JP3907675B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner having a function of automatically cleaning an air filter provided in an air suction port of an indoor unit.

  In a conventional indoor unit of an air conditioner, the filter is removed from the front panel of the main body and cleaned, and after cleaning, the filter is reinserted inside the front panel of the main body.

  However, since indoor units are usually installed in high places in the room, it is not easy for elderly people and women to attach and remove the filter, and the work of cleaning the filter itself is avoided, resulting in energy savings and comfort. There has been a problem that the period of use without obtaining the original performance becomes long.

  In order to solve this problem, an air conditioner with a filter cleaning device as shown in FIG. 7 has been proposed (see, for example, Patent Document 1).

  The indoor unit of the air conditioner includes a filter 4, a heat exchanger 6, and an air passage that communicates a suction port 2 provided on the upper front surface and the upper surface of the main body with an air outlet 3 provided on the lower front surface. And a blower fan 5 are provided, and a filter cleaning device 9 for cleaning the filter 4 is slidably provided on the filter 4. The filter cleaning device 9 includes a rotating unit 10 that rotates the filter 4 along the inside of the filter cleaning device 9, a dust removing unit 11 that removes dust on the filter 4, and a dust storage unit 12 that stores dust. It is composed of

  With the above configuration, as the filter cleaning device 9 moves on the filter 4, the dust adhering to the filter 4 is sucked and carried to the dust container 12. In addition, the filter cleaning device 9 moves to the left and right, and the filter 4 is moved in a direction perpendicular to the filter 4 by the rotating means 10, so that dust can be sucked over substantially the entire surface of the filter 4.

JP 2002-340395 A

  However, Patent Document 1 does not specifically describe where a part of the filter that moves up and down every time cleaning is performed. For example, a configuration that protrudes outside the indoor unit is conceivable, but in that case, it is very unsightly and may hit external furniture or curtain rails.

  Further, it is conceivable to wind up the filter at the upper part or the lower part, but in this case, the size of the winding part becomes large, leading to an increase in the size of the main body.

  The above is the same even if the filter is moved left and right instead of up and down.

  The present invention has been made in view of such problems of the prior art, and provides an air conditioner that can perform reliable filter cleaning and includes a good-looking filter cleaning device. It is an object.

In order to achieve the above object, the invention described in claim 1 is a suction port for sucking air, a filter for removing dust from the air sucked from the suction port, and removing dust from the filter. A dust collecting unit that collects heat, a heat exchanger that exchanges heat with the air, a blower fan that sucks and blows air exchanged by the heat exchanger, and a blower that blows out the air blown out by the blower fan into the room An air conditioner in which an outlet is housed in a main body, wherein the dust collecting portion is provided in a strip shape at a substantially central portion of the main body on the upstream side of the filter, and the filters are opposed to each other across the dust collecting portion. A first filter and a second filter, each having a filter moving means for reciprocally moving the first and second filters to the vicinity of another filter in the main body. Passed through the dust collecting unit moves in the opposite direction a second filter alternately, and wherein the reciprocating to other filters near the body to each other.

The invention according to claim 2, wherein the dust collection unit, a belt-like shape shape extending along the filter surface in the moving direction perpendicular to the direction of the filter, it has an air flow passage therein It is characterized by.

The present invention as described in claim 3, wherein the dust collection unit, characterized by having a dust separation member for separating the dust from the filter surface in the portion where the filter passes.

The invention according to claim 4, wherein the dust collection unit, characterized by having a dust suction port for sucking the open dust toward the filter side.

  The invention described in claim 5 is characterized in that a dust removing means is constituted by the dust collecting portion and the dust discharge fan portion arranged inside the main body.

  The invention according to claim 6 is characterized in that it has a communication part for communicating the dust collecting part and the dust discharge fan part, and transports the dust using the communication part as a flow path.

  The invention according to claim 7 is characterized in that the dust collecting part has an air suction port in the vicinity of the end part on the side not connected to the dust discharge fan part.

  According to the present invention, the filter is divided into a plurality of sheets and each filter can be reciprocated so as to pass through the dust collecting unit. A storage space can be easily formed inside the main body. Moreover, even if the filter is moved, a part of the moved filter does not protrude outside the indoor unit, so that not only the appearance is good, but it does not hit external furniture or curtain rails.

