Atomizing device and oil supply control circuit thereof

Abstract

The utility model discloses an atomization equipment and oil supply control circuit thereof, and the oil supply control circuit includes switch module, voltage stabilizing module, position sensing module, motor drive module and control module, the control module is used to receive the switch information of switch module, and when detecting that the atomization equipment is in the preset posture through the position sensing module, the motor drive module is controlled to make the motor rotate in the predetermined direction, to realize oil injection or stop oil injection, the scheme can detect whether to allow oil injection according to the equipment space posture after the user operation, and the oil injection is driven through the motor and is accurately controlled to open and close, effectively avoids the problem that the oil liquid seeps into the heating assembly due to the excessive oil storage pressure, significantly improves the safety and reliability of oil supply, prolongs the service life of the equipment, and improves the user experience.

Description

Technical Field

[0001] This utility model relates to the field of atomizing equipment technology, and in particular to an atomizing device and its oil supply control circuit. Background Technology

[0002] With the continuous development of atomizing devices, a large number of atomizing devices with replaceable oil tanks have emerged in the market. However, in existing technologies, the oil filling process mostly relies on manual operation by the user or gravity-based oil transfer, lacking an automated oil filling control mechanism, resulting in an uncontrolled oil filling process. In addition, due to the large oil capacity of the upper oil tank, under the influence of gravity pressure, oil often seeps into the heating element wick when not in use, easily causing oil seepage and leakage problems, affecting user experience and product lifespan. Utility Model Content

[0003] This utility model provides an atomizing device and its oil supply control circuit to solve the above-mentioned technical problems.

[0004] The first aspect of this utility model provides an oil supply control circuit for an atomizing device, comprising:

[0005] Switch module;

[0006] A voltage regulator module receives a power supply voltage and regulates the power supply voltage to output a first voltage.

[0007] The position sensing module receives the first voltage at its power input terminal and is used to detect the spatial attitude information of the atomizing device;

[0008] The motor drive module receives the first voltage at its power input terminal and is connected to the motor at its signal output terminal. It is used to drive the motor to rotate forward or in reverse to open or close the oil filling valve of the oil storage tank.

[0009] The control module receives the first voltage at its power input terminal, its first signal input terminal is connected to the signal output terminal of the switch module, its second signal input terminal is connected to the signal output terminal of the position sensing module, and its signal output terminal is connected to the control terminal of the motor drive module.

[0010] The control module is used to control the motor drive module to rotate the motor in a predetermined direction when it receives the switch information from the switch module and detects that the atomizing device is in a preset posture through the position sensing module, so as to realize oil filling or stop oil filling.

[0011] Optionally, the third signal input terminal of the control module is connected to the signal output terminal of the motor drive module for acquiring current signals and controlling the motor drive module to drive the motor according to the current signals.

[0012] Optionally, the switch module is a push-button switch, one end of which is the signal output terminal of the switch module, and the other end of which is grounded.

[0013] Optionally, the voltage regulator module is a low-voltage linear regulator, which receives the power supply voltage at its power input terminal and outputs a first voltage at its power output terminal.

[0014] Optionally, the position sensing module is a digital triaxial position sensor, and the signal output terminal of the digital triaxial position sensor is connected to the second signal input terminal of the control module via I2C communication.

[0015] Optionally, the motor drive module includes a single-channel H-bridge driver chip, a sampling module, a first filtering module, and a second filtering module. One end of the sampling module is the power input terminal of the motor drive module, and the other end of the sampling module is connected to one end of the first filtering module and the power input terminal of the single-channel H-bridge driver chip, forming the signal output terminal of the motor drive module. The other end of the first filtering module is grounded. One end of the second filtering module is connected to the first output terminal of the single-channel H-bridge driver chip, and the other end of the second filtering module is connected to the second output terminal of the single-channel H-bridge driver chip. The first control terminal and the second control terminal of the single-channel H-bridge driver chip constitute the control terminal of the motor drive module.

