JP2007298193A - Spinning rotor for air conditioner, and air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spinning rotor for an air conditioner of a small rotating diameter while securing necessary strength and dust scraping-off performance. <P>SOLUTION: This spinning rotor comprises a rotor 30 having at least one groove 31 in the longitudinal direction, and a cleaning body 32, and the cleaning body 32 is composed of a brush portion 32a for scraping off the dust on an air filter (not shown in figure), and a basic portion 32b to which a lower end of the brush portion 32a is fixed and which is fitted in the groove 31. When the basic portion 32b is fitted to the groove 31, the basic portion 32c of the brush portion 32a passes through a center C of the rotation of the rotor 30, and positioned at a side opposite to an opening 31a over a central line CL vertical to the longitudinal direction of the brush portion 32a, thus the rotating diameter of the rotor 25 can be reduced while keeping the dust scraping-off performance by securing necessary projecting margin from the opening portion 31a of the brush portion 32a, and the air conditioner provided with the spinning rotor 25 can be thinned and miniaturized. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a rotary rotor for an air conditioner that removes dust accumulated on an air filter attached to the air conditioner, and an air conditioner using the same.

  A conventional rotary rotor for an air conditioner will be described with reference to FIGS. FIG. 8 is a longitudinal sectional view of an air conditioner equipped with a conventional rotary rotor for an air conditioner, and FIG. 9 is a perspective view of the rotary rotor for the air conditioner.

  In FIG. 8, in the air conditioner main body 1, a heat exchanger 2, a suction port 3 for taking in indoor air, and a belt-like air filter provided between the heat exchanger 2 and the suction port 3. 4, a drive shaft 6 and a driven shaft 7 on which the air filter 4 is stretched, a servo motor 5 that rotationally drives the drive shaft 6, and a rotation for an air conditioner that removes dust collected by the filter 4 A rotor 8 (hereinafter referred to as “rotary rotor 8”), a driving means (not shown) for rotationally driving the rotary rotor 8, and the rotary rotor 8 communicated with the suction port 3 and a discharge port 9 provided. The exhaust pipe 10, the dust discharge fan 11 provided in the exhaust pipe 10, the indoor air from the suction port 3, and the heat-exchanged air from the blowout port 12 through the heat exchanger 2. It is equipped with fan 13 blowing out indoors To have.

  As shown in FIG. 9, the rotary rotor 8 is composed of a rotatable rotor 8a and a brush-like cleaning body 8b linearly planted in the longitudinal direction of the outer periphery of the rotor 8a.

  The operations and effects of the rotary rotor 8 and the air conditioner configured as described above are as follows.

  When the air conditioner main body 1 is in a cooling operation, for example, indoor air flows from the inlet 3 by the fan 13, passes through the air filter 4, reaches the heat exchanger 2, and is cooled there. Is blown out into the room. Dust contained in the indoor air to be sucked is collected by the air filter 4 and deposited on the surface of the filter 4. If dust accumulates on the surface of the air filter 4, the air pressure loss of air increases and the heat exchange efficiency decreases. Therefore, the dust on the air filter 4 can be removed periodically or as necessary. Driving is required.

  In the dust removal operation, the servo motor 5 is operated to rotate the drive shaft 6 to continuously move the belt-like filter 4, while the rotary rotor 8 is rotated and the dust discharge fan 11 is operated. Thus, dust on the air filter 4 is scraped off by the cleaning body 8b of the rotary rotor 8, and the scraped dust is sucked by the dust discharge fan 11 and discharged from the discharge port 9 to the outside. (For example, refer to Patent Document 1).

Further, as another conventional example of the rotary rotor, there is a conventional rotor as shown in FIG. 10 although it is not for an air conditioner (for example, see Patent Document 2).
FIG. 10 shows a cross-sectional view of a conventional rotary rotor used for a floor suction tool of a vacuum cleaner, and the rotary rotor 15 is provided with a pair of spiral grooves 16 in the longitudinal direction and in axial symmetry. The rotor 17 and the cleaning body 18 are composed of a brush portion 18a for scraping dust, and a base portion 18b for fixing the lower end of the brush portion 18a and being mounted in the groove 16. Yes. The brush portion 18a is constituted by a bundle of ultrafine fibers, a blade made of nonwoven fabric, vinyl chloride, or the like.
JP-A-6-74521 Japanese Patent Laid-Open No. 6-105711

