JPH06129673A - Ventilating air-conditioning apparatus - Google Patents

Abstract

PURPOSE:To conduct a control in accordance with the use of each zone and an air-conditioning load and to reduce power consumption by controlling the amount of operation of a fan motor for indoor ventilation in gearing with opening and closing motions of dampers. CONSTITUTION:Outdoor air is sucked by a fan motor 12b for ventilation, sent into the main body 1 of an apparatus and passed through a total enthalpy heat exchanger 2 and a coil 3 for heating and cooling, so as to be warm or cool air. The inside of a house is divided into two zones and one zone is supplied with the cool or warm air, by a fan motor 4 for indoor ventilation, which is sent into a room from a draft grille 8a to 8d, through a duct 6a for ventilation. The other zone is supplied with the cool or warm air, by a fan motor 5 for indoor ventilation, which is sent into the room from damper devices 9a to 9d, through a duct 6b for ventilation. The damper devices 9a to 9d are controlled to be opened and closed by air-conditioning temperature controllers 10a to 10d respectively and signals of the air-conditioning temperature controllers 10a to 10d are sent to a control circuit 11. A blower motor 5 is controlled by the control circuit 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation air conditioner.

[0002]

2. Description of the Related Art FIG. 8 is a schematic view of a house in which a conventional ventilation air conditioner disclosed in Japanese Patent Laid-Open No. 3-105136 is installed. In FIG. 8, 1 is a ventilation air conditioner main body, 6 is a ventilation duct, 7a to 7d are ventilation ducts, 8a to 8e are outlet grills, and 13a to 13e are return air grills.

Although the conventional ventilation air conditioner is constructed as described above, the outside air is taken into the ventilation air conditioner body 1 from the ventilation duct 7a connected to the ventilation air conditioner body 1 during operation.
After exchanging heat with the ventilation air-conditioning apparatus main body 1, hot air or cold air is supplied to each room through the ventilation duct 6 and the blowout grills 8a to 8e attached to the ends thereof. Then, the air in the room is sucked in from the return air grills 13a to 13e, passes through the ventilation ducts 7b and 7c, and the ventilation air conditioner body 1
And is discharged to the outside through the ventilation duct 7d.

FIG. 7 shows a conventional example similar to FIG. 8, in which the outside air is taken into the ventilation air conditioner body 1 through the ventilation duct 7a connected to the ventilation air conditioner body 1 and heat is exchanged in the ventilation air conditioner body 1. After that, hot air or cold air is blown into the duct 6
After passing through a to 6b, it is supplied to each room from the blowout grills 8a to 8f attached to the ends thereof. Then, the air in the room passes through the corridor through the door and is sucked into the ventilation air conditioner main body 1 and at the same time, is sucked from the return air grille 13 and sent to the ventilation air conditioner main body 1 through the ventilation duct 7b. It is discharged to the outside of the room via the duct 7c. Further, in the air conditioning control of the ventilation air conditioner main body 1, the temperature of the return air in the room is detected by the temperature sensor on the temperature controller arranged in the corridor or the like, and the entire house is controlled by the temperature controller.

[0005]

Since the conventional ventilation air conditioner is constructed as described above, it is possible to control the air conditioning with the house as one zone, and it is also possible to set the temperature of each room individually. There is a problem that the control suitable for the air conditioning load in the room cannot be performed. Therefore, even if there is an unmanned room, the air conditioning in this room cannot be stopped and power consumption is wasted. In addition, there is a problem that ventilation is not performed when the grill is closed, and ventilation is apt to be insufficient in a highly airtight and highly insulated house.

The present invention has been made in order to solve such a problem, and divides the interior of the house into a plurality of zones and controls the air conditioning according to the purpose of each zone and the air conditioning load (individual air conditioning control of the room, etc.). In addition, the purpose is to stop air conditioning in private rooms that do not require air conditioning and reduce power consumption. In addition, the purpose of individual air conditioning control is to control so that the amount of air blown in the room does not change at all times so that the user can spend comfortably. In addition, when installing a ventilation air conditioner, provide a ventilation air conditioner body with excellent workability so that a ventilation duct with a damper device can be connected to any of the ventilation air conditioner body ventilation openings depending on the zone of the house. It is an object. Another object of the present invention is to provide a damper device that allows constant ventilation in a room with the damper closed.

