JPH1054576A - Floor radiation system - Google Patents

Abstract

(57) [Summary] [Problem] Partial floor heating can be achieved, in which there is no place where air stays during floor heating, the floor surface temperature can be made uniform, temperature-controlled air of an air conditioner can be diverted. And a floor radiating system capable of adjusting the amount of air blown from a floor outlet. An air conditioner (5) has an upper fan (7) forcibly blowing temperature-controlled air from an upper air outlet (6a) into a room, and a lower fan (9) having a lower direct air outlet (6c) and a lower duct air outlet (6).
d, the temperature-controlled air is forcibly blown out to the duct path 4, and the first outlet selection means 11 selects either the lower direct outlet or the lower duct outlet to blow out the temperature-controlled air, In addition, at least one of the upper fan and the lower fan is controlled based on the indoor environment temperature, and the lower duct outlet is provided with a first branch unit for diverting conditioned air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor radiation system, and more particularly to a floor radiation system that provides a comfortable living area.

[0002]

2. Description of the Related Art Conventionally, a duct path formed by a double floor is provided under a floor, and blown air adjusted in temperature from an air conditioner is caused to flow through the duct path to perform floor radiation air conditioning by controlling the temperature of the floor surface. Floor radiation systems are known. FIG.
FIG. 31 is an external perspective view of an example of an indoor unit (also referred to as a floor air conditioner or a floor air conditioner) 101 used in a conventional floor radiation system.
32 is a vertical cross-sectional view when installed in FIG. 32, and FIG. 32 is an enlarged cross-sectional view of a main part of FIG.

[0003] As shown in FIGS.
01 at the upper and upper parts of the outer shell 110
11A is provided, and an outlet 112 is provided at the lower part of the front surface. 10
3 is a heat exchanger, 104 is a fan that can switch the air blowing direction up and down, and 120 is an outdoor unit. Then, when the outdoor temperature is high (cooling in summer), air conditioning (cooling) is performed by the next ventilation path (indicated by a dotted line in the figure).

The end (opening 107) of double bed 105 → hollow section 106 of double bed 105 → fan 104 → heat exchanger 103 → upper outlet 111 → blowing into chamber 102 ... path (1) On the other hand, when the outdoor temperature is low (heating in winter), air conditioning (heating) is performed by the next ventilation path (indicated by a solid line in the figure).

[0005] Upper outlet 111 → heat exchanger 103 → fan 104 → hollow portion 106 → opening 107 → blows out into chamber 102... Path (2) As described above, in summer, path (1) is used to move from floor to ceiling. Cooling is performed toward the part to make the room temperature distribution uniform, and in winter, floor heating is performed by the route (2) to make the head cold and heat to make the room temperature uniform.

[0006]

However, the conventional floor radiation system has the following "system problems" and "control problems".

(1) Problems in the System There is a place where air stays during floor heating When floor heating is performed, as shown in FIG. Does not rise evenly, compromising comfort.

The air path (blowing path) in the heating operation without the function of making the floor surface temperature uniform is as shown by a solid line in FIG. That is, since the floor surface is heated by the air in the hollow portion 106, the temperature of the air in the hollow portion 106 decreases from the side closer to the indoor unit 101 toward the opening (outlet) 107. At the same time, the floor surface temperature decreases from the indoor unit 101 side to the outlet 107 side (see FIG. 35). Therefore, the floor surface temperature becomes uneven and the feeling of comfort is impaired.

[0009] Even if a duct route (hollow portion 106) is already installed in a house, there is no way to divert the flow to the duct route 106. .
In this case, since the duct route installer is likely to be a carpenter, it is highly likely that he or she does not have the technology and skills to create the above-mentioned diverters, and it is thought that it is not possible to perform even diversion over the entire floor. Can be

For this reason, even if there is a duct path 106, the blown air easily flows to a portion indicated by a dotted arrow in front of the indoor unit 101 in FIG. Makes it difficult for the blown air to flow. As a result, the flow is unevenly distributed, and the floor surface temperature is not uniform.

[0011] Partial floor heating cannot be performed. For example, since floor heating cannot be performed only in a portion indicated by a hatched portion in FIG. 37, the demands of consumers cannot be satisfied.

The air that cannot be adjusted in the amount of air blown from the floor outlet is concentrated in a place where it easily flows.
The flow is the most at the central outlet shown by the arrow (indicated by a thick arrow), and the corners of the room are more difficult to flow (indicated by the thin arrow). For this reason, since the flow of air is reduced at the corners of the room, the floor surface temperature does not increase, and the floor surface temperature becomes non-uniform, and the feeling of comfort is impaired.

(2) Problems on Control In summer cooling operation, indoor air is passed through a duct route (hollow portion 10).
6) When the humidity of the indoor air sucked in through is high and the temperature in the duct path is low, the air path (indoor → hollow section 106 → indoor unit 101) takes the air path inside the duct path (hollow section 106). Dew (see FIG. 39), and the dew accumulates inside the duct. As a result, it becomes a hotbed of mold and ticks, and the indoor air quality is reduced.

