JPH04316939A - Cooling and heating apparatus and its control method - Google Patents

Abstract

PURPOSE:To obtain a cooling and heating apparatus which solves such problems that a user feels chill because of low temperature and high flow rate of blowing air, heating rises slow, and the heating capacity falls as the outside temperature becomes lower. CONSTITUTION:A cooling and heating apparatus includes flat radiator units 10 that can be mounted on a ceiling 40, and an air conditioner. The radiator units 10 are equipped with external frames which emit far infrared rays 70 when heated and heaters which heat the external frames. The radiator units 10 and the air conditioner are controlled independently or in linkage with each other.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-conditioning and heating system that includes a radiant unit that emits far-infrared rays and an air conditioner and that can be mounted on a ceiling or wall, and a method for controlling the same.

0002

2. Description of the Related Art Conventionally, air conditioners have been most commonly used as air conditioners because they are convenient, safe, and do not pollute the air.

0003

[Problems to be Solved by the Invention] However, when air conditioners are used for heating, the temperature of the hot air blown out is low, the amount of warm air blown out is large, which makes the person feel chilly, and there is an unpleasant feeling of air flow. There are problems such as slow start-up and heating capacity decreases as the outside temperature decreases. For this reason, when heating with an air conditioner, electric carpets, electric kotatsu, oil fan heaters, etc. are actually used as supplementary devices.

The present invention was created in view of the above-mentioned circumstances, and aims to provide a new air-conditioning/heating machine that solves the heating problems of conventional air-conditioning/heating machines, especially air conditioners, and a method for controlling the same. There is.

[0005]

[Means for Solving the Problems] An air conditioner according to the present invention includes a planar radiant unit that can be attached to a ceiling or a wall, and an air conditioner that can be attached to a ceiling or a wall. The radiant unit includes an outer frame that emits far infrared rays when heated, and a heater section that heats the outer frame, and the radiant unit and the air conditioner can be controlled independently or in conjunction with each other. is configured to be

[0006] Furthermore, a method for controlling an air conditioner and a heater according to the present invention is a method for controlling an air conditioner having an air conditioner and a radiant unit that is heated and emits far infrared rays. When the indoor temperature reaches a preset temperature, the air conditioner is stopped and only the radiant unit is operated, and the air conditioner is activated only when the indoor temperature falls below the preset temperature It is set to restart.

[0007]

[Embodiment] Fig. 1 is an explanatory diagram showing a state in which an air conditioner/heater according to an embodiment of the present invention is attached to a ceiling surface, and Fig. 2 is an explanatory diagram showing a state in which this air conditioner/heater is attached to a ceiling surface from the back side of the ceiling. Figure 3 is a perspective view of the radiation unit from the front side, Figure 4
is a perspective view of the radiation unit from the back side, FIG. 5 is an exploded perspective view of the radiation unit, FIG. 6 is a cross-sectional view of the radiation unit, and FIG.
Figure 8 is a cross-sectional view of the heater section, which is a component of the radiation unit.
9 is a perspective view of the heater section, FIG. 9 is an electrical circuit diagram of this air conditioner and heating device, and FIG. 10 is a timing chart showing a control method of this air conditioner and heating device.

The air conditioner according to this embodiment includes a planar radiation unit 10 that can be attached to the ceiling surface 40 and an air conditioner 30 that can be attached to the ceiling surface 40. The radiation unit 10 includes an outer frame 11 that emits far infrared rays when heated, and a heater section 12 that heats the outer frame 11. The radiation unit 10 and the air conditioner 30 may be used alone or in conjunction with each other. configured to be controlled.

First, the radiation unit 10 will be explained with reference to FIGS. 3 to 8. Such a radiation unit 10 is
As shown in FIG. 5, there is a square tray-shaped outer frame 11, a heater part 12 housed in this outer frame 11, a heat insulating material 13 laminated on this heater part 12, and a backing that presses this heat insulating material 13. It has a cover 14 and an overheat prevention device 15 that cuts off electricity when the radiation unit 10 is overheated.

A far-infrared radiating material such as ceramic is coated on the front face 111 (indicated by diagonal lines in FIG. 3) of the outer frame 11. Therefore, when the outer frame 11 is heated, it emits far-infrared rays 70 with an intensity corresponding to the temperature of the surface portion 111. Furthermore, a flange 112 for attaching the radiation unit 10 to the ceiling surface 40 is formed at the peripheral edge of the outer frame 11.

