JPS6064139A - Air filter cleaning device for air-conditioning machine - Google Patents

Abstract

PURPOSE:To prevent the deterioration of room cooling or heating capacity by a method wherein the cleaning device, removing dust adhered to the surface of the air filter, is provided to drive the cleaning device for a predetermined period of time after throwing an operating switch in and operate an indoor fan thereafter. CONSTITUTION:When the operating switch 15 is thrown in, a compressor 16, an outdoor fan motor 17 and a timer 18 are conducted respectively. According thereto, a cleaning motor 13 is operated for a given period of time to rotate a roller 9 and the tubular air filter 12 for a predetermined period of time and the dust, being adhered to the air filter 12, is removed by a brush 8 projected from a dust receiving pan 7. After a predetermined period of time, the contact T1 of the timer 18 is opened and the contact T2 of the same is closed, therefore, the cleaning motor 13 is stopped and the indoor fan motor 19 is operated. According to these operations, the normal refrigerating cycle operation may be effected.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cleaning device for removing dust from an air filter of an air conditioner.

Conventional configuration and its problems The structure will be explained with reference to FIGS. 6 and 7.

In the figure, reference numeral a denotes a front grill provided on the front of the air conditioner main body (not shown), and an air intake port and an air outlet C are provided on the front surface of the grill. The air sucked in through the suction port is dust-removed by an air filter d, and then passed through an indoor heat exchanger (see figure), which constitutes a well-known refrigeration cycle together with an outdoor heat exchanger and a compressor (none of which are shown). (not shown)
The heat is exchanged by the air, and the air is blown out from the air outlet C.

However, in this configuration, when the amount of dust removed and attached to the air filter dK increases, ventilation resistance increases and the amount of air passing through the indoor heat exchanger (not shown) decreases. This resulted in a decrease in cooling capacity or heating capacity. Therefore, it is necessary to periodically pull out the air filter d from the front grille a and remove the adhering dust, but the current situation is that the decision on when and how to clean it is left to the user. Then, the device is used in the cleaned state, which poses a problem in terms of air conditioning efficiency or power consumption.

Furthermore, in the conventional configuration, when the air filter d is pulled out from the front grille a, the air filter d comes into contact with the guide rail e, the removal hole f, etc., and the dust that has been removed and attached falls into the room. There were also problems.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional problems, and aims to prevent the cooling capacity or heating capacity from decreasing by periodically cleaning the air filter.

Structure of the Invention In order to achieve this object, the present invention includes an air filter at the suction port of an air conditioner, and an air filter for removing dust adhering to the windward surface of the J letter by friction, vibration or electrostatic adsorption means. A cleaning device is provided, and a drive device that operates the cleaning device for a certain period of time when an operation switch is turned on, and an operation switching device that stops the cleaning device and drives an indoor fan motor after the set time has elapsed. .

This configuration allows regular cleaning of the air filter.

DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

First, the configuration of the air conditioner will be explained with reference to FIGS. 1 to 4.

In the figure, reference numeral 1 denotes an air conditioner main body, a front grill 4 is attached to the indoor side of the main body, and an air intake port 2 and an air outlet 3 are provided on the front surface. Further, the front grille 4 is provided with a frame air filter 6 mounted along the guide rail 5. Furthermore, the frame air filter 6 has an interval that spans the width of the suction port 2,
Two rollers 9 are provided spanning the side plates 10 and 11.

Reference numeral 12 denotes an air filter stretched between the two rollers 9, and the air filter 12 is formed into a cylindrical shape as shown in FIG. A cleaning motor 13 is attached to one of the rollers 9 to drive the air filter 12 via the roller 9.

Reference numeral 14 denotes a fixture for fixing the cleaning motor 13 to the side plate 11. On the lower surface of the air filter 6 with a frame, there is a plate 7 which is a vehicle support that is removably supported on the front grille 4.
is provided. As shown in FIG. 4, a brush 8 is provided on the tray 7 of the vehicle holder so as to protrude from the cylindrical air filter 12 during use.

