Air purification device and control method

Abstract

The present invention provides an air purification device and a control method, comprising a frame, wherein an air inlet is provided on one side of the frame and an air outlet is provided on the other side; a micro-electrostatic module, wherein the micro-electrostatic module comprises a filter element, wherein the filter element comprises a plurality of air channels for air circulation, and the filter element is located inside the frame and arranged close to the air outlet; a charging mechanism, wherein the charging mechanism is located on a side of the filter element away from the air outlet, and the charging mechanism is fixed inside the frame, and the charging mechanism comprises a plurality of electrode heads distributed on the surface of the filter element, so that the discharge area of the charging mechanism covers the entire filter element. The present invention can solve the technical problem of limited installation scenarios of air purification devices in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification, and in particular to an air purification device and a control method. Background Art

[0002] At present, the mainstream air purification technologies are divided into media filtration technology and electrostatic purification technology.

[0003] Media filtration technology is mature and relatively stable in operation, but it has high wind resistance, high fan energy consumption, is prone to breeding bacteria and viruses, cannot sterilize, produces odor, requires frequent replacement, generates a large amount of consumables, has high operating and maintenance costs, and is neither energy-saving nor environmentally friendly.

[0004] Electrostatic purification technology can remove particulate matter, sterilize, disinfect, and has low resistance and is repeatedly washable. However, due to its low purification efficiency, relatively high power consumption, susceptibility to ignition, high ozone emissions, poor safety, short service life, heavy weight, high maintenance costs, and lack of energy conservation and environmental protection, it has been unable to be widely adopted in the field of lightly polluted air purification and can only be applied in a few scenarios.

[0005] Micro-electrostatic technology is compatible with the advantages of media filtration technology and electrostatic purification technology, taking into account efficient purification and dust removal, sterilization and disinfection, as well as having the technical advantages of ultra-low power, low resistance, high humidity resistance, high safety, repeated cleaning, no consumables, and a service life of up to 10 years.

[0006] Currently, the market lacks an ultra-thin, ozone-free, low-cost, highly stable, repeatedly cleanable without consumables, highly adaptable, green, energy-saving and environmentally friendly electrical purification technology and product.

[0007] Based on this, the existing technology needs to be further developed. Summary of the Invention

[0008] The purpose of the present invention is to overcome the above technical deficiencies and provide an air purification device and a control method to solve the technical problem of limited installation scenarios of air purification devices in related technologies.

[0009] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0010] In the first aspect, the present invention provides an air purification device, comprising: a frame, wherein an air inlet is provided on one side of the frame and an air outlet is provided on the other side, and the frame is used to accommodate a micro-electrostatic module and a charging mechanism; the micro-electrostatic module includes a filter element, and the filter element includes a plurality of air channels for air circulation, and the filter element is arranged close to the air outlet; the charging mechanism is located on the side of the filter element away from the air outlet, and the charging mechanism includes a plurality of electrode heads distributed on the surface of the filter element so that the discharge area of the charging mechanism covers the entire filter element.

[0011] The present technical solution is further configured such that the charging mechanism further includes: a first receiving groove, the first receiving groove being inside the frame; an electrode body, the electrode body being arranged along the length direction of the first receiving groove, the electrode head passing through the groove wall of the first receiving groove and being connected to the electrode body.

[0012] The technical solution is further configured as follows: a plurality of first accommodating grooves are provided, the plurality of first accommodating grooves are arranged at intervals, and the electrode bodies located in different first accommodating grooves are connected end to end in sequence.

[0013] The present technical solution is further configured such that the arrangement direction of the electrode head is parallel to the plane where the frame is located, the electrode heads are connected to both sides of the first accommodating groove, and the distance between two adjacent electrode heads located on the same side of the same first accommodating groove is equal to the distance between the two adjacent first accommodating grooves.

[0014] The technical solution is further configured such that the electrode heads located on both sides of the same first receiving groove are arranged side by side to form a plurality of electrode head pairs, and the electrode head pairs located in different first receiving grooves are arranged alternately or in a matrix.

[0015] The technical solution is further configured such that the electrode heads located on both sides of the same first receiving groove are arranged in a staggered manner.

[0016] The technical solution is further configured such that the charging mechanism further includes a conductive discharge plate, which is located on a side of the electrode head away from the filter element, and is provided with a discharge conductive hole that matches the electrode head.

[0017] The present technical solution is further configured such that the first accommodating groove is detachably connected to the interior of the frame, and both ends of the first accommodating groove are provided with notches matching the frame. When the first accommodating groove is installed inside the frame, the first accommodating groove does not extend beyond the outer surface of the frame.

[0018] The technical solution is further configured as follows: the frame has a first frame and a second frame, the first frame and the second frame are arranged opposite to each other, and the first frame and the second frame are complementary structures that can be spliced together.

[0019] The technical solution is further configured as follows: a power supply compartment is provided on the frame, a high-voltage power supply is provided in the power supply compartment, and the high-voltage power supply is electrically connected to the charging mechanism and the filter element.

[0020] The present technical solution is further configured such that the high-voltage power supply is connected to an external power supply through a power adapter, one end of the power supply compartment is provided with a power adapter for transferring power, the power adapter is provided with a magnetic female head for providing an electrical connection for the high-voltage power supply, and the power adapter is connected with a magnetic male head that matches the magnetic female head.

[0021] The technical solution is further configured such that the filter element is provided with a fixing groove, the frame and the filter element are connected via a fixing component, the fixing component is embedded in the fixing groove, and the fixing component is connected to both the frame and the filter element to fix the filter element.

