CN112781159A - Air-changing type air purifier - Google Patents

Air-changing type air purifier Download PDF

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Publication number
CN112781159A
CN112781159A CN201911315692.8A CN201911315692A CN112781159A CN 112781159 A CN112781159 A CN 112781159A CN 201911315692 A CN201911315692 A CN 201911315692A CN 112781159 A CN112781159 A CN 112781159A
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CN
China
Prior art keywords
fan
motor
valve
unit
shaft
Prior art date
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Granted
Application number
CN201911315692.8A
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Chinese (zh)
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CN112781159B (en
Inventor
金修京
崔效准
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
An Yi Er A Jsc
Original Assignee
An Yi Er A Jsc
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Filing date
Publication date
Application filed by An Yi Er A Jsc filed Critical An Yi Er A Jsc
Publication of CN112781159A publication Critical patent/CN112781159A/en
Application granted granted Critical
Publication of CN112781159B publication Critical patent/CN112781159B/en
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Anticipated expiration legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/007Ventilation with forced flow
    • F24F7/013Ventilation with forced flow using wall or window fans, displacing air through the wall or window
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32Responding to malfunctions or emergencies
    • F24F11/38Failure diagnosis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20Casings or covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/007Ventilation with forced flow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K37/00Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00Details or features not otherwise provided for
    • F24F2221/20Details or features not otherwise provided for mounted in or close to a window
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention discloses a ventilation type air purifier, which can easily and efficiently block the outside air from entering and can perform forced ventilation through program control. An air cleaner has an intake fan unit and an exhaust fan unit having the same structure and divided and mounted in a middle frame of the air cleaner, and a control module programmed to control the fan units, each of the fan units being provided with a fan assembly and a valve assembly to closely attach the valve assembly to the fan assembly, thereby blocking external air from entering through the fan units.

