JP2010197014A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner of high usability and reliability, having a filter automatic cleaning unit from which a user can easily demount a dust collecting box, and on which the user can surely mount the dust collecting box. <P>SOLUTION: In this air conditioner, the cleaning unit includes a supporting body 11 and a dust collecting box assembly, a dust scraping-off section 25 of the dust collecting box assembly has a shaft 8 engaged with a mounting hole 18 of the supporting body 11 on its one end in the horizontal direction, and has a stopper 7 engaged with a fixing hole 10 of the supporting body 11 and horizontally movable forward and backward by a spring 5 on the other end in the horizontal direction. A chamfer section 6 kept into contact with a contact section of the supporting body 11 is formed on a face on a supporting body 11 side, of a tip of the stopper 7, so that the chamfer section 6 is brought into contact with the contact section of the supporting body 11 by pressing the stopper 7 to the supporting body 11 side, thus the spring 5 is contracted, and the stopper 7 is moved inward, and then engaged with the fixing hole 10 of the supporting body 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an air conditioner having an automatic filter cleaning function.

  In an air conditioner, indoor air sucked by a blower fan is heated or cooled by passing through a heat exchanger and returned to the room, but dust floating in the air contaminates the heat exchanger. In order to prevent this, a filter is installed on the air inflow side of the heat exchanger. When dust adheres to the filter and becomes clogged and the ventilation resistance of the filter increases, the air conditioning capability of the air conditioner decreases and the power consumption increases. In order to eliminate such inconvenience, an air conditioner having an automatic filter cleaning function is well known.

  For example, an air conditioner including a cleaning unit including a filter, a scraping brush, and a dust collection box has been proposed (see, for example, Patent Document 1).

JP 2008-215709 A

  In the air conditioner described in Patent Document 1, the dust removed from the filter is stored in a dust collection box, and the dust is removed by removing the dust collection box. However, although there is a description about the opening / closing mechanism of the dust collection box removed from the main body, there is no mention of a method for removing the dust collection box from the main body.

  In conventional air conditioners, it is often difficult to understand how to remove the dust collection box. In addition, troublesome work may be required when removing the dust collection box. Furthermore, it is often difficult to remove the dust collection box stably. For example, if the dust collection box is suddenly removed or the dust collection box jumps out and falls off, the dust in the dust collection box May scatter to the surroundings, causing the inside of the main body or the interior to become dirty.

  The present invention was made to solve the above-described problems, and includes a filter automatic cleaning unit that allows a user to easily remove the dust collection box from the cleaning unit and to ensure that the mounting is performed. An object is to provide an air conditioner that is easy to use and highly reliable.

An air conditioner according to the present invention is an air conditioner including a cleaning unit for removing dust attached to a filter,
The cleaning unit
A support having a filter rail through which the filter moves;
A dust collection box assembly that is detachably attached to the support and has a dust scraping portion and a dust collection box that is attached below the dust scraping portion, and is attached to the front portion of the air conditioner in the left-right direction; With
The dust scraper has a shaft that engages with the mounting hole of the support at one end in the left-right direction, and a stopper that engages with the fixing hole of the support at the other end in the left-right direction and can be advanced and retracted in the left-right direction by a spring. Have
A chamfered portion that abuts against the abutting portion of the support is formed on the surface on the support side of the tip of the stopper, and when the stopper is pushed toward the support side, the chamfered portion abuts against the abutting portion of the support and the spring contracts The stopper moves inward and then engages with the fixing hole of the support.

  In the air conditioner according to the present invention, when the stopper is pushed to the support side, the chamfered portion formed on the support side surface at the tip of the stopper comes into contact with the contact portion of the support body and the spring contracts, and the stopper , And then engages with the fixing hole of the support, so that the operation of attaching the dust collection box assembly to the support is simple and easy to understand.