[0022] The technical solution is further configured such that the fixing component includes a boss integrally formed with the frame, the boss is extended in a direction close to the filter element, and the boss is embedded in the fixing groove.

[0023] The present technical solution is further configured such that the filter element includes a plurality of stacked dust collecting sheets and a plurality of isolating members arranged between the dust collecting sheets, the air channel is formed between the dust collecting sheets and the isolating members, the dust collecting sheets are wrapped with conductive material, the conductive material includes an avoidance groove, and the avoidance groove is arranged corresponding to the fixed groove.

[0024] In a second aspect, the present invention provides a control method for controlling the above-mentioned air purification device. The technical solution is further configured to include:

[0025] The high-voltage power supply obtains the wind conditions and determines whether the micro-static device needs to be powered;

[0026] When power is needed, the switch SB and the fuse FU enter the power transformer TR, which is then rectified by the diodes VD1~VD4 and filtered by the capacitor C1. The voltage then passes through the primary coil N1 of the step-up transformer TU, the potentiometer RP, and the resistor R to provide a bias voltage to the base of VT. At the same time, the collector of VT is powered through N1 and N2, and VT starts to conduct.

[0027] The oscillation of TU further strengthens the current of N1 and the current of VT base, causing VT to switch from saturated conduction state to off state, thereby causing the oscillation circuit to turn on and off repeatedly;

[0028] The internal single chip microcomputer of the high voltage power supply performs logical judgment based on the monitored high voltage voltage and current to determine whether to terminate the high voltage output.

[0029] Beneficial effects:

[0030] 1. The micro-electrostatic module and charging mechanism are integrated into the same housing to reduce the thickness of the air purifier. This allows for a higher ion concentration per unit volume, saving installation space and expanding its application range. This is particularly important in purification scenarios where the installation dimensions are very limited in width, thereby better maximizing the overall performance of the air purifier.

[0031] 2. Several electrode heads are evenly distributed on the surface of the filter element, making the discharge more complete, without charging blind spots, and the particle charging uniformity is better, resulting in better charging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Schematic diagram of an air purification device used in an embodiment of the present invention;

[0033] Figure 2 is a schematic diagram of a charging mechanism used in an embodiment of the present invention;

[0034] Figure 3 In one embodiment of the present invention Figure 2 A partial enlarged view of the middle part;

[0035] Figure 4 In another embodiment of the present invention Figure 2 A partial enlarged view of the middle part;

[0036] Figure 5 This is a schematic diagram of the arrangement of electrode heads according to an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of another arrangement of electrode heads according to an embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of another arrangement of electrode heads according to an embodiment of the present invention;

[0039] Figure 8 is a schematic diagram of the first receiving tank of the present invention;

[0040] Figure 9 is a schematic diagram of an air purification device used in another embodiment of the present invention;

[0041] Figure 10 is a schematic diagram of an air purification device used in another embodiment of the present invention (the filter element is not shown);

[0042] Figure 11 is a partial schematic diagram of a micro-electrostatic module used in an embodiment of the present invention;

[0043] Figure 12 Schematic diagram of the assembly of the frame and micro-electrostatic module embodiment 1 used in the embodiment of the present invention;

[0044] Figure 13 Schematic diagram of the assembly of the frame and micro-electrostatic module embodiment 2 used in the embodiment of the present invention;

[0045] Figure 14 Schematic diagram of the structure of the dust collecting sheet used in an embodiment of the present invention;

[0046] Figure 15is a schematic structural diagram of a first fixing component used in an embodiment of the present invention;

[0047] Figure 16 Schematic diagram of the splicing state of the air purification device used in the embodiment of the present invention;

[0048] Figure 17 yes Figure 16 GG cross-sectional view in;

[0049] Figure 18 yes Figure 16 HH section view in;

[0050] Figure 19 is a flow chart of a control method adopted in an embodiment of the present invention.

[0051] In the attached figure:

[0052] 1. Filter element; 10. Air channel; 11. First dust collecting surface; 12. First side wall; 13. Second dust collecting surface; 2. Fixing groove; 21. First fixing groove; 211. First connecting surface; 212. Second connecting surface; 22. Second fixing groove; 3. Frame; 31. Frame; 311. First frame; 3111. First splicing groove; 312. Second frame; 3121. Second splicing groove; 313. Third frame; 3131. Power supply compartment; 314. Fourth frame; 32. Accommodating space; 33. Connecting component; 34. Plug; 4. Fixing component; 41. Boss; 411. First fixing component; 412. Second fixing component; 42. Insulating glue; 100. Dust collecting sheet; 101. Isolation piece; 103. Conductive material; 104. Avoidance groove. 5. Charging mechanism; 51. First receiving slot; 511. Notch; 52. Electrode body; 53. Wire; 54. Electrode head; 55. Second receiving slot; 56. Discharge conductor; 561. Discharge conductive hole. 6. Adapter; 61. Magnetic female connector; 62. Indicator light 62; 7. Power adapter; 71. Magnetic male connector; 72. Power cord. DETAILED DESCRIPTION

[0053] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0054] According to an embodiment of the present invention, an air purification device is provided. Figures 1 to 3, including: a frame 3, wherein the frame 3 is provided with an air inlet on one side and an air outlet on the other side; a micro-electrostatic module, wherein the micro-electrostatic module includes a filter element 1, the filter element 1 includes a plurality of air channels 10 for air circulation, and the filter element 1 is located inside the frame 3 and is arranged close to the air outlet; a charging mechanism 5, wherein the charging mechanism 5 is located on the side of the filter element 1 away from the air outlet, and the charging mechanism 5 is fixed inside the frame 3, and the charging mechanism 5 includes a plurality of electrode heads 54 distributed on the surface of the filter element 1, so that the discharge area of the charging mechanism 5 covers the entire filter element 1.

