Air purifier for bathroom field

Abstract

This invention discloses an air purifier for use in bathrooms, comprising a housing with an air inlet and an air outlet. Inside the housing, a fan and an electrode module are sequentially arranged along the airflow direction. The fan is positioned adjacent to the air inlet, with its outlet facing the air inlet of the electrode module. The electrode module is positioned adjacent to the air outlet. The electrode module includes: a tubular structure formed by a top sealing plate, a bottom sealing plate, a left vertical plate, and a right vertical plate fixedly connected; and an electrode holder disposed within the tubular structure, on which alternately equidistant negative and positive electrode plates are mounted. This invention, based on plasma technology, strictly controls the distance between the negative and positive electrode plates, as well as the voltage between them, effectively reducing ozone generation.

Description

Technical Field

[0001] This invention relates to the field of air purifiers, and more particularly to an air purifier for use in the bathroom. Background Technology

[0002] The main harmful substances in restrooms are skatole, viruses, bacteria, and microorganisms. Low-temperature plasma technology is an electrochemical process involving the combined effects of electrons, chemicals, and catalysis. It has excellent purification properties, thoroughly killing viruses, bacteria, and microorganisms, and can also react with skatole to produce harmless carbon dioxide, water, and nitrates.

[0003] However, low-temperature plasma technology can easily generate ozone during the purification process. When the concentration of ozone produced is too high, it can cause great harm to the human body, such as causing symptoms like coughing, difficulty breathing, and decreased lung function. Moreover, bathrooms are small, damp, and poorly ventilated spaces, so it is necessary to strictly control the generation of ozone in low-temperature plasma technology.

[0004] In view of this, it is necessary to improve the existing technology to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to disclose a plasma technology air purifier that can effectively decompose and eliminate harmful substances such as skatole, viruses, bacteria, and microorganisms in the bathroom, and can effectively reduce ozone generation during the process of eliminating harmful substances.

[0006] Technical solution: To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An air purifier for use in a bathroom includes a housing with an air inlet and an air outlet. Inside the housing, a fan and an electrode module are arranged sequentially along the airflow direction. The fan is positioned adjacent to the air inlet, and its outlet faces the air inlet of the electrode module. A voltage conversion module, including a low-voltage conversion module and a high-voltage conversion module, is positioned adjacent to the air outlet. The electrode module includes:

[0008] The tubular structure is formed by the upper sealing plate, lower sealing plate, left upright plate, and right upright plate being fixedly connected.

[0009] An electrode holder is installed inside a tubular structure. Alternating, equidistant negative and positive electrode plates are mounted on the electrode holder. The voltage between the negative and positive electrode plates is 8500±5% V and the spacing is 9.5±0.5 mm.

[0010] The electrode holder includes:

[0011] Four double-pass hexagonal studs and four single-pass hexagonal studs: the double-pass hexagonal studs and the single-pass hexagonal studs are connected by threaded engagement, and the negative electrode plate is fixed at the threaded connection. The upper sealing plate is the second negative electrode plate, and the lower sealing plate is the third negative electrode plate.

[0012] Two double-through hexagonal copper pillars and two screws: the two ends of the double-through hexagonal copper pillars are connected to the screws by threaded engagement, and the positive electrode plate is fixed at the threaded connection;

[0013] The upper ends of the double-through hexagonal stud and the single-through hexagonal stud are fixed to the upper sealing plate and the lower ends are fixed to the lower sealing plate. The upper ends of the double-through hexagonal copper stud and the screw are fixed to the upper sealing plate and the lower ends are fixed to the lower sealing plate.

[0014] A sealing device is provided at the connection between the two double-through hexagonal copper pillars and the upper and lower sealing plates to seal the voltage inside the tubular structure. The sealing device is provided with a sawtooth-shaped anti-creep mechanism and is made of polytetrafluoroethylene.

[0015] The positive electrode structure is a four-sided sawtooth-shaped structure, which is used to increase the discharge point and improve the purification area.

[0016] The air inlet and air outlet of the casing are respectively equipped with filters.

[0017] The casing is also equipped with a time control switch, which has 20 different time timing, manual timing and time display functions to realize the timer switch function of the purifier.

[0018] The high-voltage power lines of the high-voltage conversion module are covered with nylon protective sleeves.

