JP2008039293A - Air conditioner indoor unit - Google Patents

Abstract

To provide an air conditioner indoor unit that is an air filter cleaning device that is unitized, is small, and can incorporate the air filter cleaning device without significantly modifying the structure of a conventional indoor unit.
In an indoor unit of the air conditioner, an air filter cleaning device is arranged so as to be movable on the surface of the air filter, and a dust removing unit that houses dust removing means in the case and a proximity to the dust removing unit A cleaning unit provided with a dust storage part for storing the dust removed by the dust removing means, and an exhaust fan for discharging the dust accumulated in the dust storage part to the outside of the room, An exhaust duct arranged on one side is provided, and after the air filter cleaning by the cleaning unit is completed, the cleaning unit and the exhaust duct are communicated with each other, and the dust collected in the dust container by operating the exhaust fan is passed through the exhaust duct. And exhaust the air together with the air.
[Selection] Figure 2

Description

  The present invention relates to an indoor unit of an air conditioner, and more particularly to an indoor unit of an air conditioner having an improved structure of an air filter cleaning device.

  An air filter is installed in the indoor unit of the air conditioner to remove dust from the air to be conditioned, but dust adhering to the air filter is a factor that reduces performance and hinders energy saving. Worsens the air conditioning capability of the air conditioner.

Conventionally, in an indoor unit of an air conditioner equipped with an air filter cleaning device, the air filter cleaning device applies a nozzle to the air filter portion and directly sucks and exhausts, or scrapes with a brush or the like, and then exhausts all at once ( Patent Document 1) and the like, but in any structure, the route from the air filter contact portion to the outdoor exhaust is connected to one, and there is a problem that the indoor unit becomes large by configuring the route, and the space The efficiency of was bad. Moreover, in order to provide the air filter cleaning device, a special structure for securing the space is required, and in order to realize the air filter cleaning structure, it is necessary to secure the space, and the air filter cleaning device is provided. Even for indoor units of air conditioners that are not equipped, a special structure had to be provided in advance, and there were significant restrictions in terms of standardization in terms of design.
JP 2002-340395 A

  The present invention has been made in consideration of the above-described circumstances. The air filter cleaning device is small, and the interior of the air conditioner can be incorporated into the indoor unit main body without significantly modifying the structure of the conventional indoor unit. The purpose is to provide a machine.

  In order to achieve the above-described object, an indoor unit of an air conditioner according to the present invention has an air filter, a heat exchanger, an indoor air circulation blower, and an air passage that communicates an air inlet and an outlet of an indoor unit main body. In an indoor unit of an air conditioner in which an air filter cleaning device that cleans the air filter is disposed, the air filter cleaning device is arranged so as to be movable on the surface of the air filter, and dust that contains dust removing means in the case A removing unit, a dust containing unit disposed in the vicinity of the dust removing unit and containing dust removed by the dust removing unit, and an exhaust fan for discharging the dust accumulated in the dust containing unit to the outside A cleaning unit provided and an exhaust duct arranged on one side of the indoor unit main body, and after the air filter cleaning by the cleaning unit is completed, the cleaning unit and the exhaust duct are connected to operate the exhaust fan. The dust accumulated in the dust containing portion by through the exhaust duct, characterized in that the discharge to the outdoor with air.

  According to the indoor unit of an air conditioner according to the present invention, the air filter cleaning device is small, and the indoor unit of the air conditioner can be incorporated into the indoor unit main body without significantly remodeling the basic structure of the existing indoor unit. Machine can be provided.

  An indoor unit of an air conditioner according to a first embodiment of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a longitudinal sectional view of an indoor unit of an air conditioner according to a first embodiment of the present invention, and FIG. 2 is a cutaway view of a part of the indoor unit body of the air conditioner according to the first embodiment of the present invention. FIG.

  As shown in FIG.1 and FIG.2, the indoor unit 1 of the air conditioner which concerns on this 1st Embodiment has the indoor unit main body 2, and this main body 2 has the front inlet 2a in the front part. The upper suction port 2b is opened on the upper surface, and the blower outlet 2c is opened on the lower portion.

