KR102591703B1 - air conditioning system - Google Patents

Abstract

The present invention relates to an indoor unit connected to an outdoor unit, sucking in indoor air, exchanging heat with it, and supplying it to the indoor space, and is placed in the upper space of the ceiling to guide air introduced from the outdoor side into the indoor room or to supply indoor air. A duct leading to the outdoor side, a diffuser connected to the duct to discharge outdoor air into the room or installed on the ceiling to suck in indoor air, and a damper disposed on the flow path connecting the duct and the diffuser to open and close the flow path. , relates to an air conditioning system including an operation panel disposed in the indoor space to control the indoor unit and the damper.

Description

air conditioning system {air conditioning system}

The present invention relates to an air conditioning system that controls the damper of an air conditioning duct using an air conditioner's remote control.

Air conditioners are installed to provide a more comfortable indoor environment for humans by discharging hot and cold air into the room, controlling the indoor temperature, and purifying the indoor air to create a comfortable indoor environment.

Generally, an air conditioner includes an indoor unit composed of a heat exchanger and installed indoors, and an outdoor unit composed of a compressor and a heat exchanger that supplies refrigerant to the indoor unit.

These air conditioners are controlled separately from an indoor unit composed of a heat exchanger and an outdoor unit composed of a compressor and a heat exchanger, and are operated by controlling the power supplied to the compressor or heat exchanger.

Additionally, the air conditioner may be connected to at least one indoor unit to the outdoor unit, and is operated in a cooling or heating mode by supplying refrigerant to the indoor unit depending on the requested operating state.

The air conditioner is operated for cooling or heating depending on the flow of refrigerant. During cooling operation, when high-temperature and high-pressure liquid refrigerant is supplied from the compressor of the outdoor unit to the indoor unit through the heat exchanger of the outdoor unit, the refrigerant expands and vaporizes in the heat exchanger of the indoor unit, thereby evaporating the surrounding air. As the air temperature drops and the indoor unit fan rotates, cold air is discharged into the room. During heating operation, when high-temperature and high-pressure gaseous refrigerant is supplied from the outdoor unit's compressor to the indoor unit, the high-temperature and high-pressure gaseous refrigerant is liquefied in the indoor unit's heat exchanger. Air warmed by the released energy is discharged into the room by the operation of the indoor fan.

Meanwhile, in the case of system air conditioners, ventilation is not possible, so they are generally combined with an electric heat exchanger (ERV) or an air conditioner that can introduce outside air.

At this time, a damper is installed in the duct that introduces outdoor air into the indoor side to control the flow of outdoor air flowing toward the indoor side.

In addition, since connecting the damper to the central controller is cumbersome and the connection work itself is expensive, most install manual dampers.

Therefore, there was a problem that the opening and closing of the damper could not be controlled and the degree of opening of the damper could not be controlled. In addition, in order to control the opening/closing or opening amount of the damper, there is a problem that it is necessary to install a separate controller for damper control and connect the controller to the damper.

KR 20-2009-0013849 (2009.10.23)

The problem to be solved by the present invention is to provide an air conditioning system that adjusts the amount of outdoor air supplied to a plurality of air conditioning targets through individual control of a plurality of dampers.

In addition, an air conditioning system is provided that controls whether the damper is opened and closed and the degree of opening by using a remote control for an indoor unit installed in an air conditioning target.

In addition, the present invention provides an air conditioning system that determines whether to start a damper from a start signal generated from a remote control for an indoor unit and performs ventilation control.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

The air conditioning system according to an embodiment of the present invention for achieving the above problem includes an indoor unit connected to an outdoor unit, sucked in, exchanges heat with indoor air, and supplied indoors to the indoor unit, and disposed in the upper space of the ceiling, and the outdoor unit is connected to the outdoor unit. A duct that guides air introduced from the side into the room or guides indoor air to the outside, a diffuser connected to the duct to discharge outdoor air into the room or installed on the ceiling to suck indoor air, the duct and the diffuser It includes a damper disposed on a connecting passage to open and close the passage, and an operation panel disposed in the indoor space to control the indoor unit and the damper.

Additionally, the interior is divided into a plurality of air conditioning objects, and the indoor unit, diffuser, damper, and operation panel are installed in each air conditioning object.

Additionally, the duct is provided to pass through the ceiling of the plurality of air conditioning objects, and each flow path is connected to the duct.

Additionally, the operation panel refers to a wired remote control installed on an indoor wall for controlling and monitoring the indoor unit.

Additionally, the damper is connected to the operation panel by wire, and the operation panel controls the on/off of the damper or the opening degree of the damper.