[0019] The sealing device at the upper sealing plate is an open end block and an open end cap, and the sealing device at the lower sealing plate is an end block and an end cap. The open end block and the open end cap, as well as the end block and the end cap, are interference fits and are used to seal the high-voltage part inside the tubular structure to enhance the environmental tolerance of the electrode structure.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] (1) In this invention, the distance between the negative electrode and the positive electrode is strictly controlled, with the spacing controlled between 9.5±0.5mm, and the voltage between the positive and negative electrodes controlled between 8500±5% V. The distance is inversely proportional to the ozone release, while the voltage is directly proportional to the ozone release. By increasing the spacing and decreasing the voltage while ensuring the purification capacity, the generation of ozone can be effectively reduced.

[0022] (2) In actual production, the final deviation may be large due to dimensional error. This invention utilizes the high dimensional accuracy of hexagonal studs and hexagonal copper studs to ensure dimensional error and strictly control the spacing between positive and negative electrode sheets.

[0023] (3) In this invention, the air outlet of the fan is directly opposite the air inlet of the electrode module and is slightly smaller than the air inlet of the electrode module. This ensures that all incoming air passes through the electrode module, which can greatly improve the removal rate of harmful substances.

[0024] (4) The tubular structure formed by connecting the upper sealing plate, the lower sealing plate and the left upright plate and the right upright plate in this invention, and the electrode module formed by the negative electrode plate and the positive electrode plate fixedly arranged in the tubular structure, the positive electrode plate is a four-sided sawtooth square structure, the discharge point is increased, which can effectively improve the purification area and help to remove harmful substances more efficiently.

[0025] (5) In this invention, the end block and end cap, and the open end block and open end cap are respectively sealed by interference fit to the high voltage conversion module and the low voltage conversion module. This not only plays a role in waterproofing and dustproofing, but also enhances the environmental tolerance of the electrode structure and ensures safety during use. The open end block also has an anti-creep design, which can effectively reduce the product failure rate.

[0026] (6) The filter screen is provided on the filter screen inlet cover and filter screen outlet cover in this invention. It can block mosquitoes from entering and can also be removed and washed with water to achieve zero-cost maintenance. A small time control switch is also provided on the outer shell to realize the timed on / off function of the purifier. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the various components in the device of the present invention;

[0028] Figure 2 This is a schematic diagram showing the locations of the main components in this invention;

[0029] Figure 3 This is a schematic diagram of the appearance of the device in this invention;

[0030] Figure 4 This is a schematic diagram of wind direction flow according to the present invention;

[0031] Figure 5 This is a front view of the entire invention;

[0032] Figure 6 This is a rear view of the entire invention;

[0033] Figure 7 This is a diagram showing the composition of the electrode module device in this invention;

[0034] Figure 8 This is a front view of the electrode module device in this invention;

[0035] Figure 9 This is a rear view of the electrode module device in this invention;

[0036] Figure 10 This is a side view of the electrode module device in this invention;

[0037] Figure 11 This is a bottom view of the electrode module device in this invention;

[0038] Figure 12 This is a cross-sectional view of the electrode module device in this invention;

[0039] In the diagram: 1. Outer shell; 2. Base plate; 3. Wall mount; 4. Screw; 5. Expansion screw; 6. Negative electrode plate; 7. Positive electrode plate; 8. Upper sealing plate; 9. Lower sealing plate; 10. Left vertical plate; 11. Right vertical plate; 12. End block; 13. End cap; 14. Open end block; 15. Open end cap; 16. Double-through hexagonal copper stud; 17. First screw (M4); 18. Washer (4); 19. Second screw (M4); 20. Double-through hexagonal stud; 21. Single-through hexagonal stud; 22. Nylon protective sleeve. 23 Rivet, 24 Fan, 25 Fan bracket, 26 Low-voltage conversion module, 27 High-voltage conversion module, 28 M3 screw, 29 M3 washer, 30 M3 countersunk screw, 31 Short filter bracket, 32 Long filter bracket, 33 Filter inlet cover, 34 Filter outlet cover, 35 Ball plunger, 36 Plug, 37 Miniature time switch, 38 M3 countersunk screw, 39 White cable connector, 40 Three-prong power cord. Detailed Implementation