[0007]

A ventilation air conditioner according to the present invention includes a ventilation air conditioner main body, an exhaust passage and an air supply passage formed in the main body, which are independent of each other, and the exhaust passage and the air supply passage. A total heat exchanger for connecting and exchanging heat between the exhaust air and the air introduced from the outside, and a heating / cooling coil provided in the ventilation air conditioner body for heating or cooling the heat-exchanged introduced air. A plurality of indoor blower fan motors provided in the ventilation air conditioner main body for sending heated or cooled air to the room; a ventilation duct having one end connected to the exhaust passage and the air supply passage; A plurality of air-blowing ducts, one end of which is connected to air-blowing ports respectively corresponding to the air-blowing fan motors of the air-conditioning apparatus main body to guide the air sent from the indoor air-blowing fan motors into the room, A damper device having a damper for opening and closing operation in response to the room temperature is disposed in a part of the air duct of the blower duct, it is provided with a control unit for controlling the opening and closing operation of the damper.

A ventilation air conditioner according to another invention,
The interior of the house is divided into a plurality of zones according to the use, and the duct for ventilation or the duct for ventilation having a damper device is selected and connected for each zone.

A ventilation air conditioner according to another invention,
A blower duct provided with the damper device can be attached to any of a plurality of blower ports, and the blower fan corresponding to the blower port with the blower duct and the opening / closing operation of the damper device are interlocked with each other. It is provided with a switching means for switching.

A ventilation air conditioner according to another invention,
Even when the damper is closed, the damper device is provided with an air volume adjusting means for supplying a small amount of outside air.

A ventilation air conditioner according to another invention,
The ventilation air conditioner main body, the exhaust passage and the air supply passage formed in the main body, which are independent of each other, and the heat exchange between the exhaust air and the air introduced from the outside by connecting to the exhaust passage and the air supply passage. For total heat exchanger, the heating and cooling coil provided in the ventilation air-conditioning apparatus main body to heat or cool the heat-exchanged introduced air, and the heating or cooling air provided in the ventilation air-conditioning apparatus main body, A plurality of indoor blower fan motors to be sent indoors, a ventilation duct whose one end is connected to the exhaust passage and the air supply passage, and one end to a blower port respectively corresponding to the blower fan motor of the ventilation air conditioner body. A plurality of air-blowing ducts that are connected to guide the air sent from the indoor air-blowing fan motor to the room and a part of the plural air-blowing ducts that are arranged in the air-blowing ducts and that respond to the room temperature. And a damper device having a damper that opens and closes, and divides the interior of the house into a plurality of application-specific zones, and selects and connects the blower duct or the blower duct having the damper device for each zone. It is a thing.

[0012]

In the ventilation air conditioner according to the present invention, the opening / closing (only opening or closing) of the damper of the corresponding damper device is controlled by the individually installed air conditioning temperature controller,
When the damper is open, air is sent to each compartment, and when it is closed, no air is sent. In this case, the amount of air blown from the indoor blower fan motor is adjusted based on the number of open dampers so that the air conditioning in the room other than the room where the damper is closed does not change.

Further, in the ventilation air conditioner according to another invention, a ventilation duct equipped with a grill is disposed in a zone that requires constant air conditioning, such as a zone shared by families such as a living room in a house or a dining room. As a result, the air from the fan motor for blowing air is constantly supplied to each room in the common zone. Also,
In a zone where you want to individually air-condition each room, such as a zone used as a so-called private room such as a bedroom or a study, install a ventilation duct equipped with a damper device in the zone and install the damper device in the room that needs air conditioning. By opening the damper, the air conditioning of the room is controlled by the air from the fan motor for blowing.
Further, in a room that is not used, the air conditioning control of the room is stopped by closing the damper.

Further, by connecting one end of the blower duct having the damper device to the blower port of the air conditioner main body and selecting with a changeover switch, it is arranged at a position facing the blower duct having the damper device. The indoor blower fan motor is connected to the air conditioning temperature controller that controls the damper device. As a result, the open / close signal from each damper device enters the control circuit via the air conditioning temperature controller, and controls the air volume of the connected indoor fan motor by switching.