[0016] Optionally, the control module sends control signals to the first and second control terminals of the single-channel H-bridge driver chip, respectively, so that when the current reaches a preset value during the forward or reverse rotation of the motor, the single-channel H-bridge driver chip controls the motor to stop rotating.

[0017] Optionally, the sampling module is a sampling resistor, one end of the sampling resistor is one end of the sampling module, and the other end of the sampling resistor is the other end of the sampling module;

[0018] The first filtering module is a first capacitor, one end of the first capacitor is one end of the first filtering module, and the other end of the first capacitor is the other end of the first filtering module;

[0019] The second filter module is a second capacitor, one end of the second capacitor is one end of the second filter module, and the other end of the second capacitor is the other end of the second filter module.

[0020] A second aspect of this utility model provides an atomizing device, which includes an oil supply control circuit, a motor, and an oil storage tank provided in the first aspect, wherein the motor is connected to an oil injection valve in the oil storage tank.

[0021] Optionally, the oil storage tank includes an upper oil storage tank and a lower oil storage tank. When the motor opens the oil injection valve, the upper oil storage tank injects oil into the lower oil storage tank.

[0022] The technical advantages of this utility model embodiment are as follows: By setting up a switch module, a voltage stabilizing module, a position sensing module, a motor drive module, and a control module, intelligent control of the oil filling process of the atomizing device is realized; compared with the existing method of oil filling relying on manual or gravity, this solution can determine whether oil filling is allowed based on the spatial posture of the device after user operation, and precisely control the opening and closing of oil filling by driving the oil filling valve with a motor, effectively avoiding the problem of oil seeping into the heating components due to excessive oil storage pressure, significantly improving the safety and reliability of oil supply, extending the service life of the device, and improving the user experience. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the oil supply control circuit of an atomizing device provided in Embodiment 1 of this utility model;

[0025] Figure 2 This is a circuit diagram of the switching module of the oil supply control circuit of an atomizing device provided in Embodiment 1 of this utility model;

[0026] Figure 3 This is a circuit diagram of a voltage stabilizing module for an oil supply control circuit of an atomizing device provided in Embodiment 1 of this utility model;

[0027] Figure 4 This is a circuit diagram of the position sensing module of the oil supply control circuit of an atomizing device provided in Embodiment 1 of this utility model;

[0028] Figure 5 This is a schematic diagram of the motor drive module of the oil supply control circuit of an atomizing device provided in Embodiment 1 of this utility model;

[0029] Figure 6 This is a circuit diagram of the motor drive module of the oil supply control circuit of an atomizing device provided in Embodiment 1 of this utility model;

[0030] Figure 7 This is a circuit diagram of the control module of the oil supply control circuit of an atomizing device provided in Embodiment 1 of this utility model;

[0031] In the diagram: 101, Switching module; 102, Voltage regulator module; 103, Position sensing module; 104, Motor drive module; 105, Control module; 106, Motor; 201, Sampling module; 202, Single-channel H-bridge driver chip; 203, First filter module; 204, Second filter module. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0033] It should be understood that this invention can be embodied in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of this invention to those skilled in the art. In the drawings, for clarity, the dimensions of layers and regions, as well as their relative dimensions, may be exaggerated. The same reference numerals denote the same elements throughout.

[0034] It should be understood that when an element or layer is referred to as "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc., may be used to describe various elements, components, areas, layers, and / or portions, these elements, components, areas, layers, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, area, layer, or portion from another element, component, area, layer, or portion. Therefore, without departing from the teachings of this utility model, the first element, component, area, layer, or portion discussed below may be referred to as the second element, component, area, layer, or portion.

[0035] To fully understand this utility model, detailed structures and steps will be presented in the following description to illustrate the technical solution proposed by this utility model. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0036] Example 1

[0037] This embodiment provides an oil supply control circuit for an atomizing device, such as... Figure 1As shown, it includes:

[0038] Switch module 101;

[0039] The voltage regulator module 102 receives the power supply voltage B+ and uses it to regulate the power supply voltage B+ and output the first voltage.