[0040] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent changes or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0042] This invention discloses an air purifier for bathrooms, such as... Figure 1 , Figure 2Connect the three-prong power cord 40 to the power supply and turn on the small time control switch 37. The fan 24 will start to rotate, and air will enter through the filter inlet cover 33. Since the air outlet of the fan 24 is directly opposite the air inlet of the electrode module and is slightly smaller than the air inlet of the electrode module, all the air will pass through the electrode module. The three-prong power cord 40 is converted by the low-voltage conversion module 26 and the high-voltage conversion module 27. The voltage difference between the positive and negative electrodes in the electrode module is very high, which can ionize the air between the two electrodes and generate a plasma environment. Distance is inversely proportional to ozone release, while voltage is directly proportional to ozone release. Increasing the distance and decreasing the voltage, while ensuring purification capacity, can reduce ozone production. Therefore, controlling the voltage difference between the positive and negative electrodes at 8500±5% V and the distance between the positive and negative electrodes at 9.5±0.5 mm can effectively reduce ozone production. Three negative electrodes 6 and two positive electrodes 7 form four plasma density fields with large contact areas through the upper sealing plate 8 and lower sealing plate 9, allowing for full contact with the air and improving removal efficiency. Furthermore, the tubular structure formed by the upper sealing plate 8, lower sealing plate 9, left vertical plate 10, and right vertical plate 11 allows air to pass only through the plasma density field, ensuring effective removal of harmful substances from the air in a very short time. After being processed within the electrode module, the air is then discharged through the filter outlet cover 34.

[0043] like Figure 5 , Figure 7 , Figure 8 , Figure 9 The electrode module includes a negative electrode plate 6, a positive electrode plate 7, an upper sealing plate 8, a lower sealing plate 9, a left vertical plate 10, a right vertical plate 11, an end block 12, an end cap 13, an open end block 14, an open end cap 15, a double-through hexagonal copper post 16, a first screw M4 17, a washer 4 18, a second screw M4 19, a double-through hexagonal stud 20, a single-through hexagonal stud 21, a nylon protective sleeve 22, and a rivet 23.

[0044] The upper sealing plate 8, lower sealing plate 9, left vertical plate 10, and right vertical plate 11 are connected by rivets 23 to form a tubular structure. Inside this tubular structure are three negative electrode plates 6 and two positive electrode plates 7, which are alternately and equidistantly spaced. The negative electrode plates 6 are secured with threads from double-through hexagonal studs 20 and single-through hexagonal studs 21, which are further secured by a second screw M4 19. The positive electrode plates 7 are threadedly connected to the central double-through hexagonal copper stud 16, thus insulating and uniformly fixing the positive electrode plates within the negative electrode tube. This creates four plasma density fields between the positive electrode plates 7 and negative electrode plates 6 within the electrode module. Furthermore, the positive electrode plates have been improved. The original structure was a two-sided sawtooth straight-line structure; by changing it to a four-sided sawtooth U-shaped structure, the discharge points and purification area are doubled, effectively improving purification efficiency. An open end block 14 and an open end cap 15 are provided at the screw connection on the outside of the upper sealing plate 8, and an end block 12 and an end cap 13 are provided at the screw connection on the outside of the lower sealing plate 9. The open end block 14 and the open end cap 15, and the end block 12 and the end cap 13 are respectively connected by interference fit. This can seal the high voltage part inside, enhance the environmental tolerance of the electrode structure, and ensure that it can still work normally under high humidity and high dust conditions.

[0045] The open end block 14 and open end cap 15 and the end block 12 and end cap 13 are made of polytetrafluoroethylene, which has the functions of high insulation, oxidation resistance and high flame retardancy.

[0046] The tubular structure ensures that wind only passes through the plasma density field and does not dissipate.

[0047] The open end block 14 also has an anti-creep design to reduce product failure rate;

[0048] The entire electrode module is mounted on the base plate 2 using countersunk screws M3 30. Nylon protective sleeve 22 is used to increase the insulation performance of the high-voltage line.

[0049] The fan 24 is fixed to the base plate 2 by the fan bracket 25 with screws M3 28, washers M3 29, and countersunk screws M3 30. The air outlet of the fan 24 is directly opposite the air inlet of the electrode module and is slightly smaller than the air inlet of the electrode module to ensure that all air passes through the electrode module. The three-prong power cord 40 provides high voltage to the electrode module through the conversion of the low voltage conversion module 26 and the high voltage conversion module 27. The low voltage conversion module 26 and the high voltage conversion module 27 are fixed to the base plate 2 by countersunk screws M3 30 respectively.

