JPH09178208A - Ceiling surface room ventilator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a comfortable ventilation along with a moderate degree of ventilation by discharging pollutant generated from a human body without diffusion. SOLUTION: A plurality of exhaust ports 3 for local ventilation are provided scatteringly on a ceiling surface 2 within a room 1. The exhaust ports 3 are connected to a fan 5 for suction through an opening/closing means 7 of a passage individually. A human body detection sensor 10 for detecting the existence of a man or woman in each section space S is provided at each section space obtained by dividing the space in the room corresponding to the exhaust ports 3. A control means 11 is provided to open the opening/closing means 7 of the exhaust ports 3 corresponding to the human body detection sensor 10 only while a detection signal of the human body detection sensor 10 is ON.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a building such as a house,
In particular, the present invention relates to a ceiling surface indoor ventilation device suitable for highly insulated and airtight houses such as for cold regions.

[0002]

2. Description of the Related Art Proper ventilation in a building such as a house is important for a comfortable habitability and an improvement in building life. In particular, in a highly insulated and airtight house for cold climates, natural ventilation is not sufficient, and forced ventilation is required. As a means for forced ventilation, generally used is one that discharges clean air from a supply port provided at a predetermined position such as a ceiling surface and discharges contaminated air from an exhaust port.

[0003]

The pollutants are mainly caused by indoor combustion gas and gases discharged from building materials, as well as carbon dioxide gas generated by the human body and cigarette smoke. But,
Since people move in the room, if the air is sucked from the exhaust port at a fixed position, an appropriate positional relationship cannot be obtained between the position of the person in the room and the exhaust port on the ceiling surface, so that efficient exhaust cannot be performed. However, there is a problem in that pollutants generated from the human body diffuse into the room. Exhausting air at many points on the ceiling at the same time can solve the problem of diffusion of pollutants generated from the human body, but excessive ventilation increases the air conditioning load during cooling and heating, as well as increases in air flow and uneven flow. Often causes discomfort to a person. This invention is to solve the above problems, and can exhaust the pollutants generated from the human body without diffusing, and can be an appropriate ventilation amount,
It is an object of the present invention to provide a ceiling surface indoor ventilation device that enables comfortable ventilation. Another object of the present invention is to achieve harmony between ventilation and cooling and heating, and to achieve comfortable ventilation and cooling and heating.

[0004]

In the ceiling surface indoor ventilation device of the present invention, a plurality of exhaust ports for local ventilation are dispersedly provided on the ceiling surface in the room, and these exhaust ports are individually opened / closed for the passage. It is connected to a blower for suction through. Also,
Each human body detection sensor that detects the presence of a person in this divided space is provided for each divided space that divides the indoor space corresponding to each exhaust port, and only while the detection signal of the human body detection sensor is on. Alternatively, a control means for opening the opening / closing means of the exhaust port corresponding to the human body detection sensor is provided for the ON period and a predetermined delay time thereafter. According to this configuration, when a person moves in the room, the air is exhausted from the exhaust port of the divided space in which the person is present as the person moves. When a person is in a certain position, the exhaust air above it continues to be exhausted. For this reason, the pollutant generated from the human body is exhausted from the vicinity of the generation place, and it is possible to ventilate without causing diffusion. Further, since exhaust is not performed from the exhaust port where there is no person who is the source of ventilation purpose, wasteful ventilation is not performed and efficient ventilation can be performed. As a result, comfortable ventilation with less indoor airflow can be performed with the minimum required air flow rate. The human body detection sensor is preferably arranged near the exhaust ports on the ceiling surface. As a result, it is possible to reliably detect a person in the target compartment without being obstructed by obstacles.