Additionally, it includes a second communication line connecting the indoor unit and the operation panel, and a third communication line connecting the damper and the operation panel.

Additionally, the operation panel is connected to the central controller in the control room.

Additionally, the central controller controls the operation of the indoor unit and damper.

Additionally, it includes a first communication line connecting the operation panel and the central controller.

Additionally, the plurality of operation panels and the central controller are connected in parallel.

Additionally, the operation panel controls the damper to be open when the indoor unit is turned on.

Additionally, the operation panel controls the damper to be closed when a ventilation off request occurs while the indoor unit is on and the damper is open.

Additionally, the operation panel controls the damper to be opened when a ventilation request occurs while the indoor unit is off.

In addition, it further includes a blowing fan installed in the duct to suck outdoor air into the indoor side or suck indoor air into the outdoor side.

In addition, the central controller connected to each operation panel controls the air volume of the blower fan by reflecting the ratio of the air conditioning target for which ventilation is in progress.

Embodiments of the present invention have the following effects.

First, it is possible to control the air conditioner efficiently by individually controlling the opening degree of the damper depending on the air conditioning target.

Second, by connecting the remote control for the indoor unit installed in each air conditioning target and the damper, the opening degree of the damper is individually controlled, which has the effect of reducing work and material costs.

Third, when the indoor unit is operated through the indoor unit remote control and cooling or heating starts, ventilation is automatically carried out.

Fourth, the central controller connected to the indoor remote control can control all or part of the dampers, which has the effect of enabling full or partial ventilation depending on the situation of the air conditioning target.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a diagram illustrating the configuration of a conventional air conditioning system.
Figure 2 is a diagram illustrating the configuration of an air conditioning system according to an embodiment of the present invention.
Figure 3 is a flowchart showing a control method of an air conditioning system according to an embodiment of the present invention.
Figure 4 is a flowchart showing a method of controlling the air volume of a blowing fan.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and to be understood by those skilled in the art. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

The suffixes “module” and “~part” for components used in the following description are given or used interchangeably only considering the ease of writing the specification, and do not have distinct meanings or roles in themselves.

In this specification, the names of the components are divided into first, second, etc. to distinguish them because the names of the components are the same, and the order is not necessarily limited in the following description.

1 is a diagram illustrating the configuration of a conventional air conditioning system.

Referring to Figure 1, in the case of a conventional air conditioning system, it is installed in a room divided into a plurality of air conditioning objects (R1, R2, R3, and R4).

In addition, each air conditioning target (R1, R2, R3, R4) means an independent indoor space, and on the ceiling of each air conditioning target (R1, R2, R3, R4) are indoor units (11, 12, 13, and 14), respectively. It is installed.

And, remote controls 21, 22, 23, and 24 are installed on the walls of each air conditioning object (R1, R2, R3, and R4) to control the indoor units (11, 12, 13, and 14).

Each of the remote controls 21, 22, 23, and 24 is connected to the central controller 70 through first communication lines 61, 62, 63, and 64.

And, the remote controllers 21, 22, 23, and 24 are connected to the indoor units 11, 12, 13, and 14 through second communication lines 81, 82, 83, and 84.

A duct 40 is installed on the ceiling of the air conditioning objects (R1, R2, R3, and R4).

And, the outdoor air introduced through the duct 40 is supplied indoors through the diffusers 15, 16, 17, and 18 installed on the ceiling of the air conditioning target (R1, R2, R3, and R4).

Additionally, indoor air sucked from the diffusers 15, 16, 17, and 18 may flow to the outdoors through the duct 40.

In the flow path connecting the duct 40 and the diffusers 15, 16, 17, and 18, there is flow from the duct 40 to the diffusers 15, 16, 17, and 18, or through the diffusers 15, 16, 17, and 18. Dampers (31, 32, 33, 34) are installed to control the flow of air flowing from the duct (40), and the dampers (31, 32, 33, 34) are connected to the third communication lines (51, 52, 53, It is connected to the central controller 70 through 54).

In this case, it takes a lot of time and money to install the third communication lines (51, 52, 53, 54) connecting the dampers (31, 32, 33, 34) and the central controller (70).

And, as the number of cooperation targets (R1, R2, R3, R4) increases, errors occur and work costs increase.

In addition, there is a problem of low efficiency as the ventilation of each air conditioning target (R1, R2, R3, and R4) is controlled collectively rather than individually.

In particular, there is a problem in responding to the needs of users of each air conditioning target (R1, R2, R3, R4), and ventilation is performed in some air conditioning targets that do not require ventilation, or ventilation is not performed in some air conditioning targets that require ventilation. There is also a problem.

