JP2006283367A - Attic space heat exhaust system using constant ventilation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an attic space heat exhaust system capable of effectively releasing heat in an attic space to the outside and effectively releasing indoor heat in summer and realizing it with simple system constitution. <P>SOLUTION: Indoor air sucked through an indoor air suction port 7 is exhausted outdoors through a constant ventilating blowoff port 8, a duct 10 and an exhaust port 11 by closing a damper 12. The indoor air is blown off into the attic space 2 from an attic space blowoff port 9 without a duct by opening the damper, and air in the attic space is exhausted outdoors through ventilation ports 3, 3 provided in the attic space. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a shed back heat exhaust system.

  Conventionally, as shown in FIG. 4 (a), on the flat roof 51, a plurality of ventilation openings 53, 53 communicating with the shed 52 are provided on the outer wall side, and the shed is provided by natural ventilation through the ventilation openings 53, 53. As shown in FIG. 4 (b), the sloped roof 54 is provided with an air supply port 55 in the eave portion and an exhaust port in the ridge portion. 56 is provided, and the hut 57 is ventilated by natural ventilation using an increase in temperature difference.

  However, since any ventilation is left to nature and a large air volume cannot be expected, the back of the huts 52 and 57 become considerably hot in the summer. In particular, in the case of the flat roof 51, as the driving force for ventilation, temperature difference ventilation due to height cannot be expected in the cabin 57, so that the ventilation of the cabin is small and hot air tends to be accumulated. On the other hand, the constant ventilation has a problem that it is easy to trap hot air indoors in summer because the air volume is small.

  In view of the above problems, the present invention can effectively discharge hot air in the back of the shed outside in the summer, and can also effectively discharge indoor hot air. It is an object of the present invention to provide a shed back heat exhaust system that can be realized with a simple system configuration.

The above problem is that a ventilator comprising a fan, an indoor air inlet, a vent for continuous ventilation, a shed outlet opening in the back of the shed, and a damper for opening and closing the shed outlet is provided. Installed in
The ventilation outlet of the ventilation device is connected to the exhaust outlet of the building by a duct,
When the damper is closed, the indoor air sucked through the indoor air suction port is discharged to the outside through the ventilation port, duct, and exhaust port for regular ventilation.
By opening the damper, the indoor air sucked in through the indoor air inlet blows out from the back of the hut to the back of the hut without duct, and the air in the back of the hut is discharged to the outside through the ventilation opening provided in the back of the hut. This is solved by a shed exhaust heat system that is always used in combination with ventilation.

  In this system, a ventilator that is always open and ventilated by connecting a ventilating outlet to the exhaust outlet with a duct is provided with a shed outlet that is opened and closed by a damper and opens to the back of the hut without a duct. Therefore, it is easy to send the air sucked from the room to the back of the shed with a large air volume by opening the back of the shed in the ductless without the duct, and by opening the damper in the summer, Can be effectively discharged to the back of the hut, and hot air from the back of the shed can be effectively discharged to the outside through the ventilation opening.

  Moreover, since a single ventilator is provided with a constant ventilation function and a shed back heat exhausting function so as to share a fan and an indoor air inlet, it can be realized with a simple system configuration.

  In the above shed back heat exhaust system, if the fan is configured to be able to switch between a low rotation speed operation mode when the damper is closed and a high rotation speed operation mode when the damper is open, In combination with the ductless opening directly to the back of the hut, in the summer, the damper is opened and the fan is set to the high speed operation mode, so that the air sucked from the room is brought into the shed with a larger air volume. The hot air in the cabin can be discharged to the outside more effectively, and the indoor hot air can be discharged more effectively to the outside.

  Further, in the above shed exhaust heat system, when the shed is a roof of a flat roof and the shed outlet of the ventilator opens upward, the air blown out to the shed through the shed outlet The airflow can be dispersed in all directions by hitting the lower surface of the roof base of the flat roof, and the exhaust heat from the back of the cabin can be efficiently performed.

  Since the shed exhaust heat system of the present invention is as described above, the hot air in the shed can be effectively discharged outside in summer, and the indoor hot air can also be effectively discharged. In addition, it can be realized with a simple system configuration by always using ventilation.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  The roof exhaust heat system shown in FIG. 1 to FIG. 3 is applied to the roof 2 of the flat roof 1. As shown in FIG. A plurality of ventilation openings 3 for natural ventilation are provided, and a ventilation device 4 is installed.

  As shown in FIG. 1 (b), the ventilator 4 includes a case 6 in which a fan 5 is housed, a room air suction port 7, a constant ventilation outlet 8, and a shed back vent that opens to the shed 2. The outlet 9 for regular ventilation is connected to the exhaust outlet 11 of the building by the duct 10, and the outlet 9 for the back of the hut is opened and closed by the damper 12, and the damper 12 is opened. The fan 5 is opened ductlessly so as to open upward, and the fan 5 has a low rotation speed operation mode when the damper 12 is closed and a high rotation speed when the damper 12 is open. It can be switched to the operation mode. Furthermore, the indoor air inlet 7 is provided on the lower surface side of the case 6 and opens into the room 13 without a duct.