[0055] It should be noted that the micro-electrostatic module and the charging mechanism 5 are integrated into the same frame 3 to reduce the thickness of the air purification device, and the ion concentration released per unit volume is higher, thereby saving the installation space of the air purification device and having a wider range of applications, especially in purification scenarios where the installation size is very limited in the width direction, and can better exert the overall performance of the air purification device; in addition, several electrode heads 54 are distributed on the surface of the filter element 1, so that the discharge is more sufficient, there is no charging blind spot, the particle charging uniformity is better, and the charging effect is better.

[0056] In the air purification device of this embodiment, the charging mechanism 5 also includes: a first receiving groove 51, the first receiving groove 51 is inside the frame 3; an electrode body, the electrode body is arranged along the length direction of the first receiving groove 51, the electrode head 54 passes through the groove wall of the first receiving groove 51 and is connected to the electrode body, the arrangement direction of the electrode head 54 and the angle between it and the plane where the frame 3 is located does not exceed 90 degrees, and a number of the electrode heads 54 are arranged at intervals along the electrode body.

[0057] It should be noted that, on the one hand, since the first accommodating groove 51 for accommodating the electrode body 52 is arranged inside the frame 3, the angle between the arrangement direction of the electrode head 54 and the plane of the frame 3 is less than 90 degrees, and the electrode head 54 does not exceed the outer surface of the frame 3, which reduces the overall thickness of the charging mechanism 5, thereby further saving the installation space of the air purification device. Moreover, the electrode head 54 is not arranged to face the wind, and it is not easy to contact or bump the tip of the electrode head 54 during production, transportation, installation and maintenance. On the other hand, a new charging and discharging form is adopted, and the electrode heads 54 are evenly arranged, so that the discharge is more sufficient, there is no charging blind spot, the particle charging uniformity is better, and the charging effect is better.

[0058] Specifically, the electrode head 54 is a carbon fiber brush, or a bundle of metal wires, or a metal tip. The carbon fiber brush includes a plurality of bundled carbon fiber wires and an insulating tube, and is electrically connected to the electrode body 52 through a conductive metal wire.

[0059] The first receiving groove 51 is made of insulating material, and the electrode body 52 and the connector for connecting the electrode head 54 and the electrode body 52 are sealed in the first receiving groove 51 by insulating sealant.

[0060] In the air purification device of this embodiment, a plurality of first accommodating slots 51 are provided, and the plurality of first accommodating slots 51 are arranged at intervals, and the electrode bodies 52 located in different first accommodating slots 51 are connected end to end in sequence to form an S-bend shape.

[0061] Specifically, the plurality of electrode bodies 52 located in different first containing grooves 51 may be electrically connected via a wire 53 or in other ways.

[0062] In the air purification device of this embodiment, please refer to Figure 4 A second accommodating groove 55 for accommodating the electrode head 54 is fixedly provided on the outer side of the groove wall of the first accommodating groove 51. The second accommodating groove 55 is provided in a one-to-one correspondence with the electrode head 54. The second accommodating groove 55 is used to support the electrode head 54 to prevent the electrode head 54 from being deflected due to collision.

[0063] In the charging device of this embodiment, the angle formed by the arrangement direction of the electrode head 54 and the plane where the frame 3 is located is greater than or equal to 0 degree and less than or equal to 60 degrees, so as to further reduce the thickness of the charging device. The electrode heads 54 are connected to both sides of the first receiving groove 51, and the distance between two adjacent electrode heads 54 located on the same side of the same first receiving groove 51 is equal to the distance between the two adjacent first receiving grooves 51. When the electrode head 54 is made of a hard material such as a metal tip, the electrode head 54 does not extend beyond the outer surface of the frame 3 to reduce the installation space occupied by the charging device. When the electrode head 54 is made of a flexible material such as a carbon fiber brush, the electrode head 54 can extend beyond the outer surface of the frame 3. Preferably, the length of the electrode head 54 extending beyond the outer surface of the frame 3 does not exceed 50% of the total length of the flexible material. The flexibility of the flexible material allows the charging device to pass through the restricted installation area smoothly when installed in a confined space. After installation, the flexible material has its own recoverability, and the front end of the electrode head 54 is an open space that is not less than the thickness of the frame 3. The flexible material can automatically return to its original shape, thereby increasing the angle between the arrangement direction of the electrode head 54 and the plane of the frame 3 as much as possible, and the flexible material is less likely to cause accidental injury to the staff. From the charging principle, the larger the angle, the better the charging effect.

[0064] It is worth mentioning that when the angle between the arrangement direction of the electrode head 54 and the plane where the frame 3 is located is greater than 60 degrees, it can be used in scenarios with a larger installation space. For example, when the arrangement direction of the electrode head 54 is perpendicular to the plane where the frame 3 is located, a flexible electrode head material, such as a carbon fiber brush, is used. The electrode head 54 can extend beyond the outer surface of the frame 3 by a certain distance. Preferably, the length of the electrode head 54 extending beyond the outer surface of the frame 3 does not exceed 50% of the total length of the flexible material. The flexible characteristics of the carbon fiber brush can be used to smoothly pass through the restricted installation area. After installation, the flexible material can automatically return to its original state due to its own recoverability. It can also improve the utilization rate of the installation space and meet the same ionization effect. The ionization device can be made thinner and have a wider range of applications.

