JP2000130823A - Indoor heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform a comfortable heating wherein upper air layer is relatively cooler as compared with floor side air layer by executing a heating operation by using both an air conditioner and a floor heater. SOLUTION: This indoor heater performs a heating wherein upper air layer is relatively cool as compared with floor side air layer, by a method wherein an air conditioner 2 is operated for heating by using a heating target temperature T4 determined by a set temperature T3 of the air conditioner 2 and a floor temperature T1 of a floor heater 3. As the floor temperature T1 of the floor heater 3 rises, the heating target temperature T4 gradually falls lower than the set temperature T4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an indoor heating device. In particular, the present invention relates to an indoor heating device using both an air conditioner and a floor heating device.

[0002]

2. Description of the Related Art For room heating, it is common to operate an air conditioner for heating or to use a stove indoors. However, since the air conditioner is generally mounted on an upper wall or a ceiling, the upper part of the room becomes hot, and the area near the floor is hardly heated. Also, the stove is placed on the floor, but the hot air heated by the stove accumulates near the ceiling in the room and the upper part of the room becomes warm. Therefore, when using an air conditioner or a stove,
It is far from head cold foot heat which is said to be an ideal heating mode.

On the other hand, in a floor heating device that circulates hot water through a heating floor panel laid on the floor to heat the floor, the floor can be heated from the floor, so that head and foot heat can be realized. However, the floor heating device has a problem that the room temperature is hardly increased. In particular, when it is desired to warm the room when the user wakes up in winter, there is a disadvantage that it takes too much time before the room temperature increases.

Accordingly, it is common practice to use an air conditioner and a floor heating device together. However, when the air conditioner and the floor heating device are operated at the same time, the room can be rapidly heated, but on the other hand, the upper part of the room is heated by the air conditioner. There is a problem that the characteristics of are deteriorated.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a heating device that uses an air conditioner and a floor heating device in combination with a head-heating system. It is to provide a comfortable heating device for performing the following.

[0006]

An indoor heating device according to a first aspect of the present invention is an indoor heating device including a floor heating device and an air conditioner.
Means for detecting the floor temperature of the floor heating device, and means for setting a heating target temperature of the air conditioner, when the air conditioner and the floor heating device perform heating operation simultaneously, the floor of the floor heating device As the temperature rises, the heating target temperature of the air conditioner is gradually lowered from the temperature set by the setting means.

[0007] According to the room heating device of the first aspect,
Comfortable heating of head and foot heat can be performed. That is,
According to this room heating device, the room temperature can be rapidly raised at the start of the operation by simultaneously performing the heating operation of the floor heating device and the air conditioner. Moreover, as the floor temperature of the floor heating device rises, the heating target temperature of the air conditioner is gradually lowered from the temperature set by the setting means, so that the heating of the indoor air by the air conditioner is gradually weakened. Because it is possible, it is possible to heat the head and feet comfortably.

According to a second aspect of the present invention, there is provided an indoor heating device including a floor heating device and an air conditioner, wherein a means for detecting a floor temperature of the floor heating device, and a heating target of the air conditioner. Means for setting the temperature, and means for detecting the room temperature, the initial operation at the time of starting the air conditioner and the floor heating device simultaneously heating operation, the air conditioner and the floor heating device operate independently of each other, the room temperature is After reaching the set temperature set by the setting means or a temperature near the set temperature, as the floor temperature of the floor heating device increases, the heating target temperature of the air conditioner is gradually lowered from the set temperature set by the setting means. It is characterized by the following.

[0009] In the room heating apparatus according to the second aspect, the room temperature can be rapidly raised at the start of operation by simultaneously heating the floor heating apparatus and the air conditioner. Moreover, as the floor temperature of the floor heating device rises, the heating target temperature of the air conditioner is gradually lowered from the temperature set by the setting means, so that the heating of the indoor air by the air conditioner is gradually weakened. Because it is possible, it is possible to heat the head and feet comfortably.

In addition, in the room heating apparatus according to the second aspect, the air conditioner is operated independently of the floor temperature of the floor heating apparatus until the room temperature reaches the set temperature or a temperature near the set temperature. Therefore, at the start of the operation, the room temperature can be more rapidly raised to the set temperature or near the set temperature.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG. 1 is a schematic configuration diagram showing an indoor heating device 1 according to one embodiment of the present invention. The indoor heating device 1 includes an air conditioner 2 and a floor heating device. 3
It is composed of First, the outdoor unit 2a and the indoor unit 2b
The outdoor unit 2a will be described as an air conditioner 2 that performs cooling and heating by circulating a refrigerant to an indoor unit 2b in an inverter type and exchanging heat between the refrigerant and indoor air in the indoor unit 2b. The refrigerant circuit 6 includes a compressor 7, a heat exchanger 8, a capillary tube 9, and an operation switching valve 10 provided inside the outdoor unit 2a, and a heat exchanger 12 provided inside the indoor unit 2b. It is configured to be connected via a refrigerant pipe 13. Further, inside the outdoor unit 2a, a fan 11 is provided for forcibly sending outdoor air to the heat exchanger 8 to exchange heat between the outdoor air and the refrigerant in the heat exchanger 8. Similarly, inside the indoor unit 2b, a blower such as a sirocco fan for forcibly sending indoor air to the heat exchanger 12 to exchange heat between the indoor air and the refrigerant in the heat exchanger 12 is provided. A fan 15 is provided.

