CN214223351U - Miniature plasma developments air purifier - Google Patents
Miniature plasma developments air purifier Download PDFInfo
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- CN214223351U CN214223351U CN202023049874.6U CN202023049874U CN214223351U CN 214223351 U CN214223351 U CN 214223351U CN 202023049874 U CN202023049874 U CN 202023049874U CN 214223351 U CN214223351 U CN 214223351U
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Abstract
The utility model discloses a micro plasma dynamic air purifier, which mainly comprises a fan, a plasma generator, an electronic air filter screen and a control circuit; the fan introduces the external air into the purifier to form an air passage, the air is purified by the electronic air filter sieve and the plasma generator to generate a large amount of plasma, the control circuit comprises at least two control units, each control unit generates direct current high voltage of more than 6000V and supplies the direct current high voltage to the electronic air filter sieve and the plasma generator respectively, and pulse control signals of the fan and the plasma generator can be controlled according to the external air quality to better purify the air, and the purifier can effectively purify the air and kill viruses; the whole device has compact structure and can realize micro and light weight; is beneficial to large-scale production and application.
Description
Technical Field
The utility model belongs to the technical field of mechano-electronic integration and intelligent small household electrical appliances, a miniature plasma developments air purifier is related to.
Background
Along with the rapid development of science and technology and society, the quality of living environment of people becomes worse and worse, especially the cleanliness of air is lower and lower; various micro-particles exist in the air for people to live, and microorganisms, bacteria and viruses are adhered to various particles and fly around, so that the health of people is seriously harmed.
Present air purifier class product can't carry out effectual cleaing away to aerosol especially virus mostly to current air purifier often the function singleness has very big limitation, can't carry out the purification that the target is clear and definite according to the particular case of indoor environment (especially when "new coronavirus" is violently gone on, urgently need an effectual neotype air purification device). Regarding the current domestic air purification methods, the following are mainly available: 1. the physical adsorption type indoor air purifier consists of mainly porous active carbon, silica gel, alumina, molecular sieve, etc. and features its adsorption of indoor benzene, toluene and formaldehyde. 2. A chemical indoor air purifier features that the physical material is treated and mixed with chemical adhesive and then coated in room to obtain indoor air purifying effect. 3. A photocatalytic technology for decomposing air by photocatalyst and cold catalyst, the photocatalytic method is one of the advanced oxidation technologies, and the strong oxidant generated by photocatalyst is used to oxidize organic pollutant into H2O，CO2Etc. to purify the air. 4. Ionization methodThe indoor air purifier may be microwave discharge, DC arc discharge, low voltage pulse discharge, high voltage pulse discharge, etc. to eliminate pollutant and kill virus in air. 5. A covering method for indoor air purifier features that the aromatic plant is used to sterilize indoor air. The sterilization methods are basically focused on two methods: 1, ultraviolet rays; and 2, manually spraying disinfectant.
According to market research combined with practical analysis as follows: most of products in the current market are filter type air purifiers, wherein positive pressure type and negative pressure type air purifiers can be used, the advantages and the disadvantages are as described above, foreign products flood domestic markets, most of the products use piezoelectric ceramic transformers, the output power of the piezoelectric ceramic transformers is only dozens of milliwatts, the effective air purification and the related virus killing are difficult to achieve, the energy consumption is required for purifying and killing the virus in the air, and generally, the products with certain energy consumption can achieve good air purification effect and kill 'new crown virus'. The high voltage power that traditional high frequency high voltage transformer can produce is far greater than piezoelectric transformer, and based on this, the utility model provides a novel miniature plasma developments air purifier to detect through the laboratory and can reach splendid effect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a miniature plasma developments air purifier to prior art not enough, the device combines plasma generating device through the air filter sieve that adopts the electronic type can effectively air-purifying and kill the virus.
The utility model adopts the technical scheme as follows:
a micro plasma dynamic air purifier comprises a shell, a first fan, a plasma generator, an electronic air filter screen and a control circuit, wherein the first fan, the plasma generator, the electronic air filter screen and the control circuit are arranged in the shell; the shell is provided with an air inlet and an air outlet, the first fan is arranged at the air inlet and introduces the outside air into the purifier to form an air passage, and the air is purified by the electronic air filter sieve and the plasma generator and generates a large amount of plasma to be discharged along with the air passage; the plasma generator comprises two electrodes and a driving piece, and the distance between the two electrodes can be dynamically adjusted under the driving of the driving piece; the control circuit comprises at least two control units, each control unit comprises a single chip microcomputer and a transformer circuit, the working state of the transformer circuit is controlled by the single chip microcomputer, the transformer circuit is used for increasing the voltage to be direct current high voltage of more than 6000V, the high voltage output of one control unit is connected with two electrodes of the plasma generator, the single chip microcomputer outputs pulse control signals to a driving piece in the plasma generator in the control unit, the high voltage output of the other control unit is connected with two electrodes of the electronic air filter sieve to enable an electric field to be formed between the two electrodes, and the single chip microcomputer outputs the pulse control signals to the first fan in the control unit.