[0040] The position sensing module 103 receives a first voltage V0 at its power input terminal, which is used to detect the spatial attitude information of the atomizing device.

[0041] The motor drive module 104 receives a first voltage V0 at its power input terminal and is connected to the motor at its signal output terminal. It is used to drive the motor to rotate forward or in reverse to open or close the oil filling valve of the oil storage tank.

[0042] The control module 105 has a power input terminal that receives a first voltage V0, a ​​first signal input terminal that is connected to the signal output terminal of the switch module 101, a second signal input terminal that is connected to the signal output terminal of the position sensing module 103, and a signal output terminal that is connected to the control terminal of the motor drive module 104.

[0043] The control module 105 is used to control the motor drive module 104 to rotate the motor 106 in a predetermined direction when it receives the switch information from the switch module 101 and detects that the atomizing device is in a preset posture through the position sensing module 103, so as to realize oil filling or stop oil filling.

[0044] The switching module 101 receives user-input oil supply command signals as trigger conditions to start or stop the oil filling process. The switching module 101 includes, but is not limited to, the following structures: push-button switch, capacitive touch switch, Hall effect switch, or NFC wake-up module. When the user wants to fill or stop the oil filling in the oil tank, the switching module 101 is triggered, and the module outputs a corresponding high / low level signal to the control module 105. The voltage regulator module 102 receives the power supply voltage B+ from the main power supply, stabilizes the power supply voltage B+, and outputs a first voltage V0 for use by subsequent functional modules. The voltage regulator module 102 includes, but is not limited to, the following structures: LDO linear regulator, DC-DC step-down chip, etc. The voltage regulator module 102 provides a stable operating voltage (e.g., 3V) to drive the control module 105, position sensor, and motor drive module 104, ensuring reliable system operation. The position sensing module 103 is used to monitor the spatial attitude of the atomizing device in real time and output a status signal reflecting the attitude to the control module 105. The position sensing module 103 includes, but is not limited to, the following structures: a three-axis accelerometer, a six-axis IMU module (accelerometer + gyroscope), etc. The position sensing module 103 is used to determine whether the device is in a spatial attitude that allows oil filling (e.g., horizontal placement, upward placement, etc.) to prevent oil leakage caused by accidental oil filling when the device is tilted or inverted. The motor drive module 104 is used to drive the connected motor 106 to rotate forward or backward according to the control signal of the control module 105, so as to control the opening and closing of the oil filling valve of the oil reservoir. The motor drive module 104 includes, but is not limited to, the following structures: an H-bridge motor drive chip or a MOSFET array. The motor drive module 104 drives the micro motor to run according to the PWM control signal or the direction control signal to open or close the oil filling valve. Forward rotation indicates that the oil filling channel is open, and reverse rotation indicates that the oil filling channel is closed. The control module 105 is used for logic judgment and output control signals, and is the core control unit of the system. The control module 105 can be a microcontroller unit (MCU). The power supply terminal of the control module 105 receives a first voltage as V0 as the working power supply. The first signal input terminal receives the oil supply trigger signal from the switch module 101. The second signal input terminal receives the attitude signal from the position sensing module 103. When the switch module 101 issues an oil supply command and the equipment attitude meets the preset conditions (such as being placed facing upwards), it outputs a control signal to the motor drive module 104 to control the motor 106 to rotate forward or reverse, thereby realizing oil injection or stopping oil injection.

[0045] The working process of this embodiment includes: the user triggers the switch module 101, for example, by pressing the oil filling button; the switch module 101 sends a signal to the control module 105; the control module 105 reads the posture information output by the current position sensing module 103; if it is determined that the current device is in a preset oil filling posture (such as upright or horizontal placement), the control module 105 outputs a control signal to the motor drive module 104; the motor drive module 104 drives the motor to rotate according to the control signal, opens the oil filling valve, and realizes oil supply; if the oil filling end condition is detected (such as the oil filling time reaching a preset value, the user releasing the switch, etc.), the control module 105 instructs the motor to rotate in the opposite direction and closes the oil filling valve; the system enters a standby or hibernation state, waiting for the next oil filling command.

