JPH11125450A - Heat-exchange type ventilating fan and method for ventilation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a room to be in an optimum air-conditioned state by a simple operation, corresponding to seasonal change. SOLUTION: A controller of a heat-exchange type ventilating fan is provided with a spring button, a summer button, a autumn button, and a winter button for controlling, according to four seasons, an exhausting fan and an air-supply fan, and by selecting an operation mode according to season, a room is allowed to have an optimum air-conditioned state without troublesome operation by a user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a heat exchange type ventilation fan and a ventilation method.

[0002]

2. Description of the Related Art A ventilator has been proposed which detects a polluted indoor air with a sensor and drives a ventilation fan to ventilate a living room, while when there is hot air or odor, a ventilation device is manually operated to ventilate the room. (See JP-A-6-185768).

[0003] However, the function of the ventilator is complicated, and it is difficult for ordinary users to understand what kind of operation should be performed to obtain an optimal environment in the living room. Also,
Japan has four seasons, a special climatic condition not found in other countries, but there is no idea of ventilating living rooms in response to such changes in the four seasons.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an optimum air-conditioning state in a living room in a simple operation in response to changes in the four seasons in consideration of the above fact.

[0005]

According to the first aspect of the present invention, there is provided an air supply means for supplying outdoor air, an exhaust means for exhausting indoor air, a filter disposed in an air supply passage, and an outdoor air supply. And a heat exchanger for exchanging heat with the room air constitute a heat exchange type ventilation fan.

[0006] This heat exchange type ventilation fan is provided with an operation mode for controlling the exhaust means and the air supply means corresponding to the four seasons. If the operation mode corresponding to the four seasons is selected, the user can perform complicated operations. Even without doing so, the interior of the living room can be set to the optimal air-conditioning state.

According to the second aspect of the present invention, the operation modes include a spring mode, a summer mode, an autumn mode, and a winter mode.

[0008] When the spring mode is selected in the spring, the exhaust means is turned off and only the air supply means is turned on. Thereby, pollen and dust contained in the outdoor air are removed by the filter, and a clean and comfortable environment can be created in the living room. In addition, since the pressure in the living room is higher than the pressure in the surroundings, it is possible to prevent pollen and the like from entering through the gap.

When the summer mode is selected in summer, particularly at night, the exhaust means is turned off and only the air supply means is turned on. Thereby, the comfortable (cool) air of the outdoor air can be taken into the living room as it is, and the temperature of the living room can be naturally lowered without cooling. Further, when the room temperature falls below the set room temperature, the exhaust means is turned on, and heat exchange ventilation is performed to prevent overcooling.

When the winter mode is selected in winter, both the exhaust means and the air supply means are turned on. Thereby, the outdoor air and the indoor air are simultaneously supplied and discharged, and the heat exchanger exchanges heat between the outdoor air and the indoor air. As a result, the exhausted heat is recovered, and the cold outdoor air is warmed and taken into the living room, so that heat energy can be saved and dew condensation can be prevented. In addition, in the winter mode, particularly when the room temperature is lowered, the amount of ventilation for both the supply air and the exhaust air is gradually reduced to take into consideration excessive cooling during non-heating.

On the other hand, when the fall mode is selected in the fall, the mode is switched to the winter mode when the outside temperature falls below the set outdoor temperature, and the mode is switched to the summer mode when the outside temperature rises above the set outdoor temperature. As a result, it is possible to create an optimal environment for the living room in response to the changing climate. The difference between the autumn mode and the winter mode is that the winter mode does not switch to the summer mode even if the room temperature increases, thereby preventing malfunction due to heating heat.

According to the third aspect of the present invention, a heat exchange type ventilation fan having an air purifying function and a heat exchange function is mounted in the living room, a first exhaust ventilation fan is provided in the center of the building, and a sanitary zone is provided in the sanitary zone. A second exhaust ventilation fan that operates continuously for 24 hours is provided.

These ventilation facilities are provided with an operation mode for controlling the heat exchange type ventilation fan and the first exhaust ventilation fan corresponding to the four seasons, and if the operation mode corresponding to the four seasons is selected, the user becomes complicated. It is possible to bring the interior of the living room into an optimal air-conditioning state without performing a complicated operation.

According to the fourth aspect of the present invention, the operation modes include a spring mode, a summer mode, an autumn mode, and a winter mode.

