JPH0275844A - Ventilating device - Google Patents

Abstract

PURPOSE:To avoid useless operation and effect operation without providing habitants with uncomfortable feeling by a method wherein a ventilating unit is not driven when no habitant exists in a room ad a room temperature is low while the ventilating unit is driven when an outdoor humidity is lower than an indoor humidity. CONSTITUTION:When a signal from a human detecting and processing unit 2 is inputted into a control unit 3 and it is judged that no habitant exists in a room, a ventilating unit 10 is stopped after counting a time (t). When the habitant exists in the room and a detecting humidity (as) is smaller than a set humidity (alpha1), the ventilating unit 10 is stopped based on a signal from an indoor humidity processing unit 5. When a detecting temperature Ts is higher than a set temperature beta, the ventilating unit 10 is stopped based on a signal from a temperature processing unit 7. When the detecting temperature Ts is higher than the set temperature beta, the ventilating unit 10 is operated to start ventilation and judgement of 'whether a habitant exists or not?' is effected again after counting a time T. The time T becomes the degree of 1-2 minutes when a purpose is to prevent chattering only while the time T becomes longer than 5 minutes when the purpose is the ventilation for a given period of time.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a ventilation system for ventilating the air in a room, and is particularly suitable for a living room or the like.

(b) Prior art As a technology prior to the present invention, Utility Model Application Publication No. 57-147599
There is an automatic operation device for ventilation fans described in the publication. The automatic operation device automatically starts operating the ventilation fan when the person detection unit detects the presence of a person in the room.

However, when the indoor temperature is low, the ventilation fan is operated, making the occupants feel cold and uncomfortable.

Furthermore, there is an automatic operation device for a ventilation fan described in Japanese Utility Model Publication No. 52-49545. The self-driving device senses humidity and operates the ventilation system, which wastefully operates regardless of the presence of a person and does not take room temperature into account, as with the previous technology mentioned above. This causes discomfort to the occupants.

Furthermore, there is a temperature adjustment method described in Japanese Patent Publication No. 55-6809. The temperature adjustment method is to automatically operate the ventilation fan at room temperature, which results in unnecessary operation regardless of the presence of a person, and does not take into account humidity, which people feel uncomfortable, resulting in unnecessary operation.

(...) Problems to be Solved by the Invention The technical problem of the present invention is to provide a ventilation system that does not operate unnecessarily and does not cause discomfort to the occupants. It is.

(d) Means for Solving the Problems The present invention includes a blower unit that exhausts indoor air to the outside, a person detection unit that detects the presence of a person indoors, an indoor humidity detection unit that detects indoor humidity, and a temperature detection section that detects the indoor temperature, the presence of a person is detected by the human detection section, and the indoor humidity detection section detects the presence of a person; The problem is solved by the first means of driving the blower section when this is the case.

Further, the present invention includes a blower unit that exhausts indoor air to the outdoors;
A person detection section that detects the presence of a person indoors, an indoor humidity detection section that detects indoor humidity, and an outdoor 1 that detects outdoor humidity.
Equipped with an 8 degree detection section and a temperature detection section that detects the indoor temperature, the human detection section detects the presence of a person, and the difference between the humidity detected by the indoor humidity detection section and the outdoor humidity detection section) is greater than the set difference value, and the temperature detected by the temperature sensor is greater than or equal to the set temperature, the problem is solved by the second means for driving the air blower.

Further, the third means having both the first means and the second means, that is, the presence of a person is detected by the human detection section, and the detected humidity by the indoor humidity detection section is equal to or higher than the set humidity, and the indoor humidity detection section detects the presence of a person. Humidity detected by and detected by outdoor humidity detection unit) 8
The problem can also be solved by means of driving the air blower when the difference between the temperature and the temperature is equal to or higher than the set difference value and the temperature detected by the temperature detection section is equal to or higher than the set temperature. It is included in the scope.

(N) Function The present invention has the advantage that each means does not operate the air blower when no one is present in the room, thereby avoiding wasted power consumption, and also prevents the air blower from operating when the room temperature is low, causing cold to the occupants. I don't feel it.

In the first means, when the indoor humidity is high, the ventilation section is driven to eliminate discomfort caused by humidity.

