KR200462114Y1 - A fan apparatus using regular/irregular turn - Google Patents

Abstract

The present invention relates to a ventilation apparatus through the forward and reverse rotation of the fan of the fan installed in the building, and more particularly, to change the number of times the forward / reverse rotation of the fan fan in accordance with the required ventilation amount and volume in the room in real time. The present invention relates to a technology capable of maintaining a constant pressure in a room and performing efficient temperature management.

Ventilator using the forward and reverse rotation of the ventilator of the present invention is installed in the part penetrating the indoor and outdoor to exhaust the indoor air to the outside when the forward rotation, and at least one to suck the outdoor air into the interior when the reverse rotation Ventilator; Switching means for switching the rotational direction of the fan of the fan; An outdoor temperature sensor installed at an outdoor side to measure an intake air temperature; And calculating a required ventilation amount by using a difference between heat generated in a room and a predetermined difference between an indoor allowable temperature and an intake air temperature, and dividing the required ventilation amount by the volume of the room to rotate the fan in a fan per unit time. It is characterized in that it comprises a controller for determining the number of times of switching, and controlling the switching means by the determined number of times of switching the rotational direction of the fan of the fan.

Reverse rotation, ventilation, reverse operation, ventilation, cooling

Description

Ventilation system using forward and reverse rotation of fan {A FAN APPARATUS USING REGULAR / IRREGULAR TURN}

The present invention relates to a ventilation apparatus through the forward and reverse rotation of the fan of the fan installed in the building, and more particularly, to change the number of times the forward / reverse rotation of the fan fan in accordance with the required ventilation amount and volume in the room in real time. The present invention relates to a technology capable of maintaining a constant pressure in a room and performing efficient temperature management.

In general, the ventilator is installed at a portion penetrating the interior and the exterior of the building, and serves to infuse outdoor cold air into the room through the intake or exhaust action, or to exhaust the indoor hot air to the outside.

As described above, the indoor ventilation device using the fan is well shown in Korean Utility Model Registration No. 20-0402010.

According to the technology disclosed in the Republic of Korea Utility Model Publication No. 20-0402010, when the indoor air is 90% <measurement humidity> 95%, and the measurement temperature is less than 15 ℃, the fan motor is rotated forward by the first gate When the air is exhausted to the outside, and the indoor air is 95% ≦ measurement humidity and the measurement temperature is less than 15 ° C., the fan motor is reversely rotated by the second end gate, and the outside air is taken in to the room.

As described above, in order to prevent condensation from being generated on the interior side wall due to the difference in temperature and humidity with the room, the indoor air is vented by ventilating to the outside, or outdoor air is introduced into the room for a short time. There was an effect of preventing condensation by lowering the temperature gradient to prevent condensation, but has the following problems.

If the indoor air is 90% <measurement humidity> 95% and the measurement temperature is less than 15 ℃, the indoor air pressure is exhausted to the outside, so the indoor air pressure is lower than the outdoor air pressure, resulting in negative pressure in the room. Generated, and external dust is rapidly introduced into the room.

In addition, a worker in the room may feel a dull ear, dizziness or dizziness due to a sudden air pressure difference, or may complain of difficulty breathing. And the rapidly introduced dust increases the failure rate of the equipment accommodated in the room.

Therefore, it is very important that indoor air maintains a positive pressure higher than atmospheric pressure.

As a result, the conventional technology has a problem in that there is no recognition for maintaining a constant pressure state of indoor air only by rotating the fan forward or reverse according to temperature, humidity, and relative humidity.

The present invention is proposed to solve the above problems of the prior art,

The purpose of the present invention is to change the number of switching from the forward / reverse to reverse / forward rotation in real time according to the volume of the indoor fan and the amount of ventilation required for efficient indoor temperature management To provide a ventilator using the forward and reverse rotation of the fan to maintain the.

In addition, another object of the present invention is to block dust inflow during intake of the fan.

In addition, another object of the present invention is to operate a separate cooling device when the room temperature exceeds the room allowable temperature.

Ventilation apparatus using the forward and reverse rotation of the ventilator of the present invention for achieving the above object is installed in the part penetrating the indoor and outdoor to exhaust the indoor air in the forward rotation, the outdoor air in the reverse rotation to the indoor One or more fans to inhale; Switching means for switching the rotational direction of the fan of the fan; An outdoor temperature sensor installed at an outdoor side to measure an intake air temperature; And calculating a required ventilation amount by using a difference between heat generated in a room and a predetermined difference between an indoor allowable temperature and an intake air temperature, and dividing the required ventilation amount by the volume of the room to rotate the fan in a fan per unit time. It is characterized in that it comprises a controller for determining the number of times of switching, and controlling the switching means by the determined number of times of switching the rotational direction of the fan of the fan.

