JPS63201432A - Space heating system - Google Patents

Abstract

PURPOSE:To insulate the noise from a fan without overheating the fan, by covering the fan with a noise insulating box and by providing a noise absorber at the inlet of a cooling air provided on the noise insulating box. CONSTITUTION:In this space heating system, a fan 2 is covered with a noise insulating box 3, a noise absorber 5 is provided at the inlet of a cooling air 4 provided on the noise insulating box 3, and an open-close door 6 is fitted to the inlet of a cooling air 4. The inlet of a cooling air 4 is closed by the door 6 at the starting time of air heating. The fan 2 is driven at the same time when combustion is started in an air heating apparatus 1. When the temperature in a motor 17 for the fan 2 is increased, a thermo-reactive part 20 is deformed to open the door 6 and the inlet of a cooling air 4 is opened. The outdoor air flows into the noise insulating box 3 from the inlet of a cooling air 4 to cool the fan 2. The noise of a fan 2 leaked from the inlet of a cooling air 4 is absorbed by the noise absorber 5 and it is not leaked outside as a noise.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a central heating system.

[Background Art 1] There is a system in which high-temperature air generated from a heating device such as a stove is sent to each room in the room by a blower to perform heating using a central heating method. FIG. 5 shows an example, in which a high-temperature air duct 10 that discharges high-temperature air generated by combustion of a heating device 1 such as an FF stove and an air supply duct 11 that supplies air to the heating device 1 are connected to a house A. Warm air blowing ducts (piped between the second floor floor 12 and the first floor ceiling 13) branched from the high temperature air duct 10)
- is opened to each room B, B, etc. in house A.

A blower PIi2 formed by attaching a motor and a fan driven by the motor is connected to the high-temperature air duct 10, and blows the high-temperature air generated from the heating device 1 with the blower 2. Each warm air blowing duct through 10) 14. From 14... to each room B, B
High temperature air is supplied to each room B, central heating system.
In Figure 5, 15 is an exhaust duct for the toilet and kitchen, 16 is a heat exchanger, and air is returned between each room 8 as shown by the arrow. It is.

And in the heating system configured as above,
The air blower 8!2 generates noise because it is operated by driving a motor with a motor, but if this air blower 2 is installed near a living room, noise becomes a problem.

For this purpose, cover blower 2 with a sound insulation box and blow air! Attempts have been made to confine the noise from the air blower 1112 within the sound insulating box so that the noise from the blower 2 does not become a problem. However, since the sound insulation box is formed in a sealed structure to prevent noise from escaping, the heat of the motor is trapped inside the sound insulation box, creating the problem that there is a risk of overheating in the motor coils. . In particular, since the high-temperature air generated from the heating device 1 acts on the blower fi2, overheating tends to occur in the coil portion of the motor.

[Object of the Invention] The present invention has been made in view of the above points, and an object of the present invention is to provide a heating system that can block the noise of a blower with a sound insulation box without fear of overheating the blower. It is something.

[Disclosure of the Invention] The heating system according to the present invention is a heating system in which high-temperature air generated from a heating device 1 is sent to each room of a house by a blower fi2, and the blower 2 is covered with a sound insulation box 3 to provide sound insulation. It is characterized by forming a cooling port 4 for introducing outside air for cooling into the box 3, providing a sound absorber 5 in the cooling port 4, and attaching a door 6 to the cooling port 4, which can be opened and closed freely. By forming a cooling port 4 with a sound absorber 5 and a door 6 in a sound insulation box 3, it is possible to block out noise without overheating the blower 2. will be explained in detail with examples.

FIG. 1 shows an embodiment of the present invention, in which a motor 1
7 and a fan driven by a motor 17 built into a casing, the blower 2 is disposed between the floor 12 on the second floor and the ceiling 13 on the first floor. Guku) 10 is connected. High temperature air duct 1
0 is formed by an inlet duct 10a and an outlet duct 10b, where the inlet duct 10a is a mantel 18 on which a heating device 1 such as an FF stove is installed and a blower 8.
! 10
b is derived from the air blower 1fi2 and is the hot air blower gukt 1
4 to each room B of house A. In FIG. 1, 11 is an air supply duct connected to the mantel 18. The blower 2 is covered by a sound insulating box 3 in the form of a closed box, and a suction duct 19 is connected to the opening between the sound insulating box 3 and the mantel 18. The sound insulation box 3 is provided with a cooling port 4 that is opened, and a sound absorber 5 is attached to the outer surface of the sound insulation box 3 at the opening edge of the cooling port 4. The sound absorber 5 can be formed by a glass tube or the like, but it can also be formed by a muffler as shown in FIG. Further, a door 6 is rotatably attached to the cooling port 4 of the sound insulation box 3, so that the cooling port 4 can be opened and closed by the folding screen 6. In the embodiment shown in FIG. 1, a thermally responsive member 20 such as a shape memory alloy or a bimetal is installed between the coil portion of the motor 17 and the door 6, and when the temperature of the coil portion of the motor 17 rises, the thermally responsive member 20 deforms, causing the door to open. 6 as shown in the imaginary line in Fig. 1 to open the cooling port 4, and when the temperature of the coil section of the motor 17 falls, the thermally responsive member 20 returns to its original shape and closes the door. 6, the cooling port 4 can be closed again.