[0046] The technical advantages of the solution provided in this embodiment are as follows: By setting up a switch module 101, a voltage stabilizing module 102, a position sensing module 103, a motor drive module 104, and a control module 105, intelligent control of the oil filling process of the atomizing device is realized. Compared with the existing method of oil filling relying on manual or gravity, this solution can determine whether oil filling is allowed based on the spatial posture of the device after user operation, and precisely control the opening and closing of oil filling by driving the oil filling valve with a motor. This effectively avoids the problem of oil seeping into the heating components due to excessive oil storage pressure, significantly improves the safety and reliability of oil supply, extends the service life of the device, and improves the user experience.

[0047] In one implementation, the third signal input terminal of the control module 105 is connected to the signal output terminal of the motor drive module 104 for acquiring current signals and controlling the motor drive module 104 to drive the motor 106 according to the current signals.

[0048] The control module 105 further includes a third signal input terminal, which is used to receive feedback signals from the motor drive module 104, which can be current sampling signals. Preferably, a current sampling resistor is provided in the motor drive module 104, which is connected in series in the motor circuit to convert the operating current through the motor into a voltage signal. This voltage signal is conditioned and output as a feedback signal to the control module 105. The control module 105 collects the above-mentioned current feedback signal through its third signal input terminal and compares it with a preset threshold to determine the current operating state of the motor: when the motor current is detected to gradually rise and exceed the set threshold, it is determined that the motor is in a stall state, indicating that the oil injection valve has turned to the mechanical limit position or the oil injection is completed. At this time, the control module 105 sends a stop control signal to the motor drive module 104 to stop the motor from working; when the motor is in a normal operating state (the current is within the normal range), the control module 105 allows it to continue to inject oil; after the oil injection is completed, the control module 105 can control the motor to rotate in reverse again to close the oil injection valve, and then use the current signal again to determine whether it is completely closed.

[0049] The technical advantages of this embodiment are as follows: by introducing a current acquisition function into the control module 105, real-time monitoring and intelligent judgment of the motor's operating status can be achieved. By identifying whether the motor is in a stalled state, the opening and closing of the oil injection valve can be precisely controlled to avoid over-oiling or mechanical damage, effectively improving the reliability and accuracy of oil injection control, and enhancing the system's intelligence and safety.

[0050] As one implementation method, such as Figure 2 As shown, the switch module 101 is a push-button switch SW. One end of the push-button switch SW is the signal output terminal of the switch module 101, and the other end of the push-button switch SW is grounded.

[0051] The push-button switch SW is used to receive user operation commands and serves as the start trigger for the entire fuel supply control circuit. When the user presses the push-button switch SW, SW closes, causing the signal SW1_WK output from its signal output terminal to change from a high level to a low level. This level change serves as the trigger signal for the control module 105.

[0052] The technical advantages of this embodiment are: the button switch has a simple structure, sensitive response, is easy to integrate, and is suitable for the control and operation of portable atomizing devices.

[0053] In one implementation, the voltage regulator module 102 is a low-voltage linear regulator. The power input terminal of the low-voltage linear regulator receives the power supply voltage, and the power output terminal outputs a first voltage.

[0054] The low-voltage linear regulator is used to regulate the external power supply (such as the 3.7V output from a lithium battery) to a stable low voltage (such as 3.0V) required by the system for use by the position sensing module 103, control module 105, and motor drive module 104. Its functions are: to convert unstable or high input voltages into constant output voltages, ensuring stable operation of subsequent circuits; to reduce output voltage ripple, effectively minimizing electromagnetic interference to sensitive devices such as the MCU and sensors; and to unify the power supply reference, improving the overall stability and consistency of the circuit.