[0065] In the air purification device of this embodiment, please refer to Figure 5 The angle formed between the arrangement direction of the electrode head 4 and the plane of the frame 3 is 0 degrees, that is, the arrangement direction of the electrode head 4 is parallel to the plane of the frame 1, which makes production and processing more convenient, and the charging effect satisfies the use of the charging device. The electrode heads 54 are connected to both sides of the first receiving groove 51, and the distance between two adjacent electrode heads 54 on the same side of the same first receiving groove 51 is equal to the distance between two adjacent first receiving grooves 51; the electrode heads 54 on both sides of the same first receiving groove 51 are arranged side by side to form a plurality of electrode head pairs, and the electrode head pairs located in different first receiving grooves 51 are arranged in a matrix. This is the arrangement method 1 of the electrode heads 54.

[0066] In the air purification device of this embodiment, please refer to Figure 6 The arrangement direction of the electrode heads 4 forms an angle of 0 degrees with the plane of the frame 3. The electrode heads 54 are connected to both sides of the first receiving slot 51. The distance between two adjacent electrode heads 54 on the same side of the same first receiving slot 51 is equal to the distance between two adjacent first receiving slots 51. The electrode heads 54 on both sides of the same first receiving slot 51 are arranged side by side to form several electrode head pairs, and the electrode head pairs in different first receiving slots 51 are staggered. This is electrode head 54 arrangement method 2.

[0067] It should be noted that the electrode heads are arranged in a staggered manner, and the discharge areas formed by the electrode heads 54 located on opposite sides of two adjacent first receiving grooves 51 partially overlap, and can effectively ensure that the discharge area completely covers the entire frame 3.

[0068] In the air purification device of this embodiment, please refer to Figure 7The angle formed between the arrangement direction of the electrode heads 4 and the plane of the frame 3 is 0 degrees. The electrode heads 54 are connected to both sides of the first receiving slot 51. The distance between two adjacent electrode heads 54 on the same side of the same first receiving slot 51 is equal to the distance between two adjacent first receiving slots 51. The electrode heads 54 on both sides of the same first receiving slot 51 are staggered, and the electrode heads 54 on several first receiving slots 51 are arranged in the same manner. This is electrode head 54 arrangement method 3.

[0069] To verify the performance differences between the three electrode head 54 arrangements, comparative tests were conducted in a standard laboratory. Using the same micro-electrostatic module (a module uses dielectric material wrapped around a conductive material to form electrode plates, which capture charged particles in the air using the strong electric field between the electrode plates), and paired with three charging mechanisms 5, the PM2.5 purification efficiency of the carbon fiber brush electrode head 54 was compared under the same operating environment and wind speed. To reduce test error, the PM2.5 purification efficiency was compared by taking the average of three consecutive test data sets.

[0070]

[0071] By comparing the test data, it can be seen that the three charging mechanisms 5 equipped with the same micro-electrostatic module have higher PM2.5 purification efficiency, which can explain that the charging mechanisms 5 in the three electrode head 54 forms have good charging effects, and the charging effects are: arrangement method 2>arrangement method 3>arrangement method 1.

[0072] Preferably, in order to fully utilize the discharge area of the electrode head 54 , several first accommodating grooves 51 are arranged in parallel and equidistantly, and the distance between the first accommodating grooves 51 located on the side and the frame 3 is no more than 1 / 2 of the distance between two adjacent first accommodating grooves 51 .

[0073] In the air purification device of this embodiment, please refer to Figure 8 The first accommodating groove 51 is detachably connected to the interior of the frame 3, and notches 511 matching the frame 3 are provided at both ends of the first accommodating groove 51. When the first accommodating groove 51 is installed inside the frame 3, the first accommodating groove 51 does not exceed the outer surface of the frame 3.

[0074] It should be noted that notches 511 matching the frame 3 are provided at both ends of the first receiving groove 51, so that the two ends of the first receiving groove 51 are just embedded in the frame 3. The frame 3 at the position of the notch 511 limits the first receiving groove 51, thereby increasing the stability of the first receiving groove 51. The depth of the notch 511 is less than or equal to the wall thickness of the frame 3, ensuring that the first receiving groove 51 will not exceed the plane of the frame 31 after installation, thereby further saving the installation space of the charging mechanism 5.

[0075] Preferably, reinforcing ribs are added between adjacent first accommodating grooves 51 . When the charging mechanism 5 has a large area, the reinforcing ribs between the first accommodating grooves 51 increase the structural strength and stability.

[0076] In the air purification device of this embodiment, please refer to Figure 10 The frame 3 is provided with a discharge conductor 56 , and the discharge conductor 56 is provided with a discharge conductive hole 561 that matches the electrode head 54 .

[0077] Specifically, the discharge conductor 56 is made of metal material or non-metal material, and a plurality of discharge conductive holes 561 are provided. The plurality of discharge conductive holes 561 are in a rectangular array. The discharge conductive holes 561 are circular holes, elliptical holes, polygonal holes, rectangular holes or nearly circular holes with arc angles.

[0078] Preferably, each discharge conductive hole 561 is rectangular, and each of the four corners of each discharge conductive hole 561 is rounded. Rectangular rounded corners maximize coverage, minimize blind spots, and ensure full coverage of the discharge conductor 56 through-hole area, resulting in uniform wind speed and reduced ventilation resistance.