Here, the required ventilation amount of the present invention is calculated according to Equation 1 below.

[Equation 1]

(Q: required ventilation volume, H: heat generated (Kw), 3600: time (seconds), 1.2: specific air weight (Kg / m3), 1.01: room static specific heat (Kcal / Kg. ℃), T2: preset indoor tolerance) Temperature, T1: intake temperature)

Meanwhile, the ventilator of the present invention is surrounded by a mesh to prevent dust inflow during intake.

Meanwhile, the present invention additionally includes an indoor temperature sensor, and the controller cools the room by operating a separate air conditioner provided that the room temperature measured by the room temperature sensor exceeds the room allowable temperature.

The present invention improves the basic purpose of efficiently managing the room temperature through exhaust and intake by using a fan, while switching the rotation direction to the conversion frequency calculated according to the volume and heat generation amount of the room air. By maintaining the constant pressure of the foreign matter such as dust can be prevented from entering the outdoors.

In addition, the ventilator of the present invention is wrapped by a mesh can exhibit the effect of blocking the dust flowing in the intake operation of the ventilator.

In addition, the controller of the present invention minimizes the use of the air conditioner according to the temperature rising by exceeding the ventilation capacity of the summer fan by operating a separate air conditioner when the room temperature measured by the temperature sensor exceeds the room allowable temperature. It can suppress the temperature rise in the room and maintain the pleasant indoor environment.

In addition, the present invention is to change the direction of rotation by using a general ventilator switching means even if the fan does not have a function to switch to forward or reverse rotation.

Therefore, the ventilation apparatus according to the present invention can be universally constructed without the need for replacing or mechanically modifying a conventionally installed ventilator, thereby reducing the cost.

Hereinafter, with reference to the accompanying drawings will be described specific details for the practice of the present invention.

Ventilator 100 using the forward and reverse rotation of the fan according to the present invention, as shown in Figure 2, basically a fan 10, the switching means 20, the indoor temperature sensor 30, the outdoor temperature sensor 40 , The setting unit 50, the controller 60, and the like.

Hereinafter, each component will be described.

The ventilator 10 largely includes a motor (not shown), a fan (not shown), an airflow guide (not shown), a frame (not shown), and a motor support (not shown).

The motor serves to rotate the rotating shaft (not shown) forward or reverse by the control of the switching means 20 to be described later.

Here, the motor of the fan 10 applied to the present invention may be made of a direct current or an alternating current motor, but preferably made of an alternating current motor.

The fan is coupled to the rotating shaft of the motor to forward or reverse rotation along with the rotating shaft to transfer the air from the front to the rear in the longitudinal direction of the rotation shaft to exhaust, or to transport from the rear to the front to intake.

The air flow guide portion is formed in a substantially circular ring shape, and is positioned with a gap between the outside of the fan so as to concentrate the air flow toward the fan side.

The frame is formed on the outside of the airflow guide so that it can be easily installed in the part penetrating the indoor and outdoor of the building.

The motor support part is fixed to one side of the frame and serves to receive, fix and support the motor.

On the other hand, the ventilator 10 made as described above may be further provided with a mesh (not shown).

The mesh is attached to an adhesive means such as Velcro tape attached to the outer circumferential surface of the airflow guide part of the fan 10, and is easily attached and detached. The fan 10 is wrapped around the inside of the airflow guide part in which the fan is rotated in the fan 10. When the intake operation by the reverse rotation of the dust is blocked from entering the indoors from the outdoor.

Here, the ventilator 10 of the present invention is preferably shown in Figure 1, one is installed on one side of the room, the vent hole 11 may be installed on the other side of the room, but is not necessarily limited thereto, Even if the vent is not provided, the intake and exhaust performance of the ventilator 10 may not be significantly affected.

Meanwhile, at least one fan 10 may be installed at one side and the other side of the inside of the fan 10.

At this time, one of the ventilator 10 located on one side and the other side of the room is rotated forward by the exhaust fan 10, the other side of the fan can be intake and exhaust the air in the room more efficiently by reverse rotation intake. Meanwhile, the rotational direction of the one side and the other side of the fan 10 may be switched per unit time to cross-repetitively operate the rotational direction between the one side and the other side of the fan 10 to allow intake and exhaust of indoor air more efficiently.

