Ozone air disinfection device and control system thereof

Abstract

The application discloses an ozone air sterilization device, which comprises a shell composed of a front shell and a rear shell, the front shell and the rear shell are buckled and installed, a front air duct plate and a switch are installed on the front shell, a rear air duct plate and a dismounting plate are installed on the rear shell, a main control circuit board, a lithium battery assembly, a negative ion assembly, an ozone releasing assembly and an ozone decomposing assembly are installed between the front shell and the rear shell, and a negative ion fan is installed at the rear end of the negative ion assembly. The ozone air sterilization device has the following advantages: intelligent one-key control is adopted, the sterilization and antibacterial effect on the surface of an object is realized, bacteria on the surface of the object are killed through ozone, and the sterilization and antibacterial purpose is achieved, and the technology of filtering and decomposing is adopted to decompose residual ozone in a sterilization space.

Description

Technical Field

[0001] This invention relates to an ozone air disinfection device and its control system, belonging to the field of air conditioning technology. Background Technology

[0002] Currently, various microorganisms, bacteria, fungi, and viruses are seriously affecting human health on Earth, and people must take precautions at all times. Ozone is a broad-spectrum disinfectant and bactericidal substance, but residual ozone in disinfected spaces is harmful to humans.

[0003] However, ozone disinfection applications often result in high levels of residual ozone in the disinfection space, which can be harmful to humans. Current technologies do not address the residual ozone levels in any way; the only way to reduce them is to allow people to avoid contact with the disinfection space for an extended period after disinfection, allowing the residual ozone levels to decrease through the ozone's half-life, which is highly uncertain. Summary of the Invention

[0004] The technical problem to be solved by this invention is to address the above-mentioned shortcomings by providing an ozone air disinfection device and its control system. The device uses intelligent one-button control to achieve disinfection and antibacterial effects on object surfaces. Ozone kills bacteria on object surfaces, thereby achieving the purpose of disinfection and antibacterial action. The device uses filtration and decomposition technology to decompose residual ozone in the disinfection space, ensuring that ozone residue is basically zero after disinfection. In particular, the application of negative ions ensures the freshness of the air.

[0005] To solve the above technical problems, the present invention adopts the following technical solution:

[0006] An ozone air disinfection device includes an outer shell, which is composed of a front shell and a rear shell. The front shell and the rear shell are fastened together. A front air duct plate and a switch are installed on the front shell, and a rear air duct plate and a disassembly plate are installed on the rear shell. A main control circuit board, a lithium battery assembly, a negative ion assembly, an ozone release assembly and an ozone decomposition assembly are installed between the front shell and the rear shell. A negative ion fan 9 is installed at the rear end of the negative ion assembly.

[0007] Both the front and rear air ducts are elliptical in shape, which is beneficial for the release of negative ions. Several multi-angle horn-shaped through holes are evenly arranged on the front and rear air ducts. Elliptical air ducts are opened in the middle part of both the front and rear air ducts. The function of the front air duct is to diffuse the generated ozone or negative ions, while the function of the rear air duct is to allow the negative ion releasing fan or ozone releasing fan to draw air from the air.

[0008] Furthermore, the ozone air disinfection device also includes a light-transmitting plate and a speaker. The light-transmitting plate is an irregular ring shape and is installed between the front air duct plate and the rear air duct plate. It is installed in the middle of the upper part of the front housing and the rear housing by means of a fastening, so that the ambient light inside the ozone air disinfection device can be transmitted.

[0009] Furthermore, the ozone releasing component includes a housing, which includes an upper cover and a lower cover. The upper and lower covers are fastened together. A detection module is embedded in the upper cover. A release fan and an ozone plate are provided between the upper and lower covers. An ozone high-voltage module is fastened to one side of the housing by screws. An air inlet is provided on the other side of the housing. When powered on, the component works to generate ozone with disinfection function and can effectively detect the ozone concentration.

[0010] The release fan is installed behind the ozone pad, and the ozone pad and the release fan axis are perpendicular. The two are fixed to the housing by a snap-fit ​​method. The ozone pad is the ozone release end, and the release fan is to blow the ozone out of the front housing. The ozone high-voltage module is installed on the housing by screw fastening.

[0011] Furthermore, the ozone decomposition component includes a lower support plate and an upper support plate, with an activated carbon component and a decomposition fan disposed between the lower support plate and the upper support plate. The lower support plate is located above the bottom of the inner shell, and the upper support plate and the lower support plate are assembled by means of screw fastening. After the upper support plate and the lower support plate are assembled, they are fixed to the rear shell by means of screw fastening.