When the spring mode is selected in the spring, the exhaust means is turned off and only the air supply means is turned on. Thereby, pollen and dust contained in the outdoor air are removed by the filter, and a clean and comfortable environment can be created in the living room. Further, since the air pressure in the living room becomes higher than the atmospheric pressure in the surroundings, in particular, the air pressure in a sanitary zone such as a toilet where the second exhaust ventilation fan is continuously operated, dirty air does not flow into the living room.

When the summer mode is selected in summer, particularly at night, the exhaust means is turned off and only the air supply means is turned on. Thereby, the comfortable (cool) air of the outdoor air can be taken into the living room as it is, and the temperature of the living room can be naturally lowered without cooling. at the same time,
Since the first exhaust ventilation fan is driven to generate an air flow from the living room to the center of the building, fresh outdoor air is taken into the living room without being affected by external factors such as wind direction,
The accumulated hot air is discharged from the first exhaust ventilation fan to the outside.

When the winter mode is selected in winter, both the exhaust means and the air supply means are turned on. Thereby, the outdoor air and the indoor air are simultaneously supplied and discharged, and the heat exchanger exchanges heat between the outdoor air and the indoor air. As a result, the exhausted heat is recovered, and the cold outdoor air is warmed and taken into the living room, so that heat energy can be saved and dew condensation can be prevented.

Since the sanitary zone has a negative pressure by the second exhaust fan, the air in the building is
The water flows from the living room and the center of the building to the sanitary zone and is discharged outside.

On the other hand, when the fall mode is selected in the fall season, the mode is switched to the winter mode when the outside temperature falls below the set outdoor temperature, and the mode is switched to the summer mode when the outside temperature rises above the set outdoor temperature. As a result, it is possible to create an optimal environment for the living room in response to the changing climate.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a heat exchange type ventilation fan 10 according to a first embodiment has a grill 18 fitted into a ventilation opening 16 opened in an outer wall 14 of a building 12. The grill 18 is vertically divided by a partition plate 20, and the partition plate 20 forms an exhaust passage 22 and an air supply passage 24.

An exhaust fan 26 is arranged in the exhaust passage 22, and an air supply fan 28 is arranged in the air supply passage 24. The exhaust fan 26 is turned by drive motors 30 and 32, respectively. The supply motor 32 and the exhaust motor 30 are connected to a controller 34.

The controller 34 is connected with an outdoor sensor 36 for detecting the outdoor temperature and an indoor sensor 38 for detecting the temperature in the living room.

The controller 34 includes a main switch 50, an air volume adjustment button 52, a spring button 54 for selecting a spring mode, a summer button 56 for selecting a summer mode, an autumn button 58 for selecting an autumn mode, and a winter mode. A selectable winter button 60 is provided.

On the other hand, the heat exchanger 4
2 is arranged so that the supplied outdoor air 44 and the exhausted indoor air 46 exchange heat with the heat exchanger 42. A filter 48 is attached to the outlet of the air supply passage 24 so as to purify the air to be taken in.

Next, the operation of the heat exchange type ventilation fan according to this embodiment will be described. As shown in FIG. 4, the spring button 54, the summer button 56, the autumn button 58, and the winter button 60 are provided on a one-to-one basis so as to meet user needs (pollution countermeasures, hot air discharge, automatic switching, condensation prevention). The operation is not complicated and buttons can be selected intuitively.

For example, when the spring button 54 is pressed in the spring, according to the set spring mode (see FIG. 4), as shown in FIG. 1, the exhaust fan 26 is stopped, and only the air supply fan 28 is driven. As a result, harmful substances such as pollen, soot, and dust contained in the outdoor air are removed by the filter 48, and a clean and comfortable environment can be created in the living room 62. Further, as shown in FIG. 3, since the pressure in the living room 62 is higher than the pressure in the surroundings, it is possible to prevent pollen and the like from entering through the gap.

When the summer button 56 is pressed during the summer night, the exhaust fan 26 is stopped and the air supply fan 28 is stopped according to the set summer mode (see FIG. 4), as shown in FIG.
Only drive. Thereby, the comfortable (cool) air of the outdoor air can be taken into the living room 62 as it is,
The temperature of the living room 62 can be naturally lowered without cooling. For this reason, energy can be saved.

Further, when a temperature lower than the set room temperature is detected by the room sensor 38, the exhaust fan 26 is turned on, and the heat is exchanged so that the living room 62 is controlled not to be too cold. Also, since there is no need to open the window,
Even when going out or going to bed, outdoor air can be taken into the living room 62 as it is. Further, since the living room 62 has a positive pressure, hot air does not flow from the surroundings.

