CN111853980A

CN111853980A - Air purifier

Info

Publication number: CN111853980A
Application number: CN202010602552.5A
Authority: CN
Inventors: 李志标
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2020-10-30

Abstract

The invention discloses an air purifier, which comprises a base and a purifier shell assembly fixedly connected with the base, wherein the purifier shell assembly is composed of a front shell, a middle shell and a rear shell, the purifier shell assembly is a hollow cavity, a fan base, a PCB (printed circuit board) and a plasma negative ion emitter are arranged in the cavity, a fan is arranged in the fan base, the fan and the plasma negative ion emitter are both electrically connected with the PCB, an air outlet is formed in the position, close to the rear, of the top end of the rear shell, a filter screen is arranged on the upper cover of the air outlet, an LED screen is further arranged on the position, close to the front, of the top end of the rear shell, the LED screen penetrates through the middle shell and extends to the outer side of the middle shell, the LED screen is electrically connected with the PCB, and at least a plasma negative ion emitter circuit is arranged on the PCB. The invention has the advantages of simple structure, good functionality, simple operation, good purification effect and stable work, and can meet the work of different working voltage environments.

Description

Air purifier

Technical Field

The invention relates to the technical field of air purifiers, in particular to an air purifier.

Background

Numerous expert researches in the air environmental protection field of the United nations prove that ecological-grade anions (small-particle-size anions) can actively attack and capture small-particle dust particles, so that the small-particle dust particles are condensed and precipitated, and the dust particles with the particle size of 2.5 microns (PM2.5) and below, even particles with the particle size of 1 micron, in the air are effectively removed, so that the harm of the PM2.5 to the human health is reduced. The ecological negative ions have the air purification effect that the negative ions are combined with positively charged particles such as bacteria, dust, smoke and the like in the air and are aggregated to fall into balls to eliminate PM2.5 hazards, the anions are coincidently subjected to Brownian motion in the air, the Brownian motion is an effective method for eliminating tiny dust objects, and the anions are combined with floating dust to promote the floating dust to move Brownian so as to eliminate the floating dust. After the negative ions are combined with bacteria and microorganisms, the bacteria, viruses and microorganisms generate structural change or energy transfer, so that the bacteria, viruses and microorganisms die and no new strains are formed. Negative ions can be used for: the anion air purifier, the anion electric blower, the air conditioner, the anion comb, the anion face cleaning instrument, the anion spot removing instrument, the medical equipment and the like, and the anion air purifier, the anion electric blower, the air conditioner, the anion comb, the anion face cleaning instrument, the anion spot removing instrument, the medical equipment and the like are widely used.

The plasma technology is characterized in that under the action of an external electric field, a large amount of energy-carrying electrons generated by medium discharge bombard pollutant molecules, and firstly, in the process of generating plasma, the instantaneous high energy generated by high-frequency discharge is enough to open the chemical energy of some harmful gas molecules so as to decompose the harmful gas molecules into simple substance atoms or harmless molecules; the second is that the plasma contains a large amount of high-energy electrons, positive and negative ions, excited particles and free radicals with strong oxidizing property, and the active particles and part of odor molecules are combined in a collision way, so that the odor molecules are in an excited state under the action of an electric field. When the energy obtained by the odor molecule is larger than the binding energy of the molecular bond energy, the chemical bond of the odor molecule is broken and directly decomposed into simple substance atoms or harmless gas molecules formed by the single atoms. Simultaneously, a large amount of active free radicals such as OH, HO2, O and the like and O3 with strong oxidizing property are generated to chemically react with harmful gas molecules, and finally, harmless products are generated. The complex macromolecular pollutants are converted into substances harmful to simple micromolecular safe substances, or the toxic harmful substances are converted into nontoxic substances so that the pollutants are degraded and removed. The plasma can be used to: the negative ion air purifier is used in industries such as a negative ion air purifier, chemical industry, mechanical hardware, medical equipment and the like.

Plasma, anion technique are widely applied to air purifier, however air purifier among the prior art's structure is complicated, and the functionality is poor, and purifying effect is not good, and the job stabilization nature of plasma emitter among the air purifier is poor, can't realize the work of a plurality of different operating voltage environment. Therefore, there is a great need for improvements in existing air purifiers.

Disclosure of Invention

The invention aims to provide an air purifier which has the advantages of simple structure, good functionality, simple operation, good purification effect and stable work, and can meet the work requirements of different working voltage environments, and the problems brought forward by the technical background are solved.