[0079] In the air purification device of this embodiment, please refer to Figure 1 The frame 3 includes a plurality of frames 31 corresponding to the filter element 1 , and the plurality of frames 31 are connected end to end to enclose a receiving space for receiving the filter element 1 and the charging mechanism 5 .

[0080] Specifically, see Figures 16 to 18 The frame body 3 includes a first frame 311, a second frame 312, a third frame 313 and a fourth frame 314 connected in sequence. The first frame 311 and the second frame 312 are arranged opposite to each other. The third frame and the fourth frame are arranged opposite to each other. The first frame 311 and the second frame 312 are complementary structures that can be spliced together. A first splicing groove 3111 is provided on the side of the first frame 311 away from the second frame 312, and a second splicing groove 3121 is provided on the side of the second frame 312 away from the first frame 311. The opening directions of the first splicing groove 3111 and the second splicing groove 3121 are opposite.

[0081] Through the above-mentioned arrangement, the function of infinite splicing of the air purification device in this embodiment is realized, and a single module can be engaged with each other through the first splicing groove 3111 and the second splicing groove 3121 of the adjacent module, thereby realizing the combination between modules and realizing infinite splicing of the air purification device, thereby improving the assembly efficiency and use efficiency of the filter element 1, and making the filter element 11 easy to maintain and replace. During actual use, the card slot can be installed from the side of the air duct or air duct of the application equipment for pull-out installation, and it can also be installed through the front of the filter section of the application equipment.

[0082] See also Figure 11 On the tail section of the filter element 1 where no further splicing of the filter element 1 is required, plugs 34 are inserted into the first splicing groove 3111 and the second splicing groove 3121 to fill the gaps, thereby avoiding breakage of the buckles in the splicing structure and improving the overall aesthetics of the filter element 1.

[0083] Preferably, partitions are provided inside the third frame and the fourth frame to separate the accommodating space into two parts, one part for accommodating the filter element 1 and the other part for accommodating the charging mechanism.

[0084] In the air purification device of this embodiment, the electrode body 52 is connected to a high-voltage power supply, which is a built-in high-voltage power supply or an external high-voltage power supply.

[0085] Preferably, see Figure 9 , a built-in high-voltage power supply is used, and a power supply compartment 3131 is added to one side of the frame 3. Specifically, the power supply compartment 3131 is located on the third frame 313 or the fourth frame 314, and the high-voltage power supply is placed in the power supply compartment 3131. The high-voltage power supply is electrically connected to the charging mechanism 5 and the filter element 1; the built-in power supply makes electrical connection simpler and subsequent maintenance operations are simple.

[0086] In the air purification device of this embodiment, the high-voltage power supply is connected to the external power supply through a power adapter 7. One end of the power supply compartment 3131 is provided with a power adapter 6 for transferring power. The power adapter 6 is provided with a magnetic female head 61 for providing an electrical connection for the high-voltage power supply. The power adapter 7 is connected to a magnetic male head 62 that matches the magnetic female head 61.

[0087] It should be noted that the magnetic male head 62 has a contact spring pin, and the magnetic male head 62 and the magnetic female head 61 respectively have N / S pole magnetism, so that the magnetic male head 62 and the magnetic female head 61 can be docked reliably and stably, and maintenance and disassembly are convenient.

[0088] Specifically, see Figure 9A clamping ring is also fixed on the power adapter 6, and the power cord 72 used to connect the power adapter 7 and the magnetic male connector 62 can be fixed by the clamping ring. Under the fixing action of the clamping ring, the power cord 72 can be bent in multiple directions to take into account the installation of the air purification device in the pipeline.

[0089] Preferably, the power adapter 6 is also provided with an indicator light 62 and a light guide column. The charged ends of the indicator light 62 and the light guide column are pre-buried in the power supply compartment. Epoxy glue is poured into the power supply compartment to make the entire power supply compartment sealed and waterproof, so that the power supply can be dust-proof and moisture-proof.

[0090] In the air purification device of this embodiment, please refer to Figures 11 to 15 The filter element 1 is provided with a fixing groove 2, the frame 31 is connected to the filter element 1 through a fixing component, the fixing component is embedded in the fixing groove, and the fixing component is connected to both the frame and the filter element to fix the filter element.

[0091] By setting a fixing component 4, embedding the fixing component 4 in the fixing groove 2, and connecting with the frame 3 and the filter element 1 respectively, the filter element 1 is fixed on the frame 3 to complete the installation of the filter element 1. By opening the fixing groove 2 on the filter element 1 and forming a step structure on the frame 3, the step structure and the fixing groove 2 are engaged and fixed with each other to achieve the fixation of the filter element 1, reducing the dust holding surface required for fixing the filter element 1, reducing the connection area between the frame 31 and the filter element 1, reducing the overall thickness of the outer frame, realizing the structural design of the ultra-thin frame, improving the dust holding capacity of the micro-electrostatic module, reducing the use cost of the filter element, improving the purification efficiency, and solving the technical problem in the related art that the micro-electrostatic module loses purification efficiency and dust holding capacity due to the size of the outer frame occupying the thickness direction.

[0092] The micro-electrostatic module in this embodiment improves the dust holding capacity and purification efficiency of the micro-electrostatic module, reduces the use cost of the filter element, and solves the sealing problem of the micro-electrostatic module by adopting a thermal cutting process, ensuring that the ultra-thin micro-electrostatic module of this embodiment has a more ideal waterproof effect.