  In addition, since the dust collecting part has a belt-like shape extending along the filter surface in a direction perpendicular to the moving direction of the filter and has an air flow path inside, the air collecting from the suction port to the heat exchanger is obstructed. The collected dust can be easily transported to the dust discharge fan.

  Further, since the dust collecting part has a dust separating member for separating the dust from the filter surface in the part where the filter passes, the dust collecting part is easily scraped off and the entire surface of the filter is surely cleaned. be able to.

  In addition, if a dust suction port that opens toward the filter side and sucks dust is provided in the dust collection portion, the entire surface of the filter can be easily cleaned by sucking the dust into the dust collection portion.

  In addition, since the dust removing means is configured by the dust collecting portion and the dust discharge fan portion arranged inside the main body, the dust accumulated in the dust collecting portion can be automatically discharged out of the dust collecting portion.

  In addition, since dust is transported using the communication part that connects the dust collecting part and the dust discharge fan part as a flow path, the dust collecting part has a negative pressure during the operation of the dust discharge fan, and the dust collecting part receives air. Even if there is a leak, the dust does not blow out from the dust collecting unit, the dust collecting unit can easily collect the dust of the filter, and the dust falling from the collecting chamber unit to the outside can be reduced. it can.

  In addition, since the dust collection unit has an air suction port near the end of the side not connected to the dust discharge fan unit, when the dust in the dust collection unit is discharged out of the dust collection unit by the dust discharge fan In addition, since it can be transported with a large air volume and uniform wind speed over the entire length of the dust collecting section, dust can be reliably discharged.

  Further, since the filter is configured to be able to reciprocate without extending from the main body, the appearance of the filter cleaning device during filter cleaning does not deteriorate.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

( Embodiment 1 )
1 is a perspective view of an indoor unit of an air conditioner according to Embodiment 1 of the present invention, FIG. 2 is a longitudinal sectional view of the indoor unit, and FIG. 3 is a schematic diagram for explaining the operation of a filter provided in the indoor unit. FIG.

  As shown in FIG. 1, a suction port 2 is formed from the front surface to the upper surface of the main body 1 of the indoor unit, and an air outlet 3 is formed at the lower portion. In the air passage connecting the suction port 2 and the blowout port 3, two filters 4 A and 4 B for removing coarse dust in the air, a blower fan 5 connected to the fan motor 8, and a heat exchanger 6 Is provided.

  The dust removing means 111 includes a dust collecting portion 113 provided in a strip shape in the left-right direction at a substantially central portion in the vertical direction of the main body 1 on the upstream side of the filters 4A and 4B, and a dust discharge fan disposed in the side space of the main body 1. Part 114, and a suction duct part 115 that communicates the dust collecting part 113 and the dust discharge fan part 114.

  As shown in FIGS. 2 and 3, the dust collecting unit 113 is configured to insert each of the upper filter 4A and the lower filter 4B into the filter moving passage 117, and is a filter for moving the filters 4A and 4B. Filter moving rollers 120A and 120B connected to the moving motor and brushes 118A and 118B as dust separating members for scraping dust adhering to the filters 4A and 4B into the dust collecting unit 113 are provided.

  The dust collection unit 113 is connected to the suction duct unit 115 via the connection port 119. A suction opening 122 is provided on the opposite side of the connection port 119, and the dust collection unit 113 has a longitudinal direction inside. A flow path for carrying dust on the air is formed.

  Furthermore, a plurality of ribs 123 for closing the gaps between the passage port 117 and the filters 4A and 4B are provided as closing members near the ends of the filters 4A and 4B. That is, as shown in FIG. 3 (a), one rib 123 is attached to one end of each filter 4A, 4B (the lower end of the upper filter 4A or the upper end of the lower filter 4B), and each filter 4A, Two ribs 123 are attached to the other end of 4B (the upper end of the upper filter 4A or the lower end of the lower filter 4B) at a predetermined interval.

  The dust removing means 111 having the above configuration operates as follows.

  First, when the filter moving roller 120A rotates clockwise in FIG. 3, the upper filter 4A moves forward and downward along the guide 121A, and the dust on the upper filter 4A moves along with the movement of the guide 121A. Is scraped off by the brush 118A and stored in the dust collecting unit 113.

