JPH0579676A - Air-conditioning machine and radiation sensor for air-conditioning machine - Google Patents

Abstract

PURPOSE:To obtain a radiation sensor, capable of detecting radiation and being used both for an indicating body, and effect an indication having better appearance. CONSTITUTION:The title radiation sensor is constituted of a concave mirror 6, having the shape of reversed bowl whose front surface is opened, a thermistor 8 as well as a LED 9, provided near the point of focus of the concave mirror 6, a radiation sensor 20, collecting radiation heat from outside into the thermistor 8 by the concave mirror 6 and lighting said concave mirror 6 by the light of the LED 9, an air conditioning control unit 25, receiving the output of the radiation sensor 20 and controlling the air-conditioning capacity of heating or cooling, and a comfortable condition indicating and controlling unit 27, outputting an output for changing the light emitting condition of the LED 9. Accordingly, the radiation sensor can be used both for a light emitting body and, further, the whole of the concave mirror is illuminated whereby the indication is easy to see.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner such as a petroleum fan heater and a heating / cooling air conditioner, and a radiation sensor for an air conditioner used in the air conditioner.

[0002]

2. Description of the Related Art Generally, in an air conditioner such as an oil fan heater and a heating / cooling air conditioner, an air conditioning controller controls a load 2 such as a heating source or a cooling source based on an output from a temperature sensor 1 as shown in FIG. It was heating or cooling. Recently, the radiation sensor 3 is provided, and the air conditioning control unit 4 also controls the load 2 based on the output from the radiation sensor 3. An air conditioner using this radiation sensor 3 detects the amount of radiation from a wall or ceiling of the room and controls the load 2. Therefore, an air conditioner that considers cold heat radiation from the wall or ceiling of the room. This makes it possible to perform comfortable air-conditioning control that matches the temperature felt by the user. In such an air conditioner, when a comfortable air conditioning condition is reached, a lamp 5 is provided to display the condition so that the user can be informed of the comfortable condition.

[0003]

However, in the air conditioner configured as described above, the lamp 5 is too small to be fully confirmed by the user. This can be solved by enlarging the lamp 5, but the cost will be increased accordingly.
Further, since the lamp 5 is provided separately from the radiation sensor 3, a configuration for mounting both of them is required, which complicates the configuration and increases the number of assembling steps, which causes a problem of cost increase.

The present invention has been made to solve the above problems, and is intended to make the display easy to see without increasing costs and complicating the structure, and can also be used as a display body while detecting radiation. The purpose is to provide a radiation sensor.

[0005]

In order to achieve the first object of the present invention, an inverted bowl-shaped concave mirror having an open front surface, a radiation detecting element and a concave mirror provided near the focal point of the concave mirror are provided. A radiant sensor that is provided near the focal point, collects radiant heat from the outside by the concave mirror to the radiation detection element, and causes the concave mirror to shine with the light of the luminescent element, and receives the output from this radiant sensor. The air conditioning control unit for controlling the air conditioning capacity for cooling or heating, and the comfort display control unit for outputting the light emitting body of the radiation sensor or outputting an output for changing the light emitting state when a predetermined comfortable air conditioning state is reached. This is the means for solving the first problem.

In order to achieve the second object, an inverted bowl-shaped concave mirror having a front surface opened, a radiation detecting element provided near the focal point of the concave mirror, and a light-emitting body provided near the focal point of the concave mirror. The second problem solving means is that the radiant heat from the outside is collected in the radiation detecting element by the concave mirror and the concave mirror is illuminated by the light of the light emitting body.

[0007]

According to the first means for solving the above problems, the present invention provides:
The concave mirror efficiently collects radiant heat from the surroundings, and when it is in a comfortable air-conditioning state, the luminous body emits light, for example, and diffuses the light of the luminous body so that the entire concave mirror of the radiation sensor illuminates, and the sensor and lamp are integrated. Since it has a round shape, the cost and the configuration are not complicated, and the display showing the comfortable air-conditioning condition is easy to see.

Further, according to the second means for solving the problems, the radiation sensor can be utilized also as a display for detecting radiation.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 7, assuming that the invention is applied to an oil fan heater. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

First, the schematic structure of the oil fan heater will be described with reference to FIGS. 2 and 3. The radiation sensor 20 detects the amount of radiation from the wall surface of the space to be heated, and the front surface of the device body 21. Attached to. The louver 21a controls the discharge direction of hot air.

A burner 22 is provided inside the equipment main body 21, fuel (kerosene) is supplied to the burner 22 by an electromagnetic pump (not shown), and an optimum air amount for combustion is provided by a burner fan (not shown). Supply. The convection fan 23 is provided in the rear part of the device body 21, and the air heated by the burner 22 is discharged as hot air from the discharge port 24 by adjusting the discharge direction by the louver 21a. The air conditioning controller 25 is attached to the inner surface of the upper part of the device body 21. Reference numeral 26 is a thermistor that detects the ambient temperature of the radiation sensor 20 and is used to add a temperature correction to the output of the radiation sensor 20.

As is clear from the sectional structure of FIG. 1, the radiation sensor 20 includes a heat receiving plate 7 having a concave mirror 6, a thermistor 8 serving as a radiation detecting element, and a chip type LED 9 serving as a light emitting body.
And the rear surface of the concave mirror 6 is covered with a heat insulating material 10. The thermistor 8 and the chip-shaped LED 9 are concave mirrors 6.
It is located near the focal point of.