Meanwhile, the switching means 20 controls to convert the motor of the fan 20 from forward rotation / reverse rotation to reverse rotation / forward rotation, preferably a pair respectively connected to both sides of the motor of the fan 20. The relay has a Vcc terminal, a ground terminal, and a 0V terminal, respectively, and the relays on both sides are symmetrical to each other according to a control signal of a controller described later, that is, the relay on one side is a Vcc terminal. -0V terminal-When switching to ground terminal, the other relay is switched to ground terminal-0V terminal-Vcc terminal.

On the other hand, as another embodiment of the switching means 20, the switching means 20 is used by each of the operation coil of the motor of the fan 10 and one SSR (solid-state relay) installed on both ends of the starting capacitor of the starting coil. According to the switching signal from the forward / reverse to reverse / forward rotation from the controller to be described later, the corresponding SSR is turned on / off to forward / reverse rotation, reverse rotation, and forward rotation of the fan 10. You can perform the switching function.

That is, the switching means 20 receives a switching signal from the forward / reverse rotation to the reverse / forward rotation from the controller, and is connected to the Vcc terminal / ground terminal according to the received control signal and forwardly rotates the fan 10. Reverse rotation by switching to ground terminal / Vcc terminal or reverse rotation by switching to Vcc terminal / ground terminal reversely connected to ground terminal / Vcc to reverse rotation-> reverse rotation of fan 10 , Reverse rotation-> forward rotation can be performed. When the pair of relays are all located at the 0V terminal / 0V terminal, the fan 10 is stopped.

The fan of the fan 10 applied to the present invention by the switching means 20 as described above is not equipped with a conversion function to forward rotation or reverse rotation, that is, the fan 10 or reverse provided only the forward rotation function By simply connecting even the fan 10 equipped with a rotation function can perform a switching function to forward / reverse rotation, the switching means 20 can be applied to the present design of the existing installed fan 10 as it is It has universality.

Meanwhile, the indoor temperature sensor 30 and the outdoor temperature sensor 40 are connected to the controller 50 to be described later, and transmit the measured temperature information to the controller 50. Each of the indoor temperature sensor 30 and the outdoor temperature sensor 40 is provided on the indoor side and the outdoor side. Wherein the indoor temperature sensor 30 is to measure the temperature of the room, the outdoor temperature sensor 40 is to measure the temperature of the air actually inhaled without error so as to measure the outdoor temperature, that is, the intake temperature. Preferably, it is preferably installed close to the fan 10 on the outdoor side.

On the other hand, the controller 50 of the present invention controls the air conditioner 200 such as an air conditioner installed separately in the room, and when the room temperature is higher than the room allowable temperature, the air conditioner 200 operates to operate the room temperature below the room allowable temperature. The room can be cooled until

On the other hand, the setting unit 50 is to be able to set the operation start temperature, the room allowable temperature, the volume of the room and the amount of heat generated, etc. of the ventilator 10, the controller 60 to be described later through the setting unit 50 It is possible to recognize the input operation start temperature, indoor allowable temperature, indoor volume and generated heat.

The controller 60 is connected to the switching means 20, the indoor temperature sensor 30 and the outdoor temperature sensor 40, the cooling device 200 and the setting unit 50 of the present invention to control each component As a function, the required ventilation amount is calculated using a difference between heat generated in the room, a preset indoor allowable temperature, and an intake air temperature, and the required ventilation amount is divided by the volume of the room to provide a fan per unit time (10). Determine the number of times of rotation of the rotation direction, and controls the switching means 20 by the determined number of times of switching serves to switch the rotation direction of the fan (10).

Here, the required ventilation amount is calculated according to [Equation 1] below.

[Equation 1]

Where Q is the required ventilation amount, H is the amount of heat generated (Kw), 3600 is the time (seconds), 1.2 is the air specific weight (Kg / m3), 1.01 is the room static specific heat (Kcal / Kg. ° C), T2 is the preset indoor allowable temperature, and T1 is the intake air temperature.

On the other hand, the number of conversion is calculated according to Equation 2 below.

&Quot; (2) &quot;

Where N is the number of transitions, Q is the required ventilation and V is the volume of the room.

Here, since the heat generated in the room usually has a relationship of 1Kw = 860 Kal / H, the heating element disposed in the room, that is, the power consumption described in the specification of the equipment is applied.

For example, if the equipment placed indoors generates a total of 1,211 Kal / H of heat, the generated heat is 1,211 / 860 = 1.4 Kw.

Meanwhile, when the allowable indoor temperature set in the setting unit 50 is 28 ° C. and the intake air temperature measured by the outdoor temperature sensor 40 is 20 ° C., the required ventilation amount of the room is calculated by using Equation 1 above. Is the same as

When the volume of the room is 100m ³ , the number of conversions is calculated through Equation 2 using the required ventilation amount of the room calculated in Equation 1 as follows.