Description

Air-changing type air purifier
Technical Field
The present invention relates to a ventilation type air cleaner, and more particularly, to a ventilation type air cleaner capable of easily and efficiently blocking the entrance of outside air and performing forced ventilation by program control.
Background
Generally, if the circulation of air is not smooth in the indoor of a building, the air is polluted, and various dusts and microorganisms in the air thus polluted become causes of respiratory diseases and various allergies.
Therefore, although the indoor air is mainly ventilated through the window, in the case of the window ventilation, strong wind enters or external rain water, dust, or the like enters the room, and air containing fine dust including viruses or bacteria or soot directly enters the room, so that there is a possibility that the indoor air is deteriorated due to the ventilation.
In order to solve such problems, there have been many proposals for a ventilation device for windows and doors, which is provided with a ventilation device between a window frame and a window glass to achieve natural ventilation, and which is provided with an air passage penetrating in the front-rear direction, a ventilation adjustment opening for opening and closing the air passage to perform ventilation adjustment, a grill for blocking contaminants, rainwater, and the like included in outdoor air from entering a room and having a plurality of inlet holes, and the like.
An example of such a ventilation device for windows and doors is korean patent No. 2022881, which was filed by the applicant of the present invention.
According to this patent, as the suction fan is stopped and the wing of the opening and closing unit is closed, the intake of the external air is completely blocked, and in case it is judged that the indoor air is polluted or it is desired to forcibly discharge the indoor air, the exhaust fan is operated when the exhaust switch is pressed, and the valve closing the opening is opened by the exhaust force of the exhaust fan, thereby discharging the indoor air to the outside.
However, since the suction fan and the exhaust fan are operated in unison at one time, it is difficult to perform fine control by a program and forced ventilation cannot be set by a program.
And, since there is an independent opening and closing unit for blocking the entrance of the external air, there are disadvantages in that the structure is complicated and the manufacturing cost is increased.
Disclosure of Invention
Accordingly, an object of the present invention is to provide a ventilation type air cleaner in which an intake fan and an exhaust fan can be controlled individually.
Another object of the present invention is to provide a ventilation type air cleaner capable of performing forced ventilation by a program.
Another object of the present invention is to provide a ventilation type air cleaner having a simple structure for blocking the entrance of external air and capable of blocking the entrance with high efficiency.
The purpose is realized through a type of taking a breath air purifier, its characterized in that includes: the middle plate is fixed on the window frame; a rear body unit attached to the middle plate; and a front body unit coupled to the rear body unit, wherein the front body unit includes a middle frame and a front cover coupled to the middle frame, the middle frame is divided into an intake fan unit and an exhaust fan unit having the same structure, and a control module is provided to control the fan units by a program, and each of the fan units is provided with a fan assembly and a valve assembly to allow the valve assembly to be closely attached to the fan assembly, thereby blocking external air from entering through the fan units.
Preferably, the valve assembly comprises: a valve plate having a screw hole formed at the center thereof; a shaft screw bolt coupled to the screw hole of the valve plate and having a shaft boss protruded from the bottom thereof; a motor bracket slidably combined with the valve plate; a blank holder rotatably fixing the shaft screw to the motor bracket; and a motor unit mounted on the motor bracket and coupled to the shaft screw to rotate the shaft screw.
Preferably, the fan assembly includes a fan bracket and a fan installed inside the fan bracket to rotate, and the valve plate is closely attached to or spaced apart from the fan bracket by rotation of the shaft screw caused by rotation of the motor, thereby blocking external air from entering when the fan is stopped and allowing air sucked or discharged to pass therethrough when the fan is rotated.
Preferably, the motor unit includes: a stepper motor programmed by the control module; a gear body having a through hole formed in the center thereof and a ring gear provided along an edge thereof; a plurality of planetary gears that mesh with each other inside the gear main body and with the ring gear; and a coupling rotatably binding the planetary gears to each other, wherein a shaft protrusion into which the motor shaft is inserted is formed at a center of the coupling, and the shaft protrusion is coupled to the shaft boss of the shaft screw.
Preferably, a driving module is installed at the valve assembly, and the driving module opens and closes a valve, adjusts the speed of the fan, senses whether the valve is opened or closed, diagnoses a fault of the fan assembly, and transmits the result to the control module.
Preferably, the rear body unit includes a rear cover having a suction hole formed in a bottom surface thereof so as to be divided into a suction region and a discharge region with a partition wall formed therebetween, the suction region having a pre-filter and a composite filter stacked thereon, the middle frame being a single body, and having a coupling end portion protruding rearward along an edge thereof and coupled to the rear cover by interposing an auxiliary member, the auxiliary member including: an auxiliary member having an opening formed to penetrate the front and rear sides; a guide member inserted into the auxiliary member; and a spring elastically supporting the guide, wherein the coupling end is inserted into the opening of the auxiliary to subject the middle frame to an elastic restoring force of the spring through the guide.
