JP2008032351A - Indoor unit of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an indoor unit of an air conditioner simplified in the structure of an air filter cleaning device, reduced in size, and inexpensive. <P>SOLUTION: This indoor unit of an air conditioner includes: a cleaning unit disposed to move on the surface of an air filter; and an exhaust unit suitably communicated with the cleaning unit and adapted to discharge dust collected in the cleaning unit to the outside of the unit. The cleaning unit is provided with a dust removing part including a dust removing member for the air filter and a dust storing part. The exhaust unit is provided with an exhaust duct which connects an exhaust fan to the dust storing part when it is communicated with the cleaning unit, and discharges the dust collected in the dust storing part together with air blown off from the exhaust fan to the outside of the unit. <P>COPYRIGHT: (C)2008,JPO&INPIT

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, and an object thereof is to provide a small and inexpensive indoor unit of an air conditioner in which the structure of an air filter cleaning device is simplified.

  In order to achieve the above-described object, an indoor unit of an air conditioner according to the present invention is an indoor unit of an air conditioner in which an air filter, a heat exchanger, and a blower are arranged in an air passage that communicates an air inlet and an outlet. An air filter cleaning device that cleans the air filter, the air filter cleaning device communicating with the cleaning unit as appropriate, and a cleaning unit that is movably disposed on the surface of the air filter. An exhaust unit that discharges the collected dust to the outside of the machine, and the cleaning unit communicates with a dust removing unit including a dust removing member of the air filter, adjacent to the dust removing unit, and has dust on one end side. An exhaust air intake port, and a dust accommodating portion provided with a dust discharge exhaust port on the other end side, and the exhaust unit is disposed on one end side portion of the indoor unit main body, and when communicating with the cleaning unit, the dust unit An exhaust fan in communication with the air inlet for output, communicates with the dust discharge outlet, an exhaust duct for discharging the dust collected in the dust receiving portion to the outside of the machine together with the air blown out from the exhaust fan.

  According to the air conditioner indoor unit of the present invention, the filter cleaning structure is simplified, and a small and inexpensive air conditioner indoor unit 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 main body 2, The front part inlet 2a is opened by the front part at this main body 2. As shown in FIG. The upper suction port 2b is opened in the upper surface portion, and the blower outlet 2c is opened in the lower portion.

  An air filter 4, a heat exchanger 5, and a 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 includes a filter vertical portion 41 and a filter horizontal portion 42 formed in an L shape when viewed from the side, and the filter vertical portion 41 is a front side heat exchange that forms part of the front suction port 2 a and the heat exchanger 5. The filter horizontal portion 42 is arranged between the upper suction port 2b and the heat exchanger 5 to remove dust contained in the conditioned air sucked from the front suction port 2a. It is arranged between the rear side heat exchangers 5b constituting a part, and removes dust contained in the conditioned air sucked from the upper suction port 2b.

  Further, a filter cleaning device 7 is arranged opposite to the air filter 4, and this filter cleaning device 7 is separated from the cleaning unit 8, the moving unit 9 for moving the cleaning unit 8 as appropriate, and the cleaning unit 8 as appropriate. The exhaust unit 10 which contacts is provided.

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

As shown in FIGS. 3 and 4, the cleaning unit vertical section 81 includes a long rectangular parallelepiped hollow vertical part cylinder 81a, a brush opening 81b ₁ is provided in the vertical part cylinder 81a, the brush 81c a dust removal unit 81b for housing, communicates adjacent to the dust removal unit 81b, is provided an inlet 81d ₁ preparative dust discharging air is provided with dust accommodating portion 81d for accommodating the dust, further, the vertical part cylinder In 81a, a brush 81c as a dust scraper as dust removing means is rotatably supported along a longitudinal direction between a bearing member 81e and a rotary motor 81g accommodated in a motor box 81f.

Further, as shown in FIGS. 3 and 5, like the cleaning unit vertical portion 81, the cleaning unit horizontal portion 82 includes a horizontal hollow cylindrical portion 82a having a rectangular parallelepiped shape. opening 82b ₁ is provided brush, a dust removal unit 82b for accommodating the brush 82c, communicates adjacent to the dust removal unit 82b, is provided dust discharge outlet 82d _1, dust storage portion for storing dust 82d is provided, and the horizontal cylinder 82a is provided with a space serving as a dust accommodating portion 8d, and a brush 82c as a dust scraper as a dust removing means can be rotated along the horizontal direction. Are supported between a bearing member 82e and a rotary motor 82g accommodated in the horizontal cylinder 82a.

  Further, as shown in FIG. 2, the moving unit 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 the screw member 9c that is attached to the bottom surface of the motor box 81f of the vertical cylinder 81a and screwed into the ball screw 9a, and the other end is attached to the end of the horizontal cylinder 82a. performing guide pin 9d provided on the parts guide channel member 9b guide groove 9b ₁ slidably groove engagement with the of.

  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 rotating motor 9f attached to the main body constituting member 2d. By rotating, the ball screw 9a is rotated, and the cleaning unit 8 can be moved horizontally through a screw member 9c screwed into the ball screw 9a.

