JPH02225920A - Radiation type cooling/heating apparatus - Google Patents

Abstract

PURPOSE:To simplify the structure of the title apparatus, and to enable radiant cooling and heating operations with an energy-saving effect by providing a natural convection type condenser in parallel to a forced convection type condenser for a refrigeration circuit, and by operating one of, or both of the condensers by means of a changing-over valve. CONSTITUTION:During a cooling operation, a forced convection type condenser 9 alone is actuated to operate a refrigeration circuit, and cold heat generated from an evaporator 8 cools a cooling plate 4 constituting a part of a cold air blowing passage communicating to a cold, air outlet port 5 to emit cool radiation to the front of the cooling plate while cold air is blown through the cold air outlet port 5 to the front of the main body of the title apparatus for cooling a space. During a heating operation, the forced convection type condenser 9 and a natural convection type condenser 17 are actuated in combination with each other to operate the refrigeration circuit, whereby heat generated from the evaporator 8 heats a casing panel 2 to radiate heat radiation to the front space in the vicinity of the apparatus to heat the space. Further, heat from the evaporator 8 by the actuation of the forced convection type condenser 9 is discharged through an outlet port 6 for exhaust heat. During a cooling/heating operation, both condensers 9 and 17 are actuated together to operate the refrigeration circuit, and cold heat generated from the evaporator 8 is blown through the cold air outlet port 5 to the front of the main body while cooling the cooling plate to emit cold radiation for cooling the room. On the other hand, the evaporator 17 heats the casing panel 2 to emit heat radiation for heating the front space.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a radiant heating and cooling system that creates a comfortable local space.

Conventional technology In recent years, there has been a demand for air-conditioning and heating systems that provide a higher level of comfort that suits the individual's experience, and devices have been developed that allow fine control of local air conditioning by incorporating refrigeration circuits into furniture such as low partitions and desks. .

Examples of conventional radiation heating and cooling equipment are shown in Figures 8 to 10 below.
This will be explained based on the diagram.

On the front surface of the lower protrusion 103 of the deep frame 101, there is a frame spring /l/102 that emits heat radiation, a cooling plate 104 located above it that emits cold radiation, and a cooling plate 104 located above it that emits cold radiation. A cold air outlet 105 is provided, and an outlet 106 for hot exhaust heat is provided on the upper surface.

Inside, there is a compressor 110 and a forced convection condenser 10.
9 and a forced convection type evaporator 108, etc., the condenser 109 exchanges heat with a condensing blower (not shown), and the hot exhaust heat is released upward from the outlet 106. It has become. Next, the evaporator 108 is located downstream of an evaporator blower (not shown) for heat exchange, and communicates with the cold air outlet 105 via a cold air passage 116 formed on the back surface of the cooling plate 104.

An electric heater 126 is built into the entire surface of the frame spring 102.

With the above configuration, the cold air that has undergone heat exchange in the evaporator 108 cools the cooling plate 104 and is blown out forward from the cold air outlet 105. As a result, the space near the front of the frame 101 is cooled by cold air and cold radiation. In addition, by heating the electric heater 126 built in the lower front surface, the frame panel 102 is heated, and the space near the front is heated by thermal radiation.

Problems to be Solved by the Invention In the above-mentioned conventional technology, during cooling, the refrigeration circuit is operated to send out cold air and cold radiation, and during heating, the electric heater 125 is operated.
Heat radiation was sent out by heating the body with electricity, but each person's experience is different.
If you want to keep your feet warm, use the refrigeration circuit and electric heater 1.
Since both 26 and 26 machines are operated, there was a problem in that running costs were high.

The present invention takes these problems into consideration, and aims to provide a radiant heating and cooling system that reduces running costs during simultaneous heating and cooling operation and creates a comfortable local space with a cold head and warm feet.

The present invention has been made with the above-mentioned problems in mind, and a first object of the present invention is to provide a radiant heating and cooling device that has low running costs and high efficiency. The second purpose is to provide a radiant heating and cooling device with a relatively simple mechanism and low initial cost.

