JPS6225938B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a filter device used in an air conditioner such as a room air conditioner. The present invention relates to a filter device for an air conditioner that is configured to remove dust.

Conventionally, the filter of an air conditioner generally has a structure as shown in the schematic configuration diagrams in FIG. It is composed of an air outlet 6, a filter outlet 7, a controller 8, a fan motor 9, etc. In this configuration, as the fan 3 rotates, air outside the air conditioner main body 1 is blown out to the outside through the inlet 5, the filter 4, the heat exchanger 2, the fan 3, and the outlet 6. During this time, the heat exchanger 2 dehumidifies and cools the air conditioner, and the filter 4 removes dust. Therefore, the dust collected mainly on the suction port 5 side of the filter 4 must be removed periodically from the filter outlet 7 and cleaned. If the filter 4 is clogged with dust, a sufficient amount of air cannot be secured, resulting in a decrease in operating efficiency and capacity, as well as an abnormal increase in refrigerant pressure. However, in actual use, cleaning is hardly done due to the troublesomeness of cleaning, and in reality, the above-mentioned disadvantages are accepted.

This invention was made in view of the above-mentioned circumstances, and is configured so that the filter can be cleaned without removing it from the air conditioner body, and the dust removed by the filter is removed using a household vacuum cleaner or the like.
To provide a filter device for an air conditioner that can remove dust simply and in a short time.

Embodiments of the present invention will be specifically described below with reference to FIGS. 2 to 11. In the following figures, the same parts and parts as in the conventional example are given the same reference numerals and explained.

FIG. 2 is a schematic configuration diagram of a filter device for an air conditioner according to the present invention, in which 10 is a drive roller, 11 is a fixed roller that also serves as a dust collection port, 12 is a dust collection port with a flocked brush, 13 and 14 are guide rollers, 15 16 is an endless filter, 16 is a rotation mechanism for the drive roller 10, and 17 is a communication pipe with an external opening of the air conditioner.

3 is a perspective view showing details of the main parts of FIG. 2, 19 is a flocked brush provided on the surface of the dust suction port 12 facing the filter 15, 18 is a connecting pipe with the communication pipe 17 of the rotating mechanism 16, A and B are the openings of the fixed roller 11 and the dust suction port 12, respectively, and are connected to the communication pipe 17.
It is adapted to be fitted into openings A' and B' of.

FIG. 4 is a detailed view of the fixed roller 11 and the dust suction port 12, where 11A is the backing plate portion of the fixed roller 11, 11B is the opening, and C and D are the filter 15.
shows the outer and inner surfaces of.

FIG. 5 is a detailed view of the drive roller 10.
A is an anti-slip device, and 10B is a rotating shaft.

FIGS. 6A and 6B are explanatory diagrams of an opening provided in the air conditioner main body 1 to which an external dust collector is connected, and the opening 30 is formed with a flexible portion 20 made of rubber or the like. Further, the opening/closing door 21 is configured to be openable/closable by a return spring 21A, a rotating shaft 21B, and a stopper 22, and the opening/closing operation is controlled by an opening/closing door operation detection device 21C.

Figure 10 shows the hose end 34 of the external dust collector.
It shows the state connected to A or 34B,
34A is a thick hose tip, and 34B is a thin hose tip. When the hose 34A or 34B is not connected, the opening/closing door 21 is released by the return spring 2 as shown in FIG.
1A and the stopper 22 shield the space between the opening 30 and the communication pipe 17.

Therefore, when an external dust collector (not shown) connected to the hose 34A or 34B is operated as shown in FIG. 10, the opening/closing door 21 is opened by negative pressure to enable dust collection. At this time, the opening/closing door operation detection device 21C generates an output signal. The opening/closing door operation detection device 21C is composed of an actuation piece attached to the rotating shaft 21B and a fixedly provided micro switch.

Further, the flexible portion 2 installed in the opening 30
0 is designed so that even if the central axis of the hose 34A or 34B and the central axis of the opening 30 are misaligned, the airtightness of the contact portion can be maintained.

FIG. 7 shows another embodiment of the opening 30 corresponding to FIG. 6, in which the opening 30 is formed in a convex shape. The opening/closing door 21 is a single door that opens around a rotating shaft 21B that also serves as a return spring 21A, that is, a torsion spring.

