 3 side.

(Embodiment 3)
FIG. 7 is a cross-sectional view of the filter device according to Embodiment 3 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 above embodiment, the wire 10 that is moved by the roller 9 that is rotationally driven by the drive motor 11 is used as the means for moving the suction nozzle 3 in the left-right direction. However, in this embodiment, the belt 17 is used. is there. The belt 17 is looped around rollers 9 provided at the left and right ends of the filter cloth 1, and a part of the belt 17 is connected to the suction nozzle 3.

  According to this embodiment, since the hanging margin (contact area) between the belt 17 and the roller 9 can be made larger than in the case of the wire 10, the suction nozzle 3 does not slip the driving force from the driving motor 11. The suction nozzle 3 can be moved stably.

(Embodiment 4)
FIG. 8 is a cross-sectional view of a main part of an air filter attachment part of an air conditioner according to Embodiment 4 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 first, second and third embodiments, the roller 9 is interposed as means for moving the suction nozzle 3, but in this embodiment, as shown in FIG. The end portion of the suction nozzle 3 is connected to the drive motor 11, and a female screw is formed in the portion of the suction nozzle 3 through which the shaft 4 penetrates. It is a thing.

  According to the above configuration, since the shaft 4 and the suction nozzle 3 are screw-fitted, the suction nozzle 3 can be moved along the air filter 2 by rotating the shaft 4 with the drive motor 11. According to the present embodiment, the wire 10 and the belt 17 described in the above embodiment, the roller 9 that holds them, and the like can be eliminated, and there is no loss at that portion, so transmission from the drive motor 11 You can improve your power further.

  Further, as shown in FIG. 9, if the central portion of the shaft 4 in the fourth embodiment is formed of a metal material and a male screw is formed on the surface thereof with a resin material, the entire shaft 4 is made of metal. Thus, the weight can be reduced as compared with the case of forming the shaft 4, so that the deflection due to the weight of the shaft 4 can be reduced, and a good driving operation of the suction nozzle 3 can be obtained. In addition, since the male thread on the surface of the shaft 4 can be formed by resin molding, the manufacturing time can be reduced and the shaft can be formed at low cost.

  As described above, the air conditioner according to the present invention can automatically and satisfactorily perform dust suction cleaning on the air filter without removing the air filter. It can be widely applied to air cleaners and the like.

The perspective view of the filter attachment part of the air conditioner in Embodiment 1 of this invention AA sectional view of FIG. (A) Side view of the suction nozzle of the air conditioner, (b) Back view of the suction nozzle Sectional drawing (AA cross section of FIG. 1) of the filter attachment part of the air conditioner in Embodiment 2 of this invention Sectional drawing of the filter attachment part of the air conditioner which shows another example (AA cross section of FIG. 1) Sectional drawing of the filter attachment part of the air conditioner which shows another example (AA cross section of FIG. 1) Sectional drawing (AA cross section of FIG. 1) of the filter attachment part of the air conditioner in Embodiment 3 of this invention Sectional drawing of the principal part of the filter attachment part of the air conditioner in Embodiment 4 of this invention (BB cross section of FIG. 3). Sectional drawing of the principal part of the filter attachment part which shows another example (BB cross section of FIG. 3)

Explanation of symbols

1 Filter Waku 2 Air Filter 3 Suction Nozzle 4 Shaft 5 Guide Rail 5a Second Guide Rail 6 Suction Duct 7 Suction Device 8 Exhaust Duct 9 Roller 10 Wire 11 Drive Motor 12 Suction Hole 14 Pulley 16 Rib 17 Belt

Claims (9)

A heat exchanger, an air filter that collects dust of air flowing into the heat exchanger, a filter cloth that supports and fixes the air filter, and a suction that can move left and right along the upstream surface of the air filter An air conditioner comprising a nozzle and a suction device connected to the suction nozzle. An air conditioner characterized in that the suction nozzle is supported by a shaft provided on one of the upper and lower sides of the filter cloth and a guide rail provided on the other. The air conditioner according to claim 2, wherein a pulley is provided at a portion that slides along the guide rail of the suction nozzle. The air conditioner according to claim 2 or 3, wherein the shaft has a hollow structure. The air conditioner according to any one of claims 2 to 4, wherein a second guide rail that receives the rib in the vicinity of the shaft of the suction nozzle and the filter wax and the rib in the other is provided. Machine. 6. The moving means for moving the suction nozzle to the left and right comprises a belt connected to a part of the suction nozzle and a drive motor for driving the belt. The air conditioner described. A screw is formed on the outer periphery of the shaft, a female screw that is screw-fitted to the male screw is formed at a portion of the suction nozzle through which the shaft passes, and the suction nozzle is moved left and right by rotating the shaft. The air conditioner according to any one of claims 2 to 5, wherein 8. An air conditioner according to claim 7, wherein the central portion of the shaft is formed of a metal material and the male screw portion is formed of a resin material. The air conditioner according to any one of claims 1 to 8, wherein an exhaust side of the suction device is communicated with an outdoor side.

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