Figure 2 is a diagram illustrating the configuration of an air conditioning system according to an embodiment of the present invention.

Referring to FIG. 2, the air conditioning system according to an embodiment of the present invention includes indoor units 110, 120, 130, and 140 connected to the outdoor unit and disposed indoors to suck indoor air, exchange heat, and supply it indoors, and an upper space of the ceiling. A duct 400 is disposed in the duct to guide air introduced from the outdoor side to the indoor side or to guide indoor air to the outdoor side, and is connected to the duct 400 to discharge outdoor air into the indoor room or to suck indoor air. It includes diffusers (150, 160, 170, 180) installed on the ceiling, and dampers (310, 320, 330, 340) disposed on the flow path connecting the duct 400 and the diffuser (150, 160, 170, 180) and opening and closing the flow path.

And, it further includes an operation panel (210, 220, 230, 240) disposed in the indoor space to control the indoor unit (110, 120, 130, 140) and the damper (310, 320, 330, 340). The operation panels 210, 220, 230, and 240 may be connected to the indoor units 110, 120, 130, and 140 and the dampers 310, 320, 330, and 340 by wire or wirelessly.

As an example, the operation panel 210, 220, 230, and 240 may mean a wired remote control installed on an indoor wall for controlling and monitoring the indoor unit 110, 120, 130, and 140.

In addition, the interior is divided into a plurality of air conditioning objects (R1, R2, R3, R4), and the indoor unit (110, 120, 130, 140), diffuser (150, 160, 170, 180), damper (310, 320, 330, 340), and operation panel (210, 220, 230, 240) are each air conditioning object (R1). ,R2,R3,R4) can be installed individually.

In addition, the duct 400 is provided to pass through the ceiling of the plurality of air conditioning objects (R1, R2, R3, and R4), and the flow path can connect the duct 400 and each of the diffusers (150, 160, 170, and 180).

In addition, the dampers (310, 320, 330, 340) are connected to the operation panels (210, 220, 230, 240) by wires, and the operation panels (210, 220, 230, 240) control the on/off of the dampers (310, 320, 330, 340) or the operation of the dampers (310, 320, 330, 340). control the opening You can.

Referring again to FIG. 2, the air conditioning system according to an embodiment of the present invention is similarly installed in a room divided into a plurality of air conditioning objects (R1, R2, R3, and R4).

In addition, each air conditioning object (R1, R2, R3, and R4) represents an independent indoor space, and indoor units (110, 120, 130, and 140) are installed on the ceiling of each air conditioning object (R1, R2, R3, and R4), respectively.

And, operation panels 210, 220, 230, and 240 are installed on the walls of each air conditioning target (R1, R2, R3, and R4) to control the indoor units (110, 120, 130, and 140).

Each of the operation panels 210, 220, 230, and 240 is connected to the central controller 700 of the control room through first communication lines 610, 620, 630, and 640.

At this time, the plurality of operation panels (210, 220, 230, 240) and the central controller 700 are connected in parallel, and therefore, the central controller 700 can control the plurality of operation panels (210, 220, 230, 240) individually or collectively. .

That is, the central controller 700 can individually or collectively control the operations of the indoor units 110, 120, 130, and 140 and dampers 310, 320, 330, and 340.

Additionally, the operation panels 210, 220, 230, and 240 are connected to the indoor units 110, 120, 130, and 140 through second communication lines 810, 820, 830, and 840.

A duct 400 is installed on the ceiling of the air conditioning objects (R1, R2, R3, and R4).

And, the outdoor air introduced through the duct 400 is supplied indoors through the diffusers 150, 160, 170, and 180 installed on the ceiling of the air conditioning target (R1, R2, R3, and R4).

Additionally, indoor air sucked from the diffusers 150, 160, 170, and 180 may flow to the outdoors through the duct 400.

In the flow path connecting the duct 400 and the diffuser (150, 160, 170, 180), there are dampers (310, 320, 330, 340) that control the flow of air flowing from the duct 400 to the diffuser (150, 160, 170, 180) or from the diffuser (150, 160, 170, 180) to the duct 40. is installed, and the dampers (310, 320, 330, 340) are connected to the operation panel (210, 220, 230, 240) through third communication lines (510, 520, 530, 540).

In the case of the present invention, the dampers (310, 320, 330, 340) and the central controller (700) are not connected, but the dampers (310, 320, 330, 340) are connected to the operation panels (210, 220, 230, 240).

In detail, a damper motor that opens or closes the dampers (310, 320, 330, 340) or adjusts the amount of opening is connected to the operation panel (210, 220, 230, 240).