  In winter and intermediate periods, as shown in FIG. 3 (a), when the damper 12 of the ventilation device 4 is closed and the fan 5 is set to the low rotation speed operation mode, the room 13 is constantly ventilated with a low air flow, The back 2 is ventilated by natural ventilation through the vents 3 and 3, and in the summer, as shown in FIG. 3 (b), the damper 12 of the ventilator 4 is opened and the back of the shed 9 is opened to the back of the hut 2, When the fan 5 is set to the high rotation speed operation mode, the air sucked from the room 13 becomes a large air volume and is sent to the cabin 2 and the hot air in the cabin 13 is effectively discharged to the cabin 2 and the hot air in the cabin 2 is discharged. Is also effectively discharged through the ventilation openings 3 and 3.

  The above-described shed back heat exhaust system may be configured such that switching of the damper 12 and switching of the operation mode of the fan 5 are performed by an on / off switch operation, but in this embodiment, switching is automatically performed. It is made to be done. That is, when the temperature sensor 14 is installed in the cabin back 2 and the cabin 15 is read by the sensor 14 in the control unit 15 as shown in FIG. 2 (a) (step S1), the temperature is set to a predetermined set value. For example, it is determined whether or not the temperature has reached 30 ° C. (step S2). If the temperature has reached, the damper 12 is opened and the fan drive unit and the fan drive unit are not shown in FIG. (Step S3), if not reached, the damper 12 is closed and the control for setting the fan 5 to the low speed operation mode is performed on the damper driving unit and the fan driving unit (step S4). .

  In addition, the temperature sensor 14 is installed in a hallway where air conditioning inside the building is not performed, or installed in an air supply duct, installed outdoors, and based on the set temperature set for each case, The same control as described above may be performed.

  Thus, according to the above-described shed back heat exhaust system, the ventilation outlet 4 is connected to the exhaust outlet 11 by the duct 10 and the ventilation apparatus 4 that performs the ventilation is opened and closed by the damper 12 and is ductless. Since the shed back outlet 9 that opens in the shed 2 is provided, when the shed outlet 9 opens in the shed 2 without a duct, the air sucked in from the room 13 is generated in a large amount of air. In this embodiment, the fan 5 can be switched between a low rotation speed operation mode when the damper is closed and a high rotation speed operation mode when the damper is open. In summer, the damper 12 is opened and the fan 5 is set to the high speed operation mode, so that the hot air in the room 13 can be effectively discharged to the cabin 2 and the heat of the cabin 2 is It can be discharged to the outside to effectively through ventilation opening 3.

  In addition, since the single ventilation device 4 has the constant ventilation function and the shed back heat exhaust function as described above and shares the fan 5 and the indoor air intake port 7, it has a simple system configuration. Can be realized.

  And in this embodiment, since this shed exhaust heat system is applied to the shed of a flat roof, and the shed outlet 9 of the ventilator 4 is opened upward, the shed through the shed outlet 9 The air blown to 2 can be applied to the lower surface of the roof base of the flat roof 1 to disperse the airflow in all directions, and the exhaust heat of the hut 2 of the flat roof 1 can be efficiently performed.

  FIG. 2 (b) shows a modification of the ventilator, and the shape of the case 6 is designed so that the shed back outlet 9 opens directly above the shed 2 and the damper 12 is blown out of the shed. It is provided so as to be hidden inside the mouth 9. According to this structure, the air blown out from the cabin back outlet 9 can be more evenly distributed, and the exhaust heat efficiency of the cabin back 2 can be further increased.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above-described embodiment, the case where the shed back heat exhaust system is applied to the shed of a flat roof is shown, but it can be applied to the shed of other roof such as a sloped roof.

  Moreover, in said embodiment, although the fan 5 with which the ventilation apparatus 4 is provided consists of what can switch between a low speed operation mode and a high speed operation mode, the shed back outlet 9 is ductless and the hut back In the case where a sufficient amount of air can be blown out to the back of the hut just by opening the damper 12 by the action of opening to 2, a fan with a fixed rotational speed may be used.

FIG. 1 (a) is a front view showing the shed back heat removal system of the embodiment, and FIG. 2 (b) is an enlarged front view of the main part of the ventilator part. FIG. 1A is a flowchart of control, and FIG. 2B is a front view showing an example of a ventilator. Fig. (A) is a front view showing the operating state of the system in winter and intermediate periods, and Fig. (B) is a front view showing the operating state of the system in summer. FIGS. 1A and 1B are front views showing a conventional attic ventilation system, respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Land roof 2 ... Back of a hut 3 ... Ventilation port 4 ... Ventilation device 5 ... Fan 7 ... Indoor air suction port 8 ... Regular ventilation outlet 9 ... Hut back outlet 10 ... Duct 11 ... Exhaust port 12 ... Damper 13 ... Indoor

Claims (3)

A ventilator comprising a fan, a room air inlet, a ventilation outlet for constant ventilation, a shed outlet opening in the back of the shed, and a damper for opening and closing the shed outlet is installed in the shed.
The ventilation outlet of the ventilation device is connected to the exhaust outlet of the building by a duct,
When the damper is closed, the indoor air sucked through the indoor air suction port is discharged to the outside through the ventilation port, duct, and exhaust port for regular ventilation.
By opening the damper, the indoor air sucked in through the indoor air inlet blows out from the back of the hut to the back of the hut without duct, and the air in the back of the hut is discharged to the outside through the ventilation opening provided in the back of the hut. A shed exhaust heat system with constant ventilation, which is characterized by   The shed exhaust heat system with continuous ventilation according to claim 1, wherein the fan is capable of switching between a low rotation speed operation mode when the damper is closed and a high rotation speed operation mode when the damper is open.   The shed exhaust heat system with constant ventilation according to claim 1 or 2, wherein the shed is a hut with a flat roof and the shed outlet of the ventilation device is opened upward.

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