[0055] As an example, such as Figure 3 As shown, the low-voltage linear regulator includes chip U1, resistor R12, capacitor C5, and capacitor C6. The VIN pin of chip U1 is connected to one end of resistor R12 and one end of capacitor C5, respectively. The other end of resistor R12 is connected to the power supply voltage B+. The GND pin of chip U1, the other end of capacitor C5, and the other end of capacitor C6 are all connected to ground. The VOUT pin of chip U1 and one end of capacitor C6 are connected together to output a 3.0V voltage.

[0056] The technical advantage of this embodiment is that by setting a low-voltage linear regulator, the input power supply voltage is stabilized to the first voltage required by the system, ensuring that the position sensing module 103, control module 105 and motor drive module 104 work reliably under low noise and stable voltage conditions, thereby improving the stability, electromagnetic compatibility and service life of the entire fuel supply control system.

[0057] In one implementation, the position sensing module 103 is a digital triaxial position sensor, and the signal output terminal of the digital triaxial position sensor is connected to the second signal input terminal of the control module 105 via I... 2 C communication connection.

[0058] The digital triaxial position sensor is used to detect the attitude information of the atomizing device in three-dimensional space in real time, including its tilt, inverted, and horizontal positions. This sensor integrates triaxial acceleration detection, outputting acceleration data in the X, Y, and Z directions, and transmitting it via I... 2 The C-bus communicates with the control module 105, transmitting attitude information to the control module 105 for analysis and judgment. The digital triaxial position sensor determines whether the equipment is currently in a normal operating posture by detecting the acceleration values ​​of each axis; when it detects that the equipment is in a non-preset posture (such as inverted), it sends status information to the control module 105, preventing the system from performing oiling operations and improving operational safety; via I... 2 The C interface communicates stably with the control module 105, supports low-power operation, and is suitable for portable device applications.

[0059] As an example, such as Figure 4 As shown, the SCX pin of the digital three-axis position sensor U3 is connected to one end of resistor R13. The other end of resistor R13 is connected to one end of resistor R16, one end of capacitor C8, and the VDD pin of the digital three-axis position sensor U3, and receives a 3.0V voltage. The other end of capacitor C8 is grounded. The NC pin of the digital three-axis position sensor U3 and one end of resistor R14 are connected together to receive a 3.0V voltage. The CS pin of the digital three-axis position sensor U3 is connected to the other end of resistor R14.

[0060] The technical advantages of this embodiment are as follows: by setting a digital three-axis position sensor, real-time monitoring of the spatial attitude of the atomizing device can be achieved; the control module 105 can determine whether the device is in a preset working state based on the attitude information fed back by the sensor, and allow the oil filling operation only when the conditions are met, thereby effectively avoiding accidental triggering of oil filling under the condition of device inversion or abnormality, and improving the safety and intelligence level of the oil supply control system.

[0061] As one implementation method, such as Figure 5As shown, the motor drive module 104 includes a single-channel H-bridge driver chip 202, a sampling module 201, a first filtering module 203, and a second filtering module 204. One end of the sampling module 201 is the power input terminal of the motor drive module 104, and the other end of the sampling module 201 is connected to one end of the first filtering module 203 and the power input terminal of the single-channel H-bridge driver chip, forming the signal output terminal of the motor drive module 104. The other end of the first filtering module 203 is grounded. One end of the second filtering module 204 is connected to the first output terminal of the single-channel H-bridge driver chip 202, and the other end of the second filtering module 204 is connected to the second output terminal of the single-channel H-bridge driver chip 202. The first control terminal and the second control terminal of the single-channel H-bridge driver chip 202 constitute the control terminal of the motor drive module 104.

