JP2019136670A - Air filter cleaning device, show case, and air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air filter cleaning device capable of removing dust adhering to an air filter and preventing the dust once removed from reattaching to a rotating brush. An air filter cleaning device includes an air filter, a rotary cleaning body 11 including a rotary shaft 11a and a brush body 11b, and a dust box 12, and the dust box 12 is a brush of the rotary cleaning body 11. It is formed so as to receive the dust discharged from the body 11b, and a plurality of partition plates 16a and 16a are formed on the inner wall 12a and incline downward as the distance from the rotary cleaning body 11 increases in order to keep the dust away from the rotary cleaning body 11. It is installed to do. [Selection diagram] Fig. 3

Description

  The present invention relates to an air filter cleaning device including a rotary cleaning body that cleans an air filter, and a showcase and an air conditioner including the air filter cleaning device.

  2. Description of the Related Art Conventionally, an air filter cleaning device that is installed inside a showcase or the like and removes dust or the like attached to an air filter is known (Patent Document 1).

  The air filter cleaning device of Patent Document 1 is installed at a position where an air filter that is arranged in front of the condenser and can move in the left-right direction passes, and the rotating brush contacts the air filter and adheres to the air filter. While removing dust, the dust adhering to the rotating brush is configured to be peeled off by a dust removing portion having an uneven shape.

JP 2014-20772 A

  However, the air filter cleaning device described in Patent Document 1 has a problem that the dust peeled off by the dust removing portion locally accumulates in the vicinity of the rotating brush and reattaches to the rotating brush.

  The present invention solves the above-described conventional problems, and removes dust adhering to the air filter and prevents the dust once removed from reattaching to the rotating brush, An object is to provide a showcase and an air conditioner equipped with an air filter cleaning device.

  In order to solve the conventional problem, an invention of an air filter cleaning device according to claim 1 is an air filter cleaning device having an air filter, a rotary cleaning body including a rotary shaft and a brush body, and a dust box. The air filter is installed at a position in contact with the rotary cleaning body, the rotary cleaning body is installed such that its longitudinal direction is substantially coincident with the vertical direction, and the dust box is the brush of the rotary cleaning body. The dust box is formed with a plurality of partition plates on the inner wall, and the partition plate is separated from the rotary cleaning body in order to keep the dust away from the rotary cleaning body. It is installed so that it may incline below as it leaves | separates.

  According to the first aspect of the present invention, since the rotary cleaning body is installed so that its longitudinal direction coincides with the substantially vertical direction, the dust discharged from the brush body falls downward due to gravity and is stored in the dust box. The And since the partition plate installed in the dust box is installed so that it may incline below as it leaves | separates from a rotation cleaning body, it can prevent that dust adheres to a rotation cleaning body again. Further, by installing a plurality of partition plates on the inner wall of the dust box, it is possible to prevent dust from being locally accumulated in the dust box.

  According to a second aspect of the present invention, in the air filter cleaning device of the first aspect, the air filter includes a filter body and a lattice frame that divides the filter body into a plurality of parts, and the partition plate has a rotary cleaning body side. The end portion is formed on an extension line of the lattice frame of the air filter. Therefore, by arranging the partition plate at the dust break, it becomes easier to separate the cotton-like or carpet-like dust, it is possible to prevent the dust from accumulating in the vicinity of the rotary cleaning body, and the dust is re-applied to the rotary cleaning body. It can be prevented from adhering. Moreover, the resistance at the time of dust accommodation can be reduced.

  According to a third aspect of the present invention, in the air filter cleaning device of the first or second aspect, the partition plate is in contact with the brush body of the rotary cleaning body. Therefore, since the dust can be guided by the partition plate at the same time as the dust is separated from the rotary cleaning body, it is possible to further prevent the dust from reattaching to the rotary cleaning body. Further, the partition plate can separate and divide the cotton-like or carpet-like dust from the rotary cleaning body.

  According to a fourth aspect of the present invention, in the invention of the air filter cleaning device according to any one of the first to third aspects, the partition plate is formed such that the cross section in the thickness direction of the end portion on the rotating cleaning body side has an acute angle. It is characterized by that. Therefore, since the dust accumulated in the form of cotton or carpet can be cut, it is possible to prevent dust from accumulating in the vicinity of the rotary cleaning body and reattachment of dust to the rotary cleaning body.

  The invention of the showcase according to claim 5 is the condenser provided in the gantry, the blower fan for sending air to the condenser, and the air filter according to any one of claims 1 to 4 disposed in front of the condenser. And a cleaning device. Therefore, in the air filter cleaning device installed in the showcase, the dust storage efficiency can be increased, and the number of times the dust collected in the dust box can be taken out can be reduced.

