CN115200139A - Indoor air purification device based on MEMS formaldehyde sensor - Google Patents

Indoor air purification device based on MEMS formaldehyde sensor Download PDF

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Publication number
CN115200139A
CN115200139A CN202210883262.1A CN202210883262A CN115200139A CN 115200139 A CN115200139 A CN 115200139A CN 202210883262 A CN202210883262 A CN 202210883262A CN 115200139 A CN115200139 A CN 115200139A
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China
Prior art keywords
air
filter
cylinder
shells
mems
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CN202210883262.1A
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Chinese (zh)
Inventor
朱建明
贾瑞琴
卜华生
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Shenzhen Tianditong Electronics Co ltd
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Shenzhen Tianditong Electronics Co ltd
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Priority to CN202210883262.1A priority Critical patent/CN115200139A/en
Publication of CN115200139A publication Critical patent/CN115200139A/en
Pending legal-status Critical Current

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    • 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
    • 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
    • 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
    • F24F8/15Treatment, 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 by chemical means
    • 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
    • F24F8/15Treatment, 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 by chemical means
    • F24F8/158Treatment, 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 by chemical means using active carbon
    • 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
    • F24F8/95Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying specially adapted for specific purposes

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention discloses an indoor air purification device based on an MEMS formaldehyde sensor, which comprises a communicating pipe, an air pump, a purification assembly, a dust removal device and an air inlet box, wherein the air pump is installed on the communicating pipe in a penetrating mode, the air inlet end of the communicating pipe is communicated with the dust removal device, the air outlet end of the communicating pipe is communicated with the purification assembly, the dust removal device is used for collecting dust in filtered air, and the air inlet end of the dust removal device is communicated with the air inlet box. The invention overcomes the problems that the existing indoor air purification can not collect the dust generated in the air purification process, so that the dust is easy to block the purifier, and the problems of single filtering mode and poor removing effect are solved when the formaldehyde is removed.

Description

Indoor air purification device based on MEMS formaldehyde sensor
Technical Field
The invention relates to the technical field of indoor air purification equipment, in particular to an indoor air purification device based on an MEMS formaldehyde sensor.
Background
The formaldehyde is a colorless and flammable chemical substance, has reducing and pungent smells, can influence immune system reaction when a human body is exposed to the formaldehyde, is a carcinogen of human beings, can cause leukemia, lymphoma and nasopharyngeal carcinoma, can cause very large stimulation to the nose, eyes and throat of the human body if the exposure of the formaldehyde exceeds an allowable exposure limit, plays an important role in promoting the detection of gases with lower concentration for the human body and the guarantee of the safety of daily work and living environment, integrates a semiconductor metal oxide gas-sensitive material and a micro-heater based on MEMS, provides possibility for realizing the requirements of miniaturization and low power consumption of gas sensors for the construction of Internet of things and smart cities, and has important research significance for realizing wafer-level production of low-power consumption micro gas sensors with high consistency.
A portable indoor air purifier is disclosed in the Chinese patent with the publication number of CN208238054U, including base and the rotation post of setting at the base top, be connected with the clarifier shell on the rotation post, clarifier shell front surface sets up the air inlet mesh, the inside of clarifier shell is provided with the inner chamber, clarifier shell top is equipped with folding handle, can make the clarifier shell realize the free rotation through rotating the post, can fold the handle simultaneously and pack up, and then the transportation of the air purifier of being convenient for, the convenience has effectively been improved.
But the dust that foretell indoor air purification can't produce among the air purification process is collected, and then leads to the condition of dust jam clarifier to take place easily, and the filtration mode is comparatively single when getting rid of formaldehyde simultaneously, and it is not good to get rid of the effect.
Disclosure of Invention
The invention aims to provide an indoor air purification device based on an MEMS formaldehyde sensor, aiming at improving the problems.
The invention is realized by the following steps:
the utility model provides an indoor air purification device based on MEMS formaldehyde sensor, includes communicating pipe, air pump, purification subassembly, dust collector and inlet box, link up on communicating pipe and install the air pump, the inlet end intercommunication of communicating pipe has dust collector, and the end intercommunication of giving vent to anger of communicating pipe has the purification subassembly, and dust collector is arranged in collecting the dust in the filtered air, and dust collector's inlet end intercommunication has the inlet box.