  An air filter 4, a heat exchanger 5, and an indoor air circulation blower 6 are disposed in the air passage 3 that communicates the suction ports 2 a and 2 b with the air outlet 2 c.

  The air filter 4 is made up of an air filter vertical part 41 and an air filter horizontal part 42 formed by metallizing the filter net or depositing metal on the surface and forming an L shape in side view, and the air filter vertical part 41 is a front suction. It is arranged between the mouth 2a and the front side heat exchanger 5a constituting a part of the heat exchanger 5, and removes dust contained in the conditioned air sucked from the front suction port 2a. Dust contained in the conditioned air drawn from the upper suction port 2b is arranged between the rear suction heat exchanger 5b constituting a part of the upper suction port 2a and the upper suction port 2b and a part of the heat exchanger 5. To do.

  Further, an air filter cleaning device 7 is disposed so as to face the air filter 4.

  The air filter cleaning device 7 includes a cleaning unit 8 that removes and collects dust adhering to the air filter surface, a moving mechanism 9 that appropriately moves the cleaning unit 8, and dust that is disposed and removed in the cleaning unit 8. An exhaust fan 10 to be described later for discharging outside and an exhaust duct 11 disposed on one side of the indoor unit main body 2 for discharging dust removed by the cleaning unit 8 to the outdoors.

  The cleaning unit 8 scrapes and removes dust adhering to the air filter 4. The cleaning unit 8 has an L shape like the air filter 4 and scrapes dust adhering to the vertical portion 41 of the air filter. 81 and a horizontal portion 82 of the cleaning unit that scrapes dust adhering to the horizontal portion 42 of the air filter.

  As shown in FIGS. 3 to 5, the cleaning unit 8 is configured by the cases 81 a and 82 a that are formed in a rectangular parallelepiped L-shape in a side view when the outer portion of the vertical portion 81 and the horizontal portion 82 is formed.

The vertical part 81 of the cleaning unit is provided with a brush opening 81b ₁ in the case 81a, and a dust removing part 81b for accommodating a brush 81c as a dust scraper as dust removing means along the longitudinal direction inside the case 81a, communicates adjacent to the dust removal unit 81b, the dust containing portion 81d is provided to form a space for accommodating the dust removed with an inlet 81b ₂ air intake, the brush 81c is for driving the rotatably bearing member 81e A shaft is supported between the motors 81g.

And, in the case 81a of the vertical portion 81, an exhaust blower 10 are provided, the suction port 10a of the air discharge fan 10 communicates with the inlet 81b ₂ air intake, air outlet 10a is open to the dust receiving portion 81b ing.

The horizontal portion 82 of the cleaning unit, the brush opening 82b ₁ is provided in the case 82a, inside the dust removal unit 82b for accommodating the brush 82c as dust scraper is a dust removing means along the longitudinal direction And a dust accommodating portion 82d that communicates adjacent to the dust removing portion 82b and has an air discharge port 82b ₂ to form a space for accommodating the removed dust, and the brush 82c is rotatable with the bearing member 82e. It is pivotally supported between the drive motors 82g.

  As described above, the cleaning unit 8 and the exhaust fan 10 are accommodated in the case vertical portion 81a or the case horizontal portion 82a of the cleaning unit 8 and unitized.

  Further, as shown in FIG. 2, the moving mechanism 9 includes a ball screw 9a attached to the main body constituting member 2d along the longitudinal direction of the main body constituting member 2d, and a guide attached to the main body wall 2e along the longitudinal direction. Attached between the groove members 9b along the air filter 4 so as to be horizontally movable.

In this movable attachment, one end of the cleaning unit 8 is attached to a screw member 9c attached to the bottom surface of the vertical portion 81 and screwed to the ball screw 9a, and the other end is provided with a guide pin 9d provided at the end portion of the horizontal portion 82. slidable in the guide groove 9b ₁ of the guide groove member 9b performed engaged groove engagement.

