JPH02136624A - Heating apparatus - Google Patents

Abstract

PURPOSE:To enable execution of control of the comfortable feeling of a man by a method wherein a temperature converting device is mounted to a detecting device to detect the surface temperature of a user positioned in the heating direction of a heat generating body, the temperature of an object in a visual field is detected through measurement of an infrared ray radiation amount, and a heating amount of the heat generating body is controlled according to the intensity of a detecting temperature or a temperature change. CONSTITUTION:According to a signal detected by a detecting device 3 formed with an infrared ray sensor, an energizing amount or opening and closing of a heat generating body 1 are controlled. It is decided by the presence of a change in infrared rays in a visual field (b) whether a user 6 is located in the visual field (b). Through comparison of the temperature in the visual field (b) of the user 6 with the temperature of a chopper 31, the temperature of the user and the like located in the visual field produces an absolute temperature in the visual field (b) and is detected as a temperature signal by a temperature converting device 4. By inputting the detecting signal to a control circuit 2, heating of the heat generating body 1 according to the intensity of temperature in the visual field (b) is effected.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a heating appliance for heating a general household in winter.

Conventional technology Conventional heating appliances provide warmth by turning on and off electricity to a heating element inside the shell, adjusting the ambient temperature with a thermostat, or controlling the time with a timer, etc. .

In contrast, a method using an infrared sensor is known as a type of detecting the presence or absence of a human body, such as the one described in Japanese Utility Model Application Laid-Open No. 62-141110.

Problems to be Solved by the Invention In the conventional technology as described above, for example, when a person turns on a switch, the temperature is warmed at 100% output, or important controls are manually operated to make the person himself comfortable. I had to make adjustments. Furthermore, even if the amount of heating was controlled using a thermostat or the like, the condition of the person taking the temperature could not be detected.

Furthermore, methods that use infrared sensors to detect human bodies and turn on and off electricity can only turn on electricity when a person is present, but they cannot detect how cold or warm a person is. If you cut it off as if he wasn't there,
There was a problem in that the temperature of the room did not rise and cold radiation was generated from the walls.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a temperature conversion device in a detection device that detects the surface temperature of a human body or a wall surface in the heating direction of a heating element, and The temperature conversion device is provided with a control circuit that detects the temperature by measuring the amount of infrared radiation and controls the amount of heating of the heating element according to the detected temperature level or change in temperature.

A detection device detects the surface temperature of the person taking the heat and the wall behind the person, and the detection signal is input to the temperature converter, which converts it into a high or low temperature, and then sends it through a control circuit to respond to changes in temperature. Control is applied to the heating element to provide optimal heating.

The so-called present invention detects the temperature of the object to be heated as a white object in the field of view, and for example, if the temperature of the human body being warmed is low, 1
Controls that heat at 00% output and reduce the amount of heating when the human body temperature rises, or even if it is not a human body,
Even if there is no person within the field of view and the wall temperature is detected, it will heat up when the wall temperature is low and stop heating when the wall temperature rises, and only when a human body is detected it will heat according to the body part. It automatically controls the human body so that it reaches the appropriate temperature.

Embodiment An embodiment of the present invention will be described with reference to the drawings, taking an infrared electric stove as an example.

1 is a heating element in which a coiled Fs-Cr wire is placed inside a quartz tube. Reference numeral 2 denotes a control circuit that controls turning on/off the energization of the heating element 1 or varying the amount of energization. 3 is a detection device consisting of a pyroelectric infrared sensor, and has a chopper 31 for detecting absolute temperature and a field lens 32 for detecting movement of a human body within the visual field. Reference numeral 4 denotes a temperature conversion device for converting a signal detected within the visual field by the detection device 3 consisting of an infrared sensor into an absolute temperature signal using a chopper 31, and inputs this converted signal to the control circuit 2. 5 is a vessel constructed by combining the above configurations. 6 is a warmer. 7 is a wall that serves as the background of the temperature collector 6. (a) shows the heating state by the heating element 1, and (b) shows the field lens 3 of the detection device 3 consisting of an infrared sensor.
Fig. 2 is a field of view showing the detection range in Fig. 2;

The operation of this embodiment having the above configuration is as follows.

Based on the signal detected by the detection device 3 consisting of an infrared sensor, the amount of electricity supplied to the heating element 1 is controlled and other important controls are performed. First, whether or not warmer 6 is within the field of view (b) is determined by the field of view (
(b) It is determined by the presence or absence of a change in infrared rays within the body, and cannot be detected unless the person 6 moves at all, but can be detected by the change if the person 6 moves even a little during the day. In addition, the 6th mag field of view of the warmer (
(b) The temperature inside the chopper 31 is determined by the chopper 31.
Based on the principle of comparison with the temperature, the temperature converter 4 detects the absolute temperature within the field of view (b) as a temperature signal. By inputting this detected signal to the control circuit 2,
The heating element 1 is heated according to the temperature within the field of view (b).

For example, when the temperature taker 6 comes back from a cold outdoors and tries to warm himself up, he detects a moving human body within his field of view (b), and since he is cold, he continues to heat the body at full power. , the amount of heating is controlled to be lowered.

Further, when the temperature of the person taking the temperature 6 becomes too high, there is a risk of burns, so the electricity to the heating element 1 is stopped. Also,
An unmoving object is in the field of view (b), and the object is on the wall 7
When the temperature is low, electricity is turned on to raise the temperature of the walls in the room.

As described above, according to the present invention, by combining human body detection and a detection device that detects the temperature of the human body with a heating element, it is possible to detect when the person is cold or When it gets warmer or when the temperature becomes abnormal, etc.
Since the heating of the heating element is controlled automatically based on the discrimination, it is effective in providing control according to the human sense of comfort.

Furthermore, since the system determines whether the person is heating the room or the wall, and then controls the system, it is a hassle-free device that prevents the user from getting cold when no one is around.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a heating appliance showing an embodiment of the present invention;
FIG. 2 is a block diagram of the heating appliance. 1... Heating element, 2... Control circuit. 3...Detection device, 4...Sensitivity conversion device.

Claims (1)

[Claims] 1. A heating appliance having a heating element (1) and a control circuit (2) that controls energization of the heating element (1),
A detection device (3) for detecting a human body in the heating direction of 1) and a temperature conversion device (4) for converting the signal of the detection device (3) into a temperature signal are provided, and the signal of this temperature conversion device (4) is provided. is input into the control circuit (2), and the signal from the detection device (3) is treated as a signal output from the temperature conversion device (4), and the control circuit (1) controls the heating element (1) according to the amount of the signal. 2) A heating appliance characterized by the following. 2. When the temperature of the human body detected in front of the device body (5) is lower than the normal body temperature, the amount of electricity supplied to the heating element (1) provided at the output of the control circuit (2) is increased, and the normal temperature is increased. 2. The heating appliance according to claim 1, further comprising a detection device (3) which reduces or turns off the amount of electricity supplied to the heating element (1) when the temperature is close to or above body temperature. 3. When the temperature of the back surface behind the field of view captured in front of the device (5) is low, the heating element (
2. The heating appliance according to claim 1, further comprising a detection device (3) which increases the amount of current supplied to the heating element (1) and decreases the amount of current supplied to the heating element (1) when the amount of current supplied to the heating element (1) is high.