JP2007101106A - Air conditioner filter device - Google Patents

Abstract

An object of the present invention is to prevent dust from remaining in an air filter of an air conditioner.
An air filter that removes dust, a nozzle opening that moves along the air filter and corresponds to the entire length of the air filter, covers the nozzle opening so as to close the nozzle opening, A suction nozzle in which a belt is disposed along the opening, a suction hole is provided on the nozzle opening, and the position of the suction hole can be moved by driving the belt each time the suction nozzle reciprocates along the air filter. And a detecting means for detecting the position of the suction hole, so that the suction nozzle can be reciprocated according to the position of the suction hole, and the drive amount of the belt is divided and cleaned by the suction hole. The region was driven beyond the adjacent region.
[Selection] Figure 6

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. As a result, the air conditioning capacity 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 in order to reduce maintenance work of the air filter (see, for example, Patent Document 1).
JP-A-6-74521

  However, in the above prior art, 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, a cleaning method in which dust attached to the filter is sucked and cleaned by a suction nozzle, and the sucked dust is collected in the dust collector or discharged outside the room is preferable as an automatic air filter cleaning device.

  Further, in order to reduce the suction air volume necessary for sucking dust and suppress power consumption in such a method, a long slit-like suction hole (hereinafter referred to as a nozzle opening) corresponding to the entire length of the air filter is provided in the suction nozzle. The belt is disposed along the nozzle opening while covering the nozzle opening so that the nozzle opening can be blocked, and a hole (hereinafter referred to as a suction hole) is formed in a part of the belt on the nozzle opening. Open only a part of the nozzle opening.

  Each time the suction nozzle is reciprocated along the air filter, it is possible to sweep and clean the entire surface of the air filter by driving the belt and sequentially switching the position of the suction hole. Can be sucked and cleaned.

  In such a method, in general, when the suction hole position is divided according to the size of the suction hole and suction cleaning is performed, it is common to sequentially clean the adjacent areas, and the purpose is to clean the divided areas. In order to do so, some of the dust in adjacent areas will also be sucked.

  In such a case, if the adjacent areas are sequentially cleaned, the area in which some dust has already been sucked is sequentially cleaned, and thus there is a problem that the cleaning cannot be performed efficiently.

  In such a method, the air filter of the air conditioner is generally bent, and the upper part is in the horizontal direction and the lower part is in the vertical direction. In such a case, the amount of dust attached to the air filter is usually higher at the upper part and lower at the lower part.

  For this reason, when dust is sucked into the upper and lower parts of the air filter with the same suction air volume, unevenness may occur in the removal, and in some cases the upper dust will remain, and the lower part will draw more suction air than necessary and consume unnecessary power. There was a problem that would be done.

  The present invention solves the above-mentioned conventional problem, and the dust is removed from the air filter by moving the suction hole beyond the adjacent area of each area to be cleaned by dividing the suction hole. An object of the present invention is to provide a filter device for an air conditioner that enables efficient suction cleaning.

  In addition, the present invention solves the above-described conventional problem, and by providing a suction hole sensor for detecting the position of the suction hole and an instruction portion indicating the position of the suction hole on the belt, and detecting the position of the suction hole, An object of the present invention is to provide a filter device for an air conditioner that can prevent dust from remaining by reciprocating a suction nozzle and increasing the number of times of suction when the position of the suction hole is above the air filter. To do.

  In order to solve the above problems, the present invention provides an air filter that removes dust of air passing through a heat exchanger, and a nozzle opening that is movable along the air filter and that corresponds to the entire length of the air filter. The belt is arranged along the nozzle opening while covering the nozzle opening so that the nozzle opening can be blocked, and a suction hole is provided on the nozzle opening so that the suction nozzle extends along the air filter. It has an automatic filter cleaning function using a suction method that consists of a suction nozzle that can drive the belt each time it reciprocates and can switch the position of the suction hole in sequence, and a suction device connected to the suction nozzle. By having a detecting means for detecting the position of the hole, the suction nozzle can be driven back and forth depending on the position of the suction hole, and the air In a filter device of an air conditioner that divides and cleans a filter according to the size of the suction hole, the drive amount of the belt is driven beyond the adjacent areas of the areas that the suction hole divides and cleans. It is made to let you.

  With such a configuration, it is possible to efficiently suck and clean the dust on the air filter, and it is possible to prevent dust from remaining by reciprocating the suction nozzle only in the upper part where the amount of dust is attached and increasing the number of suctions. Become.

  In addition, by having a variable means to vary the suction amount, it is possible to adjust the suction amount according to the position of the suction hole, increasing the suction amount only in the upper part where the amount of dust adhering is large, and further preventing dust from remaining Is possible.

