JPH02169927A - Radiant heating apparatus - Google Patents

Abstract

PURPOSE:To make it possible that the comfortable state is maintained through the adjustment of the amount of radiant heat acting on a human body in a room to be warmed by controlling the amount of heat supplied to plural radiant heat sources according to the temperature and position of the human body inside the room. CONSTITUTION:Multiple reflecting plates 1 that reflect the radiant heat from first, second and third electric heaters 3, 4, 5 and change the distribution of radiant heat around a device are provided in the main body of the device 2. When the operation is started, the room temperature is sensed by a room temperature sensor 6, and according to the output thereof, the electric power to each of the electric heaters 3, 4, 5 is determined by an electric power calculation section 8. Based on this result, electricity supply amount control sections 9, 10, 11 of the heaters control the supply of electricity. Here, when the room temperature is low, the power supplied to the heaters 3, 4 that apply the radiant heat directly on a human body are increased. At this time, heaters that radiate the radiant heat to the position of the human body are selected by an infrared ray sensor 7. When the room temperature is raised, the electric power supplied to the heaters 3, 4 are gradually decreased, and the power supplied to the heater 5 that disperses the radiant heat throughout a room is increased to heat the surrounding wall body, and the human body is warmed by the secondary radiation coming from there.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a radiant heating device that provides a comfortable heating effect by controlling the flux of radiant heat from a radiant heat source.

Prior Art This type of conventional radiant heating device, as shown in the sixth flash,
A reflector plate 1 is rotatably provided in front of the radiant source to change the direction of radiant heat.

(For example, Japanese Utility Model Application Publication No. 52-139654) Problems to be Solved by the Invention However, in the above configuration, when the direction of radiant heat is directed toward the occupant, even if the occupant is comfortable when the temperature is low, As the temperature rises, the heat may confuse residents, or even when the temperature is low, the radiant heat may be pointing in a direction where there are no residents. The problem was that it was a hassle to do so.

The present invention solves such conventional problems by adjusting the radiant heat flux around the equipment according to the indoor temperature and the position of the human body,
The purpose is to provide a comfortable indoor environment.

Means for Solving the Problems In order to solve the above problems, the radiant heating device of the present invention includes a plurality of radiant heat sources, a radiant heat flux changing means for changing the direction and density of the radiant heat flux from the radiant heat sources, a room temperature detection means for detecting the temperature in the heated room; a human body position detection means for detecting the position of a human body in the heated room; and a plurality of radiant heat sources based on the outputs of the room temperature detection means and the human body position detection means. and a supply heat amount control device that controls the supply heat amount to each of the heat sources.

Effect: With the above configuration, the present invention controls the amount of heat supplied to the plurality of radiant heat sources according to the temperature inside the room to be heated and the position of the human body, thereby changing the radiant heat dissipation distribution around the main body of the device. The amount of radiant heat that acts on the human body is adjusted in combination with the temperature to maintain a comfortable state.

Example Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, the main body 2 of the apparatus has a first heat source as a radiant heat source.
Second. A third electric heater 3,4.5, a plurality of reflectors 1 that reflect the radiant heat from these electric heaters 3,4,5 and change the radiant heat distribution around the device, and a room temperature sensor 6 that detects the indoor air temperature. Furthermore, an infrared sensor 7 is provided as a human body position detection means. This device main body 2 is used by being suspended from the ceiling.

Furthermore, the positional relationship between the electric heaters 3, 4.5 and the reflector 1 creates a radiant heat dissipation distribution in which the electric heaters 3 and 4 mainly direct radiant heat downward to directly heat the human body, and the electric heater 5 They are installed to distribute radiant heat around the room and evenly heat the entire room.

Figure 2 shows the distribution of the amount of radiant heat dissipated around the device main body 2 when the electric heaters 3, 4.5 are energized separately.
The solid line A is the one caused by the first electric heater 3, and the broken line B is the one caused by the second electric heater 3.
The -dotted chain line C is caused by the third electric heater 5.

FIG. 3 shows a control block diagram. Based on the signals from the room temperature sensor 6 and the infrared sensor 7, each electric heater 3.4.
The energization amount calculating section 8 calculates the amount of energization to the first . Second
and a third energization amount control section 9.10.11.

In the above configuration, when the operation is started, the room temperature is detected by the room temperature sensor 3, and the first... Second. The amount of electricity to be applied to each of the third electric heaters 3.4.5 is determined by the amount of electricity calculation unit 8, respectively. Based on this result, the energization amount control unit 9.10.11 of each electric heater 3.4.5 controls energization.

Here, the means for controlling the amount of energization will be explained.

