KR102200834B1 - Duct Applied with Energy Recovery Ventilator having Supply Air Hood Cap and Interior Fine Dust Auto-Cleaning Function - Google Patents

Abstract

Disclosed is a waste heat recovery type ventilation system with an air supply hood cap and interior fine dust auto-cleaning function, which comprises a housing (110), a heat exchanging device (120), a filter member (130), an exhaust air blower (140), an air supply blower (150), a first electric damper (160), a second electric damper (170), an auto-cleaning blower (180), and a control circuit unit (190). The waste heat recovery type ventilation system enables the auto-cleaning blower to be installed in an inlet flow passage to periodically perform an auto-cleaning mode through a bypass passage to the air supply hood cap when heat exchanging starts and ends to prevent blockage and corrosion due to dust, dead bodies of bugs, and foreign substances of excrement and easily perform replacement, maintenance and repair of the filter member regardless of left and right installation types.

Description

Waste Heat Recovery Ventilator having Supply Air Hood Cap and Interior Fine Dust Auto-Cleaning Function {Duct Applied with Energy Recovery Ventilator having Supply Air Hood Cap and Interior Fine Dust Auto-Cleaning Function}

In the present invention, an auto clean blower is installed in the inflow passage to prevent clogging and corrosion by foreign substances of dust, insect carcasses, and excrement by periodically performing the auto clean mode at the start and end of heat exchange through a bypass to the air supply hood cap. , Waste heat recovery ventilation system with air supply hood cap and internal fine dust auto-clean function that cleans fine dust of HEPA filter and pre-filter, and enables easy replacement and maintenance of filter members regardless of left and right mounting type. It is about.

In general, if the total heat exchanger is used for more than one year, the outdoor air supply system is blocked with feathers, insects, excrement, lint, dust, etc. due to the forced supply of the outside air, so that it does not perform substantial heat exchange, reducing power efficiency and preventing fresh air from entering the room. Although the internal cleaning and filter replacement are periodically performed, the external hood cap net cannot be cleaned, so fresh air cannot be introduced.

For example, due to the nature of insects' habitat from the total heat exchanger to the outer hood cap, they are excreted from the outer hood cap filter net or severe contamination occurs due to the accumulation of insect carcasses. Conventional total heat exchangers lose their original function if they are used for more than 1 year.

To solve this problem, a connection duct is made inside the total heat exchanger, and the dust on the air supply hood cap is blown out by periodically blowing air through the OA hood cap to prevent dust from getting out. It is required to introduce a method that makes it smooth.

On the other hand, the hood cap must be replaced regularly so that fresh air can flow in smoothly. This is ignored and only a formal hood cap is installed, and the actual construction site overlooked this problem in the first place and was constructed with a non-replaceable construction method. It is impossible to replace itself.

To solve this problem, even if you try to shake off various foreign substances including dust attached to the air supply hood cap filter net, the filter net is broken or damaged due to the sticking of dust and insect carcasses, so the entire hood cap must be replaced.

However, since it is impossible to replace due to a practical problem, a technology capable of improving the efficiency of the previously installed and constructed total heat exchanger is required by making it easy to replace the filter net and always inflow fresh air to secure this.

In addition, during actual construction at the site, the service section of the cover must be installed facing down, but there are cases of disregarding this, and when the construction location is installed with the next generation and one retaining wall in between, the left type and the right It should be divided into types and installed, but it is extremely rare to install them separately on site. After construction, contaminated air from the next generation is as it flows into the inlet (OA) of the air supply of another neighboring household with one retaining wall in between. There is a problem in that air is not introduced.

Korean Patent Publication No. 1841954 (Ventilation system with multi-functional total heat exchanger and control method thereof) Korean Registered Patent Publication No. 1965126 (Integrated ventilation system for wall-mounted air supply and exhaust having a function of removing fine dust and its control method)

The technical problem to be achieved by the idea of the present invention is to install an auto clean blower in the inflow passage and perform the auto clean mode periodically at the start and end of heat exchange through a bypass to the air supply hood cap to prevent dust, insect carcasses and foreign matter from excrement. It is to provide a waste heat recovery ventilation system equipped with an air supply hood cap and an internal fine dust auto-clean function that prevents clogging and corrosion caused by and enables easy replacement and maintenance of filter members regardless of left and right mounting type. .