  Further, one end of the ball screw 9a is pivotally supported by a bearing member 9e attached to the main body constituting member 2d, and the other end is connected to a screw driving motor 9f attached to the main body constituting member 2d. By rotating 9f, the ball screw 9a is rotated, and the cleaning unit 8 can be moved horizontally through a screw member 9c that is screwed into the ball screw 9a.

  An exhaust duct 11 is provided on one end side of the main body 2, that is, on the bearing member 9e side. The exhaust duct 11 is attached to a mounting plate 12 having a duct vent hole 11a on one end side fixed to the main body wall 2e.

The air filter cleaning device 7 has the above-described structure, and the cleaning unit 8 waits at a standby position P in front of the electrical component storage box 13 indicated by a dotted line in FIG. As described above, after the dust removal operation is completed, the cleaning unit 8 reaches one end side and comes into close contact with the mounting plate 12, so that the air discharge port 82 b ₂ and the exhaust duct vent port 11 a of the dust container are interposed via the mounting plate 12. communicating, as shown in FIG. 3, the air taken from the inlet 81b ₂ air intake of dust accommodating section, the exhaust blower 10, the dust containing portion 81d, 82d, air outlet 82b _2, the exhaust duct vent 11a and It is discharged out of the room through the exhaust duct 11.

  In the figure, reference numeral 2f is a louver, and reference numeral 14 is a wire wound around the dust removing means and the air blowing means so as to be freely expanded and contracted.

  Next, the function of the air filter cleaning device 7 will be described.

  As shown in FIGS. 1 and 2, the indoor air sucked into the main body 2 through the front suction port 2 a and the upper suction port 2 b is removed with dust by the air filter 4 disposed in the air passage 3. The air is conditioned by the heat exchanger 5 and blown out from the air outlet 2c through the blower 6 for circulating indoor air.

  When such air conditioning operation is performed for a long time and dust accumulates in the air filter 4, the dust detection sensor detects this or calculates a predetermined operation time, and the cleaning unit 8 in the vicinity of the standby position P The drive motor 81g is rotated to rotate the brush 81c, and as shown in FIG. 5, the removal of dust from the air filter vertical portion 41 is started by the rotating brush 81c, and the drive motor 82g is rotated to rotate the brush 81c. As shown in FIG. 6, the dust removal from the air filter horizontal portion 42 is started by the rotating brush 82c. At the same time, the screw driving motor 9f is rotated to rotate the ball screw 9a, and the cleaning unit 8 is moved horizontally toward the exhaust unit 10 via the screw member 9c to clean the air filter 4.

  The dust removed from the air filter vertical part 41 and the air filter horizontal part 42 by the brush 81c and the brush 82c is temporarily stored in the dust containing part 81d and the dust containing part 82d provided in the vicinity of the brush 81c and the brush 82c.

As shown in FIG. 7, when the cleaning unit 8 continues to move horizontally, comes into contact with the mounting plate 12 and comes into close contact with the cleaning duct vent hole 11a via the mounting plate 12, as shown in FIG. the air taken from the inlet 81b ₂ air intake of dust accommodating section 10 serves the dust receiving portion 81d, the flow inside the 82d, the dust containing portion 81d, while discharging the dust collected in the 82d, the air outlet 82 b ₂ , the exhaust duct vent 11 a and the exhaust duct 11 are discharged outside the room.

  When a series of dust removal operations are completed, the cleaning unit 8 returns to the standby position P and waits for the next dust removal operation. Since the cleaning unit 8 stands by avoiding the front of the air filter 4, ventilation resistance can be improved and ventilation efficiency can be improved.

    According to the indoor unit of the air conditioner according to the first embodiment, the dust accumulated in the air filter 4 is removed and automatically cleaned by the dust removing operation as described above, and the air conditioner capability of the air conditioner. Is maintained. Further, since the exhaust blower 10 is housed in the cleaning unit 8 and unitized, the air filter cleaning device 7 can be miniaturized, and the air filter cleaning device can be reduced without significantly modifying the basic structure of the conventional indoor unit. Seven positions can be incorporated.

  Next, an indoor unit of an air conditioner according to a second embodiment of the present invention will be described.