  However, the conventional rotary rotor 8 as described in Patent Document 1 is configured by implanting the cleaning body 8b in the rotor 8a, that is, the hole 8c is provided on the outer periphery of the rotor 8a, and the cleaning body is provided in the hole 8c. Since the configuration is such that the end of 8b is embedded, the outer diameter of the rotating rotor 8, that is, the rotating diameter L1, is inevitably increased. For this reason, the rotating rotor 8 is air-conditioned as in the conventional example. When it is mounted on a machine, the storage space of the rotary rotor 8 becomes large, the size of the air conditioner increases, or the height of the air conditioner is maintained at a predetermined dimension, the height of the heat exchanger 2 is increased accordingly. As a result, the air conditioning performance of the air conditioner is reduced.

  Further, even in the configuration of the conventional rotary rotor 15 as described in Patent Document 2 above, from the viewpoint of ensuring the required strength of the rotor 17, the gap between the bottom surface of one groove 16 and the bottom surface of the other groove 16 is not limited. The distance G must have a predetermined dimension, that is, a predetermined thickness, and there is a limit to the reduction in the diameter of the rotary rotor 1, and if it is to be mounted on an air conditioner, the air conditioner Increase in size cannot be avoided.

  In order to reduce the rotation diameter L1 of the rotary rotors 8 and 15, a method of shortening the brush portion 18a of the cleaning body 8b and the cleaning body 18 is also conceivable. For example, the cleaning body 8b and the brush portion 18a are made of ultrafine fibers. In the case where it is formed, the strain of the fiber becomes strong, and when it is used for cleaning the air filter of an air conditioner, there arises a problem that the air filter is worn early. In addition, when the cleaning body 8b and the brush portion 18a are formed of a blade made of vinyl chloride or the like, if the cleaning body 8b or the brush portion 18a is shortened, the bending performance is deteriorated, and the cleaning body 8b or the brush portion 18a side is brought into an early stage. There is a problem of deterioration. Therefore, it is not preferable to simply shorten the cleaning body 8b and the brush portion 18a.

  Further, when the rotary rotors 8 and 15 as described above are arranged in front of the air filter, since the rotation diameter L1 of the rotary rotor 8 and the rotary rotor 15 for the air conditioner is large, the depth dimension of the air conditioner is large. Therefore, there is a problem that the air conditioner is further increased in size.

  The present invention solves the above-described conventional problems, and does not reduce the scraping performance of dust accumulated on the air filter, and while maintaining the necessary strength as a rotating rotor, the air conditioner has a smaller rotating diameter. An object of the present invention is to provide a rotary rotor for a machine, and thus to provide a small air conditioner.

  In order to solve the above-described conventional problems, an air conditioner rotary rotor according to the present invention is an air conditioner rotary rotor that removes dust accumulated on an air filter attached to an air conditioner, and has a longitudinal direction. The cleaning body includes a rotor having at least one groove and a cleaning body, and the cleaning body is attached to the groove while a brush portion for scraping dust on the air filter is fixed to a lower end of the brush portion. The base portion of the brush portion passes through the rotation center of the rotor and extends in the longitudinal direction of the brush portion when the base portion is attached to the groove while the brush portion protrudes from the opening of the groove. It is located on the opposite side of the opening beyond the vertical center line, and the root part of the brush part is located on the opposite side of the opening from the rotation center of the rotor. of It is possible to reduce the rotation diameter of the rotating rotor while ensuring the necessary protrusion margin from the mouth and maintaining the dust scraping performance, and thus downsizing the air conditioner on which the rotating rotor is mounted. I can do it.

  The air conditioner according to the present invention is a heat exchanger for exchanging heat with air, an air filter that is arranged upstream of the heat exchanger and captures dust contained in the flowing air, and the air conditioner according to claim 1. Since the rotation diameter of the air conditioner rotary rotor is small, the air conditioner can be easily reduced in thickness or size.

  The rotary rotor for an air conditioner of the present invention has a small rotation diameter without deteriorating the scraping performance of dust accumulated on the air filter and ensuring the necessary strength as the rotary rotor. By using the rotary rotor for a machine, a small air conditioner can be provided.

