JPS62268929A - Air conditioner - Google Patents

Abstract

PURPOSE:To enable a filter to be automatically cleaned, by a system in which a looped belt form filter disposed between an air suction port and a blow-off port and capable of being moved in a loop is driven to move in a loop under control, an air flow is blown to the filter, and the blown air is sucked. CONSTITUTION:A looped belt form filter 14 is driven to move in a loop by a loop motion driving means 15. Dusts are sucked through an air suction port 3t, are caught by the filter 14, and are fed. An air flow generated by a fan 164 is made to flow the filter 14 through a blow-off nozzle 161. The dusts being fed in the state of being caught by the filter 14 are blown away, whereby the filter 14 is cleaned one part after another. A suction nozzle 162 is disposed in parallel to the blow-off nozzle 161, whereby air in the vicinity of the suction nozzle 162 is sucked through the nozzle 162 by the fan 164, and are introduced into a dust-collecting container 166. The dusts blown away are led into the container 166 together with air, and are collected in the container 166. Accordingly, the dusts caught by the filter can be automatically removed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an air conditioner having a dust collector that automatically removes dust from a dust filter.

[Conventional technology]

FIG. 5 is a sectional view showing a conventional air conditioner disclosed in Japanese Utility Model Publication No. 57-41814. In FIG. Reference numeral 2 denotes a cabinet, which is formed by fixing the openings of a front box 3 and a rear box 4 to each other, and the front box 3 has an air intake port 3t, three air outlets, and a filter insertion port 3f at the bottom. The rear box body 4 integrally forms a casing 5 and a drain tray 6. Reference numeral 7 denotes a filter, which is formed by stretching a net over a frame body, and is removably attached to cover the air suction port 3t by inserting the filter insertion port 3f, and filters dust in the air sucked from the air suction port 3t. is being captured. 8 is a heat exchanger disposed behind the filter 7, and 9 is a drain receiver disposed below the heat exchanger 8. A guide plate 10 connects the end of the casing 5 and the lower end of the three air outlets, and guides the airflow guided by the casing 5 to the three air outlets. Reference numeral 12 denotes a blower disposed behind the heat exchanger 8, which sucks air through the air suction port 3L, the filter 7, and the heat exchanger 8, and blows it out through the air outlet 3.

[Problem that the invention seeks to solve]

In conventional air conditioners, the filter 7 is inserted through the filter insertion port 3f and removably attached to cover the air suction port 3t. Therefore, in general, the clogging status of the filter is constantly monitored. The filter 7 is not cleaned regularly, or whenever the function of the heat exchanger 8 deteriorates due to clogging of the filter 7, and the air conditioner is not operated until the filter 7 is cleaned. However, as the lotus rotation time elapses, the air volume decreases below the set value, and the system is not operated efficiently. Further, in order to operate the air conditioner efficiently, cleaning the filter 7 frequently is a problem in that it is a hassle for the user as well as the task of removing dust from the filter 7.

This invention was made in order to solve the above-mentioned problems, and aims to provide an air conditioner equipped with a dust collector that automatically removes the dust caught in the dust collection net 7. It is said that

[Means for solving problems]

In the air conditioner according to the present invention, the dust collector includes an endless belt-shaped filter, a rotation drive means, a dust removal means, and a dust collection means, and the dust collection device rotates between an air inlet and an air outlet. The endless belt-shaped filter, which is arranged so as to be rotatable, is rotated by the rotary drive means to capture dust, the captured dust is blown away by the dust removing means to clean the filter, and the blown dust is removed by the dust collecting means. The material is collected by suction.

[Effect]

The dust collector according to this invention rotates an endless belt-shaped filter rotatably disposed between an air inlet and an air outlet by a rotary drive means, and blows air onto the filter by a dust removal means, Since the structure is configured to suck the air blown by the dust collecting means, the dust in the air is transported while being captured by the filter, and when it passes through the dust removing means, it is blown away by the dust removing means and the dust is collected. It is collected by suction by means.

[Embodiments of the invention]

Figures 1 and 2 show an embodiment of the present invention.

