KR100872311B1 - Automatic system for cattle shed with air conditioning andcirculation - Google Patents

Abstract

An automatic ventilation system is provided to supply clean air into a livestock shed by using a plurality of electric heaters, a speed variable blower, temperature sensors, and a controller. An automatic ventilation system for a livestock shed comprises: an inlet(5), a channel(7), and an outlet(6) sequentially formed on a body(4); an insulated case(8); a blower; a plurality of electric heaters(14) installed between the blower and the outlet; a protection net; a temperature sensor(16) for sensing overheating of the electric heaters; a plurality of temperature sensors(17,20) for sensing overheating of the body; a temperature sensor for sensing indoor temperature of the livestock shed to control the electric heaters; and a temperature heater and a controller(13) for controlling rotary speed of a fan motor(9) of the blower.

Description

Barn Automatic Ventilation System {AUTOMATIC SYSTEM FOR CATTLE SHED WITH AIR CONDITIONING ANDCIRCULATION}

The present invention relates to a barn automatic ventilation system, and in particular, a blower in which the blowing amount is adjusted according to the temperature, an electrothermal heater for heating the blowing air to an appropriate temperature, and an anion generator for purifying the blown air with anions. Composed of a plurality of temperature sensors and controllers for temperature control and overheating prevention, the air supplied to the house is automatically regulated to an appropriate amount according to the room temperature and heated and anionized to the proper temperature. The environment was created.

In general, indoor ventilation is achieved by simply blowing outdoor air into the livestock house by using a large blower in the pig house, cage house, etc. to allow the indoor polluted air to be discharged to the outside. There was a problem that the fall environment did not fall.

In particular, in cold weather, the indoor temperature decreases as a large amount of cold air outside the barn flows into the room, and in the case of pigs, the growth and development of livestock is deteriorated due to cough, diarrhea and respiratory diseases due to the cold indoor environment. In the case of temperature-sensitive piglets, there were problems such as death.

On the other hand, a spray nozzle is installed in the blower to remove moisture from the air by cooling the air inside the house at the same time as the air is blown, but also to cool the indoor air, but it is not only a simple responsive air purification method. There is a problem that there is a fear that a favorable environment for breeding bacteria or pathogens inside the barn.

The present invention uses a plurality of electric heaters and a speed-changing blower, a temperature sensor and a controller to supply clean air in harmony with an optimal temperature and an optimal blowing amount to the inside of the house to achieve a pleasant indoor environment. The purpose is to provide a ventilation system.

Another object of the present invention is characterized in that the air supply amount (airflow amount) is automatically adjusted by using a blower whose speed is variable (the airflow amount is variable) according to a temperature deviation within a set temperature range.

Another object of the present invention is characterized by using a plurality of temperature sensors and controllers to prevent the overheating of the electric heater and the overheating of the ventilation system main body or the abnormal high temperature and abnormal low temperature in the house interior.

Another object of the present invention is characterized in that the clean air purified by using an anion generator is supplied to the barn room.

The present invention is composed of a blower that is controlled by the air blowing amount according to the temperature, an electric heater installed in front of the blower to heat the blown air to an appropriate temperature, and an anion generator for purifying the inlet air with anions to create a pleasant indoor environment of the house. .

In addition, not only the air supplied to the barn can be purified by the action of negative ions, but also it is possible to effectively reduce or almost eliminate particulates and odors, such as various influenza, pathogens and dust, including foot-and-mouth disease in the barn indoor air.

The present invention provides the optimal livestock growth environment by supplying the heating action of the electric heater, the blowing action of the blower, the anion action of the anion generator, and clean air uniformly supplied by the plurality of temperature sensors and controllers. There is an effect to be formed.

In addition, the present invention is heated by the heat transfer heater 14 and the blower when the room temperature falls below the set temperature, the heat transfer heater 14 is stopped and the blower is operated when the room temperature rises above the set temperature The indoor air is kept in a comfortable environment for breeding by dropping indoor air.