회/h

Times / h

That is, since 5.2 times per hour, approximately 5 times are determined as the number of switching and the time distribution of intake and exhaust is determined as 6 minutes: 6 minutes, and the reverse / reverse at the forward / reverse rotation of the motor of the fan 10 per hour. The changeover to the forward rotation is performed five times.

Here, in the case of underground workplaces with a small temperature change, the intake and exhaust time distribution may be adjusted to be longer than the exhaust time, such as 10 minutes: 2 minutes.

On the other hand, when the temperature of the room measured by the room temperature sensor 30 exceeds the allowable room temperature, the controller 60 operates the cooling device 200 until the current temperature of the room becomes less than the room allowable temperature.

Looking at the process of the ventilation device 100 using the forward and reverse rotation of the ventilator 10 of the present invention by the configuration as described above with reference to FIG.

First, after the user turns on the ventilation device 100 (S10), and sets the operation start temperature, room allowable temperature, etc. of the fan 10 in the setting unit 50, the controller 60 is a room temperature sensor ( 30 to receive the current temperature of the room, and compare it with the operation start temperature (for example, 25 ℃) (S20), if the current temperature of the room is above the operation start temperature, the fan of the fan 10 is determined. It rotates in either direction of rotation or reverse rotation.

Subsequently, the controller 60 calculates a necessary ventilation amount by using a difference between heat generated in a room in real time, a preset indoor allowable temperature, and an intake air temperature, and divides the required ventilation amount by the volume of the room to provide a fan per unit time. The number of switching of the fan rotation direction of 10) is determined.

Therefore, by controlling the switching means 20 by the number of times determined per set time to switch the rotation direction of the fan of the fan 10 to exhaust the indoor air to the outside or intake the outdoor air to the indoor (S30).

Subsequently, the controller 60 compares the present temperature measured by the room temperature sensor 30 with the room allowable temperature (eg, 30 ° C.) set in the setting unit 50 (S40), and the room temperature sensor 30. When the current temperature measured in the above is above the room allowable temperature, the cooling apparatus 200 is driven until the current temperature becomes below the room allowable temperature (S50).

In this case, when the cooling device 200 is driven, the controller 60 stops the operation of the fan 10, and in real time, the controller 60 measures the current temperature and the setting unit 50 measured by the indoor temperature sensor 30. By comparing the room allowable temperature set in the (S40) with each other (S40), if the current temperature measured by the room temperature sensor 30 is more than the room allowable temperature continues to drive the cooling device 200, the measured current temperature is indoor If the temperature is lower than the allowable temperature, the cooling apparatus 200 stops operation, and proceeds to S30 again, and rotates the fan of the fan 10 in either the forward rotation or the reverse rotation.

1 is a side cross-sectional conceptual view showing a ventilator using a forward and reverse rotation of the ventilator of the present invention installed in a building.

Figure 2 is a block diagram of a ventilator using the forward and reverse rotation of the ventilator of the present invention.

Figure 3 is a flow chart of the operation of the ventilation device using the forward and reverse rotation of the ventilator of the present invention.

Claims (4)

At least one fan installed at a portion penetrating indoors and outdoors to exhaust indoor air to the outside during forward rotation, and to suck outdoor air to the interior during reverse rotation; Switching means for switching the rotational direction of the fan of the fan; An outdoor temperature sensor installed at an outdoor side to measure an intake air temperature; And The required ventilation amount is calculated using the difference between the heat generated in the room and the preset indoor allowable temperature and intake temperature, and the required ventilation amount is divided by the volume of the room to determine the rotation direction of the fan of the fan per unit time. And a controller for determining the number of switching and controlling the switching means by the determined number of switching to switch the rotational direction of the fan of the fan. The method of claim 1, The necessary ventilation amount is a ventilation device using the forward and reverse rotation of the fan, characterized in that calculated according to the following equation (1). [Equation 1]

(Q: required ventilation volume, H: heat generated (Kw), 3600: time (seconds), 1.2: specific air weight (Kg / m3), 1.01: room static specific heat (Kcal / Kg. ℃), T2: preset indoor tolerance) Temperature, T1: intake temperature) The method of claim 1, The ventilator is a ventilation device using the forward and reverse rotation of the ventilator, characterized in that it is wrapped by a mesh to prevent dust inflow during intake. The method of claim 1, The ventilator further includes an indoor temperature sensor, and the controller controls the air conditioner separately provided when the room temperature measured by the room temperature sensor exceeds the room allowable temperature to cool the room. Ventilation using rotation.

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