In order to achieve the purpose, the invention provides the following technical scheme: an air purifier comprises a base and a purifier shell component fixedly connected with the base, wherein the purifier shell component consists of a front shell, a middle shell and a rear shell, the purifier shell component is a hollow cavity, a fan base, a PCB board and a plasma emitter are arranged in the cavity, wherein the blower is arranged in the blower base, the blower and the plasma emitter are both electrically connected with the PCB, air inlets are formed in both sides of the middle shell, the air inlets are communicated with the inner cavity of the purifier shell component, an air outlet is formed in the position, close to the rear, of the top end of the rear shell, a filter screen is arranged on the upper cover of the air outlet, an LED screen is also arranged on the front position of the top end of the rear shell, the LED screen penetrates through the middle shell and extends to the outer side of the middle shell, and the LED screen is electrically connected with the PCB, the PCB is at least provided with a plasma emitter circuit, and the plasma emitter circuit is electrically connected with the plasma emitter.

Preferably, a power supply interface is arranged on the rear side of the base, the power supply interface is electrically connected with the PCB, and the voltage input by the power supply interface is 12V-24V direct current or 110V-250V alternating current.

Preferably, a touch key area is arranged below the front shell, and at least one switch key is arranged on the touch key area.

Preferably, an indicator lamp is arranged on the middle shell and located right above the LED screen, and the indicator lamp is electrically connected with the PCB.

Preferably, a finger position is arranged at the air outlet on the rear shell.

Preferably, the anion emitter circuit comprises filter circuit, anti-jamming circuit, first high frequency oscillation circuit, first power amplifier circuit, first boost circuit and first full-bridge rectification filter circuit, filter circuit's output is connected with anti-jamming circuit and first high frequency oscillation circuit's input respectively, first power amplifier circuit, first boost circuit and first full-bridge rectification filter circuit are connected in proper order to first high frequency oscillation circuit's output, first full-bridge rectification filter circuit's output is connected with anti-jamming circuit and equal anion emitter respectively.

Preferably, the anion emitter circuit comprises rectification filter circuit, second high frequency oscillation circuit, second power amplifier circuit, second boost circuit, second full-bridge rectification filter circuit, current-limiting circuit and feedback circuit, second high frequency oscillation circuit's input is connected with rectification filter circuit and feedback circuit respectively, and second high frequency oscillation circuit's output has connected gradually second power amplifier circuit, second boost circuit and second full-bridge rectification filter circuit, second full-bridge rectification filter circuit's output is connected with current-limiting circuit and feedback circuit respectively, current-limiting circuit's output and anion emitter such as be connected, feedback circuit's output and rectification filter circuit's input are connected.

Preferably, the plasma emitter is located between the fan and the filter screen, and the spacing distance between the plasma emitter and the fan and the filter screen is not less than 10 cm.

Compared with the prior art, the invention has the following beneficial effects:

1. the air purifier provided by the invention has a simple structure, air in a space is recycled through the fan, the air is sent to the plasma emitter through the air inlet, bacteria, peculiar smell, floating dust and the like in the air are removed by the plasma emitter, and then the air is filtered and removed again through the filter screen at the air outlet, so that the purpose of purifying the air in the space is achieved, and the purifying effect is good; the switch keys are arranged in the touch key area to control the fan and the plasma generator to work, so that the operation is simple; through power supply interface connection power and air purifier, look over air purifier's operating condition through the LED screen, the functional good, the user operation of being convenient for.

2. According to the invention, the plasma emitter is positioned between the fan and the filter screen, and the spacing distance between the plasma emitter and the fan and between the plasma emitter and the filter screen is not less than 10cm, so that the plasma and the negative ions emitted by the plasma emitter can be better purified and removed for bacteria, peculiar smell, floating dust and the like in the air, and the purification effect is better.

3. The plasma negative ion emitter in the invention is powered by the plasma negative ion emitter circuit and controls the operation of the plasma negative ion emitter circuit, wherein the voltage input by the plasma negative ion emitter circuit can be 12V-24V direct current or 110V-250V alternating current voltage, thereby meeting the requirements of different users and realizing the operation of a plurality of different operating voltage environments.

Drawings

FIG. 1 is an exploded view of an air purifier according to the present invention;

FIG. 2 is a schematic view of an air purifier according to the present invention;

FIG. 3 is a second schematic view of an air purifier according to the present invention;

FIG. 4 is a schematic block diagram of a plasma emitter circuit according to one embodiment of the present invention;

FIG. 5 is a schematic circuit diagram of a PDP (plasma display panel) emitter circuit according to an embodiment of the present invention.

