JP2020000987A - Filter cleaning unit and air conditioner - Google Patents

Abstract

To provide a filter cleaning unit, which can clean a comb part for scooping down dust adhering to a brush, at a position at which the part is brought down, and eliminate the necessity of high-place work for cleaning the comb part.SOLUTION: A filter cleaning unit comprises: a brush fixing part which stores a brush arranged in one direction of a filter; a driving mechanism which moves the brush fixing part in a direction perpendicular to the one direction and along a surface of the filter; a collection box part 38, installed in a suction grille provided below the brush, which is moved together with the brush fixing part by the driving mechanism and collects dust removed by the brush; and a comb part 41, provided at an upper part of the collection box part 38, which has a comb 44 protruding toward the brush.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a filter cleaning unit and an air conditioner.

  Some indoor units of the ceiling-embedded air conditioner include a filter cleaning unit that uses a brush to clean dust adhered to a filter installed at a suction port. The brush has a length equal to the width of the filter, and is moved along one direction of the filter by a driving mechanism having a motor.

  Patent Literature 1 below discloses a technology in which a cleaning unit includes a brush unit that moves along a filter to clean the filter, and a driving unit that drives the brush unit, and the cleaning unit removes dust attached to the filter. It has been disclosed.

JP-A-2006-8754

  Dust removed from the filter by the brush is collected in a collection box installed below the brush. In addition to the dust that falls directly from the filter into the collection box, as well as dust that remains on the brush, there is a comb installed in the filter cleaning unit that comes into contact with the brush and scrapes off the dust attached to the brush. I have.

  Conventionally, in a filter cleaning unit, a comb is installed in a filter cleaning unit of a panel unit attached to an indoor unit, and in order to clean the comb, it is necessary to clean an indoor unit or a panel unit installed on a ceiling. Similarly, work at height is required.

  The present invention has been made in view of such circumstances, and it is possible to clean a comb portion that scrapes off dust attached to a brush at a position where the comb portion is lowered. It is an object to provide a possible filter cleaning unit and an air conditioner.

In order to solve the above problems, a filter cleaning unit and an air conditioner of the present invention employ the following means.
That is, the filter cleaning unit according to the present invention includes a brush fixing portion for accommodating a brush installed along one direction of the filter, and the brush fixing portion being perpendicular to the one direction and on a surface of the filter. A drive mechanism for moving along, a collection box section which is installed on a suction grill provided below the brush, moves together with the brush fixing section by the drive mechanism, and collects dust removed by the brush, And a comb portion having a comb protruding toward the brush and installed on an upper portion of the collection box portion.

  According to this configuration, the collection box is installed on the suction grille, and the comb is installed above the collection box. Therefore, by lowering the suction grill, the comb is moved downward together with the collection box arranged on the suction grille. You can take it down. As a result, since the comb portion can be cleaned not at the ceiling but at the position where the comb portion is lowered, it is not necessary to work at a high place for cleaning the comb portion.

In the above invention, the comb portion may be configured to be detachable from the collection box portion.
According to this configuration, the comb section can be removed from the collection box section, and the comb section can be cleaned separately from the collection box section.

  An air conditioner according to the present invention includes the above-described filter cleaning unit.

  ADVANTAGE OF THE INVENTION According to this invention, the comb part which scrapes off the dust adhering to a brush can be cleaned at the position which fell down, and a high place operation | work regarding the cleaning of a comb part can be made unnecessary.

It is a longitudinal section showing an indoor unit of an embedded ceiling type air conditioner concerning one embodiment of the present invention. It is a perspective view showing the indoor unit of the ceiling embedded type air conditioner concerning one embodiment of the present invention. It is the perspective view which shows the filter cleaning unit which concerns on one Embodiment of this invention, and is the figure seen from the lower surface side. It is a perspective view showing a suction grille and a recovery box part concerning one embodiment of the present invention. It is a longitudinal section showing the recovery box part concerning one embodiment of the present invention. It is a longitudinal section showing the recovery box part concerning one embodiment of the present invention.

Hereinafter, an in-ceiling type air conditioner according to an embodiment of the present invention will be described with reference to the drawings.
The ceiling-embedded air conditioner (hereinafter, referred to as “air conditioner”) includes an indoor unit 1, an outdoor unit (not shown), and a refrigerant pipe (not shown) connecting the indoor unit 1 and the outdoor unit. And so on.
The indoor unit 1 is installed with the case body 2 embedded in the ceiling. As shown in FIG. 1, a heat exchanger 7, a drain pan 10, a motor 5, a blower 6, a bell mouth 12, and the like are built in the case body 2, and a lower part of the case body 2 is exposed to a ceiling surface. The panel section 8 is mounted.

