JPH094896A - Natural air supply device - Google Patents

Abstract

PURPOSE: To provide a natural air supply device to effect efficient heating of intake air only when there is a need for regulation of temperature of intake air at a time when a flow of intake air is produced on the indoor side of an air support port. CONSTITUTION: An air support opening 2 is formed through the interior of a frame body 1. A plurality of heaters 4, an air direction detecting means 6 to detect the direction of the flow of intake air flowing through an air supply opening 2 and output a power applying signal 5 when the flow of intake air is divected to the indoor side; and a power control means 7 to feed a power to the heater 4 when a power applying signal 5 outputted from the air direction detecting means 6 is inputted are arranged in the air supply opening 2. An electric wiring 8 to feed a power from the outside of the frame body 1 is connected to the power control means 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a natural air supply device installed at an air supply port of a building.

[0002]

2. Description of the Related Art In recent years, buildings have been highly airtight and highly insulated from the viewpoint of energy saving, and indoor air pollution has become a problem.
The issue of building air conditioning is how to perform efficient ventilation. In addition, an air supply port is always required for proper ventilation, but this air supply port and the natural air supply device that covers the air supply port not only introduces outside air but also improves the air quality in the room. It is required to have a function as part of an air conditioning system to be prepared.

As an example, for example, forced air supply linked with a ventilation fan and cleaning of intake air can be mentioned. Among them, the suppression of the change in room temperature due to the influence of the intake air is a problem.

Conventionally, this type of natural air supply device has been disclosed in Japanese Utility Model Publication No. 6
The configuration as shown in Japanese Laid-Open Patent Publication No. 1-172931 has been common. The configuration will be described below with reference to FIG.

As shown in the figure, a plurality of heaters 10 are provided inside a box-shaped air inlet main body 100 having an air passage extending therethrough.
1, and the opening 1 on the indoor side of the air passage of the air supply body 100
02 is provided with a plurality of wind direction plates 103 with a shape covering the opening 102, and a power cord 104 for supplying electric power is connected to the heater 101.
It was pulled out of 00.

When electric power is applied to the heater 101 connected to the power cord 104, the heater 101 generates heat, and the heater 101 that has generated heat causes the air supply port main body 10 to be heated.
The supply air flowing through the 0 air passage is heated and temperature-controlled, and the opening 1
The air was supplied to the inside of the room from the gap between the air flow direction plates 103 of No. 02.

[0007]

In the structure of such a conventional natural air supply device, the heater 101 is the power cord 10.
When the supply air is not flowing through the air supply port main body 100, or when the air is flowing from the indoor side to the outdoor side, because the power is always energized with the power source connected to 4,
There is a problem of constantly heating the air even when the temperature of the supplied air is higher than the room temperature and temperature control is not required.

The present invention is intended to solve the above problems, and to efficiently heat the supply air only when the temperature of the supply air needs to be controlled when there is a flow of the supply air in the room. First
The purpose of.

A second object is to heat the supply air only when the outdoor temperature is lower than the set temperature.

A third object is to heat the supply air only when the outdoor temperature is lower than the indoor temperature.

[0011]

In order to achieve the first object, the natural air supply device of the present invention is installed so that the first means is engaged with an air supply port opened in the wall surface of a building. A box-shaped frame body, an air supply opening provided so that the supply air passes through the frame body, and heat is generated by supplying electric power. A heater for heating, a wind direction detecting means for detecting the direction of the flow of the supply air passing through the air supply opening, and outputting a power application signal, and a power application signal output by the wind direction detecting means as an input to the heater. The electric power control unit for supplying electric power and the electric wiring for supplying electric power to the electric power control unit are provided, and the electric power is supplied to the heater only when the flow direction of the supply air is the indoor side direction.

In order to achieve the second object, the second
Means comprises a temperature setting means for setting a desired temperature and a temperature sensor for detecting an outdoor temperature, and if the outdoor temperature detected by the temperature sensor is equal to or lower than the temperature set by the temperature setting means, the power control means is provided. A desired temperature comparison means for outputting a power application signal is provided.

In order to achieve the third object, the third
The means includes an indoor temperature sensor for detecting the indoor temperature and an outdoor temperature sensor for detecting the outdoor temperature, and power is supplied when the outdoor temperature detected by the outdoor temperature sensor is lower than the indoor temperature detected by the indoor temperature sensor. The control means is provided with a temperature comparison means for outputting a power application signal.