  In the second embodiment, power is supplied to the dust removing means and the air blowing means provided in the cleaning unit according to the first embodiment by wiring, but power is supplied from a battery or a storage battery provided in the cleaning unit.

  For example, as shown in FIG. 8, the air filter cleaning device 7 in the indoor unit of the air conditioner according to the second embodiment has a motor for driving brushes 81 c and 82 c as dust removing means provided in the cleaning unit 8. Power is supplied to 81g, 82g and the exhaust fan 10 by a battery provided in the cleaning unit 8 or a rechargeable storage battery 14.

  This eliminates the need for power supply wiring, eliminates troubles during movement, and eliminates the need for a space for wiring.

  In the second embodiment, a thin wire may be provided for controlling the cleaning unit 8, or a control transceiver may be provided in the cleaning unit and the indoor unit main body. Also, the storage battery 14 serving as a power source for the cleaning unit 8. Is provided with a charger for charging the storage battery in the main body of the indoor unit, and power is supplied to the cleaning unit 8 side at the standby position P of the air filter cleaning device and / or the attachment plate 12 of the exhaust duct 11 It is made to comprise so that a storage battery may be charged.

  Other configurations are common to the air filter cleaning device shown in FIG.

The longitudinal cross-sectional view of the indoor unit of the air conditioner which concerns on 1st Embodiment in this invention. The perspective view which notches and shows a part of main body of the indoor unit of the air conditioner which concerns on 1st Embodiment in this invention. The perspective view which cuts and shows a part of cleaning unit used for the indoor unit of the air conditioner concerning 1st Embodiment in this invention. The perspective view which cuts and shows a part of cleaning unit used for the indoor unit of the air conditioner concerning 1st Embodiment in this invention. Sectional drawing in alignment with the AA of FIG. Sectional drawing which follows the BB line of FIG. The longitudinal cross-sectional view of the junction part of the cleaning unit and exhaust unit which are used for the indoor unit of the air conditioner which concerns on 1st Embodiment in this invention. The perspective view which notches and shows a part of cleaning unit used for the indoor unit of the air conditioner which concerns on 2nd Embodiment in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Indoor unit of air conditioner, 2 ... Main body, 4 ... Air filter, 41 ... Air filter vertical part, 42 ... Air filter horizontal part, 5 ... Heat exchanger, 5a ... Front side heat exchanger, 6 ... Indoor air Circulating fan, 7 ... Air filter cleaning device, 8 ... Cleaning unit, 81 ... Cleaning unit vertical part, 81a ... Case vertical part, 81b ... Dust removing part, 81b ₁ ... Brush opening, 81c ... Brush, 81d ... Dust storage , 81b ₂ ... air intake port of the dust storage part, 82 ... horizontal part of the cleaning unit, 82a ... horizontal part of the case, 82b ... dust removal part, 82b ₁ ... opening for brush, 82b ₂ ... air discharge port of the dust storage part, 82c ... Brush, 82d ... Dust container, 9 ... Moving mechanism, 10 ... Exhaust fan, 11 ... Exhaust duct, 11a ... Exhaust duct vent, 12 ... Mounting plate.

Claims (2)

In an indoor unit of an air conditioner in which an air filter, a heat exchanger, a blower for circulating indoor air, and an air filter cleaning device for cleaning the air filter are disposed in a blower passage that communicates an air inlet and an outlet of an indoor unit body ,
The air filter cleaning device is arranged to be movable on the surface of the air filter,
In the case, a dust removing unit for storing the dust removing unit, a dust containing unit disposed in the vicinity of the dust removing unit for storing the dust removed by the dust removing unit, and dust accumulated in the dust storing unit A cleaning unit provided with an exhaust fan for exhausting to the outside;
It has an exhaust duct arranged on one side of the indoor unit body,
After the air filter cleaning by the cleaning unit is completed, the cleaning unit communicates with the exhaust duct, and the exhaust fan is operated to discharge the dust accumulated in the dust container together with the air to the outside through the exhaust duct. An air conditioner indoor unit. The indoor unit of an air conditioner according to claim 1, wherein power supply to the dust removing means and the exhaust fan is performed by a battery or a storage battery provided in a case.

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