Voltage monitoring and control method for handheld atomizers

Abstract

This invention discloses a voltage monitoring and control method for a handheld atomizer, comprising an atomizer body, an atomizing head assembly mounted on the top of the body, a start button mounted on the side of the body, and a main control board mounted inside the body. The main control board is connected to a power supply and has a processing chip. The atomizing head assembly further includes an atomizing cup with a cavity for holding atomized liquid. An atomizing nozzle is disposed at the front end of the atomizing cup, and an atomizing plate is disposed between the cavity and the atomizing nozzle. This invention monitors the remaining atomized liquid level in the handheld atomizer using the principle of electrostatic radiation conduction, and controls the working state of the atomizing plate based on the monitoring results. The non-contact method for detecting the atomized liquid level avoids cleaning the metal probe and prevents the radiation receiving device from being contaminated by the atomized liquid during long-term use, thus ensuring long-term detection accuracy and improving the service life of the atomizing head assembly.

Description

Technical Field

[0001] This invention relates to the field of atomizer technology, specifically a voltage monitoring and control method for handheld atomizers. Background Technology

[0002] Nebulizers are mainly used to treat various upper and lower respiratory tract diseases, such as pharyngitis, bronchitis, asthma, and chronic obstructive pulmonary disease. Clinically, nebulizers are divided into ultrasonic nebulizers and compressor nebulizers. The method of using nebulizers is relatively simple. For ultrasonic nebulizers, you can put the drug concentrate or saline solution into the nebulization chamber, then turn on the power, and the drug will be sprayed out as a mist. Then, you can put the nozzle in your mouth and inhale the drug normally.

[0003] Traditional nebulizer devices are relatively large and inconvenient to carry. Therefore, Chinese Patent Publication No. CN203578102U discloses a portable ultrasonic nebulizer device (i.e., what we now commonly call a handheld nebulizer). The portable ultrasonic nebulizer device of this utility model includes a main unit with a control circuit, a vibrating device located inside the main unit, a screen with fine holes in contact with the vibrating device, a liquid outlet, and a bottle located at the top of the main unit for storing the liquid medicine and with a conical bottom. The conical bottle mouth is provided with a bottle cap, and the bottle cap is provided with a fixing piece and a compression silicone ring in contact with the bottle mouth. The bottle cap is also provided with a slot, and the outer surface of the bottle mouth is provided with protrusions corresponding to the slot and capable of locking the bottle cap to prevent it from falling off.

[0004] In traditional handheld atomizers, the atomizing liquid inside the atomizing head (atomizing cup) directly contacts the internal metal probe. The presence of atomizing liquid is determined by the contact between the metal probe and the liquid. However, this method has two drawbacks: firstly, gaps can form between the probe and the atomizing head housing, leading to leakage; secondly, the metal probe is easily contaminated and difficult to clean, affecting the accuracy of the detection and even shortening its lifespan. This necessitates replacing the atomizing head, increasing operating costs.

[0005] Therefore, manufacturers urgently need a new voltage monitoring and control method for handheld atomizers to monitor the remaining liquid level and control the operation of the atomizing plate, while preventing corrosion of the metal radiation plate, ensuring stable operation of the atomizer, and improving the service life and practicality of the atomizer. Summary of the Invention

[0006] The purpose of this invention is to provide a voltage monitoring method and a voltage control method for a handheld atomizer to solve the problems mentioned in the background art.

[0007] A voltage monitoring and control method for a handheld atomizer includes an atomizer body, an atomizing head assembly mounted on top of the body, a start button mounted on the side of the body, and a main control board mounted inside the body. The main control board is connected to a power supply and has a processing chip. The atomizing head assembly further includes an atomizing cup with a cavity for holding atomized liquid. An atomizing nozzle is located at the front end of the atomizing cup. An atomizing plate is positioned between the cavity and the atomizing nozzle, and the atomizing plate has positive and negative contacts. Positive and negative contact springs electrically connected to the positive and negative contacts of the atomizing plate are located at the top of the body. A radiation receiving device is located on the outer side of the bottom of the atomizing cup below the cavity. A signal receiving contact spring for receiving radiation signals from the radiation receiving device is located at the top of the body. The main control board is electrically connected to the positive and negative contact springs, the signal receiving contact spring, and the start button. The voltage monitoring and control method is as follows:

[0008] Fill the cavity with atomizing liquid, press the start button, and the main control board will be powered on and start working. The atomizing plate will start atomizing through the positive and negative electrode springs, and the atomizing liquid in the cavity will be atomized and sprayed out from the atomizing nozzle. At this time, the atomizing plate will generate static electricity during the atomization process.