  A first invention is a rotary rotor for an air conditioner that removes dust accumulated on an air filter attached to an air conditioner, the rotor having at least one groove in the longitudinal direction, and a cleaning body. The cleaning body includes a brush part that scrapes off dust on the air filter and a base part to which a lower end of the brush part is fixed and attached to the groove, and the brush part protrudes from an opening of the groove. When the base portion is mounted in the groove, the root portion of the brush portion passes through the rotation center of the rotor and exceeds a center line that is perpendicular to the longitudinal direction of the brush portion, on the opposite side to the opening. Since the root part of the brush part is located on the side opposite to the opening from the rotation center of the rotor, the necessary protrusion margin from the opening part of the groove of the brush part is ensured and dust scraping is performed. Performance Lifting and it is possible to reduce the rotation diameter of the rotating rotor while, in turn, can be made compact air conditioner that rotating rotor is mounted.

  According to a second aspect of the present invention, in the air conditioner, a heat exchanger that exchanges heat with air, an air filter that is arranged upstream of the heat exchanger and captures dust contained in the flowing air, and Since the air conditioner rotary rotor has a small rotation diameter, the air conditioner can be thinned or miniaturized easily.

  Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited to the following examples.

Below, the rotary rotor for air conditioners in the 1st Example of this invention is demonstrated using FIGS.
FIG. 1 is a longitudinal sectional view of an air conditioner equipped with a rotary rotor for an air conditioner according to the present embodiment, FIG. 2 is a perspective view showing an outline of the internal configuration of the air conditioner, and FIG. The perspective view of the rotary rotor for machines, the perspective view of the cleaning body of the rotary rotor for air conditioners, FIG. 5 is the side view of the rotary rotor for the air conditioners.

  1 and 2, the air conditioner body 20 is disposed between the heat exchanger 21, a suction port 22 for taking in indoor air, and between the heat exchanger 21 and the suction port 22. An air filter 23 that captures dust contained in the inflowing air, and an air conditioner rotary rotor 25 that is disposed on the upstream side of the air filter 23 and that removes dust captured by the air filter 23 (hereinafter referred to as the air filter 23). , "Rotating rotor 25"), rotation driving means (not shown) for rotating the rotating rotor 25, and moving the rotating rotor 25 in the vertical direction along the upstream surface of the air filter 23. The indoor air is sucked from the vertical movement means (not shown) and the suction port 22, and the heat-exchanged air is discharged from the blowout port 26 through the air filter 23 and the heat exchanger 21. And a fan 27 to be blown into the inside.

  In the present embodiment, the air filter 23 is divided into two parts on the left and right sides, and is detachable from the air conditioner body 20 for easy cleaning. The rotating rotor 25 is provided to face each air filter 23.

  Next, a detailed configuration of the rotary rotor 25 in the present embodiment will be described with reference to FIGS. 3 is a perspective view of the rotating rotor, FIG. 4 is a perspective view of a cleaning body of the rotating rotor, and FIG. 5 is a side view of the rotating rotor.

  3 to 5, the rotary rotor 25 is formed of a metal material such as aluminum, and in the longitudinal direction thereof, a rotor 30 provided with a pair of spiral grooves 31 axisymmetrically, and a rotor 30 are detachably mounted. A cleaning body 32 that scrapes off dust from the air filter 23 and a cap 33 for preventing the cleaning body 32 from coming off are included. The groove 31 does not necessarily have to be spiral, and may be linear. In this embodiment, the effective cleaning width L3 of the rotary rotor 25 (the overall width dimension of the cleaning body 32) is set to 300 mm or more in accordance with the width dimension of the air filter 23 for a general air conditioner.

  In this embodiment, the rotary rotor 25 is divided into two parts in accordance with the two air filters 23 arranged in parallel in the horizontal direction, but one continuous piece straddling the two air filters 23 arranged in parallel. The long rotary rotor 25 may be provided, and the two air filters 23 may be cleaned simultaneously.

  As shown in FIG. 4, the cleaning body 32 fixes a brush portion 32 a made of a large number of ultrafine fibers and the like, and a base portion 32 b that is detachably mounted in a groove 31 provided in the rotor 30 while fixing the lower end of the brush portion 32 a. It is composed of The brush portion 32a is not limited to fibers, but may be formed of a blade-like material made of a soft material such as vinyl chloride, or a non-woven fabric. The method of fixing the brush portion 32a and the base portion 32b is not particularly limited, for example, the brush portion 32a is implanted in the base portion 32b, the two are bonded, or one is sandwiched between the other.