Further, purify the subassembly including purifying a section of thick bamboo, filtering component and screw cap, wherein the bottom of purifying a section of thick bamboo runs through the setting, and the top of purifying a section of thick bamboo and the end of giving vent to anger of communicating pipe run through fixed intercommunication, purify the interior circumference of a section of thick bamboo and go up the vertical internal thread of having seted up, and purify the inside horizontal screw thread of a section of thick bamboo and install filtering component, purify the bottom screw thread of a section of thick bamboo and install the screw cap, and the through connection has exhaust nozzle on the screw cap.
Furthermore, the filter component comprises a threaded support plate, an upper filter cylinder and a lower filter cylinder, wherein the threaded support plate is in threaded assembly connection with the purifying cylinder, a plurality of threaded cylinders uniformly and vertically penetrate through the threaded support plate, the upper end of each threaded cylinder is in assembly connection with the upper filter cylinder, and the lower end of each threaded cylinder is in assembly connection with the lower filter cylinder.
Furthermore, the one end of straining a section of thick bamboo and straining down on last all runs through the setting, and goes up to strain a section of thick bamboo and strain the other end of a section of thick bamboo down and seted up a plurality of gas pockets, goes up to strain a section of thick bamboo and strains the internal thread that one side that is close to the open end on the inner circumference of a section of thick bamboo down and set up a cooperation screw thread section of thick bamboo, and goes up to strain a section of thick bamboo and strain down and pack in the section of thick bamboo respectively and have activated carbon piece and Rui stone down.
Further, dust collector includes two card frames, two card shells and dust removal subassembly, and wherein two card frame equipment cooperation are connected, and all run through on the terminal surface about two card frames and seted up logical groove, and the inside of two card frames is assembled and is pegged graft and have two card shells, and the inside of two card shells is provided with the dust removal subassembly.
Further, two card shell cross sections are the C type, and the equal level in outside terminal surface middle part of two card shells is fixed with the extension board, and equal vertical being fixed with the spring on the upper and lower terminal surface of extension board, and the both ends of spring are fixed respectively on the upper and lower terminal surface of two inside card frames, are fixed with the plectrum on the extension board of two card shells, are fixed with the motor on the card frame, and rotate the output of motor and install the kicker, are fixed with the elastic sheet of multi-disc cooperation kicker on the kicker.
Further, the dust removal subassembly includes that two cross sections are C type net shell and strain cotton piece, wherein two net shell side end face openings set up, and fixed connection is assembled to two net shells, the vertical polylith riser that is fixed with on the outer terminal surface of two net shells, and the vertical grafting in outside of two net shells has strain cotton piece, one of them both ends of two net shells are provided with pivot and air inlet duct respectively, and one of them pivot of two net shells and air inlet duct rotate the both ends setting that runs through two card shells through the bearing respectively, air inlet duct and the box intercommunication that admits air.
Furthermore, one of the two clamping shells penetrates through and is provided with an air outlet, the air outlet is fixedly connected with an air inlet end of a communicating pipe, a rotating motor is vertically fixed to the top end of one of the two clamping shells, the output end of the rotating motor is connected with a driving gear, a driven gear is fixed to a rotating shaft on the top end of one of the two net shells, and the driven gear is meshed with the driving gear.
Further, dust collector includes that the bottom surface runs through the filter cartridge that sets up and the collection box that the top surface runs through the setting, wherein equal level is fixed with the screw hole board on the opening terminal surface of filter cartridge and collection box, and the screw hole board on filter cartridge and the collection box passes through bolt equipment and connects, a terminal surface bottom through connection of filter cartridge has the intake pipe, and the intake pipe is fixed with the box intercommunication that admits air, the vertical gas outlet that runs through of top surface opposite side of filter cartridge is fixed with, and the gas outlet of filter cartridge is fixed with the inlet end intercommunication of communicating pipe.
Further, the inside of filter box transversely is vertically fixed with baffle, net piece and filter cloth from the intake pipe in proper order towards the gas outlet, and logical groove has been seted up with filter box's top surface to the top of baffle, and the net piece is provided with the polylith, and the net piece of polylith reduces towards gas outlet direction aperture along the intake pipe in proper order, has a plurality of frames of inserting along transversely being fixed with on filter box's the inside bottom surface, and a plurality of frames of inserting are pegged graft in the bottom of baffle, net piece and filter cloth respectively.
