KR20050114640A - Air conditioner having indoor unit with automatic air filter-cleaning function - Google Patents

Abstract

Inside an indoor body of an air conditioner are received a heat exchanger and a fan for blowing air that has been subjected to heat exchange in the heat exchanger. An air filter is installed in the body on the upstream side of the heat exchanger. A suction nozzle having a suction opening opposite the air filter and sucking dust adhered to the air filter is slidably installed in the body, a suction/discharge device communicating with the suction nozzle and sucking/discharging the dust with air is provided in the body, and the suction/discharge device and the suction nozzle are connected by a telescopable or bendable suction hose.

Description

Air conditioner with indoor unit with automatic air filter cleaning function {AIR CONDITIONER HAVING INDOOR UNIT WITH AUTOMATIC AIR FILTER-CLEANING FUNCTION}

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

In the conventional air conditioner, as shown in FIG. 12 and FIG. 13, an air filter 5 is provided on the front surface of the heat exchanger 10 to prevent intrusion of dust into the main body 11. , The air filter 5 is freely attached and detached so that the attached dust can be cleaned by hand.

Moreover, as an air conditioner which makes cleaning of an air filter easy, it is a coaxial with a rotary brush, the brush cover which supports a rotating brush freely while it rotates, and covers it. A filter brush comprising a pinion provided, connected to a suction port provided with a suction cover of the vacuum cleaner on the brush cover, moved on the air filter, and deposited on the air filter. There is a thing which sucks dust while scraping off with a rotating brush (for example, refer patent document 1).

In addition, a collecting device, a clean device, a suction device, a supporting beam connected to the suction mechanism, a hose connected to the supporting beam, a vacuum generator, and a vacuum It has also been proposed that the separator is arranged on the suction side of the generator, so as to automatically suck dust attached to the air filter and to collect the dust in the separator (see Patent Document 2, for example).

In addition, a drive shaft and a driven shaft provided with a long belt-shaped air filter, a servo motor driving the drive shaft, a brush, a dust sensor and a fan arranged in an exhaust pipe are arranged. (fan), arithmetic processing means for calculating the continuous use time of the air filter, and a control means are also provided to remove dust with a brush while rotating the belt-shaped air filter (for example, Patent Document 3 Reference).

(Patent Document 1)

Japanese Patent Laid-Open No. 11-226331 (Second page, Figs. 1 to 4)

(Patent Document 2)

Japanese Patent Laid-Open No. 1-75020 (pages 1-9, Fig. 4)

(Patent Document 3)

Japanese Patent Laid-Open No. 6-74521 (page 2, Fig. 1)

However, in the conventional air cleaner equipped with the attached and detached type air filter, the air filter is removed from the air conditioner according to the frequency of use of the air conditioner, and the maintenance is performed by cleaning the dust attached by water washing or a vacuum cleaner or the like. It was cumbersome to have to perform the maintenance regularly. In addition, when periodic maintenance is not performed, dust accumulates in the air filter, which increases the resistance to intake air, resulting in a problem that the performance of the air conditioner is reduced or power consumption is increased.

Moreover, in what was disclosed by patent document 1, an electric vacuum cleaner is taken out every time an air filter is cleaned, the suction nozzle must be connected to the suction port of a brush cover, and it must move on an air filter, and requires great effort and time. There was problem to say.

In addition, in the case of the filter device described in Patent Document 2, dust adhered to the air filter is automatically sucked, but since the sucked dust is collected in the separator, it is necessary to periodically remove and treat the dust deposited on the separator. At the same time, it is cumbersome to neglect it, so that dust adhering to the air filter is not removed, and the ventilation resistance of the intake air is increased, resulting in a decrease in the performance of the air conditioner or an increase in power consumption.

In addition, in the case of the air conditioner disclosed in Patent Document 3, since a long brush having a length substantially equal to the full width of the air filter is required, and because the air filter is in the form of a belt, the thickness increases, and There was a problem that the depth dimension increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the prior art, and the cleaning and maintenance of the air filter is very easy, and an automatic cleaning function of the air filter capable of maintaining sufficient performance and preventing increase in power consumption. An object of the present invention is to provide an air conditioner having an attached indoor unit.

1 is a front view of an indoor unit of an air conditioner according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line I-I of FIG. 1. FIG.