  In this embodiment, when the base portion 32b is attached to the groove 31 while the brush portion 32a protrudes from the opening 31a of the groove 31, the root portion 32c of the brush portion 32a is rotated by the rotation of the rotor 30 as shown in FIG. It passes through the center C and exceeds the center line CL perpendicular to the longitudinal direction of the brush portion 32a so as to be positioned on the opposite side of the opening 31a.

The operation and action of the air conditioner equipped with the air conditioner rotary rotor configured as described above are as follows.
For example, when the air conditioner main body 20 is in a cooling operation, indoor air flows from the suction port 22 by the operation of the fan 27, passes through the air filter 23, reaches the heat exchanger 21, and is cooled there. 26 is blown into the room. Dust contained in indoor air sucked from the suction port 22 is captured by the air filter 23 and gradually accumulates on the surface of the air filter 23. If dust accumulates on the surface of the air filter 23, the air pressure loss of air increases and the heat exchange efficiency in the heat exchanger 21 decreases. Therefore, the air filter is periodically or as needed. The operation of removing the dust accumulated on 23 is required.

  Therefore, in this embodiment, when the dust removal operation is started, as shown in FIG. 2, the rotary rotor 25 located at the lower end of the air filter 23 is moved in the direction of the arrow (clockwise) by the rotation drive means (not shown). While moving in the direction), the upper and lower moving means (not shown) moves upward along the surface of the air filter 23. During this time, dust adhering to the upstream surface of the air filter 23 is scraped off at the tip of the brush portion 32a of the cleaning body 32. The dust scraped off is sucked by a dust suction means (not shown) and discharged to the outdoors.

  When the rotary rotor 25 reaches the upper end of the air filter 23 by the vertical movement means, it automatically descends and stops at the lower end of the air filter 23 for the next dust removal operation. Further, the rotation direction of the rotary rotor 25 may be the direction opposite to the arrow direction (counterclockwise direction), and the rotation direction may be appropriately determined in consideration of the cleaning performance and the like.

  As described above, according to the present embodiment, the root portion 32c of the brush portion 32a passes through the rotation center C of the rotor 30 and exceeds the center line CL perpendicular to the longitudinal direction of the brush portion 32a. Therefore, the rotation diameter L2 of the rotary rotor 25 is reduced while maintaining the dust scraping performance by securing the necessary protrusion margin of the brush portion 32a from the opening 31a of the groove 31. Thus, it can be made significantly smaller than the conventional rotational diameter L1. Therefore, even if the rotary rotor 25 in the present embodiment is mounted on the air conditioner main body 20, the space for storing the rotary rotor 25 can be reduced, so that the air conditioner main body 20 can be reduced in thickness and size. .

  Further, by providing the rotor 30 with a pair of grooves 31 symmetrically about the axis, it becomes easy to balance the rotation of the rotary rotor 25, thereby reducing vibration and noise during rotation of the rotary rotor 25, and the rotor during rotation. Since the stress applied to 30 is small, the durability of the rotary rotor 25 is improved.

  Further, since the base portion 32 b of the cleaning body 32 can be inserted into and removed from the groove 31 of the rotor 30, the assembly of the rotary rotor 25 is easy. Further, the cleaning body 32 scrapes off dust on the mesh-like air filter 23, so that the cleaning body 32 is worn out. However, since the base 32b can be inserted into and removed from the groove 31 of the rotor 30, the cleaning body 32 is consumed. The entire rotary rotor 25 does not need to be replaced, and only the cleaning body 32 is replaced. Therefore, the maintenance cost of the air conditioner is low.

  Further, since the groove 31 is formed in a spiral shape in the longitudinal direction of the outer periphery of the rotor 30, the brush portion 32 a of the cleaning body 32 is spiraled by inserting the base portion 32 b of the cleaning body 32 into the groove 31. Since the tip of the brush portion 32a is partially in contact with the air filter 23 and the sliding resistance is dispersed, the rotational drive means for rotationally driving the rotary rotor 25 can be reduced in size, and the air The filter 23 can be uniformly cleaned without unevenness.