In the figure, 1 to 3.3t, 31, 6.8 to 12 are the fifth
Shows the same parts as the figure. 121 is a cross-flow type ventilation fan, 122 is a ventilation fan motor that drives this fan 121, and these 121 and 122 cause the ventilation f
i12. Reference numeral 13 denotes a dust collector, which is composed of an endless belt-shaped filter 14, a rotation drive means 15, and a filter cleaning device 16. The endless belt-shaped filter 14 has the air inlet 3t and the air outlet 3.
151 and 152, and is stretched between rotating shafts 151 and 152. The rotation drive means 15 is connected to the rotation shaft 151.1.
52, and a filter drive motor 153 that rotationally drives the rotating shaft 151. The filter cleaning device 6 includes a blowing nozzle 161 provided along the rotating shaft 151 via the filter 14, and a blowing nozzle 161 provided along the rotating shaft 151 through the filter 14.
A suction nozzle 162 arranged in parallel with 1 and this suction nozzle 16
2 and the blowing nozzle 161.
3, a dust removal fan 164 provided in this duct 163 to generate airflow to the suction nozzle 162 and the blowout nozzle 161; a dust removal fan motor 165 that rotationally drives this fan 164; and the fan 164 and the suction nozzle. 162 and an air-permeable dust collection container 166 provided in a duct 163 between the airflow nozzle 161, which directs the air blown out through the blowout nozzle 161 to the filter 14.
The dust captured by the dust collector is blown away, and the blown dust is sucked through a suction nozzle 162 and introduced into a dust collection container 166, where the dust is collected. The blowing nozzle 161, the dust removal fan 164, and the dust removal fan motor 165 constitute a dust removal means for blowing off the dust captured by the filter 14, and the suction nozzle 162, the dust collection container 166, and the dust removal fan 164, a dust removal fan motor 165, and a dust collection container 166 constitute a dust collection means for suctioning and collecting blown dust.

The air conditioner of this embodiment has an endless belt-shaped filter 1.
4 is configured to be rotationally driven by the rotation drive means 15, so when dust is floating in the air, this dust is sucked in through the air suction port 3t and when passing through the filter 14, the filter 14 captured and transported by

Furthermore, since the air conditioner of this embodiment is configured to blow the airflow generated by the fan 164 onto the filter 14 through the blow-off nozzle 161, the dust that is being transported while being captured by the filter 14 is removed from the blow-off nozzle 1.
When passing 61.

The filter 14 is cleaned in turn.

Further, a suction nozzle 162 is arranged in parallel with the blow-off nozzle 161, and the air near the suction nozzle 162 is sucked by the fan 164 through the suction nozzle 162, and the dust collection container 16 is
Because I designed it to lead to 6.

The dust blown by the blowing nozzle 161 is guided to the dust collecting container 166 together with the air, is captured by the dust collecting container 166, and is retained in the dust collecting container 166.

In the embodiment described above, the filter 7 and the dust removal fan 164 are driven at a constant speed by the filter drive motor 153 and the dust removal fan motor 165, respectively.
When the speed of the wind passing through the filter 14 is low, noise due to air waves generated by the dust removal fan 164, especially blowing onto the filter 14 through the blowing nozzle 161,
The noise sucked through the suction nozzle 162 is audible.

Next, a method for reducing the above noise will be explained.

FIG. 3 is a speed control circuit diagram of a motor that drives the ventilation fan 121, the filter 14, and the dust removal fan 164. Air blowing fan motor 20, filter drive motor 21
And the dust removal fan motor 22 is a pole number converting motor,
The number of poles can be changed in stages, and each is connected to an AC power source 24 via an operation switch 23 and to the power source 24 via a changeover switch 25. The changeover switch 25 serves as a connection terminal, and M and H are connected to the pole number changeover terminals of the motors 20 and 21 and 22, respectively, and the contact piece C is connected to the power supply 24. The ventilation fan motor 20 operates the ventilation fan 121 as follows:
The filter drive motor 21 rotates the filter 14, and the dust removal fan motor 22 rotates the dust removal fan 164.

