JP2001235208A - Controller for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a comfortable air conditioning by using a floor-heating unit in combination with an air-conditioning unit. SOLUTION: The controller for an air conditioner is provided with an air conditioning unit 1 which is mounted on the ceiling of a room or in the ceiling to let out air so that a room temperature reaches a first set temperature, a floor heating unit 2 provided on the floor of a room in which a heating medium circulates, and a flow controlling mechanism for controlling a flow rate of the heating medium circulating in the floor heating unit 2 so that the room temperature reaches a second set temperature. The controller outputs a signal to the unit 1 for starting an air conditioning operation before a room temperature reaches a third set temperature, and at the same time sends a signal for changing the first set temperature to the second set temperature, and outputs a signal to stop the air conditioning operation of the unit 1, when the room temperature has reached the third set temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

2. Description of the Related Art Generally, an air-conditioning unit mounted on a ceiling side of a room or on a ceiling for controlling conditioned air discharged so that the room temperature reaches a first set temperature is controlled so that the room temperature reaches the first set temperature. Independently operated air conditioning.

[0002] The floor heating unit also independently controls the circulation amount of a heat medium (for example, hot water) circulating through the floor heating unit so that the room temperature reaches the second set temperature.

As described above, the air conditioning unit and the floor heating unit are controlled independently.

[0004]

When both the air conditioning unit and the floor heating unit are operated at the same time, the rise at the start of the heating operation becomes faster, but the heating capacity becomes excessive after the room temperature reaches the set temperature. At the same time, when the floor heating unit is used, the heat of the head and feet is disturbed, and comfortable air conditioning cannot be performed.

[0005]

SUMMARY OF THE INVENTION The present invention provides an air conditioning unit mounted on a ceiling side or a ceiling of a room and controlling conditioned air discharged so that a room temperature reaches a first set temperature.
An air conditioner having a floor heating unit provided on a floor in a room and circulating a heat medium, and a flow control mechanism for controlling a flow rate of the heat medium circulating through the floor heating unit so that a room temperature reaches a second set temperature. In the control device, the control device outputs a signal for starting the air conditioning operation to the air conditioning unit before the room temperature reaches the third set temperature, and sets the first set temperature to the second set temperature.
And outputs a signal for stopping the air conditioning operation of the air conditioning unit when the room temperature reaches the third set temperature.

[0006] Further, there is a relation of first set temperature> third set temperature.

[0007] The signal is transmitted as a wireless signal.

A signal for causing the air conditioning unit to start the air conditioning operation is transmitted almost simultaneously with the start of the heating operation by the floor heating unit.

[0009] Further, a switch for enabling / disabling signal transmission is provided.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes an air conditioning unit mounted on or near a ceiling, which discharges air (conditioned air) heated / cooled / dehumidified / humidified by a built-in heat exchanger into a room by a built-in air blower. is there. Heating / cooling / dehumidification /
It may have a structure in which humidified air (conditioned air) is supplied, as long as it can control the temperature / humidity of the air and the discharge amount to the room so that the room temperature reaches the first set temperature.

Further, the indoor unit has a remote controller (not shown). The remote controller controls the first set temperature, the discharge amount of conditioned air by the blower (manual / automatic setting), and the discharge direction of conditioned air. Are set.

Reference numeral 2 denotes a floor heating unit, which is provided on the floor in the room in which the air conditioning unit 1 is provided, and circulates hot water (heat medium) supplied from a hot water heat source 3 in an internal hot water pipe to enable floor heating. Make up. The heat medium is not limited to hot water, but may be an antifreeze, a refrigerant, or the like.

The hot water heat source 3 is connected to the floor heating unit 2 in a ring shape by a hot water pipe, and is configured to circulate hot water heated to a predetermined temperature to the floor heating unit 2 by the circulation pump 4. As this hot water heat source 3, a general-purpose hot water boiler can be used. At this time, the circulation of the hot water is started at least according to a signal from the floor heating controller.
/ It is only necessary to be able to stop.