  When the movement of the upper filter 4A is completed, the two ribs 123 block the front and rear passage ports 117, respectively.

  Similarly, the lower filter 4B moves rearward and upward along the guide 121B as the filter moving roller 120B rotates clockwise, and the dust on the lower filter 4B is brushed along with the movement of the guide 121B. It is scraped off by 118B and stored in the dust collecting unit 113.

  When the movement of the lower filter 4B is completed, the two ribs 123 close the front and rear passage ports 117, respectively, and the dust collecting unit 113 is sealed together with the ribs 123 on the upper filter 4A side.

  When the dust discharge fan unit 114 is driven in this state, the dust collection unit 113 passes through the connection port 119, the suction duct unit 115, and the dust discharge fan unit 114 from the suction opening 122 to the outside. An air flow is generated, and the dust stored in the dust collecting unit 113 is conveyed to the air flow and discharged to the outdoors.

  Thereafter, if the rollers 120A and 120B are reversed and the filters 4A and 4B are moved to their original positions, the filter cleaning is completed, and the air conditioner can be operated.

  In the present embodiment, the dust collected in the dust collecting unit 113 is discharged by the dust discharge fan unit 114. However, if the dust collecting unit 113 is configured to be openable and closable, the dust collecting unit 113 113 can be opened and cleaned, and in this case as well, there is an effect that the appearance is good during filter cleaning.

  Moreover, although the dust discharge fan part 114 is provided in the downstream of the dust collection part 113, it can also be provided in the upstream.

  Further, the two filters 4A and 4B may be arranged on the left and right and moved to the left and right, and the dust collecting portion 113 may be provided in a strip shape in the vertical direction at a substantially central portion in the width direction of the main body 1.

( Embodiment 2 )
4 is a perspective view of an indoor unit of an air conditioner according to Embodiment 2 of the present invention, FIG. 5 is a perspective view of a dust collecting unit, and FIG. 6 is a schematic diagram for explaining the operation of a filter.

  In the following description, the description overlapping that of the first embodiment will be omitted.

  As shown in FIG. 4, the dust removing means 211 includes a dust collecting unit 213 provided in a band shape in the vertical direction at the center in the width direction of the air conditioner, and a dust discharge fan unit disposed in the side space of the main body 1. 214 and a suction duct portion 215 that communicates the dust collecting portion 213 and the dust discharge fan portion 214. In addition, a flow path for carrying dust in the air in the longitudinal direction is formed inside the dust collecting unit 213.

As shown in FIG. 5, the dust collecting unit 213 includes a film 218 having a dust suction port 217 that opens toward the filter side, and a dust suction port movement that drives the film 218 to slide the dust suction port 217. Motor 216, and the dust suction port 217 moves up and down by the rotation of the dust suction port moving motor 216. The dust collecting unit 213 is connected to the connection port 21.
9 is connected to the suction duct part 215 through 9.

  As shown in FIG. 6, filter moving rollers 220A and 220B connected to filter moving motors are provided on the back side of the left and right filters 204A and 204B, respectively, and the left and right filters are interposed between the filter moving rollers 220A and 220B. A guide 221 for guiding 204A and 204B is provided.

  The dust removing means 211 configured as described above operates as follows.

  First, when the filter moving roller 220A rotates clockwise in FIG. 6, the left filter 204A moves to the right, rides on the guide 221, and is in close contact with the back surface of the dust collecting unit 213.

  In this state, dust adhering to the left filter 204A is sucked as the dust suction port 217 moves, is carried through the suction duct 215 to the suction fan unit 214, and is then discharged outdoors.

  When the dust suction port 217 moves from the lower end to the upper end of the left filter 204A, the filter moving roller 220A further rotates, moves the left filter 204A to the right, and sequentially cleans the dust on the filter 204A.

  When the left filter 204A moves to the right end and cleaning is completed, the filter moving roller 220A reverses and returns the left filter 204A to the initial position, and then the same operation is repeated for the right filter 204B. By such a movement, dust on both filters 204A and 204B can be completely cleaned.