In addition, the present invention can be used safely because overheating is prevented in three stages by the plurality of temperature sensors 16, 17, and 20, and an overload circuit breaker is connected to the electric heater 14 and the blower so that they are overloaded or In the short state, the operating power is cut off by the overload circuit breaker, which prevents safety accidents such as overheating and fire.

In addition, the present invention can reduce the number of staff management because the indoor temperature is automatically controlled even in the four seasons and the day and night temperature difference is severe temperature difference, the summer season to obtain the cooling effect by using a blower that is shifted according to the temperature deviation and heating is In the required winter season, the heating effect is obtained by the electric heater.

In addition, the present invention not only cleans the inlet air by the anion, but also effectively eliminates or almost eliminates particulates and odors, such as various influenza, pathogens, and dust, including foot and mouth disease contained in the indoor air of the barn. It is a useful invention that can provide a large amount of air efficiently using little power and thus has an economical effect.

In addition, the present invention is not only a sudden change in the indoor temperature of the barn because the air supply amount is adjusted in multiple stages according to the temperature deviation, and provides a fresh and comfortable environment, the stress of the young piglets due to the temperature change and disease There is an effect such as providing a growth environment that can grow healthy without receiving.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the exemplary embodiments of the present invention, the same elements in the drawings are denoted by the same reference numerals as much as possible, and detailed descriptions of related well-known structures and functions will be omitted so as not to obscure the subject matter of the present invention.

The barn automatic ventilation system 1 of the present invention is installed in the upper part or the ceiling of the room 2a so that the air that is harmonized into the barn 2 room 2a can be supplied as shown in FIG. It is used in connection with the duct.

A plurality of air supply ducts 3 branched from the main ducts are also provided in parallel to the upper part or the ceiling of the room 2a. The main duct and the air supply duct 3 are made of synthetic resin or metal, and a plurality of exhaust holes 3a are formed at both sides of the air supply duct 3.

The exhaust hole 3a is formed to be gradually narrowed toward the end of the air supply duct 3 in which the blowing pressure is reduced, so that the blowing air is evenly blown into the room 3a.

The barn automatic ventilation system (1) of the present invention is the air supply duct (3) after the inlet air is heated to an appropriate temperature by the heat transfer heater (14) and the air purified by negative (-) ions is adjusted to an appropriate blowing pressure by the blower. Through the exhaust hole (3a) of the barn (2) is characterized in that it is evenly ejected to the room (2a) to create a comfortable barn indoor environment.

Figure 2 is a cross-sectional view of the barn automatic ventilation system 1 shown as an example of the present invention, the inlet 5, the outlet 6 and the flow path (7) is formed approximately in the center of the main body (4), The cylindrical insulating case 8 is installed in the middle of the flow path 7 or at the rear end of the flow path 7 close to the inlet 5, and the fan motor 9 and the blower fan 12 are disposed at substantially the center of the insulating case 8. The configured blower is installed.

The fan motor 9 is installed in the longitudinal direction of the insulating case 8 by a plurality of fixing members 10, and a blowing fan 12 is installed on the rotary shaft 11 so that the outside air and the inlet 5 It is supplied to the air supply duct 3 through the flow path 7 and the outlet 6.

And, even if a blower is installed in the flow path (7) portion, the flow path (7) is still secured and maintained between the insulating case (8) and the fan motor (9), the edge portion of the blower fan (12) It is so close that it does not contact the inner circumferential surface of the insulating case 8 to improve the blowing efficiency. The blower fan 12 is satisfactory if it is a type capable of introducing external air such as a propeller type or a sirocco type.

The speed of the fan motor 9 is controlled by the controller 13 and the motor driver 31 in a manner such as phase control or frequency control, and when the overheat, failure or rotation is unnecessary, the fan 13 operates by the controller 13. The fan motor 9 is stopped by disconnecting (blocking) the motor. Since the configuration and control method of the motor driver 31 is a technology that is already applied to other industries, a detailed description thereof will be omitted.