Floor heating is performed without considering indoor temperature and floor surface temperature during winter heating operation. The indoor environment is close to the target temperature and there is no problem in performing floor heating. When the temperature is low, the air blown from the indoor unit is used only to warm the floor, and the indoor temperature does not rise.

Referring to FIG. 40, since the heat quantity Q supplied from the air conditioner is blown out to the duct path (hollow portion 106), the floor surface heating (heat quantity Q1) and the heat dissipation loss (heat quantity Q
Change to 2). The rest of the heat consumed in these is blown out of the outlet 107 into the chamber 102 (Qout). Therefore, the amount of heat supplied into the chamber 102 is reduced, so that the room temperature does not rapidly rise and does not easily reach the target temperature. For the above reasons, the heating rise is delayed, and it is not a comfortable space.

Accordingly, an object of the present invention is to provide a structure in which no air stagnation occurs during floor heating, the floor surface temperature can be made uniform, the temperature-controlled air of the air conditioner can be diverted, and Floor heating is possible, the amount of air blown from the floor outlet can be adjusted, and furthermore, there is no condensation inside the duct path during summer cooling operation, and floor heating can be performed in consideration of the indoor temperature and floor surface temperature during winter heating operation. An object of the present invention is to provide a floor radiating system that secures a comfortable living space.

[0017]

According to a first aspect of the present invention, a duct path is formed under a floor.
In a floor radiation system that performs floor radiation air conditioning by flowing the temperature-controlled blown air from the air conditioner through the duct path,
The air conditioner has an upper outlet that can blow temperature-controlled air into an indoor space provided above the air conditioner, an upper fan that forcibly blows temperature-controlled air from the upper outlet, A lower direct air outlet that can blow temperature-controlled air into the provided indoor space, a lower duct air outlet that can blow temperature-controlled air into the duct path provided below the air conditioner, the lower direct air outlet and a lower duct A lower fan for forcibly blowing out the temperature-controlled air from the air outlet, and a first air outlet selecting means for selecting one of the lower direct air outlet and the lower duct air outlet and blowing out the temperature-controlled air. It is characterized by the following.

According to the first aspect of the present invention, the upper fan forcibly blows the temperature-controlled air from the upper outlet into the room. The lower fan forcibly blows out the temperature-controlled air from the lower direct outlet and the lower duct outlet into the duct path. The first outlet selection means selects either the lower direct outlet or the lower duct outlet to blow out the temperature-controlled air.

Further, the invention according to claim 2 is characterized in that at least one of the upper fan and the lower fan is controlled based on the indoor environment temperature.
According to the second aspect of the present invention, a comfortable living space can be secured by controlling the rotation speed of the fan based on the indoor environment temperature.

Further, the invention according to claim 3 is characterized in that a first branch unit for branching conditioned air is provided at the lower duct outlet. According to the third aspect of the present invention, for example, as shown in FIGS. 10 and 11, a shunt unit (first shunt unit) 23 is installed below the lower duct outlet, and temperature-controlled air from the air conditioner 5 is provided. To the duct paths 4a to 4d branched from the outlets 23b to 23e of the flow dividing unit 23.
To blow out.

Further, the invention according to claim 4 is provided with a second outlet selection means near the lower outlet of the air conditioner, which can select any of a direct blow in the room, a full floor blow and a partial floor blow. It is characterized by the following. According to the invention of claim 4, for example, as shown in FIGS. 14 and 15, a rotatable semi-cylindrical louver (second outlet selecting means) 41
Is a first outlet 41a for full opening and a second outlet 4 for left opening.
1b and a third outlet 41c for right opening. The louver 41 is appropriately rotated to select any of the indoor direct blowing, the entire floor blowing, and the floor partial blowing (left or right).

Further, the invention according to claim 5 is characterized in that the air conditioner further comprises a second branch unit connecting the lower direct air outlet and the duct path over the entire surface of the lower direct air outlet. According to the invention of claim 5, for example, as shown in FIG.
a, a branch unit (second branch unit) 45 connecting the lower direct outlet 6a and the duct path 4 over the entire surface
Is provided. The temperature-controlled air from the air conditioner 5 is supplied to the branch unit 45.
Through the duct path 4.

The invention according to claim 6 is characterized in that the second branch unit is provided with an outlet path selecting means capable of selecting an indoor direct outlet path or a duct outlet path. According to the invention of claim 6, for example, FIG.
As shown in FIG. 1, by switching the damper (air outlet path selecting means) 48, either the indoor direct air outlet path or the duct air outlet path is selected.

According to a seventh aspect of the present invention, there is provided a floor radiation system for performing a floor radiation air conditioning by forming a duct path under the floor and flowing the temperature-controlled blown air from an air conditioner through the duct path. An outlet fan whose rotation speed can be adjusted is provided at the outlet at the end. According to the invention described in claim 7, for example, as shown in FIG. 22, a fan 49 whose rotation speed can be adjusted is provided at the outlet 12 at the end of the duct path.