FIG. 3 shows the first embodiment and is a perspective view of the air conditioner 100. FIG. FIG. 3 is a diagram showing the first embodiment, and is an exploded perspective view of the air conditioner 100. FIG. FIG. 5 shows the first embodiment and is a front view of the cleaning unit 3. ZZ sectional drawing of FIG. FIG. 5 shows the first embodiment, and is a cross-sectional view showing a state in which the front panel 9 is opened in FIG. 4. FIG. 5 shows the first embodiment, and shows a state in the middle of attaching the dust collection box assembly (right) 2b to the support 11. The elements on larger scale of FIG. FIG. 6 shows the first embodiment, and shows a state where the dust collection box assembly (right) 2b is in contact with the support body 11; The elements on larger scale of FIG. FIG. 5 shows the first embodiment, and shows a state where the dust collection box assembly (right) 2b is fixed to the support body 11; The elements on larger scale of FIG. FIG. 5 shows the first embodiment and is a front view of a part (right side) of the cleaning unit 3. FIG. 5 shows the first embodiment, and is a part (right side) perspective view of the cleaning unit 3. FIG. 5 shows the second embodiment, and is a part (right side) front view of the cleaning unit 3. FIG. 9 shows the second embodiment, and shows a state where the dust collection box assembly (right) 2b is pushed out by the pushing device 13.

Embodiment 1 FIG.
FIGS. 1 to 13 are diagrams showing the first embodiment, FIG. 1 is a perspective view of the air conditioner 100, FIG. 2 is an exploded perspective view of the air conditioner 100, FIG. 3 is a front view of the cleaning unit 3, and FIG. 1 is a cross-sectional view taken along the line ZZ in FIG. 1, FIG. 5 is a cross-sectional view showing a state where the front panel 9 is opened in FIG. 4, and FIG. 6 shows a state in the middle of attaching the dust collection box assembly (right) 2b to the support 11 7 is a partially enlarged view of FIG. 6, FIG. 8 is a view showing a state in which the dust collection box assembly (right) 2b is in contact with the support 11, FIG. 9 is a partially enlarged view of FIG. 8, and FIG. FIG. 11 is a partially enlarged view of FIG. 10, FIG. 12 is a front view of the part (right side) of the cleaning unit 3, and FIG. 13 is the cleaning unit 3. It is a part (right side) perspective view of this.

  The overall configuration of the air conditioner 100 will be described with reference to FIGS. 1 to 5. Here, an indoor unit of a separate air conditioner including an indoor unit and an outdoor unit is referred to as an air conditioner 100.

  As shown in FIG. 1, in the air conditioner 100, a substantially box-shaped outline is formed by the main unit 16, the outer case 15, the front panel 9, and the like. A suction port 20 that sucks indoor air is provided in the upper part (top surface) of the air conditioner 100, and a blower outlet 21 that blows conditioned air into the room is formed in the lower part.

  FIG. 2 is an exploded perspective view of the air conditioner 100. The air conditioner 100 includes a main unit 16 mounted with a heat exchanger 30 for exchanging heat between room air and a refrigerant in a refrigeration cycle, a blower 40 (not shown in FIG. 2, see FIG. 4), and filters 1a and 1b. Cleaning unit having a support 11 having a filter rail 17 (not shown in FIG. 2, see FIG. 4), a dust collection box assembly (left) 2a, and a dust collection box assembly (right) 2b. 3. At least an exterior case 15 and a front panel 9 are provided.

  In the claims and the like, the dust collection box assembly (left) 2a and the dust collection box assembly (right) 2b are simply referred to as “dust collection box assembly”.

  The filters 1a and 1b are provided on the left and right sides. The filter 1a is the left side when the air conditioner 100 is viewed from the front, and the filter 1b is the right side.

  The dust collection box assembly (left) 2a removes dust from the filter 1a. The dust collection box assembly (right) 2b removes dust from the filter 1b.

  As shown in FIG. 3, the cleaning unit 3 that automatically cleans the filters 1 a and 1 b has a dust collection box assembly (left) 2 a and a dust collection box assembly (right) 2 b attached to the lower front portion of the support 11.

  FIG. 4 is a ZZ cross-sectional view of FIG. The internal configuration of the air conditioner 100 will be described with reference to FIG. However, since the present embodiment is characterized by the cleaning unit 3 (particularly, the dust collection box assembly (left) 2a and the dust collection box assembly (right) 2b), other configurations will be briefly described.

  The main unit 16 is configured such that the refrigeration cycle is configured with an outdoor unit compressor (not shown) and the like, the indoor air is sucked from the suction port 20, and the conditioned air is blown from the blower outlet 21 into the room. A blower 40 or the like that blows air is mounted.

  The heat exchanger 30 is disposed so as to surround the blower 40 in an inverted V shape. The heat exchanger 30 includes a front upper heat exchanger 30a, a front lower heat exchanger 30b, and a rear heat exchanger 30c.