Further, the hot water heat source 3 is provided with a variable circulation amount of the hot water (variable by controlling the discharge amount of the circulation pump 4 or variable by controlling the opening degree of the variable flow valve (variable flow service is provided on the floor heating unit 2 side). Or a function (flow control mechanism) that opens and closes the on-off valve at a predetermined cycle to vary the opening duty, and a function that can change the temperature of the hot water supplied by the hot water heat source 3 by a signal.

By providing these functions, the floor heating controller (control device) 5 can respond to the circulating amount and temperature of the hot water required according to the change in the indoor heating load, so that the heating can be performed efficiently and comfortably. Is possible.

Reference numeral 6 denotes a hot water outlet, which is a connecting portion for connecting the hot water pipe of the floor heating unit 2 to the hot water pipe of the hot water heat source 3, and a signal line for transmitting a signal from the floor heating controller 5 to the hot water heat source 3. Is being relayed.

The floor heating controller 5 has a room temperature sensor for detecting the temperature of the room. The hot water heat source is set so that the room temperature detected by the sensor reaches a second set temperature (arbitrarily or automatically set by a switch). A signal for setting the operation / stop, the circulation amount of the hot water and the temperature of the supplied hot water is transmitted to the hot water heat source 3 via a signal line.

As a series of operations, when the operation is started by the floor heating controller 5, first, a signal is transmitted to the hot water heat source 3 to operate the hot water at a high temperature (about 80 degrees) and to operate the hot water supply amount at the maximum. The temperature of the hot water is changed to a low temperature (about 50 degrees) for a predetermined time (for example, 30 minutes or the room temperature reaches the second set temperature, whichever is faster) to improve the heating characteristics at the start of operation. ing.

Next, based on the room temperature and the second set temperature, control is performed such that the circulation amount of the hot water supplied from the heat source unit 3 decreases as the room temperature approaches the second set temperature. As a control method, the room temperature and the second
And a difference between the deviation and the deviation before a predetermined time is calculated based on this deviation, and a correction value (change value) of the hot water circulation amount is obtained by performing a fuzzy calculation set in advance. A signal for setting a new hot water circulation amount based on this value is transmitted to the heat source device 3. The heat source unit 3 controls the circulation amount of hot water based on this signal.

Further, the floor heating controller 5 has a function of transmitting a signal (wireless signal, wired signal, LAN signal, etc.) having a predetermined structure to the air conditioning unit 1, and enables / disables this function. It has a switch to select whether to do.

Hereinafter, an additional operation when this function is enabled by a switch will be described.

At the start of the floor heating operation, a signal for starting the supply of hot water to the hot water heat source 3 is output, and a signal for starting the heating operation and changing the first set temperature to the second set temperature is sent to the air conditioning unit 1. Transmission is performed, and the first set temperature = the second set temperature. With this signal, the air conditioning unit 1 starts the heating operation so that the room temperature detected by the air conditioning unit 1 becomes the second set temperature. In this case, the amount of hot air (conditioned air) is automatically set based on the amount of air blown by a remote controller of the air conditioning unit or the difference between room temperature and the first set temperature.

The signal transmitted from the floor heating controller 5 has, for example, the same structure and the same carrier wave as the infrared signal transmitted from the remote controller (not shown) of the air conditioning unit 1, and the structure is the same as that of the leader code DR. , A custom code DC for determining a manufacturer and a model, a data code DD including a control signal and a set value, and an end code DE.

The custom code DC of this signal is a code that recognizes the signal received by the air conditioning unit 1 as a valid signal (a custom code stored in advance in the air conditioning unit 1 or a custom code in which the preset upper bits match). There is a floor heating controller 5 in the data code DD.
, A signal indicating the start / stop of the heating operation, and a signal for changing the first set temperature to the second set temperature. Therefore, the air conditioning unit starts the heating operation at the second set temperature.