FIG. 6 is a schematic block diagram of a plasma emitter circuit according to a second embodiment of the present invention;

Fig. 7 is a schematic circuit diagram of a circuit of a plasma negative ion emitter according to a second embodiment of the present invention.

The reference numerals and names in the figures are as follows:

1. a base; 2. a purifier housing assembly; 21. a front housing; 22. a middle shell; 23. a rear housing; 3. a fan base; 4. a PCB board; 41. a filter circuit; 42. an anti-jamming circuit; 43. a first high-frequency oscillation circuit; 44. a first power amplifier circuit; 45. a first booster circuit; 46. a first full-bridge rectification filter circuit; 47. a rectification filter circuit; 48. a second high-frequency oscillation circuit; 49. a second power amplifier circuit; 410. a second boost circuit; 411. a second full-bridge rectification filter circuit; 412. a current limiting circuit; 413; a feedback circuit; 5. a plasma emitter; 6. a fan; 7. an air outlet; 8. filtering with a screen; 9. an LED screen; 10. a touch key area; 11. switching a key; 12. an air inlet; 13. an indicator light; 14. a finger position; 15. a power supply interface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1 to 3, an embodiment of the present invention includes: an air purifier comprises a base 1 and a purifier shell assembly 2 fixedly connected with the base 1, wherein the purifier shell assembly 2 is composed of a front shell 21, a middle shell 22 and a rear shell 23, the front shell 21 and the rear shell 23 are respectively positioned at the front side and the rear side of the middle shell 22, the front shell 21 and the rear shell 23 are respectively fixedly connected with the middle shell 22, the purifier shell assembly 2 is a hollow cavity, a fan base 3, a PCB (printed circuit board) 4 and a plasma emitter 5 are arranged in the cavity, a fan 6 is arranged in the fan base 3, the fan 6 and the plasma emitter 5 are both electrically connected with the PCB 4, air inlets 12 are respectively arranged at the two sides of the middle shell 22, the air inlets 12 are communicated with the cavity in the purifier shell assembly 2, an air outlet 7 is arranged at the position close to the rear of the top end of the rear shell 23, a filter screen 8 is covered on the air outlet 7, plasma emitter 5 is located between fan 6 and the filter screen 8, and the spacing distance between plasma emitter 5 and fan 6 and the filter screen 8 is not less than 10cm, and the air that has the dust of floating is followed air intake 12 by fan 6 and is inhaled plasma emitter 5 department to purify the air that has the dust of floating by plasma emitter 5, the air after purifying is filtered the discharge again by the filter screen 8 of air outlet 7 department again, circulates in proper order, still install LED screen 9 on 23 tops of backshell lean on preceding position, LED screen 9 runs through mesochite 22 and extends to the mesochite 22 outside, and LED screen 9 with 4 electric connection of PCB board, be provided with plasma emitter circuit on PCB board 4 at least, plasma emitter circuit with 5 electric connection of plasma emitter.

Specifically, the rear side of the base 1 is provided with a power supply interface 15, the power supply interface 15 is electrically connected with the PCB 4, the voltage input by the power supply interface 15 is 12V to 24V of direct current voltage, the voltage input by the power supply interface 15 is 12V of direct current in this embodiment, and the air purifier in this embodiment can be used as a vehicle-mounted purifier.

Specifically, a touch key area 10 is arranged at a position of the front shell 21 close to the lower position, at least one switch key 11 is arranged on the touch key area 10, and a user can control the operation of the air purifier through the switch key 11, so that the operation is simple.

Specifically, be located LED screen 9 on the mesochite 22 and be provided with pilot lamp 13 directly over the position, pilot lamp 13 with PCB board 4 electric connection, pilot lamp 13 is used for showing whether power supply interface 15 switches on with power supply, and when power supply interface 15 and power supply switch on, pilot lamp 13 bright green.

Specifically, the rear shell 23 is provided with a finger position 14 at the air outlet 7, and the finger position 14 is convenient for a user to take and place, so that the experience of the user in use is improved.