  The invention of the air conditioner of claim 6 comprises a main body having an air passage for guiding air sucked from an air inlet to an air outlet, a blower fan in the main body, and the air according to any one of claims 1 to 4. And a filter cleaning device. Therefore, in the air filter cleaning device installed in the air conditioner, the dust storage efficiency can be increased, and the number of times the dust collected in the dust box can be taken out can be reduced.

  The invention of the air filter cleaning device according to claim 1 can prevent the dust from reattaching to the rotary cleaning body, can prevent the dust from accumulating locally in the dust box, and increases the dust storage efficiency. be able to. Further, the invention of the air filter cleaning device according to claim 2 can prevent dust from accumulating in the vicinity of the rotary cleaning body and can easily separate the dust. Further, the invention of the air filter cleaning device according to claim 3 can further prevent the dust from reattaching to the rotary cleaning body, and separates and divides the cotton-like or carpet-like dust from the rotary cleaning body. be able to. Further, the invention of the air filter cleaning device according to claim 4 can cut the dust accumulated in the form of cotton or carpet, so that dust accumulates in the vicinity of the rotary cleaning body and dust is re-applied to the rotary cleaning body. Adhesion can be prevented.

  The invention of the showcase of claim 5 can increase the dust storage efficiency in the air filter cleaning device installed in the showcase, and can reduce the number of times the dust collected in the dust box is taken out. In the air conditioner according to the sixth aspect of the present invention, it is possible to increase the dust storage efficiency in the air filter cleaning device installed in the air conditioner, and to reduce the number of times the dust collected in the dust box is taken out.

(A) Perspective view of a showcase according to the present invention (b) Perspective view of an air filter cleaning device according to the present invention Partial sectional view of a showcase according to the present invention Perspective view of the main body of the cleaning device Front view showing the air filter cleaning device during cleaning (initial position) Front view showing the air filter cleaning device during cleaning (intermediate position) Front view showing the air filter cleaning device during cleaning (terminal position) Partial enlarged view of FIG. (A)-(c) The perspective view which shows the Example of a partition plate (A) Cross-sectional view (initial position) showing the state during cleaning of the air filter cleaning device (b) Cross-sectional view (intermediate position) showing the state during cleaning of the air filter cleaning device (c) During cleaning of the air filter cleaning device Sectional view showing end condition (end position) (A) The perspective view which looked at the air conditioner which concerns on this invention from the front direction (b) The perspective view which looked at the air conditioner which concerns on this invention from the back direction

  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.

  FIG. 1A is a perspective view showing a showcase according to the present invention, and FIG. 1B is a perspective view of an air filter cleaning device according to the present invention. FIG. 2 is a partial cross-sectional view of the showcase according to the present invention. An outline of the showcase and the air filter cleaning device according to the present invention will be described below with reference to these drawings.

  A showcase 1 according to the present invention includes a box-shaped casing 2 provided with opening / closing doors 2a, 2a, and a refrigerant circuit that is provided on the top of the casing 2 and generates cool air to be supplied into the casing 2. It is comprised with the stand 3 accommodated. The casing 2 includes a display shelf 4 for displaying food and the like, a blowout port (not shown) through which cool air generated by the refrigerant circuit is blown, and the cold air blown from the blowout port is sucked after passing through the display shelf 4 A suction port (not shown) and an LED lamp (not shown) for illuminating the display shelf 4 are provided. The cool air sucked from the suction port is returned to the refrigerant circuit and blown out from the blowout port again.

  A detachable front panel 5 is attached to the front surface of the gantry 3, and a compressor (not shown), a condenser 6, an evaporator (not shown) constituting a refrigerant circuit, and a refrigerant are installed in the gantry 3. An electrical box (not shown) that houses a substrate for controlling a circuit, a fluorescent lamp, and the like is disposed. A plurality of air inlets 7 for supplying outside air to the condenser 6 are formed at locations facing the condenser 6 on the front panel 5. A blower fan 8 that supplies outside air to the condenser 6 through the air inlet 7 is disposed behind the condenser 6.

  Between the air inlet 7 of the front panel 5 and the condenser 6, an air filter 9 that collects dust contained in the outside air supplied to the condenser 6, and rotational cleaning that removes dust attached to the air filter 9. An air filter cleaning device 10 having a body 11 and a dust box 12 is provided.

