JP6709907B2 - Air conditioner - Google Patents

Description

The present invention relates to an air conditioner including an air cleaning filter.

Patent Document 1 proposes an air conditioner that can improve the cleanliness of the airflow without increasing the ventilation resistance of the airflow.

Patent Document 1 discloses a housing that defines an opening surface in a cross section of a passage of an air flow, an air filter having a filter for coarse dust in a first section and an air cleaning filter in a second section, and an air cleaning filter on an opening surface. And a drive member for driving the air filter between a first position for arranging the air filter and a second position for displacing the air cleaning filter at least partially from the opening surface.

Then, according to the air conditioner of Patent Document 1, when the air cleaning filter is located on the opening surface, the air flow passes through the air cleaning filter to realize the air cleaning function. Further, when the air cleaning filter is displaced from the opening surface, the coarse dust filter is located on the opening surface and the coarse dust filter functions as an air filter, so that an increase in ventilation resistance is avoided. In this way, the air cleaning function is realized only when necessary, so that the air conditioner can improve the cleanliness of the airflow while suppressing an increase in ventilation resistance.

JP, 2016-183794, A

However, the air conditioner of Patent Document 1 does not disclose any control technology or the like when executing the air cleaning function.

The present invention solves the above conventional problems, and an object of the present invention is to provide an air conditioner having an air cleaning function with high usability by performing appropriate control.

In order to solve the conventional problems, the air conditioner of the present invention has a suction port, a fan that sucks air from the suction port, an air outlet that blows out the air sucked from the suction port , and the suction port. A heat exchanger for exchanging heat with the sucked air, an air filter which is a dust filter for capturing a relatively large amount of dust, and an air filter which is at least partially arcuate or curved. Air purifying filter, which is a filter intended to capture fine particles that pass through, a moving device that moves the arrangement position of the air purifying filter, a human detection sensor that detects the presence or absence of a person, and a control device. And the air purifying filter and the air filter are formed as separate bodies, and do not cover an air flow path which is a flow path of air sucked in or sucked in from the suction port. When the human detection sensor detects the presence of a person, the moving device is configured such that the air cleaning filter includes the fan, the heat exchanger, and the air on the upstream side of the air filter. The present invention is characterized in that the flow path is covered with the shape as it is, without being deformed, so as to cover the flow path .

According to this, when the human detection sensor detects the presence of a person, the moving device moves the air cleaning filter to a position where it is sucked from the suction port or the sucked air passes through the air cleaning filter. By doing so, the air purifying function can be automatically activated when the user is indoors, so that the user can feel a sense of cleanliness and the air purifying function with high usability can be provided. A harmony machine can be provided.

According to the present invention, it is possible to provide an air conditioner having an air purifying function with high usability by performing appropriate control.

1 is a longitudinal sectional view of an indoor unit when an air-cleaning operation mode of an air conditioner according to Embodiment 1 of the present invention is not being executed Vertical sectional view of the indoor unit when the air-cleaning operation mode of the air conditioner is being executed

A first aspect of the present invention is a suction port, a fan that sucks air from the suction port, a blowout port from which air sucked from the suction port blows out, and a heat exchanger that exchanges heat with the air sucked from the suction port. And an air filter which is a dust filter intended to capture relatively large dust, and at least a part having an arc shape or a curved shape to capture fine particles that pass through the air filter. An air purifying filter that is a target filter, a moving device that moves the arrangement position of the air purifying filter, a person detection sensor that detects the presence or absence of a person, and a control device, and the air purifying filter, The human detection sensor is formed as a separate body from the air filter, and is sucked from the suction port, or the air purifying filter that does not cover an air flow path that is a flow path of sucked air, When detecting the presence of a person, the moving device deforms the shape so that the air cleaning filter covers the fan, the heat exchanger, and the air flow path on the upstream side of the air filter. The air conditioner is characterized in that the air conditioner is moved without changing its shape as it is and arranged.