[0025] The invention according to claim 8 is a floor radiating system in which a duct path is formed under the floor, and the conditioned air from an air conditioner flows through the duct path to perform floor radiating air conditioning. Wherein a heat transfer means is provided on the inner surface side of the duct of the floor member. Also,
The invention according to claim 9 is characterized in that the heat transfer means has different heat transfer coefficients depending on the air path.

According to the eighth and ninth aspects of the present invention, for example, as shown in FIGS. 23 and 24, the finned panel (heat transfer means) 51 is connected to a floor member (flooring).
At the inner side of the air conditioner 2, the number of fins is increased as the distance from the air conditioner 5 increases, and the temperature of the conditioned air passing through the duct path 4 efficiently controls the floor.

According to a tenth aspect of the present invention, the duct path is branched into a plurality of parts, and the heat transfer means is arranged so as to straddle a duct path adjacent to the branched duct path. According to the invention of claim 10, for example, FIG.
5, two adjacent duct paths 4 as shown in FIG.
The panel 52 is placed across the. In this way, heat is transferred from the higher temperature side (52a) to the lower temperature side (52b), and the temperature difference between two adjacent duct paths is reduced.

Further, the invention according to claim 11 is characterized in that an air-conditioning air introducing means having a plurality of branch air paths is provided at an air outlet of an air conditioner which blows out temperature-controlled air. According to the eleventh aspect, for example, as shown in FIG. 28, the temperature-controlled air can be easily led from the air outlet 53 to the panel 54.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings. Note that the same reference numerals are given to the already described portions, and redundant description is omitted.

(1) First Embodiment FIG. 1 is a perspective view including a partial cross section of a floor radiation system of this embodiment, and FIG. 2 is a cross-sectional view of an indoor unit used in the floor radiation system as viewed from a side. It is. As shown in FIGS. 1 and 2, a plurality of joists 3 are arranged under the floor between the control panel 1 and the flooring 2, and a duct path 4 is formed.

An air conditioner 5 is installed at a corner of the floor, and a horizontally long outer shell 6 of the air conditioner 5 has a horizontally elongated upper air outlet 6a, a wide suction port 6b, and a horizontally elongated narrow air outlet 6b. Lower outlet 6c
Are formed, and a duct outlet 6d is formed on the bottom surface. Inside the outer shell 6, the heat exchanger 8 is arranged in two parts, a first heat exchanger 8a and a second heat exchanger 8b.
An upper fan 7 for forcibly blowing temperature-controlled air to the outside is arranged corresponding to the heat exchanger 8a, and a similar lower fan 9 is arranged corresponding to the second heat exchanger 8b. Further, a louver 11 capable of switching the wind direction is disposed at the lowermost portion between the lower outlet 6c and the duct outlet 6d.

Next, the operation of this embodiment will be described with reference to FIGS. FIG. 3 is a flowchart at the time of the heating operation, and FIG. 4 is a diagram showing a relationship between the room temperature, the floor surface temperature, and the operation state. As shown in FIGS. 3 and 4, at the time of "starting operation", since the room temperature is significantly lower than the target temperature, warm air is blown from both the upper outlet 6a and the lower outlet 6c. In particular, the lower outlet 6a is controlled so as to blow out in the direction of the floor surface to warm the floor surface and to warm the feet, so that the air volume of the lower fan 9 is larger than that of the upper fan 7 (step S1).

Next, when the room temperature approaches the target temperature ("interim period"), air is blown out from both the upper outlet 6a and the duct outlet 6d. Control is performed by the upper outlet 6a so as to satisfy the indoor load (to maintain the indoor temperature), and warm air flows from the duct outlet 6d so as to warm the flooring 2 surface (step S2).

When the floor surface temperature rises and reaches the target value of the floor surface temperature ("stable period"), the blowing from the upper outlet 6a is stopped, the blowing is performed only from the duct outlet 6d, and the duct passes through the duct path 4. Thereafter, the air is blown into the room from the duct end outlet 12. The control at this time is controlled based on the floor surface temperature and the room temperature (step S3). This is because when the outdoor load increases and the heat loss from the lower part of the duct rises,
This is because not only the amount of heat supplied to the duct path 4 cannot sufficiently warm the floor surface, but also the indoor temperature does not decrease.

For this reason, a change in the floor surface temperature and a change in the room temperature are constantly measured, and if the indoor load cannot be covered by the duct blowing only (only the floor heating) ("when the indoor environment suddenly changes"), the upper outlet 6a Is used to control the room temperature to be maintained at the target value (step S4).

In the summer, indoor air conditioning is basically performed using the upper outlet 6a and the lower outlet 6c as shown in FIG. However, floor cooling can be performed according to the user's preference. In this case, since dew condensation inside the duct path 4 and the surface of the duct path 4 becomes a problem, the floor cooling operation may be performed after the indoor humidity is reduced to a specified value.