[0012] The main control circuit board, lithium battery assembly, negative ion assembly, ozone release assembly, and ozone decomposition assembly are independent components. The lithium battery assembly, negative ion assembly, and ozone release assembly are fixed to the outer shell by screws and are located above the upper support plate. The three are arranged in parallel and do not interfere with each other. The decomposition fan is installed below the upper support plate by screws, and the activated carbon assembly is fastened to the upper support plate. The main control circuit board is installed above the lithium battery assembly and is fixed to the rear shell by fastening.

[0013] Furthermore, the negative ion component includes an air duct frame, a release head, and a fixing plate. The release head is fixed to the air duct frame by the fixing plate, and then releases pure negative ions in conjunction with the transition air duct and a high-power fan.

[0014] The number of release heads and fixing plates are two. Each release head is fixed to the circular guide post of the fixing plate by a snap-fit ​​method. The fixing plate is then fixed to the air duct frame by screws. The two release heads are symmetrically arranged and installed on both sides of the central axis of the front section of the air duct frame.

[0015] The cleaning components are installed inside the air duct frame by screw fastening. A transition air duct is fixed to the rear end of the air duct frame. The transition air duct is fixed to the rear end of the air duct frame by a slot limit and screw fastening. A high-power fan is fixed behind the transition air duct. The high-power fan is fixed to the rear end of the transition air duct by screw fastening. A negative ion high-voltage module is fixed to the outside of the transition air duct by 3M adhesive.

[0016] A control system for an ozone air disinfection device includes a CPU main control module, which is connected to a negative ion module, an ozone generation module, a power supply module, a start button module, a disinfection indicator ambient light module, a servo motor drive module, a fan drive module, a negative ion and ozone switching module, a WIFI pass-through module, and a voice module.

[0017] The CPU main control module includes chip U1, and the model of chip U1 is STM32G070CBT.

[0018] Furthermore, the negative ion module includes a MOSFET Q4, the gate of the MOSFET Q4 is connected to pin 22 of the chip U1, the drain of the MOSFET Q4 is connected to one end of the diode D1 and one end of the capacitor C2, the other end of the diode D1 and the other end of the capacitor C2 are connected to pin 2 of the interface CN3 and connected to a 12VDC power supply, and the source of the MOSFET Q4 is grounded.

[0019] The ozone generating module includes a MOSFET Q3. The gate (G) of the MOSFET Q3 is connected to pin 23 of the chip U1. The drain (D) of the MOSFET Q3 is connected to one end of a resistor R4. The other end of the resistor R4 is connected to one end of a resistor R2 and the gate (G) of the MOSFET Q2. The other end of the resistor R2 and the drain (D) of the MOSFET Q2 are connected to 12V. The source (S) of the MOSFET Q2 is connected to one end of a diode D2 and pin 2 of the interface CN2. The other end of the diode D2, pin 1 of the interface CN2, and the source (S) of the MOSFET Q3 are grounded.

[0020] The fan drive module includes chip U12. Pin 1 of chip U12 is connected to pin 18 of chip U1, pin 2 of chip U12 is connected to pin 19 of chip U1, pin 3 of chip U12 is connected to pin 20 of chip U1, pin 8 of chip U12 is connected to pin 2 of interface CN6, pin 1 of interface CN6 is connected to 12V and used to drive the ozone fan, pin 7 of chip U12 is connected to pin 1 of interface CN1, pin 2 of interface CN1 is connected to 12V and used to drive the ozone decomposition fan, and pin 6 of chip U12 is connected to pin 1 of interface CN4, pin 2 of interface CN4 is connected to 12V and used to drive the negative ion fan.

[0021] Furthermore, the servo drive module includes chip U2, model ME6217C33M5G. Pins 1 and 3 of chip U2 are connected to one end of capacitor C12 and connected to VCC power supply. The other end of capacitor C12 is grounded. Pin 5 of chip U2 is connected to one end of capacitor C14, one end of capacitor C15, one end of capacitor C16, and pin 4 of chip U3. The other ends of capacitor C14, C15, and C16 are grounded. Pin 5 of chip U3 is connected to pin 11 of chip U1. Pin 6 of chip U3 is connected to pin 12 of chip U1. Pin 3 of chip U3 is connected to pin 1 of interface CN5. Pin 1 of chip U3 is connected to pin 2 of interface CN5.

[0022] Furthermore, the start button module includes a transistor Q13. The base of transistor Q13 is connected to one end of resistor R31 and one end of resistor R32. The other end of resistor R31 is connected to pin 9 of chip U1. The emitter of transistor Q13 and the other end of resistor R32 are grounded. The collector of transistor Q13 is connected to one end of diode D9, one end of resistor R30, and the gate of MOSFET Q14. The source of MOSFET Q14 is connected to one end of capacitor C5 and connected to VCC power supply. The other end of diode D9 is connected to one end of diode D8 and pin 2 of interface CN11. The other end of diode D8 is connected to one end of resistor R9 and one end of resistor R42. The other end of resistor R9 is connected to the other end of resistor R30 and the drain of MOSFET Q14 and connected to 5V power supply. The other end of resistor R42 is connected to one end of capacitor C39 and pin 1 of chip U1. The other end of capacitor C39 is grounded.