According to this, when the human detection sensor detects the presence of a person, the moving device moves the air cleaning filter to a position where it is sucked from the suction port or the sucked air passes through the air cleaning filter. By doing so, the air purifying function can be automatically activated when the user is indoors, so that the user can feel a sense of cleanliness and the air purifying function with high usability can be provided. A harmony machine can be provided.

In a second aspect of the present invention, in particular, in the first aspect of the invention, when the person detection sensor does not detect a person, the moving device is sucked from the suction port, or the sucked air is the air purifier. The air cleaning filter is arranged at a position where it does not pass through the filter.

According to this, when the user is not in the room, the air cleaning function is not automatically activated, so that energy consumption and filter replacement frequency are suppressed, and an air conditioner equipped with a highly usable air cleaning function is provided. Can be provided.

A third aspect of the invention is, in particular, in the first or second aspect of the invention, further comprising dust detection means, and when the dust detection value of the dust detection means is equal to or greater than a predetermined value, the moving device sucks in from the suction port. The air purifying filter is arranged at a position where the sucked or sucked air passes through the air purifying filter.

According to this, when the human detection sensor detects the presence of a person, and when there is a lot of dust in the room, the air cleaning function is automatically enabled, so that the user feels clean. It is possible to provide an air conditioner having a highly usable air cleaning function.

In a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the moving device includes the dust detection unit, and when the dust detection value of the dust detection unit is less than a predetermined value, the moving device includes the suction unit. It is characterized in that the air cleaning filter is arranged at a position where air sucked in through the mouth or sucked in does not pass through the air cleaning filter.

According to this, when the amount of dust or the like is small in the room, the air cleaning function is automatically terminated, so that it is possible to provide an air conditioner having an air cleaning function with high usability.

In a fifth aspect of the present invention, in any one of the first to fourth aspects of the invention, the moving device is arranged such that the air purifying filter is disposed at a position where the moving device is sucked in from the suction port or the sucked air passes through. After a predetermined time from the start, the moving device is characterized in that the air cleaning filter is arranged at a position where the air sucked from the suction port or the sucked air does not pass through the air cleaning filter. ..

According to this, since the air cleaning function is automatically activated and then the air cleaning function is automatically terminated after a predetermined time, it is possible to provide an air conditioner having a highly usable air cleaning function.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to this embodiment.

(Embodiment 1)
1 and 2 are longitudinal sectional views of an indoor unit of an air conditioner according to the first embodiment.

The air conditioner according to the present embodiment includes an indoor unit and an outdoor unit. The indoor unit and the outdoor unit are connected by a refrigerant pipe and control wiring, and the indoor unit and the outdoor unit form a heat pump. The outdoor unit is provided with components constituting a heat pump such as a compressor (not shown), an outdoor heat exchanger (not shown), a pressure reducing device (not shown), and an outdoor fan (not shown). The indoor unit is attached to the wall surface in the room. A control device (not shown) arranged in the indoor unit and the outdoor unit communicates with each other via control wiring.

The indoor unit of the air conditioner according to the present embodiment includes a main body 1 that forms an inlet 11 and an outlet 12, and a front panel 2 provided on the front surface of the main body 1. The suction port 11 is formed on the upper surface of the main body 1, and the air outlet 12 is formed on the lower surface of the main body 1. The rear surface 13 of the body 1 is attached to the wall surface. Inside the main body 1, a fan 20 that sucks air from the suction port 11 and a heat exchanger that is a device that constitutes a heat pump and exchanges heat with the air sucked from the suction port 11 are provided.

A cross-flow fan is suitable for the fan 20. The fan 20 has a fan motor connected to either of the left and right rotary shafts (not shown). A downstream air flow path 40 extending from the downstream side of the fan 20 to the upstream side of the air outlet 12 includes a rear guider 41 arranged downstream of the fan 20 and guiding an air flow, and a stabilizer 42 arranged opposite to the rear guider 41. , And both side walls (not shown) of the main body 1.

The air outlet 12 is provided with a vertical airflow direction changing blade 51 and a horizontal airflow direction changing blade 52. The left/right wind direction changing blade 52 is arranged on the upstream side of the up/down wind direction changing blade 51. The up-down wind direction changing vane 51 opens and closes the air outlet 12 to change the blowing of air in the up-down direction. The left and right wind direction changing blades 52 change the blowing of air in the left and right directions.

