JP5240960B2 - Air conditioner cleaning device and air conditioner - Google Patents

Description

  The present invention relates to an air conditioner cleaning device that cleans an air filter attached to an air conditioner, and an air conditioner using the same.

  As a conventional cleaning device for an air conditioner of this type, a belt-like air filter that is stretched between a drive shaft and a driven shaft and collects dust contained in air flowing into the air conditioner, and the drive shaft includes It is removed by a first driving means for rotational driving, a rotary cleaning body having a brush for removing dust adhering to the air filter on the outer periphery, a second driving means for rotationally driving the rotational cleaning body, and the rotary cleaning body. It is equipped with a dust discharge fan that sucks out dust and discharges it to the outside. When cleaning the air filter, it is rotated by the second drive means while rotating the drive shaft by the first drive means and moving the air filter. The dust that adheres to the air filter is removed with the brush of the rotating cleaning body, and at the same time, the removed dust is sucked with a dust discharge fan and discharged to the outside (for example, patent documents) Reference 1).

  However, in the configuration of the conventional cleaning device for an air conditioner described in Patent Document 1, the belt-like air filter is moved by the first driving means, and the dust removed by the dust suction fan is discharged. Therefore, there is a problem that the structure is complicated and the air conditioner main body is enlarged. In addition, when the dust is discharged, the dust suction fan rotates at a high speed, resulting in a high noise level. Furthermore, since the dust is directly discharged to the outside, the outdoor air is contaminated with dust and is unsanitary. But it was.

  In order to solve such a problem, a disk-shaped air filter disposed in an air passage that guides outside air sucked from an air inlet to an air outlet, a dust removal motor that rotationally drives the air filter, An automatic cleaning device for removing dust adhering to the air filter is provided. The automatic cleaning device is in contact with the front surface of the air filter and is rotated by the rotation of the air filter, and is removed by the rotating brush. There is a cleaning device for an air conditioner provided with a dust collection box for receiving dust (for example, see Patent Document 2).

  Since the conventional air conditioner cleaning device described in Patent Document 2 has a disk-like air filter, the air conditioner body can be made smaller than the conventional one, and the removed dust can be collected in a dust collection box. Since it is stored, it is also hygienic.

Further, on the upstream side of the air filter built in the air conditioner, a brush part for removing dust adhering to the surface of the air filter, a dust box covering the brush part, and the brush part and the dust box are arranged along the guide rail. A reciprocating drive unit, and the drive unit is composed of a split nut that drives a dust box, a drive screw that is screwed to the split nut, and a drive motor that rotationally drives the drive screw. When cleaning the filter, the drive screw is rotated clockwise and counterclockwise by the drive motor to move the brush part back and forth together with the dust box. During this time, dust attached to the surface of the air filter by the brush part is removed. There is also a cleaning device for an air conditioner that is removed (see, for example, Patent Document 3).
JP-A-6-74521 JP 2007-130628 A Japanese Patent Laid-Open No. 2007-040689

  However, in the configuration of the conventional cleaning device for an air conditioner described in Patent Document 2, since the air filter is configured to rotate, reinforcement by ribs or the like is provided in order to give the air filter itself strength. As a result, the air filter becomes thicker, leading to an increase in the size of the air conditioner. Further, in order to rotate the air filter, the surface accuracy of the air filter is required, but it has been difficult to rotate a large air filter with high accuracy.

  In order to rotate the air filter smoothly, it is necessary to provide a certain gap between the outer periphery of the air filter and the air conditioner body. However, there is a problem that the air conditioner directly flows into the air conditioner body, dust is accumulated on the heat exchanger, and air conditioning performance is deteriorated.

  Further, in the configuration of the conventional cleaning device for an air conditioner described in Patent Document 3, a guide rail and a driving screw must be provided in order to move the brush portion and the dust box along the surface of the air filter. In addition, the structure is complicated, and it is necessary to process and assemble the dust box with high precision so that the dust box can be smoothly reciprocated.