[0009] When there is atomizing liquid at the bottom of the cavity above the radiation receiving device, a passage is formed in the atomizing plate, the atomizing liquid and the radiation receiving device. The atomizing liquid can conduct the static electricity generated by the atomizing plate and conduct the static electricity to the radiation receiving device through radiation. At this time, the signal receiving pin can receive the static electricity signal of the radiation receiving device and feed it back to the processing chip of the main control board. After receiving this signal, the processing chip controls the atomizing plate to continue working and form continuous atomization.

[0010] When there is no atomizing liquid at the bottom of the cavity above the radiation receiving device, an open circuit is formed in the atomizing plate, the atomizing liquid, and the radiation receiving device. The electrostatic signal of the atomizing plate cannot be conducted to the radiation receiving device. At this time, the signal receiving pin cannot receive the electrostatic signal of the radiation receiving device, and the electrostatic signal cannot be fed back to the processing chip of the main control board. After the processing chip cannot receive the signal, it controls the atomizing plate to stop working and end the atomization.

[0011] Preferably, the main control board is equipped with a monitoring module for monitoring electrostatic voltage, which is electrically connected to the processing chip. The monitoring module is electrically connected to the signal receiving spring, and is used to receive the electrostatic signal from the signal receiving spring and feed it back to the processing chip.

[0012] Preferably, a groove is provided on the outer side of the bottom of the atomizing cup, and a radiation receiving device is disposed in the groove. A fixing member is provided at the bottom of the groove outside the radiation receiving device. A positioning post is provided in the groove, and positioning holes corresponding to the positions of the positioning post are provided on the radiation receiving device and the fixing member. The radiation receiving device and the fixing member are sequentially inserted into the positioning post through the positioning holes, and the radiation receiving device is in close contact with the bottom of the atomizing cup.

[0013] By sealing the positioning hole and positioning post with sealant, the fixing component can fix the radiation receiving device in the container, and the radiation receiving device is in close contact with the bottom of the atomizing cup.

[0014] Preferably, a silicone sleeve is provided around the outer periphery of the atomizing plate, a gasket is provided between the atomizing plate and the atomizing nozzle, and wires are led out from the positive and negative contacts of the atomizing plate, which are electrically connected to the positive and negative spring pins through the wires.

[0015] Preferably, a signal contact is provided on one side of the radiation receiving device, and the signal receiving spring is in contact with the signal contact.

[0016] Preferably, the bottom of the fixing component is provided with a fastening groove, and the top of the machine body is provided with a fastening tooth that cooperates with the fastening groove of the fixing component. The bottom end of the fastening tooth has a pushing block, and a pushing button is provided on one side of the pushing block. One end of the pushing button extends out of the side wall of the machine body.

[0017] A working indicator light is provided on one side of the machine body to display the working status, and the main control board and the working indicator light are electrically connected.

[0018] Preferably, the machine body also has a built-in battery that is electrically connected to the main control board.

[0019] The main control board is electrically connected to the signal receiving spring, positive and negative spring, start button and working indicator light.

[0020] This invention monitors the remaining liquid level in a handheld atomizer using electrostatic radiation conduction, and controls the atomizing plate's operation based on the monitoring results. A radiation receiver is installed at the bottom of the atomizing cup. The electrostatic radiation signal generated during the atomizing plate's operation is conducted through the atomizing liquid and the receiver to a signal receiving pin on the device, and then transmitted to a processing chip. This chip uses the signal to determine the presence of atomizing liquid in the atomizing cup, thus controlling the atomizing plate's operation. This invention avoids the traditional method of contact between a metal probe and the atomizing liquid, employing a non-contact method for detecting liquid levels. This eliminates the need to clean the metal probe and prevents the radiation receiver from becoming contaminated with atomizing liquid over long-term use, ensuring long-term accuracy and extending the lifespan of the atomizing head assembly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the handheld atomizer structure of the present invention.