On the other hand, when the winter button 60 is pressed in winter, the exhaust fan 26 and the air supply fan 28 are driven according to the set winter mode (see FIG. 4), as shown in FIG. As a result, the outdoor air 44 and the indoor air 46 are simultaneously supplied and discharged, and the heat exchanger 42 exchanges heat between the outdoor air 44 and the indoor air 46.

Therefore, the exhausted heat is recovered, and the cold outdoor air 44 is heated and taken into the living room 62, so that heat energy can be saved and dew condensation can be prevented.

When the fall button 58 is pressed during the fall, the automatic switching mode is set according to the set fall mode.
When a temperature lower than the set outdoor temperature is detected by the outdoor sensor 36, the mode is switched to the winter mode, and the heat exchange type ventilation fan 1 is set.
0 performs simultaneous supply and discharge. When a temperature higher than the set outdoor temperature is detected by the outdoor sensor 36, the mode is switched to the summer mode, and only the air supply operation is performed.

As described above, in a changing climate such as autumn, an optimum environment for a living room is created based on the outdoor temperature.

In this embodiment, the air supply and exhaust motors are provided separately.
6 and the air supply fan 28, the clutch may be provided on the drive shaft of the motor so that the exhaust fan 26 does not rotate when the spring mode or the summer mode is selected.

Next, a ventilation method using the heat exchange type ventilation fan according to the present invention will be described. As shown in FIGS. 5 and 6, the heat exchange type ventilation fan 10 is attached to the living room 62, and the exhaust heat ventilation fan 70 is attached to the ceiling of the second floor hall 68 constructed in the center of the building. The air taken in by the exhaust heat ventilation fan 70 is discharged outside through a duct 72 arranged in the attic.

The exhaust heat ventilator 70 is connected to the controller 34 described in the first embodiment, and is controlled on and off. Further, the toilet 74 is provided with a ventilation fan 78 that operates continuously for 24 hours, and the air pressure in the toilet 74 is lower than the surrounding air pressure.

Next, the operation of the ventilation method according to this embodiment will be described. 8, a spring button 54, a summer button 56, an autumn button 58, and a winter button 60 of the controller 34.
Are arranged in a one-to-one relationship to meet user needs (pollen countermeasures, hot air discharge, automatic switching, dew condensation prevention), so that operation is not complicated and buttons can be selected intuitively. It has become. Here, the ventilation fan 78 is always in operation and the toilet 74 is in a negative pressure state.

For example, when the spring button 54 is pressed in the spring, the exhaust fan 26 is stopped and only the air supply fan 28 is driven according to the set spring mode (see FIG. 8), as shown in FIG. As a result, harmful substances such as pollen, soot, and dust contained in the outdoor air are removed by the filter 48, and a clean and comfortable environment can be created in the living room 62. Moreover, since the air pressure in the living room 62 becomes higher than the surrounding air pressure, it is possible to prevent pollen and the like from entering through the gap. further,
Since the ventilation fan 78 operates continuously for 24 hours, odor does not leak into the living room 62.

When the summer button 56 is pressed during the summer night, the exhaust fan 26 is stopped and the air supply fan 28 is stopped in accordance with the set summer mode (see FIG. 8), as shown in FIG.
Only drive. Thereby, the comfortable (cool) air of the outdoor air can be taken into the living room 62 as it is,
The temperature of the living room 62 can be naturally lowered without cooling. For this reason, energy can be saved.

Further, as shown in FIG. 7, since the living room 62 has a positive pressure and the second floor hall 68 has a negative pressure, and the exhaust heat ventilation fan 70 operates at the same time, the flow of air from the living room 62 to the second floor hall 68 And fresh outdoor air is taken into the living room 62 without being affected by external factors such as the wind direction. In addition, since hot air is concentrated in the second-floor hall 68, it is possible to efficiently remove hot air.

When a temperature lower than the set indoor temperature is detected by the indoor sensor 38, the exhaust fan 26 is turned on to control the heat exchange so that the living room 62 is not excessively cooled. Further, since it is not necessary to open the window, the outdoor air can be taken into the living room as it is, even when it rains, goes out, or goes to bed. Further, since the living room 62 has a positive pressure, hot air does not flow from the surroundings.