  The present invention solves the above-described conventional problems, and provides an excellent air conditioner cleaning device and air conditioner that are small in size, easy to assemble, and do not deteriorate the air conditioning performance of the air conditioner. It is intended to do.

In order to solve the above-mentioned conventional problems, a main body case that rotates along an upstream surface of an air filter built in an air conditioner and that has an opening facing the air filter, and a drive that rotates the main body case A shaft and a cleaning body that faces the opening and removes dust adhering to the surface of the air filter while rotating about the drive shaft, and the drive shaft is detachably fitted to the main body case. And with the rotation center of the drive shaft as a boundary, the opening facing the cleaning body on one side of the main body case is provided, and the other side is provided with a dust storage part for storing the dust removed by the cleaning body, characterized in further comprising a dust transfer means for transferring the dust collected in the removed by the cleaning member in the main body case to the dust storage portion in the main body casing, a fixed d While rotating along the surface of the filter, so scraping dust adhering to the surface of the air filter, it allows cleaning of the stable air filter, dust collection efficiency is improved as a result. In addition, since it is not necessary to rotate or move the air filter, it is not necessary to give the air filter more strength than necessary or to finish it more accurately than necessary. In addition, the size of the air conditioner can be reduced.

  In addition, since it is not necessary to rotate the air filter, the peripheral edge of the air filter can be securely fixed to the air conditioner body as usual, so that the outside air containing dust directly from the peripheral part of the air filter is directly connected to the air conditioner. Without entering the body, the predetermined air conditioning performance of the air conditioner can be maintained over a long period of time. Further, since the main body case is simply rotated along the surface of the air filter, a conventional guide rail is not required, it is inexpensive, easy to assemble, and the air conditioner can be downsized.

The air conditioner of the present invention is a heat exchanger, an air filter that is arranged upstream of the heat exchanger and captures dust contained in the inflowing air, and any one of claims 1 to 5. It is possible to provide an air conditioner that can exhibit stable air conditioning performance over a long period of time at a low cost.

  The cleaning device for an air conditioner and the air conditioner of the present invention are small in size, easy to assemble, and do not deteriorate the air conditioning performance of the air conditioner.

According to a first aspect of the present invention, there is provided a main body case that rotates along an upstream surface of an air filter built in an air conditioner and has an opening facing the air filter, a drive shaft that rotates the main body case, with facing the opening, and a cleaning element for removing dust adhering to the surface of the air filter while rotating around the said drive shaft, said drive shaft is fitted detachably against said main body case , With the rotation center of the drive shaft as a boundary, the opening facing the cleaning body on one side of the main body case is provided, and on the other side, a dust storage part for storing the dust removed by the cleaning body is provided. the dust transfer means for transferring the removed recovered in the main body case dust into the dust containing portion characterized in that provided in the main body case, a fixed surface of the air filter While rotating along, since scraping dust adhering to the surface of the air filter, it allows cleaning of the stable air filter, dust collection efficiency is improved as a result. In addition, since it is not necessary to rotate or move the air filter, it is not necessary to give the air filter more strength than necessary or to finish it more accurately than necessary. In addition, the size of the air conditioner can be reduced.

In addition, since it is not necessary to rotate the air filter, the peripheral edge of the air filter can be securely fixed to the air conditioner body as usual, so that the outside air containing dust directly from the peripheral part of the air filter is directly connected to the air conditioner. Without entering the body, the predetermined air conditioning performance of the air conditioner can be maintained over a long period of time. Further, since the main body case is simply rotated along the surface of the air filter, a conventional guide rail is not required, it is inexpensive, easy to assemble, and the air conditioner can be downsized. In addition, the weight balance on the left and right is improved with the rotation center of the drive shaft as the boundary, large stress is not applied to the part that rotates the main body case, abnormal vibration does not occur when the main body case rotates, and it has a long life, A highly reliable cleaning apparatus for an air conditioner can be provided. In addition, if the dust is transferred to the dust storage part and compressed and stored as appropriate by the dust transfer means, the frequency of dust disposal can be reduced, especially for air conditioners installed at high places such as the ceiling. When incorporated, maintenance becomes easy.