Further, the damper device used for the control is
By providing a small blower port in addition to the ventilation port of the damper, a small amount of outside air is supplied from this blower port when the damper is fully closed. By adjusting the size of the blower opening at the initial stage, the amount of leaked air can be adjusted.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic diagram of a system showing an embodiment of the present invention. In FIG. 1, 1 is a ventilation / air-conditioning apparatus main body, 2 is an exhaust air supply passage and an air supply passage which are independent of each other and cross each other. A total heat exchanger arranged in the ventilation air conditioner 1 for exchanging heat between the air and the air introduced from the outside, and 3 in the ventilation air conditioner 1 for heating or cooling the heat-exchanged introduced air. Heating and cooling coil (heat exchanger),
Reference numeral 5 denotes a fan motor for indoor ventilation, which is arranged in the ventilation air conditioner 1 for sending the heated or cooled air to the room.
Is a control circuit arranged in the ventilation air conditioner 1, 6a, 6b
Is a duct for ventilation connected to the ventilation air conditioner 1, 7a-
7c is a ventilation duct connected to the inside of the ventilation air conditioner 1, 8
Reference numerals a to 8d are blow grills attached to the tip of the air duct 6a, 9a to 9d are damper devices attached to the tip of the air duct 6b, and 10a to 10d individually control the damper devices 9a to 9d. Air conditioning temperature controller,
Reference numeral 11 is a control circuit for integrally controlling the air conditioning temperature controller, and 12a and 12b are ventilation ducts 7b and 7a, respectively.
A ventilation fan motor, 13 is a return air grill attached to the tip of the ventilation duct 7b.

Next, the operation of the configuration of FIG. 1 will be described. In FIG. 1, the outside air is sucked in by the ventilation fan motor 12b, is sent to the ventilation air-conditioning apparatus main body 1 through the ventilation duct 7b, passes through the total heat exchanger 2, and is brought close to the room temperature. After being mixed with, it passes through the heating / cooling coil 3 and becomes hot air or cold air. Further, the inside of the house is divided into two zones, and one zone is supplied with cool / hot air by the indoor blower fan motor 4 and is supplied into the room from the blowout grills 8a to 8d through the blower duct 6a. The other zone is supplied with cold / hot air by the indoor blower fan motor 5 and is supplied indoors from the damper devices 9a to 9d through the blower duct 6b. Damper device 9a
9d are air conditioning temperature controllers 10a to 10d, respectively.
Is controlled by the air conditioning temperature controller 10a-
The signal of 10d is sent to the control circuit 11. Then, the blower fan motor 5 is controlled by the control circuit 11. In this case, as shown in FIG. 2, among the dampers 9a to 9d, for example, when only one damper is open, weak operation is performed, when two dampers are open, medium operation is performed, and when fully open, strong operation is controlled.

The number of opened dampers in weak operation, medium operation, and strong operation increases in this order, but there is no particular limitation. That is, for example, there is a method of controlling weak operation when two dampers are open, medium operation when two dampers are open, and strong operation when fully open. There is also a method of controlling the air volume by adjusting the opening of the damper. That is, for example, when the opening of the damper is small, weak operation, when the opening is medium, medium operation,
There is also a method of controlling to strong operation when the opening is fully open. It should be noted that here, the description is made in three stages of the weak driving, the medium driving, and the strong driving, but it goes without saying that there is no limitation in this stage.

A part of the indoor air is used for the return air grill 13.
From the ventilation fan motor 12a, through the ventilation duct 7b, into the ventilation air-conditioning apparatus main body 1, passes through the total heat exchanger 2 and exchanges heat with the air introduced from the outside, and then the ventilation duct. After 7c, it is discharged outside the room.
A part of the other indoor air is sucked by the indoor blower fan motors 4 and 5 from the opening of the ventilation air conditioner body 1, mixed with the outside air that has passed through the total heat exchanger 2, and passes through the heating and cooling coil 3. Then, the air is supplied to the room again by the indoor blower fan motors 4 and 5. FIG. 6 is an installation example of a ventilation air conditioner. Here, the whole house is Western-style room 1, Western-style room 2,
It is divided into private rooms such as Japanese-style rooms and common areas such as living room, dining room and kitchen. Ventilation and air conditioner main unit 1 during operation
The outside air is taken into the ventilation air-conditioning apparatus main body 1 from the ventilation duct 7a connected to the ventilation air-conditioning apparatus main body 1, heat exchange is performed in the ventilation air-conditioning apparatus main body 1, and hot air or cold air passes from the ventilation duct 6a through the blowing grilles 8a to 8c to the common zone. Is supplied to each room. On the other hand, hot air or cold air is blown into the private room zone 6
It is supplied to the room from the damper devices 9a to 9c via b.