[0022] Figure 2 This is a partial structural diagram of a handheld atomizer.

[0023] Figure 3 This is a schematic diagram of the internal structure of a handheld atomizer.

[0024] Figure 4This is a schematic diagram of the bottom structure of the atomizing cup.

[0025] Figure 5 This is a schematic diagram of the bottom structure of the atomizing head assembly.

[0026] Figure 6 This is a schematic diagram of the atomizing plate structure of the present invention.

[0027] Figure 7 This is an exploded view of the atomizing head assembly of the present invention.

[0028] In the diagram: 1. Main body; 2. Atomizing head assembly; 3. Start button; 4. Working indicator light; 5. Atomizing cup; 6. Atomizing nozzle; 7. Fixing plate; 8. Radiation receiving device; 9. Signal contact; 10. Container; 11. Fixing post; 12. Positioning hole; 13. Cavity; 14. Fastening groove; 15. Gasket; 16. Silicone collar; 17. Atomizing plate; 18. Cup lid; 19. Sealing ring; 20. Fastening teeth; 21. Push block; 22. Push button; 23. Main control board; 24. Built-in battery; 25. Positive and negative electrode springs; 26. Signal receiving spring. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-7 A voltage monitoring and control method for a handheld atomizer includes an atomizer body 1, an atomizing head assembly 2 mounted on top of the body 1, a start button 3 mounted on one side of the body 1, and a main control board 23 mounted inside the body. The main control board 23 is connected to a power supply and has a processing chip. The atomizing head assembly 2 further includes an atomizing cup 5, which has a cavity 13 for holding atomizing liquid. An atomizing nozzle 6 is provided at the front end of the atomizing cup 5. An atomizing plate 17 is provided between the cavity 13 and the atomizing nozzle 6. The atomizing plate 17 has positive and negative contacts. Positive and negative contact springs 25 are provided at the upper end of the body 1 and are electrically connected to the positive and negative contacts of the atomizing plate 17. A radiation receiving device 8 is provided on the outer side of the bottom of the atomizing cup 5 below the cavity 13. A signal receiving spring 26 is provided at the upper end of the body 1 for receiving radiation signals from the radiation receiving device 8. The main control board 23 is connected to the positive and negative contact springs 25 and the signal receiving spring 26. Electrically connected to start button 3, the voltage monitoring and control method is as follows:

[0031] The atomizing liquid is placed in the cavity. Press the start button 3, and the main control board 23 is powered on and starts working. The atomizing plate 17 starts atomizing through the positive and negative electrode spring pins 25. The atomizing liquid in the cavity 13 is atomized and sprayed out from the atomizing nozzle 6. At this time, the atomizing plate 17 will generate static electricity during the atomization process.

[0032] When there is atomizing liquid at the bottom of the cavity 13 above the radiation receiving device 8, a passage is formed in the atomizing plate 17, the atomizing liquid and the radiation receiving device 8. The atomizing liquid can conduct the static electricity generated by the atomizing plate 17 and conduct the static electricity to the radiation receiving device 8 through radiation. At this time, the signal receiving pin 26 can receive the static electricity signal of the radiation receiving device 8 and feed it back to the processing chip of the main control board 23. After receiving this signal, the processing chip controls the atomizing plate 17 to continue to work and form continuous atomization.

[0033] When there is no atomizing liquid at the bottom of the cavity 13 above the radiation receiving device 8, an open circuit is formed in the atomizing plate 17, the atomizing liquid, and the radiation receiving device 8. The electrostatic signal of the atomizing plate 17 cannot be conducted to the radiation receiving device 8. At this time, the signal receiving pin 26 cannot receive the electrostatic signal of the radiation receiving device 8. The electrostatic signal cannot be fed back to the processing chip of the main control board 23. After the processing chip cannot receive the signal, it controls the atomizing plate 17 to stop working and end the atomization.