In the above technical scheme, further, the electronic air filter sieve comprises a plurality of positive plates and negative plates, the positive plates and the negative plates are alternately arranged oppositely, each positive plate is connected with the high-voltage positive electrode, and each negative plate is connected with the high-voltage negative electrode.
Furthermore, the positive plate and the negative plate are made of metal, graphene and carbon fiber materials or are made by coating a conductive material on a non-metal sheet.
Furthermore, the plasma generator adopts a rotary type or a translational type, the rotary type is used for adjusting the distance between the two electrodes through the relative rotation between the electrodes, and the translational type is used for adjusting the distance between the two electrodes through the opposite or back-to-back movement of the two electrodes.
Further, the plasma generator comprises a motor, an eccentric cam and a conductive outer ring; the conductive outer ring is used as an electrode to be connected with a high-voltage cathode, the inner ring wall of the conductive outer ring is provided with a plurality of protruding structures, the eccentric cam is used as another electrode to be connected with a high-voltage anode, the eccentric cam is coaxially arranged in the conductive outer ring, an air gap is formed between the eccentric cam and the conductive outer ring, the motor is used for driving the eccentric cam to rotate, and the distance between the two electrodes changes repeatedly and continuously to generate plasma along with the rotation of the motor.
Furthermore, the plasma generator is also provided with a second fan, and a rotating shaft of the second fan is coaxially connected with the eccentric cam and is used for being matched with the first fan to form an air channel for directional airflow.
Furthermore, the purifier also comprises a single chip microcomputer, wherein the air quality monitoring unit is used for monitoring the quality of the outside air and transmitting corresponding signals to each control unit, an intelligent control reference point is arranged in the single chip microcomputer, and the single chip microcomputer compares the received transmission signals of the air quality monitoring unit with the intelligent control reference point to select pulse control signals for controlling the driving piece and/or the first fan.
The utility model has the advantages that:
the utility model can effectively purify air and kill virus by adopting the electronic air filter sieve and combining the plasma generating device; the output waveform of the singlechip can be dynamically adjusted according to the external air quality so as to control the running states of the fan and the plasma generator to better purify the air; the whole device has compact structure and can realize micro and light weight; is beneficial to large-scale production and application.
Drawings
FIG. 1 is a schematic diagram of a specific structure of the product of the present invention;
FIG. 2 is a schematic view of an embodiment of the electronic air filter of the present invention;
FIG. 3 is a schematic view showing a specific structure of the plasma generator of the present invention;
fig. 4 is an overall electrical implementation and schematic of the apparatus of the present invention;
fig. 5 is a diagram of the dynamic control waveform output of the single chip machine (pic12f683) in the example shown in fig. 4.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, for the utility model discloses a concrete product schematic diagram of miniature plasma developments air purifier, the utility model discloses a miniature plasma developments air purifier mainly includes fan (not drawn in fig. 1), plasma generator 4, electron air filter sieve 3, control circuit 2, as concrete product, and it still includes casing and upper cover in order to form the product shell, shellOn open there is the air intake, the fan can set up near the air intake and be arranged in introducing the product with the ambient air for the ambient air can get into electronic air filter sieve, electronic air filter sieve as shown in fig. 2, including a plurality of positive plates and negative pole piece, positive plate and negative pole piece set up and the pole piece is relative in turn, connect the direct current high voltage more than 6000V between positive plate and negative pole piece (each positive plate is connected with high-voltage positive pole, each negative pole piece is connected with high-voltage negative pole), form the electric field in electronic air filter sieve like this, the interval control between positive and negative pole piece is about 1.5mm, should not too far away or too near, the direct current electric field intensity who establishes is: 6000V/1.5 mm 4X 106V/m, the electric field strength of four million volts per meter; calculate according to 8 millimeters/second of air velocity, can catch one thousand eight million pm2.5 per second, when outside air flows through electron air filter sieve, the air current is carried dust, dust adhesion virus, bacterium, when passing through high voltage electric field, dust can be adsorbed, subside under the effect of electric field, and pure air can continue to advance along with the air flue that the fan formed. The positive plate and the negative plate can be made of metal, graphene and carbon fiber materials or made of a non-metal sheet coated with a conductive material.