On the other hand, when the winter button 60 is pressed in winter, the exhaust fan 26 and the air supply fan 28 are driven according to the set winter mode (see FIG. 8), as shown in FIG. As a result, the outdoor air 44 and the indoor air 46 are simultaneously supplied and discharged, and the heat exchanger 42 exchanges heat between the outdoor air 44 and the indoor air 46.

As a result, the exhausted heat is recovered, and the cold outdoor air 44 is warmed and taken into the living room.
Thermal energy can be saved and dew condensation can be prevented. And the air in the living room 62 is
Through the ventilation fan 78 of the toilet 74. When the fall button 58 is pressed in the fall, when the temperature lower than the set outdoor temperature is detected by the outdoor sensor 36 in accordance with the set fall mode (see FIG. 8), the mode is switched to the winter mode, and the heat exchange type ventilation fan is set. 10 performs simultaneous supply and discharge. When a temperature higher than the set outdoor temperature is detected by the outdoor sensor 36, the mode is switched to the summer mode, and only the air supply operation is performed.

As described above, in a changing climate such as autumn, an optimum environment for a living room can be created based on the outdoor temperature.

[0044]

According to the present invention having the above-described structure, the interior of the living room can be set to the optimum air-conditioning state in a simple operation in response to changes in the four seasons.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view showing a state in which a heat exchange type ventilation fan according to the present embodiment performs only air supply.

FIG. 2 is a schematic cross-sectional view showing a state in which the heat exchange type ventilation fan according to the present embodiment performs simultaneous supply and discharge.

FIG. 3 is a conceptual diagram showing a building provided with a heat exchange type ventilation fan according to the present embodiment and the flow of air.

FIG. 4 is a table showing operation modes of the heat exchange type ventilation fan according to the embodiment.

FIG. 5 is a schematic sectional view showing a state in which only air is supplied by the ventilation method according to the embodiment.

FIG. 6 is a schematic cross-sectional view showing a state in which simultaneous supply and discharge are performed by the ventilation method according to the present embodiment.

FIG. 7 is a conceptual diagram showing a building provided with the ventilation method according to the present embodiment and the flow of air.

FIG. 8 is a table showing operation modes of the ventilation method according to the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Heat exchange type ventilation fan 26 Exhaust fan (exhaust means) 28 Air supply fan (air supply means) 30 Motor (exhaust means) 32 Motor (air supply means) 34 Controller 36 Outdoor sensor 38 Indoor sensor 42 Heat exchanger 48 Filter 54 Spring Button (Spring Mode) 56 Summer Button (Summer Mode) 58 Autumn Button (Autumn Mode) 60 Winter Button (Winter Mode) 70 Exhaust Heat Ventilation Fan (1 Exhaust Ventilation Fan) 78 Ventilation Fan (2nd Exhaust Ventilation Fan)

Claims (4)

[Claims] An air supply means for supplying outdoor air, an exhaust means for exhausting indoor air, a filter arranged in an air supply passage, a heat exchanger for exchanging heat between outdoor air and indoor air, A heat exchange type ventilation fan comprising: an operation mode for controlling the exhaust means and the air supply means in accordance with four seasons. 2. The operation mode includes a spring mode in which the exhaust unit is turned off and the air supply unit is turned on, and a spring mode in which the air supply unit is turned on and on / off control of the exhaust unit is performed based on a set room temperature. A summer mode, a winter mode in which the exhaust unit is turned on, and a winter mode in which the air supply unit is turned on, and an autumn mode in which the summer mode and the winter mode are selected based on a set outdoor temperature. Claim 1
The heat exchange type ventilation fan according to 1. 3. An air supply unit for supplying outdoor air, an exhaust unit for exhausting indoor air, a filter disposed in an air supply passage, a heat exchanger for exchanging heat between outdoor air and indoor air, In the living room, a heat-exchangeable ventilation fan equipped with a first exhaust ventilation fan is provided in the center of the building, and a second exhaust ventilation fan is provided in the sanitary zone for continuous operation. The ventilation method, wherein the exhaust unit, the air supply unit, and the first exhaust fan are controlled in this operation mode. 4. The operation mode includes a spring mode in which the exhaust unit is turned off and the air supply unit is turned on, and a spring mode in which the air supply unit is turned on and the exhaust unit and the first unit are set based on a set indoor temperature. A summer mode for turning on and off the exhaust ventilation fan, a winter mode for turning on the exhaust means and the air supply means, and an autumn mode for selecting the summer mode and the winter mode based on a set outdoor temperature, The ventilation method according to claim 3, wherein: