JPH05157331A - Radiant heating and cooling device control sensor - Google Patents

Abstract

(57) [Abstract] [Purpose] To obtain a control sensor capable of controlling the operation of the radiant heating / cooling device in the indoor thermal environment sensed by the human body during the indoor heating / cooling by radiation. [Structure] A radiant heat absorbing plate 6 is attached to the front of the box 2, and a temperature detecting sensor 7 is attached to the back of the absorbing plate 6. [Effect] Since the radiant heat from the radiant heat radiator and the convection temperature can be simultaneously detected by one sensor and can be output, the operation control of the device is very similar to the control based on the human sense.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a radiant heating / cooling apparatus by detecting an indoor thermal environment formed by floor heating and ceiling radiant heating / cooling with the same feeling as or a feeling close to that of human senses indoors. The present invention relates to a control sensor for controlling a set temperature.

[0002]

2. Description of the Related Art In order to control a floor heating and a ceiling radiant heating / cooling device to a set temperature, conventionally, a temperature sensor is directly attached to a floor or a ceiling, and a signal from the temperature sensor is received for control. An air temperature sensor for detecting the air temperature is installed in the room to receive a signal from the temperature sensor for control, or a combination of both of them is used for control.

[0003]

However, the above-mentioned conventional control system detects the temperature in the room by heat transfer and convection temperature, and detects the radiant heat which is a characteristic of floor heating or ceiling radiant heating / cooling. Absent. For this reason, there is a gap between the indoor heating sensation and the cooling sensation actually felt by a person, and it cannot be said that the indoor thermal environment formed by radiant heat is completely controlled.

An object of the present invention is to provide a control sensor for detecting the indoor thermal environment, that is, the indoor thermal environment felt by humans, that is, the radiant heating / cooling sensation, or the indoor thermal environment, and controlling the radiant heating / cooling apparatus. Is.

[0005]

The structure of the control sensor according to the present invention is as follows.

A radiant heat absorber is formed by attaching a radiant heat absorbing plate made of a material that easily absorbs radiant heat to the surface of a heat-insulated box and attaching a temperature detection sensor for detecting the temperature of the radiant heat absorbing plate to the back side of the radiant heat absorbing plate. Air conditioner control sensor.

The material of the radiant heat absorbing plate is most preferably a copper plate having a high heat absorbing ability, but other metals such as an aluminum plate may be used. The surface of the radiant heat absorbing plate may be coated with black or red or may be subjected to a black body treatment in order to easily absorb the radiant heat.

When the box is made of metal, plastic, or the like, a heat insulating material is attached to the inside of the box in order to prevent the influence of heat from the attached wall body, and the surface of the heat insulating material is an aluminum foil having a high reflectance. It is good to put the equality. However,
When the box itself is made of a material having a heat insulating property, it is not always necessary to stretch the heat insulating material.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, 1 is a control sensor, 2 is a mounting wall, and the control sensor 1 is mounted in the mounting wall 2 in an embedded manner. Reference numeral 3 denotes a box constituting the control sensor 1, and a heat insulating material 4 and an aluminum foil 5 are attached to the inside of the box 3.

6 is attached to the front of the box 1
A radiant heat absorbing plate made of a copper plate having a thickness of 0 mm × 50 mm and a thickness of 1 mm is used, and the surface of the absorbing plate 6 is coated with black. Reference numeral 7 denotes a thermocouple type temperature detection sensor attached to the center of the back surface of the radiant heat absorbing plate 6, which electrically detects and outputs the temperature change of the radiant heat absorbing plate 6.

FIG. 2 shows a situation in which the control sensor 1 is mounted in a room. The control sensor 1 is mounted on a side wall or the like where sunlight does not hit and there is no obstacle with the floor heating 8.

According to the control sensor 1, the air heat temperature and the radiant heat temperature in the room directly heat or cool the radiant heat absorbing plate 6. The temperature detection sensor 7 outputs a temperature change of the radiant heat absorbing plate 6 as a voltage change, and this signal is input to a controller (not shown). The controller calculates the difference between the input temperature and the set temperature, and controls the device to reach the set temperature.

FIG. 3 shows the output temperatures from the control sensor 1 mounted on the side wall of the room where the floor heating system is installed, and the output temperatures from the radiant heat sensor and the air heat sensor installed at the same place. Thus, the output temperature from the control sensor 1 is located approximately in the middle of the radiant heat and the convective air heat temperature.

FIG. 4 shows the output temperature collected under the same conditions as in FIG. 3 with the control sensor 1 attached to the side wall of the room in which the ceiling cooling device is installed. Also in this example, the radiant heat and the convective air heat temperature are approximately in the middle. The output temperature from the control sensor 1 is located at.

The solid line in FIG. 5 shows the air temperature and the working temperature obtained by the following equation, with the human body model installed in the center of the windless room and the average radiation temperature around this being determined.
This operating temperature is the value of the indoor thermal environment perceived by the human body and is the case when floor heating is controlled.

Working temperature = (average radiant temperature around human body + air temperature) / 2 On the other hand, the dotted line shows the working temperature around the human body model when floor heating is controlled by the control sensor 1 of the present invention mounted on the wall surface. .

As is apparent from FIG. 5, both operating temperatures change substantially the same. This indicates that the control sensor 1 according to the present invention detects the temperature inside the room under substantially the same conditions as the radiant heating / cooling sensation that the human body feels indoors, and controls the operation of the heating / cooling device.

[0018]

As described above, according to the present invention, the thermal environment in the room due to the radiation and convection formed by the radiant heat can be detected by a single sensor under substantially the same conditions as the thermal environment sensed by the human body. It is possible to control the operation of the cooling device to a higher degree and perform comfortable radiant heating and cooling.

Further, the structure of the sensor is extremely simple, there is no fear of failure, and the sensor can be incorporated in the case of the controller, so there are few design problems and it can be manufactured at low cost.

[Brief description of drawings]

FIG. 1 is a sectional view of a control sensor of the present invention.

FIG. 2 is an explanatory diagram of an example in which the control sensor of the present invention is attached indoors.

FIG. 3 is an explanatory view of the performance of the control sensor of the present invention during floor heating.

FIG. 4 is an invention diagram of the performance of the control sensor of the present invention during ceiling cooling.

FIG. 5 is an explanatory diagram of a comparative example of operating temperature.

[Explanation of symbols]

 1 Control Sensor 2 Mounting Wall 3 Box 4 Heat Insulation Material 5 Aluminum Foil 6 Radiant Heat Absorption Plate 7 Temperature Detection Sensor 8 Floor Heating

Claims (4)

[Claims] 1. A radiant heat absorbing plate formed of a material that easily absorbs radiant heat is attached to the surface of a heat-insulated box, and a temperature detection sensor for detecting the temperature of the radiant heat absorbing plate is attached to the back surface of the radiant heat absorbing plate. Radiant heating and cooling device control sensor. 2. The radiant heating / cooling device control sensor according to claim 1, wherein the radiant heat absorbing plate is formed of a copper plate, and the surface of the copper plate is colored black or red. 3. The radiant heating / cooling device control sensor according to claim 1, wherein the temperature detecting sensor attached to the back surface of the radiant heat absorbing plate is a thermocouple. 4. The radiant heating / cooling device control sensor according to claim 1, wherein the box itself is formed of a heat insulating material, and an aluminum foil layer is formed inside the box.