As described above, when the dampers (310, 320, 330, 340) and the operation panels (210, 220, 230, 240) are connected, the dampers (310, 320, 330, 340) are opened or closed through the operation panels (210, 220, 230, 240) installed on the air conditioning objects (R1, R2, R3, R4), respectively. The amount can be adjusted.

That is, each air conditioning target (R1, R2, R3, and R4) can individually open or close the dampers (310, 320, 330, and 340) or adjust the opening amount.

And, because the dampers (310, 320, 330, 340) are connected to the operation panels (210, 220, 230, 240) instead of connecting the dampers (310, 320, 330, 340) and the central controller (700), the third communication lines (510, 520, 530, 540) can be installed more easily.

In addition, since the operation panels 210, 220, 230, and 240 are connected to the central controller 700, the dampers 310, 320, 330, and 340 of all air conditioning targets can be controlled at once, and the dampers 310, 320, 330, and 340 of some air conditioning targets can be controlled in groups.

In addition, when a cooling/heating signal is transmitted to the indoor unit 110, 120, 130, and 140 through the operation panel 210, 220, 230, and 240, an operation signal can also be transmitted to the damper 310, 320, 330, and 340 to perform ventilation.

The operation panel 210, 220, 230, and 240 can control the dampers 310, 320, 330, and 340 to be open when the indoor unit 110, 120, 130, and 140 is turned on.

At this time, the user may directly operate the operation panel 210, 220, 230, and 240 to turn on the indoor units 110, 120, 130, and 140, or the indoor unit 110, 120, 130, and 140 may be turned on remotely from the central controller 700.

In addition, the operation panel (210, 220, 230, 240) blocks the dampers (310, 320, 330, 340) when a request to turn off ventilation occurs while the indoor unit is on and the dampers (310, 320, 330, 340) are open. You can also control it to be (close).

Additionally, the operation panel 210, 220, 230, and 240 may control the opening amount of the damper 310, 320, 330, and 340 to increase or decrease when the indoor unit is turned on.

In addition, the operation panel 210, 220, 230, and 240 may control the dampers 310, 320, 330, and 340 to be open when a ventilation request occurs while the indoor unit 110, 120, 130, and 140 is turned off.

Additionally, the operation panel 210, 220, 230, and 240 may control the opening amount of the damper 310, 320, 330, and 340 to increase or decrease when the indoor unit is turned off.

In addition, it may further include a blowing fan (not shown) installed in the duct 400 to suck outdoor air into the indoor side or suck indoor air into the outdoor side.

In addition, the central controller 700 connected to each of the operation panels 210, 220, 230, and 240 can control the air volume of the blower fan by reflecting the ratio of the air conditioning target for which ventilation is in progress.

Figure 3 is a flowchart showing a control method of an air conditioning system according to an embodiment of the present invention.

Referring to FIG. 3, when the indoor unit is in a standby state, it is checked whether there is an input for cooling or heating (S11).

Also, when the user operates the operation panel 210, 220, 230, or 240, the indoor unit is turned on for cooling or heating. (S12)

Additionally, the indoor unit can be turned on at the central controller 700.

As described above, when the indoor unit is turned on, the dampers 310, 320, 330, and 340 are also opened.

At this time, the ventilation status may be displayed on the screen of the operation panel (210, 220, 230, 240).

Then, in a situation where the dampers 310, 320, 330, and 340 are opened and ventilation is in progress, it is checked whether a ventilation end input has occurred (S14).

If the user inputs the end of ventilation through the operation panel (210, 220, 230, 240), while the indoor unit is on, the dampers (310, 320, 330, 340) are blocked, and ventilation is terminated (S15).

Additionally, when the user inputs the end of cooling or heating through the operation panel 210, 220, 230, and 240, the indoor unit is turned off, the dampers 310, 320, 330, and 340 are also blocked, and ventilation is terminated (S15).

Again, referring to FIG. 3, when the indoor unit is in a standby state, it is checked whether there is an input for cooling or heating (S11).

And, when the indoor unit is in standby mode and there is no input for cooling or heating, it is checked whether there is an input for ventilation (S13).

Then, when the user operates the operation panel (210, 220, 230, and 240) and a ventilation request occurs, the dampers (310, 320, 330, and 340) are opened in the standby state (off) of the indoor unit (S16).

Additionally, the central controller 700 may open the dampers 310, 320, 330, and 340.

At this time, the ventilation status may be displayed on the screen of the operation panel (210, 220, 230, 240).

And, in a situation where the dampers 310, 320, 330, and 340 are opened and ventilation is in progress, it is checked whether a ventilation end input has occurred.