Further, the changeover switch in FIG. 3 shows another example of the invention, and when connecting the ventilation ducts 6a, 6b and the ventilation air conditioner main body 1 in FIG. As a measure against the construction problem, it can be connected with the opening and closing of the dampers of the damper devices 9a to 9d regardless of whether the indoor fan motor 4 or the indoor fan motor 5 is connected. For example, in the example of FIG. 1, the air blow duct 6a is connected to the indoor air blow fan motor 4, and the air blow duct 6b is connected to the indoor air blow fan motor 5, but the air blow duct 6a is used for indoor air blow. The fan 9 is connected to the fan motor 5, the duct 6b for blowing air is connected to the fan motor 4 for blowing indoors, and the dampers 9a to 9d are switched so that the fan motor 4 for blowing indoors can be interlocked. FIG. 3 shows a connection circuit of the damper device and the indoor blower fan motor by the changeover switch. In FIG. 3, the control circuit 11 includes a damper opening number determination circuit 113, a changeover switch 112, and an indoor blower fan motor. An air volume adjusting circuit 111 for adjusting the air volume is provided. Each damper device is connected to the indoor blower fan motor 4. Here, when the switch is switched, each damper device is connected to the indoor blower fan motor 5. As a result, the air volume of the indoor blower fan motor 5 is adjusted by the air volume adjusting circuit according to the number of opened dampers of each damper device.

FIGS. 4 and 5 are views showing an embodiment of a damper device used in a ventilation air conditioner. In the drawing, hot air or cold air from the duct connection port 102 is applied to the damper device 10.
1 and the damper 103 is opened, the damper 10
Cold and warm air is sent to the room through the opening of 3. Even when the damper is closed, it is possible to constantly perform ventilation by lowering the rotation speed of the indoor blower fan motor and supplying about 20% of the fully open air volume to the room from another air volume adjusting means 104. Here, the air volume adjusting means is composed of a small amount of ventilation port and a slit 105 separately provided adjacent to the opening of the damper. The air volume of 20% is an example, and the value is not limited to this. If all the dampers are closed,
The air volume can be secured by performing weak operation.

[0022]

As described above, according to the present invention, the ventilation air conditioner main body, the exhaust passage and the air supply passage formed in the main body, which are independent of each other, and the exhaust passage and the air supply passage are connected. A total heat exchanger for exchanging heat between the exhaust air and the air introduced from the outside, and a heating cooling coil for heating or cooling the heat exchanged introduced air provided in the ventilation air conditioner main body. A plurality of indoor blower fan motors provided in the ventilation air conditioner main body for sending heated or cooled air to the room; a ventilation duct having one end connected to the exhaust passage and the air supply passage; A plurality of air ducts, one end of which is connected to air outlets respectively corresponding to the fan motors of the apparatus main body, for guiding the air sent from the indoor air fan motors into the room;
A damper device having a damper that is arranged in a part of the blower ducts among the plurality of blower ducts and that opens and closes in response to the room temperature, and a control unit that controls the opening and closing actions of the dampers are installed. In the air duct provided with the damper, the air volume of the indoor air fan does not change by controlling the air volume of the indoor air fan motor in conjunction with the opening / closing operation of the damper, so that the room can be comfortably used.

According to another invention, it is possible to divide the interior of the house into a plurality of zones according to usage and perform air conditioning control (such as air conditioning control of a private room) according to the usage of each zone and the air conditioning load. . In addition, in a private room that does not require air conditioning, the damper is closed to adjust the amount of air blown by the fan motor for blowing air indoors so that the power consumption can be reduced.

According to another aspect of the invention, there is provided a changeover switch capable of attaching one end of the air blow duct equipped with the damper device to any of the air blow ports of the ventilation air conditioner main body, and an air flow rate adjusting circuit for the air blow fan motor. By providing the ventilation air conditioning system main body, there is an effect that workability of duct piping of the ventilation air conditioning system main unit is improved.

Further, according to another invention, by providing the damper device with an air volume adjusting means for supplying a small amount of outside air even when the damper is closed, there is an effect that constant ventilation is possible.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a system of a ventilation air conditioner according to an embodiment of the present invention.

FIG. 2 is a diagram showing a relationship between the number of opened dampers and a blowing operation mode according to an embodiment of the present invention.

FIG. 3 is a schematic view showing switching of connection between a damper device and an indoor blower fan motor by a changeover switch according to another embodiment of the invention.