[0014]

According to the present invention, with the structure of the above-mentioned first means, the wind direction detecting means detects the direction of the flow of the supply air passing through the air supply opening, and the power control means operates only when there is the air flow inside the room. Supply power to the heater.

With the configuration of the second means, the power control means supplies power to the heater only when the outdoor temperature detected by the temperature sensor is lower than the temperature set by the temperature setting means.

Further, according to the structure of the third means, the electric power control means supplies electric power to the heater only when the outdoor temperature detected by the outdoor temperature sensor is lower than the indoor temperature detected by the indoor temperature sensor.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIG.

As shown in the drawing, a frame 1 formed in a box shape so that it can be installed by engaging with an air supply opening opened on the wall surface of a building.
Air supply opening 2 so that the supply air passes through the inside of the
And a plurality of wind direction plates 3 are provided on the indoor side of the air supply opening 2 of the frame body 1 with a gap provided so as to cover the air supply opening 2.

A plurality of heaters 4 which generate heat by supplying electric power to the air supply opening 2 of the frame 1 and the direction of the flow of the supply air passing through the air supply opening 2 are detected and detected. When the flow direction of the supply air is the indoor side direction, the wind direction detecting means 6 that outputs the power application signal 5, and the power application signal 5 output from the wind direction detecting means 6 are input to supply power to the heater 4. The electric power control means 7 for controlling the electric power is connected to the electric power control means 7 so that electric power can be supplied from the outside of the frame 1.

Further, the wind direction detecting means 6 converts the deformation amount of the diaphragm deformed by the pressure of the supply air into an electric signal with a strain gauge, and judges the air flow direction from the change in the electric signal before and after the deformation of the diaphragm. For example, the thermistor is surrounded by a plurality of thermistors, the deviation of the temperature distribution when an air flow is received is detected by each thermistor, and the air flow direction is judged from the deviation of the detected temperature. is there.

With the above structure, the flow of the supplied air passing through the air supply opening 2 of the frame 1 is detected by the wind direction detecting means 6 in a state where electric power is applied to the electric wiring 8, and the detected flow of the supplied air. Is the indoor direction in which the wind direction plate 3 is arranged, the wind direction detecting means 6 outputs the power application signal 5, and the power control means 7 receives the power application signal 5 and supplies the power to the heater 4. Will be done.

As described above, according to the natural air supply system of the first embodiment of the present invention, the heater 4 is energized only when the supply air passing through the air supply opening 2 is flowing toward the room. .

Even if a heater temperature control device or the like for detecting the heat generation temperature and controlling the electric power applied to the heater 4 is provided so that the heater 4 does not generate heat more than necessary, there is no difference in the operation and effect.

Further, even if the heater 4 is a heater having a positive temperature coefficient having an automatic temperature control characteristic (such as a titanate value-based ceramic heater), there is no difference in its function and effect.

Next, a second embodiment of the present invention will be described with reference to FIG. The same components as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in the drawing, the desired temperature can be set at a position where the user can operate through the gap of the wind direction plate 3 arranged so as to cover the air supply opening 2 of the frame 1. A temperature setting means 9 is provided, and a temperature sensor 10 for detecting the temperature of the outdoor side is provided outside the air supply opening 2.

Then, it is desirable to output the power application signal 5 only when the outdoor temperature is lower than the preset temperature, using the preset temperature set by the temperature setting means 9 and the outdoor temperature detected by the temperature sensor 10 as inputs. The temperature comparison means 11 is used as the frame 1
It will be installed inside.

With the above structure, when the temperature outside the room detected by the temperature sensor 10 is lower than the desired temperature set by the user by the temperature setting means 9 in a state where electric power is applied to the electric wiring 8, it is desired. The power application signal 5 is output from the temperature comparison means 11, and the power control means 7 outputs the power application signal 5.
The electric power is supplied to the heater 4 in response to the input.

As described above, according to the natural air supply system of the second embodiment of the present invention, the heater 4 is energized only when the temperature outside the room is lower than the set desired temperature.

Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in the drawing, an indoor temperature sensor 12 for detecting the indoor temperature is provided at a position of a gap of an air flow direction plate 3 which is provided so as to cover the air supply opening 2 of the frame 1. An outdoor temperature sensor 13 that detects the temperature of the outdoor side is provided on the outdoor side of the air supply opening 2.