In the space between the outlet 6 and the blower fan 12, a plurality of heat transfer heaters 14 for heating the passing air (inlet air) to a predetermined temperature are installed, and the inlet 5 is provided with air from the outside. Protection net 15 is installed to prevent foreign matter from entering.

The temperature sensor 16 for detecting overheating of the heat transfer heater 14 is installed at a portion of the main body 4 in which the heat transfer heater 14 is installed, for example, a portion of the main body 4 adjacent to the heat transfer heater 14. On one side and the other side of the main body 4 part separated from the 14, a temperature sensor 17, 20 for detecting abnormally overheating or excessive overheating of the main body 4 in duplicate is provided.

In addition, the sensor detects the indoor temperature of the livestock house 2 but exceeds the set temperature range, and is installed in the livestock house 2 and the temperature sensor 18 for powering down the electric heater 14 in consideration of the set temperature and the present temperature deviation. It consists of a temperature sensor 19 for controlling the rotational speed of the fan motor 9 in stages or multiple stages according to the deviation temperature value, and a controller 13 installed at one end of the main body 4 to control them.

In the present invention, anion generator 21 is additionally installed. The negative ion generator 21 is installed in the main body 4 or the insulating case 8, and one or a plurality of negative electrodes 22 are installed to protrude into the insulating case 8. The negative electrode 22 is exposed to the flow path 7 by passing through the insulating case 8 with the needle point having a sharp end, and the negative electrode 22 is electrically connected to the high voltage generator 21a of the negative ion generator 21. A negative high voltage is applied to the ambient air in the flow path 7 to ionize the silver.

Therefore, the air supplied to the livestock house 2 (2a) by the blowing fan 12 is purified by negative ions and then supplied to the room (2a). Some of the anions (or some of the anions) in the clean air supplied to the room 2a purify the room 2a air.

The electrothermal heater 14 is used in two to five to heat the inlet air to the required temperature, one or two of the two to five electrothermal heater 14 until the required heating temperature is reached. Or three or four or five electrothermal heaters 14 are operated. In addition, the plurality of heater sinks 14a are attached to the outer circumferential surface of the heat transfer heater 14 at close intervals, thereby achieving effective heat dissipation.

The electrothermal heater 14 may be configured to automatically turn on / off the applied power using active elements such as triacs triggered by the controller 13, and of course, the user may manually The number of operations of the electrothermal heater 14 can be set.

In the hot summer of the present invention, the operation of the electric heater 14 is stopped, and only the blower is gradually shifted in accordance with the temperature deviation.

In addition to the temperature sensor 16, the electric heater 14 is configured such that the power supply is automatically cut off when an overload circuit breaker is connected in a direct heat and an overload or a short circuit occurs, thereby preventing overheating of the electric heater 14 and the electric heater 14 ) Can be protected. The overload circuit breaker (or the circuit breaker for both overload and leakage) or the overheat circuit breaker or the overload circuit breaker and the overheat circuit breaker.

In the drawings, reference numeral 23 is a fixing member, 24 is a piece, 25 is a nut, 26 is a supporting part, and 27 is a bracket.

3 is a circuit block diagram of the controller 13 shown as an example of the present invention.

Keypad and controller error that can input various data to the input of the control unit 28 composed of CPU, PLC, etc., and select operation status, operation mode, temperature setting, deviation temperature, etc. Setting unit 29, which is composed of a reset unit for resetting the time, the temperature sensor 16 for sensing the temperature of the electric heater 14, and the temperature of the main body 4 by detecting the double to prevent overheating And a temperature sensor 18 for sensing the temperature of the room 2a of the livestock house 2 so that the blower is controlled in multiple stages (for example, from 1 to 7). The temperature sensor 19 for sensing the temperature of the room 2a of the control panel and controlling the electric heater 14 is connected to each other, and a set value, a current value, an operating state, an alarm light, and the like are connected to the output of the control unit 28. The display unit 30 to be displayed, the motor driver 31 for controlling the on / off and the speed of the connected fan motor 9 and the inlet air are heated. The heat transfer heater 14, the negative ion generator 13 which generates negative ions to purify the inflow air, and the alarm unit 32 which emits an alarm with sound or light or sound and light when an abnormality is generated are respectively connected.