  In addition, by changing the suction nozzle drive speed according to the position of the suction hole, the left and right drive speed of the suction nozzle is reduced only in the upper part where the amount of dust adheres, and the suction time is lengthened, thereby further preventing dust from remaining. It is possible.

  In addition, by having a detecting means for detecting the amount of dust adhering to the filter, the suction amount can be locally adjusted according to the amount of dust adhering.

  With such a configuration, the suction amount is locally increased only in the portion where the amount of dust adhering to the filter is large, the dust suction amount is increased, and the portion where the amount of dust adhering to the filter is low is reduced, It is possible to further reduce power consumption.

  In addition, by locally changing the suction nozzle drive speed in accordance with the amount of dust attached, the suction nozzle drive speed is reduced only in the part where the amount of dust attached to the filter is large, thereby preventing dust from remaining. At the same time, the portion where the amount of dust adhering to the filter is small can increase the nozzle drive speed and shorten the time required for filter cleaning.

  According to the present invention, an air conditioner having a function of automatically cleaning dust adhering to an air filter by suction using a suction nozzle that can be provided with a drivable belt having a suction hole and can change a place to suck the dust. Each of the belts is provided with an indication portion indicating the position of the suction hole and a suction hole sensor for detecting the position of the indication portion, the position of the suction hole is detected, and the drive amount of the belt is divided and cleaned by each area By driving beyond the adjacent area, it is possible to efficiently suck and clean the dust of the air filter, and when the suction hole is above the air filter, the suction nozzle is driven back and forth. By increasing the number of times of suction, it is possible to prevent dust from remaining.

  Furthermore, in the present invention, it is possible to adjust the suction amount according to the position of the suction hole by providing the variable means for changing the suction amount, and the suction amount is increased only in the upper part where the dust adhesion amount is large, and the dust remains. It becomes possible to prevent more.

  Furthermore, in the present invention, by changing the suction nozzle drive speed according to the position of the suction hole, the left and right drive speed of the suction nozzle is reduced only in the upper part where the amount of dust is attached, and the suction time is lengthened, so that the dust remains more. It becomes possible to prevent.

  Further, in the present invention, by providing a detecting means for detecting the amount of dust attached to the filter and detecting the amount of dust attached to the filter, the suction amount is locally adjusted according to the amount of dust attached, and the filter The suction amount is increased locally only at the part where the amount of dust adhering to the surface is increased, and the amount of dust adhering is increased. At the part where the amount of dust adhering to the filter is reduced, the amount of suction is reduced, further reducing power consumption. It becomes possible to do.

  Furthermore, in the present invention, the suction nozzle drive speed is locally changed in accordance with the amount of dust adhering, so that the suction nozzle drive speed is reduced only in the portion where the amount of dust adhering to the filter is large, and the dust remains. In addition to the prevention, the portion where the amount of dust attached to the filter is small can increase the nozzle drive speed and shorten the time required for filter cleaning.

1st invention is a filter apparatus comprised by the air filter which removes the dust of the air which passes a heat exchanger, the suction nozzle which can be driven along the said air filter, and the suction device connected to the said suction nozzle In the filter device for an air conditioner, the suction nozzle includes an opening provided in the nozzle and a belt that covers the opening and can be driven along the opening. A filter device of an air conditioner that is provided with a suction hole to change the place to be sucked by driving the belt, and has a detecting means for detecting the position of the suction hole, and the position of the suction hole It is a filter device of an air conditioner characterized in that the suction nozzle can be driven back and forth by the air filter according to the size of the suction hole. An air conditioner filter device for splitting and cleaning the air conditioner, wherein the drive amount of the belt is driven beyond the adjacent areas of the areas where the suction holes divide and clean. This is a filter device.
A second aspect of the present invention is the air conditioner filter device according to claim 1, further comprising a variable unit that varies the amount of suction, and the amount of suction is adjusted by the position of the suction hole.

  A third aspect of the present invention is the air conditioner filter device according to claim 1, wherein the suction nozzle driving speed is changed according to the position of the suction hole.

  4. The air conditioner according to claim 1, wherein the air conditioner has a detecting means for detecting the amount of dust adhering to the filter, and the suction amount is locally adjusted according to the amount of dust adhering. This is a filter device.

  The fifth aspect of the present invention has a detecting means for detecting the amount of dust attached to the filter, and the driving speed of the suction nozzle is locally changed in accordance with the amount of dust attached. It is a filter device of an air conditioner.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
Embodiment 1 of the present invention will be described with reference to FIGS.

  First, FIG. 1 is a diagram showing an example of the configuration of a filter device of an air conditioner according to Embodiment 1 of the present invention. In this figure, an air filter for removing dust from air passing through a heat exchanger is composed of a filter frame 1 and a filter net 2, and a suction nozzle 3 movable along the surface of the air filter is provided (suction). Since the detailed structure of the nozzle 3 will be described later, the detailed description is omitted here).