  The blower outlet 21 located downstream of the blower 40 is provided with a front upper heat exchanger 30a, a front lower heat exchanger 30b, and a rear heat exchanger 30c that control the direction of the conditioned air blown from the blower 21 into the room. It is done. The left / right wind direction control plate 50 controls the wind direction in the left / right direction of the conditioned air blown into the room. The up / down air direction control plate 60 controls the up / down air direction of the conditioned air blown into the room.

  A drain pan 70 that receives condensed water adhering to the heat exchanger 30 is formed below the front lower heat exchanger 30b. The back side of the drain pan 70 is a constituent member of the air path.

  The cleaning unit 3 is provided on the upstream side of the heat exchanger 30. The filter 1b is inserted in the filter rail 17 of the support body 11, and is normally in a position facing the suction port 20 (FIG. 4 is a normal position). When the automatic cleaning by the cleaning unit 3 starts, the filter 1b reciprocates along the filter rail 17 of the support 11.

  Since FIG. 4 shows the dust collection box assembly (right) 2b, the dust collection box assembly (right) 2b will be described below. The dust collection box assembly (left) 2a is the same as the dust collection box assembly (right) 2b except that the left and right lengths are longer than the dust collection box assembly (right) 2b. Except for the length, the dust collection box assembly (left) 2a and the dust collection box assembly (right) 2b are mirror-symmetric.

  The reason why the lengths of the dust collection box assembly (left) 2a and the dust collection box assembly (right) 2b are different are as follows. Since a space for arranging a refrigerant pipe, a drain pipe and the like is required on the right side of the heat exchanger 30, the center of the main unit 16 does not coincide with the center of the heat exchanger 30. Since the infrared sensor 24 (see FIG. 1) is provided at substantially the center of the outer case 15, the dust collection box assembly (left) 2a and the dust collection box assembly (right) 2b are also arranged accordingly. The boundary between the dust collection box assembly (left) 2 a and the dust collection box assembly (right) 2 b substantially coincides with the center of the main unit 16. Accordingly, the dust collection box assembly (left) 2a is longer than the dust collection box assembly (right) 2b.

  The dust collection box assembly (right) 2b is attached to a dust scraping portion 25 having a scraping brush 4, a stopper 7, a protruding portion 14 and the like, and a lower portion of the dust scraping portion 25, and scrapes dust from the filter 1b. And a dust collection box 22 for collecting dust scraped off by the brush 4.

  The scraping brush 4 is attached over substantially the entire length of the dust scraping portion 25 in the left-right direction. Dust adhering to the filter 1b that reciprocates during automatic cleaning is scraped off and dropped into the dust collection box 22 below.

  Although details will be described later, the stopper 7 simply attaches the dust collection box assembly (right) 2b to the support 11 using the expansion and contraction of the spring 5 (FIGS. 6 to 11).

  The role of the protrusion 14 formed on the dust scraping portion 25 is as follows. As shown in FIG. 5, it is assumed that, for example, the dust collection box assembly (right) 2b is attached to the support 11 in a state described later with the front panel 9 opened. However, the attachment may not be sufficient and the dust collection box assembly (right) 2b may not be fixed to the support 11. Even in such a case, the front panel 9 pushes the projection 14 by closing the front panel 9, so that the dust collection box assembly (right) 2 b can be securely fixed to the support 11.

  This embodiment is characterized in a method of attaching the dust collection box assembly (left) 2a and the dust collection box assembly (right) 2b to the support 11.

  With reference to FIGS. 6 to 11, a method of attaching the dust collection box assembly (left) 2a and the dust collection box assembly (right) 2b to the support 11 will be described taking the dust collection box assembly (right) 2b as an example. . The method for attaching the dust collection box assembly (left) 2a to the support 11 is the same.

  6 to 11, the dust collection box 22 of the dust collection box assembly (right) 2b is not visible. Only the dust scraper 25 is visible.

  The dust scraper 25 of the dust collection box assembly (right) 2 b includes a cylindrical shaft 8 that protrudes laterally from an end on the center side of the air conditioner 100.

  The dust scraper 25 of the dust collection box assembly (right) 2b includes a stopper 7 that can be moved back and forth in the left-right direction at the end opposite to the shaft 8. A spring 5 is attached to the stopper 7, and normally no force is applied to the spring 5. In a state where no force is applied to the spring 5, the tip of the stopper 7 protrudes from the right end of the support 11.

