A plasma vehicle-mounted air purifier

By using plasma air purification technology and ultrasonic vibrators in the vehicle air purifier, the shortcomings in the purification effect and safety of the existing air purifiers are solved, and an efficient, safe and environmentally friendly air purification effect is achieved.

CN115042596BActive Publication Date: 2025-03-18SHANGHAI UNIV (JIAXING ZHEJIANG) EMERGING IND RES INST
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Patent Information

Application Number
CN202210803361.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-07
Publication Date
2025-03-18
Estimated Expiration
2042-07-07

AI Technical Summary

Technical Problem

The existing ozone air purifiers and negative oxygen ion air purifiers have shortcomings in terms of purification effect and safety, especially the high ozone concentration will pose a threat to human health, while the negative oxygen ion air purifiers are prone to absorb particulate substances such as dust on the interior surface of the vehicle, and the cost is high.

Method used

A plasma air purifier is used to pump air into the purifier through a fan. The air first filters particulate matter through the filter, and then converts it into plasma through the discharge head. Ultrasonic waves are generated using ultrasonic vibrators to improve the purification efficiency of the plasma.

Benefits of technology

It has achieved safe and reliable, environmentally friendly, pollution-free, efficient sterilization, and high air purification efficiency, avoiding the harm of excessive ozone to the human body, and through the application of ultrasonic waves, the purification efficiency of plasma on air is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application provides a plasma vehicle-mounted air purifier, which relates to the field of purification devices, including a circuit board, components, a fan, a filter and a discharge head. The discharge head is connected to the components and the fan respectively. The air passes through the filter, the fan, and then the discharge head to convert into plasma. The plasma vehicle-mounted air purifier of the present invention adopts plasma air purification technology. The air is drawn into the interior of the vehicle-mounted purifier through an internal fan. The air first passes through the filter to filter particulate matter, and then passes through the fan to enter the discharge head. When the air enters the discharge head, it causes the ultrasonic vibrating plate to vibrate and generate ultrasonic waves. Finally, after the air is ionized, sterilized and purified by the discharge head, the fresh air and plasma are concentratedly conducted to the outside with the ultrasonic wave, which produces an effective sterilization and purification effect on the surrounding air. The entire air purification process is safe and reliable, and the application of ultrasonic waves also improves the purification efficiency of plasma on the air.
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Description

Technical Field

[0001] The present application relates to the technical field of air purification devices, and in particular to a plasma vehicle-mounted air purifier. Background Art

[0002] The principle of the car air purifier is to purify the air through the combination of the filter and the air plasma generator inside the device. The fan draws air into the car, the filter purifies the pollutants in the air, and the fan sucks the air through the filter and sends it into the plasma generator. After the corona discharge and dielectric barrier discharge are combined, plasma is finally generated and enters the air. The large amount of active groups such as active oxygen and active nitrogen in the plasma can effectively kill polluting bacteria and fungi in the car. At the same time, the trace ozone carried also has a good auxiliary effect on preventing respiratory infections in the human body. After the fan continues to work, it will cause the air in the car to circulate and continuously sterilize the environment inside the car to achieve the best air purification effect.

[0003] Compared with the existing ozone air purifiers and negative oxygen ion air purifiers on the market, the amount of ozone is extremely important. Ozone concentrations greater than 0.1PPM will cause headaches and dizziness, and concentrations greater than 0.5PPM will cause difficulty breathing. If you forget to close the windows during the trial, the concentration will accumulate, the respiratory mucosa will be seriously damaged, and the human body will be in danger of life. In comparison, the limitations of negative oxygen ion air purifiers are more obvious, and negative ions can easily cause dust and other particles to be adsorbed on surfaces such as windows in the car. Over time, it is difficult to clean and the cost is relatively high. Summary of the invention

[0004] The purpose of the present invention is to provide a plasma vehicle-mounted air purifier, which has the beneficial effects of being safe, reliable, environmentally friendly, pollution-free, highly efficient in sterilization, and highly efficient in air purification, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A plasma vehicle-mounted air purifier, comprising:

[0007] Circuit boards;

[0008] Components, the components are connected to the circuit board and are electrically connected to the circuit board;

[0009] A fan, the fan is electrically connected to the circuit board;

[0010] Filter screen, which is located on one side of the fan;

[0011] The discharge head is connected to the components and the fan respectively, and the air passes through the filter and the fan in sequence, and then passes through the discharge head to be converted into plasma.

[0012] As a further solution of the present invention: the components include a high-frequency transformer, and the high-frequency transformer is electrically connected to the circuit board and the discharge head respectively.