In order to achieve the above object, the present invention is provided with a ventilating part inlet and an air supply part outlet on one side, a ventilation part outlet and a supply part inlet on the other side, and a discharge passage through which indoor air is discharged to the outside and outdoor air A housing having an inflow passage flowing into the room; A heat exchange element mounted inside the housing to heat exchange between indoor air and outdoor air; A filter member coupled to the heat exchange element and comprising a pre-filter and a HEPA filter selectively provided in the inlet passage and the outlet passage; An exhaust blower provided in an exhaust passage adjacent to an outlet of the ventilation unit to generate an exhaust flow; An air supply blower provided in an inflow passage adjacent to an outlet of the air supply part to generate an inflow flow; A first electric damper provided at the outlet of the ventilation unit to regulate indoor air discharge; A second electric damper provided at the inlet of the air supply unit to regulate the inflow of outdoor air; An auto-clean blower formed in the auto-clean space between the heat exchange element and the second electric damper and configured to blow air in the direction of the air supply hood cap provided at the air supply part through a bypass circuit that bypasses the air supply part inlet; And when an operation signal is applied, at the start and end of the heat exchange drive by the heat exchange element, the second electric damper is in a closed state for a predetermined period of time, and the autoclean blower is driven to prevent foreign matters attached to the filter member and the Containing, air supply hood cap and internal fine dust auto including; a control circuit unit providing an auto-clean mode to blow out foreign substances attached to the outer surface of the filter net inside the air supply hood cap to discharge and remove them to the outside. Provides a waste heat recovery ventilation system with a clean function.

The auto clean blower may be provided inside or outside the housing.

Here, the housing is composed of a main body and a cover, and a cover that can be opened and closed is formed on both sides of the main body and the cover in which the auto-clean space is formed, so that the filter member can be replaced by opening the cover. .

In addition, an insulating sheet is attached to the inside of the cover, and packings are formed at both ends of the partition wall forming the auto-clean space to seal the gap between the cover and the auto-clean space.

In addition, the packing may be formed in a U shape surrounding the partition wall.

In addition, it further comprises a humidity sensor for detecting the humidity inside the housing and a fine dust sensor for detecting the concentration of fine dust, and the control circuit unit, in the standby power mode, when detecting the humidity or fine dust concentration exceeding a reference value, the The auto clean blower can be operated for a certain period of time.

In addition, the filter network of the air supply hood cap is made of a conductor, and the control circuit unit may control the auto clean mode operation by detecting a change in resistance value according to the amount of dust attached to the filter network.

In addition, a sensor member for detecting an amount of dust attached to the filter net is provided inside the air supply hood cap, and the control circuit unit may operate the auto clean mode according to a dust amount signal value of the sensor member.

In addition, the inside of the air supply hood cap includes a pest access prevention member having an LED module that emits light in a band of 590 nm to 650 nm, or 590 nm to 620 nm, or 620 nm to 650 nm to avoid pests I can.

In addition, the pest access prevention member is provided on one side inside the air supply hood cap and is circuitly connected to the control circuit, and when the LED module is driven, the LED in the PWM control chip constituting the power supply device of the control circuit unit It may further include an ultrasonic generating member that transmits ultrasonic waves of 30 kHz to 50 kHz avoided by pests by using a switching signal generated when power is supplied by a switching method for driving the module.

In addition, a solar panel may be provided outside the air supply hood cap, and a charging control circuit unit for self-supplying battery power to the LED module and a rechargeable battery inside the air supply hood cap may be further included.

In addition, a venturi tube may be formed in the inner pipe of the air supply hood cap to maximize the effect of removing dust attached to the entire filter network of the air supply hood cap by accelerating the wind speed of the auto clean blower during the auto clean mode operation.

In addition, a cyclone generating member may further include a cyclone generating member on the inner circumferential surface of the air supply hood cap to generate the wind of the auto clean blower in a tornado shape and spray it to the filter net.