The operation state of the floor cooling operation is shown in FIG.
It is shown in (B). In the case of performing the floor cooling operation, if the wind speed of the duct end outlet 12 is low, the cool air tends to accumulate at the feet, so that a method of increasing the wind speed of the duct end outlet 12 is used, or the upper outlet 6a is also used. It is necessary to convect indoor air.

(2) Second Embodiment By the way, in the first embodiment, when constructing the floor radiation system, it is general that the carpenter and the air conditioner only perform work that is shared by themselves. . For this reason, errors within an allowable range are accumulated in the work of each occupation, and the following inconvenience may occur. This disadvantage will be described in detail.

In the first embodiment, as shown in FIG. 1, the duct path 4 is divided by the joist 3, and the duct path 4 is provided with air from the air conditioner 5 as shown by a dotted line in FIG. Are formed in parallel to the blowing direction.
Therefore, at the time of blowing out from the air conditioner 5, the two right and left paths 14 and 14 are arranged so that air flows along the duct path 4 of the parallel path.
It is preferable to equally divide the flow into a and 14b. In the case of FIG. 7, the two right and left paths 14
Although there is a possibility that the flow can be evenly divided into a and 14b, the following inconvenience may occur.

FIG. 8 shows a procedure for installing the floor radiation system of the first embodiment. As shown in FIG. 8, after the joists 3 and the heat insulating material 21 are installed on the control panel 1, the flooring 2 is attached. A hole 2a is previously formed in the flooring 2 where the air conditioner 5 and the duct end outlet 13 are to be installed. The work up to this point is performed by a carpenter. Next, the air conditioner installs the air conditioner 5 so as to match the hole 2 a and forms the duct end outlet 12 from the upper surface of the flooring 2.

As described above, the work of the carpenter and the work of the air conditioner are separated. Therefore, even if each worker performs according to his or her own construction specifications, depending on the accumulation of the permissible errors of each construction, the duct route 4 shown in FIG. There is. The second embodiment is a case where the inconvenience due to the accumulated error is eliminated.

FIG. 9A is an enlarged vertical sectional view of the lower portion of the air conditioner 5, and FIG. 9B is a perspective view of the air conditioner 5 as viewed from the bottom side. As shown in FIGS. 9A and 9B, a straightening plate 22 that can swing in the left-right direction Q is provided at the duct outlet 6d. By changing the angle of the current plate 22, the flow is divided into right and left.

In this way, the degree of the shunt can be adjusted by adjusting the angle of the rectifying plate 22 even if the shunt is not uniform after the installation work is completed. In addition, since the construction error at the time of manufacturing the floor is corrected by this adjustment, the performance of the equipment is improved.

(3) Third Embodiment This embodiment is an example in which there are a large number of branch routes of the duct route 4. FIG. 10 shows a case where there are four branch routes 4a to 4d. In this case, the flow is divided using the flow dividing unit 23 shown in FIGS. 11A and 11B. FIG. 11B is a cross-sectional view seen from the arrow Y direction.

As shown in FIGS. 11A and 11B, the flow dividing unit 23 is a thin rectangular parallelepiped having substantially the same floor area as the bottom surface of the air conditioner 5. A first outlet 23a having substantially the same size as the bottom outlet 6d of the air conditioner 5 is formed on the upper surface of the branch unit 23, and the second outlet 2 is similarly provided on the left side.
3b, third and fourth outlets 23c and 23d on the front side,
A fifth outlet 23e is formed on the right side surface.

Further, a first rectifying plate 24 having a substantially T-shape as viewed from above is disposed inside the diverting unit 23, and air is diverted to the second to fifth outlets 23b to 23e substantially uniformly. To do it. 25 to 28 are the second to fifth outlets 23b
It is a current plate arranged corresponding to ２３23e. The air flow is controlled by adjusting the degree of opening of these current plates 25 to 28.

Then, as shown in FIG. 12, the carpenter attaches the flooring 2 to the branch unit 23, and then installs the air conditioner 5 on the branch unit 23.

As shown in FIGS. 13 (A) and 13 (B), even if the diverting paths are, for example, six paths 4a to 4f, diverting is possible by using the first and second joint devices 31 and 32. Becomes

In this case, the dividing unit 33 is provided with first to seventh outlets 33a to 33g on the upper surface and on each side surface, and the second outlet 33b corresponds to the first dividing passage 4a via the first dividing unit 31. And the third to seventh outlets 3
3c to 33g are respectively connected to the second to sixth branch paths 4b to 4f.
To correspond to.

In the branch unit 33, the second to third
A rectifying plate 34 formed with irregularities is provided so that air can be blown out evenly from the seventh outlets 33b to 33g. By using the branch unit having such a configuration, it is possible to cope with a duct path having a large number of branches, and to maintain the performance of the device.

(4) Fourth Embodiment The present embodiment is an example in which, when there are a large number of branch routes of a duct route, an arbitrary branch route is selected from among them to perform air conditioning. FIG. 14 is a perspective view when the louver 41 used in the present embodiment is attached to the air conditioner 5A.
(A)-(D) are conceptual diagrams when the louver 41 is operated.