  The tip of the stopper 7 is chamfered at the corner on the support 11 side. This is called a chamfered portion 6.

  The stopper 7 is provided with a protruding portion 7a used when the user moves the stopper 7 inward with a finger.

  The material of the stopper 7 uses polyacetal (POM: polyoxymethylene) resin and may contain an antibacterial agent. POM has well-balanced mechanical properties and excellent formability, fatigue resistance, creep resistance, friction and wear properties, and chemical resistance. Widely used in fields such as building materials.

  The material of the dust scraping portion 25 is ABS (acrylonitrile butadiene styrene) resin, which also contains an antibacterial agent.

  A dust scraper 25 of the dust collection box assembly (right) 2b is attached to the support 11 in a mounting hole into which a cylindrical shaft 8 protruding in the lateral direction from the center end of the air conditioner 100 is inserted. 18 is formed on the center side of the air conditioner 100.

  Further, the support 11 is formed with a fixing hole 10 at the end opposite to the attachment hole 18 to which the tip of the stopper 7 is fixed.

  Further, the end portion on the front side (the dust collection box assembly (right) 2 b side) from the fixing hole 10 is a contact portion 11 a that contacts the chamfered portion 6 of the stopper 7. The contact part 11a is configured by a corner part having a substantially square cross section.

  When attaching the dust collection box assembly (right) 2b to the support 11, first, as shown in FIGS. 6 and 7, the center side of the air conditioner 100 of the dust scraper 25 of the dust collection box assembly (right) 2b. A cylindrical shaft 8 protruding in the lateral direction from the end of the support member 11 is inserted into the mounting hole 18 of the support 11. In this state, the stopper 7 on the side opposite to the shaft 8 is separated from the support 11 (on the front side of the support 11).

  Next, with the shaft 8 inserted into the mounting hole 18 of the support 11 as a fulcrum, the stopper 7 side end of the dust scraping portion 25 is pushed toward the support 11. By doing so, as shown in FIGS. 8 and 9, the chamfered portion 6 of the stopper 7 first comes into contact with the contact portion 11 a of the support 11.

  Even after the chamfered portion 6 of the stopper 7 comes into contact with the contact portion 11a of the support 11, if the end portion of the dust scraping portion 25 on the stopper 7 side is pushed toward the support 11 side, a reaction force from the contact portion 11a is generated. It acts on the chamfer 6 at a substantially right angle. Accordingly, there are components of the reaction force in the direction of the stopper 7 and the spring 5, which act on the spring 5. The spring 5 contracts due to the reaction force. Therefore, the stopper 7 moves to the inside of the support 11.

  Furthermore, when the end portion of the dust scraping portion 25 on the stopper 7 side is pushed to the support body 11 side, as shown in FIGS. 10 and 11, when the tip of the stopper 7 reaches the position of the fixing hole 10 of the support body 11, Due to the force acting on the spring, the stopper 7 likes the fixing hole 10, and the dust scraper 25 (dust collection box assembly (right) 2 b) is fixed to the support 11.

  When a person who inserts the dust collection box assembly (right) 2b into the support 11 reaches the position of the fixing hole 10 of the support 11 when the tip of the stopper 7 reaches the position of the fixing hole 10, the stopper 7 is fixed to the fixing hole 10 by the force acting on the spring. You can feel a certain response.

  As already described, even if the dust collection box assembly (right) 2b is not fixed to the support 11 (the tip of the stopper 7 is not inserted into the fixing hole 10 of the support 11), the dust scraping is performed. Since the protruding portion 14 (FIGS. 7, 9, and 11) protruding forward is formed in the vicinity of the stopper 7 of the take-up portion 25, the protruding portion 14 is pushed by closing the front panel 9, and dust is surely collected. The collection box assembly (right) 2 b can be fixed to the support 11.

  With reference to FIGS. 12 and 13, a method for removing the dust collection box assembly (left) 2a and the dust collection box assembly (right) 2b from the support 11 will be described by taking the dust collection box assembly (right) 2b as an example. . The method for removing the dust collection box assembly (left) 2a from the support 11 is the same.