FIG. 4 is a view of the heat receiving plate 7 seen from the direction A in FIG. 1, showing a state in which the thermistor 8 and the chip type LED 9 are not yet attached. A conductor 11 is printed on the heat receiving plate 7, electrodes 12 and 13 are for soldering the thermistor 8 and the chip type LED 9, respectively, and electrodes 14 and 15 are provided for signal extraction and power supply. It is a thing.

FIG. 5 is an external view of the chip-type LED 9, in which electrodes 16 and 17 are provided in the longitudinal direction of a rectangular parallelepiped, and an LED semiconductor is directly embedded in a pot portion 18 of epoxy resin.

FIG. 6 is a view showing a diffuser 19 having a conical shape made of a transparent resin, which is set so as to be mounted on the light emitting surface side of the chip type LED 9. This is because the light emission surface of the chip-type LED 9 is a flat surface, and the emitted light spreads in only one direction and uniformly diffuses in all directions.

Next, the control configuration of the oil fan heater will be described with reference to FIG. 1. Reference numeral 25 is an air conditioning control unit, and this air conditioning control unit 25 is the room temperature detected by the temperature sensor 1 and the radiation detected by the radiation sensor 20. The comfort level was calculated based on the amount, the preference amount such as “hot” and “cold”, the combustion amount of the combustion unit 22, the air flow rate of the convection fan 23, and the louver angle of the louver 20, which were calculated separately. The combustion unit 22, the convection fan 23, and the louver angle are controlled according to the comfort level. Reference numeral 27 denotes a comfortable air conditioning control unit that causes the LED 9 to emit light when the output from the air conditioning control unit 25 reaches a predetermined comfortable air conditioning state.

With the above construction, the radiation sensor 20 first collects the radiant heat from the surrounding wall or ceiling by the concave mirror 6 in the vicinity of the thermistor 8 and detects the radiant amount. When it is determined that the air conditioning control unit 25 is in a comfortable heating state based on the radiation amount and the operating state of the combustor, the chip type LED 9 attached to the heat receiving plate 7 emits light. The emitted light is a concave mirror 6
Since the light is diffused at a wide angle by the user, the entire concave mirror 6 looks bright to the user. 6 and 7, since the light is diffused by the diffuser 19 arranged directly above the LED 9, the entire concave mirror illuminates more efficiently.

In the embodiment, a single color emitting LED is used, but a multicolor emitting LED may be used. As shown in FIG. 7, only the chip type LED 9 is attached to the heat receiving plate 7, and the thermistor 8 is arranged from the concave mirror side. Even if it is pulled out, the same effect can be obtained. Further, although the above embodiment has been described by taking the oil fan heater as an example, the same can be said for a cooling and heating air conditioner.

[0019]

As is apparent from the above embodiments, according to the present invention, the concave mirror serves both to collect the radiation heat and to diffuse the light emitted from the light-emitting body such as the chip type LED. The structure and the mounting structure can be simplified, and since the entire concave mirror serves as a light emitting surface, a sufficient visual effect can be obtained.

[Brief description of drawings]

FIG. 1 is a control block diagram of an oil fan heater according to an embodiment of the present invention.

FIG. 2 is a schematic front view of the oil fan heater.

FIG. 3 is a sectional view showing an internal structure of the oil fan heater.

FIG. 4 is a front view showing a heat receiving plate equipped with the radiation sensor.

FIG. 5 is a perspective view showing an appearance of a chip-type LED 9 equipped with the radiation sensor.

FIG. 6 is a perspective view in which a diffuser 19 is set on the same chip type LED 9.

FIG. 7 is a sectional view of a radiation sensor according to another embodiment of the present invention.

FIG. 8 is a control block diagram of a conventional oil fan heater.

[Explanation of symbols]

 1 Temperature Sensor 6 Concave Mirror 8 Thermistor (Radiation Detection Element) 9 Chip LED (Light Emitting Body) 19 Diffuser 20 Radiation Sensor 21 Equipment Main Body 25 Air Conditioning Control Section 27 Comfort Display Control Section

Claims (3)

[Claims] 1. An inverted bowl-shaped concave mirror having an open front surface, a radiation detecting element provided near the focal point of the concave mirror, and a light-emitting body provided near the focal point of the concave mirror. Radiation heat from the outside by the concave mirror. A radiation sensor that causes the concave mirror to illuminate with the light of a light emitting body while collecting the radiation detection elements, and an air conditioning control unit that receives the output from the radiation sensor and controls the air conditioning capacity of cooling or heating.
An air conditioner comprising: a comfort display control unit that emits light from the light emitting body of the radiation sensor or outputs an output to change the light emitting state when a predetermined comfortable air conditioning state is reached. 2. An inverted bowl-shaped concave mirror having an open front surface, a radiation detecting element provided near the focal point of the concave mirror, and a light-emitting body provided near the focal point of the concave mirror. Radiation heat from the outside by the concave mirror. And a radiation sensor for an air conditioner, wherein the concave mirror is made to shine by the light of a light-emitting body. 3. The radiation sensor for an air conditioner according to claim 2, wherein a transparent triangular pyramidal diffuser is provided in a light emitting portion of the light emitter.