In the second means, by driving the ventilation section when the outdoor humidity is lower than the indoor humidity, low-humidity outdoor air is taken into the room by negative pressure from the outdoors.

(f) Example No. 1111 shown in Figures 1 and 2, wE3 and 4
The present invention will be explained based on the second tlll structure shown in the figure and the third tlll structure shown in FIGS. 5 and 6.

The first purchase will be explained.

FIG. 1 is a 70-chart, and FIG. 2 is a block circuit diagram.

The signal detected by the human detection object 1 is processed by the human detection processing section 2 to determine the presence of the person, and is sent to the control section 3 as a signal indicating the presence or absence of the person. The human detection body 1 and the human detection processing section 2 form a human detection section.

The signal detected by the indoor humidity detector 4, the detected humidity aS, is the set humidity Q1 preset by the indoor humidity processing unit 5.
A determination process is performed to determine whether the indoor humidity as is greater than the set humidity 01, and a signal is sent to the control unit 3 as a signal indicating whether or not the indoor humidity as is greater than or equal to the set humidity 01. The indoor humidity detecting body 4 and the indoor humidity processing section 5 form an indoor humidity detecting section.

The signal detection temperature Ts detected by the temperature sensor 6 that detects the indoor temperature Ts is processed by the temperature processing unit 7 to determine whether it is larger than the preset temperature β, and the control unit 3 is informed that the indoor temperature Ts is higher than the preset temperature β. It is sent as a signal indicating whether or not the temperature is higher than the set temperature β. The temperature sensing body 6 and the temperature processing section 7 form a temperature sensing section.

The control unit 3 performs processing based on the flowchart shown in FIG.
A control signal is output to the drive control unit 11 that controls the stoppage of the drive control unit 10.

The operation will be explained based on FIG.

When the signal from the human detection processing unit 2 is input to the control unit 3, “
If there is no person in the room, a determination is made as to whether there is someone in the room, and if there is no person in the room, the
”, the blower unit 10 is stopped after the time has been counted. The purpose of timing is to ventilate the room after no one is in the room, and then stop the room in a better condition.

If there is a person in the room rYEsJ, based on the signal from the indoor humidity processing unit 5, it is determined whether "detected humidity as>set humidity α1", and the detected humidity as is smaller than the set humidity α.
If it is NOJ, the humidity does not require ventilation, so the blower unit 10 is stopped. If the detected humidity as is greater than the set humidity a and is ryESj, then the signal from the temperature processing section 7 is processed.

Based on the signal from the temperature processing unit 7, it is determined whether "detected temperature Ts > set temperature β", and if the detected temperature Ts is smaller than the set temperature β (rNOJ), the occupants will feel cold when ventilation is performed. The blower section 10 is stopped because it may cause discomfort.

If the detected temperature Ts is greater than the set temperature β, YES.

If so, ventilation will not cause discomfort, so the ventilation section 10 is operated to start ventilation, and after one hour's time measurement, the process returns to determining whether there are r people present. The 1-hour timer prevents the blower 10 from stopping (chattering) in a short period of time if the changes in the detected humidity as and the detected temperature Ts are large due to one person entering and exiting or opening and closing the door or window of the room. At the same time, ventilation for a certain period of time is carried out because it is necessary once ventilation of the room has begun. If only to prevent chattering, one hour would be about 1 to 2 minutes9.-If ventilation was performed at a fixed time, one hour would be more than 5 minutes.

In the first structure, ventilation is required when a person is present in the room, and ventilation (ventilation unit 10 is operated) is not performed until the humidity is higher than the humidity that the person feels uncomfortable and the room temperature is such that the person does not feel uncomfortable even after ventilation. It is something.

2 Hakuzo in Figures 3 and 4, and 3 in Figures 5 and 6.
Regarding the structure, the ventilation unit 10 consisting of the human detection body 1, the human detection processing unit 2, the temperature detection body 6, the temperature processing unit 7, the drive control unit 11, the electric motor 8, and the ventilation blades 9 has the same configuration, Control unit 15 of the second structure and control unit 1 of the 3111th structure
The processing based on the input from the human detection processing section 2 and the temperature processing section 7 performed in G is the same and was explained in the first HX construction, so it will be omitted and only the main points will be explained.