[0023] Furthermore, the negative ion and ozone switching module includes an interface CN9, which is used for external ozone detection. One end of resistor R36 is connected to pin 4 of interface CN9, and the other end of resistor R36 is connected to a 3V3 power supply. One end of resistor R37 is connected to pin 3 of interface CN9, and the other end of resistor R37 is connected to one end of capacitor C36 and pin 24 of chip U1. The other end of capacitor C36 is grounded.

[0024] The negative ion and ozone switching module also includes an interface CN12. Pin 2 of the interface CN12 is connected to one end of resistor R39 and one end of resistor R43. The other end of resistor R39 is connected to VCC power supply. The other end of resistor R43 is connected to one end of capacitor C40 and pin 2 of chip U1. The other end of capacitor C40 is grounded. When the output is low, the ozone mode is switched. When the output is high, the negative ion mode is switched.

[0025] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0026] It adopts intelligent one-button control to achieve disinfection and antibacterial effects on object surfaces. Ozone kills bacteria on object surfaces, thereby achieving the purpose of disinfection and antibacterial effects. It uses filtration and decomposition technology to decompose residual ozone in the disinfection space, ensuring that ozone residue is basically zero after disinfection. In particular, the application of negative ions ensures the freshness of the air.

[0027] The ozone disinfection system adopts a modular design, with three main modules—a negative ion release module, an ozone release module, and an ozone decomposition module—arranged on the central control support plate. The ozone release module releases ozone by drawing air in from the rear and expelling it from the front, while the ozone decomposition module absorbs and decomposes residual ozone by drawing air in from the bottom and expelling it from the top. The negative ion release module releases negative ions by drawing air in from the rear and expelling it from the front. The multi-angle, densely perforated design of the front air duct plate disperses the blown air, providing a better user experience. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0029] Figure 1 This is a schematic diagram of the ozone air disinfection device in this invention;

[0030] Figure 2 This is a schematic diagram of the ozone-releasing component in this invention;

[0031] Figure 3 This is a schematic diagram of the ozone decomposition component in this invention;

[0032] Figure 4 This is a schematic diagram of the negative ion component in this invention;

[0033] Figures 5-15 This is a circuit diagram of the control system in this invention. Detailed Implementation

[0034] Example 1, such as Figures 1 to 4As shown, an ozone air disinfection device includes an outer shell, which is composed of a front shell 3 and a rear shell 10. The front shell 3 and the rear shell 10 are fastened together and the overall shape of the front shell 3 and the rear shell 10 after assembly is egg-shaped. The arc surface of the egg shape is more conducive to airflow. A front air duct plate 2 and a switch 1 are installed on the front shell 3, and a rear air duct plate 11 and a disassembly plate 12 are installed on the rear shell 10. A main control circuit board 4, a lithium battery assembly 5, a negative ion assembly 7, an ozone release assembly 13 and an ozone decomposition assembly are installed between the front shell 3 and the rear shell 10. A negative ion fan 9 is installed at the rear end of the negative ion assembly 7. Each component is installed separately and independently to avoid functional interference. The installation positions of the components are convenient for production, processing and worker assembly and maintenance.

[0035] The bottom of the front housing 3 and the rear housing 10 are provided with rubber pads 14, which serve to buffer and reduce shock.

[0036] Both the front air duct plate 2 and the rear air duct plate 11 are elliptical in shape, which is beneficial for the release of negative ions. Several multi-angled, trumpet-shaped through holes are evenly arranged on the front air duct plate 2 and the rear air duct plate 11. Elliptical air ducts are opened in the middle of both the front air duct plate 2 and the rear air duct plate 11. The front air duct plate 2 allows the generated ozone or negative ions to diffuse outwards, while the rear air duct plate 11 allows the negative ion releasing fan or ozone releasing fan to draw air from the air. The air duct as a whole is an irregular curved surface, with each point having a different width to the central axis. The openings are arranged according to a functional relationship, with each through hole having a different diameter and angle, exhibiting a diffusion pattern. The diameter of the dense holes at the bottom of the air duct plate is larger, decreasing towards the top. This design rationally distributes the airflow, greatly increasing the release effect of negative ions and ozone. Each through hole has a smaller inner diameter and a larger outer diameter, resembling a trumpet hole with a 45° angle. The air first converges before being blown out, increasing air pressure while reducing wind noise.