The air flow path 60 is a flow path of air sucked from the suction port 11 or sucked from the suction port 11 on the upstream side of the fan 20. The heat exchanger 30, the air filter 70, and the air cleaning filter 80 are arranged in a flow path of the air sucked from the suction port 11 in the air flow path 60. The air cleaning filter 80 is formed separately from the air filter 70.

The air filter 70 is a dust filter for capturing relatively large dust. On the other hand, the air cleaning filter 80 has a ventilation resistance larger than that of the air filter 70, and is a filter intended to capture fine particles that pass through the air filter 70, and is preferably a pleated type or a non-woven type.

The moving device 90 moves the position where the air cleaning filter 80 is arranged, without changing the shape of the air cleaning filter 80, in the same shape as it is arranged. The moving device 90 is composed of, for example, a motor 91 and a gear 92. The gear 92 is engaged with a rack 81 formed on the outer frame of the air cleaning filter 80, and the motor 91 rotates the gear 92 to rotate the air cleaning filter 80. To rotate.

By moving the arrangement position of the air cleaning filter 80 without deforming the shape of the air cleaning filter 80, the deterioration of the air cleaning filter 80 can be prevented. At least a part of the air purification filter 80 has an arc shape or a curved shape. By making at least a part of the air cleaning filter 80 arcuate or curved, the air cleaning filter 80 can be arranged in a limited space with good air cleaning efficiency, and the moving device 90 is simply configured. be able to.

The air cleaning filter 80 is arranged in the air flow path 60 on the upstream side of the air filter 70. By arranging the air cleaning filter 80 in the air flow passage 60 on the upstream side of the air filter 70, as compared with the case where the air cleaning filter 80 is arranged in the air flow passage 60 between the air filter 70 and the heat exchanger 30. As a result, it is possible to prevent the performance of the air purification filter 80 from deteriorating due to dew condensation during the cooling operation.

The moving device 90 is preferably arranged in the air flow path 60 of the flow path of the air sucked from the suction port 11 on the upstream side of the air filter 70. By disposing the moving device 90 in the air flow passage 60 of the air sucked from the suction port 11 on the upstream side of the air filter 70, the moving device 90 is provided between the air filter 70 and the heat exchanger 30. Compared with the case of arranging in the air flow path 60, it is possible to reduce the influence of dew condensation on the moving device 90 during the cooling operation, and it is possible to prevent an increase in ventilation resistance due to the moving device 90. It is also possible to arrange the air cleaning filter 80 in the air flow passage 60 upstream of the air filter 70 and the moving device 90 in the air flow passage 60 between the air filter 70 and the heat exchanger 30.

In the air conditioner according to the present embodiment, the air sucked from the suction port 11 does not pass through the air cleaning filter 80, but is heat-exchanged by the heat exchanger 30 by driving the compressor (not shown), and cool air or The air-conditioning operation mode having at least one of the cooling operation and the heating operation, which becomes hot air and blows out from the outlet 12, and the air sucked from the suction port 11 or the air sucked from the suction port 11 are heat exchangers. The air-cleaning operation mode is an air-cleaning operation in which heat is not exchanged by 30 and passes through the air-cleaning filter 80 and is blown out from the outlet 12.

The air conditioner according to the present embodiment includes an operating device 100 that allows the user to instruct the execution of the air conditioning operation mode and the air-cleaning operation mode and also switch between these operations.

The operation device 100 includes an operation switch 101 for instructing a cooling operation, an operation switch 102 for instructing a heating operation, and an operation switch 103 for instructing an air cleaning operation.

The air conditioner according to the present embodiment includes a dust detection sensor 110 that detects at least the presence or absence of dust contained in the air. Furthermore, the air conditioner according to the present embodiment includes a person detection sensor 111 that detects the presence or absence of a person. The human detection sensor 111 is formed by an infrared sensor, but may have another configuration as long as it has a function of detecting the presence or absence of a person in the room.