[0093] In the air purification device of this embodiment, please refer to Figure 12 The fixing component 4 includes a boss 41 integrally formed with the frame 31. The boss 41 extends in a direction close to the filter element 1 and is embedded in the fixing groove 2. By providing the boss 41 and embedding it in the fixing groove 2, the boss 41 and the fixing groove 2 engage with each other to increase the supporting force of the fixing component 4 on the filter element 1. The boss 41 stops and fixes the filter element 1, reducing the dust holding surface of the filter element 1 occupied by the frame 31 and reducing the thickness of the frame.

[0094] Optionally, the boss 41 is an L-shaped boss.

[0095] In the air purification device of this embodiment, please refer to Figures 12 to 15 The fixing groove 2 includes a first connecting surface 211 and a second connecting surface 212 connected to each other.

[0096] Specifically, the fixing groove 2 is opened on the side wall of the filter element 1 to increase the wrapping of the frame 3 and the fixing component 4 on the filter element 1 and improve the fixing strength of the filter element 1.

[0097] It is understandable that the fixing groove 2 can also be provided on the end face of the filter element 1 and spaced apart from the first receiving groove 51 on the end face. In this case, the dust holding surface of the filter element 1 can be maximized.

[0098] Specifically, the fixing groove 2 is an L-shaped structure that is interlocked and fixed with the boss 41. The L-shaped fixing groove 2 can reduce the area of the fixing groove 2 and increase the dust holding surface of the filter element 1. In addition, the boss 41 fits closely with the L-shaped fixing groove 2, reducing the possibility of deformation of the frame 31 and improving the structural strength of the frame 31.

[0099] In the air purification device of this embodiment, the second connecting surface 212 is an arc-shaped surface.

[0100] It should be noted that by setting the second connecting surface 212 as an arc-shaped surface, after the frame 3 and the filter element 1 are assembled, there is a gap in the fixing groove 2 in addition to the boss 41. At this time, insulating glue can be injected to increase the stability of the assembly and at the same time increase the sealing effect of the filter element 1 to prevent leakage and discharge of the conductive material in the filter element 1.

[0101] In the air purification device of this embodiment, the fixing groove 2 includes a first connecting surface 211 , and the first connecting surface 211 is an inclined surface.

[0102] Specifically, the fixing groove 2 is opened on the side wall of the filter element 1. By adopting a single-sided fixing groove 2, the cross-sectional area and capacity of the fixing groove 2 can be reduced, the filling amount of insulating glue can be reduced, and the size of the avoidance groove 104 can be reduced, thereby increasing the available area of the conductive material 103.

[0103] Preferably, the first connecting surface 211 is an arcuate surface. By setting the first connecting surface 211 as an arcuate surface, compared with the first connecting surface 211 with an inclined surface structure, when the insulating glue is filled in the fixing groove 2, the adhesion of the insulating glue can be increased, thereby increasing the assembly strength of the filter element 1 and the frame 3.

[0104] In the air purification device of this embodiment, the filter element 1 includes a first dust collecting surface 11 and a second dust collecting surface 13 arranged opposite to each other, and a plurality of air channels 10 for air circulation are provided between the first dust collecting surface 11 and the second dust collecting surface 13; the first dust collecting surface 11 is provided to protrude from the frame 31 along the extension direction of the air channel 10; and / or the second dust collecting surface 13 is provided to protrude from the frame 31 along the extension direction of the air channel 10.

[0105] It can be understood that by adopting the filter element 1 assembly structure of the present invention, the thickness of the filter element 1 can be adaptively thickened or a frame with a smaller width specification can be used to stably realize the assembly of the filter element 1. The increase in the thickness of the filter element 1 can increase the length of the air channel, thereby increasing the dust collection efficiency of the filter element 1.

[0106] In some embodiments, a structural design in which the thickness of the filter element 1 is increased on one side may be adopted, and the first dust collecting surface 11 or the second dust collecting surface 13 may be thickened on one side.

[0107] In some embodiments, a structural design in which both sides of the filter element 1 are thickened can be simultaneously adopted, and both the first dust collecting surface 11 and the second dust collecting surface 13 are thickened.

[0108] In the air purification device of this embodiment, the fixing member 4 includes an insulating adhesive 42, which is filled between the frame 31 and the fixing groove 2. Filling the fixing groove 2 with the insulating adhesive 42 ensures a stable connection between the frame 31 and the fixing groove 2, and also acts as a seal, preventing the fixing groove 2 and the edge of the conductive material 103 from being too thin or too close, thereby improving electrical safety.

[0109] In the ultra-thin micro-electrostatic module of this embodiment, the filter element 1 includes a plurality of stacked dust collecting sheets 100 and a plurality of isolating members 101 arranged between the dust collecting sheets 100. An air channel 10 is formed between the dust collecting sheets 100 and the isolating members 101. The dust collecting sheets 100 are wrapped with conductive material 103. The conductive material 103 includes an avoidance groove 104. The avoidance groove 104 is arranged corresponding to the fixed groove 2. The conductive material 103 is electrically connected to the high-voltage power supply through the electrode body 52.

[0110] It should be noted that the micro-electrostatic module forms an electrode plate by wrapping the conductive material 103 with a dielectric material, and uses the strong electric field formed inside the electrode plate after the electrode plate is energized to capture charged particles in the air.

[0111] Specifically, the electrode body 52 is in contact with the conductive material 103 in the dust collecting sheet 100 to achieve electrical connection.

