JPH0849899A - Factory air conditioning system - Google Patents

Abstract

PURPOSE:To eliminate a useless operation, enable a local air conditioning to be carried out for a plurality of persons and impart the comfortableness by a method wherein a person faces an outlet in response to a person position signal and an amount of blowing air from a fan is varied according to a distance signal. CONSTITUTION:A person position sensing sensor 15 detects IR rays produced by a person and outputs a person position sensing signal Sb to an operation control device 18. A stepping motor 16 is also driven in response to a direction signal given from the operation control device 18 connected to the motor to the driving circuit B19. The operation control device 18 outputs a driving signal to a driving circuit A17 and a driving circuit B19 in response to each of the signals obtained from the person position sensing sensor 15. An air conditioning blower receives a person position sensing signal Sb from the person position sensing sensor 15 and outputs a speed signal Sa to the driving circuit A17 for the motor 8 and outputs a direction signal Sc to the driving circuit B19 for the stepping motor 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a factory air conditioning system.

[0002]

2. Description of the Related Art In recent years, the working environment in factories has been improved, and particularly in air conditioning, not only temperature improvement but also comfortable air conditioning is required, and at the same time energy saving is required.

Conventionally, this type of factory air conditioning system is shown in FIG.
It was as shown in As shown in the figure, the air conditioner 1
The warm air or cold air from 01 passes through the air conditioning duct 102 arranged on the lower surface of the factory ceiling, and blows out into the factory from the air outlet 103 installed on the side surface or the lower surface of the air conditioning duct 102, and the entire air conditioning or local air conditioning of the site is performed. Was being conducted.

[0004]

In such a conventional factory air-conditioning system, a relatively large space is air-conditioned during overall air-conditioning, so that the room temperature does not drop in the summer and, conversely, the room temperature may be reduced. Then, there was a problem that a huge amount of energy had to be used. Further, during the local air conditioning, since the direction of the outlet 103 is fixed, there is a problem that if the wind continues to hit the worker, it will be too cold, or if the wind is not directly applied, a cool feeling cannot be obtained.

The present invention is intended to solve the above-mentioned problems, and it is possible to automatically operate by selecting the blowing direction and the blowing air amount based on the detection state of the human position detecting sensor, and thus the situation of wasteful driving is obviated. It is a first object to provide a factory air conditioning system that can be prevented.

A second object is to allow a wide range of local air conditioning for a plurality of workers by means of the swinging mechanism of the air outlet, and to improve comfort by intermittently applying wind to the workers. It is in.

[0007]

In order to achieve the first object, the factory air conditioning system of the present invention comprises:
In a factory air-conditioning system that blows warm air or cold air from an air conditioner into an air conditioning duct arranged on the lower surface of the ceiling, and supplies the warm air or cold air into the factory from an outlet connected to the air conditioning duct, a motor for driving a fan , A person position detection sensor that detects the presence and position of a person and outputs a person position signal and a distance signal, and performs automatic operation to drive the motor based on the person position signal from the person position detection sensor. An air-conditioning blower having an operation control device that automatically directs the outlet toward a person and changes the amount of air blown from the fan based on the distance signal is provided.

Further, in order to achieve the second object, the second means is configured such that the air outlet can be swung at any angle to the left and right around the person position.

[0009]

According to the present invention, by the structure of the above-mentioned first means, it is possible to change the amount of air blown only in the portion where the worker is, and further in accordance with the distance from the outlet.

Further, by the structure of the second means, the reachable range of the wind can be expanded, and the intermittent wind can be applied to the worker.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
This will be described with reference to FIG. As shown in the figure, the air-conditioning blower is connected to an air-conditioning machine 3 in which a heat exchanger 1 and a blower 2 are arranged, and has a blow-out port 5 on a side surface of an air-conditioning duct 4 arranged under the ceiling of a factory building. In a factory air conditioning system in which a plurality of air conditioners 6 are installed, the air conditioner blower 6 has a fan 7 and a variable speed motor 8 for rotating the fan 7 therein. The intake port 9 can be communicated with either or both of the air-conditioning duct side intake port 11 and the indoor side intake port 12 by a damper 10, and the filter 13 is provided on the rear surface side of the indoor side intake port 12. Are arranged. Further, a backflow prevention damper 14 is arranged on the rear surface side of the air conditioning duct side suction port 11. Air conditioner blower 6
Has a human position detection sensor 15 arranged on the front surface so as to face the front. A stepping motor 16 that positions and drives the blowout direction is arranged at the blowout port 5.