According to the configuration, by applying the same structure to the suction fan unit and the exhaust fan unit, the structure for blocking the entry of the outside air including yellow sand, fine dust, volatile organic compounds, or the like is simple and easy to control.
Further, since the rotation of the stepping motor can be controlled by a program to open and close the valve, the intake of outside air can be effectively blocked, and forced ventilation can be performed with a set time.
Also, opening and closing of the valve, adjustment of the fan speed, adjustment of the opening degree of the valve, and the like may be easily performed by a program, and whether the valve is opened or closed or a failure diagnosis of the fan assembly may be periodically performed to transmit the result to the control module.
Drawings
Fig. 1 shows an external appearance of a ventilation type air cleaner of the present invention.
Fig. 2 is an exploded perspective view of the air cleaner.
Fig. 3 shows a middle frame.
Fig. 4 shows a fan unit.
Fig. 5 (a) and 5 (b) are exploded views respectively illustrating the valve assembly disassembled in different directions.
Fig. 6 shows a motor unit.
Fig. 7 (a) and 7 (b) show the operation of the fan unit, respectively.
Description of the symbols
411: valve washer 412: valve plate
413: screw hole 414: blank holder
415: shaft screw 416: shaft boss
417: the motor cover 418: drive module
419: motor bracket 419 a: guide projection
Detailed Description
Technical terms used in the present invention are used only for describing specific embodiments, and it should be noted that they are not intended to limit the present invention. Also, technical terms used in the present invention should be interpreted as meanings that are generally understood by those having ordinary knowledge in the technical field to which the present invention belongs, and should not be interpreted as an excessively generalized meaning or an excessively narrow meaning, as long as they are not particularly defined as other meanings in the present invention.
In addition, when the technical terms used in the present invention are wrong technical terms that do not accurately express the idea of the present invention, the technical terms should be replaced by technical terms that can be correctly understood by those skilled in the art. Also, general terms used in the present invention should be interpreted according to dictionary definitions or according to a context before and after, and should not be interpreted as an excessively narrow meaning.
The present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 shows an external appearance of a ventilation type air cleaner of the present invention, and fig. 2 is an exploded perspective view of the air cleaner.
The ventilation type air cleaner is provided at a gap formed between the window sash and the window frame, and after the middle plate 110 is fixed to the window frame, the rear body unit 300 is attached to the middle plate 110 and sealed with silicon rubber.
Then, the front body unit 200 is inserted into the rear body unit 300 and fixed, thereby completing the installation of the air cleaner.
As can be seen from fig. 2, the rear cover 310 constituting the rear body unit 300 has a suction hole formed in a bottom surface thereof, and a partition wall 312 is formed between the suction area and the discharge area, which are vertically divided.
A pre-filter 320 is installed at the air suction area so as to filter foreign materials included in the external air in advance, and a composite filter 340 is laminated thereon.
The composite filter 340 may be composed of a High Efficiency Particulate Air (HEPA) filter for filtering fine dust, a filter for removing harmful gas, and a filter for filtering viruses and bacteria, as described in the above-mentioned patent.
The front body unit 200 includes a middle frame 220 and a front cover 210 coupled thereto, and is coupled by the middle frame 220 being inserted into a rear cover 310.
The middle frame 220 is combined with the rear cover 310 by interposing an auxiliary assembly 330, and the auxiliary assembly 330 includes: an auxiliary 332 having an opening formed through the front and rear; a guide 333 inserted into the auxiliary 332; and a spring 334 elastically supporting the guide 333.
According to this structure, the auxiliary 332 is fixed to the rear cover 310 with screws after the guide 333 is inserted into the opening at the rear end of the auxiliary 332 and the spring 334 is inserted into the rear end of the guide 333. In this state, if the coupling end 222 protruding rearward along the edge of the middle frame 220 is inserted into the opening at the front end of the auxiliary 332 and the middle frame 220 and the rear cover 310 are assembled by screws, the coupling end 220 of the middle frame 220 comes into contact with the guide 333 and receives the elastic restoring force of the spring 334, and the middle frame 220 can be prevented from being shaken after the coupling.
Fig. 3 shows a middle frame.
The middle frame 220 is composed of a single body, and as described above, the coupling end 222 protrudes rearward.
The intake fan units 400 and 400 'and the exhaust fan unit 500 are separately mounted on the middle frame 220, and in the present embodiment, a pair of intake fan units 400 and 400' are mounted on the upper portion, and one exhaust fan unit 500 is mounted on the lower portion.
The suction fan units 400, 400' and the exhaust fan unit 500 are provided with the same structure, but since the opposite functions are performed, the positions of the fans are arranged opposite to each other.
The filter holder 230 is mounted to the middle frame 220 at the outer side of the exhaust fan unit 500 such that the filter holder 230 supports the lower end of the composite filter 340.
Further, a control module 250 is installed between the suction fan units 400 and 400', and a microprocessor storing a program for suction and exhaust is mounted on the control module 250 in the form of, for example, a PCB.