As described above, by changing the first set temperature of the air-conditioning unit 1 to the second set temperature of the floor heating unit 2, the first set temperature is set lower, and the air-conditioning unit 1 can be sufficiently cooled. It is possible to prevent the output of the heating capacity from becoming impossible.

The signal transmitted from the floor heating controller 5 is not limited to this mode, but may be any signal that allows the air conditioning unit to start and stop the second set temperature and the heating operation. As another example, the air conditioning unit 1
When the remote controller transmits a signal indicating an operation condition automatically set during automatic operation, the air conditioner performs a heating operation on this signal and replaces the signal obtained by replacing the set temperature with a second set temperature value with air conditioning. What is necessary is just to comprise so that it may transmit to the unit 1. At this time, if there is a flag indicating that this signal is a signal from the floor heating controller 5, this flag is made valid.

After starting the heating operation of the air conditioning unit 1 in this way, the floor heating controller 5 checks whether the room temperature has reached the third set value (for example, the second set value-about 2 degrees). If the room temperature has reached the third set value, a signal for stopping the heating operation is transmitted to the air conditioning unit 1 as described above, and the operation is changed to the floor heating only operation.

When the room temperature falls below the third set value (actually, a predetermined temperature differential or a time differential is set), a signal is sent to the air conditioning unit to restart the heating operation by the air conditioning unit 1 again. Send.

As described above, the floor heating controller 5
When the operation is started, the hot water heat source 3 supplies hot water to start floor heating, and at the same time, the heating operation by the air conditioning unit 1 is started. As the room temperature rises, the floor heating capacity and the air conditioning capacity of the air conditioning unit are controlled to match the air conditioning load, and when the room temperature reaches the third set value, the operation of the air conditioning unit is stopped and only the floor heating is operated. Is performed.

By using a signal having a structure that can be received by the air conditioning unit 1, the existing air conditioning unit can be used as it is.

[0031]

According to the air conditioner thus configured,
At the start of heating operation (at startup), both floor heating by the floor heating unit and heating by the air conditioning unit are performed automatically, so that the heating operation can start up quickly and the room temperature rises. In this case, only the floor heating is performed by the floor heating unit, so that the operation efficiency can be improved and the comfortable heating operation can be maintained by the head and foot heat.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a structure of a signal used in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air conditioning unit 2 Floor heating unit 3 Hot water heat source 4 Circulation pump 5 Floor heating controller

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Mitsuo Seyama 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Tsuneo Ogushi 2-chome Keihanhondori, Moriguchi-shi, Osaka 5-5 Sanyo Electric Co., Ltd. (72) Inventor Toshihiko Iwasaka 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. 3L060 AA06 CC02 DD08 EE05 EE11 EE34 3L061 BA03

Claims (5)

[Claims] 1. An air conditioning unit mounted on a ceiling side or a ceiling in a room to control conditioned air discharged so that a room temperature reaches a first set temperature, and a floor provided on a floor in the room and circulating a heat medium. In a control device for an air conditioner, comprising: a heating unit; and a flow control mechanism for controlling a flow rate of a heat medium circulating in the floor heating unit so that the room temperature reaches a second set temperature. Before the temperature reaches the third set temperature, the air conditioner unit outputs a signal for starting the air conditioning operation to the air conditioner unit, and transmits a signal for changing the first set temperature to the second set temperature, and when the room temperature reaches the third set temperature. A signal for stopping the air conditioning operation of the air conditioning unit. 2. The control device for an air conditioner according to claim 1, wherein a relationship of first set temperature> third set temperature is satisfied. 3. The control device according to claim 1, wherein the signal is transmitted as a wireless signal. 4. The control device for an air conditioner according to claim 1, wherein a signal for causing the air conditioning unit to start the air conditioning operation is transmitted almost simultaneously with the start of the heating operation by the floor heating unit. 5. The control device for an air conditioner according to claim 1, further comprising a switch for enabling / disabling transmission of the signal.