  When removing the dust collection box assembly (right) 2b in order to throw away the dust in the dust collection box 22, a protrusion formed when a person formed on the stopper 7 moves the stopper 7 inward with a finger (see FIG. 12) is moved toward the spring 5 against the elastic force of the spring 5 so that the tip of the stopper 7 is positioned inside the fixing hole 10, and the finger hook portion 23 shown in FIGS. If it pulls forward, the stopper 7 side will remove | deviate from the support body 11 easily. After that, the cylindrical shaft 8 projecting laterally from the end of the dust collecting box assembly (right) 2b of the dust collecting box 25 on the center side of the air conditioner 100 is pulled from the mounting hole 18 of the support 11. If removed, the dust collection box assembly (right) 2b can be removed from the support 11.

  As described above, according to the present embodiment, when attaching the dust collection box assembly (right) 2b to the support 11, first, the air conditioner 100 of the dust scraper 25 of the dust collection box assembly (right) 2b. A cylindrical shaft 8 protruding in the lateral direction from the end of the center side is inserted into the mounting hole 18 of the support 11. Next, the chamfered portion 6 of the stopper 7 is supported by pushing the stopper 7 side end of the dust scraping portion 25 toward the support 11 with the shaft 8 inserted into the mounting hole 18 of the support 11 as a fulcrum. First, it contacts the contact portion 11a of the body 11. Further, when the end portion on the stopper 7 side of the dust scraping portion 25 is pushed to the support body 11 side, the reaction force from the contact portion 11a acts on the chamfered portion 6 at a substantially right angle. A component in the direction of the spring 5 acts on the spring 5, the spring 5 contracts, and the stopper 7 moves to the inside of the support 11. Further, when the end of the dust scraping portion 25 on the stopper 7 side is pushed toward the support 11 and the tip of the stopper 7 reaches the position of the fixing hole 10 of the support 11, the stopper 7 is moved by the force acting on the spring. The dust scraping portion 25 (dust collection box assembly (right) 2b) is securely fixed to the support 11 because it likes the fixing hole 10. A person who inserts the dust collection box assembly (right) 2b into the support 11 fixes the stopper 7 by the force acting on the spring when the tip of the stopper 7 reaches the position of the fixing hole 10 of the support 11. As you enter the hole 10, you can feel a certain response.

  Further, even if the dust collection box assembly (right) 2b is not fixed to the support 11, the protrusion 14 projecting forward is formed in the vicinity of the stopper 7 of the dust scraper 25, so that the front panel By closing 9, the protrusion 14 is pushed, and the dust collection box assembly (right) 2 b can be reliably fixed to the support 11.

  Further, when the dust collection box assembly (right) 2b is removed in order to discard the dust in the dust collection box 22, a protrusion formed when a person formed on the stopper 7 moves the stopper 7 inward with a finger. 7a is moved to the spring 5 side against the elastic force of the spring 5 so that the tip of the stopper 7 is positioned inside the fixing hole 10 and the finger hooking portion 23 is pulled forward, the stopper 7 side can be easily moved. Detach from the support 11. When the shaft 8 is pulled out from the mounting hole 18 of the support 11, the dust collection box assembly (right) 2 b can be removed from the support 11.

Embodiment 2. FIG.
14 and 15 show the second embodiment. FIG. 14 is a front view of a part (right side) of the cleaning unit 3. FIG. 15 shows a state in which the dust collection box assembly (right) 2b is pushed out by the pushing device 13. FIG.

  In this embodiment, an extrusion device 13 is added to the dust collection box 22 of the dust collection box assembly (left) 2a and the dust collection box assembly (right) 2b of the first embodiment. Other configurations are the same as those in the first embodiment, and a description thereof will be omitted.

  The dust collection box assembly (left) 2a and the dust collection box assembly (right) 2b have the same configuration except for the left and right lengths as in the first embodiment. Except for the length, the dust collection box assembly (left) 2a and the dust collection box assembly (right) 2b are mirror-symmetric.

  Hereinafter, the dust collection box assembly (right) 2b will be described as an example. As shown in FIG. 14, in the dust collection box assembly (right) 2b, an extrusion device 13 is provided in a dust collection box 22 (not visible in FIG. 14).

  The extrusion device 13 includes an extrusion device main body 13a and a spring 13b. 14 and 15, the extrusion device 13 is provided on the back surface of the dust collection box 22 of the dust collection box assembly (right) 2b. However, the extrusion device 13 may be provided on the front surface of the support 11.