3 is a cross-sectional view taken along the line II-II in FIG. 1.

4 is a perspective view of the filter device installed in the indoor unit of FIG.

5A is a longitudinal sectional view of the suction nozzle installed in the filter device of FIG.

5B is a partial cross-sectional front view of the suction nozzle of FIG. 5A.

6 is a perspective view of a filter device installed in an indoor unit of an air conditioner according to a second embodiment of the present invention.

7 is a perspective view illustrating a modification of the filter device.

8 is a perspective view of a suction hose installed in the filter device of FIG.

9 is a front view of the bent portion of the suction hose of FIG. 8;

10 is a cross-sectional view showing a modification of the suction hose.

11 is a perspective view illustrating another modified example of the suction hose.

12 is a front view of an indoor unit of a conventional air conditioner.

13 is a cross-sectional view taken along the line III-III in FIG. 12.

In order to achieve the above object, the present invention provides an air conditioner having an indoor unit in which a heat exchanger and a fan that blows air exchanged with heat in the heat exchanger in a main body are accommodated in an upstream side of the heat exchanger. An air filter attached to the main body, a suction nozzle freely sliding to suck dust attached to the air filter with an intake port facing the air filter, and a suction nozzle communicating with the suction nozzle to suck dust together with air. A suction exhaust device which exhausts, and a suction hose which is free to expand | contract or bend freely which communicates the suction exhaust apparatus and a suction nozzle are characterized by the above-mentioned.

This configuration makes it possible to automatically perform the cleaning of the air filter, to maintain the predetermined performance of the air conditioner and to prevent the increase in power consumption.

In addition, the suction hose free of bend has one end thereof connected to the suction exhaust device, and the other end thereof is connected to the side of the opposite side of the suction nozzle as viewed from the suction exhaust device. The intermediate part is bent in a substantially U shape.

It is also possible to provide a lead wire for supplying electric power to the electric component along the longitudinal direction of the surface of the suction hose. In this case, a plurality of wires constituting the lead wire are formed in a flat shape. At the same time, when the suction hose is positioned at the outer circumferential portion of the U-shaped bend, the lead wire is bent in accordance with the bending action of the suction hose, and the drag wire can be easily dragged without applying excessive stress to the lead wire. have.

In addition, if a gap is provided between the U-shaped bent portion of the suction hose and the lead wire, the U-shaped bent portion of the suction hose does not come into frictional contact with the suction hose, and it is difficult to be disconnected.

Moreover, when the guide groove which guides a lead wire below a suction hose is provided, a lead wire may not shift | deviate with respect to a suction hose, and stable bending operation | movement and accommodation can be ensured.

Alternatively, the plurality of wires constituting the lead wire may be bound in a substantially circular shape, and the center line of the lead wire may coincide with the center line of the suction hose, in which case the lead depends on the bending action of the suction hose. Since the lead is bent likewise, it can be safely pulled without bothering the force on both sides.

EMBODIMENT OF THE INVENTION Below, embodiment of this invention is described, referring drawings.

(First embodiment)

1 to 3 show an indoor unit of the air conditioner according to the first embodiment of the present invention, in which FIG. 1 is a front view of the indoor unit, and FIGS. 2 and 3 are lines I-I in FIG. 1, respectively. And sectional view along the line II-II.

As shown in FIGS. 1 to 3, the main body 11 of the indoor unit includes a heat exchanger 10 and a fan 14 for receiving air in the room through the heat exchanger 10 and blowing air heat-exchanged. ) And a filter device 1 disposed upstream of the heat exchanger 10.

As shown in FIG. 4, the filter device 1 includes a filter frame 2 provided between the main body 11 and the heat exchanger 10 and a filter frame 2 freely attached to and detached from the filter frame 2. It is provided between the air filter 5 which removes the dust contained in the inflowing air, and between the air filter 5 and the main body 11, and the sliding movement is made to the left and right (arrow A direction) facing the air filter 5 A suction hose 3 having a free suction nozzle 4, a flexible crimp box structure having one end connected to the lower end of the suction nozzle 4, and the other end of the suction hose 3. ) And an exhaust duct 7 having one end connected to the exhaust side of the suction exhaust device 6 and the other end opened to the outside. Moreover, the lower end of the suction nozzle 4 is connected to the drive motor 9 via the drive wire 8, The upper end and the lower end of the suction nozzle 4 integrated with the filter frame 2 integrally. It is in sliding contact with the formed upper rail 12 and lower rail 13.