[0037] The front air duct plate 2 and the rear air duct plate 11 are installed on the front housing 3 and the rear housing 10 respectively by snap-fit ​​installation; the function of the disassembly plate 12 is to facilitate the user to replace the activated carbon component. It is installed on the rear housing 10 by snap-fit ​​installation. Ozone generation and ozone decomposition are independent air ducts. The installation positions of the two can prevent them from being absorbed and decomposed by activated carbon at the same time during the generation process.

[0038] The ozone air disinfection device also includes a light-transmitting plate 6 and a speaker 8. The light-transmitting plate 6 is an irregular ring shape and is installed between the front air duct plate 2 and the rear air duct plate 11. In order to fit tightly, the end face of the light-transmitting plate 6 is irregularly shaped. The overall ring design is conducive to the reflection of internal light, making the light more uniform and bright. It is installed in the middle of the front housing 3 and the rear housing 10 by snapping, and its function is to allow the ambient light inside the ozone air disinfection device to shine through. The speaker 8 is fixed to the rear housing 10 by snapping and its function is to broadcast voice reminders during operation.

[0039] like Figure 2 As shown, the ozone release component 13 includes a housing, which includes an upper cover 22 and a lower cover 26. The upper cover 22 and the lower cover 26 are fastened together. A detection module 21 is embedded in the upper cover 22. A release fan 24 and an ozone sheet 25 are provided between the upper cover 22 and the lower cover 26. An ozone high-voltage module 23 is fastened to one side of the housing by screws. An air inlet is provided on the other side of the housing. After being powered on, the component works to generate ozone with disinfection function and can effectively detect the ozone concentration.

[0040] The release fan 24 is installed behind the ozone sheet 25. The ozone sheet 25 and the release fan 24 are perpendicular to each other and are fixed to the housing by fastening. The ozone sheet 25 is the ozone release end, and the release fan 24 blows the ozone out of the front housing 3. The ozone high-pressure module 3 is installed on the housing by screw fastening.

[0041] like Figure 3 As shown, the ozone decomposition assembly includes a lower support plate 15 and an upper support plate 18. An activated carbon assembly 16 and a decomposition fan 17 are disposed between the lower support plate 15 and the upper support plate 18. The lower support plate 15 is located above the bottom of the outer shell. The upper support plate 18 and the lower support plate 15 are assembled by screw fastening. After the upper support plate 18 and the lower support plate 15 are assembled, they are fixed to the rear shell 10 by screw fastening. The activated carbon assembly 16, which is a mixture of activated carbon and highly active minerals that can decompose harmful gases, is used in conjunction with the decomposition fan 17. When disinfection is completed, the system cuts off the power supply for ozone generation and release, turns on the decomposition assembly, and the decomposition impeller runs at high speed to form an inward airflow, which quickly passes the residual ozone through the decomposition filter. The residual ozone is decomposed in a short time, eliminating its harm to the human body.

[0042] The main control circuit board 4, lithium battery assembly 5, negative ion assembly 7, ozone release assembly 13, and ozone decomposition assembly are independent components. The lithium battery assembly 5, negative ion assembly 7, and ozone release assembly 13 are fixed to the outer shell by screws and are located above the upper support plate 18. The three are arranged in parallel and do not interfere with each other. The decomposition fan 17 is installed below the upper support plate 18 by screws, and the activated carbon assembly is fastened to the upper support plate 15. The main control circuit board 4 is installed above the lithium battery assembly 5 and is fixed to the rear shell 10 by fastening.

[0043] like Figure 4As shown, the negative ion component 7 includes an air duct frame 34, a release head 32, and a fixing plate 31. The release head 32 is fixed to the air duct frame 34 by the fixing plate 31. It releases pure negative ions in conjunction with the transition air duct 36 and the high-power fan 37. In addition, a cleaning component 33 is added to ensure that the release head is clean and can release for a long time. Furthermore, the negative ion high-voltage module 35 is externally mounted to ensure that there is no obstruction in the air duct and greatly reduce the noise caused by wind resistance.

[0044] There are two release heads 32 and two fixing plates 31. Each release head 32 is fixed to the circular guide post of the fixing plate 31 by snapping. The fixing plate 31 is then fixed to the air duct frame 34 by screws. The two release heads 32 are symmetrically arranged and installed on both sides of the central axis of the front section of the air duct frame 34.

[0045] The cleaning component 33 is installed inside the air duct frame 34 by screw fastening. A transition air duct 36 is fixed to the rear end of the air duct frame 34. The transition air duct 36 is fixed to the rear end of the air duct frame 34 by a slot limit and screw fastening. A high-power fan 37 is fixed behind the transition air duct 36. The high-power fan 37 is fixed to the rear end of the transition air duct 36 by screw fastening. A negative ion high-voltage module 35 is fixed to the outside of the transition air duct 36 by 3M adhesive.