[0013] As a further solution of the present invention: the fan is arranged between the circuit board and the discharge head.

[0014] As a further solution of the present invention: the filter is arranged at one side of the air inlet of the fan and is used to filter particulate matter in the air.

[0015] As a further solution of the present invention: the discharge head comprises:

[0016] Fixed plate;

[0017] Ultrasonic vibrating sheet;

[0018] Metal positive electrode;

[0019] A metal ground electrode, wherein the fixing plate, the ultrasonic vibration sheet, the metal positive electrode and the metal ground electrode are arranged in sequence, and the metal positive electrode is connected to the fixing plate, the ultrasonic vibration sheet and the metal ground electrode in sequence;

[0020] The ultrasonic vibration sheet is arranged at the connection between the metal positive electrode and the fan.

[0021] As a further solution of the present invention: the ultrasonic vibration sheet is made of elastic metal, is ring-shaped, and has six metal sheets extending inward; the ring-shaped part of the ultrasonic vibration sheet is installed on a fixed plate through a metal positive electrode, and an air duct opening is provided at one end of the discharge head close to the fan, and the metal sheet is arranged on the air duct opening to block the air duct opening.

[0022] As a further solution of the present invention: the discharge head includes a shunt, and the shunt is connected to the metal positive electrode.

[0023] As a further solution of the present invention: the input end of the high-frequency transformer is electrically connected to the circuit board, and the output end is respectively connected to the metal positive electrode and the metal ground electrode through wires.

[0024] As a further solution of the present invention: the discharge head comprises a needle-shaped electrode, and the needle-shaped electrode is connected to the metal positive electrode; a discharge space is formed between the needle-shaped electrode and the metal ground electrode, and an insulating medium is provided in the discharge space.

[0025] As a further solution of the present invention: the discharge head includes a ceramic sleeve, the ceramic sleeve is connected to the metal positive electrode, the metal positive electrode is sequentially connected to a needle electrode, a shunt, and a metal ground electrode, and is inserted into the ceramic sleeve for fixed connection.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The plasma vehicle-mounted air purifier of the present invention is safe and reliable, environmentally friendly and pollution-free, has high sterilization efficiency, and has high air purification efficiency.

[0028] The plasma vehicle-mounted air purifier of the present invention adopts plasma air purification technology. The air is drawn into the vehicle-mounted purifier through the internal fan. The air first passes through the filter to filter particulate matter, and then passes through the fan to enter the discharge head. When the air enters the discharge head, it causes the ultrasonic vibrating plate to vibrate and generate ultrasonic waves. Finally, after the air is ionized, sterilized and purified by the discharge head, the fresh air and plasma are concentratedly conducted to the outside with the ultrasonic waves, which produces an effective sterilization and purification effect on the surrounding air. The entire air purification process is safe and reliable, and the application of ultrasonic waves also improves the purification efficiency of plasma on the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0030] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0031] Figure 1 A schematic diagram of a plasma vehicle-mounted air purifier provided in an embodiment of the present application.

[0032] Figure 2 A cross-sectional view of a discharge head of a plasma vehicle-mounted air purifier provided in an embodiment of the present application.

[0033] Markings in the figure:

[0034] 1. Discharge head; 2. Circuit board; 3. Fan; 4. Filter;

[0035] 11. Fixed plate; 12. Ultrasonic vibration plate; 13. Ceramic sleeve; 14. Metal positive electrode; 15. Shunt; 16. Metal ground electrode; 17. Needle electrode; 18. Welding point; 19. Air duct outlet. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0037] Please refer to the attached Figures 1-2 , the embodiment of the present application provides a plasma vehicle-mounted air purifier, comprising:

[0038] Circuit board 2;

[0039] Components, which are fixedly connected to the circuit board 2 and electrically connected to the circuit board 2;

[0040] The fan 3 is disposed between the circuit board 2 and the discharge head 1 and is electrically connected to the circuit board 2;

[0041] The filter 4 is arranged at one side of the air inlet of the fan 3 and is used to filter particulate matter in the air;

[0042] The discharge head 1 is connected to the components and the fan 3 respectively. The air passes through the filter 4, the fan 3, and then the discharge head 1 to be converted into plasma. The plasma sterilization technology has a spectrum of sterilization characteristics for both bacteria and fungi, with high sterilization efficiency, no chemical residue, no drug resistance, and good diffusion and permeability. The sterilization is efficient and pollution-free, and is applicable to a wide range of sterilization objects. The high-energy electrons in the plasma can make the highly electronegative gas molecules (such as oxygen molecules and nitrogen molecules) carry electrons and become negative ions. It also has many good health effects on the life activities of the human body and other organisms.