That is, in the air conditioner according to the present embodiment, the user instructs the operation switch 103 for instructing the air cleaning operation to start the execution of the air-cleaning operation mode, and the human detection sensor 111 detects the presence of a person. If there is dust in the room (the detection value of the dust detection sensor 110 is a predetermined value or more), the execution condition of the air-cleaning operation mode is satisfied, and the air stored outside the air flow path 60 is satisfied. The moving device 90 moves the air cleaning filter 80 to a position where the cleaning filter 80 is sucked in from the suction port or where the sucked air passes, that is, the air flow path 60, and execution of the air-cleaning operation mode is started. However, it is configured to enable the air cleaning function.

When the human detection sensor 111 no longer detects a person, the moving device is moved to a position where the air sucked from the suction port 11 or the sucked air does not substantially pass through the air cleaning filter 80, that is, outside the air flow path 60. 90 is the structure which returns the air purifying filter 80.

If the detection value of the dust detection sensor 110 changes to less than a predetermined value before the human detection sensor 111 stops detecting a person, or if a predetermined time elapses from the start of execution of the air-cleaning operation mode, further use When the person instructs the operation switch 103 to stop the execution of the air-cleaning operation mode, the position where the air sucked from the suction port 11 or the sucked air does not substantially pass through the air cleaning filter 80, that is, the air flow path 60 The moving device 90 returns the air cleaning filter 80 to the outside.

Further, the set rotation speed of the fan 20 in the air-cleaning operation mode is set to be larger than at least the minimum set rotation speed of the fan 20 in the air conditioning operation mode. For example, when the fan 20 in the first operation mode can be changed to "low", "medium" and "strong" rotation speeds, the set rotation speed of the fan 20 in the second operation mode is at least "medium" rotation speed. It may be a number, or a rotation speed higher than the "weak" rotation speed and lower than the "medium" rotation speed.

In this way, the set rotation speed of the fan 20 in the air-cleaning operation mode is set to be higher than at least the minimum set rotation speed of the fan 20 in the air conditioning operation mode, so that the ventilation resistance of the air cleaning filter 80 increases, so It is possible to prevent a decrease in the amount of air blown out of and to secure an amount of air that can sufficiently exert the air cleaning function.

The operation of the air conditioner configured as above will be described below.

FIG. 1 is a vertical cross-sectional view of the indoor unit when the air-cleaning operation mode of the air conditioner is not being executed. This is a diagram showing a state when the air-cleaning operation mode is not executed and only the air conditioning operation mode is executed.

When the air-cleaning operation mode is not executed, the air purification filter 80 is housed inside the main body 1, that is, outside the air flow path 60. In the housed state, the air purification filter 80 is arranged inside the front panel 2, and the gear 92 is located on the upper end side of the air purification filter 80.

Therefore, the air purification filter 80 does not cover the suction port 11 on the upstream side of the air filter 70, that is, the air flow path 60. In this state, the air cleaning function is not effective. Note that the case where the air cleaning function is not effective includes the case where only a small amount of the air cleaning filter 80 covers the air flow path 60.

FIG. 2 is a vertical cross-sectional view of the indoor unit when the air-conditioning operation mode of the air conditioner is being executed.

In FIG. 2, the entire air cleaning filter 80 covers the suction port 11 on the upstream side of the air filter 70, that is, the air flow path 60. In the state of FIG. 2, the gear 92 is located on the lower end side of the air cleaning filter 80.

At the start of execution of the air-cleaning operation mode, by rotating the motor 91 in the forward direction, the air cleaning filter 80 rotates from the state of FIG. 1 to the state of FIG. The placement position moves according to the shape. That is, the air cleaning filter 80 is arranged and moved in the direction in which the flow passage area covering the suction port 11, that is, the air flow passage 60 is increased.

Further, at the end of the execution of the air-cleaning operation mode, the air cleaning filter 80 is rotated from the state of FIG. 2 to the state of FIG. 1 by rotating the motor 91 in the reverse direction, and the shape is deformed. Instead, the placement position moves with the shape as it is placed. In other words, the air cleaning filter 80 is arranged and moved in the direction in which the suction port 11, that is, the flow passage area that covers the air flow passage 60 becomes smaller.