  In the air filter cleaning device 10, a rotary cleaning body 11 and a dust box 12 are installed in a cleaning device main body 10 a, and a rack (not shown) is provided in the cleaning device main body 10 a along the longitudinal direction of the air filter 9. ) And a drive gear A13b and a drive gear B13c that are rotated by the pinion gear. Therefore, when the pinion gear 13a is rotated by a motor (not shown), the drive gear A13b is rotated and integrally moved along the longitudinal direction of the air filter 9. And it is set as the structure which rotates the drive gear B13c, meshing | engaging with drive gear A13b, and the rotating cleaning body 11 connected. The air filter 9 includes a filter body 9a and a lattice frame 9b that divides the filter body 9a into a plurality of pieces.

  FIG. 3 is a perspective view of the cleaning device main body, and the cleaning device main body will be described with reference to FIG. 3. The cleaning device main body 10a partially constitutes a dust box 12, and rotatably supports a rotary cleaning body 11 including a rotary shaft 11a and a brush body 11b. In addition, a lid 14 that can be opened and closed to close the opening of the dust box 12 is provided, and a comb-like dust removing body 15 is provided at an end of the lid 14 in the longitudinal direction. FIG. 3 shows a state in which the lid body 14 is open. When the lid body 14 is closed, the dust removing body 15 is in contact with the brush body 11b of the rotary cleaning body 11 so as to be inserted.

  As shown in FIG. 3, the dust box 12 is formed to receive dust discharged from the brush body 11b of the rotary cleaning body 11, and a plurality of partition plates 16a and 16a are installed on the inner wall 12a. The partition plate 16 a is installed so as to be inclined downward as it moves away from the rotary cleaning body 11 in order to keep dust away from the rotary cleaning body 11. Although the bottom surface 12b of the dust box 12 is not inclined in FIG. 3, the bottom surface 12b may be formed so as to be inclined downward as it is away from the rotary cleaning body 11, like the partition plate 16a. Included in the invention. The lid 14 is also provided with a plurality of partition plates 16b and 16b. The partition plate 16b is installed so as to incline downward as it moves away from the rotary cleaning body 11 in order to keep the dust away from the rotary cleaning body 11 in the same manner as 16a, and with the lid 14 closed, The side part of 16a and the side part of the partition plate 16b contact | abut, and it is set as the structure which becomes the one partition plate 16. FIG. The rotary cleaning body 11 is installed so that the longitudinal direction thereof is substantially coincident with the vertical direction. This indicates a state in which the dust slides on the partition plate 16a and moves away from the rotary cleaning body 11. . Further, the rotary cleaning body 11 is formed by spirally winding a brush body 11b around a rotating shaft 11a. When the partition plate 16 is brought into contact with the brush body 11b as in the present embodiment, a spiral slope is formed. By making the direction coincide with the inclination direction of the partition plate 16, the resistance during rotation of the rotary cleaning body 11 is reduced.

4A is a front view (initial position) showing a state of the air filter cleaning device during cleaning, and FIG. 4B is a front view (intermediate position) showing a state of the air filter cleaning device during cleaning. FIG. 4C is a front view (terminal position) showing a state during cleaning of the air filter cleaning device. FIG. 5 is a partially enlarged view of FIG. In addition, these figures permeate | transmit and show a part of cleaning device main body so that the internal structure of a dust box can be seen. The operation of the air filter cleaning device according to the present invention will be described with reference to these drawings.

  FIG. 4A shows a state where the cleaning device main body 10a is at one end in the longitudinal direction of the air filter 9 which is the initial position. When the showcase 1 is refrigerated or refrigerated, dust A adheres to and accumulates on the filter body 9a when the outside air is supplied from the air inlet 7 to the condenser 6 by the blower fan 8 as described above. It becomes a carpet-like lump. Since dust does not adhere to the lattice frame 9b formed of a synthetic resin such as plastic, the dust A becomes a lump divided for each lattice frame 9b. Here, the end of the partition plate 16 on the rotary cleaning body 11 side is formed on an extension line of the lattice frame 9 b of the air filter 9. Further, the partition plate 16 is in contact with the brush body 11 b of the rotary cleaning body 11. The dust A adhering to the filter body 9a varies depending on the installation position of the air filter cleaning device 10. When the air filter cleaning device 10 is installed in a place close to the floor, lint, sand and the like are included. Further, in the present embodiment, the dust A is illustrated as a cotton-like or carpet-like lump, but the shape, such as dust that is not lumped and thinly deposited on the filter body 9a, or dust that partially adheres, Various states are assumed for the attachment position depending on the use environment.