As shown in FIGS. 14 and 15 (A) to (D), a louver 41 having a fan-shaped cross section is disposed below the air conditioner 5A by cutting off the cylindrical portion of the cylindrical member. An air outlet 6e is formed on the bottom surface of the air conditioner 5 near the rear side. The louver 41
Is formed with an elongated first outlet 41a for full opening having a width substantially equal to the width of the outlet 6e. Similarly, on the left half of the louver 41, a second outlet 41b is formed parallel to the first outlet 41a by a predetermined width, and further on the right half, a predetermined width relative to the second outlet 41b. Third outlet 4
1c is formed. The louver 41 having such a configuration is rotatably attached to a lower portion of the air conditioner 5A via a shaft 42, and is rotatable by a motor (not shown).

Next, the operation will be described. It is assumed that the air conditioner 5A is installed as shown in FIG. 10 and air is flown by selecting the branch routes 4b and 4c. By rotating the motor,
The louver 41 is set at the position shown in FIG. In this position, since the third outlet 41c corresponding to the right branch path 4c corresponds to the air outlet 6e of the air conditioner, the air from the air conditioner 5A is blown out only to the branch path 4c (only the right side blows out).

Similarly, when the louver 41 is at the position shown in FIG. 15B, air is blown out only from the second outlet 41b corresponding to the branch path 4b (only the left side blows out, see FIG. 16).
At the position shown in FIG. 15C, air is blown out from the first outlet 41a corresponding to the branch routes 4b and 4c, so that air blows out to both of the branch routes 4b and 4c (the entire duct route blows out). Further, at the position shown in FIG. 15D, the portion of the louver 41 where the air outlet is not formed (that is, the fully closed portion) blocks the air outlet 6e, so that air blows out from the lower air outlet 6c to the floor surface ( Direct blowing).

In this manner, a branch path of the duct path can be selected, and partial floor heating can be performed.

When the partial floor heating operation is performed, the indoor air-conditioning load cannot be covered, and the indoor temperature may decrease. In this case, the air is blown out also from the upper air outlet 6a, and control is performed so that the room temperature does not decrease (FIG. 17A,
(B)). In addition, the idea of using the blowout from the upper outlet 6a when the indoor air-conditioning load cannot be covered,
Example of the second embodiment (louver having a flow dividing function),
The present invention is also applicable to the case of the embodiment (shunt unit).

(5) Fifth Embodiment This embodiment is directed to a case where air is blown out to the duct path 4 using the lower air outlet 6a of the air conditioner 5. As shown in FIG. 18, the branch unit 4 is provided at the lower outlet 6a of the indoor unit 5.
5 is arranged. The branch unit 45 is configured to introduce the air blown out from the lower outlet 6a to the outlet 13a in the duct path.

FIG. 19 is a diagram showing a heating control method of the floor radiation system. As shown in FIG. 19, when the operation is started, the room temperature is significantly lower than the target temperature, so that warm air is blown out from the upper outlet 6a (during start-up).

When the room temperature is close to the target temperature, the outlets are changed from the upper outlet 6a and the lower outlet 6c to the branch unit 4.
5 → Duct route 4 Control is performed to satisfy the indoor load (to maintain the indoor temperature) at the upper outlet 6a,
Warm air flows from the duct outlet 13a so as to warm the flooring surface (interim period). When the floor surface temperature rises and reaches the target value of the floor surface temperature, the blowing from the upper air outlet 6a is stopped, the air is blown out only from the duct air outlet 13a, and after passing through the duct path 4, the indoor air flows from the duct end air outlet 12 to the room. Blow out. The control at this time is controlled based on the floor surface temperature and the room temperature (a stable period).

This is because when the outdoor load increases and the heat loss from the lower part of the duct increases, not only the amount of heat supplied to the duct cannot sufficiently heat the floor surface, but also the indoor temperature decreases. Also.

For this reason, a change in the floor surface temperature and a change in the room temperature are always measured, and when the indoor load cannot be covered only by duct blowing (only floor heating), the upper outlet 6a
Is used to control the room temperature to be kept at the target value (at the time of sudden change).

In the summer season, as shown in FIG. 5, indoor air conditioning is basically performed using only the upper outlet 6a. However, floor cooling can be performed according to the user's preference. In this case, since dew condensation in the duct route 4 and on the surface of the duct becomes a problem, the floor cooling operation is performed after the indoor humidity is reduced to a specified value. As shown in FIGS. 6A and 6B, the operating state of the floor cooling operation employs a means for uniformly convection of the indoor air.

Further, as shown in FIG. 20, a configuration may be employed in which a rectifying plate 46 is provided in the flow dividing unit 45. The rectifying plate 46 has an area that substantially covers the floor-side opening of the flow dividing unit 45, and the amount of blown air can be adjusted by adjusting the opening of the rectifying plate 46. In this way, fine adjustments can be made after the installation of the equipment to enhance the shunt performance,
In addition, since the diversion function is provided on the entire surface of the air conditioner (the entire lower front area), fine adjustment of the diversion is easy.