  In particular, the second invention removes dust adhering to the surface of the air filter while rotating the cleaning body of the first invention within the main body case, and the performance of removing dust adhering to the surface of the air filter is greatly improved. Improve.

  In the third invention, in particular, in the second invention, the cleaning body is rotated in the main body case using the rotation of the main body case as a driving source, and a dedicated driving means for rotating the cleaning body is unnecessary. An air conditioner cleaning device having excellent dust removal performance can be provided at low cost. In particular, when a motor or the like is used as the driving means, the electrical wiring therefor becomes unnecessary, so that assembly is facilitated.

In particular, the fourth aspect of the present invention, in any one of the first to third aspects, drives the dust transfer means using the rotation of the main body case as a drive source, and is a dedicated drive means for driving the dust transfer means. Therefore, the air conditioner cleaning device can be provided at a low cost. In particular, when a motor or the like is used as the driving means, the electrical wiring therefor becomes unnecessary, so that assembly is facilitated.

According to a fifth aspect of the invention, in particular, in any of the first to fourth aspects of the invention, the dust transfer means is not driven while the dust on the surface of the air filter is removed by the cleaning body. While the transfer means is moving toward the dust storage section, the dust does not fall and accumulate on the cleaning body side of the dust transfer means in the main body case, and the dust cannot be discarded.

A sixth invention is a heat exchanger, an air filter that is arranged upstream of the heat exchanger and captures dust contained in the inflowing air, and the air conditioner of any one of the first to fifth inventions An air conditioner that can provide stable air conditioning performance over a long period of time can be provided at a low cost.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this Example.

Example 1
An air conditioner cleaning apparatus according to a first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is an overall perspective view of an air conditioner equipped with a cleaning device for an air conditioner according to the present embodiment, FIG. 2 is a sectional view of the air conditioner, and FIG. 3 is a half of an air filter of the air conditioner. It is a bottom view.

  1 to 3, an air conditioner 1 includes an indoor unit 2 installed on a ceiling and an outdoor unit 4 installed outside and connected to the indoor unit 2 via a refrigerant pipe 3 that circulates refrigerant. It is roughly structured.

  The outdoor unit 4 includes a compressor 5 that compresses the refrigerant, an outdoor heat exchanger 6 that performs heat exchange between the refrigerant and outdoor air, and an outdoor blower 7.

  The indoor unit 2 has a front panel 8 at the bottom, a housing 9 embedded in the ceiling, an air inlet 10 formed in the center of the front panel 8, and an air inlet 10 that is detachable. And a front grill 12 having a suction port 11 for sucking indoor air, an indoor blower 13 for sucking and sending indoor air, an electric motor 14 for rotationally driving the indoor blower 13, and a downstream side of the indoor blower 13 The indoor heat exchanger 15 for exchanging heat between the indoor air and the refrigerant, the bell mouth 16 for adjusting the flow of the inflowing indoor air, and the inlet portion of the bell mouth 16 to the inflowing air A substantially circular air filter 17 that captures dust contained therein, and an air conditioner cleaning device 20 that is disposed on the upstream side of the air filter 17 and removes dust adhering to the air filter 17 (hereinafter, “ Cleaning device 20), a cleaning device 20, which is positioned outside drive means 22 for rotationally driving via a drive shaft 21 having a polygonal outer shape, and air suction port 10 of front panel 8, and performs indoor heat exchange. And an air outlet 23 for blowing out the air heat-exchanged by the vessel 15. The drive shaft 21 protrudes downward through an opening 17d provided in the center of the substantially circular air filter 17.

  The air filter 17 includes a filter material 17a and a frame body 17b on which the filter material 17a is stretched, and an annular gear A17c is formed on the lower surface of the frame body 17b located on the outer periphery.

  Next, the detail of the cleaning apparatus 20 in a present Example is demonstrated using FIGS. 4 is a perspective view of the air conditioner cleaning device, FIG. 5 is a sectional view of the drive shaft and the fitting hole of the air conditioner cleaning device, and FIG. 6 is a perspective view of the air conditioner cleaning device. 7 is a cross-sectional view taken along the line AA in FIG. 6, and FIG. 8 is a cross-sectional view taken along the line BB in FIG. 6 (including a cross section of the air filter).