5A and 5B, the intake nozzle 4 is bent in the middle portion to match the shape of the air filter 5, and the intake nozzle 4 has a slit (opposed against the air filter 5). A suction port 4a opened in a slit shape is formed.

The operation of the filter device 1 having the above configuration will be described below.

After the operation of the air conditioner stops, when the suction exhaust device 6 starts to operate, air is sucked in from the suction port 4a of the suction nozzle 4 in communication with the suction hose 3. And the suction nozzle 4 which was located in the one end side of the air filter 5 is the other end side of the air filter 5 by the drive wire 8 connected to the drive motor 9. While sliding in the direction of the arrow A toward, the dust adhering to the surface of the air filter 5 is sucked in, collected and discharged from the exhaust duct 7 to the outside. When the suction nozzle 4 cleans the entire surface of the air filter 5 and reversely rotates the drive motor 9 when the other end side of the air filter 5 is reached, the suction nozzle 4 returns to the initial position. By moving in the returning direction, the surface of the air filter 5 can be cleaned again.

Moreover, since the suction hose 3 which connects the suction nozzle 4 and the suction exhaust apparatus 6 is freely expanded and contracted, since the suction hose 3 expands and contracts according to the sliding motion of the suction nozzle 4, The suction nozzle 4 always communicates with the suction exhaust apparatus 6 regardless of the position.

(2nd Embodiment)

6 is a perspective view of a filter device 1 provided in an indoor unit of an air conditioner according to a second embodiment of the present invention, wherein the filter device 1 includes a suction nozzle 4 and a suction exhaust device 6. There is provided a suction hose (3) free of bends connecting the wires. One end of the suction hose 3 is connected to the suction exhaust device 6, while the other end thereof is connected to the side of the opposite side of the lower end of the suction nozzle 4 as viewed from the suction exhaust device 6. The intermediate portion is bent in a substantially U shape.

In the filter device 1 having the above configuration, when the suction exhaust device 6 starts to operate, the suction nozzle 4 located at one end side of the air filter 5 is for driving connected to the drive motor 9. The wire 8 slides in the direction of the arrow A, but the suction hose 3 connecting the suction nozzle 4 and the suction exhaust device 6 is freely bent, so that the suction nozzle 4 Since the suction hose 3 is bent by the sliding motion, the suction nozzle 4 is always in communication with the suction exhaust device 6 irrespective of its position.

In addition, the length of the suction hose 3 is set so that when the suction nozzle 4 is located in the other end side of the air filter 5, the suction hose 3 may bend somewhat flexible.

FIG. 7 shows a modification of the filter device 1, and FIG. 8 shows a suction hose 3 provided in the filter device 1 of FIG. 7.

As shown to FIG. 7 and FIG. 8, the suction hose 3 is attached with the lead wire 15 for supplying electric power to the electrical component (not shown) provided in the suction nozzle 4. The plurality of wires 15a constituting the lead wire 15 are integrally formed in a flat shape, along the longitudinal direction of the suction hose 3, and further, the U-shaped bent portion 3a of the suction hose 3. Located on the outer periphery of

Although the electric component is not shown in particular, the motor which drives the opening-and-closing adjustment means provided in order to change the size of the inlet 4a so that the dust may be sucked in efficiently, or the rotating brush provided to scrape the dust attached to the air filter 5, It is a motor for driving the rotation.

In the filter device 1 having the above-described configuration, when the suction exhaust device 6 starts to operate, the drive wire in which the suction nozzle 4 located at one end of the air filter 5 is connected to the drive motor 9 is provided. (8) slides in the direction of arrow A. FIG. At this time, since the lead wire 15 for electrical components is provided in contact with the suction hose 3, the lead wire 15 is also bent in accordance with the bending operation of the suction hose 3.

Moreover, since the some wire 15a which comprises the lead wire 15 is integrally formed in flat shape, the lead wire 15 can be made thin and can be dragged in a small space.