When the contact piece C of the changeover switch 25 is switched to the connection terminals H1M and L, the ventilation fan motor 20, filter drive motor 21, and dust removal fan motor 22 are all operated as follows.
Since the configuration is configured to operate at high speed, medium speed, and low speed, respectively, when the speed of the fan motor 20 for blowing air is high, that is, when the sound of the air blowing by the fan motor 20 for blowing air is large, the noise of the air blowing by the dust removal fan motor 22 becomes high. On the other hand, when the speed of the fan motor 20 for blowing air is low, that is, when the sound of the air blowing by the fan motor 20 for blowing air is low, the noise of the air blowing from the fan motor 22 for dust removal becomes low, and it is difficult for air conditioner users to use the dust removal fan. Only the sound of air blowing by the motor 22 is never audible.

In addition, the dust captured by the filter 14 is removed by the air circulation.
Even if the number of filters increases accordingly, the filter 14 can be properly cleaned because the dust removal fan motor 20 and the filter drive motor 21 are driven according to the drive speed of the ventilation fan motor 20.

As shown in FIG. 4, when the dust removal fan motor 22 and the filter drive motor 21 are disconnected from the connection terminal of the changeover switch 25, the ventilation fan motor 20
Since the dust removal fan motor 22 and the filter drive motor 21 stop at low speeds when the air blowing noise is at its lowest, no noise is generated due to air suction by the dust removal fan 164, as shown in FIG. 3 above. Noise is reduced compared to when connected.

Therefore, when the speed of the fan motor 22 for blowing air is medium speed or low speed, if the fan motor 20 for dust removal and the filter drive motor 21 are stopped, noise can be further reduced.

In addition to the above motor speed control example, the ventilation fan motor 122. A resistor (for example, one that utilizes the resistance change of SSR) is inserted into the secondary circuit of the filter drive motor 153 and dust removal fan motor 165 to change the resistance and control the speed of the motors 122, 153, and 165. too,
There is no difference in terms of speed control using the changeover switch 25 and the effect during operation.

〔Effect of the invention〕

This invention has a configuration in which an endless belt-shaped filter rotatably disposed between an air intake port and an air outlet is rotationally controlled, and an air flow is blown onto the filter, and the blown air is sucked. As a result, the dust captured and transported by the filter can be sequentially blown away by the air flow, and the blown dust can be collected by suction, and the filter can be automatically cleaned.

[Brief explanation of the drawing]

FIG. 1 and FIG. 2 are diagrams showing one embodiment of this invention,
FIG. 1 is a partially cutaway perspective view, and FIG. 2 is a sectional view. Third
4 and 4 are motor speed control circuit diagrams, respectively, and FIG. 5 is a sectional view showing a conventional example of an air conditioner. In the figure, 3t...air suction port, 3 sentences...blowout port, 14...filter, 15...rotation drive means, 161...blowout nozzle, 162...suction nozzle, 164... - Dust removal fan, 165...Dust removal fan motor, 166...Dust collection container.

Claims (4)

[Claims] (1) An endless belt-shaped filter rotatably disposed between an air inlet and an air outlet, a rotary drive means for rotationally driving this filter, and a dust remover that blows away dust captured by the filter. What is claimed is: 1. An air conditioner comprising: a dust collection device comprising a means for collecting blown dust; and a dust collection means for suctioning and collecting blown dust. (2) The rotation driving means includes speed control means for driving the endless belt-shaped filter at high, medium, and low speeds, respectively, depending on high, medium, and low speeds of the wind passing through the filter. An air conditioner according to claim 1. (3) The rotation driving means drives the endless belt-shaped filter when the speed of the wind passing through the filter is high, medium, or low, and controls the speed to stop when the speed is low. An air conditioner according to claim 1 or 2, characterized in that the air conditioner is provided with means. (4) The rotary drive means drives the endless belt-shaped filter at a high speed when the speed of the wind passing through the filter is high or low, and when it is low, drives the filter at a low speed or stops driving. An air conditioner according to any one of claims 1 to 3, characterized in that the air conditioner is equipped with speed control means.