  4 to 8, the cleaning device 20 according to the present embodiment is located at the approximate center of the upper surface, the inner shape is substantially the same as the outer shape of the drive shaft 21, and the fitting is detachably fitted to the drive shaft 21. A hole 25 is provided, and the driving shaft 21 is fitted into the fitting hole 25 to operate the driving means 22, thereby rotating along the upstream surface of the air filter 17, for example, like a clock hand. In this embodiment, as shown in FIG. 4, an opening 27 is formed on the left side of the upper surface of the main body case 26 at one of the rotation center of the main body case 26, that is, the center of the fitting hole 25. Are provided in the longitudinal direction.

  A pair of arc-shaped pins 21a are provided at the lower portion of the drive shaft 21 so as to be slidable in a direction perpendicular to the axial direction of the drive shaft 21, and each of the pair of pins 21a is urged by an urging means 21b. It is urged outward. 21c is a seat formed integrally with the pin 21a, and is for preventing the pin 21a from coming off the drive shaft 21. On the other hand, the fitting hole 25 is provided with a hole 25a into which each tip of the pair of pins 21a is fitted. In the state where the drive shaft 21 is removed from the fitting hole 25 (FIG. 5A), only the arc-shaped portions at the tips of the pair of pins 21a are set to protrude from the outer surface of the drive shaft 21. ing.

  Since the lower part of the drive shaft 21 and the fitting hole 25 are configured as described above, if the body case 26 is grasped and the fitting hole 25 is attached to the drive shaft 21 with a little strong force, the pin 21 a resists the urging force of the urging means 21 and sunk inward of the drive shaft 21, and the lower end of the drive shaft 21 is inserted into the fitting hole 25.

  When the center of the pin 21a coincides with the center of the hole 25a, the pin 21a protrudes outward by the urging force of the urging means 21b and fits into the hole 25a, so that the main body case 26 is securely attached to the drive shaft 21. it can. Further, when removing the main body case 26 from the drive shaft 21, if the main body case 26 is pulled downward with a slightly strong force, the pin 21a is retracted inward for a moment, so that it can be easily removed.

  A cleaning body 30 is attached in the longitudinal direction inside the main body case 26 so as to face the opening 27 and contact the upstream surface of the air filter 17 to scrape dust adhering to the air filter 17. Reference numeral 26 a denotes a support wall that supports both ends of the cleaning body 30 and is integrally suspended from the top surface of the main body case 26.

  The cleaning body 30 is in the form of a brush, and is made of a cleaning member 30a that removes dust adhering to the upstream surface of the air filter 17 and a metallic material, and a base material that sandwiches the base portion of the cleaning member 30a. 30b. FIG. 8 shows the contact relationship between the cleaning member 30a of the cleaning body 30 and the air filter 17 when the main body case 26 rotates in the arrow A direction.

Further, the cleaning body 30 is provided on the opposite side of the body case 26 from the center of the fitting hole 25 where the opening 27 is provided.
A dust storage portion 28 for storing the dust removed from the filter 17 is formed, and an openable / closable lid 26 b is provided at the end of the dust storage portion 28.

  Similarly, in the longitudinal direction in the main body case 26, a first rotating shaft 32 having a gear B 31 meshing with a gear A 17 c provided on the air filter 17 fixed to one end is rotatably accommodated, and the outer periphery of the first rotating shaft 32 is accommodated. A worm gear 33 is provided slidably in the longitudinal direction. A rack gear 34 is also arranged in the longitudinal direction in the main body case 26 and meshes with the worm gear 33.

  As shown in FIGS. 6 and 7, a convex rib 32a is provided in the longitudinal direction of the outer periphery excluding the portion A on the gear B31 side of the first rotating shaft 32, while the worm gear 33 side is fitted with the convex rib 32a. The worm gear 33 cannot be rotated on the first rotation shaft 32 in a portion other than the portion A of the first rotation shaft 32. In this embodiment, the portion A extends from the surface of the gear B31 on the worm gear 33 side to a position slightly longer than the length of the worm gear 33.