FIG. 8 shows an installation example of the opening 30 provided in the air conditioner body 1 described above, and the opening 30 shown in FIG.
This is an installation example. In the figure, 31 is a temperature indicator;
32 is a dust collection completion notification indicator, and 33 is an opening for piping or wiring.

FIG. 9 is a control wiring diagram according to the present invention.
1 is an AC power supply, 42 is a thermostat, 40 is a compressor control relay, and 21D is an opening/closing door operation detection device 2
1C output switch, 32 is dust collection completion notification indicator, 16F is filter 15 movement amount detector, 1
6G is its output switch.

Moreover, FIG. 11 shows the rotational structure 16 for driving the drive roller 10 described above, in which 16A is a turbine impeller, 16C and 16K are bearings, 19I is a rotating shaft,
16D is an integrated case, 16B is a pore for air intake,
16E is a reduction gear mechanism, 16F is a rotation speed detection gear mechanism, 16G is its output switch, 16H is a lead wire, and 16J is an output shaft.

The operation of the air conditioner filter device configured as above will be explained. That is, when cleaning the filter 15 with an external dust collector after the air conditioner body 1 has been in operation for a predetermined period of time, as shown in FIG. When the dust collector is operated by contacting the opening 30, the flexible part 20 maintains airtightness between the two despite the slight misalignment of the axes.
Holds well. Therefore, the door 21 opens, and accordingly, the door operation detection device 21C detects the open state of the door, and as shown in FIG. 9, the output switch 21D closes to the N side, and the air conditioner main body 1 operation is automatically stopped.

Further, the negative pressure at the opening 30 is
8, the turbine wheel 16A of the rotation mechanism 16 is rotated at high speed. This rotational force is applied to the reduction gear mechanism 16E.
, the speed is reduced and the torque is increased to generate rotational driving force on the output shaft 16J. This rotational driving force is transmitted to the rotating shaft 10B of the drive roller 10 via the coupling ring, and moves the endless filter 15 by the effect of the anti-slip device 10A.

Therefore, as shown in FIG.
The dust is sucked through the opening 11B of the fixed roller 11 and collected via the communication pipe 17 to an external dust collector through the opening 30.

At this time, the flocking brush 19 and the backing plate 11A improve the dust suction efficiency of the dust suction port 12. The fact that the filter 15 moves over the dust suction port 12 and makes one round can be detected from the rotational speed of the drive roller 10, which is indicated by 16 in FIG.
F is this rotation speed detection gear mechanism that detects a constant rotation speed of the output shaft 16J and closes the output switch 16G. As a result, the dust collection completion notification indicator 3 in Fig. 9
2 lights up, and as shown in FIG. 8, a lighting display is displayed on the front of the air conditioner main body 1, so that it can be known that the filter device of the air conditioner main body 1 has been cleaned.

As described above in detail, the filter device for an air conditioner according to the present invention has a simple structure, is easy to handle, and has the following effects.

(1) The filter can be cleaned by touching the end of the hose of a household vacuum cleaner to the opening of the air conditioner body, so there is no need to remove the filter from the air conditioner body, which is required in conventional methods, and this is especially For air conditioners installed on high walls or ceilings, it is extremely easy to collect dust from the filter, and since the opening has a flexible part, it is difficult to adjust the thickness of the hose end of the external dust collector or the opening. Airtightness can be maintained regardless of misalignment of the axis.

(2) The filter in the air conditioner body is endless and has essentially a two-layer filter effect, which doubles the dust-proofing effect and removes dust attached to the inner and outer surfaces of the endless filter using separate means. It is effective.

(3) The power for transporting the endless filter uses the negative pressure sucked in by an external dust collector, so it can be cleaned with a small amount of power.

(4) Dust can be removed in a short time using the dust collection power of an external dust collector, and the time for dust removal can be indicated by lighting on the display installed on the surface of the air conditioner body, making work more efficient. I can do it.

(5) In addition, the opening/closing door provided on the air conditioner body is normally closed, so there is no strange feeling, and the overall structure can be made compact, so it can be stored in a conventional air conditioner. .

In order to further improve the effects of the present invention, a filter clogging detection device may be used, for example, to detect pressure difference fluctuations across the filter and display it on the entire surface of the air conditioner main body.

Further, a separate small motor may be used as the power source for the drive roller, and the direction of relative movement between the filter and the dust suction port may be other than the example shown in FIG. 3.