As shown in FIG. 7, the heater section 12 includes:
The planar heating element 121 is made of polyester resin 122a, 1
22b sandwiched together, and has a shape and size that can be stored in the outer frame 11. Further, an adhesive material for fixing the heater section 12 to the outer frame 11 is applied to the lower polyester resin 122a. In addition,
In the drawing, 124 indicates a lead wire of the heating element 121.

The heat insulating material 13 is made of ceramic wool, glass wool, etc., and is laminated on the heater section 12. Further, the back cover 14 has a heat insulating material 13
The shape and size are set to fit inside the outer frame 11. Further, the back cover 14 is provided with a connection terminal 141 to which the lead wire 124 is connected. This connection terminal 14
1 with a connecting line 16, a plurality of radiation units 10 can be connected.

The overheat prevention device 15 is, for example, a thermal fuse or the like, and is installed on the upper surface of the heater section 12 so as to sensitively react to the temperature of the heater section 12.

The radiation unit 10 is mounted on a ceiling surface 40 in a square shape, as shown in FIG. At this time, the radiation units 10 are connected in parallel to each other by connecting wires 16 in the ceiling space, as shown in FIG. This connection line 16 is connected to a controller 20 attached to a wall surface 50.

An indoor unit 31 of an air conditioner 30 is attached to the center of the radiation unit 10 that is attached in a square shape. This air conditioner 30 is of a normal type, and includes the indoor unit 31 and an outdoor unit 3 connected to it.
2. The indoor unit 31 and the outdoor unit 32 are connected by piping 33 for refrigerant and electrical wiring 34. Further, the air conditioner 30 is connected to the controller 20.

The controller 20 has a temperature sensor (not shown) that detects the indoor temperature, and controls the radiation unit 10 and the air conditioner 30 based on the detection result of this temperature sensor.

Note that 60 in the drawings indicates a lighting fixture that is attached to the ceiling surface 40. This lighting fixture 60 is
It can be controlled by a controller 20.

Next, the control of the air conditioner configured as described above will be explained with reference to FIG. Note that in the controller 20, it is assumed that the indoor temperature is set to T° C., and α, β, and γ≧0.

First, when the air conditioner starts operating at time t0, the radiation unit 10 and the air conditioner 30 start operating at the same time, and the indoor temperature rises. Time t1
In this case, when the indoor temperature becomes higher than a preset temperature T° C. by a predetermined temperature α° C. (for example, 1° C.), the operations of the radiation unit 10 and the air conditioner 30 are stopped at the same time. At the same time, the temperature at which the air conditioner 30 is restarted is set to T.
-β-γ℃.

At time t1, the operations of the radiation unit 10 and the air conditioner 30 are simultaneously stopped, so the indoor temperature starts to gradually decrease from T+α°C. Here, at time t2, when the indoor temperature drops to T-β°C, only the radiation unit 10 starts operating. In addition,
The indoor temperature at which this radiation unit 10 restarts is T-β°C.
is preset, for example, to a temperature 1° C. lower than the set temperature.

[0021] When the radiation unit 10 resumes operation, the temperature in the room starts to rise gradually from T-β°C. and,
When the indoor temperature rises again to T+α℃ (time t3)
, the radiation unit 10 stops operating again. In this way, after the air conditioner starts operating, the indoor temperature reaches T+.
When the temperature rises to α℃, only the radiation unit 10 is turned on.
It is controlled off between T-β°C.

[0022] Due to some reason, for example, the opening and closing of the door, the indoor temperature rapidly drops to T-β°C (time t6), and even though the radiant unit 10 has restarted, the decrease in the room temperature causes the radiant unit to If the heating capacity exceeds 10, the room temperature will not rise from T-β℃, but will rise to T-
Becomes lower than β℃. Then, at time t7, the indoor temperature becomes T-β-γ℃ (for example, 3℃ below the set temperature).
When the temperature drops to a low temperature (low temperature), not only the radiant unit 10 but also the air conditioner 30 restarts operation, raising the indoor temperature.