The controller 13 may be configured as a sequence circuit instead of a CPU or a PLC.

The display unit 30 includes a power indicator for displaying a power supply state, an operation indicator for indicating that the electric heater 14 is in operation, a blower fan operation indicator for displaying the operation state and the stage of the blower fan 12, It includes an alarm lamp for notifying various abnormal conditions and a temperature display unit for displaying the heating temperature of the electric heater 14, and is one or a composite of a liquid crystal display (LCD), a seven segment, or a light emitting diode. Of course, depending on the situation, the display may be configured as a touch screen for convenience of use.

The alarm unit 32 has an abnormality or overload of the fan motor 12, overheating of the electric heater 14, disconnection or short circuit of the temperature sensors 16, 17, 18, 19 and 20, low temperature or high temperature. An alarm is displayed and / or alarmed, and when the power of the blower is cut off, the power supplied to the electric heater 14 is immediately or unconditionally turned off to prevent overheating.

In the present invention, one of the temperature sensors 18 of the two temperature sensors 18 and 19 installed in the room 2a space senses the indoor temperature so that the on / off and the number of revolutions of the blower are adjusted. , The remaining one temperature sensor 19 senses the room temperature to allow the electric heater 14 to be turned on / off.

In the present invention, if the detected temperature of the temperature sensors 16, 17, 18 is 75 ℃ or more, the controller 13 is recognized as overheating of the heat transfer heater 14 or the main body 4 is supplied to the heat transfer heater 14 The power will be cut off.

That is, when the room temperature excessively rises above the set temperature due to a failure of the blower or the main body 4 is overheated, the heat transfer is performed by the temperature sensor 16 that primarily senses the heating temperature of the heat transfer heater 14. The power supplied to the heater 14 is cut off to prevent overheating, and the temperature sensor 17 is installed at one side of the main body 4 by the failure of the temperature sensor 16 to sense the surface temperature of the main body 4. The power supplied to the electric heater 14 is cut off to prevent overheating and is installed on the other side of the main body 4 due to a failure of the temperature sensor 14 to detect the surface temperature of the main body 4 again ( 20) the power supplied to the electric heater 14 is cut off, so overheating and fire of the main body 4 can be prevented in multiple stages (three stages).

4 is a flowchart illustrating an operation of the present invention.