In the above structure, an air supply port and an exhaust port for base ventilation are further provided on the ceiling surface, and air is supplied from the air supply port and exhaust port for base ventilation regardless of whether the exhaust port for local ventilation is opened or closed. You may provide the base ventilation means which blows out and exhausts. With this, at all times,
Excessive and deficient ventilation should be performed with the minimum ventilation that is desirable regardless of the presence or absence of people, and when a person enters the room, local ventilation that follows the movement of the person should be used together. It is possible to maintain proper ventilation without In the above configuration, when the cooling / heating device is provided, it is desirable to provide the radiant cooling / heating device on the ceiling surface. Radiant cooling and heating can perform comfortable cooling and heating without indoor convection, and unlike cooling and heating that blows cold and hot air, there is no problem of air flow interference between ventilation and cooling and heating, and both cooling and heating are performed appropriately. be able to.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIG. The room 1 is a room provided in a highly heat-insulated and airtight house for cold regions. The ceiling surface 2 has a plurality of exhaust vents 3 for local ventilation dispersed therein, and the ceiling surface 2
An air supply port 4 is provided at one location. The exhaust ports 3 are provided for each of the square ceiling panels 2a arranged vertically and horizontally, and are arranged in a matrix. Each exhaust port 3 is connected to a blower 5 for suction via an exhaust flow path 6 formed of a duct. The exhaust passage 6 is branched for each exhaust port 3,
A damper 7, which is an individual opening / closing means for each exhaust port 3, is provided in each branch exhaust passage 6a. The damper 7 is of a drive type such as a motor or an electromagnetic type. The air supply port 4 is connected to another blower 8 via an air supply passage 9. The exhaust flow path 6 and the air supply flow path 9 are connected to an outdoor exhaust port and an outdoor air supply port (both not shown) via blowers 5 and 8, respectively, and perform heat exchange between exhaust gas and air supply. Heat exchanger (not shown)
It is connected to the.

A human body detection sensor 10 is provided in the vicinity of each exhaust port 3 on the ceiling surface 2, and this sensor 10 divides the indoor space corresponding to each exhaust port 3 into a partitioned space S (see FIG. 1).
(B)) It is set as a detection range for detecting the presence of a person in this divided space S. The partitioned space S is not a space in which partitions are provided between each other, but a range of a space partitioned in a plane, and in this example, corresponds to a planar range of each ceiling panel 2a. It suffices that the detection range of the human body detection sensor 10 approximately corresponds to the divided space S, and it is preferable that the human body detection sensors 10 of both the divided spaces S are turned on near the adjacent portions of the divided space S. .

The control means 11 controls the human body detection sensor 1 only while the detection signal of the human body detection sensor 10 is on.
It is a control means for opening the damper 7 of the exhaust port 3 corresponding to 0, and is composed of an electronic circuit using an integrated circuit, a microcomputer or the like, or a relay type electric circuit. Control means 1
1 may have a delay unit that keeps the damper 7 open for a predetermined delay time even after the human body detection sensor 10 is turned off. Further, the control means 11 turns off the blowers 5 and 8 for air supply and exhaust when all the human body detection sensors 10 are off, and any one of the human body detection sensors 1 is turned off.
It has a function of turning on both blowers 5 and 8 when 0 is turned on. The control means 11 may open and close the damper 7 corresponding to the exhaust port 3 of a predetermined combination in response to the on / off state of each human body detection sensor 10.

The operation of the above configuration will be described. When a person 12 who is for the purpose of ventilation enters the room 1, the human body detection sensor 10 in the divided space S in which the person 12 is present is turned on.
In response to the command No. 1, the damper 7 of the divided space S is opened, and forced exhaust is performed by suction of the blower 5 from the exhaust port 3. When the person 12 moves in the room 1, the exhaust air is exhausted from the exhaust port 3 of the partitioned space S in which the person 12 is present as the person 12 moves, and the exhaust gas from the exhaust port 3 of the partitioned space S where the person 12 left is Be stopped. As described above, since the exhaust is performed following the movement of the person 12, the pollutant generated from the human body is exhausted from the vicinity of the place where the pollutant is generated, and the ventilation is performed without the diffusion of the pollutant. In addition, since exhaust is not performed from the exhaust port 3 where there is no person 12 who is the source of ventilation, wasteful ventilation is not performed and efficient ventilation can be performed. As a result, comfortable ventilation with less indoor airflow can be performed with the minimum required air flow rate.