If the execution conditions of the air-cleaning operation mode are satisfied during execution of the air-conditioning operation mode, the air-conditioning operation mode and the air-cleaning operation mode are executed at the same time, and the indoor unit configuration as shown in FIG. 2 is obtained.

Furthermore, the operation switch 103 for instructing the air cleaning operation and the dust detection sensor 110 are not provided, or either the operation switch 103 for instructing the air cleaning operation or the dust detection sensor 110 is provided, and the human detection sensor 111 is When detecting the presence of a person, the moving device 90 moves the air cleaning filter 80 to the position where the air sucked in from the suction port 11 or the sucked air passes, that is, the air flow path 60, and the air purifier is emptied. When the operation mode is executed and the human detection sensor 111 does not detect a person, or when a predetermined time has elapsed from the start of execution of the air-cleaning operation mode, or the user uses the operation switch 103 to stop the execution of the air-cleaning operation mode. When instructed, or when the detection value of the dust detection sensor 110 changes to less than the predetermined value, a position where the air sucked from the suction port 11 or the sucked air does not substantially pass through the air cleaning filter 80, that is, Even when the moving device 90 returns the air cleaning filter 80 to the outside of the air flow path 60, an air conditioner having an air cleaning function with high usability can be provided.

INDUSTRIAL APPLICABILITY The air conditioner of the present invention can provide an air conditioner having an air purifying function with high usability by executing appropriate control, and therefore can be applied not only to home air conditioners but also to commercial air conditioners. ..

1 Main Body 2 Front Panel 11 Inlet 12 Outlet 13 Rear 20 Fan 30 Heat Exchanger 40 Downstream Air Flow Path 41 Rear Guider 42 Stabilizer 51 Vertical Wind Direction Changing Blade 52 Left and Right Wind Direction Changing Blade 60 Air Flow Path 70 Air Filter 80 Air Cleaning Filter 81 Rack 90 Moving device 91 Motor 92 Gear 100 Operating device 101, 102, 103 Operating switch 110 Dust detection sensor 111 Human detection sensor

Claims (5)

A suction port and a fan for sucking air from the suction port,
An air outlet that blows out the air sucked from the air inlet,
A heat exchanger for exchanging heat with the air sucked from the suction port;
An air filter, which is a filter for dust intended to capture relatively large dust, and an object to capture fine particles that pass through the air filter, at least a part of which is arcuate or curved. An air purifying filter that is a new filter ,
A moving device for moving the arrangement position of the air cleaning filter,
A person detection sensor for detecting the presence or absence of a person, and a control device,
The air cleaning filter and the air filter are formed as separate bodies,
The air purifying filter that does not cover the air passage that is the passage of the sucked air, or the sucked air,
When the human detection sensor detects the presence of a person,
In the moving device, the air purifying filter is arranged as it is without changing the shape so as to cover the fan, the heat exchanger, and the air flow path on the upstream side of the air filter. An air conditioner characterized by being moved and placed. When the human detection sensor does not detect a person, the moving device disposes the air cleaning filter at a position where the air is sucked from the suction port or the sucked air does not pass through the air cleaning filter. The air conditioner according to claim 1, wherein: A position where the moving device is equipped with dust detection means, and when the detection value of dust of the dust detection means is greater than or equal to a predetermined value, the moving device is sucked from the suction port, or the sucked air passes through the air cleaning filter. The air conditioner according to claim 1 or 2, wherein the air cleaning filter is disposed in the air conditioner. When the detection value of dust of the dust detection means is less than a predetermined value, the moving device is sucked from the suction port, or a position where the sucked air does not pass through the air cleaning filter. The air conditioner according to any one of claims 1 to 3, wherein the air cleaning filter is arranged in the air conditioner. The moving device is sucked from the suction port, or, after a predetermined time after placing the air purification filter at a position where the sucked air passes, the moving device is sucked from the suction port, or The air conditioner according to any one of claims 1 to 4, wherein the air cleaning filter is arranged at a position where sucked air does not pass through the air cleaning filter.

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