In addition, the air supply hood cap includes a connection part connected to the inlet of the air supply part, an outer flange part extended to the outer circumferential surface of the connection part and in close contact with the outer wall of the building, and formed on the inlet of the connection part and the inner circumferential surface of the outer flange part, so that the filter network The air supply hood cap consists of a seating portion to be seated, and a cover formed integrally or separate with the outer flange portion and formed with an external air inlet in the lateral direction, and the filter network is made of a synthetic resin or metal material having flexibility and elasticity. The outer circumferential edge may be in close contact with the inner circumferential surface of the cover to be supported by the seating portion after being inserted in a curved shape at the entrance and unfolding by an elastic force.

In addition, a ring-shaped sealing member made of a material selected from rubber or silicone or PVC having flexibility and elasticity may be further included on the outer peripheral surface of the filter net.

In addition, the filter net may be made of an aluminum material, and a slip coating layer may be formed on the outer surface or the entire outer surface to prevent adhesion of foreign substances.

In addition, in the step before the slip coating layer processing, the surface of the filter net and the corners of the grid may be subjected to round treatment by sanding or corrosion treatment, followed by slip coating processing.

In addition, the slip coating layer may be formed of any one coating layer selected from hard anodizing, titanium coating, diamond coating, or ceramic coating including a transparent silicon layer.

In addition, by accelerating the wind speed of the auto clean blower and blowing air to the venturi tube, it is possible to maximize the removal effect of dust attached to the entire filter net of the air supply hood cap during the auto clean mode operation.

In addition, wind from the auto-clean blowing fan may be generated in a tornado shape through the cyclone generating member to be sprayed into the filter net.

In addition, it may further include a communication capable smart device for remotely transmitting the auto-clean mode control signal to the control circuit unit.

According to the present invention, an auto clean blower is installed in the inflow passage and the auto clean mode is periodically performed at the start and end of heat exchange through a bypass to the air supply hood cap to prevent clogging and corrosion by foreign substances of dust, insect carcasses and excrement. By preventing it, there is an effect of improving heat exchange efficiency.

In addition, internal corrosion of the housing due to moisture or fine dust, or the occurrence of mold and bacteria or odor is suppressed, and there is an effect that it is possible to easily perform replacement and maintenance of the filter member regardless of the left and right mounting type.

Furthermore, it is possible to easily replace the filter net due to dust or corrosion without damaging the filter net, and it has the effect of improving durability to supply fresh outdoor air and use semi-permanently by keeping the air supply hood cap in a clean state. .

1 is a block diagram of a waste heat recovery type ventilation system having an air supply hood cap and an internal fine dust auto-clean function according to an embodiment of the present invention.
FIG. 2 is a plan view illustrating a waste heat recovery ventilation system having an air supply hood cap and an internal fine dust auto-clean function of FIG. 1.
3 is an illustration of the operation of the waste heat recovery type ventilation system having the air supply hood cap and the internal fine dust auto-clean function of FIG.
FIG. 4 is an illustration of the air supply hood cap of FIG. 2 and the air supply hood cap of the waste heat recovery type ventilation system having an auto-clean function of internal fine dust.
5 is an illustration of a filter network of a waste heat recovery ventilation system having an air supply hood cap and an internal fine dust auto-clean function of FIG. 2.
6 is a diagram illustrating a modified example of the auto clean blower of the waste heat recovery type ventilation system having the air supply hood cap and the internal fine dust auto clean function of FIG. 2.
7 is an illustration of a cover structure of a waste heat recovery ventilation system having an air supply hood cap and an internal fine dust auto-clean function of FIG. 1.

Hereinafter, embodiments of the present invention having the above-described features will be described in more detail with reference to the accompanying drawings.

1 to 7, the housing 110, the heat exchange element 120, and the filter member constituting a waste heat recovery type ventilation system having an air supply hood cap and an internal fine dust auto-clean function according to an embodiment of the present invention. Detailed description of 130, the exhaust blower 140, the supply air blower 150, the first electric damper 160, the second electric damper 170, the auto clean blower 180, and the control circuit unit 190 are described below. Same as

First, the housing 110 forms an exterior to be buried in the outer wall of the building, and as shown in FIGS. 1 and 2, a ventilation part inlet (RA) and an air supply part outlet (SA: supply air) are on one side. It is provided in the same direction, and the ventilator outlet (EA) and the air supply inlet (OA: outdoor air) are provided in the same direction on the other side, and communication is formed from the ventilator inlet (RA) to the ventilator outlet (EA). As a result, there is provided a discharge passage 111 through which indoor air is discharged to the outside and an inlet passage 112 through which the outdoor air is introduced into the indoor by communicating from the air supply inlet OA to the air supply outlet SA.