[0046] A control system for an ozone air disinfection device includes a CPU main control module, which is connected to a negative ion module, an ozone generation module, a power supply module, a start button module, a disinfection indicator ambient light module, a servo motor drive module, a fan drive module, a negative ion and ozone switching module, a WIFI pass-through module, and a voice module.

[0047] like Figure 5 As shown, the CPU main control module includes chip U1, and the model of chip U1 is STM32G070CBT.

[0048] like Figure 6 As shown, the negative ion module includes a MOSFET Q4. The gate (G) of the MOSFET Q4 is connected to pin 22 of the chip U1. The drain (D) of the MOSFET Q4 is connected to one end of a diode D1 and one end of a capacitor C2. The other end of the diode D1 and the other end of the capacitor C2 are connected to pin 2 of the interface CN3 and connected to a 12VDC power supply. The source (S) of the MOSFET Q4 is grounded.

[0049] like Figure 7The ozone generating module includes a MOSFET Q3. The gate (G) of the MOSFET Q3 is connected to pin 23 of the chip U1. The drain (D) of the MOSFET Q3 is connected to one end of a resistor R4. The other end of the resistor R4 is connected to one end of a resistor R2 and the gate (G) of the MOSFET Q2. The other end of the resistor R2 and the drain (D) of the MOSFET Q2 are connected to 12V. The source (S) of the MOSFET Q2 is connected to one end of a diode D2 and pin 2 of the interface CN2. The other end of the diode D2, pin 1 of the interface CN2, and the source (S) of the MOSFET Q3 are grounded.

[0050] like Figure 8 As shown, the fan drive module includes chip U12. Pin 1 of chip U12 is connected to pin 18 of chip U1, pin 2 of chip U12 is connected to pin 19 of chip U1, pin 3 of chip U12 is connected to pin 20 of chip U1, pin 8 of chip U12 is connected to pin 2 of interface CN6, pin 1 of interface CN6 is connected to 12V and used to drive the ozone fan, pin 7 of chip U12 is connected to pin 1 of interface CN1, pin 2 of interface CN1 is connected to 12V and used to drive the ozone decomposition fan, and pin 6 of chip U12 is connected to pin 1 of interface CN4, pin 2 of interface CN4 is connected to 12V and used to drive the negative ion fan.

[0051] like Figure 9 As shown, the servo drive module includes chip U2, model ME6217C33M5G. Pins 1 and 3 of chip U2 are connected to one end of capacitor C12 and connected to VCC power supply. The other end of capacitor C12 is grounded. Pin 5 of chip U2 is connected to one end of capacitor C14, one end of capacitor C15, one end of capacitor C16 and pin 4 of chip U3. The other ends of capacitor C14, C15 and C16 are grounded. Pin 5 of chip U3 is connected to pin 11 of chip U1. Pin 6 of chip U3 is connected to pin 12 of chip U1. Pin 3 of chip U3 is connected to pin 1 of interface CN5. Pin 1 of chip U3 is connected to pin 2 of interface CN5.

[0052] like Figure 10 As shown, the voice module includes a chip U11, model number MXL064-8S. Pin 3 of chip U11 is connected to pin 34 of chip U11, pin 4 of chip U11 is connected to pin 33 of chip U11, pin 5 of chip U11 is connected to one end of capacitor C43 and one end of capacitor C44, the other end of capacitor C43 and the other end of capacitor C44 are grounded, and pins 6 and 7 of chip U11 are connected to interface CN13.

[0053] One-time programmable (OTP) voice chips were selected, and the required voice segments were edited and then programmed. In actual use scenarios and corresponding states, the MCU controls the speaker to play prompt tones.

[0054] like Figure 11As shown, the power module includes chip U4, model SX1308. Pins 4 and 5 of chip U4 are connected to one end of capacitor C20, one end of inductor L2, and the source (S) terminal of MOSFET Q11. The other end of capacitor C20 is grounded. The drain (D) terminal of MOSFET Q11 is connected to one end of resistor R24 ​​and connected to a 5V power supply. The other end of resistor R24 ​​and the gate (G) terminal of MOSFET Q11 are connected to pin 17 of chip U1. The other end of inductor L2 is connected to pin 1 of chip U4 and one end of diode D6. The other end of diode D6 is connected to one end of resistor R23, one end of capacitor C23, and one end of capacitor C22 and connected to a 12V power supply. The other ends of capacitor C23 and capacitor C22 are grounded. Pin 3 of chip U4 is connected to the other end of resistor R23 and one end of resistor R28. The other end of resistor R28 is grounded.