  Reference numeral 37 denotes dust transfer means for transferring the dust removed by the cleaning body 30 and falling to the dust storage portion 28. A part of the periphery of the dust transfer means 37 is circularly connected to the worm gear 33 as shown in FIGS. It fits into a groove 33b provided in an annular shape.

  With the above configuration, when the worm gear 33 is located at a portion other than the portion A of the first rotating shaft 32, when the gear A31 rotates, the worm gear 33 rotates together with the rotation of the first rotating shaft 32, and the worm gear 33 Since 33 is meshed with the rack gear 34, it moves along the longitudinal direction of the main body case 26. At this time, the dust transfer means 37 also moves together with the worm gear 33.

  The operation | movement and effect | action of the cleaning apparatus 20 in the present Example comprised as mentioned above and the air conditioner 1 which mounts it are demonstrated below.

First, the operation of the air conditioner will be described.
When the user starts the operation of the air conditioner 1, for example, the cooling operation, the operation of the indoor blower 13 starts, and the indoor air flows from the suction port 11 provided in the front grill 12, Then, the air reaches the air filter 17 where dust contained in the air is trapped and cleaned, and the indoor heat exchanger 15 exchanges heat with the refrigerant sent from the outdoor unit 4. It is cooled and cold air is blown out into the room through the air outlet 23.

  If the air conditioner 1 is used for a long period of time, dust accumulates on the air filter 17, the air flow deteriorates, and the air conditioning performance gradually deteriorates. Therefore, the air filter 17 must be appropriately cleaned. However, cleaning of the air filter 17 by the cleaning device 20 in the present embodiment will be described below.

  In the present embodiment, as one of the initial settings, the worm gear 33 on the first rotating shaft 32 is preliminarily brought into the portion A of the first rotating shaft 32.

  When a first operation switch (not shown) is operated, the driving means 22 is operated, and the main body case 26 fitted to the driving shaft 21 is rotated in one direction, for example, clockwise.

  When the main body case 26 rotates, the dust adhered to the surface of the air filter 17 is removed by the cleaning body 30 protruding from the opening 27 of the main body case 26 and falls below the cleaning body 30. Since the gear B31 meshes with the gear A17c of the air filter 17, when the main body case 26 rotates, the first rotating shaft 32 rotates together with the gear B31. However, the worm gear 33 is located at the portion A of the first rotating shaft 32. Therefore, the worm gear 33 does not move only by idling there, that is, the dust transfer means 37 remains in the A part.

  Then, after rotating the main body case 26 a few times to clean the air filter 17, when the second operation switch (not shown) is operated, the rotation of the main body case 26 is temporarily stopped. Then, the worm gear 33 moves on the first rotating shaft 32 to a position outside the portion A, that is, to a position where the convex rib 32a of the first rotating shaft 32 and the concave portion 33a of the worm gear 33 are fitted by a moving mechanism (not shown). . Then, the driving means 22 is driven again to rotate the main body case 26, for example, clockwise. Then, the gear B31 is rotated, and at the same time, the worm gear 33 is rotated, and the gear B31 is moved in the direction opposite to the portion A, in the right direction in the example of FIG. At this time, the dust transfer means 37, part of which is fitted in the groove 33 b of the worm gear 33, moves together with the worm gear 33 and transfers the dust that has fallen below the cleaning body 30 to the dust container 28.

  In this embodiment, the number of teeth of the gear B31 and the rack gear 34 is set so that the dust transfer means 37 reaches the right end in the main body case 26 when the main body case 26 is rotated once.

  Then, after the main body case 26 is rotated once and the dust transfer means 37 reaches the right end in the main body case 26, the drive means 22 is reversed to move the worm gear 33 together with the dust transfer means 37 to the position at the start of operation, That is, it returns to the position next to the A part. Then, the moving mechanism is operated to return the worm gear 33 to the position of the A part of the first rotating shaft 32.