Next, the heat exchange element 120, as shown in Figs. 1 and 2, is mounted inside the housing 110 and communicates with the discharge passage 111 and the inlet passage 112, respectively, and flows in with the discharge passage 111 Indoor air and outdoor air are heat-exchanged by the intersection of air flowing through the flow path 112.

Next, the filter member 130, as shown in Figs. 1 and 2, is coupled to the heat exchange element 120 to be selectively provided in the inlet passage 112 and the discharge passage 111, a pre-filter 131 and Consisting of a hepa filter 132 to filter foreign substances, the pre-filter 131 protects the hepa filter 132 by filtering hair, insects, excrement, lint, hair, or large dust, and the hepa filter 132 ) Filters fine particles of fine dust.

Next, the exhaust blower 140, as shown in Figs. 1 and 2, is provided in the discharge passage 111 to be adjacent to the ventilation unit outlet (EA) is composed of a sirocco fan (sirocco fan) to generate the discharge flow Can be.

Next, as shown in FIGS. 1 and 2, the air supply blower 150 may be configured as a sirocco fan provided in the inflow passage 112 so as to be adjacent to the air supply outlet SA to generate inflow flow.

Next, the first motorized damper (MD: motorized damper) 160 is a control plate for air volume control, and as shown in Figs. 1 and 2, it is provided at the front end of the ventilation unit outlet (EA) to discharge indoor air by opening and closing operation. Crack down on

Next, the second electric damper 170 is a control plate for controlling the amount of air, and as shown in FIGS. 1 and 2, it is provided at the air supply inlet OA to prevent inflow of outdoor air to the air supply outlet SA by an opening and closing operation. Crack down.

Next, the auto-clean blower 180 is formed in the auto-clean space (A) between the heat exchange element 120 and the second electric damper 170, and is supplied through a bypass circuit (L) bypassing the air supply inlet (OA). By blowing air in the direction of the air supply hood cap 210 provided at the base inlet (OA), foreign substances attached to the pre-filter 131 and the HEPA filter 132 are forcibly discharged to the outside of the air supply hood cap 210 and removed, and air supply The inside of the filter member 130 and the air supply hood cap 210 may be kept clean by forcibly discharging dust, insect carcasses, and excrement attached to the filter net 211 inside the hood cap 210 to the outside.

Here, according to the installation environment, the auto-clean blower 180 is provided in the auto-clean space A inside the housing 110 as shown in FIG. 2, or outside the housing 110 as shown in FIG. Although provided, it may be formed in communication with the front surface of the housing 110 as shown in FIG. 6 (a), or may be formed in communication with the side surface of the housing 110 as shown in FIG. 6 (b).

On the other hand, as shown in Figure 7, the housing 110 is composed of a main body (110A) and a cover (110B), separated on both sides of the body (110A) and the cover (110B) in which the auto-clean space (A) is formed. Each of the openable and closed covers 113 may be formed, so that the filter member 130 may be replaced by opening the cover 113.

That is, by disposing the cover 113 on both sides of the main body 110A and the cover 110B, only the cover 113 is opened regardless of the left and right installation of the housing 110, so that the filter member 130 is easily replaced and the internal configuration is improved. Can be maintained.

For example, in general, the main body 110A is buried in a wall or ceiling and consists of a configuration that couples the cover 110B to the main body 110A, and is divided into a left-handed type and a right-handed type, and the left-handed or Regardless of the right mounting type, the filter member 130 may be replaced by opening any one of the covers 113 so as to be compatible with left and right mounting.

In addition, an insulating sheet 113a is attached to the inside of the cover 113, and packing 115 is formed at both ends of the partition wall 114 forming the auto clean space A, so that the cover 113 and the auto clean space A ), it is possible to smoothly form a vacuum condition capable of quickly discharging foreign substances and moisture to the outside of the air supply hood cap 210 when the auto clean blower 180 is driven.