[0055] The power module also includes chip U5, model SX1308. Pins 4 and 5 of chip U5 are connected to one end of capacitor C21, one end of inductor L3, and the source (S) terminal of MOSFET Q12. The other end of capacitor C21 is grounded. The drain (D) terminal of MOSFET Q12 is connected to one end of resistor R27 and connected to a 5V power supply. The other end of resistor R27 and the gate (G) terminal of MOSFET Q12 are connected to pin 16 of chip U1. The other end of inductor L3 is connected to pin 1 of chip U5 and one end of diode D7. The other end of diode D7 is connected to one end of resistor R26 and one end of capacitor C24 and connected to a 12VDC power supply. The other end of capacitor C24 is grounded. Pin 3 of chip U5 is connected to the other end of resistor R26 and one end of resistor R29. The other end of resistor R29 is grounded.

[0056] like Figure 12 As shown, the start button module includes a transistor Q13. The base of transistor Q13 is connected to one end of resistor R31 and one end of resistor R32. The other end of resistor R31 is connected to pin 9 of chip U1. The emitter of transistor Q13 and the other end of resistor R32 are grounded. The collector of transistor Q13 is connected to one end of diode D9, one end of resistor R30, and the gate of MOSFET Q14. The source of MOSFET Q14 is connected to one end of capacitor C5 and connected to VCC power supply. The other end of diode D9 is connected to one end of diode D8 and pin 2 of interface CN11. The other end of diode D8 is connected to one end of resistor R9 and one end of resistor R42. The other end of resistor R9 is connected to the other end of resistor R30 and the drain of MOSFET Q14 and connected to 5V power supply. The other end of resistor R42 is connected to one end of capacitor C39 and pin 1 of chip U1. The other end of capacitor C39 is grounded.

[0057] The two pins of interface CN11 are the two ends of the button. Pressing the button shorts these two pins, allowing the CPU main control module to detect the button state change and perform the corresponding function. A single short press is automatically defined as function activation, and a long press is detected, which controls the power supply via a control signal.

[0058] like Figure 13 As shown, the disinfection indicator ambient light includes a chip U6, model number ULN2001M / TR. Pin 1 of chip U6 is connected to pin 32 of chip U1, pin 2 of chip U6 is connected to pin 29 of chip U1, pin 3 of chip U6 is connected to pin 28 of chip U1, pin 6 of chip U6 is connected to pin 4 of interface CN7 and pin 4 of interface CN8, pin 7 of chip U6 is connected to pin 3 of interface CN7 and pin 3 of interface CN8, and pin 8 of chip U6 is connected to pin 2 of interface CN7 and pin 2 of interface CN8.

[0059] The ambient light uses RGB tri-color LEDs, and its display color is edited through PWM signals. ULN2001 is used to enhance the driving capability. The specific display color depends on the device's working status and mode, and is controlled by the MCU.

[0060] like Figure 14 As shown, the negative ion and ozone switching module includes an interface CN9, which is used for external ozone detection. One end of a resistor R36 is connected to pin 4 of the interface CN9, and the other end of the resistor R36 is connected to a 3V3 power supply. One end of a resistor R37 is connected to pin 3 of the interface CN9, and the other end of the resistor R37 is connected to one end of a capacitor C36 and pin 24 of the chip U1. The other end of the capacitor C36 is grounded.

[0061] The negative ion and ozone switching module also includes an interface CN12. Pin 2 of the interface CN12 is connected to one end of resistor R39 and one end of resistor R43. The other end of resistor R39 is connected to VCC power supply. The other end of resistor R43 is connected to one end of capacitor C40 and pin 2 of chip U1. The other end of capacitor C40 is grounded. When the output is low, the ozone mode is switched. When the output is high, the negative ion mode is switched.

[0062] like Figure 15 As shown, the WIFI pass-through module includes a chip U10. Pin 1 of chip U10 is connected to one end of resistor R45, and the other end of resistor R45 is connected to a 3V3 power supply. Pin 3 of chip U10 is connected to one end of resistor R46, and the other end of resistor R46 is connected to a 3V3 power supply. Pin 8 of chip U10 is connected to one end of capacitor C42 and connected to a 3V3 power supply. The other end of capacitor C42 is grounded. Pin 11 of chip U10 is connected to one end of resistor R48, and the other end of resistor R48 is connected to a 3V3 power supply. Pin 12 of chip U10 is connected to one end of resistor R47, and the other end of resistor R47 is connected to a 3V3 power supply. Pin 15 of chip U10 is connected to pin 13 of chip U1, and pin 16 of chip U10 is connected to pin 14 of chip U1.