  When the cleaning operation of the air filter 17 and the dust transfer by the dust transfer means 37 are performed several times, the dust gradually accumulates in the dust storage portion 28. Then, by looking at the rolling contact, the main body case 26 is removed from the drive shaft 21, and the lid 26b is opened on the trash box (not shown), so that the dust accumulated in the dust storage unit 28 is discarded without dirtying the hands. can do.

  As described above, according to the cleaning device 20 in the present embodiment, the cleaning device 20 scrapes off dust adhering to the surface of the air filter 17 while rotating along the surface of the fixed air filter 17. The air filter 17 can be stably cleaned, and as a result, the dust collection efficiency is improved.

  In addition, since it is not necessary to rotate or move the air filter 17, it is not necessary to give the air filter 17 strength more than necessary or to finish it more precisely than necessary, so it can be configured thinly and inexpensively. As a result, the air conditioner 1 can be downsized.

  Further, since it is not necessary to rotate the air filter 17, the peripheral edge of the air filter 17 can be securely and airtightly fixed to the air conditioner 1 as usual, thereby including dust from the peripheral part of the air filter 17. The outside air does not directly enter the indoor unit 2, and a predetermined air conditioning performance can be maintained for a long time. Further, since only the main body case 26 is rotated along the surface of the air filter 17, a conventional guide rail is not required, it is inexpensive, easy to assemble, and the air conditioner can be downsized.

  Further, since the opening 27 where the cleaning body 20 faces on one side and the dust storage portion 28 for storing the dust removed by the cleaning body 30 on the other side are provided with the rotation center of the main body case 26 as a boundary, The weight balance on the left and right is improved at the center of rotation, and no great stress is applied to the drive shaft 21 that drives the main body case 26 to rotate, and abnormal vibration does not occur when the main body case 26 rotates. A highly efficient cleaning device 20 can be provided.

  Further, since the dust transfer means 37 for transferring the dust that has been removed by the cleaning body 30 and dropped and collected in the main body case 26 to the dust storage section 28 is provided, the dust transfer means 37 appropriately removes the dust. If it is transported, compressed and stored in the storage unit 28, the frequency of dust disposal can be reduced. In particular, when it is incorporated in an air conditioner 1 mounted at a high place such as a ceiling, maintenance becomes easy.

  Further, since the gear A17c and the gear B31 of the air filter 17 are engaged with each other, the dust transfer means 37 is driven using the rotation of the main body case 26 as a drive source. A drive means becomes unnecessary and the cleaning apparatus 20 can be provided at low cost. In particular, when a motor or the like is used as the driving means, the electrical wiring therefor becomes unnecessary, so that assembly is facilitated.

  In this embodiment, the gear A17c is formed on the outer periphery of the air filter 17. However, the present invention is not particularly limited to this, and the same effect can be obtained even if it is formed in an annular shape outside the air filter 17. Needless to say. In this case, there is an advantage that the structure of the air filter 17 is simplified and the weight is reduced and the air filter 17 is easy to handle because no gear is formed in the air filter 17.

  Further, while the dust on the surface of the air filter 17 is removed by the cleaning body 30, the dust transfer means 37 is not driven, so that the dust transfer means 37 is moved to the dust storage unit 28 side. The dust does not fall and accumulate on the cleaning body 30 side of the dust transfer means 37 in the main body case 26, and the dust cannot be discarded.

(Example 2)
9 is a perspective view of an air conditioner cleaning device according to a second embodiment of the present invention, FIG. 10 is a perspective view of the air conditioner cleaning device, and FIG. 11 is a cross-sectional view taken along a line CC in FIG. 12 (including the cross section of the air filter), FIG. 12 is a DD cross sectional view (including the cross section of the air filter) of FIG. In addition, about the same part as the cleaning apparatus 20 in the said 1st Example, the same code | symbol is provided and the detailed description is abbreviate | omitted.

  In the first embodiment, the cleaning body is fixed to the main body case 26. However, in this embodiment, a rotatable cleaning body is used.