In addition, the packing 115 may be formed of a sponge, rubber, or silicone member roll, and may be attached to the upper portion of the partition wall 114 by a double-sided tape or formed in a U-shape surrounding the partition wall 114 to be attached.

On the other hand, although not shown, further includes a humidity sensor (not shown) for sensing humidity inside the housing 110 and a fine dust sensor (not shown) for sensing the concentration of fine dust, and the control circuit unit 190 is In the power mode, when the humidity or fine dust concentration exceeding the reference value is detected, the auto clean blower 180 is driven for a certain period of time, so that the inside of the housing 110 due to moisture or fine dust is corroded or mold and bacteria are generated or It can suppress the occurrence of odor.

Next, the control circuit unit 190, as shown in Figure 3 (a), when the operation signal is applied, at the start and end of the heat exchange drive by the heat exchange element 120, for a certain period of time, for example, 3 minutes to For 10 minutes, the first electric damper 160 and the second electric damper 170 are controlled in a closed state to block the discharge passage 111 and the inlet passage 112, and drive the autoclean blower 180 to filter An auto-clean mode in which foreign substances attached to the member 130 and foreign substances attached to the outer surface of the filter net 211 inside the air supply hood cap 210 are blown in the direction of the air supply hood cap 210 and discharged to the outside. Do it periodically.

Meanwhile, the control circuit unit 190 controls the first electric damper 160 and the second electric damper 170 in an open state after performing the auto clean mode, as shown in FIG. 111) and the inflow passage 112 are unblocked, and outdoor air is supplied through the air supply inlet (OA), and indoor air is exhausted through the ventilation unit outlet (EA) to ventilate the indoor air by the heat exchanger element (120). And the outdoor air to heat exchange.

Here, the ventilation hood cap 220 having the same configuration as the air supply hood cap 210 is provided at the ventilation unit outlet EA.

That is, prior to heat exchange between internal and external air according to the application of the operation signal, after removing foreign substances attached to the filter member 130 and the air supply hood cap 210 through the auto clean blower 180, heat exchange is periodically performed. , It is possible to keep the filter member 130 and the air supply hood cap 210 clean at all times, and to improve heat exchange efficiency.

Here, the filter net 211 of the air supply hood cap 210 is made of a conductor, and the control circuit unit 190 detects a change in the resistance value according to the amount of dust attached to the filter net 211 to control the auto clean mode operation. However, when the resistance value of the preset reference value is exceeded, it is regarded as a state in which the amount of dust is excessively attached to the filter net 211, and the auto clean mode operation can be performed.

Alternatively, a sensor member 212 for detecting the amount of dust attached to the filter net 211 is provided inside one side of the air supply hood cap 210, and the control circuit unit 190 performs the auto clean mode according to the dust amount signal value of the sensor member. The sensor member 212 is composed of a sensor that detects a change in the size of an individual hole of the filter net 211 or a color change of the filter net 211 according to the amount of dust attached to the filter net 211. It is possible to perform auto clean mode operation by detecting whether or not a preset reference value is exceeded.

Or, a pest access prevention member provided with an LED module that emits light in a band of 590 nm to 650 nm, or 590 nm to 620 nm, or 620 nm to 650 nm, on one side inside the air supply hood cap 210 ( Including 213), it is possible to keep the inside of the air supply hood cap 210 clean by blocking access of pests to the inside of the air supply hood cap 210 at all times.

Here, the pest access prevention member 213 is provided on one side inside the air supply hood cap 210 and is circuitly connected to the control circuit unit 190, and constitutes a power supply device for the control circuit unit 190 when driving the LED module. The PWM control chip further includes an ultrasonic generator 214 that transmits ultrasonic waves of 30 kHz to 50 kHz avoided by pests by using a switching signal generated when power is supplied by a switching method for driving the LED module. , It is also possible to keep the inside of the air supply hood cap 210 clean by transmitting ultrasonic waves in conjunction with the light output to block access of pests to the inside of the air supply hood cap 210 at all times.