[0050] The housing includes an outer shell 1, a short filter support 31, a long filter support 32, a filter inlet cover 33, a filter outlet cover 34, a ball plunger 35, a plug 36, a small time control switch 37, a countersunk screw M3 38, a white cable connector 39, and a three-prong power cord 40.

[0051] The filter screen short bracket 31 and filter screen long bracket 32 ​​are fixed to the outer shell 1 panel by countersunk screws M3 38; the ball head plunger 35 is interference-fitted into the filter screen short bracket 31 and filter screen long bracket 32. The ball head plunger 35 has a built-in spring. The filter screen air inlet cover plate 33 and filter screen air outlet cover plate 34 are provided with corresponding slots. By matching the size of the ball head plunger 35, the filter screen air inlet cover plate 33 and filter screen air outlet cover plate 34 can be locked, realizing the boltless fixing function.

[0052] Metal filters are welded onto the air inlet cover 33 and air outlet cover 34 of the filter screen, which can block mosquitoes from entering and can also be removed and washed with water, achieving zero-cost maintenance.

[0053] A small time control switch 37 is installed on the panel of the outer casing 1 via a snap-fit ​​connection, which can realize the timer switch function of the purifier. It has 16 sets of timers for different times, manual timer and time display functions; the white cable connector 39 is used to fix the three-prong power cord 40. Both sides of the outer casing 1 are provided with cable outlet holes. The three-prong power cord 40 can be discharged from both sides according to customer needs, and the other side is sealed with a plug.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An air purifier for use in a bathroom, comprising a housing with an air inlet and an air outlet, wherein inside the housing, a fan and an electrode module are sequentially arranged along the direction of airflow, the fan being positioned adjacent to the air inlet and the fan's outlet facing the air inlet of the electrode module, a voltage conversion module comprising a low-voltage conversion module and a high-voltage conversion module being positioned on the same side of the fan, and the electrode module being positioned adjacent to the air outlet, characterized in that... The electrode module includes: The tubular structure is formed by the upper sealing plate, lower sealing plate, left upright plate, and right upright plate being fixedly connected. An electrode holder is installed inside a tubular structure. Alternating, equidistant negative and positive electrode plates are mounted on the electrode holder. The voltage between the negative and positive electrode plates is 8500±5%V and the spacing is 9.5±0.5mm. The electrode holder includes: Four double-pass hexagonal studs and four single-pass hexagonal studs: the double-pass hexagonal studs and the single-pass hexagonal studs are connected by threaded engagement, and the negative electrode plate is fixed at the threaded connection. The upper sealing plate is the second negative electrode plate, and the lower sealing plate is the third negative electrode plate. Two double-through hexagonal copper pillars and two screws: the two ends of the double-through hexagonal copper pillars are connected to the screws by thread engagement, and the positive electrode plate is fixed at the threaded connection; The upper ends of the double-through hexagonal stud and the single-through hexagonal stud are fixed to the upper sealing plate and the lower ends are fixed to the lower sealing plate, respectively. The upper ends of the double-through hexagonal copper stud and the screw are fixed to the upper sealing plate and the lower ends are fixed to the lower sealing plate.

2. An air purifier for use in the bathroom according to claim 1, characterized in that, A sealing device is provided at the connection between the two double-through hexagonal copper pillars and the upper and lower sealing plates to seal the voltage inside the tubular structure. The sealing device is provided with a sawtooth-shaped anti-creep mechanism and is made of polytetrafluoroethylene.

3. An air purifier for use in the bathroom according to claim 2, characterized in that, The positive electrode structure is a four-sided sawtooth-shaped structure, which is used to increase the discharge point and improve the purification area.

4. An air purifier for use in the bathroom according to claim 1, characterized in that, The air inlet and air outlet of the casing are respectively equipped with filters.

5. An air purifier for use in the bathroom according to claim 1, characterized in that, The casing is also equipped with a time control switch, which has 20 different time timing, manual timing and time display functions to realize the timer switch function of the purifier.

6. An air purifier for use in the bathroom according to any one of claims 1-5, characterized in that, The high-voltage power lines of the high-voltage conversion module are covered with nylon protective sleeves.

7. An air purifier for use in the bathroom according to claim 2, characterized in that, The sealing device at the upper sealing plate is an open end block and an open end cap, and the sealing device at the lower sealing plate is an end block and an end cap. The open end block and the open end cap, as well as the end block and the end cap, are interference fits and are used to seal the high-voltage part inside the tubular structure to enhance the environmental tolerance of the electrode structure.

Images