(6) Sixth Embodiment As shown in FIG. 21, a branch unit 47 is attached to the entire surface of the lower outlet 6c of the air conditioner 5, and can be blown out to the duct path 4 via the duct end outlet 13a. . A damper 48 is provided in the flow dividing unit 47, and by switching the damper 48, it is possible to select the direct blowing from the direct blowing port 48a provided on the front surface of the flow dividing unit 47 or the duct blowing. The control method of the present embodiment is the same as that of the first embodiment.

Also, the rectifying plate 46 is provided in the branch unit 47.
If (see FIG. 20) is provided, fine adjustment for improving the shunt performance becomes possible after the equipment is installed. Since the diversion function is provided on the entire surface of the air conditioner 5 (the entire lower front area), fine adjustment of the diversion is easily performed.

(7) Seventh Embodiment FIG. 22 shows an embodiment of the present invention.

The air blown from the air conditioner 5 is blown into the room through the duct path 4 and from the duct end outlet 12. A fan 49 whose rotation speed can be adjusted is attached to the duct end outlet 12. This has the following effects.

By attaching the fan 49,
The air volume in the duct path 4 increases. With the fan 9 of the air conditioner 5 alone (see FIG. 2), even if the duct path 4 cannot maintain the air flow due to the pressure loss in the duct path 4 and cannot generate the air flow, the fan 49 can maintain the air flow to maintain the performance. Can be issued.

Since the rotation speed of the fan 49 can be adjusted,
Even if the adjustment for making the flow split by the flow splitter is insufficient, the number of rotations can be adjusted to make the blowout air volume uniform. Therefore, the flow can be uniformly distributed.

(8) Eighth Embodiment As shown in FIGS. 34 and 35 of the conventional example, the air conditioner 1
As going from 01 to the duct end outlet 107, the air temperature in the duct path 106 gradually decreases, and the floor surface temperature also gradually decreases. In order to make the floor surface temperature uniform, the duct path 106
It is necessary to increase the amount of heat transfer by increasing the heat transfer coefficient in the inside.

Therefore, as shown in FIGS. 23A and 23B, a panel 5 having a fin 51a inside the duct path 4 is provided.
24, and as shown in FIGS. 24A and 24B, the number of fins was changed from the air conditioner 5 side to the duct end outlet 12 (the number of fins increased as the distance from the air conditioner 5 increased). Increase). That is, the lower part of the duct (the duct path 4) is formed by the joist 3 and the heat insulating material 21, and the panel 51 having the fin 51 a on the upper part of the duct path 4.
And paste the flooring 2 on it.

In this way, the heat transfer coefficient changes, the heat transfer coefficient is set low on the air conditioner 5 side, the heat transfer coefficient is set high on the duct end outlet 12, and the amount of heat transferred to the floor surface is reduced. In turn, the floor temperature becomes uniform.

(9) Ninth Embodiment FIG. 25 is a view of the ninth embodiment viewed from above.
Is indicated by an alternate long and short dash line. When the duct path 4 is formed in a reciprocating manner as shown in FIG. 25, a temperature difference occurs inside the duct path 4 between the upstream side and the downstream side as shown by the portions A1 and A2, and the temperature of the floor surface is increased. The difference will increase.

In order to reduce this temperature difference, a single-panel panel 52 straddling two adjacent duct paths as shown in FIG. 26 is placed in a place where the temperature difference between adjacent duct paths is expected to increase. Installed in

In this manner, the upstream panel 52a
Is heated by the air in the duct path, the temperature rises, and the floor surface is warmed. In addition, since the panel 52 has a single configuration, heat is also conducted to the adjacent panel 52b on the downstream side. Therefore,
The panel 52b on the downstream side is heated from the duct path 4,
The temperature rises due to the heat transfer from the adjacent panel 52a and heats the floor surface. As a result, the adjacent floor surface (A
1, A2) The temperature difference becomes smaller, and it becomes more comfortable.

(10) Tenth Embodiment As shown in FIG. 27, there is a need to heat the floor only under the kitchen. However, a large amount of cost is required for floor heating work, and installation is not possible if there is no room for the underside of the floor. The present embodiment is a system that can easily perform floor heating even in the above-described location.

FIG. 28 is a perspective view of this embodiment. As shown in FIG. 28, an outlet 53 of a warm air heater for warming the feet may be provided at the lower part of the kitchen. A floor heating panel 54 is attached to the outlet 53 of the hot air heater via a connection joint to perform floor heating. An outlet 55 having a large opening area is provided at an end of the floor heating panel 54.
To form Because of the large opening area, gentle warm air is blown upward.