The electric circuit of the air conditioner having the above configuration will be explained with reference to FIG.

In the figure, reference numeral 15 denotes an operation switch, to which a compressor 16, an outdoor fan motor 17, and a timer 18, which is a delay device, are connected in parallel. Furthermore, the cleaning motor 13 and the indoor fan motor 19 are connected to the contacts T1 and T2Vc of the timer 18.

In the above configuration, the operation of the air filter cleaning device will be explained. When the operation switch 16 is turned on, the compressor 16 and outdoor motor 17,
=-≧shih-≧shi1hq5'Wt-! hL As a result, the rotation motor 13 is operated for a certain period of time, and the cleaning motor 13 rotates the roller 9 and the cylindrical air filter 12 for a certain period of time. Remove dust attached to the

The removed dust is received by a tray 7 provided below. After the predetermined period of time, the contact T1 of the timer 18 opens and the contact T2 closes, so the cleaning motor 13 stops and the indoor fan motor 19 starts operating. Due to this busyness, normal refrigeration cycle operation is performed.

Moreover, the dust accumulated on the vehicle receiver tray 7 can be removed from the vehicle receiver tray 7 by periodically removing the vehicle receiver tray 7 from the front grille 4.

Therefore, since the air filter 12 is cleaned immediately after the operation switch 16 is turned on and the refrigeration cycle starts operating, the increase in ventilation resistance [accompanied by the decrease in the cooling capacity or heating capacity] is eliminated.

In addition, since the air filter 12 is automatically cleaned, there is no need to bother with cleaning, which improves usability.

In this embodiment, as a means for removing dust from the air filter 12, the same effect can be obtained even if the dust is removed by a method such as a blowing method using a blower 8 or an electrostatic adsorption method that adsorbs dust using static electricity. can get. Further, the air filter 12 is not limited to a cylindrical shape, but may have a belt shape on one side to reduce ventilation resistance. Further, the timer 18 is not limited to a mechanical type, and may be an electronic timer switch. Further, in this embodiment, the timer 18 serves both as a drive device and an operation switching device, but it can also be used as a dedicated circuit for each.

Effects of the Invention As described above, the present invention provides an air filter at the suction port and a cleaning device for removing dust attached to the surface of the air filter, drives the cleaning device for a certain period of time after turning on the operation switch, and then turns on the indoor fan. Since the air filter is cleaned every time the air conditioner starts operating, it prevents the cooling and heating capacity from decreasing due to increased ventilation resistance, and also allows the air filter to be cleaned frequently. This has the effect of improving usability.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an air conditioner equipped with an air filter cleaning device according to an embodiment of the present invention, and FIG.
- Figure 3 is a cross-sectional view of the front grill taken along line ■. Figure 3 is a perspective view of the air filter with frame in the air filter cleaning device.
The figure is a perspective view of the dust tray of the air filter cleaning device, Figure 5 is a schematic electrical circuit diagram of the air conditioner, and Figure 6 is a perspective view of the dust pan.
The figure is a sectional view of a front grill of an air conditioner showing a conventional example, and FIG. 7 is a perspective view of a frame air filter showing a conventional example. 1...Air conditioner body, 2...Suction port, 3-...
・Air outlet, 7...Dust catcher is a plate, 8...Brush, 9
...Parola, 12...Air filter, 13-...
・Cleaning motor, 18...Timer (drive device, operation switching device), 19...Indoor fan motor, T1
・T2-...Contact. Name of agent Patent attorney Toshio Nakao 11 or 1 person Figure 1 Figure 2 4 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] A wind circuit having an inlet and an outlet 1 is installed inside the air conditioner body, and an air filter is installed at the inlet to remove dust from the air, and dust attached to the windward surface of the air filter is removed by friction and vibration. Alternatively, a cleaning device that uses electrostatic adsorption means is provided, and a drive device that operates the cleaning device for a certain period of time when an operation switch is turned on, and an operation that stops the cleaning device after the set time has elapsed and drives an indoor fan motor. Air filter cleaning device for air conditioners equipped with a switching device.