The intake fan units 400 and 400 'and the exhaust fan unit 500 of the present invention are equipped with a valve function so that the entrance of external air can be blocked, and the control module 250 controls the rotation of the motor by driving the driving module of the motor, as described below, thereby opening and closing the valves of the intake fan units 400 and 400' and the exhaust fan unit 500.
Fig. 4 shows a fan unit.
As described above, since the intake fan units 400 and 400' and the exhaust fan unit 500 have the same structure, they will be collectively described as the fan unit 400 hereinafter.
The fan unit 400 includes a fan assembly 430 and a valve assembly 410 coupled thereto, blocking the entrance of external air when a fan 432 of the fan assembly 430 is stopped, and allowing air sucked or discharged to pass therethrough when the fan 432 is rotated.
The fan assembly 430 includes a fan bracket 431 and a fan 432 installed inside the fan bracket 431 to rotate, as described below, by making a valve plate of the valve assembly 410 closely attached to the fan bracket 431 or distant from the fan bracket 431, thereby blocking inflow of external air when the fan 432 is stopped and allowing air sucked or discharged to pass through when the fan 432 rotates.
Fig. 5 (a) and 5 (b) are exploded views respectively for disassembling the valve assembly in different directions, and fig. 6 shows a motor unit.
The valve assembly 410 includes: a valve plate 412 having a screw hole 413 formed in the middle thereof; a shaft screw 415 bolt-coupled to a screw hole 413 of the valve plate 412 and having a shaft boss 416 protruded at the bottom; a motor bracket 419 slidably coupled with the valve plate 412; a blankholder 414 rotatably securing a shaft screw 415 to the motor housing 419; and a motor unit 420 coupled to the shaft screw 415 to rotate the shaft screw 415.
The valve plate 412 is slidably inserted into the guide protrusion 419a of the motor housing 419, where the valve plate 412 is closely adhered to the fan housing 431 of the fan unit 430 away from the motor housing 419 to block the entrance of the external air as the shaft screw 415 is rotated by the rotation of the motor unit 420, or the valve plate 412 is spaced apart from the fan housing 431 of the fan unit 430 close to the motor housing 419 to allow the external air to flow through the spaced apart distance.
A rubber valve gasket 411 is attached to a portion of the front surface of the valve plate 412, which is in contact with the fan bracket 431 of the fan unit 430, so that a gap is not formed therebetween.
A shaft boss 416 protrudes from a bottom surface of the shaft screw 415, so that the shaft screw 415 is rotated by inserting a shaft boss 425 coupled to a motor shaft of the motor 421, as described below.
A drive module 418 is attached to the front surface of the motor holder 419, and a motor cover 417 is coupled to the rear surface.
The drive module 418 communicates with the control module 250, opens and closes a valve, adjusts the speed of a fan, senses whether a valve is open or closed, diagnoses a fault in the fan assembly 430, and communicates the results to the control module 250.
Referring to fig. 6, the motor unit 420 includes a stepping motor 421 and a reduction unit including: a gear body 422 having a through hole formed in the center thereof and a ring gear provided along the edge thereof; a plurality of pinion gears 432 that mesh with each other and with the ring gear inside the gear main body 422; and a connection member 424 binding the planetary gears 423 to each other and to the motor shaft.
Here, a shaft boss 425 into which a motor shaft is inserted is formed at the center of the link 424, and the shaft boss 425 is coupled to the shaft boss 416 of the shaft screw 415.
The opening and closing operation of the valve assembly by the motor drive will be described below.
In the case where the control module 250 performs the air-drawing operation by rotating the fan 432 of the air-drawing fan unit 400 through a user operation or program control, the control module 250 commands the driving module 418 so that it drives the motor 421.
If the motor 421 rotates, the shaft boss 425 of the coupling 424 coupled to the motor shaft rotates to rotate the coupling 424, with the result that the rotation of the motor is decelerated while increasing torque (torque) by means of the planetary gears 423 engaged with each other and with the ring gear.
Then, while the shaft screw 415 coupled with the shaft boss 425 rotates, the valve plate 412 bolt-coupled with the shaft screw 415 moves along the guide boss 419a of the motor bracket 419 to be closely attached to the motor bracket 419, so that, as shown in fig. 7 (a), the valve plate 412 (a portion shown by hatching in fig. 7) and the fan bracket 431 of the fan assembly 430 are spaced apart to allow the external air sucked through the fan 432 to flow through the spaced-apart intervals as shown by arrows.
In contrast, if the fan 432 is stopped, the motor 421 is rotated in the opposite direction by the driving module 418, and as shown in fig. 7 (b), the valve plate 412 is closely attached to the fan bracket 431 of the fan unit 430 away from the motor bracket 419, thereby blocking the entrance of the external air.
As described above, by applying the same structure to the suction fan unit and the exhaust fan unit, the structure for blocking the entrance of the outside air including yellow sand, fine dust, or volatile organic compounds, etc. is simple and easy to control.
Further, since the stepping motor can be controlled to open and close the valve by programmed rotation, the intake of outside air can be efficiently blocked, and forced ventilation can be performed with a set time.
Further, opening and closing of the valve, adjustment of the fan speed, adjustment of the opening degree of the valve, and the like, which are realized by a program, can be easily performed, and whether the valve is opened or closed or a failure diagnosis of the fan assembly can be periodically performed to transmit the result to the control module.
Although the foregoing has been directed to embodiments of the present invention, it will be apparent to those skilled in the art that various changes may be made therein. Therefore, the scope of the claims of the present invention should not be construed as being limited to the above-described embodiments, but should be construed according to the scope of the claims.