Means for Solving the Problems In order to achieve the above-mentioned first object, the first technical means of the present invention is to provide a frame panel on the front surface of the frame which is located below and emits heat radiation; A cooling plate located above the frame panel that emits cold radiation and a cold air outlet located above this cooling plate are provided, and the top surface of the frame is provided with a hot heat exhaust outlet and a cold exhaust heat outlet. A compressor, a forced convection type condenser, a natural convection type condenser connected in parallel to this condenser, and a forced convection type evaporator are provided inside the frame. , a refrigeration circuit consisting of a blower fan, each of the forced convection condenser and the natural convection condenser having a switching valve for switching the flow of refrigerant, the forced convection evaporator and the natural convection condenser. The blower fan communicates with the cold air outlet through a cold air outlet passing through the back surface of the cooling plate, and the cold air outlet branches on the upstream side of the cooling plate and communicates with the cold exhaust heat outlet. A switching damper is provided in the section, the natural convection type condenser is arranged inside the frame panel, and the forced convection type condenser and the blower fan are connected to the hot exhaust heat outlet. It is configured as a radiant air conditioning system with two air channels that communicate with each other.

The second technical means for achieving the second purpose is that the front side of the frame includes a frame panel located below to emit hot radiation, and a frame panel located above the frame spring to emit cold radiation. A cooling plate and a cold air outlet located above the cooling plate are provided, and a hot exhaust heat outlet and a cold exhaust outlet are provided on the top surface of the frame. has a refrigeration circuit consisting of a compressor, a forced convection type condenser, a forced convection type evaporator, and a blower fan, and the evaporator and the blower fan blow cold air through the back side of the cooling plate. The cold air outlet is connected to the cold air outlet by a channel, the cold air outlet branches on the upstream side of the cooling plate and communicates with the cold exhaust heat outlet, a switching damper is provided at the branched part, and the condenser is connected to the cold air outlet. and the blower fan has a bifurcated hot air blowing path that communicates with the frame panel and the heat exhaust outlet, and a damper for switching is provided in the bifurcated branch, and a damper is provided for switching from the frame panel to the heat exhaust outlet. The radiant heating and cooling apparatus is configured to include an outlet air passage communicating with the hot air air passage, and a damper for opening and closing communication between the outlet air passage and the hot air air passage.

Effect: Due to the configuration of the first means, during cooling, only the forced convection type condenser is operated by the switching valve to operate the refrigeration circuit, and the cold heat from the evaporator is transferred to the cold air channel which communicates with the cold air outlet. The cooling plate that forms part of the cooling plate is cooled, and while cooling radiation is emitted in front of the cooling plate, the cold air is blown out from the cold air outlet to the front of the main body for cooling.

The heat from the condenser is blown upward from the hot exhaust heat outlet.

During heating, by operating the forced convection condenser and natural convection condenser in parallel to operate the refrigeration circuit, the heat from the natural convection evaporator heats the frame panel and heats up the heat radiation. It radiates into the surrounding space and heats it.

The forced convection type hot heat is discharged from the hot exhaust heat outlet, and the cold heat of the evaporator is discharged upward from the cold exhaust heat outlet by switching the damper.

During heating and cooling, both the forced convection type and natural convection type condensers are operated to operate the refrigeration circuit, and the cold energy from the evaporator is blown out from the cold air outlet to the front of the main unit, cooling the cooling plate and releasing cold radiation. Cool down. The natural convection type condenser heats the front space by heating the frame panel and emitting thermal radiation. The heat from the forced convection type condenser is discharged upward from the hot exhaust heat outlet.

According to the configuration of the second technical means, during cooling, the cold heat of the evaporator passes through the cold air blowing ffl path and blows out forward from the cold air outlet while cooling the cooling plate, thereby allowing the cold radiation from the cooling plate and the cold air outlet to be emitted from the evaporator. Air conditioning is performed using cold air from the air conditioner. The hot waste heat of the condenser is discharged upward from the hot waste heat outlet through the hot air duct.

During heating, the heat from the condenser is transferred to the frame panel by switching the damper in the hot air duct to communicate with the frame panel, and by switching the damper in the outlet air path from the frame panel to communicate with the hot air duct. The front area is heated by thermal radiation.

The cold heat of the evaporator is discharged upward by switching the damper in the cold air passage and communicating with the cold exhaust heat outlet.