On the other hand, a solar panel (not shown) is provided outside the air supply hood cap 210, and a charge control circuit unit (not shown) that self-supplies battery power with a rechargeable battery (not shown) and an LED module inside the air supply hood cap 210 ), it is possible to drive the sensor member 212, the pest access prevention member 213, and the ultrasonic generating member 214 without external power supply.

In addition, the air supply hood cap 210 is in the inner pipe of the air supply hood cap 210 by accelerating the wind speed of the auto clean blower 180 when operating in the auto clean mode to maximize the removal effect of dust attached to the entire filter net 211 of the air supply hood cap 210 A cyclone generating member (not shown) that generates a Venturi tube (not shown) or generates the wind of the auto clean blower 180 in a tornado form on the inner circumferential surface of the air supply hood cap 210 and sprays it to the filter net 211 (not shown) Poetry) may be further included.

Referring to FIG. 4, the air supply hood cap 210 includes a connection part 210a connected to an air supply inlet OA, an outer flange part 210b extending to the outer circumferential surface of the connection part 210a and in close contact with the outer wall of the building, It is formed on the inner circumferential surface of the connection part 210a and the outer flange part 210b, and is composed of a seating part (not shown) on which the filter net 211 is seated, and is made integrally or separate with the outer flange part 210b, and is formed in a lateral direction. It includes a cover (210c) in which the outside air inlet (210c-1) is formed.

Here, the filter net 211 is made of a synthetic resin or metal material having flexibility and elasticity, and the volume is reduced and inserted in a curved shape at the entrance of the air supply hood cap 210 and then spread by elastic force, and then the filter net ( The outer circumferential edge of 211) is in close contact with the inner circumferential surface of the cover 210c and supported on the seating portion, and the outer circumferential surface of the filter net 211 is a ring-shaped sealing member made of a material selected from rubber, silicone or PVC having flexibility and elasticity. Si), the filter net 211 can be easily mounted on the air supply hood cap 210, and can be easily replaced by separating in the reverse order.

Alternatively, as shown in FIG. 5, the outer rim 211b of the wire 211a constituting the grid eye of the filter is made of plastic or silicon, and is coupled to the socket inside the air supply hood cap 210 to be fixed. I can.

On the other hand, the filter net 211 is made of aluminum, and a slip coating layer (not shown) to prevent foreign matter adhesion is formed on the outer surface or the entire outer surface of the wire 211a, so that foreign matter of fine dust is not easily attached to the filter. It is also possible to prevent contamination of the net 211 in advance.

On the other hand, in the step before the slip coating layer processing, the surface of the filter net 211 and the corners of the grid are sanded or corroded to be rounded and then subjected to slip coating, thereby minimizing dust adhesion and forming the slip coating uniformly. .

Here, the slip coating layer may be formed of any one coating layer selected from hard anodizing, titanium coating, diamond coating, or ceramic coating including a transparent silicon layer.

In addition, the filter network 211 of the air supply hood cap 210 is interlocked with the exhaust fan 140 or by the air supply fan 150 alone, by accelerating the wind speed of the air supply fan 150 and blowing the air through the venturi tube. ) It is possible to maximize the removal effect of dust attached to the whole, and the wind of the supply air blower 150 may be generated in a tornado shape through a cyclone generating member to be sprayed to the filter net 211.

In addition, the control circuit unit 190 may be installed adjacent to the boiler controller (not shown), further comprising a communication capable smart device 300 for remotely transmitting an auto-clean mode control signal to the control circuit unit 190, smart It is also possible to monitor whether the ventilation system is operated or whether the auto clean mode is operated through the device 300, and control the control circuit unit 190 from a remote location even when going out.

Therefore, by the configuration of the waste heat recovery type ventilation system with the air supply hood cap and the internal fine dust auto-clean function as described above, an auto clean blower is installed in the inflow passage and the heat exchange starts and ends through a bypass to the air supply hood cap. The auto-clean mode is performed periodically to prevent clogging and corrosion by foreign substances of dust, insect carcasses, and excrement to improve heat exchange efficiency, and to prevent internal corrosion of the housing due to moisture or fine dust, mold and bacteria generation, or odor generation. It makes it easy to replace and maintain the filter member regardless of the left and right mounting type, make it easy to replace the filter net due to dust or corrosion without damaging the filter net, and keep the air supply hood cap in a clean condition. It can improve durability to supply fresh outdoor air and use it semi-permanently.

The embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all the technical spirit of the present invention, so various equivalents that can replace them at the time of the present application It should be understood that there may be water and variations.

110: housing 111: discharge passage
112: inflow passage 113: cover
113a: insulation sheet 114: bulkhead
115: packing 120: heat exchange element
130: filter member 131: pre-filter
132: HEPA filter 140: exhaust blower
150: supply air blower 160: first electric damper
170: second electric damper 180: auto clean blower
A: Auto clean space 190: control circuit part
210: air supply hood cap 211: filter net
211a: wire 211b: outer rim
212: sensor member 213: pest access prevention member
214: ultrasonic generating member 220: ventilation hood cap
300: smart device

Claims (21)

A housing having a ventilating part inlet and an air supplying part outlet on one side, a ventilating part outlet and a supplying part inlet on the other side, and having an exhaust channel through which indoor air is discharged to the outside and an inlet channel through which outdoor air is introduced into the room; A heat exchange element mounted inside the housing to heat exchange between indoor air and outdoor air; A filter member coupled to the heat exchange element and configured of a pre-filter and a HEPA filter selectively provided in the inlet passage and the outlet passage; An exhaust blower provided in the exhaust passage adjacent to the outlet of the ventilation unit to generate exhaust flow; An air supply blower provided in the inflow passage so as to be adjacent to the air supply outlet outlet to generate inflow flow; A first electric damper provided at the outlet of the ventilation unit to regulate indoor air discharge; A second electric damper provided at the inlet of the air supply unit to regulate the inflow of outdoor air; An auto-clean blower formed in the auto-clean space between the heat exchange element and the second electric damper and configured to blow air in the direction of the air supply hood cap provided at the air supply part through a bypass circuit that bypasses the air supply part inlet; And when an operation signal is applied, at the start and end of the heat exchange drive by the heat exchange element, the second electric damper is in a closed state for a predetermined period of time, and the autoclean blower is driven to prevent foreign matters attached to the filter member and the Including; a control circuit unit for periodically performing an auto-clean mode in which foreign substances adhering to the outer surface of the filter net inside the air supply hood cap are blown in the direction of the air supply hood cap, discharged to the outside, and removed.
The housing is composed of a main body and a cover, and separate open/closeable covers are formed on both sides of the main body and the cover in which the auto-clean space is formed, and the cover is opened to replace the filter member,
Insulation sheets are attached to the inside of the cover, and packings are formed at both ends of the partition wall forming the auto clean space to seal between the cover and the auto clean space,
The packing is formed in a U-shape surrounding the partition wall,
A sensor member for detecting an amount of dust attached to the filter net is provided at one side inside the air supply hood cap, and the control circuit unit operates an auto clean mode according to a dust amount signal value of the sensor member,
The sensor member is composed of a sensor that detects a change in the size of an individual hole of the filter net or a change in color of the filter net according to the amount of dust attached to the filter net, and detects whether the amount of dust exceeds a preset reference value to operate the auto-clean mode. Waste heat recovery ventilation system with air supply hood cap and internal fine dust auto-clean function.
The method of claim 1,
The auto-clean blower is provided inside or outside the housing, a waste heat recovery ventilation system having an air supply hood cap and an internal fine dust auto-clean function.
delete delete delete The method of claim 1,
Further comprising a humidity sensor for detecting the humidity inside the housing and a fine dust sensor for detecting a fine dust concentration,
The control circuit unit, in the standby power mode, characterized in that when detecting a humidity or fine dust concentration exceeding a reference value for a certain period of time, characterized in that the air supply hood cap and waste heat with an internal fine dust auto clean function Recovery ventilation system.
The method of claim 1,
The filter network of the air supply hood cap is made of a conductor, and the control circuit unit senses a change in resistance value according to the amount of dust attached to the filter mesh to control the auto clean mode operation. Waste heat recovery ventilation system with dust auto clean function.
delete The method of claim 1,
It characterized in that it comprises a pest access prevention member having an LED module emitting light in a band of 590nm to 650nm, or 590nm to 620nm, or 620nm to 650nm to avoid pests on one side inside the air supply hood cap Waste heat recovery ventilation system with air supply hood cap and internal fine dust auto clean function.