  Further, by forming the rotor 30 with a metal material, the strength is increased, and accordingly, the rotor 30 can be formed with a smaller diameter, thereby saving space. In particular, in the horizontally long air conditioner body 20, since the air filter 23 is horizontally long, the rotary rotor 25 also needs to be long. However, by forming the rotor 30 from a metal material, the necessary strength can be ensured. Becomes easier. Further, deformation such as warpage is less likely to occur, and the cleaning efficiency is improved by the rotary rotor 25 having good finishing accuracy.

  In addition, as a manufacturing method of the rotor 30, a method of extruding while twisting the material of the rotor 30 with a twist extrusion die, and extruding the material of the rotor 30 while twisting with a die, an angle smaller than a target twist angle once. The rotor 30 is made, and the rotor 30 is finished by twisting to the target twist angle by post-processing, and the material of the rotor 30 is extruded straight and twisted to the target twist angle by post-processing. There are various methods such as a method of providing a moving plate rotating in the torsional direction on the same line, simultaneously extruding the material of the rotor 30 with a mold, and simultaneously twisting to finish the target torsion angle. The manufacturing method and the processing method may be appropriately determined in consideration of the cross-sectional shape, material, thickness, strength, torsion angle, required accuracy, and the like of the rotor 30.

  Moreover, in the said Example, although the groove | channel 31 was provided in the rotor 30 with one pair, as shown in FIG. 6, only one groove | channel 31 may be provided and the cleaning body 32 may be mounted | worn there. In the case of the conventional rotary rotor, it was difficult to provide only one cleaning body 32 because of the balance during rotation, but in this embodiment, the root portion 32c of the brush portion 32a is the rotation center of the rotor 30. Since it passes through C and exceeds the center line CL perpendicular to the longitudinal direction of the brush portion 32 a, it is positioned on the opposite side of the opening 31 a, that is, the heavy base portion 32 b is opened from the rotation center C of the rotor 30. It comes to be located on the opposite side to 31a and is relatively easy to balance.

  Further, as shown in FIG. 7A, the rotor 30 may be provided with four grooves 31, and the cleaning body 32 may be provided in the grooves 31. Also in this case, when the cleaning body 32 having the same size is used, the rotation diameter L2 can be surely reduced as compared with the conventional rotary rotor shown in FIG.

  As described above, the rotating rotor for an air conditioner according to the present invention has a small rotating diameter while ensuring the necessary strength as a rotating rotor without deteriorating the scraping performance of dust accumulated on the air filter. It can be applied not only to various air conditioners for home and business use, but also to various devices having an air filter such as an air purifier and a ventilator.

The longitudinal cross-sectional view of the air conditioner carrying the rotary rotor for air conditioners of Example 1 of this invention The perspective view which shows the outline of the internal structure of the air conditioner Perspective view of the rotary rotor for the air conditioner The perspective view of the cleaning body of the rotary rotor for the air conditioner Side view of the rotary rotor for the air conditioner Side view of a rotary rotor for an air conditioner showing another example (A) Side view of rotary rotor for air conditioner showing another example, (b) Cross-sectional view of conventional rotary rotor for air conditioner Sectional view of an air conditioner equipped with a conventional rotary rotor for an air conditioner Perspective view of the rotary rotor for the air conditioner Side view of a rotating rotor showing another conventional example

Explanation of symbols

20 Air Conditioner Body 21 Heat Exchanger 22 Suction Port 23 Air Filter 25 Rotating Rotor for Air Conditioner (Rotating Rotor)
26 Outlet 27 Fan 30 Rotor 31 Groove 31a Opening 32 Cleaning Body 32a Brush Part 32b Base 32c Root Part

Claims (2)

An air conditioner rotary rotor for removing dust accumulated on an air filter attached to an air conditioner, comprising: a rotor having at least one groove in a longitudinal direction; and a cleaning body, A brush part for scraping dust on the air filter; and a base part to which the lower end of the brush part is fixed and attached to the groove, and the base part is protruded from the opening of the groove. When mounted in the groove, the air is such that the base of the brush part is positioned on the opposite side of the opening beyond the center line passing through the rotation center of the rotor and perpendicular to the longitudinal direction of the brush part. Rotary rotor for a harmonic machine. 2. A heat exchanger that exchanges heat with air, an air filter that is arranged upstream of the heat exchanger and captures dust contained in the inflowing air, and the rotary rotor for an air conditioner according to claim 1. Air conditioner.

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