Then, the power application signal 5 is applied only when the indoor temperature detected by the indoor temperature sensor 12 and the outdoor temperature detected by the outdoor temperature sensor 13 are input and the outdoor temperature is lower than the indoor temperature. The temperature comparison means 14 for outputting is arranged in the frame body 1.

With the above configuration, when the outdoor temperature detected by the outdoor temperature sensor 13 is lower than the indoor temperature detected by the indoor temperature sensor 12 in a state in which electric power is applied to the electric wiring 8, the temperature comparing means. Power supply signal 5 from 14
Is output, the power control means 7 receives the input of the power application signal 5 and supplies power to the heater 4.

As described above, according to the natural air supply system of the third embodiment of the present invention, the heater 4 is energized only when the temperature outside the room is lower than the temperature inside the room.

[0035]

As is apparent from the above-described embodiments, according to the present invention, a box-shaped frame body which is installed by engaging with the air supply opening opened on the wall surface of the building, and the inside of the frame body are provided. An air supply opening provided so as to allow the supply air to pass through, a heater that heats by supplying electric power and heats the supply air that passes through the air supply opening, and a supply air that passes through the air supply opening. Wind direction detecting means for detecting the direction of air flow and outputting a power application signal, power control means for supplying power to the heater by using the power application signal output by the wind direction detecting means as input, and this power control means Since the electric wiring for supplying electric power to the heater is provided and the electric power is supplied to the heater only when the flow direction of the supply air is the indoor side direction, it is efficient only when the temperature control of the supply air is required. Provide a natural air supply device that can heat the supply air Kill.

Further, it is provided with a temperature setting means for setting a desired temperature and a temperature sensor for detecting the outdoor temperature, and if the outdoor temperature detected by the temperature sensor is equal to or lower than the temperature set by the temperature setting means, power control is performed. Since the means is provided with the desired temperature comparison means for outputting the power application signal, the supply air can be heated only when the outside air temperature is lower than the set temperature.

An indoor temperature sensor for detecting the indoor temperature and an outdoor temperature sensor for detecting the outdoor temperature are provided.
Since the temperature comparison means for outputting a power application signal to the power control means is provided when the outdoor temperature detected by the outdoor temperature sensor is lower than the indoor temperature detected by the indoor temperature sensor, the outdoor temperature is Only when it is low can the heating of the feed air take place.

[Brief description of drawings]

FIG. 1 is a sectional view showing the structure of a natural air supply device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the configuration of the natural air supply system of the second embodiment.

FIG. 3 is a cross-sectional view showing the configuration of the natural air supply system of the third embodiment.

FIG. 4 is a perspective view showing a configuration of a conventional natural air supply device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Air supply opening 4 Heater 5 Power application signal 6 Wind direction detection means 7 Power control means 8 Electric wiring 9 Temperature setting means 10 Temperature sensor 11 Desired temperature comparison means 12 Indoor temperature sensor 13 Outdoor temperature sensor 14 Temperature comparison means

Claims (3)

[Claims] 1. A box-shaped frame body which is installed by engaging with an air supply opening opened on a wall surface of a building, and an air supply provided so as to allow supply air to pass through the frame body. A heater that generates heat by supplying electric power to the opening and heats the supply air passing through the supply air opening, and the direction of the flow of supply air passing through the supply air opening is detected, and a power application signal is output. Wind direction detection means,
The electric power control means for supplying electric power to the heater by inputting the electric power application signal output by the wind direction detecting means and the electric wiring for supplying electric power to the electric power control means are provided, and the flow direction of the supply air is the indoor side. A natural air supply device configured to supply electric power to the heater only in the direction. 2. Temperature setting means for setting a desired temperature,
A temperature sensor for detecting the outdoor temperature, and if the outdoor temperature detected by the temperature sensor is less than or equal to the temperature set by the temperature setting means, a desired temperature comparison means for outputting a power application signal to the power control means is provided. Item 1. The natural air supply device according to item 1. 3. An indoor temperature sensor for detecting an indoor temperature and an outdoor temperature sensor for detecting an outdoor temperature, wherein the outdoor temperature detected by the outdoor temperature sensor is lower than the indoor temperature detected by the indoor temperature sensor. The natural air supply device according to claim 1, further comprising temperature comparison means for outputting a power application signal to the power control means.