The plasma generator comprises two electrodes and a driving piece, and the distance between the two electrodes can be dynamically adjusted under the driving of the driving piece; the control circuit comprises at least two control units, each control unit comprises a single chip microcomputer and a transformer circuit, the working state of the transformer circuit is controlled by the single chip microcomputer, the transformer circuit is used for increasing the voltage to be direct current high voltage of more than 6000V, the high voltage output of one control unit is connected with two electrodes of the plasma generator, the single chip microcomputer outputs pulse control signals to a driving piece in the plasma generator in the control unit, the high voltage output of the other control unit is connected with two electrodes of the electronic air filter sieve to enable an electric field to be formed between the two electrodes, and the single chip microcomputer outputs the pulse control signals to the fan in the control unit.
As shown in fig. 3, the plasma generator of the present invention can adopt a rotary dynamic plasma generating device: it is known that when arc discharge occurs at two ends of a high-voltage, a purple and bright light conducting gas band can be generated, but to generate required plasma, the distance between two electrodes needs to be controlled well, the distance is far, the arc discharge cannot be realized, the distance is close, the arc discharge is changed into electric spark, and ozone is generated; in addition, the stability of the extra-high voltage is an old difficult problem. Therefore, the utility model discloses in adopt two end distances of extra-high voltage changeable rotation type dynamic plasma generating device at random, in fig. 3, driving piece among the plasma generator is the motor, and eccentric cam is as a high-pressure conductive electrode, takes on positive high pressure, is driven by the rotation of controllable rotational speed motor, and the fan blade can be equipped with on the top of motor, also can not adorn, and eccentric cam's outer loop is that an inner wall has a conducting ring of a n protruding structure, connects the negative high pressure as another high-pressure conductive electrode. The eccentric cam and the conducting ring are coaxially arranged, an air gap is formed between the eccentric cam and the conducting ring, the minimum distance of the air gap is designed according to the condition that plasma can be generated, when the motor rotates, the approaching distance of the two ends of the extra-high voltage changes repeatedly, the needed plasma can be continuously generated, and the plasma can diffuse and move along with the air passage, so that the air purification effect is achieved.
Furthermore, the utility model discloses a clarifier can also be according to external environment's air quality, and control fan, plasma generator specifically adopt what kind of pulse control signal in order to control its operation mode to guarantee purifying effect, it is specific, the clarifier can include air quality monitoring unit for monitor external air quality and with the singlechip among corresponding signal transmission to every the control unit, be provided with the intelligent control reference point in the singlechip, the singlechip compares the pulse control signal with the selective control driving piece and/or first fan according to the transmission signal and the intelligent control reference point of the air quality monitoring unit of receipt.
As shown in fig. 4, for the electrical control schematic diagram of the present invention, two control units are mainly implemented by two single-chip microcomputers pic12f683, wherein:
q3 and Q13 are main oscillation triodes, the model is D882, and L1 and L11 are the inductances of collector loops; l2 and L12 are feedback coils, R8 and R18 are feedback resistors, and the normal oscillation work of Q3 and Q13 is ensured, so that Q3, Q13, R8, R18, L1, L11, L2 and L12 form two complete oscillation circuits, the frequency of the two oscillation circuits is 80KHz, the amplitude of the two oscillation circuits is 5Vp-p, and due to the coupling action of the transformers B1 and B2, high-voltage of 80KHz and 1600V is induced in the secondary coils L3 and L13;
d1, C5, D11 and C15 form a first-stage positive rectification circuit, and 800V direct-current voltage is output at two ends of C5 and C15 respectively; d2 and C3, D12 and C13 form a first stage positive voltage-multiplying booster circuit, and the two ends of D2 and D12 can respectively measure the direct-current high voltage of 800V multiplied by 2 and equal to 1600V; d3 and C6, D13 and C16 form a second stage voltage-doubling booster circuit, and 1600V plus 800V direct-current voltage equal to 2400V can be measured at two ends of D3 and D13 respectively; d4 and C4, D14 and C14 form a third stage voltage doubling booster circuit, and 2400V plus 800V direct current high voltage equal to 3200V can be detected at two ends of D4 and D14. Similarly, D5, C7, D15 and C17 form a first-stage negative high-voltage rectification, and negative 800V direct-current voltage can be measured at the ends of C7 and C17 respectively; d6, C9, D16 and C19 form a negative first-stage voltage-multiplying booster circuit, and negative 800V plus negative 800V equal to negative 1600V negative high voltage can be detected at the negative terminals of D6 and D19 respectively; d7 and C8, D17 and C18 form a second-stage negative voltage-multiplying booster circuit, and negative 1600V plus negative 800V equal to negative 2400V negative high voltage can be detected at the negative terminals of D7 and D17 respectively; d8 and C10, D18 and C20 form a third-stage negative voltage-multiplying booster circuit, and negative 2400V plus negative 800V equal to negative 3200V negative high voltage can be detected at the negative terminals of D8 and D18 respectively. In the scheme, the parameters of the capacitors C3, C13, C4, C14, C5, C15, C6, C16, C7, C17, C8, C18, C9, C19, C10 and C20 are 2KV and 0.01 uf; d1, D2, D3, D4, D5, D6, D7, D8, D11, D12, D13, D14, D15, D16, D17 and D18 are RFC2K diodes, and the parameters are 2000V and 200 mA; the high-frequency transformers B1 and B2 can be wound by EE10 and EE13 type skeletons;
thus, the whole product has two groups of direct current high voltage: the high-voltage power supplies with the positive 3200V and the negative 3200V equal to 6400V are respectively output to two electrodes of the plasma generator and two electrodes of the electronic gas filter screen by high-voltage wiring terminals J3 and J13.
In fig. 1, R10 and R11, R20 and R21 constitute a voltage dividing circuit in which R10 and R20 are 10 megaohms, and R11 and R21 are 10K ohms, and when the positive dc voltage is 3000 or more, the divided voltage across the 10K ohm resistor is about 3.5 volts. When the air quality is poor, the voltage of 3.5V can be reduced, and the utility model sets 3.5V and 2V as the intelligent control reference points for air quality monitoring;
the specific working process is as follows: the states of Q2 and Q12 restrict the working states of Q3 and Q13 (both are pulse control states) through R9 and R19, and the working states of Q2 and Q12 are related to the output pulse signal of the 5 th pin of the single chip microcomputer pic12f683 through R7 and R17. That is, the 5 th pin of the single chip outputs high level, Q2 and Q12 are conducted to the ground, Q3 and Q13 do not work, and B1 and B2 do not output high voltage. J2 and J12 are pulse control output ends of two rotating motors (namely, a fan and a motor of a plasma generator), and the rotating speed of the motors is fast and slow and depends on the pulse width (duty ratio) output by the 2 nd pin of the singlechip. The whole single-chip microcomputer control process in the embodiment is as shown in fig. 5: when the air quality is good, the sixth pin of the single chip microcomputer obtains 3.5V voltage, the fifth pin outputs 4/5 period T high level after program processing, and the transformer outputs 1/5 period high voltage. The period of the motor duty 1/5 drives the motor to rotate slowly to reduce the air output and reduce the amount of plasma generated. On the contrary, when the air quality is seriously polluted, the sixth pin of the single chip microcomputer obtains 2V voltage, the fifth pin outputs 1/5 period high level signals after program processing, at the moment, the transformers B1 and B2 output 4/5 period high voltage to improve the air purification capacity, and the rotating speeds of the fan and the ion motor are accelerated to improve the air purification efficiency.
The three sample machines with different structures are manufactured by adopting the utility model, the smoke and the peculiar smell can be rapidly removed through the test, the particles are effectively removed, the virus is killed, and the air is purified; and the volume and the weight of the product can be greatly reduced, and the miniaturization and the lightweight are realized in the similar products.