  9-12, in the longitudinal direction in the main body case 26 of the cleaning device 40 for the air conditioner in the present embodiment, it faces the opening 27 and contacts the upstream surface of the air filter 17 and adheres to the air filter 17. A cleaning body 41 that scrapes off dust is rotatably arranged.

  The cleaning body 41 includes a second rotating shaft 41a that is rotatably supported by a pair of support walls 26a provided in the main body case 26, and a cleaning member 41b that is provided radially on the outer periphery of the second rotating shaft 41a. A gear C43 that meshes with the gear B31 is attached to one end of the second rotating shaft 41a via a clutch mechanism (not shown). The clutch mechanism is for transmitting or cutting the rotational power applied to the gear C43 to the second rotary shaft 41a.

As shown in FIG. 11, the dust transfer means 45 for transferring the dust to the dust container 28 includes a substantially U-shaped notch 45a, and the inner diameter of the notch 45a is as shown in FIG. It is set so as to bite in a little over the substantially half circumference of 41 cleaning members 41b. Thereby, the dust adhering to the cleaning member 41b can be scraped off.
Other configurations are the same as those of the cleaning device 20 in the first embodiment.

The operation and action of the cleaning device 40 in the present embodiment configured as described above are as follows.
As in the first embodiment, the worm gear 33 on the first rotating shaft 32 is brought in advance in the portion A of the first rotating shaft 32.

  When a first operation switch (not shown) is operated, the driving unit 22 operates, and the main body case 26 fitted to the driving shaft 21 and the driving shaft 21 rotate in one direction, for example, clockwise.

  When the main body case 26 rotates, the gear B31 meshed with the gear A17c rotates, the gear C43 meshed with the gear B31 rotates, and the cleaning body 41 protruding from the opening 27 of the main body case 26 also rotates at the same time. The dust adhering to the surface is efficiently removed and falls below the cleaning body 41.

  When the main body case 26 is rotated, the first rotating shaft 32 is rotated together with the gear B31. However, since the worm gear 33 is located at the portion A of the first rotating shaft 32, the worm gear 33 is moved only by idling there. No, that is, the dust transfer means 45 remains in the A part.

  Then, after rotating the main body case 26 a few times to clean the air filter 17, when the second operation switch (not shown) is operated, the rotation of the main body case 26 is temporarily stopped. Then, the worm gear 33 is moved on the first rotating shaft 32 to a position outside the portion A, that is, to a position where the convex rib 32a of the first rotating shaft 32 and the concave portion 33a of the worm gear 33 are fitted by a moving mechanism (not shown). .

Further, the clutch mechanism is operated so that the rotational power applied to the gear C43 is not transmitted to the second rotation shaft 41a.
Then, the driving means 22 is driven again to rotate the main body case 26, for example, clockwise. Then, the gear B31 is rotated, and at the same time, the worm gear 33 is rotated, and the gear B31 is moved in the direction opposite to the portion A, in the right direction in the example of FIG. At this time, the dust transfer means 45 partially fitted in the groove 33 b of the worm gear 33 moves together with the worm gear 33 to transfer the dust that has fallen below the cleaning body 41 to the dust container 28.

  While the dust transfer means 45 is moving, the clutch mechanism operates and the gear C43 is merely idled, so that no power is transmitted to the second rotating shaft 41a. That is, the rotation of the second rotation shaft 41a becomes free, and the cleaning body 41 that is in contact with the air filter 17 simply rotates so as to roll on the surface of the air filter 17, and remains on the surface of the air filter 17. Dust is not scraped off. In other words, while the dust transfer means 45 is moving in the right direction, dust does not newly fall on the left side of the dust transfer means 45.

  In this embodiment, the number of teeth of the gear B31 and the rack gear 34 is set so that the dust transfer means 45 reaches the right end in the main body case 26 when the main body case 26 is rotated once.