[0112] Specifically, after the fixed groove 2 is opened as a whole on the filter element 1, in order to prevent the fixed groove 2 from being too close to the conductive material inside the dust collecting sheet and to prevent discharge problems between the conductive material and the external conductor, the conductive material is adaptively shrunk and an avoidance groove 104 is opened on the conductive material 103 to avoid the fixed groove 2. The shape of the avoidance groove 104 is adapted to the shape of the fixed groove 2 to ensure that the distance between the edge of the conductive material 103 and the edge of the dust collecting sheet meets the electrical safety distance, thereby ensuring electrical safety. At the same time, in order to ensure the purification effect of the micro-electrostatic module, the larger the area of the conductive material 103, the greater the purification effect and dust holding capacity of the micro-electrostatic module. Therefore, the distance between the edge of the avoidance groove 104 and the edge of the dust collecting sheet is ≥ the distance between the conductive material 103 and the edge of the dust collecting sheet at the non-avoidance groove 104, thereby ensuring electrical safety and maximizing the purification effect and dust holding capacity.

[0113] In the ultra-thin micro-electrostatic module of this embodiment, please refer to Figure 16 The frame 3 includes a plurality of connecting parts 33, which are respectively connected to two adjacent frames 31 so that the multiple frames 31 are connected end to end. Specifically, the connecting parts 33 are corner tenons, and the assembly of the multiple frames 31 is completed by the multiple connecting parts 33.

[0114] In the ultra-thin micro-electrostatic module of this embodiment, the fixing components 4 include multiple ones, and the multiple fixing components 4 are arranged in a one-to-one correspondence with the multiple frames 31; and the fixing slots 2 are correspondingly provided in multiple ones.

[0115] It can be understood that each frame 31 is provided with a fixing component 4, and the filter element 1 is provided with a corresponding fixing groove 2. The above arrangement improves the stability of the assembly between the filter element 1 and the frame 3.

[0116] In the ultra-thin micro-electrostatic module of this embodiment, please refer to Figure 15 The fixing part 4 includes a first fixing part 411 and a second fixing part 412 arranged at intervals, the first fixing part 411 is connected to one end of the frame 31, and the second fixing part 412 is connected to the end of the frame 31 away from the first fixing part 411; the fixing groove 2 includes a first fixing groove 21 and a second fixing groove 22 arranged at intervals, the first fixing groove 21 is arranged corresponding to the first fixing part 411, and the second fixing groove 22 is arranged corresponding to the second fixing part 412.

[0117] Specifically, the assembly structure of this embodiment is provided on both the first dust collecting surface 11 and the second dust collecting surface 13 of the filter element 1. The above arrangement improves the stability of the assembly between the filter element 1 and the frame 3.

[0118] It should be noted that the first fixing member 411 and the second fixing member 412 as well as the first fixing groove 21 and the second fixing groove 22 may adopt a symmetrical structural design or an asymmetrical structural design.

[0119] In the ultra-thin micro-electrostatic module of this embodiment, please refer to Figure 15 The fixing groove 2 includes a first fixing groove 21 opened on the leeward side of the filter element 1 , and the boss 41 is embedded in the first fixing groove 21 to support the filter element 1 .

[0120] Specifically, the air first passes through the windward side of the ultra-thin micro-electrostatic module and then passes through the leeward side. In order to increase the structural strength of the filter element 1, the fixing component adopts a boss structural design, that is, a first fixing groove 21 is opened on the leeward side of the filter element 1, and the boss is engaged with the first fixing groove 21. The wind pressure pushes the filter element 1 on the boss structure, which plays a good supporting role, reduces the use of frame materials, reduces the difficulty of assembly, and at the same time prevents the filter element 1 from being deformed and detached from the frame 3, thereby ensuring the assembly strength and stability of the filter element 1.

[0121] In the ultra-thin micro-electrostatic module of this embodiment, please refer to Figure 15 The fixing part 4 includes a first fixing part 411 and a second fixing part 412 arranged at intervals, the first fixing part 411 is connected to one end of the frame 31, and the second fixing part 412 is connected to the end of the frame 31 away from the first fixing part 411; the fixing groove 2 includes a first fixing groove 21 and a second fixing groove 22 arranged at intervals, the first fixing groove 21 is arranged corresponding to the first fixing part 411, and the second fixing groove 22 is arranged corresponding to the second fixing part 412.

[0122] Example 1

[0123] See also Figure 12 The first fixing part 411 and the second fixing part 412 and the first fixing groove 21 and the second fixing groove 22 adopt a symmetrical structural design. The first fixing part 411 and the second fixing part 412 are boss structures. The first fixing groove 21 and the second fixing groove 22 include a first connecting surface 211 and a second connecting surface 212. The second connecting surface 212 is an arc-shaped surface.

[0124] It is understandable that when the above embodiment is adopted, the fixing groove can be further filled with insulating glue to increase the fixing strength and sealing of the filter element 1. In this case, the supporting strength of the frame 3 for the filter element 1 is higher.

[0125] Example 2

[0126] See also Figure 13 The first fixing part 411 and the second fixing part 412 adopt an asymmetric structural design, and the first fixing groove 21 and the second fixing groove 22 adopt a symmetrical structural design. The first fixing part 411 is insulating glue, and the second fixing part 412 is a boss structure. The first fixing groove 21 and the second fixing groove 22 include a first connecting surface 211 and a second connecting surface 212, and the second connecting surface 212 is an arc surface.