  As shown in FIGS. 1 and 2, a suction port 3 is formed at the center of the lower surface of the indoor unit 1, and is long in one direction along the outer peripheral portion of the lower surface of the indoor unit 1 at a position adjacent to the suction port 3. An outlet 4 is formed. A suction grille 11 and a filter 13 are installed above the suction grille 11 at the suction opening 3. The drain pan 10 is provided below the heat exchanger 7 and receives drain water dropped from the heat exchanger 7. The bellmouth 12 is provided below the drain pan 10.

  When the air conditioner operates, refrigerant from an outdoor unit (not shown) circulates through the heat exchanger 7, and the blower 6 is driven by the motor 5. By driving the blower 6, room air is guided from the suction port 3 through the suction grill 11 and the filter 13, guided by the bell mouth 12, and sucked into the blower 6. The air blown out from the blower 6 is cooled or heated by passing through the heat exchanger 7 and then blown out from the blowout port 4 into the room.

  The louver 14 is long in one direction according to the shape of the outlet 4, and the louver 14 rotates around an axis parallel to the longitudinal direction. As a result, when the direction of the louver 14 is changed, the airflow blown out from the blowout port 4 becomes upward or downward.

  The filter 13 removes dust and the like contained in the sucked air. The filter 13 has a square shape like the suction port 3, and is arranged near the center of the suction port 3. Further, wires 15 for raising and lowering the suction grill 11 are arranged at four corners of the frame of the suction grill 11.

  The indoor unit 1 according to the present embodiment includes a filter cleaning unit 16. As shown in FIG. 2, the filter cleaning unit 16 is provided on the panel section 8 on the lower surface of the filter 13, and has a brush 17 that is equal to or longer than one side of the filter 13 in one direction. The brush 17 of the filter cleaning unit 16 moves from one side of the filter 13 to the other side thereof while contacting the surface of the filter 13, thereby removing dust adhering to the filter 13. The filter cleaning unit 16 starts operation based on a control signal related to operation control.

  As shown in FIGS. 2 and 3, the filter cleaning unit 16 includes a frame unit 9 detachably installed on the panel unit 8, a brush 17 installed on the frame unit 9, a brush fixing unit 21, a motor 24, and the like. Prepare.

  As shown in FIGS. 2 to 4, the frame portion 9 has a square shape like the suction port 3, and is disposed near the center of the suction port 3. A filter 13 is provided on the frame unit 9, and the frame unit 9 can be attached to or detached from the panel unit 8.

  The brush 17 has a shaft member that is long in one direction, and a large number of hairs are arranged on the outer peripheral surface of the shaft member from one end to the other end in the axial direction. The brush 17 is provided with a brush rotation gear (not shown) that meshes with the pinion gear at each end. The brush 17 is supported at both ends by the brush fixing portions 21.

  As shown in FIG. 3, the brush fixing part 21 is a member that is long in a direction parallel to the axial direction of the brush 17 and accommodates the brush 17 inside. The brush fixing portion 21 has a shape surrounding the brush 17 and exposes the brush 17 on the filter 13 side. A total of two pinion gears (not shown) are rotatably installed at both ends in the longitudinal direction of the brush fixing portion 21. The brush fixing part 21 is supported by a rack gear 22 via a pinion gear. As the brush fixing portion 21 moves along the rack gear 22, the brush fixing portion 21 and the brush 17 move along the surface of the filter 13 from one side of the filter 13 to the other side.

  The brush fixing portion 21 is supported by the pinion gear and the rack gear 22 on both sides of the filter 13 in one direction, so that the brush fixing portion 21 and the brush 17 move reliably.

  The pinion gears are respectively installed at both ends of the brush fixing part 21. The pinion gear meshes with the rack gear 22. When the brush fixing portion 21 moves, the pinion gear moves on the rack gear 22 and is driven to rotate by the force transmitted from the rack gear 22. The rack gear 22 is installed outside the filter 13 such that the axial direction is perpendicular to the axial direction of the brush 17. The length of the rack gear 22 is equal to or longer than the length of one side of the filter 13.

  The brush rotation gear is provided one by one corresponding to each pinion gear, and meshes with the pinion gear. When the pinion gear rotates, the brush rotation gear is driven to rotate by the force transmitted from the pinion gear. As a result, the brush 17 installed on the brush rotation gear rotates, and the brush 17 rotates with the movement of the brush 17.

  Further, the pinion gear is a member that is not connected to the motor 24 and operates in a driven manner. In the present embodiment, since the pinion gear is provided on the brush fixing portion 21, unlike the Patent Document 1, a propulsion shaft connecting the two pinion gears is unnecessary.

  As shown in FIG. 3, only one set of the driving mechanism including the motor 24, the shaft 25, the nut 26, and the like may be provided along one side of the filter 13.

  The motor 24 is fixedly installed on the frame 9 of the filter cleaning unit 16. The motor 24 is connected to a shaft 25, and when the motor 24 is driven, the shaft 25 rotates around the axis. The shaft 25 is a shaft member that is long in one direction. An external thread is formed on the outer peripheral surface of the shaft member, and a nut 26 is engaged with the shaft member. The shaft 25 is installed so that the axial direction is perpendicular to the axial direction of the brush 17, that is, in a direction parallel to the rack gear 22. The shaft 25 is equal to or longer than one side of the filter 13 in one direction.