[0063] The description of this invention is given for illustrative and descriptive purposes only and is not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A control system for an ozone air disinfection device, characterized in that: Includes an outer shell, which consists of a front shell (3) and a rear shell (10). The front shell (3) and the rear shell (10) are fastened together. A front air duct plate (2) and a switch (1) are installed on the front shell (3). A rear air duct plate (11) and a disassembly plate (12) are installed on the rear shell (10). A main control circuit board (4), a lithium battery assembly (5), a negative ion assembly (7), an ozone release assembly (13), and an ozone decomposition assembly are installed between the front shell (3) and the rear shell (10). A negative ion fan is installed at the rear end of the negative ion assembly (7). The front air duct plate (2) and the rear air duct plate (11) are both elliptical in shape, which is beneficial for the release of negative ions. Several multi-angle trumpet-shaped through holes are evenly arranged on the front air duct plate (2) and the rear air duct plate (11). The middle part of the front air duct plate (2) and the rear air duct plate (11) are both provided with elliptical air ducts. The function of the front air duct plate (2) is to allow the generated ozone or negative ions to diffuse out, and the function of the rear air duct plate (11) is to allow the negative ion release fan or ozone release fan to draw air from the air. The control system is applied in the ozone air disinfection device and includes a CPU main control module. The CPU main control module is connected to a negative ion module, an ozone generation module, a power supply module, a start button module, a disinfection indicator ambient light module, a servo motor drive module, a fan drive module, a negative ion and ozone switching module, a WIFI pass-through module, and a voice module. The CPU main control module includes chip U1, and the model of chip U1 is STM32G070CBT; The servo drive module includes chip U2, model ME6217C33M5G. Pins 1 and 3 of chip U2 are connected to one end of capacitor C12 and connected to VCC power supply. The other end of capacitor C12 is grounded. Pin 5 of chip U2 is connected to one end of capacitor C14, one end of capacitor C15, one end of capacitor C16 and pin 4 of chip U3. The other ends of capacitor C14, C15 and C16 are grounded. Pin 5 of chip U3 is connected to pin 11 of chip U1. Pin 6 of chip U3 is connected to pin 12 of chip U1. Pin 3 of chip U3 is connected to pin 1 of interface CN5. Pin 1 of chip U3 is connected to pin 2 of interface CN5. The start button module includes a transistor Q13. The base of transistor Q13 is connected to one end of resistor R31 and one end of resistor R32. The other end of resistor R31 is connected to pin 9 of chip U1. The emitter of transistor Q13 and the other end of resistor R32 are grounded. The collector of transistor Q13 is connected to one end of diode D9, one end of resistor R30, and the gate of MOSFET Q14. The source of MOSFET Q14 is connected to one end of capacitor C5 and connected to VCC power supply. The other end of diode D9 is connected to one end of diode D8 and pin 2 of interface CN11. The other end of diode D8 is connected to one end of resistor R9 and one end of resistor R42. The other end of resistor R9 is connected to the other end of resistor R30 and the drain of MOSFET Q14 and connected to 5V power supply. The other end of resistor R42 is connected to one end of capacitor C39 and pin 1 of chip U1. The other end of capacitor C39 is grounded.

2. The control system of the ozone air disinfection device as described in claim 1, characterized in that: The ozone air disinfection device also includes a light-transmitting plate (6) and a horn (8). The light-transmitting plate (6) is an irregular ring shape. The light-transmitting plate (6) is installed between the front air duct plate (2) and the rear air duct plate (11) and is installed above the front housing (3) and the rear housing (10) by means of fastening. Its function is to allow the ambient light inside the ozone air disinfection device to shine through.

3. The control system of the ozone air disinfection device as described in claim 1, characterized in that: The ozone release component (13) includes a housing, which includes an upper cover (22) and a lower cover (26). The upper cover (22) and the lower cover (26) are fastened together. A detection module (21) is embedded in the upper cover (22). A release fan (24) and an ozone sheet (25) are provided between the upper cover (22) and the lower cover (26). An ozone high-voltage module (23) is fastened to one side of the housing by screws. An air inlet is provided on the other side of the housing. When powered on, the component works to generate ozone with disinfection function and can effectively detect the ozone concentration. The release fan (24) is installed behind the ozone sheet (25). The ozone sheet (25) and the release fan (24) are perpendicular to each other and are fixed to the housing by fastening. The ozone sheet (25) is the ozone release end, and the release fan (24) blows the ozone out of the front housing (3). The ozone high-pressure module is installed on the housing by screw fastening.