However, during the heating operation, the air conditioner 2
Is operated as follows. When the operation switch is turned on to operate the compressor 7, the refrigerant in the section between the compressor 7 and the capillary tube 9 (that is, the refrigerant on the indoor unit 2b side) is adiabatically compressed, and the refrigerant temperature rises. The air that has flowed in from the air intake port 14 of the indoor unit 2b is heated by depriving the heat of the refrigerant when passing through the exchanger 12, and the warmed air is blown indoors by the blower fan 15 from the outlet 16 of the indoor unit 2b. Sent out to vice versa,
The refrigerant deprived of heat when passing through the heat exchanger 12 returns to the outdoor unit 2a through the refrigerant pipe 13, passes through the capillary tube 9, undergoes adiabatic expansion, and then passes through the heat exchanger 8 of the outdoor unit 2a. Absorbs heat from the outdoor air and returns to compressor 7
Through adiabatic compression. By repeating such a circulation, heating of the room by the air conditioner 2 is performed.

A room temperature sensor 17 is provided in the air intake port 14 of the indoor unit 2b, and the detected room temperature T2 is transmitted to a room temperature control section 18 for feedback control. Further, the set temperature T3 which is the target value of the heating temperature of the indoor unit 2b can be input from the remote controller 4. In this device,
By rotating the operation switching valve 10 by 90 °, the refrigerant in the refrigerant circuit 6 can flow backward to cool the room.

Next, the configuration of the floor heating device 3 for performing floor heating in the heating floor panel 3a using hot water supplied from the hot water storage tank 5 as a heat medium will be described. The heating medium circulation circuit 19 constituting the floor heating device 3 includes a heating floor panel 3a, a hot water storage tank 5
And a pump P connected via a heat medium pipe 20. The hot water storage tank 5 has a heating medium 60-
80 ° C hot water is stored. When the pump P is operated,
The heating medium in the hot water storage tank 5 is sent to the heating floor panel 3a through the heating medium pipe 20, and the heating medium circulates in the heating floor panel 3a to perform floor heating. Heating floor panel 3
A is provided with a floor temperature sensor 21 for detecting the floor temperature (floor temperature), and transmits the floor temperature T1 detected by the floor temperature sensor 21 to the floor temperature control unit 22. The floor temperature control unit 22 performs feedback control of the floor heating device 3 so that the floor temperature T1 becomes equal to the separately set floor heating target temperature. Further, the floor temperature control unit 22 transmits the floor temperature information to the room temperature control unit 18 of the air conditioner 2.

FIG. 2 is a schematic block diagram showing the relationship among the indoor unit 2b of the air conditioner 2, the floor heating device 3, and the remote controller 4. By operating the remote controller 4, the set temperature information can be transmitted from the remote controller 4 to the indoor unit 2 b, whereby the heating or cooling target temperature can be set for the indoor unit 2 b. The floor heating device 3 transmits the floor temperature information detected by the floor surface temperature sensor 21 to the indoor unit 2b. When the air conditioner 2 and the floor heating device 3 are operated at the same time, the room temperature controller 18 of the air conditioner 2 transmits the set temperature T3 set by the remote controller 4 and the floor temperature controller 22. The heating target temperature T4 is determined from the floor temperature T1 thus obtained, and the air conditioner 2 is feedback-controlled so that the room temperature T2 transmitted from the room temperature sensor 17 becomes equal to the heating control temperature T4.

The indoor heating device of the present invention may be an indoor heating device using an air conditioner for circulating hot water instead of an air conditioner for circulating a refrigerant. Further, in this case, the hot water path of the air conditioner and the hot water path for the floor heating device may be connected in series or in parallel via a valve to integrate the hot water.

Next, the operation during simultaneous heating operation of the air conditioner 2 and the floor heating device 3 according to this embodiment will be described in detail. When the respective operation switches are turned on and the air conditioner 2 and the floor heating device 3 receive an operation start command, the operation of the air conditioner 2 and the floor heating device 3 starts immediately. At this time, the floor heating device 3 starts the heating operation at a target temperature separately set by a remote controller or the like dedicated to the floor heating device. However, since the heat capacity of the heat medium circulation circuit 19 is large, the floor heating device 3 immediately starts immediately after the heating operation is started. The floor temperature cannot be raised quickly, and the effect as indoor heating is not sufficient. That is,
At this point, the air conditioner 2 is mainly responsible for raising the indoor temperature.

On the other hand, the air conditioner 3 sets the heating target temperature T4 so as to be lower than the set temperature T3 set by the remote controller 4 by a predetermined temperature Δt determined by the floor temperature T1 received from the floor heating device 3. Is set, and the air conditioner 2 is feedback-controlled so that the room temperature T2 detected by the room temperature sensor 17 becomes equal to the heating target temperature T4.