FIG. 2 shows a second embodiment. This example
The following configuration is added to the embodiment of FIG. That is, in the vicinity of both side edges of the ceiling surface 2, a slit-shaped air supply port 13 and an air outlet port 14 for the base ventilation which extend over substantially the entire length of these side edges are provided. The air supply port 4 of the example of FIG. 1 is not provided, but instead of this, the base ventilation air supply port 13 is provided. The air supply port 13 is provided to the air blower 8 for air supply and the air supply passage 9
The base ventilation exhaust port 14 is connected to the exhaust blower 5 via the exhaust flow path 6. Control means 1
In this example, even if all the human body detection sensors 10 are turned off, in this example, if a predetermined switch (not shown) is turned on, the blowers 5 and 8 are kept on.
The control of each damper 7 by the control means 11 is the same as the example of FIG. The blowers 5 and 8 of the example of FIG. 2 and this blower 5 and
The base ventilation unit 15 is configured by the control function portion of the control unit 11 that keeps the switch 8 always on. The blower 5 for exhaust may be separately provided for local ventilation and base ventilation. Further, in this example, each ceiling panel 2a is
As shown in FIG. 2B, a ceiling radiating panel having a flow path 16 for a heat medium such as cold and hot water is used, and the ceiling surface material of the ceiling panel 2a is a heat dissipation plate having high thermal conductivity such as aluminum. The ceiling radiant panel and the heat medium supply means 17 for circulating the heat medium in the heat medium flow path 16 constitute a radiant cooling / heating device 18.

In the case of this construction, a minimum amount of ventilation is always provided from the air supply port 13 and the exhaust port 14 for base ventilation so that when a person 12 enters the room 1, local ventilation is provided. Local ventilation that follows the movement of a person by the exhaust port 3 is also used. Therefore, it is possible to maintain a proper ventilation state without excess or deficiency. Further, since the cooling and heating are performed by the radiant cooling and heating from the ceiling panel 2a, comfortable cooling and heating can be performed without convection in the room. Moreover, unlike cooling and heating in which cold and warm air is blown out, there is less problem of air flow interference between ventilation and cooling and heating, and cooling and heating and ventilation can both be performed appropriately.

FIG. 3 shows a third embodiment of the present invention.
In this example, the space above the ceiling is divided into a plurality of functional chambers 19 that are vertically and horizontally arranged and open on the lower surface.
Alternatively, some of the functional chambers 19 are provided with the exhaust port 3 or the air supply port 4. In the functional chamber 19, there is provided a functional unit 20 including at least one of dehumidifying means, cooling / heating means, and air cleaning means. For the heating means of the functional unit 20, for example, an electric heater is used.
Some of the function chambers 19 communicate with other function chambers 19 indoors via a blower, and these function chambers 19 are used as blow-out side function chambers and suction side function chambers for indoor circulation. Is also good.
The lower surface opening of the functional chamber 19 is covered with a functional film 21 such as a breathable cloth. The indoor space for local ventilation is divided into a combination of the functional chamber 19 of the functional chambers 19 in which the exhaust port 3 is opened and the suction side ventilation chamber 19 for indoor circulation, and Correspondingly divided, and the human body detection sensor 10 is provided for each of the divided spaces as in the example of FIG. Further, a control means (not shown) for opening a damper (not shown) serving as an opening / closing means of the exhaust port 3 corresponding to the human body detection sensor 10 only while the detection signal of the human body detection sensor 10 is ON. It is provided with an electronic circuit or an electric circuit. In the case of this configuration, in addition to the ventilation following the movement of a person similar to the example of FIG. 1, it is possible to circulate the air indoors to purify the air and to perform the heating and cooling by the air purifying function of the functional chamber 19. .