In addition, as shown in FIG. 9, when the clearance gap B is provided between the lead wire 15 and the U-shaped bent part 3a of the suction hose 3, the U-shaped bent part of the suction hose 3 will be provided. (3a) Friction due to expansion and contraction of the outer circumference can be prevented, and premature deterioration of the lead wire 15 can be prevented.

10 shows another modified example of the suction hose 3, and the guide groove 16 for the lead wire 15 is provided below the suction hose 3. In this example, the lead wire 15 does not deviate from the suction hose 3 in the lateral direction (the front and rear direction of the indoor unit), and it is possible to ensure stable bending operation and accommodation, and the lead wire 15 is It does not fall and get disconnected by other appliance parts.

11 shows another modified example of the suction hose 3, and binds a plurality of points 15a of the lead wire 15 with the stop ring 17 in a form as close to a circle as possible. (結束) It is. In this example, the lead wire 15 is provided on the side surface (front side) of the suction hose 3 so as to coincide with the center line of the suction hose 3 and the center line of the lead wire 15. Since the lead wire 15 similarly performs the bending operation according to the bending operation of 3), the lead wire 15 can be safely dragged around without causing excessive force between the plurality of lines 15a.

In the above embodiment, the air filter 5 is freely attached and detached to the filter frame 2, but the filter frame 2 may be part of the main body 11, and the air filter 5 may be attached. It can also be set as the structure which cannot be fixed to the main body 11, and can be attached and detached. However, if the air filter 6 is attached and detached freely to the main body 11, it is possible to easily clean dust, oil and the like which cannot be removed by the suction cleaning operation of the suction nozzle 4.

In addition, in the said embodiment, although the suction exhaust apparatus 6 started operation after the operation | movement of an air conditioner is stopped, you may make it operate the suction exhaust apparatus 6 before the operation of an air conditioner, or during operation.

In addition, in the said embodiment, although the exhaust duct 7 was connected to the suction exhaust apparatus 6, and the dust attracted by the suction exhaust apparatus 6 was discharged | emitted with air outside, the exhaust duct 7 It is not necessary to install it. In this case, a dust collecting case free of attachment and detachment having a dust collecting net is provided in the suction exhaust device 6, and dust collected by the suction exhaust device 6 is collected by the dust collecting net, while dust The air drawn together with the air may be discharged from the suction exhaust device 6, and the dust collected by the dust collection network can be removed by removing the dust collecting case from the suction exhaust device 6.

Claims (8)

An air conditioner having an indoor unit in which a heat exchanger and a fan that blows air exchanged with heat in the heat exchanger in a room are accommodated in a main body, An air filter attached to the main body on the upstream side of the heat exchanger, a suction nozzle freely sliding to suck dust attached to the air filter opposite to the air filter, and an air in communication with the suction nozzle And a suction exhaust device for sucking and exhausting dust, and a suction hose freely connected to communicate the suction exhaust device with the suction nozzle. An air conditioner having an indoor unit accommodating a heat exchanger and a fan for blowing air heat-exchanged in the heat exchanger to a room, An air filter attached to the main body on the upstream side of the heat exchanger, a suction nozzle freely sliding to suck dust attached to the air filter opposite to the air filter, and an air in communication with the suction nozzle And a suction exhaust device for sucking and exhausting dust together with a suction hose freely communicating with the suction exhaust device and the suction nozzle. 3. The suction hose according to claim 2, wherein one end of the suction hose is connected to the suction exhaust device, and the other end thereof is opposite to the suction nozzle as viewed from the suction exhaust device. The air conditioner connected to the side surface, The intermediate part is curved in substantially U shape. The air conditioner according to claim 2 or 3, wherein a lead wire is provided for supplying electric power to an electric component along the longitudinal direction of the suction hose surface. The air conditioner according to claim 4, wherein a plurality of lines constituting the lead wire are formed in a flat shape and positioned at an outer circumferential portion of the U-shaped bent portion of the suction hose. The air conditioner according to claim 5, wherein a gap is provided between the U-shaped bent portion of the suction hose and the lead wire. The air conditioner according to any one of claims 4 to 6, wherein a guide groove for guiding the lead wires is provided below the suction hose. 5. The air conditioner according to claim 4, wherein a plurality of lines constituting the lead wire are bundled into a substantially circular shape, and the center line of the lead wire and the center line of the suction hose are made to coincide.