Compared with the prior art, the invention has the beneficial effects that: the invention
(1) When the device is used, an air pump on the communicating pipe drives indoor air to enter from the air inlet box and guide the air into the dust removal device, the air enters through the air inlet cylinder at the bottom end of the dust removal component, dust in the air is filtered by the net shell and the filter cotton block, the dust is removed, the air enters the clamping shell, then the air in the clamping shell enters the communicating pipe and is guided into the purification component, the air enters the purification cylinder, and the air is discharged after being used for adsorbing formaldehyde in the air through the active carbon blocks and Rui stone in the upper filter cylinder and the lower filter cylinder in the filter component;
(2) When the air purifier is used, an air pump on the communicating pipe drives indoor air to enter from the air inlet box and guide the air into the dust removing device, the air is filtered by a baffle plate, a net sheet and filter cloth in the filter box to remove dust, the dust falls into the collecting box, then the air in the filter box enters the communicating pipe and is guided into the purifying component, the air enters the purifying cylinder, and is exhausted after being used for adsorbing formaldehyde in the air through an active carbon block and Rui stone in an upper filter cylinder and a lower filter cylinder in the purifying component;
(3) The purifying assembly comprises a purifying cylinder, a filtering assembly and a threaded cover, wherein the bottom end of the purifying cylinder is arranged in a penetrating mode, the top end of the purifying cylinder is fixedly communicated with the air outlet end of the communicating pipe in a penetrating mode, air is guided into the purifying cylinder for purification treatment, an inner circumferential surface of the purifying cylinder is vertically provided with an inner thread, the filtering assembly is installed on an inner horizontal thread of the purifying cylinder, the threaded cover is installed at the bottom end of the purifying cylinder in a threaded mode, the threaded cover is cylindrical, an outer thread matched with the inner thread of the purifying cylinder is arranged on the outer circumference of the threaded cover, assembly and connection are facilitated, and an exhaust nozzle is connected to the threaded cover in a penetrating mode and used for exhausting purified air;
(4) The filter component comprises a threaded support plate, an upper filter cylinder and a lower filter cylinder, wherein the threaded support plate is provided with an external thread matched with an internal thread of a purification cylinder on the cylindrical outer circumference, the threaded support plate is connected with the purification cylinder in a threaded assembling way, the assembly and the connection are convenient, the later-stage disassembly and the replacement of the purification filler are carried out, a plurality of threaded cylinders are uniformly and vertically penetrated and fixed on the threaded support plate, the external thread is arranged outside the threaded cylinders, the upper end of the plurality of threaded cylinders is connected with the upper filter cylinder, and the lower end of the plurality of threaded cylinders is connected with the lower filter cylinder. The one end of straining a section of thick bamboo and straining down on last all runs through the setting, and goes up the other end of straining a section of thick bamboo and straining down and has seted up a plurality of gas pockets for support inside purification piece when the air guide, go up the internal thread that the screw thread section of thick bamboo was seted up to one side that is close to the open end on the interior circumference of straining a section of thick bamboo and straining down, and it has active carbon piece and rui stone to fill respectively in the section of thick bamboo of straining a section of thick bamboo and straining down, active carbon piece and rui stone are arranged in the adsorbed air formaldehyde.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic view showing the overall structure of a first embodiment of an indoor air purification apparatus based on a MEMS formaldehyde sensor;
FIG. 2 is a schematic view showing an exploded structure of the first embodiment in an indoor air purification apparatus based on a MEMS formaldehyde sensor;
FIG. 3 is an exploded view of a dust removing device in a first embodiment of an indoor air purifying device based on an MEMS formaldehyde sensor;
FIG. 4 is a schematic exploded view of a first embodiment of a card case of an indoor air cleaning device based on MEMS formaldehyde sensor;
FIG. 5 is an exploded view of a dust removing unit in a first embodiment of an indoor air cleaning device based on an MEMS formaldehyde sensor;
FIG. 6 is an exploded view of a cleaning component of an embodiment of an indoor air cleaning device based on a MEMS formaldehyde sensor;
FIG. 7 is an exploded view of a filter assembly in an embodiment of a MEMS formaldehyde sensor based indoor air purification device;
FIG. 8 is a schematic view showing the overall structure of a dust removing device in a second embodiment of an indoor air cleaning device based on an MEMS formaldehyde sensor;
FIG. 9 is a schematic view showing an overall exploded structure of a dust removing device in a second embodiment of an indoor air cleaning device based on an MEMS formaldehyde sensor;
FIG. 10 is an exploded view of a dust removing device in a second embodiment of an indoor air cleaning device based on an MEMS formaldehyde sensor;
fig. 11 is an exploded view of a cartridge in a second embodiment of an indoor air cleaning device based on a MEMS formaldehyde sensor.