[0034] The area at the bottom of the atomizing cup where the radiation receiver is placed is thinner than other areas to facilitate electrostatic radiation conduction. The radiation receiver is fixedly installed at the bottom of the atomizing cup and can be either an active or passive device.

[0035] In this embodiment, the main control board 23 is provided with a monitoring module for monitoring electrostatic voltage, which is electrically connected to the processing chip. The monitoring module is electrically connected to the signal receiving spring 26. The monitoring module is used to receive the electrostatic signal of the signal receiving spring 26 and feed it back to the processing chip.

[0036] In this embodiment, a groove 10 is provided on the outer side of the bottom of the atomizing cup 5, and the radiation receiving device 8 is disposed in the groove 10. A fixing member 7 is provided at the bottom of the groove 10 located outside the radiation receiving device 8. A positioning post 11 is provided in the groove 10. The radiation receiving device 8 and the fixing member 7 are provided with positioning holes 12 corresponding to the positions of the positioning post 11. The radiation receiving device 8 and the fixing member 7 are sequentially fitted into the positioning post 11 through the positioning holes 12, and the radiation receiving device is in close contact with the bottom of the atomizing cup 5.

[0037] The fixing component 7 is used to fix the radiation receiving device. Sealant is used to seal the positioning hole 12 and the positioning post, allowing the fixing component 7 to fix the radiation receiving device within the receiving groove 10. The radiation receiving device 8 is tightly attached to the bottom of the atomizing cup 5. The radiation receiving device 8 can be a sheet-like receiving device or a radiation receiving device of other shapes and structures. Figure 6As shown, the radiation receiving device 8 is a sheet-shaped receiving device, or more specifically, a metal sheet.

[0038] In this embodiment, a silicone sleeve 16 is provided around the outer periphery of the atomizing plate 17, a gasket 15 is provided between the atomizing plate 17 and the atomizing nozzle 6, and wires are led out from the positive and negative contacts of the atomizing plate 17, which are electrically connected to the positive and negative spring pins 26 through the wires.

[0039] In this embodiment, a signal contact 9 is provided on one side of the radiation receiving device 8, and the signal receiving spring pin 26 is in contact with the signal contact.

[0040] In this embodiment, the bottom of the fixing member 7 is provided with a fastening groove 14, and the top of the body 1 is provided with a fastening tooth 20 that cooperates with the fastening groove 14 of the fixing member 7. The bottom end of the fastening tooth 20 has a pushing block 21, and a pushing button 22 is provided on one side of the pushing block 21. One end of the pushing button 22 extends out of the side wall of the body 1.

[0041] A working indicator light 4 for displaying the working status is provided on one side of the machine body 1, and the main control board and the working indicator light 4 are electrically connected.

[0042] In this embodiment, the body 1 is also equipped with a built-in battery 24 that is electrically connected to the main control board 23.

[0043] The control board 23 is electrically connected to the signal receiving spring 26, the positive and negative spring 25, the start button 3, and the working indicator light 4.

[0044] Working principle: Pressing the start button 3 controls the processing chip inside the mainboard 23 to execute instructions, providing high-frequency electrical energy to the positive and negative electrode springs. The atomizing plate 17 vibrates under the drive of this high-frequency electrical energy, causing the atomizing liquid inside the cavity 13 to be ejected from the micro-mesh of the atomizing plate 17 and then through the atomizing nozzle 6 to produce a large amount of small-particle smoke. During operation, the atomizing plate generates static electricity, which is conducted through the atomizing liquid to the radiation receiving device 8. The signal receiving spring 26 receives the radiation signal from the radiation receiving device 8 and feeds it back to the processing chip on the mainboard 23 for processing. The chip determines the amount of atomizing liquid in the cavity 13 based on whether it receives the radiation signal, thereby achieving the purpose of monitoring the amount of atomizing liquid in the cavity 13. If the processing chip can receive the radiation signal, it indicates that there is still atomizing liquid in the cavity 13, and the processing chip controls the atomizing plate 17 to continue working. If it cannot receive the radiation signal, it indicates that there is no atomizing liquid in the cavity 13, and the processing chip controls the atomizing plate 17 to stop working. At this time, the processing chip will automatically shut down after a delay to ensure that it does not burn dry or empty, thus achieving both monitoring of the amount of atomizing liquid and ensuring the normal operation of the atomizer.