Referring to fig. 4, the plasma negative ion emitter circuit in this embodiment is composed of a filter circuit 41, an anti-interference circuit 42, a first high-frequency oscillation circuit 43, a first power amplifier circuit 44, a first voltage boost circuit 45, and a first full-bridge rectification filter circuit 46, an output end of the filter circuit 41 is connected to input ends of the anti-interference circuit 42 and the first high-frequency oscillation circuit 43, an output end of the first high-frequency oscillation circuit 43 is sequentially connected to the first power amplifier circuit 44, the first voltage boost circuit 45, and the first full-bridge rectification filter circuit 46, an output end of the first full-bridge rectification filter circuit 46 is connected to the anti-interference circuit 42 and the plasma negative ion emitter 5, an input end of the filter circuit 41 is connected to a power supply interface 15, and a voltage input by the power supply interface 15 is a dc voltage of 12V.

Referring to fig. 5, in the diagram, a dc 12V voltage is limited by a resistor R1, filtered by a capacitor C1, inputted to a pin 7 of an automatic switching integrated block IC1, and a zener diode ZD obtains a stable dc 12V voltage, the resistor R2, the capacitor C2, and the pin 3, the pin 6, and the pin 4 of the automatic switching integrated block IC1 form an astable multi-coordination circuit to prevent high frequency signals from polluting mains power, when the frequency is one time higher than the design frequency, the pin 4 and the pin 6 of the automatic switching integrated block IC1 output a low level to turn off a transistor Q3, and at this time, a step-up transformer T1 has no voltage output to stop the whole circuit, and after the frequency returns to normal, the next round charges the capacitor C3 by the resistor R2 and the resistor R3 until the transistor Q3 is turned on, and the circuit returns to normal operation. The capacitor C4 protects the triode Q3, the high-frequency voltage output by the boosting transformer T1 medium-frequency alternating current boosting is rectified by the full bridge of the rectifier diode D1-D4, the capacitor C5 filters and outputs direct-current voltage, the direct-current voltage is fed back to the No. 8 pin of the automatic switching integrated block IC1 through the resistor R4 to control the vibration frequency, the output high voltage is stabilized, and then the high voltage is input into the plasma emitter 5, so that the plasma emitter 5 obtains stable direct-current 12V voltage. It should be noted that the model number of the automatic switching integrated circuit IC1 in this embodiment is DS 105B.

When the air purifier is used, a power supply interface 15 is connected with 12V direct current voltage, a switch key 11 at a touch key area 10 is turned on, at the moment, a fan 6 and a plasma emitter 5 start to work, the fan 6 sends air with floating dust to the plasma emitter 5 from an air inlet 12, the air is purified by the plasma emitter 5, the purified air is sent to a filter screen 8 at an air outlet 7 by the fan 6, and is filtered by the filter screen 8 and discharged, and the circulation is carried out.

Example two:

referring to fig. 1 to 3 and 6 to 7, the structure of the present embodiment is substantially the same as that of the embodiment, except that: the voltage input by the power supply interface 15 is 110V-250V of ac voltage, and the voltage input by the power supply interface 15 is 220V of ac voltage in this embodiment, and the air purifier in this embodiment can be used as a household air purifier.

In fig. 6, the plasma negative ion emitter circuit in this embodiment is composed of a rectifying and filtering circuit 47, a second high-frequency oscillating circuit 48, a second power amplifier circuit 49, a second voltage boosting circuit 410, a second full-bridge rectifying and filtering circuit 411, a current limiting circuit 412 and a feedback circuit 413, wherein the input end of the second high-frequency oscillating circuit 48 is respectively connected with the rectifying and filtering circuit 47 and the feedback circuit 413, the output end of the second high-frequency oscillating circuit 48 is sequentially connected with the second power amplifier circuit 49, the second voltage boosting circuit 410 and the second full-bridge rectifying and filtering circuit 411, the output end of the second full-bridge rectifying and filtering circuit 411 is respectively connected with the current limiting circuit 412 and the feedback circuit 413, the output end of the current limiting circuit 412 is connected with the plasma negative ion emitter 5, and the output end of the feedback circuit 413 is connected with the input end of the rectifying and filtering circuit 47.

In fig. 7, an alternating current 220V voltage is filtered by a rectifying diode D10-D13 rectifying capacitor C8 to obtain a 310V direct current voltage, and the voltage is applied to an integrated block IC2 through a resistor R6, a diode D5 between a pin 1 and a pin 8 of the integrated block IC2 is a bootstrap diode, the capacitor C11 connected between a pin 6 and a pin 8 of the integrated block IC2 is charged, the pin 8 of the integrated block IC2 supplies power to a high-end output driving power amplifier circuit inside the integrated block IC2, the resistor R7 and the capacitor C10 determine the vibration frequency of a vibrator inside the integrated block IC2, and the pin 7 and the pin 5 of the integrated block IC2 output high-frequency pulses respectively to drive a field effect transistor Q1 and a field effect transistor Q2, so that the field effect transistor Q1 and the field effect transistor Q2 are alternately turned on. The capacitor C12 and the capacitor C6 are connected in series for voltage division and filtering, the output power is transmitted to the step-up transformer T2 through the current-limiting inductor L to be stepped up to the voltage required by design, and then is rectified through the high-voltage rectifier tube D6-D9, the capacitor C7 filters to obtain the direct-current high voltage, and then the direct-current high voltage is fed back to the commercial power through the resistor R5, and the direct-current high voltage is connected with the plasma emitter 5.