Then, after the main body case 26 is rotated once and the dust transfer means 45 reaches the right end in the main body case 26, the drive means 22 is reversed to move the worm gear 33 together with the dust transfer means 45 to the position at the start of operation, That is, it returns to the position next to the A part. Then, the moving mechanism is operated to return the worm gear 33 to the position of the A part of the first rotating shaft 32.
The method for discarding the dust accumulated in the dust storage portion 28 of the main body case 26 is the same as that in the first embodiment, and will not be described.

  As described above, according to the cleaning device 40 in the present embodiment, the dust adhered to the surface of the air filter 17 is removed while rotating the cleaning body 41 within the main body case 26. The removal performance of attached dust is greatly improved.

  Further, since the gear B31 and the gear C43 are engaged with each other and the cleaning body 41 is rotated by using the rotation of the main body case 26 as a driving source, a dedicated driving means for rotating the cleaning body 41 is not required. The cleaning device 40 having excellent removal performance can be provided at low cost. In particular, when a motor or the like is used as the driving means, the electrical wiring therefor becomes unnecessary, so that assembly is facilitated.

  Furthermore, the cleaning device 20 or 40 is provided in the air conditioner 1 that includes the indoor heat exchanger 15 and an air filter 17 that is disposed upstream of the indoor heat exchanger 15 and captures dust contained in the inflowing air. If the dust attached to the air filter 17 is removed by the cleaning device 20 or 40, an air conditioner that can exhibit stable air conditioning performance over a long period of time is provided at low cost. Can do.

  As described above, the air conditioner cleaning device and the air conditioner according to the present invention are small in size, easy to assemble, and do not deteriorate the air conditioning performance of the air conditioner. It can be applied not only to various air conditioners but also to various devices having an air filter such as an air purifier and a ventilator.

Whole perspective view of an air conditioner equipped with a cleaning device for an air conditioner in the present embodiment Cross section of the air conditioner Half bottom view of the air filter of the air conditioner Perspective view of the air conditioner cleaning device (A) Cross-sectional view of drive shaft and fitting hole of cleaning device for air conditioner (before fitting), (b) Cross-sectional view showing a state where the driving shaft and fitting hole are fitted. Perspective view of the air conditioner cleaning device AA sectional view of FIG. BB sectional view of FIG. 6 (including the cross section of the air filter) The perspective view of the cleaning apparatus for air conditioners in 2nd Example of this invention. Perspective view of the air conditioner cleaning device CC sectional view of FIG. 10 (including the cross section of the air filter) DD sectional view of FIG. 10 (including the cross section of the air filter)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Indoor unit 17 Air filter 20, 40 Cleaning apparatus (cleaning apparatus) for air conditioners
21 Drive shaft 25 Fitting hole 26 Body case 27 Opening 28 Dust storage part 30, 41 Cleaning body 37, 45 Dust transfer means

Claims (6)

A main body case that rotates along the upstream surface of the air filter built in the air conditioner and has an opening facing the air filter, a drive shaft that rotates the main body case, and the opening facing the opening, A cleaning body that removes dust adhering to the surface of the air filter while rotating about the drive shaft, and the drive shaft is detachably fitted to the body case, and the rotation of the drive shaft With the center as a boundary, the opening facing the cleaning body on one side of the main body case is provided, and on the other side, a dust container for storing the dust removed by the cleaning body is provided, and is removed by the cleaning body in the main body case. A cleaning device for an air conditioner , comprising: a dust transfer means for transferring the dust collected in the dust container to the dust container .   The cleaning device for an air conditioner according to claim 1, wherein dust adhering to the surface of the air filter is removed while rotating the cleaning body within the main body case.   The cleaning device for an air conditioner according to claim 2, wherein the cleaning body is rotated in the main body case using the rotation of the main body case as a drive source. The cleaning device for an air conditioner according to any one of claims 1 to 3 , wherein the dust transfer means is driven using rotation of the main body case as a drive source. The air conditioner cleaning device according to any one of claims 1 to 4 , wherein the dust transfer means is not driven while dust on the surface of the air filter is removed by the cleaning body. A heat exchanger, an air filter that is arranged upstream of the heat exchanger and captures dust contained in inflowing air, and the air conditioner cleaning device according to any one of claims 1 to 5. Air conditioner equipped.

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