In the figure: 1. a communicating pipe; 2. an air pump; 3. a purification assembly; 31. a purification cartridge; 32. a filter assembly; 321. a threaded support plate; 322. a threaded barrel; 323. an upper filter cartridge; 324. an activated carbon block; 325. a lower filter cartridge; 326. rui stone; 33. a threaded cap; 41. clamping a frame; 411. assembling the sheet; 412. a motor; 413. shifting a roller; 42. clamping a shell; 421. a support plate; 422. a spring; 423. a shifting sheet; 424. an air outlet; 425. rotating the motor; 426. a driving gear; 43. a dust removal assembly; 431. a reticulated shell; 432. a vertical plate; 433. an air inlet cylinder; 434. filtering cotton blocks; 435. a driven gear; 51. a filter box; 52. an air inlet pipe; 53. a collection box; 531. inserting a frame; 54. a baffle plate; 55. a mesh sheet; 56. filtering cloth; 6. an air inlet box.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1:
referring to fig. 1, 2, 3, 4, 5, 6 and 7, an indoor air purification device based on an MEMS formaldehyde sensor is provided, the MEMS formaldehyde sensor is installed indoors to monitor and display formaldehyde content, and then the purification device is controlled to work, and the indoor air purification device comprises a communication pipe 1, an air pump 2, a purification component 3, a dust removal device and an air inlet box 6, the air pump 2 is installed on the communication pipe 1 in a penetrating manner, an air inlet end of the communication pipe 1 is communicated with the dust removal device, an air outlet end of the communication pipe 1 is communicated with the purification component 3, the dust removal device is used for collecting dust in filtered air, and the air inlet end of the dust removal device is communicated with the air inlet box 6.
Referring to fig. 6 and 7, the purifying assembly 3 includes a purifying cylinder 31, a filtering assembly 32 and a screw cap 33, wherein the bottom end of the purifying cylinder 31 is disposed in a penetrating manner, the top end of the purifying cylinder 31 is fixedly communicated with the air outlet end of the communicating pipe 1 in a penetrating manner, so as to introduce air into the purifying cylinder 31 for purification treatment, an inner circumferential surface of the purifying cylinder 31 is vertically provided with an inner thread, the filtering assembly 32 is installed on an inner horizontal thread of the purifying cylinder 31, the screw cap 33 is installed on a bottom end thread of the purifying cylinder 31, the screw cap 33 is cylindrical, and an outer circumference of the screw cap 33 is provided with an outer thread matched with the inner thread of the purifying cylinder 31, so that assembly connection is facilitated, and the screw cap 33 is connected with an exhaust nozzle in a penetrating manner and used for exhausting purified air. The filter component 32 includes threaded support plate 321, go up and strain a section of thick bamboo 323 and strain a section of thick bamboo 325 down, wherein threaded support plate 321 has offered the internal screw thread of a cooperation purification section of thick bamboo 31 for cylindrical outer circumference is last, threaded support plate 321 and 31 threaded assembly connect of purification section of thick bamboo, make things convenient for assembly connection, the dismouting change of purification filler is carried out the later stage, and even vertical the running through is fixed with a plurality of threaded section of thick bamboos 322 on the threaded support plate 321, the external screw thread has been seted up to threaded section of thick bamboo 322 outside, the upper end assembly connection of a plurality of threaded section of thick bamboos 322 has last strain a section of thick bamboo 323, and the lower extreme assembly connection of a plurality of threaded section of thick bamboos 322 strains a section of thick bamboo 325 down. One end of the upper filter cylinder 323 and one end of the lower filter cylinder 325 are arranged in a penetrating manner, a plurality of air holes are formed in the other ends of the upper filter cylinder 323 and the lower filter cylinder 325 and used for guiding air and supporting an internal purification block, internal threads matched with the threaded cylinder 322 are formed in one side, close to the opening end, of the inner circumference of the upper filter cylinder 323 and the lower filter cylinder 325, active carbon blocks 324 and Rui stone 326 are filled in the upper filter cylinder 323 and the lower filter cylinder 325 respectively, and the active carbon blocks 324 and Rui stone 326 are used for adsorbing formaldehyde in the air.