FIG. 4 is a ceiling panel 2 of the example of FIG. 1 or 2.
The ceiling panel with a built-in duct used as a is shown. The ceiling panel 25 is made of a heat-insulating foamed resin, and has an exhaust port 3 opening on the lower surface and an in-panel duct 26 communicating with the exhaust port 3 and opening on the panel end surface. Since the duct 26 is formed in the ceiling panel 25 in this manner, it is not necessary to provide another duct or perform heat insulation treatment on the duct, and the workability is good. In addition, the cost can be reduced.

[0014]

The ceiling surface indoor ventilation device of the present invention is provided with a plurality of exhaust ports for local ventilation dispersed on the ceiling surface in the room, and these exhaust ports are individually sucked through the opening / closing means of the flow path. The human body detection sensor that detects the presence of a person in each compartment is connected to the ventilation fan for each exhaust port, and the detection signal of the human body detection sensor is turned on. Since the control means that opens the opening / closing means of the exhaust port corresponding to the human body detection sensor is provided only during the period, the pollutant generated from the human body can be exhausted without being diffused, and the ventilation volume is appropriate. It is possible to do comfortable ventilation. In the above configuration, when the human body detection sensor is installed near each exhaust port on the ceiling surface, it is possible to reliably detect the person in the target divided space without being obstructed by the obstacle. In addition, an air supply port and exhaust port for base ventilation are provided on the ceiling so that air is blown and exhausted from the air supply port and exhaust port for base ventilation regardless of whether the exhaust port for local ventilation is opened or closed. When the ventilation means is provided, more effective ventilation can be performed by combining the base ventilation of the entire room and the local ventilation that follows the movement of people. Furthermore, when a radiant cooling / heating device is provided on the ceiling surface, radiant cooling / heating can be used for comfortable cooling / heating, and there is less problem of interference between the airflow and ventilation flow for cooling / heating.
Both air conditioning and ventilation can be performed properly.

[Brief description of the drawings]

FIG. 1A is a perspective view showing a conceptual configuration of a ceiling surface indoor ventilation device according to an embodiment of the present invention, and FIG. 1B is an explanatory view of its divided spaces.

FIG. 2A is a perspective view showing a conceptual configuration of a ceiling surface indoor ventilation device according to another embodiment of the present invention, and FIG. 2B is an explanatory view of the ceiling radiation panel thereof.

FIG. 3 is a sectional view showing a conceptual configuration of a ceiling surface indoor ventilation device according to still another embodiment of the present invention.

FIG. 4 is a perspective view of a ceiling panel with a duct that can be used in each embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Room, 2 ... Ceiling, 3 ... Exhaust port, 4 ... Air supply port, 5 ... Blower, 6 ... Exhaust flow path, 10 ... Human body detection sensor, 11 ... Control means, 13 ... Base ventilation air supply port, 14 ... Exhaust port for base ventilation, 15 ... Base ventilation means, 18 ... Ceiling radiant cooling / heating device

Claims (4)

[Claims] 1. A plurality of exhaust vents for local ventilation are dispersedly provided on a ceiling surface in a room, and these exhaust vents are individually connected to a blower for suction through an opening / closing means of a flow path, and each of the exhaust air is exhausted. A human body detection sensor for detecting the presence of a person in each of the divided spaces, which divides the indoor space corresponding to the mouth, is provided.
The ceiling surface provided with a control means for opening the opening / closing means of the exhaust port corresponding to the human body detection sensor only while the detection signal of the human body detection sensor is on, or for the on period and a predetermined delay time thereafter. Indoor ventilation system. 2. The ceiling surface indoor ventilation device according to claim 1, wherein the human body detection sensor is installed near each exhaust port on the ceiling surface. 3. An air supply port and an exhaust port for base ventilation are provided on a ceiling surface, and air is blown from the air supply port and the exhaust port for base ventilation regardless of whether the exhaust port for local ventilation is opened or closed. The ceiling surface indoor ventilation device according to claim 1 or 2, further comprising a base ventilation means for exhausting air. 4. The ceiling surface indoor ventilation device according to claim 1, 2 or 3, wherein a radiant cooling / heating device is provided on the ceiling surface.