FIG. 3 shows an example of the relationship between the bed temperature T1 and the deviation Δt = T3-T4. In the indoor heating device 1, when the air conditioner 2 and the floor heating device 3 are simultaneously operated for heating, as the floor temperature T1 of the floor heating device 3 increases, the heating target temperature T4 of the air conditioner 2 is controlled by the remote controller 4. Is gradually lower than the set temperature T3. In the case of FIG. 3, when the bed temperature T1 is 30 ° C. or more, the deviation Δt = 1 ° C., and the deviation Δt increases by 10 ° C. from that point.
It is determined that t increases by 1 ° C. That is,
The room temperature controller 18 decreases the heating target temperature T4 at a rate of 1 ° C. every time the floor temperature T1 increases by 10 ° C., and gradually lowers the heating target temperature T4 of the air conditioner 2. In this way, the heating mainly performed by the air conditioner 2 at the beginning of the heating operation of the indoor heating device 1 is gradually switched to the heating mainly performed by the floor heating device 3 as the floor temperature T1 increases.

Thus, according to the room heating device 1,
At the beginning of the operation, the indoor temperature is quickly raised to near the set temperature T3 by the air conditioner 2, but when the floor is warmed by the floor heating device 3, the temperature of the air conditioner 2 is lowered to reduce the head cold foot heat effect. A very comfortable heating state can be maintained.

(Second Embodiment) Next, an indoor heating device according to another embodiment of the present invention will be described. Since the configuration of this indoor heating device is the same as that shown in FIGS. 1 and 2, illustration is omitted, and the same components will be described using the same reference numerals.

In comparison with the first embodiment, in this embodiment, when the air conditioner 2 and the floor heating device 3 are simultaneously operated for heating, the air conditioner 2 and the floor heating The device 3 is operated independently, and the independent operation state is continued until the room temperature T2 detected by the room temperature sensor 17 reaches the set temperature T3 set by the remote controller 4 or a temperature near the set temperature T3.

When the room temperature T2 reaches the set temperature T3 or a temperature in the vicinity of the set temperature T3, the heating target temperature T4 of the air conditioner 2 is set to Δt according to the floor temperature T1 as in the first embodiment. And the target heating temperature T4 is gradually lowered from the set temperature T3 as the floor temperature T1 is raised (the deviation Δt is gradually increased).

Here, the case of the first embodiment and the case of the present embodiment will be compared. FIG. 4 shows the transition of the floor temperature and the room temperature from the start of the heating operation in the case of the first embodiment and the case of the second embodiment. In the case of the first embodiment, since the heating target temperature T4 of the air conditioner 2 decreases as the floor temperature T1 increases after the operation starts, the temperature increase of the air conditioner 2 gradually decreases. Go. On the other hand, in the case of the second embodiment, the room temperature T2
Until the temperature reaches the set temperature T3 or a temperature near the set temperature T3, the air conditioner 2 keeps the floor temperature T1 of the floor heating device 3
Regardless, since the heating operation is performed with the target temperature T3 as a target, the room can be quickly heated. Therefore, according to this embodiment, the room can be warmed more quickly than in the first embodiment. Then, after the room temperature T2 has reached the set temperature T3 or a temperature near the set temperature T3, the air conditioner 2 can be operated in a suppressed manner to shift to a heating state of head and foot heat.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating a configuration of an indoor heating device according to an embodiment of the present invention.

FIG. 2 is a schematic block diagram illustrating a main configuration of the indoor heating device according to the first embodiment.

FIG. 3 is a diagram showing a relationship between a floor temperature T1 and a deviation Δt according to the first embodiment.

FIG. 4 is a diagram illustrating changes in floor temperature and room temperature of an indoor heating device according to another embodiment of the present invention.

[Explanation of symbols]

 2 air conditioner 2a outdoor unit 2b indoor unit 3 floor heating device 4 temperature setting device

Claims (2)

[Claims] 1. An indoor heating device including a floor heating device and an air conditioner, comprising: means for detecting a floor temperature of the floor heating device; and means for setting a heating target temperature of the air conditioner. In the case where the air conditioner and the floor heating device perform the heating operation simultaneously, as the floor temperature of the floor heating device increases, the heating target temperature of the air conditioner is gradually lowered from the setting temperature by the setting unit. Indoor heating system 2. An indoor heating device including a floor heating device and an air conditioner, wherein: a means for detecting a floor temperature of the floor heating device; a means for setting a heating target temperature of the air conditioner; The air conditioner and the floor heating device are operated independently of each other at the initial stage of the heating operation in which the air conditioner and the floor heating device are simultaneously heated, and the room temperature is set by the setting temperature or the set temperature set by the setting device. After reaching a temperature in the vicinity of the set temperature, as the floor temperature of the floor heating device rises, the heating target temperature of the air conditioner is gradually lowered from the set temperature by the setting means.