  The nut 26 has an internal thread formed on the inner peripheral surface thereof so as to mesh with the external thread of the shaft 25. The nut 26 is connected to the brush fixing part 21 so as not to rotate around the axis of the shaft 25. The nut 26 is not fixed to the brush fixing part 21, but the nut 26 is connected to the brush fixing part 21 so that the brush fixing part 21 can be pushed. Thus, the rotation of the shaft 25 causes the nut 26 to move, and the nut 26 pushes the brush fixing portion 21 to move along the axial direction of the shaft 25. By changing the rotation direction of the shaft 25, the traveling direction of the nut 26 and the brush fixing portion 21 can be changed.

  In the example described above, an example is described in which the male screw is formed on the shaft 25 and the female screw is formed on the nut 26, and the present invention is not limited to this example. For example, the shaft 25 and the nut 26 may be configured such that a combination of the shaft 25 and the nut 26 provides a ball screw mechanism.

  In this embodiment, only one motor 24 needs to be installed, and the brush 17 can be moved with a simple structure.

Next, the collection box section 38 will be described with reference to FIGS.
The collection box section 38 is disposed on the surface of the suction grill 11 on the filter 13 side, and is connectable to the brush fixing section 21 located above the collection box section 38. The collection box 38 is a member that is long in a direction parallel to the axial direction of the brush 17. As shown in FIGS. 4 to 6, the collection box section 38 includes a collection box 39, a support section 40, a comb section 41, and the like.

  When the brush 17 moves and cleans the filter 13, the collection box section 38 is connected to the brush fixing section 21 and moves together with the brush fixing section 21.

  The collection box 39 is a box in which the dust removed by the brush 17 is stored, has a length equal to or longer than the axial length of the brush 17, and has a width longer than the diameter of the brush 17. . The collection box 39 is installed between the support part 40 and the suction grill 11.

  The support section 40 is installed above the collection box 39. The support portion 40 has a rectangular shape that is long in a direction parallel to the axial direction of the brush 17, and has a frame installed along the edge of the opening of the collection box 39. Both ends in the longitudinal direction of the support portion 40 are slidably connected to rails 43 provided on the suction grill 11. Thereby, the collection box 39 is supported by the suction grill 11 via the support portion 40.

  With the support part 40 still connected to the rail 43, the collection box 39 can enter and exit between the support part 40 and the suction grill 11 in a direction parallel to the in-plane direction of the suction grill 11.

  The comb part 41 is installed on the upper part of the support part 40 and is detachable from the support part 40. The comb portion 41 has a rectangular shape that is long in a direction parallel to the axial direction of the brush 17, and has a frame installed along the edge of the support portion 40. Note that locking portions 54 and 55 may be provided on the support portion 40 and the comb portion 41 so that the comb portion 41 does not move with respect to the support portion 40.

  A long comb 44 is formed at the center in the width direction of the comb portion 41 in a direction parallel to the axial direction of the brush 17. The comb 44 has a comb tip protruding upward from the brush 17, that is, upward. The comb 44 contacts the brush 17 in a state where the brush fixing part 21 and the collection box part 38 are connected. When the brush 17 cleans the filter 13, the comb 44 comes into contact with the brush 17 and scrapes off dust attached to the brush 17. The scraped dust is collected in the collection box 39.

  As shown in FIGS. 5 and 6, in the filter cleaning unit 16 according to the present embodiment, the comb portion 41 is installed on the suction grill 11 side. Therefore, as shown in FIG. 2, the comb portion 41 can be cleaned together with the collection box 39 by lowering the suction grill 11. Therefore, unlike the case where the comb is installed on the case body 2 side of the indoor unit, when cleaning the comb 44, work at a high place is not required.

1: indoor unit 2: case body 3: suction port 4: outlet 8: panel section 9: frame section 11: suction grill 13: filter 14: louver 15: wire 16: filter cleaning unit 17: brush 21: brush fixing section 22: Rack gear 24: Motor 25: Shaft 26: Nut 38: Collection box 39: Collection box 40: Supporting part 41: Comb part 43: Rail 44: Comb 54: Locking part 55: Locking part

Claims (3)

A brush fixing portion for accommodating a brush installed along one direction of the filter,
A drive mechanism for moving the brush fixing portion in a direction perpendicular to the one direction and along the surface of the filter,
A collection box unit that is installed on a suction grill provided below the brush, moves together with the brush fixing unit by the driving mechanism, and collects dust removed by the brush;
A comb portion having a comb that is installed on the upper portion of the collection box portion and protrudes toward the brush,
A filter cleaning unit comprising:   The filter cleaning unit according to claim 1, wherein the comb portion is configured to be detachable from the collection box portion. An air conditioner comprising the filter cleaning unit according to claim 1.

Images