JPS58130920A - Ventilation system - Google Patents

Abstract

PURPOSE:To reduce burden of an air ventilating system for the attic of a house with respect to air conditioning operation by using a system in which the ventilating system is oprated by means of two signals of any of plural temperature sensor through a switch circuit having an opening temperature difference below a given closing temperature difference. CONSTITUTION:A switch 21 is switched toward the summer side, then a thermister 14 comes into contact with a switch circuit 18, electric current is supplied to a damper motor 24, and a damper 4 through which hot air in the hut attic is discharged to the outside is opened. When the switch 22 is switched to the winter side, a thermister 15 is connected with the switch circuit 18 and a motor 25 opens a damper 6 leading to the inside of the space of the hut attic. In either case, the thermisters 14 and 15 operate a temperature difference switch 9 according to the temperature differences in the space of the attic, whereupon the contact point 10 is actuated by closing and opening temperature differences of the contact point 10 of the temperature difference switch 9 set by the knobs 11 and 12, the motor 26 is controlled, and a ventilator 1 is thus controlled. Thus, the air is effectively discharged in the summer season, warm air is utilized in the winter season, and total operation time of the ventilator is shortened.

Description

[Detailed Description of the Invention] The present invention relates to a ventilation system that effectively treats air in the attic space of a building, and eliminates the need for manual intervention to remove hot air from the attic space, which increases the heat load of the entire building in the summer. The system automatically, efficiently, and accurately discharges air without any effort, reducing the cooling load.In addition, in the winter, the warm air in the attic space is automatically and effectively used without human intervention, reducing the heating load. The purpose of this project is to reduce operating costs by operating intermittently in both summer and winter to shorten total operating time.

Conventionally, the attic space 101 was ventilated using a ventilation gear 102 attached to the building as shown in Fig. 1, but this was done through natural ventilation, which resulted in extremely poor ventilation efficiency.
Particularly on days with no wind, little ventilation effect could be expected. Therefore, during the day in summer, the air in the attic space was heated by sunlight on the roof surface, and the air in the attic space was often 20 to 30 degrees higher than the outside temperature, depending on the structure, materials, location, etc. of the building. . Therefore, even if the air conditioner was operated during the day, the heat load increased, making it extremely difficult for the room temperature to drop. Also, even if the outside temperature drops at night,
The ventilation in the attic space was extremely poor, so the hot air in the attic space did not escape and the temperature did not drop, making it difficult for the room temperature to drop. As a result, the heat load on the air conditioner increased and the operating cost increased.In addition, in the winter, even though there is warm air in the attic space, it is not used effectively, reducing the heat load on the heating system. It had the disadvantage that it was not actively used to reduce the amount of waste.

The present invention solves the above-mentioned conventional drawbacks, and embodiments thereof will be described below with reference to FIGS. 2 to 4.

In the figure, 1 is a ventilation system installed in the attic space 2, 3 is a suction port for introducing air from the attic space 2 into the ventilation system 1, and 4 is a vent for discharging hot air from the attic space 2 to the outdoors. 6 is an electric damper installed in the middle of a duct 8 connected to the ventilation system 1 to introduce warm air from the attic space 2 into the room 7. It's a damper. 9 is a switch (hereinafter referred to as a temperature difference switch) in which the contact 1o closes when the temperature difference between two points is turned ON by a preset temperature difference, and the temperature difference between the two points is set in advance (hereinafter referred to as a temperature difference switch); Different temperature switch Sochi 9
A knob 12 is provided on the temperature difference switch 9 to set the "ON" temperature difference at which the contact 10 of the temperature difference switch 9 closes, and 12 sets "OFF" the temperature difference at which the contact 10 of the temperature difference switch 9 opens. 13 is an operation indicator lamp provided on the temperature difference switch 9 to display the open/closed state of the contact 10 of the temperature difference switch 9. Lights up when the contact 10 is closed. 14 is a thermistor for sensing the outside temperature, and is installed under the eaves in a place that is not exposed to direct sunlight and is not exposed to rain. 16 is a thermistor that senses the indoor temperature of the room 7 into which warm air from the attic space 2 is introduced, and can sense the average temperature of the room 7 rather than directly above the heating device or in a place exposed to direct sunlight. place. 16 is attic space 2
This is a thermistor j for sensing the temperature of the room, and is installed at a position where it can sense the temperature near the suction port 3 of the ventilation system 1 installed in the attic space 2. The thermistor 16 is then directly connected to a switch circuit section 18 of the temperature difference switch 9 via a compensation conductor 17. Furthermore, the thermistors 14 and 16 enter the temperature difference switch 9 through compensation conductors 19 and 2°, respectively.
Thereafter, the switch circuit section 18 is connected via the changeover switch 21.
◇The changeover switch 21 has two interlocking and independent contacts 22 and 23, the contact 22 is for switching the connection between the switch circuit section 18 and the thermistor 14 or 16, and the contact 23 is for connecting the switch circuit section 18 to the thermistor 14 or 16. and for switching the connection to the electric damper 4 or 6.