Claims (6)

1. A ventilation type air purifier, comprising:
the middle plate is fixed on the window frame; a rear body unit attached to the middle plate; and a front body unit coupled with the rear body unit,
wherein the front body unit includes a middle frame and a front cover combined with the middle frame,
the middle frame is respectively divided and provided with an air suction fan unit and an air exhaust fan unit with the same structure, and is provided with a control module for controlling each fan unit by a program,
each fan unit is equipped with a fan assembly and a valve assembly that fits snugly to the fan assembly to block the ingress of outside air through each fan unit.
2. The ventilation type air cleaner of claim 1,
the valve assembly includes:
a valve plate having a screw hole formed at the center thereof;
a shaft screw bolt coupled to the screw hole of the valve plate and having a shaft boss protruded from the bottom thereof;
a motor bracket slidably combined with the valve plate;
a blank holder rotatably fixing the shaft screw to the motor bracket; and
and a motor unit mounted on the motor bracket and coupled to the shaft screw to rotate the shaft screw.
3. The ventilation type air cleaner of claim 2,
the fan assembly includes a fan bracket and a fan installed to rotate inside the fan bracket,
the valve plate is closely attached to or spaced apart from the fan bracket by the rotation of the shaft screw caused by the rotation of the motor, thereby blocking the entrance of external air when the fan is stopped and allowing the sucked or discharged air to pass through when the fan is rotated.
4. The ventilation type air cleaner of claim 2,
the motor unit includes:
a stepper motor programmed by the control module;
a gear body having a through hole formed in the center thereof and a ring gear provided along an edge thereof;
a plurality of planetary gears that mesh with each other inside the gear main body and with the ring gear; and
a link rotatably binding the planetary gears to each other,
wherein a shaft boss into which the motor shaft is inserted is formed at the center of the connection member, and the shaft boss is coupled to the shaft boss of the shaft screw.
5. The ventilation type air cleaner of claim 1,
a driving module is arranged on the valve component,
the drive module opens and closes a valve, adjusts fan speed, senses whether a valve is open or closed, diagnoses a fault in the fan assembly, and communicates the result to the control module.
6. The ventilation type air cleaner of claim 1,
the rear body unit includes a rear cover having a suction hole formed at a bottom surface thereof to be divided into a suction area and a discharge area with a partition wall formed therebetween,
a pre-filter and a composite filter are laminated in the air suction area,
the middle frame is a single body, and a combining end part protrudes backwards along the edge and is combined to the rear cover body by clamping an auxiliary component,
the auxiliary assembly includes: an auxiliary member having an opening formed to penetrate the front and rear sides; a guide member inserted into the auxiliary member; and a spring elastically supporting the guide,
wherein the coupling end is inserted into the opening of the auxiliary member to subject the middle frame to an elastic restoring force of the spring through the guide.
CN201911315692.8A 2019-11-07 2019-12-19 Air-changing type air purifier Active CN112781159B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020190142112A KR102279407B1 (en) 2019-11-07 2019-11-07 Ventilation typed air filtering apparatus
KR10-2019-0142112 2019-11-07

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CN112781159A true CN112781159A (en) 2021-05-11
CN112781159B CN112781159B (en) 2022-07-05

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102611532B1 (en) * 2021-07-19 2023-12-08 주식회사 엔이알 Ventilation typed air filtering apparatus
KR20230013427A (en) * 2021-07-19 2023-01-26 주식회사 엔이알 Ventilation typed air filtering apparatus

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