During heating and cooling, the cold energy from the evaporator passes through the cold air passage and blows out forward from the cold air outlet while cooling the cooling plate.The cold air and the cold radiation from the cooling plate perform cooling, and the warm heat from the condenser is transferred to the frame panel. The front area is heated by thermal radiation from the frame panel.

Example First, an example according to the first technical means of the present invention will be described as a first example.
This will be explained based on FIGS. 5 to 5.

As shown in the figure, the frame 1, which is a screen-like box, has a protrusion 3 at the lower part of the front surface, and the entire front surface of this protrusion 3 serves as a frame spring /L/2 for heat radiation. A cooling plate 4 for cold radiation is provided on the front surface of the frame 1 above the protrusion 3, and a horizontally elongated cold air outlet 6 is provided above the cooling plate 4, that is, near the top of the frame 1. On the upper surface of the top, a hot exhaust heat outlet (○) for hot exhaust heat is provided on the left side, and an outlet B7 for cold exhaust heat is provided on the right side.

A compressor 10 is installed inside the protrusion 3. Forced convection condenser 9, natural convection condenser 1 connected in parallel
7. A refrigeration circuit consisting of a forced convection type evaporator 8 is provided, and a fan A11 for the evaporator 8 and the condenser 9 are provided.
A fan B12 for refrigerant switching, a solenoid valve A18 for refrigerant switching, and a solenoid valve 819 are provided. The solenoid valve A1s corresponds to the condenser 9, and the solenoid valve B19 corresponds to the condenser 17. Further, a cold air passage 16 is formed in the upper interior of the frame 1, which communicates from the downstream side of the fan A11 to the cold air outlet 6 via the back surface of the cooling plate 4.

A damper 16 is provided on the fan A11 side of the cooling plate 4 of the cold air passage 16, and by switching this damper 16, the air outlet B is moved from the downstream side of the fan A11.
A ventilation path A13 communicating with 7 is formed. Next, an air passage B14 for hot exhaust heat is formed in communication from the downstream side of the fan B12 for the condenser 9 to the above-mentioned blow-out sun.

In the above configuration, when cooling, by opening the solenoid valve A18 and closing the solenoid valve B19, the condenser 2 inside the frame panel 2
By operating the refrigeration circuit without using the refrigeration circuit, the cold air that has undergone heat exchange by passing through the evaporator 8 is sent to the cold air passage 15 by the fan A11, and the cooling plate 4 is cooled from the back side. Cold radiation is emitted to the space near the front of the cooling plate 4, and cold air is sent forward from the cold air outlet 6. Further, the hot exhaust heat heat-exchanged by the condensation 1ts9 is sent to the air passage B14 by the fan B12, and is emitted from the air outlet 6 provided on the upper surface of the frame body 3.

Next, during heating, the refrigeration circuit is operated with both the solenoid valve A18 and the solenoid valve B19 open, and the cold air that has passed through the evaporator 8 for heat exchange is switched to the damper 16 of the cold air passage 16 by the fan A11. , is sent to the air passage A13 opened by closing the cold air passage 15, and is discharged upward into the room from the air outlet B7. Further, the heat generated in the condenser 17 heats the frame spring/L'2 in the front, and emits thermal radiation to the space near the front. Furthermore, the hot waste heat exchanged in the condenser 9 is sent to the air passage B14 by the fan B12,
The air is discharged into the room from the air outlet Ae provided on the upper surface of the frame body 3.

Furthermore, during cooling and heating, the refrigeration circuit is operated with both solenoid valve A18 and solenoid valve B1e open in the same way as during heating, so that the cold air passage cools the cooling plate 4 in the same state as during cooling, and fills the space near the front. It emits cold radiation and also has a cold air outlet 5.
Cooler air is sent forward, and the heat exchanged by the condenser 17 provided below the frame 1 heats the frame panel 2, and the space near the front is heated by thermal radiation. Also condenser 9
The heat exchanged heat exhaust heat is sent to the air passage B1 by the fan B12.
It is sent out at 4, and released into the room from blowout sunset 〇.

FIG. 5 shows a typical example of a cold head and warm feet when the desk 30 is attached to this radiant heating and cooling system.