FIGS. 29A and 29B show floor heating panels 54.
FIG. As shown in FIGS. 29A and 29B,
The floor heating panel 54 is provided with a main path 56 at the center, and a plurality of air paths 57 so as to branch right and left from the main path 56.
Is provided. The floor heating panel 54 is a building member 5 such as a control panel.
A heat insulating sheet 54c made of resin, rubber, or the like is arranged on the upper surface 4b, and an air path 57 is formed by a honeycomb-shaped partition plate 54d that has pressure resistance and has an open air path. A plate 54a is provided.

This arrangement is convenient because it can be easily connected to the outlet 53 of the existing hot air heater, and can be easily connected to other types of hot air heaters by changing the connection joint 58. Floor heating can be done comfortably.

[0080]

As described above, according to the invention described in each claim, in the air conditioner, the upper fan forcibly blows out the temperature-regulated air from the upper outlet into the indoor space, and the lower fan directs the lower part directly. The temperature-controlled air is forcibly blown out from the air outlet and the lower duct air outlet into the duct path, and the first air outlet selecting means selects either the lower direct air outlet or the lower duct air outlet to blow out the temperature-controlled air. So that at least one of the upper fan and the lower fan is controlled based on the indoor environment temperature, and the lower duct outlet includes a first branch unit for diverting conditioned air, In the vicinity of the lower outlet, there is provided a second outlet selecting means capable of selecting one of indoor direct blowing, whole floor blowing, and floor partial blowing, and the whole of the lower direct blowing outlet of the air conditioner is provided. And a second branch unit for connecting the lower direct outlet to the duct path, wherein the second branch unit includes an outlet path selecting unit capable of selecting an indoor direct blow path or a duct blow path. An outlet at the end of the duct path is provided with an outlet fan capable of adjusting the number of revolutions, and a heat transfer unit is provided on the inner surface side of the duct of the floor member constituting the duct path, wherein the heat transfer unit is in accordance with the air path. The air conditioner has a different heat transfer coefficient, branches the duct path into a plurality of sections, arranges the heat transfer means over a duct path adjacent to the branched duct path, and blows air to the air conditioner to blow out temperature-controlled air. The outlet is equipped with air-conditioning air introduction means with a plurality of branch air paths, so that there is no place where air stays during floor heating, the floor surface temperature can be made uniform, and Divert It is possible to partially heat the floor, adjust the amount of air blown from the floor outlet, and prevent the inside of the duct path from condensing during the cooling operation in summer, and reduce the indoor temperature and floor temperature during the heating operation in winter. It is possible to provide a floor radiation system capable of performing floor heating in consideration and securing a comfortable living space.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the air conditioner used in the first embodiment as viewed from the side.

FIG. 3 is a flowchart showing a transition state of air conditioning according to the first embodiment.

FIG. 4 is a diagram showing a relationship among an indoor temperature, a floor surface temperature, and an operation state according to the first embodiment.

FIG. 5 is a diagram showing indoor air conditioning in the summer according to the first embodiment.

FIGS. 6A and 6B are diagrams showing an operation state of the floor cooling operation of the first embodiment, wherein FIG. 6A shows a case where the wind speed at the duct end outlet is increased, and FIG. This is a case where room air is convected.

FIG. 7 is a diagram showing a state where a duct path in the first embodiment is branched.

FIG. 8 is a diagram showing an installation procedure of the floor radiation system of the first embodiment.

9A and 9B are diagrams showing the second embodiment, wherein FIG. 9A is an enlarged vertical sectional view of a lower portion of the air conditioner, and FIG. 9B is a perspective view of the air conditioner as viewed from the bottom side.

FIG. 10 is a diagram showing a case where there are four branch routes of a duct route in the third embodiment.

FIGS. 11A and 11B are views showing a flow dividing unit in the third embodiment, where FIG. 11A is a perspective view and FIG. 11B is a plan view.

FIG. 12 is a perspective view showing an installation state of an air conditioner and a branch unit in the third embodiment.

FIG. 13 is a modified example of the third embodiment, showing a case where there are six branch paths, where (A) is a perspective view and (B) is a plan view.

FIG. 14 is a perspective view of a cylindrical louver according to the fourth embodiment.

FIG. 15 is a view for explaining the operation of the cylindrical louver of the fourth embodiment.

FIG. 16 is a view showing a state in which air is blown out only from an outlet corresponding to a branch path in the fourth embodiment.

17A and 17B are diagrams showing air blowing in the fourth embodiment, where FIG. 17A shows a case where the indoor load is small, and FIG.
Is a diagram when the indoor load is large.

FIG. 18 is a sectional view of the fifth embodiment.

FIG. 19 is a diagram showing a relationship among an indoor temperature, a floor surface temperature, and an operation state according to the fifth embodiment.

FIG. 20 is a sectional view of a modification of the fifth embodiment.

FIG. 21 is a sectional view of the sixth embodiment.

FIG. 22 is a sectional view of the seventh embodiment.

FIG. 23 is a view showing the eighth embodiment, and FIG.
Is a perspective view including a partial cross section, and FIG.