Furthermore, as for the material of the flexible part provided in the opening, other than rubber, thin rubber with internal pressure of highly viscous oil, or an elastic body such as plastic rubber can also be used to achieve sufficient effects.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a schematic configuration of a conventional filter device for an air conditioner, FIG. 2 is an explanatory diagram showing a schematic configuration of a filter device for an air conditioner according to the present invention, and FIG. 3 is an explanatory diagram of its main parts. Figure 4 is an explanatory diagram of the dust suction port and fixed roller area, Figure 5 is an explanatory diagram of the drive roller, Figures 6 and 7 are explanatory diagrams of the opening, and Figure 8 is an explanation of the opening on the front of the air conditioner main body. 9 are control circuit diagrams, FIG. 10 is an explanatory diagram showing the state of adhesion between the external dust collector and the tip of the pipe, and FIG. 11 is an explanatory diagram showing the rotation mechanism of the drive roller. 1... Air conditioner body, 2... Heat exchanger, 3... Fan,
4... Fixed filter, 5... Inlet, 6... Outlet,
7... Filter removal port, 8... Controller, 9... Fan motor, 10... Drive roller, 10A... Anti-slip device, 10B... Rotating shaft, 11... Fixed roller, 11
A...Packing plate, 11B...Opening on fixed roller, 1
3, 14...Guide roller, 15...Endless filter, 16...Rotating mechanism, 16A...Turbine wheel, 16B...Air intake pore, 16C, 16K...
Bearing, 16I, 16J... Rotating shaft, 16D... Case, 16E... Reduction gear mechanism, 16F... Rotation speed detection gear mechanism, 16G... Output switch, 17, 18...
Communication pipe, 19... Flocking brush, 20... Flexible part, 2
DESCRIPTION OF SYMBOLS 1... Opening/closing door, 21A... Return spring, 21B... Rotating shaft, 21C... Opening/closing door operation detection device, 21D... Output switch, 22... Stopper, 30... Opening for connection with external dust collector, 31... Temperature display vessel, 32
...Dust collection completion notification indicator, 34A, 34B...Tip pipe of external dust collector, 40...Relay for compressor control, 41...AC power supply, 42...Thermostat.

Claims (1)

[Scope of Claims] 1. In an air conditioner equipped with a heat exchanger and a blower, a filter installed on the front surface of the suction side of the heat exchanger, a dust suction port provided opposite to the filter, and a relative position between the dust suction port and the filter. A filter device for an air conditioner, comprising a drive device for performing movement, and a communication pipe connecting a dust collector connection end having an opening on the outside of the air conditioner, a dust suction port, and the drive device. 2. Claim 1, characterized in that the drive device for causing relative movement between the filter and the dust suction port is configured to be driven by negative pressure generated by a dust collector connected to the outside of the air conditioner. The filter device for air conditioners described above. 3. The filter device for an air conditioner according to claim 1 or 2, wherein an anti-slip device is provided on the contact surface of the drive roller that drives the filter with the filter. 4. Claim 1, in which a patch plate is provided in contact with the surface of the filter opposite to the dust suction port, which is in contact with the dust suction port.
The filter device for an air conditioner according to any one of items 1 to 3. 5. The filter device for an air conditioner according to claim 1, wherein the guide roller of the filter has a hollow cylindrical shape, and an opening is provided in a part of the contact surface with the filter. 6. In such a way that the pipe tip of the external dust collector comes into contact with the opening provided on the outside of the air conditioner to maintain airtightness.
A filter device for an air conditioner according to claim 1, which comprises a flexible portion made of rubber or the like. 7. An opening/closing door is provided in an opening provided on the outside of the air conditioner, and the opening/closing door is configured to be opened by the dust collection force generated in conjunction with the operation of a dust collector connected to the outside. Claim 1:
The filter device for an air conditioner according to item 1 or 2. 8. Claims 1 to 8, characterized in that the filter is endless and is movable relative to the dust suction port by at least two rollers.
The filter device for an air conditioner according to any one of Item 5. 9 At the connection end of the dust collector that has an opening on the outside of the air conditioner, a device that detects the operation of the externally connected dust collector, stops the operation of the air conditioner, and detects the positional relationship between the filter and the dust intake port. The filter device for an air conditioner according to claim 1, further comprising a display device.