  The air filter has a bent shape, and the upper part is configured in the horizontal direction and the lower part in the vertical direction. The suction nozzle 3 can be smoothly moved to the left and right with an extremely narrow gap from the air filter by the guide rails 4 installed at the upper and lower ends of the filter frame.

  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 device 6 is a device using a fan motor capable of adjusting the rotation speed so that the suction amount can be varied.

  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.

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

  FIG. 2 is a view showing the structure of the suction nozzle 3 in the configuration of the filter device, and is a view of the suction nozzle 3 as viewed obliquely from above.

  The suction nozzle 3 mainly includes a nozzle 8 serving as a flow path for the sucked air and a belt 9 having a width of 20 MM provided so as to surround the nozzle 8.

  The surface of the nozzle 8 on the air filter side is provided with a slit-like nozzle opening 10 having a length of 320 MM (corresponding to the vertical length of the filter) and a width of 3 MM.

  On the other hand, the belt 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.

  The belt 9 is provided with a suction hole 11 having a length of 80 MM (1/4 of the vertical length of the filter) and a width of 2 MM. The belt 9 is attached so that the suction hole 11 is positioned directly above the nozzle opening 10. It is done.

  An instruction unit 15 is provided on the side surface of the suction hole 11 in order to detect the position. Inside the suction nozzle 3, a suction hole sensor 16 is provided so as to come into contact with the instruction unit 15, so that the position of the instruction unit 15 can always be detected and the position of the suction hole 11 can be detected. Yes.

  At the both ends of the belt 9, drive holes 12 are provided at regular intervals like a movie film, and a gear 14 attached to a stepping motor 13 fixed on the nozzle 8 is engaged with the drive holes 12. The belt 9 can be freely driven in any of the vertical directions.

  FIG. 3 shows the nozzle 8 and the belt 9 in FIG. 2 separately. FIG. 4 is a view showing a cross section of the suction nozzle 3 (cross sectional view taken along the line XX in FIG. 2).

  As another configuration for driving the belt in the suction nozzle 3 having such a configuration, a method of driving the belt 9 with a rubber roller or the like without using the gear 14 is also conceivable.

  In the embodiment of the present invention, the belt 9 is formed in a loop shape in order to reduce the size of the apparatus. However, there is a method of winding the belt by providing a reel or the like.

  In the present embodiment, since the entire surface of the air filter is suction-cleaned by the suction nozzle 3 having the above-described configuration, the specific operation will be described with reference to FIGS. 1, 5, 6, and 7. FIG. 5 is a diagram showing the positions of the suction holes corresponding to the cleaning ranges A, B, C, and D of the air filter shown in FIG.

  As shown in FIG. 1, the actual suction nozzle has a structure bent along the air filter. However, in FIG. 5, the suction nozzle is shown in a straight state for easy viewing.

  First, when the area A of the air filter in FIG. 1 is suction-cleaned, the belt is driven to fix the suction hole at the position A in FIG.

  By driving the suction nozzle from the right end to the left end of the air filter while sucking in this state, the horizontal range of the air filter A in FIG. 1 can be sucked and cleaned.

  Next, in order to shift to suction cleaning in the range B of the air filter in FIG. 1, the belt is driven to fix the suction hole at the position B in FIG. Similarly, by driving the suction nozzle from the left end to the right end of the air filter while sucking in this state, the horizontal range B of the air filter in FIG. 1 can be sucked and cleaned. Similarly, the range of C and D of the air filter in FIG. Since the range of C and D of the air filter in FIG. 1 is configured in the horizontal direction, the amount of dust attached is larger than the range of A and B, and a larger amount of suction is required.

6 and 7 are diagrams in which the order of this suction cleaning is indicated by arrows, but the cleaning ranges A, B, C, and D are divided into several parts to be cleaned by one horizontal sweep as shown in the figure. Although the cleaning is performed separately, when a certain area is cleaned by a horizontal sweep, in order to clean the area as intended, a part of the adjacent area is cleaned.

  Therefore, the suction nozzle performs the operation as shown in FIG. 6 in the range A and B of the air filter in FIG. 1, and the suction nozzle performs the operation as shown in FIG. 7 in the range C and D of the air filter in FIG.

  In this way, the entire surface of the air filter can be efficiently cleaned by performing the horizontal sweep suction operation by skipping adjacent areas where some dust has already been sucked.

  According to the present embodiment, it becomes possible to detect the position of the suction hole. When the position of the suction hole is above the air filter, the suction nozzle is reciprocated to increase the number of times of suction, thereby preventing dust from remaining. be able to.