The second purchase will be explained.

The second structure has an indoor humidity sensor f$4 and an outdoor humidity sensor 17, and the difference as-b between the indoor humidity as detected by the indoor humidity sensor 4 and the outdoor humidity bs detected by the outdoor humidity sensor 17.
The indoor/outdoor humidity difference processing unit 18 determines whether s is larger than the set difference value α, and sends a signal to the control unit 15 as a signal indicating whether the indoor/outdoor humidity difference as-bs is larger than the set difference value α. Sent.

In the second Hakuzo, the first Tll construction is “Detected humidity as > Set humidity α”
Instead of determining IJ, it is determined that "indoor detected humidity 18 degrees as - outdoor detected humidity bs > set difference value α," and if outdoor detected humidity bs is lower than indoor detected humidity as by set difference value α8 or more The blower section 10 is operated at the same time.

Therefore, when ventilation is performed at the ventilation unit IO, high humidity outdoor air will not flow into the room due to the pressure difference between indoor and outdoor.
Low-humidity outdoor air flows in to provide ventilation that does not cause discomfort.

The JtE3 structure is a structure that combines the $1 structure and the second structure, and includes an indoor 13 degree sensor 4, an outdoor humidity sensor 17, an indoor humidity processor 5, and an indoor/outdoor humidity difference processor 18. .

The control unit 16 determines that “detected temperature as>set humidity α,” and also determines that “indoor detected humidity as−outdoor detected humidity bs>”
This is to determine the set difference value alJ, and to perform ventilation that can be said to be more comfortable.

For the human detection body 1 used in each structure, a pyroelectric infrared sensor or the like is used. As for the humidity sensor 4.17 and the humidity sensor 6, well-known and well-known devices can be used. Human detection processing unit 2, humidity processing unit 5, temperature processing unit 7, humidity difference processing unit] 8, control unit 3, 15, 16, and drive control unit 11 include resistors and comparators for obtaining set values, It is formed using a microcomputer, etc., and the individual circuits are publicly known.
It is formed using a well-known circuit.

Note that the set humidity a1, the set difference value α2, and the set temperature β may be changed manually as appropriate.

()) Effects of the Invention In the present invention, operation is performed only when there is a person in the room, and unnecessary operation is not performed, efficient operation is performed, and ventilation is performed that does not cause discomfort by taking into account humidity and temperature. .

[Brief explanation of the drawing]

The figures show the present invention, and Fig. 1 is a flowchart of the first structure, Fig. 2 is a block circuit diagram of the same, Fig. 3 is a flowchart of the second structure, Fig. 4 is a block circuit diagram of the same, and Fig. 5 is a flowchart of the first structure. Third
FIG. 6 is a block circuit diagram of the flowchart of the tll construction. l...Human detection object, 2...Human detection processing unit, 3.15.
16...Control unit, 4...Indoor humidity detector, 5...
Indoor humidity processing unit, 6... Temperature sensing body, 7... Temperature processing unit, 10... Ventilation unit, 17... Outdoor humidity sensing body,
18... Indoor/outdoor humidity difference processing section.

Claims (1)

[Scope of Claims] 1. A blower unit that exhausts indoor air to the outside, a person detection unit that detects the presence of a person indoors, an indoor humidity detection unit that detects indoor humidity, and an indoor temperature detection unit. When the presence of a person is detected by the human detection part, the humidity detected by the indoor humidity detection part is higher than the set humidity, and the temperature detected by the temperature detection part is higher than the set temperature, the ventilation part is activated. A ventilation system that is driven. 2. A ventilation unit that exhausts indoor air to the outdoors, a person detection unit that detects the presence of a person indoors, an indoor humidity detection unit that detects indoor humidity, and an outdoor humidity detection unit that detects outdoor humidity. , a temperature detection unit that detects indoor temperature, the presence of a person is detected by the person detection unit, and the difference between the humidity detected by the indoor humidity detection unit and the humidity detected by the outdoor humidity detection unit is equal to or greater than a set difference value, A ventilation device that drives the blower when the temperature detected by the temperature sensor is equal to or higher than the set temperature.