4. The control system of the ozone air disinfection device as described in claim 1, characterized in that: The ozone decomposition assembly includes a lower support plate (15) and an upper support plate (18). An activated carbon assembly (16) and a decomposition fan (17) are provided between the lower support plate (15) and the upper support plate (18). The lower support plate (15) is located above the bottom of the outer shell. The upper support plate (18) and the lower support plate (15) are assembled by screw fastening. After the upper support plate (18) and the lower support plate (15) are assembled, they are fixed to the rear shell (10) by screw fastening. The main control circuit board (4), lithium battery assembly (5), negative ion assembly (7), ozone release assembly (13) and ozone decomposition assembly are independent components. The lithium battery assembly (5), negative ion assembly (7) and ozone release assembly (13) are fixed to the outer shell by screw fastening and are located above the upper support plate (18). The three are arranged in parallel and do not interfere with each other. The decomposition fan (17) is installed below the upper support plate (18) by screw fastening, and the activated carbon assembly is fastened and installed above the lower support plate (15). The main control circuit board (4) is installed above the lithium battery assembly (5) and is fixed to the rear shell (10) by fastening.

5. The control system of the ozone air disinfection device as described in claim 1, characterized in that: The negative ion component (7) includes a duct frame (34), a release head (32) and a fixing plate (31). The release head (32) is fixed on the duct frame (34) by the fixing plate (31), and then releases pure negative ions in conjunction with the transition duct (36) and the high-power fan (37). The number of release heads (32) and fixing plates (31) are two. Each release head (32) is fixed to the circular guide post of the fixing plate (31) by snapping. The fixing plate (31) is then fixed to the air duct frame (34) by screws. The two release heads (32) are arranged symmetrically and installed on both sides of the central axis of the front section of the air duct frame (34). The cleaning component (33) is installed inside the air duct frame (34) by screw fastening. A transition air duct (36) is fixed at the rear end of the air duct frame (34). The transition air duct (36) is fixed at the rear end of the air duct frame (34) by a slot limit and screw fastening. A high-power fan (37) is fixed behind the transition air duct (36). The high-power fan (37) is fixed at the rear end of the transition air duct (36) by screw fastening. A negative ion high-voltage module (35) is fixed on the outside of the transition air duct (36) by 3M adhesive.

6. The control system of the ozone air disinfection device as described in claim 1, characterized in that: The negative ion module includes a MOSFET Q4. The gate of the MOSFET Q4 is connected to pin 22 of the chip U1. The drain of the MOSFET Q4 is connected to one end of the diode D1 and one end of the capacitor C2. The other end of the diode D1 and the other end of the capacitor C2 are connected to pin 2 of the interface CN3 and connected to a 12VDC power supply. The source of the MOSFET Q4 is grounded. The ozone generating module includes a MOSFET Q3. The gate (G) of the MOSFET Q3 is connected to pin 23 of the chip U1. The drain (D) of the MOSFET Q3 is connected to one end of a resistor R4. The other end of the resistor R4 is connected to one end of a resistor R2 and the gate (G) of the MOSFET Q2. The other end of the resistor R2 and the drain (D) of the MOSFET Q2 are connected to 12V. The source (S) of the MOSFET Q2 is connected to one end of a diode D2 and pin 2 of the interface CN2. The other end of the diode D2, pin 1 of the interface CN2, and the source (S) of the MOSFET Q3 are grounded. The fan drive module includes chip U12. Pin 1 of chip U12 is connected to pin 18 of chip U1, pin 2 of chip U12 is connected to pin 19 of chip U1, pin 3 of chip U12 is connected to pin 20 of chip U1, pin 8 of chip U12 is connected to pin 2 of interface CN6, pin 1 of interface CN6 is connected to 12V and used to drive the ozone fan, pin 7 of chip U12 is connected to pin 1 of interface CN1, pin 2 of interface CN1 is connected to 12V and used to drive the ozone decomposition fan, and pin 6 of chip U12 is connected to pin 1 of interface CN4, pin 2 of interface CN4 is connected to 12V and used to drive the negative ion fan.

7. The control system of the ozone air disinfection device as described in claim 1, characterized in that: The negative ion and ozone switching module includes an interface CN9, which is used for external ozone detection. One end of resistor R36 is connected to pin 4 of interface CN9, and the other end of resistor R36 is connected to a 3V3 power supply. One end of resistor R37 is connected to pin 3 of interface CN9, and the other end of resistor R37 is connected to one end of capacitor C36 and pin 24 of chip U1. The other end of capacitor C36 is grounded. The negative ion and ozone switching module also includes an interface CN12. Pin 2 of the interface CN12 is connected to one end of resistor R39 and one end of resistor R43. The other end of resistor R39 is connected to VCC power supply. The other end of resistor R43 is connected to one end of capacitor C40 and pin 2 of chip U1. The other end of capacitor C40 is grounded. When the output is low, the ozone mode is switched. When the output is high, the negative ion mode is switched.

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