When the changeover switch 21 is set to the summer side, the thermistor 14 and the switch circuit part 18 are connected through the contacts 22, and the electric damper 4 and the power source are connected through the contacts 23, the motor 24 is energized, and the electric damper 4 is opened. O Also, when the changeover switch 22 is set to each side, the thermistor 16 and the switch circuit part 18 are connected through the contact 22, and the electric Danno (-6) is connected to the power source through the contact 23, and the motor 26 is energized. The electric damper 6 is opened. Also, 26 is the motor of the ventilation system 1. In the above configuration, when the season is summer, when the changeover switch 21 is set to the summer side, the electric damper 4 is opened and the electric damper 6 is closed. '!A consistent 0 Also, in conjunction with this, the thermistor 14 is connected to the switch circuit section 18, so the temperature difference switch 9 detects the temperature difference between the thermistors 14 and 16, that is, the temperature difference between the outside air temperature and the temperature in the attic space 2. Next, the temperature difference TON1 at which the contact 1o closes and the temperature difference 0FF1 at which the contact 10 opens are set using the ON setting knob 11 and the OFF setting knob 12.

(However, it is set so that TONl>TOFFl.

) When the temperature difference between the attic space 2 and the outside air temperature reaches ToNl, the contact 10 closes, the motor 26 is energized, the ventilation system 1 starts operating, and the hot air in the attic space 2 is transferred to the electric damper. 6 is closed and the electric damper 4 is open, the air is guided from the suction port 3 to the ventilation device 1, passes through the duct 6, and is discharged outdoors.゛Then, the temperature in the attic space 2 gradually drops, and the temperature difference between it and the outside temperature becomes ``! When the voltage becomes 0FF1, the contact 1o is opened and the power supply to the motor 26 is stopped, and the operation of the ventilation system 1 is stopped. Then, when the temperature in the attic space 2 gradually rises due to solar radiation and the temperature difference from the outside air temperature reaches TON, the operation of the ventilation system 1 is resumed. The above operation is repeated until the amount of solar radiation decreases and the temperature difference between the temperature of the attic space 2 and the outside air temperature no longer reaches TON1. During this period, the ventilation system 1 performs intermittent operation, so compared to when the ventilation system 1 is operated continuously, the operation time is shorter and there is no extra operating cost. The hot air in space 2 can be completely exhausted outdoors.
It is possible to prevent the heat load from increasing. In addition, in winter, when the changeover switch 21 is set to each side, the electric damper 6 is opened and the electric damper 4 remains closed.In conjunction with this, the thermistor 15 is connected to the switch circuit section 18. Therefore, the temperature difference switch 9 is operated based on the temperature difference between the thermistors 15 and 16, that is, the indoor temperature of the room 7 and the temperature of the attic space 2. Next, the temperature "OH2" at which the contact 1o closes and the temperature f "0FF" at which the contact 10 opens
2 to "ON" setting knob 11 and "O" as in summer.
)Then, the temperature difference between the temperature in the attic space 2 and the indoor temperature in room 7 is ``OH2''.
When this happens, the contact 10 closes, the motor 26 is energized, the ventilation system 1 starts operating, and the warm air in the attic space 2 is ventilated through the suction port 3 because the electric damper 4 is closed and the electric damper 6 is open. The person is guided by the device 1 through the duct 8 and into the room 7. Then, the temperature in the attic space 2 gradually decreases, and when the temperature difference with the indoor temperature of the room 7 reaches 0FF2, the contact 10 opens and the power to the motor 26 is stopped, and the operation of the ventilation system 1 is stopped. , then attic space 2
When the temperature of the ventilation system 1 gradually rises due to solar radiation and the temperature difference between the temperature of the attic space 2 and the indoor temperature of the room 7 reaches "OH2", the operation of the ventilation system 1 is resumed. This process is repeated until the temperature difference between the attic space 2 and the indoor temperature of the room 70 no longer reaches OH2.During this period, the ventilation system 1 operates intermittently as in summer, so if the ventilation system 1 is operated continuously, Comparatively, the operating time is short and there is no extra operating cost, and in addition, warm air from the attic space 2 can be introduced into the room 7 without the need for manpower, making it possible to reduce the heating load. becomes. Furthermore, FIG. 6 is a graph for explaining the summer operation pattern of the ventilation system, with temperature plotted on the vertical axis and time plotted on the horizontal axis. In the same graph, the solid line represents the temperature in the attic space 2, and the one-point steel wire represents the outside air temperature at time 1.
11... is the operating time of ventilation system 1.
29 39 Yes. Therefore, the total driving time is 11+12+13+...
..., and the operating time is extremely short compared to continuous operation. Furthermore, the timing of the start and end of the driving cycle can be accurately determined without requiring any human intervention. Furthermore, as shown in Figure 1, the curve represented by a broken line is the temperature in the attic space when the gear gallery 102 is installed and the hot air in the attic space is not forcibly discharged by the ventilation system, and the temperature in the attic space is abnormal. It can be seen that the heat load is increasing due to the high temperature. Moreover, FIG. 6 is a graph for explaining the winter operation pattern of this ventilation system, and as in the case of summer, the vertical axis represents temperature and the horizontal axis represents time. In the same graph, the solid curve represents the attic space 2.
, and the curve represented by the one-dot chain line is the indoor temperature of the room 16. t1tt21'3t... is the operating time of the ventilation system 1, as in the summer. Therefore, the total operating time is 11+12+13..., which is extremely short compared to continuous operation as in summer. Furthermore, the timing of the start and end of the driving cycle can be accurately determined without any manual intervention.
This is the temperature of the attic space 2 when J102 is installed, and it can be seen that the warm air in the attic space is left unused. In addition, the curve represented by the two-dot chain line is the indoor temperature of room 7 when this ventilation system is not operated, and the indoor temperature of room 7 is lower than when the same ventilation system is operated, and the load when heating is large. I understand that.