Next, an example of the second technical means is shown in FIGS. 6 and 7.
This will be explained based on the diagram.

As shown in the figure, the frame 1, which is a screen-shaped box, has a protrusion 3 at the lower part of the front surface, and a flat hot air chamber 20 is connected to the front of the protrusion 3. , the protrusion 3
A cooling plate 4 for cold radiation is provided on the front surface of the upper frame 1, and a horizontally elongated cold air outlet 6 is provided above the cooling plate 4, that is, near the top of the frame 1. A hot exhaust heat outlet A6 is provided on the left side, and a cold exhaust heat outlet B7 is provided on the right side.

A refrigeration circuit having a compressor (not shown), a condenser (not shown), an evaporator (not shown), an evaporator fan A11, and a condenser fan B12 is provided inside the protrusion 3. It is being

A cold air passage 16 is provided in the upper interior of the frame 1 through which cold air heat exchanged by the evaporator from the downstream side of the evaporator fan A11 communicates with the cold air outlet 5 through the back surface of the cooling plate 4. .

A damper 023 is provided on the fan A11 side of the cooling plate 4 of the cold air passage 15, and by switching this damper C23, the air passage A13 is communicated from the downstream side of the fan A11 to the cold exhaust heat outlet B7. is formed. A blowing passage B14 is formed in which hot exhaust heat heat exchanged by the condenser is communicated from the fan B12 to the blowing sun/set 〇.

Further, a damper B21 is provided at the entrance to the hot air chamber 20 of the inlet air passage 24 that communicates with the hot air chamber 20 from the downstream side of the condenser fan B12. A damper A22 is provided at the entrance of the outlet air passage 25, which communicates the hot air chamber 20 and the air passage B14, to the air passage B14.

In the above configuration, the operating states of three types of refrigeration circuits during cooling, heating, and cooling/heating will be explained.

First, during cooling, damper 023 is switched to fan A1.
By closing the air passage A13 from the air outlet BT to the air outlet BT, the cold air from the evaporator passes through the cold air passage 15 and cools the cooling plate 4, thereby emitting cold radiation to the space in front of the cooling plate 4 and blowing the cold air. Cold air is sent out in front of the exit 6.

In addition, by closing the inlet air passage 24 with the damper B21, the hot waste heat exchanged in the condenser is not sent to the warm air chamber 20, but is sent directly to the air passage B14, and from the air outlet 080. Released into the room.

Next, during heating, the damper C23 is switched to the cold air passage 16.
When the evaporator is closed, the cold air that has undergone heat exchange with the evaporator passes directly through the air passage A13 and is discharged into the room from the air outlet B7. In addition, the hot waste heat exchanged in the condenser is sent to the warm air chamber 20 by switching the damper B21 to close the air passage B14 and opening the inlet air passage 24. After heating and emitting thermal radiation to the space near the front, the damper A22 is switched to open the outlet air passage 26, so that the air is sent to the air passage B14 and discharged into the room from the air outlet A6.

Furthermore, during cooling/heating, damper 023 is switched to fan A.
By closing the air passage A13 from the air outlet B7 to the air outlet B7, cold radiation is emitted from the cooling plate 4 in the same way as during cooling, and while cold air is emitted from the cold air outlet 5, the damper B21 is switched to close the air air passage B14. By keeping the inlet air passage 24 open, the hot exhaust heat heats the hot air chamber 20 in the same way as during heating, and after emitting warm radiation to the space near the front, the damper A
22 to open the outlet air passage 26, the air is sent to the air passage B14 and discharged into the room from the air outlet A6.

Effects of the Invention As is clear from the description of the embodiments above, according to the present invention, a natural convection type condenser is provided in parallel with a forced convection type condenser in a general refrigeration circuit, and one or both of them are controlled by a switching valve. The natural convection type condenser is heated and cooled by heat dissipation through the frame panel, cold air from the evaporator, and cold radiation from the cooling plate. The switching damper allows it to be used only for cooling or only for heating, and enables energy-saving radiant heating and cooling with a simple structure.