The method of claim 9,
The pest access prevention member is provided on one side inside the air supply hood cap and is circuitly connected to the control circuit, and when the LED module is driven, the LED module in the PWM control chip constituting the power supply device of the control circuit unit The air supply hood cap and the inner fine particles, characterized in that it further comprises an ultrasonic generator that transmits ultrasonic waves of 30 kHz to 50 kHz avoided by pests by using a switching signal generated when power is supplied by a switching method for driving. Waste heat recovery ventilation system with dust auto clean function.
The method of claim 9,
A solar panel is provided outside the air supply hood cap, and the air supply hood cap further comprises a charging control circuit for self-supplying battery power to the rechargeable battery and the LED module, and inside the air supply hood cap. Waste heat recovery ventilation system with auto clean function.
The method of claim 1,
In the air supply hood cap inner conduit, a venturi tube is formed to maximize the effect of removing dust attached to the entire filter net of the air supply hood cap by accelerating the wind speed of the auto clean blower during the auto clean mode operation. Waste heat recovery ventilation system with hood cap and auto clean function of internal fine dust.
The method of claim 1,
The air supply hood cap inner circumferential surface further comprises a cyclone generating member for generating the wind of the auto-clean blower in a tornado shape and spraying the air into the filter net, the air supply hood cap and waste heat having an auto-clean function of internal fine dust Recovery ventilation system.
The method of claim 1,
The air supply hood cap includes a connection part connected to the inlet of the air supply part, an outer flange part extended to the outer circumferential surface of the connection part and in close contact with the outer wall of the building, and formed on the inlet of the connection part and the inner circumferential surface of the outer flange part to seat the filter net. Consisting of a seating portion, comprising a cover formed integrally or separate with the outer flange portion and formed with an external air inlet in the lateral direction,
The filter net is made of synthetic resin or metal material having flexibility and elasticity, and is inserted into the air supply hood cap in a curved shape, and then unfolded by an elastic force, and the outer circumferential edge is in close contact with the inner circumferential surface of the cover to support the seating part. A waste heat recovery type ventilation system with an air supply hood cap and an auto-clean function of internal fine dust, characterized in that it is.
The method of claim 14,
The filter net outer circumferential surface further comprises a ring-shaped sealing member made of a material selected from rubber or silicone or PVC having flexibility and elasticity, and a waste heat recovery type having an auto-clean function of air supply hood and internal fine dust Ventilation system.
The method of claim 1,
The filter net is made of an aluminum material, and a slip coating layer is formed on the outer surface or the entire outer surface to prevent adhesion of foreign substances, and a waste heat recovery ventilation system having an auto-clean function of air supply hood cap and internal fine dust.
The method of claim 16,
In the step before the slip coating layer processing, the surface of the filter net and the corners of the lattice are sanded or corroded to be rounded, and then slip coating is performed.The air supply hood cap and waste heat recovery with an auto-clean function of internal fine dust Type ventilation system.
The method of claim 16,
The slip coating layer is made of any one coating layer selected from hard anodizing, titanium coating, diamond coating, or ceramic coating including a transparent silicon layer, characterized in that the air supply hood cap and waste heat recovery type ventilation with an auto-clean function of internal fine dust system.
The method of claim 12,
By accelerating the wind speed of the auto clean blower and blowing air to the venturi tube, the air supply hood cap and the internal fine particles are characterized in that maximizing the removal effect of dust attached to the entire filter net of the air supply hood cap when the auto clean mode is operated. Waste heat recovery ventilation system with dust auto clean function.
The method of claim 13,
A waste heat recovery type ventilation system having an auto-clean function of air supply hood cap and internal fine dust, characterized in that the wind of the auto-clean blower is generated in a tornado shape through the cyclone generating member and sprayed to the filter net.
The method of claim 1,
A waste heat recovery type ventilation system having an air supply hood cap and an internal fine dust auto-clean function, further comprising a smart device capable of remotely transmitting an auto clean mode control signal to the control circuit unit.

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