By providing the extrusion device 13, the following effects can be obtained.
(1) When the dust collection box assembly (right) 2b is attached to the support 11, if the stopper 7 of the dust collection box assembly (right) 2b is not in the fixing hole 10 of the support 11, the dust collection box assembly ( The right) 2b is pushed forward by the extrusion device 13, and it is well known to the user that the dust collection box assembly (right) 2b is not sufficiently fixed to the support 11.
(2) When removing the dust collection box assembly (right) 2b from the support 11, if the protrusion 7a of the stopper 7 is moved in the direction of the arrow in FIG. 14, the push-out device 13 moves the dust collection box assembly (right) 2b. Because it pushes forward, the dust collection box assembly (right) 2b can be easily detached from the support 11. Therefore, the finger hook 23 shown in FIGS. 12 and 13 may not be the second embodiment.

  As described above, according to the present embodiment, the extrusion device 13 including the extrusion device main body 13a and the spring 13b is placed on the back surface of the dust collection box 22 of the dust collection box assembly (right) 2b or the support 11. When the dust collection box assembly (right) 2b is attached to the support 11, the stopper 7 of the dust collection box assembly (right) 2b is not in the fixing hole 10 of the support 11 when the dust collection box assembly (right) 2b is attached to the support 11. The collection box assembly (right) 2b is pushed forward by the push-out device 13, and it is well known to the user that the dust collection box assembly (right) 2b is not sufficiently fixed to the support 11. Further, when removing the dust collection box assembly (right) 2b from the support 11, if the protrusion 7a of the stopper 7 is moved, the push-out device 13 pushes the dust collection box assembly (right) 2b forward. The collection box assembly (right) 2b can be detached from the support 11.

  Although specific embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention.

  For example, the present invention can be applied not only to an air conditioner that sucks room air and performs cooling, heating, and dehumidification, but also to an air conditioner having an air purifying function of capturing dust contained in room air.

  Furthermore, the present invention can be applied not only to an air conditioner that moves a filter to perform automatic cleaning work, but also to an air conditioner that has a structure in which a cleaning brush moves to remove dust attached to a filter.

  The moving method for moving the filter is not limited to a method in which a rack formed on the filter is engaged with a pinion, and the filter is transferred into the cleaning unit by the rotational movement of the pinion. It may be used, or may be a conventional winding method or loop method.

  1a filter, 1b filter, 2a dust collection box assembly (left), 2b dust collection box assembly (right), 3 cleaning unit, 4 scraping brush, 5 spring, 6 chamfered part, 7 stopper, 7a protruding part, 8 shaft, 9 Front panel, 10 Fixing hole, 11 Support, 13 Extruding device, 13a Extruding device main body, 13b Spring, 14 Protruding part, 15 Exterior case, 16 Main unit, 17 Filter rail, 18 Mounting hole, 20 Suction port, 21 Blow Outlet, 22 Dust collection box, 23 Finger holder, 24 Infrared sensor, 25 Dust scraper, 30 Heat exchanger, 30a Front upper heat exchanger, 30b Front lower heat exchanger, 30c Rear heat exchanger, 40 Blower, 50 Left and right air direction control plate, 60 Up and down air direction control plate, 70 Drain pan, 100 Air conditioner.

Claims (3)

An air conditioner equipped with a cleaning unit that removes dust adhering to the filter,
The cleaning unit is
A support having a filter rail through which the filter moves;
A dust collection box that is detachably attached to the support and has a dust scraping portion and a dust collection box that is attached below the dust scraping portion, and is attached to the front portion of the air conditioner in the left-right direction. Assembly, and
The dust scraper has a shaft that engages with the mounting hole of the support at one end in the left-right direction, engages with the fixing hole of the support at the other end in the left-right direction, and advances and retreats in the left-right direction by a spring. Has a possible stopper,
A chamfered portion that abuts against the abutting portion of the support is formed on the surface of the stopper at the tip of the stopper, and the chamfered portion is abutted against the support when the stopper is pushed toward the support. The air conditioner is characterized in that the spring shrinks in contact with the stopper, the stopper moves inward, and then engages with the fixing hole of the support. With a front panel that can be opened and closed on the front of the air conditioner,
2. The air conditioner according to claim 1, wherein the dust collection box assembly is pressed toward the support by closing the front panel with a protruding portion formed on the front surface of the dust scraping portion and protruding forward. Machine.   3. An extrusion device comprising an extrusion device main body and a spring, wherein an extrusion device that presses the dust collection box assembly forward is provided on a back surface of the dust collection box assembly or on a front surface of the support. The air conditioner described.

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