Referring to fig. 1, 2, 3, 4 and 5, the dust removing device includes two clamping frames 41, two clamping shells 42 and a dust removing assembly 43, wherein connecting pieces are vertically fixed on two sides of the two clamping frames 41, the connecting pieces adjacent to the two clamping frames 41 are fixedly connected by bolts, the two clamping frames 41 are assembled and connected in a matching manner, through grooves are formed in the upper end surface and the lower end surface of each clamping frame 41 for guiding the limiting clamping shells 42 to vertically lift, the two clamping shells 42 are assembled and inserted in the two clamping frames 41, and the dust removing assembly 43 is arranged in the two clamping shells 42. Two card shell 42 cross sections are the C type, two card shell 42's both ends set up slot and inserted sheet respectively, two adjacent slots of card shell 42 and inserted sheet are pegged graft and are passed through the bolt location, and two outside terminal surface middle parts of card shell 42 are all horizontally fixed with extension board 421, equal vertical spring 422 that is fixed with on the upper and lower terminal surface of extension board 421, and spring 422's both ends are fixed respectively on two inside upper and lower terminal surfaces of card frame 41, be fixed with plectrum 423 on two card shell 42's the extension board 421, be fixed with motor 412 on the card frame 41, and poking roller 413 is installed to the output that rotates motor 412, poking roller 413 is last to be fixed with the elastic sheet of multi-disc cooperation plectrum 423, poking roller 413 rotates and utilizes elastic sheet to drive plectrum 423 oscilation, thereby keep two card shell 42 vertical elevating movement in card frame 41, thereby accelerate the dust whereabouts. Dust removal component 43 includes that two cross sections are C type net shell 431 and filter cake 434, wherein two net shell 431 side end face openings set up, and two net shell 431 assemble fixed connection, two net shell 431 pass through bolted assembly and connect, vertically on two net shell 431's the outer terminal surface be fixed with polylith riser 432, and two net shell 431's the vertical grafting of outside has filter cake 434, two one of them both ends of net shell 431 are provided with pivot and admission pipe 433 respectively, and two one of them pivot of net shell 431 and admission pipe 433 rotate the both ends setting that runs through two card shells 42 through the bearing respectively, admission pipe 433 and 6 intercommunications of box of admitting air. One of the two clamping shells 42 is provided with an air outlet 424 in a penetrating manner, the air outlet 424 is communicated and fixedly connected with the air inlet end of the communication pipe 1, the top end of one of the two clamping shells 42 is vertically fixed with a rotating motor 425, the output end of the rotating motor 425 is connected with a driving gear 426, a rotating shaft at one top end of the two net shells 431 is fixed with a driven gear 435, and the driven gear 435 is meshed with the driving gear 426.
The working principle is that when the air purifier is used, the air pump 2 on the communicating pipe 1 drives indoor air to enter from the air inlet box 6 and guide the air into the dust removing device, the air enters through the air inlet cylinder 433 at the bottom end of the dust removing component 43, dust in the air is filtered by the net shell 431 and the filter cotton block 434, the air enters the clamping shell 42 after removing the dust, then the air in the clamping shell 42 enters the communicating pipe 1 and is guided into the purifying component 3, the air enters the purifying cylinder 31 and is discharged after being used for adsorbing formaldehyde in the air through the active carbon blocks 324 and the Rui stone 326 in the upper filter cylinder 323 and the lower filter cylinder 325 in the filtering component 32.
Example 2:
the device provided by the embodiment of the present invention has the same implementation principle and technical effect as those of the embodiment 1, and for the sake of brief description, reference may be made to the corresponding contents in the embodiment 1 without reference to the embodiment.