When the room temperature is low, such as at the start of operation, the first or second electric heater 3, which applies radiant heat directly to the human body,
To prevent discomfort caused by low temperature by increasing the amount of electricity supplied to No. 4. At this time, the infrared sensor 7 selects the heater that irradiates the position of the human body with radiant heat. As the room temperature rises, the radiant heat irradiating from above causes discomfort, so the power supply to the second electric heater 4, which disperses the radiant heat throughout the room, is increased to heat the surrounding walls. By enveloping the human body with secondary radiation, a comfortable radiant heating effect is achieved.

FIG. 4 shows the relationship between the amount of current applied to the electric heaters 3, 4.5 and room temperature. As the room temperature rises, the amount of current applied to the first or second electric heaters 3, 4 (solid line) gradually decreases, and the weight of the third electric heater 5 (dashed line) increases. Regarding the gradient between the low and high room temperature parts of the third electric heater 5, the former is a limit on the total amount of electricity supplied, and the latter is a capacity adjustment for controlling the room temperature.

The influence of the temperature around the human body and the radiant heat on the bodily sensation is schematically shown in FIG. 5, and this embodiment utilizes this relationship.

As is clear from the above explanation, the first. By controlling the amount of electricity supplied to the second and third electric heaters 3 and 4.5 according to the position of the human body and the room temperature, a comfortable state is maintained by the combination of radiant heat to the human body and the temperature, and it is possible to maintain a comfortable state immediately after the start of operation. A comfortable heating effect can be obtained even after the room temperature has stabilized.

Furthermore, in the case of convection heating, a comfortable window cannot be obtained until the temperature of the entire room rises, so in order to quickly raise the room temperature, a larger capacity is required compared to the steady heating load, and the equipment is also required. However, this embodiment, which uses radiant heat to compensate for the physical sensation, does not require excessive capacity even during start-up, and has the advantage of being able to realize a lightweight and small device.

Furthermore, since it does not have any mechanically moving parts, it has the advantages of no noise, high durability, and low cost.

Further, although the heat source has been described using an electric heater as an example, similar effects can be obtained with any type of heat source such as an oil combustor or a gas combustor.

Effects of the Invention As described above, the radiant heating device of the present invention provides the following effects.

(1) A plurality of radiant heat sources, a radiant heat flux changing means for changing the direction and density of the radiant heat flux from the radiant heat sources, a room temperature detecting means for detecting the temperature inside the room to be heated, The device is composed of a human body position detection means for detecting a position, and a supply heat amount control device for controlling the heat supply amount to each of the plurality of radiant heat sources based on the outputs of the room temperature detection means and the human body position detection means. The system adjusts the radiant heat that acts on the human body according to the room temperature and the position of the human body to maintain the sensation within a comfortable range, making it possible to achieve a comfortable heating effect from immediately after the start of operation until after the room temperature has stabilized.

(2) Since radiant heat is automatically controlled, the user does not have to worry about it.

(3) When the room temperature is low, local radiant heat supplements the sense of sensation, so the heating capacity does not need to be small, and the device can be made lighter and smaller.

(4) Since it does not have mechanically moving parts, it has the advantages of no noise, excellent durability, and low cost.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a radiant heating device according to an embodiment of the present invention, FIG. 2 is a diagram showing the distribution of radiant heat transfer and radiation around the device, and FIG. 3 is a block diagram of the control device of the device. Figure 4 shows the influence of air temperature and radiant heat on the human body's sensations, Figure 5 shows the relationship between the amount of electricity applied to each electric heater of the device and room temperature, and Figure 6 shows the effect of conventional radiant heat. It is a perspective view showing an example of a heating device. l...Reflector plate as radiant heat flux changing means, 2
... Radiation heating device main body, 3 ... First electric heater as a radiant heat source, 4 ... Second electric heater as a radiant heat source, 5 ... ...Third electric heater, 6.Old room temperature sensor, 7..Infrared sensor, 8..1iit calculation unit, 9..
. . . 1st energization amount control section, 1o..old . . . 2nd energization amount control section, 11. . . . 3rd energization amount control section. Name of agent: Patent attorney Shigetaka Awano Haka 1 person/--Device plate? -1'shi E7 stomach power 1\3-1's heater 4-2's heater. Figure Figure Temperature -

Claims (1)

[Claims] A plurality of radiant heat sources, a radiant heat flux changing means for changing the direction and density of the radiant heat flux from the radiant heat sources, a room temperature detecting means for detecting the air temperature in the heated room, and a detecting the position of a human body in the heated room. A radiant heating device comprising: a human body position detecting means; and a supply heat amount control device controlling the supply heat amount to each of the plurality of radiant heat sources based on the outputs of the room temperature detecting means and the human body position detecting means.