  FIG. 4B and FIG. 5 show a state in which the cleaning device main body 10 a is in the middle position of the air filter 9 in the longitudinal direction. The cleaning device main body 10a moves from the initial position (FIG. 4A) toward a cleaning end position (FIG. 4C) described later. At that time, the dust A deposited on the filter body 9 a is first peeled off by the rotary cleaning body 11. Next, cotton-like or carpet-like dust A is divided by the partition plate 16. Here, although not shown, even when the dust A is thin cotton or fine dust, the dust adhering to the rotary cleaning body 11 is gradually collected in a lump while being scraped off by the comb teeth tip of the dust removal body 15. Then, it is divided by the partition plate 16. And since the partition plate 16 is installed so that it may incline below as it leaves | separates from the rotary cleaning body 11, it guides the divided dust A to the back of the dust box 12. FIG. Therefore, the dust A can be prevented from accumulating in the vicinity of the rotary cleaning body 11, and the dust A can be prevented from reattaching to the rotary cleaning body 11. Further, by arranging the partition plate 16 at the break of the dust A, the resistance when the dust A is accommodated is reduced. Furthermore, since the lower surface of the partition plate 16 is also inclined downward as it moves away from the rotary cleaning body 11, the divided dust A can be guided to the lower back of the dust box 12 after contacting the lower surface.

  FIG. 4C shows a state at the other end in the longitudinal direction of the air filter 9, which is the cleaning end position after the cleaning device body 10 a finishes the cleaning operation a plurality of times. In this state, the dust A accumulates on the lower left side in the drawing of each dust box 12 partitioned by the partition plate 16 by its own weight, and a gap is formed on the upper right side in the drawing. Adhesion can be prevented. In the present embodiment, the number of partition plates 16 is two, but the present invention is not limited to this. By increasing the number of installed partition plates 16, dust A can be efficiently stored in the dust box 12. Further, the angle of inclination of the partition plate 16 from the vertical direction is larger than that shown in the figure, whereby the dust A can be guided to the back of the dust box 12. However, when the inclination angle of the partition plate 16 is increased, the resistance when the dust A comes into contact with the lower surface of the partition plate 16 becomes large. Therefore, the preferable inclination angle of the partition plate 16 from the horizontal direction is larger than 0 degrees. It is 45 degrees or less. Moreover, the partition plate 16 should just be installed so that it may incline below as it leaves | separates from the rotary cleaning body 11, and the partition plate provided with a curved surface and a level | step difference is also contained in this invention.

  FIGS. 6A to 6C are perspective views showing examples of the partition plate. The partition plates 16c, 16d, and 16e shown in FIGS. 6 (a) to 6 (c) are rounded at the tip to prevent injury during the dust discharging operation, and the partition plates 16c and 16e cut dust. It is formed at an acute angle so that it can be easily done. The partition plate 16c shown in FIG. 6A has an inclined surface on the lower surface. Therefore, not only the dust on the upper surface of the partition plate 16c can be guided, but also the dust contacting the lower surface can be guided downward. Moreover, the partition plate 16d shown in FIG. 6B has a thin plate at the tip. Thereby, the strength of the base portion of the partition plate 16d is secured. In this case, the thickness of the tip portion (rotary cleaning body side end portion) is designed to be smaller than the width of the lattice frame of the air filter, so that the dust can be brought into contact with each other and the dust can be easily cut. be able to. The present invention also includes a case where the partition plate is uniformly thin. Further, the partition plate 16e shown in FIG. 6C has an inclined surface on the top surface of the tip. Thereby, it can be made easier to cut | disconnect dust more by arrange | positioning a front-end | tip part in the position facing a rotation cleaning body.

  7A is a cross-sectional view (initial position) showing a state of the air filter cleaning device during cleaning, and FIG. 7B is a cross-sectional view (intermediate position) showing a state of the air filter cleaning device during cleaning. FIG. 7C is a cross-sectional view (terminal position) showing a state during cleaning of the air filter cleaning device. FIG. 7A shows a state in which the cleaning device main body 10a is at one end in the longitudinal direction of the air filter 9 which is the initial position. In this state, the partition plate 16 is in contact with the rotary cleaning body 11. FIG. 7B shows a state in which the cleaning device main body 10a is in the middle position of the air filter 9 in the longitudinal direction. Moreover, the black arrow has shown the rotation direction of the rotary cleaning body 11. FIG. In this state, the dust A sent out from the rotary cleaning body 11 travels along the inner wall formed by the curved surface of the dust box 12 and is transferred to the back of the dust box 12 while drawing an arc. Since the inner wall is curved, the sent dust A can be smoothly transferred without receiving excessive resistance by the inner wall even after reaching the back of the dust box 12. Moreover, FIG.7 (c) has shown the state which exists in the other edge part of the longitudinal direction of the air filter 9 which is the cleaning termination position after the cleaning apparatus main body 10a complete | finished cleaning operation of multiple times. In this state, the dust A accumulated by a plurality of cleaning operations is accommodated in the dust box 12 so as to be compressed and divided into a lump so as to wrap around. Since the inner wall has a curved surface, a large number of dust particles A can be guided in an arc in the dust box 12 in order, so that the internal space can be used effectively and the accommodation efficiency can be increased. .