Other unexplained contents in this embodiment refer to the first embodiment, and are not described again here.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an air purifier, includes base (1) and with base (1) fixed connection's purifier shell subassembly (2), its characterized in that: the purifier shell component (2) is composed of a front shell (21), a middle shell (22) and a rear shell (23), the purifier shell component (2) is a hollow cavity, a fan base (3), a PCB (printed circuit board) board (4) and a plasma emitter (5) are arranged in the cavity, a fan (6) is arranged in the fan base (3), the fan (6) and the plasma emitter (5) are electrically connected with the PCB board (4), air inlets (12) are arranged on two sides of the middle shell (22), the air inlets (12) are communicated with the inner cavity of the purifier shell component (2), an air outlet (7) is arranged at the top end of the rear shell (23) close to the rear position, a filter screen (8) is arranged on the upper cover of the air outlet (7), an LED screen (9) is further arranged at the top end of the rear shell (23) close to the front position, the LED screen (9) penetrates through the middle shell (22) and extends to the outer side of the middle shell (22), and the LED screen (9) is electrically connected with the PCB (4), the PCB (4) is at least provided with a plasma negative ion emitter circuit, and the plasma negative ion emitter circuit is electrically connected with the plasma negative ion emitter (5).

2. An air cleaner according to claim 1, wherein: the rear side of the base (1) is provided with a power supply interface (15), the power supply interface (15) is electrically connected with the PCB (4), and the voltage input by the power supply interface (15) is 12V-24V direct current or 110V-250V alternating current voltage.

3. An air cleaner according to claim 1, wherein: the front shell (21) is provided with a touch key area (10) close to the lower position, and the touch key area (10) is provided with at least one switch key (11).

4. An air cleaner according to claim 1, wherein: and an indicator lamp (13) is arranged on the middle shell (22) and is positioned right above the LED screen (9), and the indicator lamp (13) is electrically connected with the PCB (4).

5. An air cleaner according to claim 1, wherein: and a finger position (14) is arranged on the rear shell (23) and positioned at the air outlet (7).

6. An air cleaner according to claim 1, wherein: the anion emitter circuit comprises filter circuit (41), anti-jamming circuit (42), first high frequency oscillation circuit (43), first power amplifier circuit (44), first boost circuit (45) and first full-bridge rectification filter circuit (46), the output of filter circuit (41) is connected with the input of anti-jamming circuit (42) and first high frequency oscillation circuit (43) respectively, first power amplifier circuit (44), first boost circuit (45) and first full-bridge rectification filter circuit (46) are connected in proper order to the output of first high frequency oscillation circuit (43), the output of first full-bridge rectification filter circuit (46) is connected with anti-jamming circuit (42) and equal anion emitter (5) respectively.

7. An air cleaner according to claim 1, wherein: the plasma emitter circuit is composed of a rectifying and filtering circuit (47), a second high-frequency oscillation circuit (48), a second power amplifier circuit (49), a second booster circuit (410), a second full-bridge rectifying and filtering circuit (411), a current limiting circuit (412) and a feedback circuit (413), the input end of the second high-frequency oscillation circuit (48) is respectively connected with a rectifying and filtering circuit (47) and a feedback circuit (413), the output end of the second high-frequency oscillation circuit (48) is sequentially connected with a second power amplifier circuit (49), a second booster circuit (410) and a second full-bridge rectification filter circuit (411), the output end of the second full-bridge rectification filter circuit (411) is respectively connected with a current limiting circuit (412) and a feedback circuit (413), the output end of the current limiting circuit (412) is connected with a plasma emitter (5), the output end of the feedback circuit (413) is connected with the input end of the rectifying and filtering circuit (47).

8. An air cleaner according to claim 1, wherein: the plasma negative ion emitter (5) is located between the fan (6) and the filter screen (8), and the spacing distance between the plasma negative ion emitter (5) and the fan (6) and the filter screen (8) is not less than 10 cm.