Referring to fig. 6, 7, 8, 9, 10 and 11, the dust removing device includes a filter box 51 with a bottom surface penetrating therethrough and a collection box 53 with a top surface penetrating therethrough, wherein screw holes are horizontally fixed on the opening end surfaces of the filter box 51 and the collection box 53, the filter box 51 and the screw holes on the collection box 53 are assembled and connected through bolts, so as to facilitate assembly and disassembly to clean collected dust, an air inlet pipe 52 is connected through the bottom of one end surface of the filter box 51, the air inlet pipe 52 is fixedly communicated with the air inlet box 6, an air outlet is vertically fixed through the other side of the top surface of the filter box 51, the air outlet of the filter box 51 is fixedly communicated with the air inlet end of the communication pipe 1, a plurality of baffle plates 54, a mesh sheet 55 and a mesh sheet 56 are sequentially and vertically fixed from the air inlet pipe 52 to the air outlet in the interior of the filter box 51, a plurality of air inlet pipes 55 are sequentially and horizontally fixed on the bottom surface of the filter box 51, a plurality of insert frames 531 are respectively inserted into the bottom ends of the filter cloth 56 and the filter cloth 55 and the filter cloth is inserted into the filter cloth 55.
The working principle is that when the air cleaner is used, the air pump 2 on the communicating pipe 1 drives indoor air to enter from the air inlet box 6 and guide the air into the dust removing device, the air is filtered by the baffle plate 54, the net sheet 55 and the filter cloth 56 in the filter box 51 to remove dust, the dust falls into the collecting box 53, then the air in the filter box 51 enters the communicating pipe 1 and is guided into the purifying component 3, the air enters the purifying cylinder 31, and the air is discharged after passing through the active carbon block 324 and the Rui stone 326 in the upper filter cylinder 323 and the lower filter cylinder 325 in the filter component 32 and being used for adsorbing formaldehyde in the air.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a based on indoor air purification device of MEMS formaldehyde sensor which characterized in that: including communicating pipe (1), air pump (2), purification subassembly (3), dust collector and box (6) admits air, link up on communicating pipe (1) and install air pump (2), the inlet end intercommunication of communicating pipe (1) has dust collector, and the end intercommunication of giving vent to anger of communicating pipe (1) has purification subassembly (3), dust collector is arranged in collecting the dust in the filtered air, and dust collector's inlet end intercommunication has inlet box (6).
2. The indoor air purification device based on the MEMS formaldehyde sensor as claimed in claim 1, wherein the purification assembly (3) comprises a purification cylinder (31), a filter assembly (32) and a threaded cover (33), wherein the bottom end of the purification cylinder (31) is arranged in a penetrating manner, the top end of the purification cylinder (31) is fixedly communicated with the air outlet end of the communication pipe (1) in a penetrating manner, an inner circumferential surface of the purification cylinder (31) is vertically provided with an inner thread, the filter assembly (32) is installed on the purification cylinder (31) through a horizontal thread, the threaded cover (33) is installed on the bottom end of the purification cylinder (31) through a thread, and an exhaust nozzle is connected to the threaded cover (33) in a penetrating manner.
3. The indoor air purification device based on the MEMS formaldehyde sensor as claimed in claim 2, wherein the filter assembly (32) comprises a threaded support plate (321), an upper filter cartridge (323) and a lower filter cartridge (325), wherein the threaded support plate (321) is in threaded assembly connection with the purification cartridge (31), a plurality of threaded cartridges (322) are uniformly and vertically fixed on the threaded support plate (321) in a penetrating manner, the upper filter cartridge (323) is in assembly connection with the upper ends of the plurality of threaded cartridges (322), and the lower filter cartridge (325) is in assembly connection with the lower ends of the plurality of threaded cartridges (322).
4. The indoor air purification device based on the MEMS formaldehyde sensor as claimed in claim 3, wherein one end of each of the upper filter cylinder (323) and the lower filter cylinder (325) is disposed through, the other end of each of the upper filter cylinder (323) and the lower filter cylinder (325) is provided with a plurality of air holes, one side of the inner circumference of each of the upper filter cylinder (323) and the lower filter cylinder (325) near the open end is provided with an internal thread matching with the threaded cylinder (322), and the upper filter cylinder (323) and the lower filter cylinder (325) are respectively filled with an active carbon block (324) and a Rui stone (326).
5. The indoor air purification device based on the MEMS formaldehyde sensor as claimed in claim 4, wherein the dust removal device comprises two clamping frames (41), two clamping shells (42) and a dust removal assembly (43), wherein the two clamping frames (41) are assembled and matched to be connected, through grooves are formed in the upper end face and the lower end face of each of the two clamping frames (41) in a penetrating mode, the two clamping shells (42) are assembled and inserted in the two clamping frames (41), and the dust removal assembly (43) is arranged in the two clamping shells (42).