24A and 24B are diagrams showing an application example of the eighth embodiment, wherein FIG. 24A is a diagram in which the number of fins increases as the distance from the air conditioner increases, and FIG. 24B is a perspective view showing how fins are attached. .

FIG. 25 is a plan view showing an arrangement state of joists of a floor to which the ninth embodiment is applied.

FIG. 26 is a partially enlarged view of the ninth embodiment,
(A) is a plan view and (B) is a sectional view.

FIG. 27 is a diagram illustrating a case where a need arises according to the tenth embodiment.

FIG. 28 is a perspective view of the tenth embodiment.

FIG. 29 is a diagram showing a floor heating panel according to the tenth embodiment, where (A) is a plan view and (B) is a cross-sectional view.

FIG. 30 is a perspective view of an air conditioner used in a conventional floor radiation system.

FIG. 31 is a diagram showing the flow of air in a conventional floor radiation system.

FIG. 32 is an enlarged cross-sectional view around an air conditioner of a conventional floor radiation system.

FIG. 33 is a diagram for explaining inconvenience of a conventional floor radiation system.

FIG. 34 is a diagram for explaining the inconvenience of the conventional floor radiation system.

FIG. 35 is a view for explaining inconvenience of the conventional floor radiation system.

FIG. 36 is an explanatory diagram for solving the inconvenience of the conventional floor radiation system.

FIG. 37 is a diagram for explaining inconvenience of the conventional floor radiation system.

FIG. 38 is a diagram for explaining inconvenience of the conventional floor radiation system.

FIG. 39 is a view for explaining inconvenience of a conventional floor radiation system.

FIG. 40 is a diagram for explaining inconvenience of the conventional floor radiation system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 control panel 2 flooring 3 joist 4 duct route 5 air conditioner 6a upper outlet 6c lower outlet 6d duct outlet 7 upper fan 8 heat exchanger 9 lower fan 11, 22 louver 12 duct outlet at duct end 13 duct end Outlet 23 Separating unit 41 Cylindrical louver 51 Panel with fins 52 Panel spanning duct route 54 Floor panel

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroko Hayano 8 Shinsugita-cho, Isogo-ku, Yokohama-shi, Kanagawa Prefecture Inside the Toshiba Living Space Systems Research Institute (72) Inventor Noriko Komoda 8, Shinsugita-cho, Isogo-ku, Yokohama-shi, Kanagawa Address Co., Ltd. Toshiba Living Space Systems Research Laboratory

Claims (11)

[Claims] 1. A floor radiation system in which a duct path is formed under the floor, and temperature-controlled blowing air from an air conditioner flows through the duct path to perform floor radiation air conditioning, wherein the air conditioner is located above the air conditioner. An upper outlet capable of blowing temperature-controlled air into the provided indoor space; an upper fan for forcibly blowing the temperature-controlled air from the upper outlet; and blowing the temperature-controlled air into the indoor space provided below the air conditioner. A lower direct air outlet that can be blown; a lower duct air outlet that can blow out temperature-controlled air to the duct path provided at the lower part of the air conditioner; and a temperature-controlled air that is forced from the lower direct air outlet and the lower duct air outlet. A floor fan comprising: a lower fan for blowing air; and first air outlet selecting means for selecting one of the lower direct air outlet and the lower duct air outlet to blow out temperature-controlled air. System. 2. The floor radiation system according to claim 1, wherein at least one of the upper fan and the lower fan is controlled based on a room environment temperature. 3. The floor radiation system according to claim 1, further comprising a first branch unit for branching conditioned air at the lower duct outlet. 4. The air conditioner further comprising a second outlet selecting means near the lower outlet of the air conditioner, the second outlet selecting means being capable of selecting one of direct indoor blowing, full floor blowing and floor partial blowing. The floor radiation system according to claim 1. 5. The air conditioner further comprises a second branch unit that connects the lower direct air outlet and the duct path over the entire lower direct air outlet.
The floor radiation system according to claim 4. 6. The floor radiation system according to claim 5, wherein said second branch unit is provided with an outlet path selecting means capable of selecting an indoor direct outlet path or a duct outlet path. 7. A floor radiation system which forms a duct path under the floor and flows air blown out of temperature controlled from an air conditioner through the duct path to perform floor radiation air conditioning, wherein: A floor radiation system comprising an outlet fan whose rotation speed can be adjusted. 8. A floor radiation system in which a duct path is formed under the floor and temperature-controlled air blown from an air conditioner flows through the duct path to perform floor radiation air conditioning, wherein a duct of a floor member constituting the duct path is provided. A floor radiation system comprising a heat transfer means on an inner surface side. 9. The floor radiation system according to claim 8, wherein said heat transfer means has a different heat transfer coefficient according to an air path. 10. The floor according to claim 8, wherein the duct path is branched into a plurality of sections, and the heat transfer means is arranged so as to span a duct path adjacent to the branched duct path. Radiation system. 11. A floor radiating system comprising an air-conditioning air introducing means having a plurality of branch air paths at an air outlet of an air conditioner for blowing out temperature-controlled air.