[0045] This invention utilizes the principle of electrostatic radiation conduction, establishing an electrostatic radiation transfer relationship through an upper layer of atomizing liquid, a middle layer of spacers (i.e., the bottom of the atomizing cup), and a lower layer of radiation receiving device. A radiation receiving device 8 is installed at the bottom of the atomizing cup 5. The electrostatic radiation signal generated during the operation of the atomizing plate 17 is conducted through the atomizing liquid and the radiation receiving device 8 to the signal receiving pin 26 on the main body 1, and then transmitted to the processing chip. This provides the processing chip with the basis for determining whether there is atomizing liquid in the atomizing cup 5, thereby controlling the working state of the atomizing plate 17. This invention avoids the traditional method of contact between the metal probe and the atomizing liquid, employing a non-contact method for detecting the atomizing liquid level. This eliminates the need to clean the metal probe and prevents the radiation receiving device from being contaminated by the atomizing liquid during long-term use, ensuring long-term detection accuracy and improving the service life of the atomizing head assembly.

[0046] This invention monitors the amount of atomizing liquid in the cavity 13 through non-contact electrostatic radiation induction, reducing drug contamination and achieving non-contact monitoring of the atomizing liquid level in a handheld atomizer. This allows for convenient and efficient atomization and prevents the risk of dry burning. The atomizer body can be opened by rotating the cup lid around the hinge axis to facilitate liquid pouring. The sealing ring provides a sealing connection, enabling convenient opening and liquid pouring of the handheld non-contact voltage monitoring atomizer, thus improving the ease of liquid pouring.