One end of the main body 2, that is, the bearing member 9e side, the exhaust unit 10 is disposed, the exhaust unit 10 communicating with the communication time, the inlet 81d ₁ intake air dust emissions of dust accommodating portion 81d of the cleaning unit 8 exhaust and fan 10a, made from an exhaust duct 10b communicating with the dust discharge outlet 82d ₁ of the dust receiving portion 82d, further, when communication between the cleaning unit 8, is interposed between the exhaust unit 10 and the cleaning unit 8, the cleaning An L-shaped positioning plate 11 that restricts the movement of the unit 8 and has a rising edge 11a is provided. Therefore, communication between the exhaust fan 10a and the inlet 81d ₁ intake air dust discharged through the vent hole 11b bored in the positioning plate 11, the communication between the dust discharge outlet 82d ₁ to the exhaust duct 10b, the positioning plate 11 is performed through a vent hole 11c that is drilled in 11 and to which an exhaust duct 10b is attached.

  It is preferable that the exhaust fan and the exhaust duct are also used as a ventilation fan and an exhaust duct for exchanging indoor air used during the ventilation mode operation of the air conditioner.

The filter cleaning device 7 is structured as described above, and the cleaning unit 8 waits at a standby position p in front of the electrical component storage box 12 indicated by a dotted line in FIG. 2 when dust removal is not in operation, as shown in FIG. to, during dust removal operation, the cleaning unit 8 is in close contact with the exhaust unit 10 reaches the exhaust unit 10, the vent holes 11b, through 11c, communication between the inlet 81d ₁ intake air dust discharge exhaust fan 10a and the dust discharge use an air outlet 82d ₁ and the exhaust duct 10b communicates.

  In the figure, reference numeral 2f denotes a louver, and reference numeral 13 denotes a wiring wound freely in a stretchable manner.

  Next, the function of the 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 ventilation path 3. The air is conditioned by the heat exchanger 5 and blown out from the outlet 2c via the blower 6.

  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 rotating motor 81g is rotated to rotate the brush 81c, and as shown in FIG. 4, the removal of dust from the filter vertical portion 41 is started by the rotating brush 81c, and the rotating motor 82g is rotated, as shown in FIG. Thus, the removal of dust from the filter horizontal portion 42 is started by the rotating brush 82c. At the same time, the screw rotation motor 9f is rotated to rotate the ball screw 9a, and the cleaning unit 8 is horizontally moved toward the exhaust unit 10 via the screw member 9c to clean the air filter 4.

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

When the cleaning unit 8 continues to move horizontally and the cleaning unit 8 reaches the exhaust unit 10 and comes into close contact with the exhaust unit 10 via the positioning plate 11, the dust discharge air intake 81d ₁ is provided via the vent holes 11b and 11c. an exhaust communicating and the dust discharge outlet 82d ₁ exhaust duct 10b of the fan 10a are communicated, by an air flow generated by the exhaust fan 10a, the dust accumulated dust containing portion 81d, the 82d, the outdoor via the exhaust duct 10b To be discharged.

  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 filter 4, ventilation resistance is not achieved and ventilation efficiency can be improved.

  By the dust removing operation as described above, the dust accumulated in the filter 4 is removed and automatically cleaned, and the air conditioning capability of the air conditioner is maintained.

  In addition, scraping with a brush and then exhausting at once, the exhaust operation time is short and noise can be reduced.

  Furthermore, since dust removed from the filter 4 does not pass through the exhaust fan 10a, dust does not adhere to the exhaust fan 10a.

  Further, since the filter cleaning device 7 includes a cleaning unit 8 and an exhaust unit 10 provided separately from the cleaning unit 8, both the units 8 and 10 do not always need to communicate with each other. The space for arranging the ducts to be connected is not required, and the main body itself can be made compact, and the main body, which is a basic component of the air conditioner, can be installed in an air conditioner that does not have a filter cleaning function. Can be shared with the main unit.

Furthermore, since the communicating exhaust duct 10b and dust discharge outlet 82d _1, the air blown in the exhaust fan 10a, the dust collected in the cleaning unit 8 can be discharged extrusion with air, to efficiently exhaust duct 10b .

  According to the indoor unit of the air conditioner of the present embodiment, the structure of the filter cleaning device is simplified, and a small and inexpensive air conditioner indoor unit is realized.

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

  This 2nd Embodiment provides the partition member which opens and closes appropriately the communication part provided between the dust removal part and dust storage part of 1st Embodiment.

  For example, as shown in FIG. 7, the indoor unit of the air conditioner of the second embodiment includes a cleaning unit 8, and the cleaning unit vertical portion 81 of the cleaning unit 8 accommodates a brush 81c as a dust removing member. A dust removing portion 81b is provided, and a partition plate 81i that is rotated by a motor or a solenoid is provided in the communicating portion 81h of the dust removing portion 81b and the dust accommodating portion 81d that communicates adjacent to the dust removing portion 81b.

  Since the other configuration is not different from the cleaning unit 8 shown in FIG.

  Thus, when dust is discharged by the exhaust unit 10, the communication portion between the dust storage portion 81d and the dust removal portion 81b is closed by the partition plate 81i, thereby preventing air leakage to the dust removal portion 81b and efficiently removing the dust outdoors. Can be discharged.