FIG. 4 is a plan view, a front view, and a side view of a damper device showing another embodiment of the present invention.

FIG. 5 is a view showing how the wind passes in a damper device according to another embodiment of the present invention.

FIG. 6 is a schematic view showing an installation example when a ventilation air conditioner according to an embodiment of the present invention is installed in a house.

FIG. 7 is a schematic view showing an installation example when a conventional ventilation air conditioner is installed in a house.

FIG. 8 is a construction cross-sectional view of a conventional ventilation air conditioner.

[Explanation of symbols]

 1 Ventilation and air-conditioning device main body 2 Total heat exchanger 3 Heating / cooling coil (heat exchanger) 4 Indoor blower fan motor 5 Indoor blower fan motor 6 Blower duct 6a Blower duct 6b Blower duct 7a Ventilation duct 7b Ventilation Duct 7c Ventilation duct 7d Ventilation duct 8a Air outlet grill 8b Air outlet grill 8c Air outlet grill 8d Air outlet grille 8e Air outlet grill 8f Air outlet grill 9a Damper device 9b Damper device 9c Damper device 9d Air conditioner temperature controller 10a Air conditioner temperature controller -La 10c Air conditioning temperature controller 10c Air conditioning temperature controller 10d Air conditioning temperature controller 11 Control circuit 12a Ventilation fan motor 12b Ventilation fan motor 13 Return air grill 13a Return air grill 13b Return air grill 13c Return air grill 1 d return air grill 13e return air grille 101 damper device 102 duct joint 103 damper 104 air-flow control means 105 slits 111 adjust flow rate circuit 112 changeover switch 113 damper open number discriminating circuit

Claims (5)

[Claims] 1. A ventilation air conditioner main body, an exhaust passage and an air supply passage formed in the main body, which are independent of each other, and exhaust air and air introduced from the outside, which are connected to the exhaust passage and the air supply passage. A total heat exchanger for exchanging heat between them, a heating / cooling coil provided in the ventilation air-conditioning apparatus main body for heating or cooling the heat-exchanged introduced air, and a heating / cooling coil provided in the ventilation air-conditioning apparatus main body for heating or It corresponds to a plurality of indoor blower fan motors that send cooled air to the room, a ventilation duct whose one end is connected to the exhaust passage and the air supply passage, and the blower fan motor of the ventilation air conditioner body. One end is connected to the air outlet, and a plurality of air ducts for guiding the air sent from the indoor air fan motor to the room and a part of the air ducts are provided in the air ducts. The indoor air blower fan motor includes a damper device having a damper that opens and closes in response to an indoor temperature, and a control unit that controls the opening and closing operation of the damper. A ventilation air conditioner characterized by controlling the amount of air blown. 2. The ventilation according to claim 1, wherein the interior of the house is divided into a plurality of zones according to usage, and the duct for blowing or the duct for blowing having a damper device is selected and connected for each zone. Air conditioner. 3. A blower duct in which the damper device is disposed can be attached to any of a plurality of blower ports, and a blower fan corresponding to the blower port to which the blower duct is attached and the damper device. The ventilation air conditioner according to claim 1, further comprising switching means for interlocking with the opening / closing operation of the ventilation air conditioner. 4. The ventilation air conditioner according to claim 1, wherein the damper device is provided with an air volume adjusting means for supplying a small amount of outside air even when the damper device is closed. 5. A ventilation air conditioner main body, an exhaust passage and an air supply passage formed in the main body, which are independent of each other, and exhaust air and air introduced from the outside connected to the exhaust passage and the air supply passage. A total heat exchanger for exchanging heat between them, a heating / cooling coil provided in the ventilation air-conditioning apparatus main body for heating or cooling the heat-exchanged introduced air, and a heating / cooling coil provided in the ventilation air-conditioning apparatus main body for heating or It corresponds to a plurality of indoor blower fan motors that send cooled air to the room, a ventilation duct whose one end is connected to the exhaust passage and the air supply passage, and the blower fan motor of the ventilation air conditioner body. One end is connected to the air outlet, and a plurality of air ducts for guiding the air sent from the indoor air fan motor to the room and a part of the air ducts are provided in the air ducts. A damper device having a damper that opens and closes in response to an indoor temperature is provided, and the interior of the house is divided into a plurality of application-specific zones, and the blower duct or the blower duct having the damper device is selected for each zone. Ventilation and air-conditioning system characterized by being connected to each other.