  The two filters 204A and 204B may be arranged up and down and moved up and down, and the dust collecting unit 113 may be provided in a strip shape in the left-right direction at a substantially central portion of the main body 1 in the vertical direction.

  Further, in the first and second embodiments described above, the filter is divided into two in the moving direction, and dust is collected by one dust collecting unit 113, 213, but the filter is divided into three or more in the moving direction. And the structure which collects dust with a several dust collection part is also possible, and while having the same effect, cleaning time can further be shortened.

  In addition, when dust is discharged by the dust discharge fan units 114 and 214, a filter or the like that collects dust may be disposed downstream of the dust collection units 113 and 213 without discharging the dust to the outdoors.

  In addition, the dust collectors 113 and 213 collect dust by suction with a brush, but for example, other dust collecting means such as rotating a bar having an elliptical cross section to hit a filter and dropping dust can be used. Even if it uses, the effect that it looks good during filter cleaning similarly is produced.

  According to the present invention, the filter is divided into a plurality of pieces in the moving direction, and even if each filter is moved, a part of the moved filter does not protrude outside the main body. The present invention can be widely applied to a filter cleaning device that generally requires appearance in a device having a blower and a filter.

The perspective view of the indoor unit of the air conditioner in Embodiment 1 of this invention. The longitudinal cross-sectional view of the indoor unit of FIG. 2A and 2B are schematic diagrams for explaining the operation of a filter provided in the indoor unit in FIG. 1, in which FIG. 3A shows the time when the movement of the filter is started, and FIG. The perspective view of the indoor unit of the air conditioner in Embodiment 2 of this invention. The perspective view of the dust suction part provided in the indoor unit of FIG. The schematic diagram explaining operation | movement of the filter provided in the indoor unit of FIG. FIG. 7 is a perspective view of an indoor unit of a conventional air conditioner.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Indoor unit main body 2 Suction port 3 Air outlet 4A, 4B Filter 5 Blower fan 6 Heat exchanger 111 Dust removal means 113 Dust collection part 114 Dust discharge fan part 115 Suction duct part 117 Pass-through port 118A, 118B Filter brush 119 Connection port 120A, 120B Filter moving roller 121A, 121B Filter guide 122 Suction opening 123 Rib 204A, 204B Filter 211 Dust removing means 213 Dust collecting unit 214 Dust discharge fan unit 215 Suction duct unit 216 Dust suction port moving motor 217 Dust Suction port 218 Film 219 Connection port 220A, 220B Filter moving roller 221 Guide

Claims (7)

A suction port for sucking air, a filter for removing dust from the air sucked from the suction port, a dust collecting unit for removing and collecting dust from the filter, a heat exchanger for exchanging heat of the air, and the heat exchanger An air conditioner in which a blower fan that sucks and blows in air that has been subjected to heat exchange and a blower outlet that blows out the air blown out by the blower fan into a room is housed in the main body, and the dust collecting unit is the filter The first filter and the second filter that are opposed to each other with the dust collecting part interposed therebetween are provided in a substantially central part of the main body on the upstream side of the first and second filters. It has a filter moving means for reciprocating to the vicinity of another filter in the main body, the first and second filters are alternately moved in the reverse direction by the filter moving means and passed through the dust collecting part, An air conditioner characterized by reciprocating the other filters near the body are. Air according to claim 1, wherein the dust collecting unit, a belt-like shape shape extending along the filter surface in the moving direction perpendicular to the direction of the filter, characterized in that it has an air flow passage therein Harmony machine. The dust collection unit, an air conditioner according to claim 1 or 2, characterized in that it has a dust separating member for separating the dust from the filter surface in the portion where the filter passes. The dust collection unit, an air conditioner according to any one of claims 1 to 3, characterized in that it has a dust suction port for sucking the open dust toward the filter side. The air conditioner according to any one of claims 1 to 4, wherein a dust removing unit is configured by the dust collecting unit and a dust discharge fan unit disposed inside the main body. The air conditioner according to claim 5, further comprising a communication unit that communicates the dust collection unit and the dust discharge fan unit, and transports dust using the communication unit as a flow path. The air conditioner according to claim 5 or 6, wherein the dust collecting unit has an air suction port in the vicinity of an end portion on the side not connected to the dust discharge fan unit.

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