[0047] In use, the built-in battery 24 powers the control motherboard 23, the cup lid 18 is opened, the atomizing liquid is poured into the cavity (13) of the atomizing cup body 5, the start button 3 is turned on, the processing chip of the control motherboard 23 executes the instruction, and the control motherboard 23 provides high-frequency electrical energy of about 108KHZ to the positive and negative electrode springs 11. The positive and negative electrode springs 11 transmit the high-frequency electrical energy signal to the atomizing plate 17. The atomizing plate 17 vibrates under the drive of high-frequency electrical energy, and the atomizing liquid in the cavity 13 is ejected from the micro-mesh of the atomizing plate 17 and then produces a large number of small particulate smoke through the atomizing nozzle 6, thus achieving the atomization effect. On the other hand, the atomizing plate 17 generates static electricity when it is working. The static electricity is conducted to the radiation receiving device 8 through the atomizing liquid as the conduction medium. There is only a thin layer at the bottom of the atomizing cup body 5 between the atomizing liquid and the radiation receiving device 8. The radiation receiving device 8 is placed close to the bottom of the atomizing cup 5, so that the electrostatic signal is almost unaffected during conduction and radiation, which improves the signal receiving sensitivity of the radiation receiving device 8. The radiation receiving device 8 feeds back the electrostatic signal to the signal receiving spring 26, which feeds back the signal to the processing chip on the control motherboard 3. The processing chip monitors whether there is atomizing liquid in the cavity 13 based on the received signal. When the processing chip detects that there is atomizing liquid in the cavity 13, it will control the atomizing plate 17 to work normally. When the processing chip detects that there is no atomizing liquid in the cavity 13, it will control the atomizing plate 17 to stop working. At this time, the processing chip will automatically shut down after a delay to ensure that it does not dry-burn or burn dry. This not only monitors the amount of atomizing liquid, but also ensures the normal operation of the atomizer.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A voltage monitoring and control method for a handheld atomizer, comprising an atomizer body, an atomizing head assembly mounted on the top of the body, a start button mounted on the side of the body, and a main control board mounted inside the body. The main control board is connected to a power supply and has a processing chip. The atomizing head assembly further includes an atomizing cup, which has a cavity for holding atomized liquid. An atomizing nozzle is located at the front end of the atomizing cup. An atomizing plate is located between the cavity and the atomizing nozzle. The atomizing plate has positive and negative contacts. Positive and negative contact springs electrically connected to the positive and negative contacts of the atomizing plate are located at the top of the body. A radiation receiving device is located on the outer side of the bottom of the atomizing cup below the cavity. A signal receiving contact spring for receiving radiation signals from the radiation receiving device is located at the top of the body. The main control board is electrically connected to the positive and negative contact springs, the signal receiving contact spring, and the start button. The voltage monitoring and control method is as follows: Fill the cavity with atomizing liquid, press the start button, and the main control board will be powered on and start working. The atomizing plate will start atomizing through the positive and negative electrode springs, and the atomizing liquid in the cavity will be atomized and sprayed out from the atomizing nozzle. At this time, the atomizing plate will generate induced electricity during the atomization process. When there is atomizing liquid at the bottom of the cavity above the radiation receiving device, a passage is formed in the atomizing plate, the atomizing liquid and the radiation receiving device. The atomizing liquid can conduct the induced electricity generated by the atomizing plate and conduct the induced electricity to the radiation receiving device through radiation. At this time, the signal receiving pin can receive the induced electricity signal of the radiation receiving device and feed it back to the processing chip of the main control board. After receiving this signal, the processing chip controls the atomizing plate to continue working and form continuous atomization. When there is no atomizing liquid at the bottom of the cavity above the radiation receiving device, an open circuit is formed in the atomizing plate, the atomizing liquid and the radiation receiving device. The induced electrical signal of the atomizing plate cannot be conducted to the radiation receiving device. At this time, the signal receiving pin cannot receive the induced electrical signal of the radiation receiving device. The induced electrical signal cannot be fed back to the processing chip of the main control board. After the processing chip cannot receive the signal, it controls the atomizing plate to stop working and end the atomization. The atomizing cup body has a groove on the outer side of its bottom, and a radiation receiving device is placed in the groove. A fixing plate is set at the bottom of the groove outside the radiation receiving device. A fixing post is set in the groove. The radiation receiving device and the fixing plate are provided with positioning holes corresponding to the positions of the fixing post. The radiation receiving device and the fixing plate are sequentially fitted into the fixing post through the positioning holes, and the radiation receiving device is in close contact with the bottom of the atomizing cup body. A silicone sleeve is fitted around the outer periphery of the atomizing plate. A gasket is set between the atomizing plate and the atomizing nozzle. Wires are led out from the positive and negative contacts of the atomizing plate and are electrically connected to the positive and negative spring pins through the wires.

2. The voltage monitoring and control method for a handheld atomizer according to claim 1, characterized in that: The main control board is equipped with a monitoring module that is electrically connected to the processing chip for monitoring the induced voltage. The monitoring module is electrically connected to the signal receiving spring pin and is used to receive the induced voltage signal from the signal receiving spring pin and feed it back to the processing chip.

3. The voltage monitoring and control method for a handheld atomizer according to claim 1, characterized in that: One side of the radiation receiving device is provided with a signal contact point, and the signal receiving spring pin is set to contact the signal contact point.

4. The voltage monitoring and control method for a handheld atomizer according to claim 1, characterized in that: The bottom of the fixing plate is provided with a fastening groove, and the top of the machine body is provided with a fastening tooth that cooperates with the fastening groove of the fixing plate. The bottom of the fastening tooth has a push block, and a push button is provided on one side of the push block. One end of the push button extends out of the side wall of the machine body.

5. The voltage monitoring and control method for a handheld atomizer according to claim 1, characterized in that: A working indicator light for displaying the working status is provided on one side of the machine body, and the main control board and the working indicator light are electrically connected.

6. The voltage monitoring and control method for a handheld atomizer according to claim 1, characterized in that: The machine body also has a built-in battery that is electrically connected to the main control board.

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