[0043] The plasma vehicle air purifier of the present invention adopts plasma air purification technology. The air is drawn into the vehicle purifier through the internal fan 3. The air first passes through the filter 4 to filter particulate matter, and then passes through the fan 3 to enter the discharge head 1. When the air enters the discharge head 1, it causes the ultrasonic vibration sheet 12 to vibrate and generate ultrasonic waves. Finally, after the air is ionized, sterilized and purified by the discharge head 1, the fresh air and plasma are concentratedly conducted to the outside with the ultrasonic waves, which produces an effective sterilization and purification effect on the surrounding air. The entire air purification process is safe and reliable, and the application of ultrasonic waves also improves the purification efficiency of plasma on the air.

[0044] In a preferred embodiment of the present invention, the discharge head 1 comprises:

[0045] The fixing plate 11 is fixedly connected to the fan 3 and is used to fix the connection between the fan 3 and the metal positive electrode 14 to ensure that air is effectively transported to the front gas discharge cavity;

[0046] Ultrasonic vibration sheet 12;

[0047] Metal positive electrode 14;

[0048] The metal ground electrode 16, the fixing plate 11, the ultrasonic vibration plate 12, the metal positive electrode 14, and the metal ground electrode 16 are arranged in sequence, and threads are provided on the ceramic sleeve 13 and the metal positive electrode 14. The metal positive electrode 14 passes through the connecting fixing plate 11 and the ultrasonic vibration plate 12 in sequence, and extends into the ceramic sleeve 13, and is threadedly connected with the ceramic sleeve 13.

[0049] The ultrasonic vibration sheet 12 is disposed at the connection between the metal positive electrode 14 and the fan 3 .

[0050] In a preferred embodiment of the present invention, the ultrasonic vibration sheet 12 is made of elastic metal, in an annular shape, and has six metal sheets extending inward; the annular portion of the ultrasonic vibration sheet 12 is mounted on the fixed plate 11 through the metal positive electrode 14, and the discharge head 1 is provided with an air duct opening 19 at one end close to the fan 3, and the metal sheet is arranged on the air duct opening 19 and blocks the air duct opening 19; when the airflow generated by the fan 3 passes through the ultrasonic vibration sheet 12, it will cause the metal sheet to vibrate up and down, and when the frequency of the vibration exceeds 20kHz, ultrasonic waves will be generated. The air conducted by ultrasonic waves carries plasma after passing through the dielectric barrier discharge. Since ultrasonic waves have the characteristics of concentrated energy, good directionality and strong penetration, plasma vibrates in the air along with ultrasonic waves, which can play a more effective purification role in more spaces in the car.

[0051] In a preferred embodiment of the present invention, the components include a high-frequency transformer, which is electrically connected to the circuit board 2 and the discharge head 1 respectively; further, the input end of the high-frequency transformer is electrically connected to the circuit board 2, and the output end is welded to the metal positive electrode 14 and the metal ground electrode 16 through wires, and a welding point 18 is generated.

[0052] In a preferred embodiment of the present invention, the discharge head 1 includes a shunt 15 , which is connected to a metal positive electrode 14 , and the metal positive electrode 14 passes through the shunt 15 and is threadedly connected to a ceramic sleeve 13 .

[0053] In a preferred embodiment of the present invention, the discharge head 1 includes a needle electrode 17, which is connected to the metal positive electrode 14, and the metal positive electrode 14 passes through the needle electrode 17 and is threadedly connected to the ceramic sleeve 13; a discharge space is formed between the needle electrode 17 and the metal ground electrode 16, and an insulating medium is provided in the discharge space. When a sufficiently high AC voltage is applied between the needle electrode 17 and the metal ground electrode 16, the gas between the needle electrode 17 and the metal ground electrode 16 will be broken down to generate discharge, that is, dielectric barrier discharge is generated; when the equipment is running, air enters the discharge head 1, and is stabilized by the diverter 15, and the airflow is stably transported to the discharge head 1 for ionization discharge and converted into plasma to be blown to the environment for sterilization and sterilization, thereby purifying the ambient air. The ultrasonic vibrator works under the action of wind power, and quickly and centrally promotes the delivery of plasma to the air, thereby improving the purification efficiency.