6. The indoor air purification device based on the MEMS formaldehyde sensor as recited in claim 5, wherein the cross section of the two clamping shells (42) is C-shaped, a support plate (421) is horizontally fixed in the middle of the outer side end faces of the two clamping shells (42), springs (422) are vertically fixed on the upper and lower end faces of the support plate (421), two ends of each spring (422) are respectively fixed on the upper and lower end faces inside the two clamping frames (41), poking pieces (423) are fixed on the support plates (421) of the two clamping shells (42), a motor (412) is fixed on each clamping frame (41), a poking roller (413) is installed at the output end of the rotating motor (412), and a plurality of elastic pieces matched with the poking pieces (423) are fixed on the poking rollers (413).
7. The indoor air purification device based on the MEMS formaldehyde sensor as claimed in claim 5, wherein the dust removal component (43) comprises two reticulated shells (431) and a cotton filter block (434) with C-shaped cross sections, one side end faces of the two reticulated shells (431) are provided with openings, the two reticulated shells (431) are fixedly connected in an assembled manner, a plurality of vertical plates (432) are vertically fixed on the outer end faces of the two reticulated shells (431), the cotton filter block (434) is vertically inserted outside the two reticulated shells (431), two ends of one of the two reticulated shells (431) are respectively provided with a rotating shaft and an air inlet cylinder (433), the rotating shaft and the air inlet cylinder (433) of one of the two reticulated shells (431) respectively penetrate through two ends of the two clamping shells (42) through rotation of bearings, and the air inlet cylinder (433) is communicated with the air inlet box (6).
8. The indoor air purification device based on the MEMS formaldehyde sensor as claimed in claim 5, wherein an air outlet (424) is formed in one of the two clamping shells (42) in a penetrating manner, the air outlet (424) is communicated and fixedly connected with an air inlet end of the communicating pipe (1), a rotating motor (425) is vertically fixed at the top end of one of the two clamping shells (42), a driving gear (426) is connected to an output end of the rotating motor (425), a driven gear (435) is fixed on a rotating shaft at the top end of one of the two net shells (431), and the driven gear (435) is meshed with the driving gear (426).
9. The indoor air purification device based on the MEMS formaldehyde sensor as claimed in claim 4, wherein the dust removal device comprises a filter box (51) with a bottom surface penetrating through and a collection box (53) with a top surface penetrating through, wherein screw holes are horizontally fixed on the opening end surfaces of the filter box (51) and the collection box (53), the screw holes on the filter box (51) and the collection box (53) are assembled and connected through bolts, an air inlet pipe (52) is connected to the bottom of one end surface of the filter box (51) in a penetrating manner, the air inlet pipe (52) is fixedly communicated with the air inlet box (6), an air outlet is vertically fixed on the other side of the top surface of the filter box (51) in a penetrating manner, and the air outlet of the filter box (51) is fixedly communicated with the air inlet end of the communication pipe (1).
10. The indoor air purification device based on the MEMS formaldehyde sensor as recited in claim 9, wherein a baffle plate (54), a mesh (55) and filter cloth (56) are sequentially and transversely and vertically fixed inside the filter box (51) from an air inlet pipe (52) to an air outlet, a through groove is formed in the top end of the baffle plate (54) and the top surface of the filter box (51), the mesh (55) is provided with a plurality of blocks, the apertures of the plurality of blocks of mesh (55) are sequentially reduced along the air inlet pipe (52) towards the air outlet, a plurality of insertion frames (531) are transversely fixed on the bottom surface inside the filter box (51), and the insertion frames (531) are respectively inserted into the bottom ends of the baffle plate (54), the mesh (55) and the filter cloth (56).
CN202210883262.1A 2022-07-26 2022-07-26 Indoor air purification device based on MEMS formaldehyde sensor Pending CN115200139A (en)

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CN202210883262.1A CN115200139A (en) 2022-07-26 2022-07-26 Indoor air purification device based on MEMS formaldehyde sensor

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CN202210883262.1A CN115200139A (en) 2022-07-26 2022-07-26 Indoor air purification device based on MEMS formaldehyde sensor

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115855764A (en) * 2022-12-20 2023-03-28 常州大学怀德学院 Porous MEMS gas sensor for drying powder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115855764A (en) * 2022-12-20 2023-03-28 常州大学怀德学院 Porous MEMS gas sensor for drying powder

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