If the user inputs the end of ventilation through the operation panel 210, 220, 230, and 240, the dampers 310, 320, 330, and 340 are blocked while the indoor unit is turned on, and ventilation is terminated.

On the other hand, in step S13, if the indoor unit is in a standby state and there is no input for ventilation, the dampers 310, 320, 330, and 340 are not opened but blocked (S17).

That is, when the indoor unit is turned on, the dampers 310, 320, 330, and 340 are opened together to allow ventilation.

Then, when a separate request to terminate ventilation occurs or a request to turn off the indoor unit occurs, the dampers 310, 320, 330, and 340 are blocked and ventilation is terminated.

And, when a ventilation request occurs while the indoor unit is turned off, the dampers 310, 320, 330, and 340 are opened and ventilation proceeds.

And, when a separate ventilation termination request occurs, ventilation is terminated.

Figure 4 is a flowchart showing a method of controlling the air volume of a blowing fan.

As described above, the indoor space is divided into a plurality of air conditioning targets.

And, for each air conditioning target, ventilation may be performed individually.

Therefore, it is necessary to control the air volume of the blower fan by reflecting the ratio of the air conditioning target for which ventilation is in progress.

To do this, first, calculate the ventilation operation rate (S21).

The ventilation operation rate is calculated as the ratio of air conditioning targets in progress compared to all air conditioning targets.

An air conditioning target in which ventilation is in progress may mean an air conditioning target with the damper open.

For example, if there are 4 air conditioning targets in total and 2 of them are in progress of ventilation, the ventilation operation rate is 1/2 and can be calculated as 50%.

(Ventilation operation rate = air conditioning target with ventilation in progress ÷ total air conditioning target)

Then, the required air volume of the blowing fan is calculated. (S22)

The required air volume of the blowing fan can be calculated by reflecting the ventilation operation rate in the design air volume (maximum air volume) of the blowing fan.

For example, when the ventilation operation rate is 50%, the required air volume of the blowing fan can be calculated as half of the design air volume (maximum air volume) of the blowing fan.

(Required air volume of blowing fan = Designed air volume of blowing fan

Then, when the required air volume of the blowing fan is calculated, the blowing fan is controlled so that the air volume equal to the target is generated (S23).

Here, the blowing fan may mean an air supply fan or an exhaust fan.

In addition, the blowing fan can generate air volume to correspond to the requested air volume while adjusting the rotation speed (rpm).

Claims (15)

An indoor unit connected to the outdoor unit and disposed indoors to intake indoor air, exchange heat with it, and supply it indoors;
A duct disposed in the upper space of the ceiling to guide air introduced from the outdoor side to the indoor side or guide indoor air to the outdoor side;
A diffuser connected to the duct and installed on the ceiling to discharge outdoor air into the room or suck in indoor air;
A damper disposed on a flow path connecting the duct and the diffuser to open and close the flow path;
A control panel disposed in the indoor space to control the indoor unit and the damper,
The interior is divided into a plurality of air conditioning objects,
The indoor unit, diffuser, damper, and control panel are installed at each air conditioning target,
The operation panel is,
When the indoor unit is turned on and the damper is open,
When a ventilation off request occurs, the damper is controlled to close,
An air conditioning system that controls the damper to open when a ventilation request occurs while the indoor unit is off. delete According to clause 1,
The air conditioning system wherein the duct is provided to pass through the ceiling of the plurality of air conditioning objects, and each flow passage is connected to the duct. According to clause 1,
The operation panel is an air conditioning system that refers to a wired remote control installed on an indoor wall for controlling and monitoring the indoor unit. According to clause 1,
The damper is connected to the operation panel by a wire, and the operation panel controls the on/off of the damper or the opening degree of the damper. According to clause 1,
a second communication line connecting the indoor unit and the operation panel; and
An air conditioning system including a third communication line connecting the damper and the operation panel. According to clause 1,
The control panel is an air conditioning system connected to a central controller in a control room. According to clause 7,
An air conditioning system wherein the central controller controls operations of the indoor unit and damper. According to clause 7,
An air conditioning system including a first communication line connecting the operation panel and the central controller. According to clause 7,
An air conditioning system in which the plurality of operation panels and the central controller are connected in parallel. According to clause 1,
The operation panel is,
An air conditioning system that controls the damper to be open when the indoor unit is turned on. delete delete According to clause 1,
The air conditioning system further includes a blowing fan installed in the duct to suck outdoor air into the indoor side or suck indoor air into the outdoor side. According to clause 14,
The central controller connected to each operation panel is,
An air conditioning system that controls the air volume of the blower fan by reflecting the ratio of the air conditioning target for which ventilation is in progress.

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