3, the motor 8 is connected to an operation control device 18 via a drive circuit A17, and the operation control device 18 is shown in FIG.
The motor 8 is driven by changing the rotation of the motor 8 according to the speed signal Sa given to the drive circuit A17. Human position detection sensor 1
Reference numeral 5 detects infrared rays emitted from a person and outputs a person position detection signal Sb to the operation control device 18. The stepping motor 16 also has an operation control device 18 via a drive circuit B19.
Is connected to the drive circuit B1 from the operation control device 18.
The stepping motor 16 is driven by the direction signal Sc given to the signal 9. The operation control device 18 is configured to include a microcomputer, and outputs a drive signal to the drive circuit A17 and the drive circuit B19 based on a program stored in advance and each signal from the human position detection sensor 15.

With the above configuration, the blower 2 in the air conditioner 3
When is moved, the air whose heat has been exchanged by the heat exchanger 1 passes through the air conditioning duct 4 and is guided to the air conditioning blower 6. The air conditioner blower 6 receives the human position detection signal Sb from the human position detection sensor 15 and sends the speed signal Sa to the drive circuit A17 of the motor 8.
Since the direction signal Sc is output to the drive circuit B19 of the stepping motor 16, the outlet 5 can change the angle in the direction in which the worker is present and can blow air at an appropriate air volume (wind speed). As a result, even if the worker moves, the wind can always be applied to the worker at the optimum wind speed.

As described above, according to the factory air conditioning system of the first embodiment of the present invention, only the vicinity of the worker can be effectively air-conditioned.

Next, a second embodiment of the present invention will be described with reference to FIG. The difference from the configuration of FIG. 2 is that the stepping motor 16 is driven and controlled so that the blower outlet 5 swings left and right at an arbitrary angle around the worker direction.

With the above structure, it is possible to air-condition a wider area and to apply intermittent wind to the worker.

In the first embodiment, the temperature of the conditioned air is constant and only the air velocity is changed to blow the air. However, the intake air from the indoor suction port 12 provided with the dust removing filter 13 and the air conditioning duct. The conditioned air from the side suction port 11 can be mixed and blown. The air temperature can be changed by adjusting the opening degree of the damper 10 provided in the indoor suction port 12. Further, when the plurality of air conditioner blowers 6 are not all operated, a backflow prevention valve 14 is provided at the air conditioning duct side suction port in order to prevent backflow.

Further, although the swinging direction is horizontal in the second embodiment, it goes without saying that a swinging mechanism which is vertical or has both of them may be used.

[0019]

As described above, according to the present invention, the air conditioner blower main body is provided with the human position detecting sensor so that the blower outlet can be tracked in the direction in which the worker is, and the air can be blown at an appropriate wind speed according to the distance. In addition, it is possible to perform air conditioning only in the necessary place,
Since the wind can be directly applied to the worker, the temperature of the conditioned air can be set to a high value during cooling, so that it is possible to provide a factory air conditioning system with excellent energy saving effects.

Further, by swinging the air outlet, not only local air conditioning over a wider range is possible, but also intermittent wind can be applied to the operator, and a more comfortable factory air conditioning system can be provided.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a factory air conditioning system according to a first embodiment of the present invention.

[Figure 2] Air conditioning blower configuration diagram of the factory air conditioning system

FIG. 3 is a block diagram showing the electrical configuration of the factory air conditioning system.

FIG. 4 is a configuration diagram of a factory air conditioning system according to the second embodiment.

[Figure 5] Configuration diagram of a conventional factory air conditioning system

[Explanation of symbols]

 3 Air Conditioner 4 Air Conditioning Duct 5 Air Outlet 7 Fan 8 Motor 9 Air Intake Port 10 Damper 11 Air Conditioning Duct Side Suction Port 12 Indoor Side Suction Port 14 Backflow Prevention Damper 15 Human Position Detection Sensor 16 Stepping Motor 18 Operation Control Device

Claims (2)

[Claims] 1. A fan in a factory air-conditioning system, in which warm air or cold air from an air conditioner is blown into an air conditioning duct provided on a lower surface of a ceiling, and the warm air or cold air is supplied into a factory through an outlet connected to the air conditioning duct. A motor for driving the vehicle, a person position detection sensor for detecting the presence and position of a person and outputting a person position signal and a distance signal, and an automatic driving for driving the motor based on the person position signal from the person position detection sensor In addition, the factory air conditioning system is provided with an air conditioner blower that automatically orients the air outlet toward a person and changes the amount of air blown from the fan based on the distance signal. 2. The factory air-conditioning system according to claim 1, wherein the air outlet is capable of swinging left and right around the person position at an arbitrary angle.