At time t7, the radiation unit 10 and the air conditioner 30 operate simultaneously, and the indoor temperature reaches T-β.
When the temperature rises from -γ℃ to T+α℃, the radiation unit 1
0 and the air conditioner 30 stop operating at the same time. Then, when the indoor temperature drops to T-β°C, only the radiation unit 10 resumes operation.

[0024] As described above, the radiant unit 10 of the air conditioner according to this embodiment has an indoor temperature of T+α°C>T°C>T−.
The air conditioner 30 is controlled to be within the range of β°C, and the air conditioner 30 is set to be activated only when the indoor temperature becomes T-β-γ°C or lower.

Note that in the above embodiment, the radiation unit 10
Although the case where the air conditioner 30 and the air conditioner 30 are linked together has been described, it goes without saying that the air conditioner according to the present invention can operate the radiant unit 10 and the air conditioner 30 separately and independently. . Note that for controlling the radiation unit 10 and the air conditioner 30, on/off control, inverter control, etc. are used.

Furthermore, in the above embodiment, the radiation unit 10
Although the air conditioner 30 and the air conditioner 30 are attached to the ceiling surface 40, it is also possible to attach both to the wall surface 50, or to attach one of them to the ceiling surface 40 and the other to the wall surface 50.

Furthermore, the radiation unit 10 includes a lighting 60.
In addition, an air purifier, a circulator, or the like may be incorporated and controlled by the controller 20.

[0028]

[Effects of the Invention] The air conditioner according to the present invention has a flat radiation unit that can be attached to a ceiling or a wall, and an air conditioner that can be attached to a ceiling or a wall. The radiant unit includes an outer frame that emits far infrared rays when heated, and a heater section that heats the outer frame. operate at the same time,
When the indoor temperature reaches a preset temperature, the air conditioner is stopped and only the radiant unit is activated, and the air conditioner is restarted only when the indoor temperature falls below the preset temperature by a predetermined temperature. Since it is controlled so as to have the following effects.

[0029] That is, since the radiant unit and the air conditioner are operated at the same time when heating starts, the room can be warmed in a short time. In addition, since the human body is directly warmed from the core by the effect of far-infrared rays, the indoor temperature can be set low and the heating start-up time can be shortened. When only the radiant unit is operating, radiant heating is performed using far-infrared rays, so there is no chilly feeling caused by air blowing, unpleasant airflow sensation, dust kick-up, or blower noise. Furthermore, when an air conditioner is used for a long time when the outside air temperature drops, its heating capacity decreases, but this problem does not occur with this air conditioner because it is used as an auxiliary device. Furthermore, during the summer, you can use an air conditioner to cool the room.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing a state in which a heating and cooling device according to an embodiment of the present invention is attached to a ceiling surface.

FIG. 2 is an explanatory view from the back side of the ceiling with this air conditioner installed on the ceiling surface.

FIG. 3 is a perspective view of the radiation unit from the front side.

FIG. 4 is a perspective view of the radiation unit from the back side.

FIG. 5 is an exploded perspective view of the radiation unit.

FIG. 6 is a cross-sectional view of the radiation unit.

FIG. 7 is a sectional view of a heater section that is a component of the radiation unit.

FIG. 8 is a perspective view of the heater section.

FIG. 9 is an electrical circuit diagram of this air conditioner.

FIG. 10 is a timing chart showing a method of controlling this air conditioner.

[Explanation of symbols]

10 Radiation unit 11 Outer frame 12 Heater section 30 Air conditioner 40 Ceiling surface 50 Wall surface 70 far infrared rays

Claims (2)

[Claims] [Claim 1] In an air conditioner and heater having a planar radiant unit that can be attached to a ceiling or a wall, and an air conditioner that can be attached to a ceiling or a wall, the radiant unit is heated. It is equipped with an outer frame that emits far infrared rays and a heater section that heats this outer frame.
An air conditioner, wherein the radiation unit and the air conditioner are controlled independently or in conjunction with each other. 2. A method for controlling an air conditioner having an air conditioner and a radiant unit that is heated and emits far infrared rays, the radiant unit and the air conditioner are operated simultaneously to bring the indoor temperature to a preset temperature. If so, the air conditioner is stopped, only the radiant unit is operated, and the air conditioner is restarted only when the indoor temperature drops by a predetermined temperature from the set temperature. Method.