First, setting the indoor temperature so that the indoor temperature of the barn 2 is maintained in the deviation temperature range, the deviation temperature which sets the blower to operate step by step, and setting the blower to be shifted according to the deviation temperature (S1). Step); Calculating a shift condition of the blower according to the deviation temperature by subtracting the indoor temperature of the livestock house 2a input from the temperature sensor 17 and the preset temperature previously input through the setting unit 29, and calculating the shift condition of the blower according to the deviation temperature ( Step S2); When the indoor temperature is lower than the set temperature, the blower is operated in the first stage, which is the lowest stage, and when the indoor temperature is greater than the set temperature, the blower is operated in two to seven stages according to the indoor temperature and the set temperature deviation temperature (S3). Step); An electrothermal heater operation step (S4 step) of heating the room temperature to be maintained in the deviation temperature range; When the indoor temperature is lower than the set temperature by comparing the indoor temperature of the livestock house 2a input from the temperature sensor 17 and the preset temperature input through the setting unit 29, the step of calculating the blower shift condition according to the deviation temperature is performed. And if the indoor temperature is higher than the set temperature, the indoor temperature and the set temperature comparison determination step of moving to the next step of determining the operation of the blower (step S5); Judging whether the blower is operating by the step according to the temperature deviation, if it operates normally, go to the next step, the overload judgment step. Step (step S6); A blower overload judging step (S7 step) for moving to an overheat check step of the heat transfer heater if the blower operates normally without overload, and stopping the heat transfer heater and outputting an abnormal alarm if the blower is overloaded; When the temperature input from the temperature sensor installed near the electric heater 14 is less than 75 ° C., it is determined that the electric heater 14 is not overheated, and the following routine is performed, and the temperature input from the temperature sensor is 75 ° C. or more. An electric heat heater overheat determination step (S8 step) of moving to the step of stopping the electric heat heater 14 and outputting an abnormal alarm (step S13); If the temperature input from the temperature sensor installed in the main body is less than 75 ° C, it is determined that the body 4 is not overheated and the following routine is performed. If the temperature input from the temperature sensor is 75 ° C or more, the electric heater is stopped and abnormally performed. A main body overheat determination step (S9 step) moving to an output of an alarm (step S13); When the indoor temperature is lower than the set temperature by comparing the indoor temperature of the livestock house 2a input from the temperature sensor 17 and the preset temperature input through the setting unit 29, the step of calculating the blower shift condition according to the deviation temperature is performed. If the indoor temperature is higher than the set temperature and the indoor temperature and the set temperature comparison determination step (S10 step) to perform the next routine; An electric heating heater power blocking step (S11 step) of stopping operation by shutting off power supplied to the electric heating heater when the indoor temperature is higher than the set temperature in the determining step (S10 step); Check whether there is an error of each of the temperature sensors 16, 17, 18, 19, and 20, and when the error of the temperature sensors 16, 17, 18, 19, and 20 is confirmed, A temperature sensor error checking step (S12 step) of moving to the step of stopping the heater 14 and outputting an abnormal alarm (step S13); When the overheating of the electric heater and the main body, an error in the temperature sensor, an overload of the blower, an abnormal overheating of the room, or the detection temperature of the temperature sensors 16, 17 and 20 is 75 ° C or higher, the electric heater 14 Stopping and outputting an abnormal alarm (step S13); LCD display of various setting and abnormal conditions such as electric heater's operation status (ON / OFF), blower's operation status (ON / OFF and number of stages), room temperature, set temperature, deviation temperature, detection temperature, temperature sensor error A display signal output step (step S14) displayed by an element LCD, a seven segment, a light emitting diode (LED), or the like; A system standby step (step S15) of switching the system to a standby state until the abnormality is eliminated; If the abnormality is not eliminated, it is routine to stop the heating heater and output the abnormal alarm.If the abnormality is completely eliminated, it is routinely calculated by calculating the blower shift condition according to the deviation temperature (step S2). It is a step of determining (step S16).

In the present invention, only a blower may be used, or a blower and an electric heater 14 may be used together, and the anion generator 21 may be used together or selectively according to the livestock conditions or seasons.

And, in the case of breeding pigs, the room temperature of the barn (2) can be normally set to 23 ℃ ~ 26 ℃ depending on the conditions of the barn or ventilation, the operating temperature of the blower can be set to 24 ℃ ~ 27 ℃, deviation The temperature can be set in the range of 1 ° C to 20 ° C.

The indoor temperature, the blower operating temperature and the deviation temperature may be changed to an appropriate temperature value in consideration of the barn condition or the ventilation condition. Then, when the electric heater 14 is operated, the blower operates unconditionally to prevent overheating. In the case of the lowest deviation temperature, the blower rotates at the lowest speed, and in the case of the highest deviation temperature, the blower rotates at the highest speed.

In the present invention, when the indoor temperature of the barn 2 is set to 26 ° C., and the deviation temperature is set to 3 ° C. (26 ° C. ± 3 ° C.), the temperature deviation range is 23 ° C. to 29 ° C., and the blower is provided in seven steps. The rotation speed is variable.

For example, when the temperature input from the temperature sensor 18 to the controller 13 is 23 ° C., which is the lowest temperature, the blower rotates at the lowest speed, for example, 1/7 of the maximum speed of the blower. The blower rotates at the speed of 2/7 of the maximum speed, and at 25 ℃, the blower rotates at the speed of 3/7 of the maximum speed of the blower, and at 26 ℃, the blower rotates at the speed of 4/7 of the maximum speed of the blower, At 27 ℃, the blower rotates at the speed of 5/7 of the maximum blower speed, and at 28 ℃, the blower rotates at the speed of 6/7 of the maximum blower speed, and at 29 ℃, the blower rotates at 100% of the maximum speed of the blower. Rotates.