  Fig.8 (a) is the perspective view which looked at the air conditioner concerning this invention from the front direction, and FIG.8 (b) is the perspective view which looked at the air conditioner concerning this invention from the back direction. The air conditioner 20 according to the present invention includes a main body 23 having a suction port 21 and exhaust ports 22a and 22b, and a passing air passage (not shown) formed in the main body 23 and communicating the suction port 21 and the exhaust ports 22a and 22b. And a blower (not shown) for sucking outside air containing airborne dust in the room from the suction port 21 and discharging it from the exhaust ports 22a and 22b, and an air filter cleaning device (not shown) according to the present invention. I have. Further, in the vicinity of both side surfaces of the main body 23, vent holes (not shown) constituting a passage air passage are formed.

  The main body 23 includes a main body cover A 23a and a main body cover B 23b that can be attached to and detached from the main body cover A 23a. Exhaust ports 22a and 22b are formed on the front side of the main body cover A 23a. A main body cover B23b is detachably attached to the center of the back side of the main body cover A23a, and a handle 25 and a suction port 21 are formed in the main body cover B23b. And by removing main body cover B23b, it is possible to clean an air filter (not shown) with a cleaner or the like.

  The air conditioner 20 according to the present invention is configured as described above, and outside air including indoor floating dust sucked from the suction port 21 is removed from the air after the dust is removed by the air filter cleaning device. The gas is discharged from the exhaust ports 22a and 22b through the ports.

  The air filter cleaning device according to the present invention is installed and used in a showcase or an air conditioner in order to remove dust or the like adhering to the air filter.

DESCRIPTION OF SYMBOLS 1 Showcase 2 Casing 2a Open / close door 3 Stand 4 Display shelf 5 Front panel 6 Condenser 7 Inlet 8 Air blower fan 9 Air filter 9a Filter body 9b Lattice frame 10 Air filter cleaning device 10a Cleaning device main body 11 Rotating cleaning body 11a Rotating shaft 11b Brush body 12 Dust box 12a Inner wall 12b Bottom surface 13a Pinion gear 13b Drive gear A
13c Drive gear B
14 Lid 15 Dust remover 16, 16a, 16b, 16c, 16d, 16e Partition plate

Claims (6)

An air filter,
A rotary cleaning body comprising a rotary shaft and a brush body;
In an air filter cleaning device having a dust box,
The air filter is installed at a position in contact with the rotary cleaning body,
The rotary cleaning body is installed such that its longitudinal direction coincides with a substantially vertical direction,
The dust box is formed so as to receive dust discharged from the brush body of the rotary cleaning body,
The dust box is provided with a plurality of partition plates on the inner wall,
The air filter cleaning device, wherein the partition plate is installed so as to be inclined downward as it is separated from the rotary cleaning body in order to keep dust away from the rotary cleaning body. The air filter includes a filter body and a lattice frame that divides the filter body into a plurality of parts,
The air filter cleaning device according to claim 1, wherein an end of the partition plate on the side of the rotary cleaning body is formed on an extension line of the lattice frame of the air filter.   The air filter cleaning device according to claim 1 or 2, wherein the partition plate is in contact with a brush body of the rotary cleaning body.   The air filter cleaning device according to any one of claims 1 to 3, wherein the partition plate is formed such that a cross section in the thickness direction of the end portion on the rotary cleaning body side has an acute angle. A condenser provided in the gantry, a blower fan for sending air to the condenser,
A showcase comprising the air filter cleaning device according to any one of claims 1 to 4 disposed on a front surface of the condenser. A main body having an air passage that guides air sucked from an air inlet to an air outlet, a blower fan, and the air filter cleaning device according to any one of claims 1 to 4 are provided in the main body. An air conditioner characterized by that.

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