[0127] It can be understood that when the above embodiment is adopted, the structure in which the boss and the fixing groove are engaged on the leeward side can play a good supporting role.

[0128] It is understandable that when the above embodiment is adopted, the second fixing groove 22 can also be further filled with insulating glue. Both fixing grooves are filled with insulating glue, which can increase the sealing performance of the filter element 1.

[0129] In a second aspect, the present invention provides a control method, see Figures 18 and 19 , used to control the above-mentioned air purification device, including:

[0130] The high-voltage power supply obtains the wind conditions and determines whether the micro-static device needs to be powered;

[0131] When power is needed, the switch SB and the fuse FU enter the power transformer TR, which is then rectified by the diodes VD1~VD4 and filtered by the capacitor C1. The voltage then passes through the primary coil N1 of the step-up transformer TU, the potentiometer RP, and the resistor R to provide a bias voltage to the base of VT. At the same time, the collector of VT is powered through N1 and N2, and VT starts to conduct.

[0132] The oscillation of TU further strengthens the current of N1 and the current of VT base, causing VT to switch from saturated conduction state to off state, thereby causing the oscillation circuit to turn on and off repeatedly;

[0133] The internal single chip microcomputer of the high voltage power supply performs logical judgment based on the monitored high voltage voltage and current to determine whether to terminate the high voltage output.

[0134] By modifying the input circuit and output circuit, the high-voltage power supply input is DC12V and the output high voltage is -9kV. To ensure safety, the input DC12V and the high-voltage output are made completely isolated. In this way, the output high voltage will not have a common circuit with the input DC12V. The single high voltage only discharges to the air. When a person touches the high voltage, the high voltage will not form a circuit with the high voltage ground, and there will be no electric shock.

[0135] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. An air purification device, characterized in that: include: A frame, wherein one side of the frame is provided with an air inlet and the other side is provided with an air outlet, and the frame is used to accommodate the micro-electrostatic module and the charging mechanism; The micro-electrostatic module includes a filter element, which includes a plurality of air channels for air circulation, and the filter element is arranged near the air outlet; The charging mechanism is located on the side of the filter element away from the air outlet. The charging mechanism includes several electrode heads distributed on the surface of the filter element so that the discharge area of the charging mechanism covers the entire filter element. The charging mechanism also includes a first receiving groove and an electrode body. The first receiving groove is inside the frame. The electrode body is arranged along the length direction of the first receiving groove. The electrode head passes through the groove wall of the first receiving groove and is connected to the electrode body. The electrode head is a carbon fiber brush or a bundle of metal wires. The angle formed by the arrangement direction of the electrode head and the plane where the frame is located is greater than 0 degree and less than or equal to 60 degrees.

2. The air purification device according to claim 1, characterized in that There are a plurality of first accommodating slots, which are arranged at intervals, and the electrode bodies located in different first accommodating slots are connected in sequence end to end.

3. The air purification device according to claim 2, characterized in that The electrode heads are connected to both sides of the first accommodating groove, and the distance between two adjacent electrode heads located on the same side of the same first accommodating groove is equal to the distance between two adjacent first accommodating grooves.

4. The air purification device according to claim 3, characterized in that The electrode heads located on both sides of the same first receiving slot are arranged in parallel to form a plurality of electrode head pairs, and the electrode head pairs located in different first receiving slots are arranged in a staggered manner or in a matrix.

5. The air purification device according to claim 3, characterized in that: The electrode heads located on both sides of the same first accommodating groove are arranged in a staggered manner.

6. The air purification device according to claim 1, characterized in that The charging mechanism further includes a conductive discharge plate, which is located on a side of the electrode head away from the filter element. The conductive discharge plate is provided with a discharge conductive hole that matches the electrode head.

7. The air purification device according to claim 1, characterized in that The first receiving groove is detachably connected to the interior of the frame, and notches matching the frame are provided at both ends of the first receiving groove. When the first receiving groove is installed inside the frame, the first receiving groove does not exceed the outer surface of the frame.

8. The air purification device according to claim 1, characterized in that The frame body comprises a first frame and a second frame, the first frame and the second frame are arranged opposite to each other, and the first frame and the second frame are complementary structures that can be spliced together.

9. The air purification device according to claim 1, characterized in that: The frame is provided with a power supply compartment, in which a high-voltage power supply is provided. The high-voltage power supply is electrically connected to the charging mechanism and the filter element.

10. The air purification device according to claim 9, characterized in that: The high-voltage power supply is connected to an external power supply through a power adapter. One end of the power supply compartment is provided with a power adapter for transferring power. The power adapter is provided with a magnetic female head for providing an electrical connection for the high-voltage power supply. The power adapter is connected to a magnetic male head that matches the magnetic female head.

11. The air purification device according to claim 1, characterized in that: The filter element is provided with a fixing groove, the frame and the filter element are connected via a fixing component, the fixing component is embedded in the fixing groove, and the fixing component is connected to both the frame and the filter element to fix the filter element.

12. The air purification device according to claim 11, characterized in that: The fixing component includes a boss formed integrally with the frame body, the boss is extended in a direction close to the filter element, and the boss is embedded in the fixing groove.

13. The air purification device according to claim 11, characterized in that The filter element includes a plurality of dust collecting sheets arranged in a stacked manner and a plurality of isolating members arranged between the dust collecting sheets, the air channel is formed between the dust collecting sheets and the isolating members, the dust collecting sheets are wrapped with conductive material, the conductive material includes an avoidance groove, and the avoidance groove is arranged corresponding to the fixed groove.

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