  Moreover, the indoor unit of the air conditioner of 3rd Embodiment of this invention is demonstrated.

In the third embodiment, the positioning plate of the first embodiment is provided with a shielding member that closes the brush openings 81b ₁ and 82b ₁ when the cleaning unit 8 and the exhaust unit communicate with each other.

For example, as shown in FIG. 8, the L-shaped positioning plate 11 </ b> A provided in the indoor unit of the air conditioner according to the third embodiment of the present invention has a cleaning unit vertical portion when the cleaning unit 8 and the exhaust unit 10 communicate with each other. 81 and a shielding member for closing the brush openings 81b ₁ and 82b ₁ of the horizontal portion 82, for example, a shielding plate portion 11p, are provided. As shown in FIG. 9, the brush opening 81b ₁ and the cleaning unit of the cleaning unit vertical portion 81 are provided. closing the brush opening 82b ₁ of the horizontal portion 82 in the shielding plate portion 11p.

Thereby, since dust can be captured by moving the cleaning unit 8 without moving the filter 41, space efficiency is high, a large-scale mechanism is not required, and reliability is improved. Further, by closing the brush openings 81b ₁ and 82b ₁ , it is possible to prevent air from leaking from the dust removing portion side and efficiently discharge the dust to the outside.

The longitudinal cross-sectional view of the indoor unit of the air conditioner of 1st Embodiment of this invention. The perspective view which notches and shows a part of main body of the indoor unit of the air conditioner of 1st Embodiment of this invention. The perspective view which notches and shows a part of cleaning unit used for the indoor unit of the air conditioner of 1st Embodiment of this invention. Sectional drawing which follows the AA line of FIG. Sectional drawing which follows the BB line of FIG. The perspective view at the time of the dust discharge | emission of the cleaning unit used for the air conditioner of 1st Embodiment of this invention. The cross-sectional view of the cleaning unit of the indoor unit of the air conditioner of the second embodiment of the present invention. The perspective view of the positioning plate used for the indoor unit of the air conditioner of 3rd Embodiment of this invention. The cross-sectional view which shows the use condition of the positioning plate used for the indoor unit of the air conditioner of 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Indoor unit of air conditioner, 2 ... Main body, 4 ... Air filter, 41 ... Filter vertical part, 42 ... Filter horizontal part, 5 ... Heat exchanger, 5a ... Front side heat exchanger, 6 ... Blower, 7 ... Filter cleaning device, 8 ... cleaning unit, 81 ... cleaning unit vertical part, 81a ... vertical part cylinder, 81b ... dust removing part, 81b ₁ ... brush opening, 81c ... brush, 81d ... dust storing part, 81d ₁ ... dust Air outlet for discharge, 82 ... Cleaning unit horizontal part, 82a ... Horizontal part cylinder, 82b ... Dust removing part, 82b ₁ ... Brush opening, 82c ... Brush, 82d ... Dust container, 82d ₁ ... Exhaust for dust discharge Mouth, 9 ... moving unit, 10 ... exhaust unit, 10a ... exhaust fan, 10b ... exhaust duct, 11 ... positioning plate, 11a ... rising, 11b ... vent hole, 11c ... vent hole.

Claims (5)

In an indoor unit of an air conditioner in which an air filter, a heat exchanger, and a blower are arranged in an air passage that communicates an air inlet and an air outlet,
An air filter cleaning device for cleaning the air filter;
The air filter cleaning device includes a cleaning unit that is movably disposed on the surface of the air filter, and an exhaust unit that communicates with the cleaning unit as appropriate and discharges dust collected in the cleaning unit to the outside.
The cleaning unit is in communication with a dust removing portion including a dust removing member of the air filter, adjacent to the dust removing portion, and has a dust discharging air inlet on one end side and a dust discharging exhaust port on the other end side. Provided with a dust container,
The exhaust unit is disposed on one end side of the indoor unit main body, and communicates with the dust discharge air intake and the dust discharge exhaust port when communicating with the cleaning unit, and the dust discharge exhaust port. An indoor unit for an air conditioner, comprising an exhaust duct for discharging dust collected in a storage unit to the outside of the apparatus together with air blown from the exhaust fan. The indoor unit of an air conditioner according to claim 1, wherein the cleaning unit includes a partition member that appropriately opens and closes a communication portion provided between the dust removing portion and the dust accommodating portion. 3. The air conditioner according to claim 1, wherein the dust removing member is a dust scraping brush that rotates by driving a motor, and the cleaning unit is moved while rotating the brush during filter cleaning. 4. Indoor unit. The indoor unit of an air conditioner according to any one of claims 1 to 3, wherein a shielding member that closes a brush opening of the cleaning unit is provided when the cleaning unit and the exhaust unit communicate with each other. The said shielding member is provided with the shielding board part which obstruct | occludes the opening for brushes of the said cleaning unit in the positioning board interposed between the said cleaning unit and the said exhaust unit at the time of communication of a cleaning unit and an exhaust unit. 4. An indoor unit for an air conditioner according to 4.

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