In addition, in a normal refrigeration circuit, the warm heat from the condenser is released as thermal radiation from the frame panel, and the cold heat from the evaporator is released as cold radiation from the cooling plate and cold air from the air outlet. By switching with a switching damper, it can be used only for cooling or only for heating, providing radiant heating and cooling with a simpler structure and energy-saving effects.

[Brief explanation of the drawing]

FIG. 1 is a sectional front view of the main parts of a radiant heating and cooling device showing an embodiment of the first technical means of the present invention, FIG. 2 is a side sectional view of the same radiant heating and cooling device, and FIG. Fig. 4 is a refrigeration circuit diagram of the radiant air-conditioning equipment; Fig. 5 is a usage state diagram of the radiant air-conditioning equipment with a desk attached; Fig. 6 is a perspective view of the air-conditioning equipment;
The figure is a cross-sectional perspective view of a main part of a radiant heating and cooling device showing an embodiment of the second means, and FIG. 7 is a perspective view of the radiant heating and cooling device.
Fig. 8 is a perspective view of a conventional radiant heating and cooling system, Fig. 9 is a sectional view taken along line C-C in Fig. 8 of the same radiant heating and cooling system, and Fig. 10 is a D in Fig. 8 of the same radiant heating and cooling system. -D'
FIG. 1... Frame, 2... Frame panel, 4.
...Cooling plate, 5...Cold air outlet, 6...
...Blowout port A, 7...Blowout port B, 8...
...Evaporator, 9...Condenser, 1o...
・Compressor, 11------Fan A, 12...
・Fan B113... Air duct A, 14...
...Blower passage B116...Cold air passage, 16...
...Damper, 17...Condenser, 18...
...Solenoid valve A119...Solenoid valve B, 20...
... Warm air chamber, 21 ... Damper B
, 22... Damper A, 23... Damper C, 24... Inlet air path, 25...
Exit air path. Name of agent: Patent attorney Shige Takashi Awano and one other person. - Thickness - b, g exit D 6 - - Convergence UA 1 - - Il and exit 5 8, - Hair fixed tree If - Fluorine A fri -, - Fluorine b 15... - Button [Moon A ++- --fL 艮buta 5 IB-ichi Kanji I) 19-...i-benra faction

Claims (2)

[Claims] (1) On the front of the frame, there is a frame panel located below that emits hot radiation, a cooling plate located above this frame panel that emits cold radiation, and a cooling plate located above this cooling plate. A cold air outlet is provided, a hot exhaust heat outlet and a cold exhaust heat outlet are provided on the top surface of the frame, and a compressor and a forced convection condenser are installed inside the frame. , has a refrigeration circuit and a blower fan in which a natural convection type condenser and a forced convection type evaporator are connected in parallel to the condenser, and the forced convection type condenser and the natural convection type evaporator are connected in parallel. Each of the condensers has a switching valve for switching the flow of refrigerant, and the forced convection evaporator and the blower fan communicate with the cold air outlet through a cold air passage passing through the back surface of the cooling plate, The air passage branches on the upstream side of the cooling plate and communicates with the cold exhaust heat outlet, a damper for switching is provided at the branch part, and the natural convection condenser is disposed inside the frame panel. The forced convection condenser and the blower fan are provided with a blower path that communicates with the hot exhaust heat outlet. (2) On the front of the frame, there is a frame panel located below that emits hot radiation, a cooling plate located above this frame panel that emits cold radiation, and a cooling plate located above this cooling plate. A cold air outlet is provided, a hot exhaust heat outlet and a cold exhaust heat outlet are provided on the top surface of the frame, and a compressor and a forced convection condenser are provided inside the frame. , a refrigeration circuit including a forced convection evaporator and a blower fan; the evaporator and the blower fan communicate with the cold air outlet through a cold air blower path passing through the back surface of the cooling plate; is branched on the upstream side of the cooling plate and communicates with the cold exhaust heat outlet, a damper for switching is provided at the branch part, and the condenser and the blower fan are connected to the frame panel and the hot exhaust heat outlet. a bifurcated hot air blowing path that communicates with the hot air blowing outlet, a damper for switching is provided at the bifurcated branch, and an outlet air path that communicates from the frame panel with the hot air blowing path; A radiant heating and cooling device including a damper that opens and closes communication between the outlet air path and the warm air blowing path.