[0054] In a preferred embodiment of the present invention, the discharge head 1 includes a ceramic sleeve 13, and the ceramic sleeve 13 and the metal positive electrode 14 are both provided with threads. The ceramic sleeve 13 is threadedly connected to the metal positive electrode 14, and the metal positive electrode 14 is sequentially connected to the needle electrode 17, the shunt 15, and the metal ground electrode 16, and is inserted into the ceramic sleeve 13 and threadedly connected to the ceramic sleeve 13; the ceramic sleeve 13 mainly plays the role of insulating the entire discharge head 1, and secondly provides a gas reaction chamber and a fixing function for the front-end metal ground electrode 16, the needle electrode 17, the shunt 15, and the metal positive electrode 14 combination.

[0055] The technical principle of the plasma vehicle-mounted air purifier of the present invention is as follows:

[0056] The air is drawn into the vehicle purifier through the internal fan 3. The air first passes through the filter 4 to filter the particles, and then passes through the fan 3 to enter the discharge head 1. When the air enters the discharge head 1, it causes the ultrasonic vibration sheet 12 to vibrate, which in turn causes the metal sheet to vibrate up and down. When the frequency of the vibration exceeds 20kHz, ultrasonic waves are generated, and the air is transmitted by the ultrasonic waves. Finally, after the air passes through the discharge head 1 for ionization, sterilization and purification, it passes through the dielectric barrier discharge and carries plasma. The fresh air and plasma are concentratedly transmitted to the outside with the ultrasonic waves, which has an effective sterilization and purification effect on the surrounding air. The entire air purification process is safe and reliable, and the application of ultrasonic waves also improves the purification efficiency of plasma on the air.

[0057] The plasma vehicle air purifier of the present invention adopts plasma air purification technology. The air is drawn into the vehicle purifier through the internal fan 3. The air first passes through the filter 4 to filter particulate matter, and then passes through the fan 3 to enter the discharge head 1. When the air enters the discharge head 1, it causes the ultrasonic vibration sheet 12 to vibrate and generate ultrasonic waves. Finally, after the air is ionized, sterilized and purified by the discharge head 1, the fresh air and plasma are concentratedly conducted to the outside with the ultrasonic waves, which produces an effective sterilization and purification effect on the surrounding air. The entire air purification process is safe and reliable, and the application of ultrasonic waves also improves the purification efficiency of plasma on the air.

[0058] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0059] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0060] Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A plasma vehicle-mounted air purifier, characterized in that: include: Circuit boards; Components, the components are connected to the circuit board and are electrically connected to the circuit board; A fan, the fan is electrically connected to the circuit board; Filter screen, which is located on one side of the fan; The discharge head is connected to the components and the fan respectively, and the air passes through the filter and the fan in sequence, and then passes through the discharge head to be converted into plasma; The fan is arranged between the circuit board and the discharge head; The discharge head comprises: Fixed plate; Ultrasonic vibrating sheet; Metal positive electrode; A metal ground electrode, wherein the fixing plate, the ultrasonic vibration sheet, the metal positive electrode and the metal ground electrode are arranged in sequence, and the metal positive electrode is connected to the fixing plate, the ultrasonic vibration sheet and the metal ground electrode in sequence; The ultrasonic vibration sheet is arranged at the connection between the metal positive electrode and the fan; The ultrasonic vibration sheet is made of elastic metal, in a ring shape, and has six metal sheets extending inward; the ring portion of the ultrasonic vibration sheet is mounted on a fixed plate through a metal positive electrode, and an air duct opening is provided at one end of the discharge head close to the fan, and the metal sheet is arranged on the air duct opening to block the air duct opening; The discharge head comprises a shunt, and the shunt is connected to the metal positive electrode; The discharge head comprises a needle-shaped electrode, the needle-shaped electrode is connected to the metal positive electrode; a discharge space is formed between the needle-shaped electrode and the metal ground electrode, and an insulating medium is provided in the discharge space; The discharge head comprises a ceramic sleeve, which is connected to the metal positive electrode, which is sequentially connected to a needle-shaped electrode, a shunt, and a metal ground electrode, and is inserted into the ceramic sleeve for fixed connection.

2. A plasma vehicle-mounted air purifier according to claim 1, characterized in that: The components include a high-frequency transformer, and the high-frequency transformer is electrically connected to the circuit board and the discharge head respectively.

3. The plasma vehicle-mounted air purifier according to claim 1, characterized in that: The filter is arranged at one side of the air inlet of the fan and is used to filter particulate matter in the air.

4. The plasma vehicle-mounted air purifier according to claim 1, characterized in that: The input end of the high-frequency transformer is electrically connected to the circuit board, and the output end is respectively connected to the metal positive electrode and the metal ground electrode through wires.

Citation Information

Patent Citations

  • Plasma air sterilizing and purifying device for air-conditioned train

    CN101920033A

  • Air purification device adopting cooperation of plasma, ultrasonic technology and catalysis

    CN105003981A