However, since the temperature of the blower 2 is low at the start of heating, the cooling port 4 is closed by the door β.

When the heating device 1 is combusted and the blower 2 is operated, the air supplied from the air intake 11 is mixed with the air returned from the room and heated by the heating device 1 to become high-temperature air. The high temperature air is introduced into the blower 2 from the air blower 2 through the air blower 2.
The high-temperature air duct 10 is sent out by the blowing action)
10b can be supplied to each room via a temperature bath duct 14. Here, since the blower 2 is covered with a sound insulating box 3, the sound generated from the blower 2 can be prevented from echoing into the living room as noise.Next, the temperature of the motor 17 of the blower 8!2 can be prevented. When the temperature of the coil section rises, the thermally responsive member 20 deforms in accordance with this temperature and operates the door 6 to open the cooling port 4. Inside the sound insulation box 3 is a suction duct 19 and an introduction port). 10a, and the inside is in a reduced pressure state, so when the cooling port 4 is opened in this way, outside air in the ceiling flows into the sound insulation box 3 from the cooling port 4. However, the blower 2 can be cooled. Since the sound absorber 5 is attached to the cooling port 4 even when the cooling port 4 is in an open state, the sound of the blower 2 leaking from the cooling port 4 is absorbed by the sound absorber 5 and does not leak to the outside as noise. can be prevented.

Note that if the door 6 is not attached to the cooling port 4 and the door 6 is always left open, outside air will flow into the sound insulation box 3 from the cooling port 4 even at the start of heating (rise II), and this outside air will flow into the suction duct 1.
9 into the blower 2, the amount of air returned from the room to the heating device 1 is small.
The efficiency of air circulation between each room B of A and the heating device 1 decreases, and the heating temperature rises slowly. For this reason, it is necessary to provide M6 in the cooling port 4 to control opening and closing of the cooling port 4.

In the embodiment shown in FIG. 3, the lever 22 is rotated by operating the string 21, and the door 6 can be rotated in accordance with the rotation of the lever 22. It can be opened and closed by. Therefore, with this device, the opening and closing of the cooling port 4 of the sound insulation box 3 can be controlled manually.

In the embodiment shown in FIG. 4, the air supply duct 11 is connected to the sound insulation box 3 via the sound absorber 5.
A branch duct 23 branched from the suction duct 19 is connected to the suction duct 19. Further, in this embodiment, the motor 17 of the blower 2
A temperature sensor 24 is attached in close contact with the surface of the casing of the coil portion, and a motor 25 for electrically operating the door 6 attached to the cooling port 4 and the temperature sensor 24 are electrically connected to a controller 26, respectively.

In this case, the temperature of the blower 2 is not high and the sound insulation box 3
When the cooling port 4 is closed with the door 6, air is supplied from the air supply duct 11 through the branch duct 23 and into the mantel 18 via the suction duct 19, and is mixed with air returned from the room. It is heated by the heating device 1 in this state.

Furthermore, when the temperature of the motor 17 of the blower 2 rises and the temperature of the coil increases, the controller 26 controls the electric motor 25 according to the temperature detected by the temperature sensor 24, rotates the door 6, and closes the cooling port 4. It can be opened. When the cooling port 4 is opened in this way, the supply/non-supply duct 11
A part of the air supplied from the cooling port 4 is supplied to the sound insulation box 3.
The blower 2 can be cooled with this air.

The air that has flowed into the sound insulation box 3 in this way joins the air that has flowed from the air supply duct 11 through the branch duct 23 within the suction duct 19 . Therefore, in this embodiment, the sound insulation box 3
Whether the cooling port 4 is open or closed,
This means that air can be supplied from the air supply duct 11 with the same amount of air.

[Effects of the Invention] As described above, in the present invention, the blower is covered with a sound insulation box, a cooling port is formed in the sound insulation box for introducing outside air for cooling, and a sound absorber is provided in the cooling port. By installing a door that can be opened and closed freely, by opening the cooling vent, outside air can be introduced into the sound insulation box, and the fan inside the sound insulation box can be prevented from overheating due to abnormal heat generation. Also, even when the cooling port is open, the sound absorber installed in the cooling port can prevent the sound of the blower from leaking from inside the soundproof box, and the soundproof box can prevent noise without fear of leakage. It is something that can be done.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of a part of an embodiment of the present invention, Fig. 2 is a partially cutaway perspective view of an embodiment of the sound absorber used in the above, and Fig. 3 is a part of another embodiment of the same. FIG. 4 is a sectional view of a part of still another embodiment of the same, and FIG. 5 is a schematic diagram showing the entire heating system. 1 is a heating IIC unit, 2 is a blower, 3 is a sound insulation box, 4 is a cooling port, 5 is a sound absorber, and 6 is a door.

Claims (3)

[Claims] (1) In a heating system that sends high-temperature air generated from a heating device to each room of a house using a blower,
The blower is covered with a sound insulation box, a cooling port is formed to introduce outside air for cooling into the sound insulation box, and a sound absorber is installed in the cooling port.
A heating system characterized by having a door attached to a cooling port that can be opened and closed. (2) The heating system according to claim 1, wherein the door is formed to open and close the cooling port in response to a rise in temperature of the blower. (3) The heating system according to claim 1, wherein the door is formed so that the cooling port can be opened and closed manually.