The deviation temperature of the seven stages including the rising temperature and the falling temperature based on the room temperature is obtained above, but of course, the deviation speed of the seven stages is obtained according to the temperature rising based on the set temperature. It can be configured to be variable.

For example, if the room temperature is set to 23 ° C. and the deviation temperature is set to 5 ° C. (23 ° C. + 5 ° C.), and the room temperature is 23 ° C., the blower rotates in one stage (1/7 of the maximum speed), If the room temperature is 24 ℃, the blower rotates in two stages (2/7 of the maximum speed). If the room temperature is 25 ℃, the blower rotates in three stages (3/7 of the maximum speed), and the room temperature is 26 In case of ℃, blower is rotated in 4 stages (4/7 of maximum speed) .In case of room temperature is 27 ℃, blower is rotated in 5 stages (5/7 of maximum speed), and in case of room temperature is 28 ℃ Is rotated in 6 stages (7/7 of maximum speed), and blower rotates to 7 stages of maximum speed when room temperature exceeds 28 ℃.

The larger the temperature deviation, the faster the rotational speed of the blower is changed, and the smaller the temperature deviation is, the slower the rotational speed of the blower is.

In the above example, the blower is shifted in seven steps according to the temperature deviation, but in consideration of the deviation temperature, three to 15 steps are possible, of course. And in the summer, when the oxygen demand of the room 2a of the barn 2 is insufficient, the amount of oxygen supplied to the room is increased by setting the minimum rotational stage of the blower to be rotated in two to four stages and adjusting the minimum ventilation amount upward. This is mainly due to seasonal factors. That is, in summer, when the air temperature is high and the oxygen demand is high, the blowing amount and the oxygen amount are increased by increasing the rotation speed of the blower.

Low and high temperature alarms can be achieved using the temperature sensor 18 in the present invention. For example, when the low temperature alarm temperature is set to 20 ° C. through the setting unit 29, when the indoor temperature detected by the temperature sensor 18 is 20 ° C. or lower, a low temperature alarm is made to quickly cope with abnormal low temperatures.

In addition, when the high temperature alarm temperature is set to 40 ° C. through the setting unit 29, when the room temperature detected by the temperature sensor 18 is 40 ° C. or higher, a high temperature alarm is made to quickly cope with a fire or abnormal high temperature. .

In the case of the low temperature, if one window of the barn 2 is opened and the room temperature does not rise to the set room temperature but the temperature is lowered to the low temperature alarm temperature, or the blower blows down or overheats, the temperature sensor 16 (17) ( It is possible to respond quickly to abnormal temperature change by alarming when there is a sudden temperature change such as when the room temperature rises to the high temperature alarm temperature due to the error, failure or fire of 20).

In the present invention, if the temperature sensor 16 and the temperature sensor 17, 20 installed in the body 4 and the temperature sensor 17, 20 installed in the main body 4 detects the 75 ° C or more, the controller 13 is a power source of the electric heater 14 To prevent overheating by blocking the right.

The temperature sensors 16, 17, and 20 are heat transfer heaters 14 when the surface temperature of the vicinity of the heat transfer heater 14 and the body 4 rises to 75 ° C. or higher when a bimetal switch is operated at 75 ° C. or higher. Since the power supplied to the power supply is cut off, the third safety device prevents overheating of the main body 4 and damage or damage of parts.

In the present invention, clean air is always pleasantly harmonized is introduced into the barn (2) room (2a) and the ventilation is made, so that the indoor air in a comfortable state is always maintained. And the harmonious air is supplied evenly to the inside of the barn, and the air flow is evenly distributed so that the weak piglets can be kept warm.

In particular, in the case of temperature-sensitive pigs, the internal temperature of the barn is maintained in the range of 21 ℃ ~ 28 ℃ to improve the development (growth) of the livestock and improve feed intake is very helpful for breeding. And in the case of piglets (pig), more ideal development and growth can be expected by maintaining the temperature (26a ~ 28 ℃) of the house 2 (2) through the setting unit (S).