  In addition, it is possible to detect the position of the suction hole, and when the position of the suction hole is at the upper part of the air filter, the output of the suction device is increased and the suction amount is increased to prevent the dust from remaining. You can also. In this case, the operation of the suction nozzle is performed on the front surface of the air filter by the operation of FIG.

  In addition, the ability to detect the position of the suction hole prevents dust from remaining by reducing the left and right drive speed of the suction nozzle and increasing the suction time when the suction hole is located above the air filter. can do.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIG. The nozzle 8 used in Embodiment 1 of the present invention is provided with a dust sensor 17 that detects the amount of dust attached to the surface of the air filter.

  Thereby, when the nozzle 8 is driven, the amount of dust attached to the air filter can be locally detected.

  This example makes it possible to locally detect the amount of dust attached to the air filter, and increase the suction amount by increasing the output of the suction device locally in areas where the amount of dust attached to the air filter is large. By doing so, it is possible to prevent dust from remaining.

  In addition, by detecting the amount of dust attached to the air filter locally, the part where the amount of dust attached to the air filter is large can be reduced by locally reducing the left and right drive speed of the suction nozzle and increasing the suction time. Dust remains can be prevented.

  As described above, the filter device of the air conditioner according to the present invention is based on the suction nozzle that can change the place where the dust adhering to the air filter is sucked by providing a drivable belt having a suction hole. In an air conditioner having a function of automatically cleaning by suction, a suction hole sensor for detecting a position of the suction hole and a position of the pointing part is provided on the belt, and the suction hole is detected by detecting the position of the suction hole. If the position of the air filter is above the air filter, it is possible to prevent the dust from remaining by reciprocating the suction nozzle and increasing the number of suctions. The air filter is divided and cleaned according to the size of the suction hole. In this case, the drive amount of the belt is driven beyond the adjacent areas of the areas where the suction holes divide and clean, thereby efficiently sucking dust from the air filter. Since it is possible to clean to be applied to various air conditioner applications.

The perspective view which shows the structure of the filter apparatus of the air conditioner in Embodiment 1 of this invention. The perspective view which shows the suction nozzle of the filter apparatus of the air conditioner in Embodiment 1 of this invention The disassembled perspective view which shows the suction nozzle of the filter apparatus of the air conditioner in Embodiment 1 of this invention. Sectional drawing which shows the suction nozzle of the filter apparatus of the air conditioner in Embodiment 1 of this invention The schematic diagram which shows the position of the suction hole according to the cleaning range of the air filter of the filter apparatus of the air conditioner in Embodiment 1 of this invention The schematic diagram which shows the suction cleaning order of the filter apparatus of the air conditioner in Embodiment 1 of this invention. The schematic diagram which shows the suction cleaning order of the filter apparatus of the air conditioner in Embodiment 1 of this invention. Sectional drawing which shows the suction nozzle of the filter apparatus of the air conditioner in Embodiment 2 of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Filter frame 2 Filter net | network 3 Suction nozzle 4 Guide rail 5 Suction duct 6 Suction device 7 Exhaust duct 8 Nozzle 9 Belt 10 Nozzle opening 11 Suction hole 12 Drive hole 13 Stepping motor 14 Gear 15 Instruction part 16 Suction hole sensor 17 Dust sensor

Claims (5)

An air conditioner comprising a filter device comprising an air filter for removing dust from the air passing through the heat exchanger, a suction nozzle that can be driven along the air filter, and a suction device connected to the suction nozzle In the filter device, the suction nozzle includes an opening provided in the nozzle and a belt that covers the opening and can be driven along the opening, and the belt is provided with a suction hole serving as a suction part. A filter device of an air conditioner that varies a suction location by driving the belt, the detection device detecting a position of the suction hole, and driving the suction nozzle according to the position of the suction hole An air conditioner filter device capable of reciprocating the air filter, wherein the air filter is divided and cleaned according to the size of the suction hole. A filter device, the belt of each region driving amount the suction hole is cleaned by dividing, be driven beyond the neighboring region filter device of an air conditioner characterized by. 2. The filter device for an air conditioner according to claim 1, further comprising variable means for varying the suction amount, wherein the suction amount is adjusted by the position of the suction hole. The filter device for an air conditioner according to claim 1, wherein the suction nozzle driving speed is changed according to the position of the suction hole. 2. The filter device for an air conditioner according to claim 1, further comprising a detecting means for detecting the amount of dust attached to the filter, wherein the suction amount is locally adjusted according to the amount of dust attached. The filter of an air conditioner according to claim 1, further comprising a detecting means for detecting the amount of dust adhering to the filter, wherein the suction nozzle drive speed is locally changed in accordance with the amount of dust adhering. apparatus.

Images