Claims (6)
1. A micro plasma dynamic air purifier is characterized by comprising a shell, a first fan, a plasma generator, an electronic air filter screen and a control circuit, wherein the first fan, the plasma generator, the electronic air filter screen and the control circuit are all arranged in the shell; the shell is provided with an air inlet and an air outlet, the first fan is arranged at the air inlet, and gas is exhausted from the air outlet after passing through the electronic air filter screen and the plasma generator; the electronic air filter sieve comprises a plurality of positive plates and negative plates, and the positive plates and the negative plates are alternately arranged oppositely; the plasma generator comprises two electrodes and a driving piece, and the distance between the two electrodes can be dynamically adjusted under the driving of the driving piece; the control circuit comprises at least two control units, each control unit comprises a single chip microcomputer and a transformer circuit, the single chip microcomputer controls whether the transformer circuit works or not, the transformer circuit is used for increasing the voltage to be direct-current high voltage of more than 6000V, the high-voltage output of one control unit is connected with two electrodes of the plasma generator, the single chip microcomputer outputs pulse control signals to a driving piece in the plasma generator in the control unit, the high-voltage output of the other control unit is connected with a positive pole piece and a negative pole piece of the electronic air filter sieve to enable an electric field to be formed between the positive pole piece and the negative pole piece, and the single chip microcomputer outputs the pulse control signals to the first fan in the control unit.
2. The micro plasma dynamic air purifier of claim 1, wherein the positive plate and the negative plate are made of conductive materials such as metal, graphene or carbon fiber.
3. The micro plasma dynamic air purifier of claim 1, wherein the plasma generator is of a rotary type or a translational type, the rotary type being used to adjust the distance between the two electrodes by relative rotation between the electrodes, and the translational type being used to adjust the distance between the two electrodes by moving the two electrodes toward or away from each other.
4. The micro plasma dynamic air purifier of claim 1, wherein the plasma generator comprises a motor, an eccentric cam, a conductive outer ring; the conductive outer ring is used as an electrode to be connected with a high-voltage cathode, the inner ring wall of the conductive outer ring is provided with a plurality of protruding structures, the eccentric cam is used as another electrode to be connected with a high-voltage anode, the eccentric cam is coaxially arranged in the conductive outer ring, an air gap is formed between the eccentric cam and the conductive outer ring, the motor is used for driving the eccentric cam to rotate, and the distance between the two electrodes changes repeatedly and continuously to generate plasma along with the rotation of the motor.
5. The micro plasma dynamic air purifier of claim 4, wherein the plasma generator is further provided with a second fan, and a rotating shaft of the second fan is coaxially connected with the eccentric cam.
6. The miniature plasma dynamic air purifier as recited in claim 1, wherein said single chip microcomputer employs a pic12f683 chip.
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| CN202023049874.6U CN214223351U (en) | 2020-12-17 | 2020-12-17 | Miniature plasma developments air purifier |
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| CN202023049874.6U CN214223351U (en) | 2020-12-17 | 2020-12-17 | Miniature plasma developments air purifier |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114172026A (en) * | 2021-12-21 | 2022-03-11 | 青岛海信日立空调系统有限公司 | Mechanical pulse type negative ion generation method |
| CN114279039A (en) * | 2021-12-21 | 2022-04-05 | 青岛海信日立空调系统有限公司 | Air conditioning device |
| CN114383248A (en) * | 2021-12-21 | 2022-04-22 | 青岛海信日立空调系统有限公司 | Air conditioning device |
| CN114396697A (en) * | 2021-12-21 | 2022-04-26 | 青岛海信日立空调系统有限公司 | Dynamic generation method of negative ions |
| CN114992764A (en) * | 2022-06-13 | 2022-09-02 | 安徽工业大学 | AC/DC enhanced discharge plasma air purifier |
| WO2023115897A1 (en) * | 2021-12-21 | 2023-06-29 | 青岛海信日立空调系统有限公司 | Air conditioning device and negative ion dynamic generation method thereof |
-
2020
- 2020-12-17 CN CN202023049874.6U patent/CN214223351U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114172026A (en) * | 2021-12-21 | 2022-03-11 | 青岛海信日立空调系统有限公司 | Mechanical pulse type negative ion generation method |
| CN114279039A (en) * | 2021-12-21 | 2022-04-05 | 青岛海信日立空调系统有限公司 | Air conditioning device |
| CN114383248A (en) * | 2021-12-21 | 2022-04-22 | 青岛海信日立空调系统有限公司 | Air conditioning device |
| CN114396697A (en) * | 2021-12-21 | 2022-04-26 | 青岛海信日立空调系统有限公司 | Dynamic generation method of negative ions |
| WO2023115897A1 (en) * | 2021-12-21 | 2023-06-29 | 青岛海信日立空调系统有限公司 | Air conditioning device and negative ion dynamic generation method thereof |
| CN114992764A (en) * | 2022-06-13 | 2022-09-02 | 安徽工业大学 | AC/DC enhanced discharge plasma air purifier |
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