In the case of pigs, a large number of piglets are kept in a narrow space, and also maintain a predetermined temperature, and fresh air is supplied in a state where there is no change in temperature, and harmful gases generated in pigs are naturally exhausted quickly.

That is, since the interior 2a space of the barn 2 is provided with a gap communicating with the outside air, automatic exhaust is made by the air supply.

In the present invention, since the interval between the exhaust hole 3a is formed toward the end of the air supply duct 3 becomes narrower, the air supply is evenly distributed without any distinction between the inlet, middle and end portions of the air supply duct 3. .

Since the air supply duct 3 has different ventilation amounts according to breeding heads, the installation position and the number of the air supply ducts 3 are designed and installed to correspond thereto.

In addition, because the four seasons in Korea is distinct, the amount of ventilation required for livestock in each season is different, but heating is achieved by the electric heater, and the operation speed of the blower is appropriately controlled according to the temperature deviation. That is, 10% of the air supply is made in winter, but as long as a large amount of oxygen is required, the blower may be operated at a maximum of 100% in summer.

The present invention as described above is not limited to the present embodiment and the accompanying drawings, various substitutions, modifications and changes are possible within the scope without departing from the technical spirit of the present invention, which is usually in the art It is self-evident for those who have knowledge.

1 is a configuration diagram of an example of the present invention.

2 is a cross-sectional view of an example automatic ventilation system of the present invention.

3 is a circuit block diagram of an example of the present invention.

Figure 4: Flowchart of an example of the present invention

<Explanation of symbols for the main parts of the drawings>

(1)-automatic ventilation system (2)-house

(2a)-house indoors (3)-duct

(3a)-exhaust ball (4)-body

(5)-Inlet (6)-Outlet

(7)-Euro (8)-Insulated case

(9)-fan motor (10)-fixing member

(11)-rotary shaft (12)-blowing fan

(13)-Controller (14)-Electric Heater

(15)-Protection Net (16) (17) (18) (19) (20)-Temperature Sensor

(21)-Anion generator (21a)-High voltage generator

(22)-negative electrode (28)-control part

(29)-Settings (30)-Display

(31)-Motor driver (32)-Alarm department

Claims (3)

Inlet and flow paths and outlets that are sequentially formed in the main body, an insulating case installed in the flow path, a blower provided inside the insulating case, a plurality of heat transfer heaters provided between the blower and the outlet, and the inlet A temperature sensor installed at a main body adjacent to the protection net, the heat heater and detecting an overheat of the heat heater, and a plurality of temperature sensors respectively installed at one side and the other side of the body away from the heat heater to detect overheating of the body, respectively; Temperature sensor and temperature sensor and controller to control the rotational speed of the fan fan motor according to the detected deviation temperature between the room temperature and the set temperature. Ventilation system. The method according to claim 1; A barn automatic ventilation system comprising a negative electrode protruding into an insulating case (8) and a high voltage generator of an anion generator (21) to which the negative electrode is connected. The method according to claim 1 or 2; The controller consists of a keypad that inputs various data to the input of the control unit composed of the central processing unit, selects the operation status and operation mode, and sets the temperature setting and deviation temperature. A setting unit, a temperature sensor for sensing the temperature of the electric heater, a plurality of temperature sensors for detecting the temperature of the main body in a double manner, and a temperature for allowing the blower to be controlled in multiple stages by sensing the indoor temperature of the house. A sensor, a temperature sensor for sensing the indoor temperature of the house and controlling the electric heater, are connected to each other, and a display unit displaying a set value, a current value, an operating state, an alarm light, and an on / off of the fan motor. A motor driver for controlling the off and rotation speed, an electric heater for heating the inlet air, an anion generator for generating anion to purify the inlet air, In this case, the generated sound or light or sound and barn automatic ventilation system as claimed additional alarm emits a warning light is configured connections, respectively.

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