As described above, according to the present invention, it is possible to efficiently discharge the hot air in the space that increases the heat load of the entire building in the summer, thereby reducing the cooling load, that is, the operating cost of the cooling system, and in the winter, the warm air in the space can be discharged. It becomes possible to introduce the heating system indoors and make effective use of it, thereby reducing the heating load, that is, the operating cost of the heating device. Furthermore, the equipment can be operated automatically and accurately without human intervention, and intermittent operation can shorten the total operating time of the ventilation equipment, reducing operating costs. It is effective.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a building equipped with a conventional attic ventilation gear gallery, Fig. 2 is a sectional view of a building fitted with a ventilation system according to an embodiment of the present invention, and Fig. 3 is a connection of the ventilation system. Figure 4 is a wiring diagram of the same ventilation system, and Figure 5 is a wiring diagram of the ventilation system.
The figure is a graph showing the summer operating pattern of the ventilation system.
FIG. 6 is a graph showing the winter operating pattern of the ventilation system. 1... Ventilation system, 2... Attic space,
4...Electric damper, 6...'11 dynamic da7per, 9...Differential temperature switch, 1o...
...Contact, 11...Knob, 14...Thermistor, 16 Fist...Thermistor, 16...
Thermistor, 21...Selector switch, 22・I
・・0 contact, 23-II・・φ・contact, 24・@@ma
@Motor, 26 e＊＊＊e*Motor, 26-@---
motor. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 3 Figure 4 q Figure 5 Figure 6

Claims (1)

[Claims] When the difference between the two ambient temperatures reaches the predetermined value "ON", the contact closes, and the difference between the two ambient temperatures reaches the predetermined value "0FF (
A switch circuit whose contacts open when OFF < TON, three or more temperature sensing parts, and a signal from any two temperature sensing parts connected to the three or more temperature sensing parts above is connected to the above switch circuit. a damper that switches the ventilation of a plurality of ducts communicating with the space in which the temperature sensing portion is provided, and a ventilation device that blows air into the duct; A ventilation system that automatically operates the above ventilation equipment using a switch circuit.