[0062] The single-channel H-bridge driver chip 202 provides forward and reverse driving capability for the motor. It has a first control terminal and a second control terminal, which receive PWM control signals or level signals from the control module 105, respectively. Different logic combinations control the polarity of the output terminal, thereby driving the motor to rotate forward or in reverse. This chip operates at a voltage range of 2V to 6V, has a continuous output current capability of 1.1A, and features over-temperature protection. The sampling module 201 monitors the operating current of the motor 106. One end serves as the power input terminal of the entire motor drive module 104, connected to the first voltage output by the voltage regulator module 102; the other end is connected to both the power input terminals of the first filter module 203 and the single-channel H-bridge driver chip 202, forming the signal output terminal of the motor drive module 104, used to feed back the current change signal to the control module 105 for acquisition and analysis. The sampling module 201 is typically composed of a low-resistance current sampling resistor. The first filtering module 203 is used to filter and reduce noise in the voltage signal output by the sampling module 201 to avoid high-frequency interference from the moment the motor starts or stops affecting the current sampling accuracy. It preferably uses electrolytic capacitors or surface-mount ceramic capacitors, with one end connected to the sampling module 201 and the other end grounded. The second filtering module 204 is connected between the two outputs of the single-channel H-bridge driver chip 202. Its function is to buffer and filter the bidirectional PWM signal of the drive motor, suppress voltage spikes caused by the motor's back electromotive force, and protect the circuit for stable operation. It can be implemented using a differential RC filter or a low-ESR capacitor symmetrical structure.

[0063] As an example, such as Figure 6As shown, sampling module 201 is a sampling resistor R18, with one end of R18 connected to one end of sampling module 201 and the other end connected to the other end of sampling module 201. First filter module 203 is a first capacitor C11, with one end of C11 connected to one end of first filter module 203 and the other end connected to the other end of first filter module 203. Second filter module 204 is a second capacitor C10, with one end of C10 connected to one end of second filter module 204 and the other end connected to the other end of second filter module 204. One end of resistor R17 is connected to the other end of sampling resistor R18, one end of first capacitor C11, and the VCC pin of single-channel H-bridge driver chip U2. The other end of resistor R17 is connected to control module 105. This circuit uses a low-voltage single-channel H-bridge driver chip GC9111, which can provide a continuous output current of 1.1A and operates at 2V-6V. It has PWM input / output interfaces IN1 and IN2 and over-temperature protection. Among them, resistor R18 is a current sampling resistor used to detect motor current, and ADC is the motor current sampling signal connected to the microcontroller's ADC port.

[0064] The technical advantages of this embodiment are as follows: by setting up a single-channel H-bridge drive chip 202, a sampling module 201, a first filtering module 203, and a second filtering module 204, stable driving and real-time current sampling functions for the motor 106 are achieved; the single-channel H-bridge drive chip 202 provides reliable forward and reverse rotation control, the sampling module 201 realizes current status monitoring, and the filtering module effectively suppresses electromagnetic interference, improving the accuracy and safety of motor control, making the oil injection process more intelligent and stable, and preventing abnormal valve operation or stalling and loss of control.

[0065] In one implementation, the control module 105 sends control signals to the first control terminal and the second control terminal of the single-channel H-bridge driver chip 202, respectively, so that when the current reaches a preset value during the forward or reverse rotation of the motor 106, the single-channel H-bridge driver chip 202 controls the motor 106 to stop rotating.

[0066] The control module 105 has two control signal output terminals connected to the first and second control terminals of the single-channel H-bridge driver chip 202, respectively, to control the rotation direction of the motor 106. Based on user button operations and posture judgment results, the control module 105 outputs different combinations of control signals to the first and second control terminals to cause the motor 106 to perform forward or reverse rotation, thereby achieving oil injection or closing of the oil injection valve. During the rotation of the motor 106, the control module 105 receives current feedback signals from the sampling module 201 through its third signal input terminal and continuously monitors current changes. When the control module 105 detects that the motor current value reaches a preset threshold (e.g., the motor is mechanically blocked by a valve causing a stall), it determines that the current action has been completed. At this time, the control module 105 immediately controls the single-channel H-bridge driver chip 202 to close its output channel, for example, by setting both the first and second control terminals to a low or high level, causing the motor to stop rotating, thereby avoiding energy waste, component damage, or abnormal noise caused by continuous driving.

[0067] As an example, such as Figure 7 As shown, the power input terminal VCC of the control module U4 receives the first voltage, its first signal input terminal PB5 is connected to the signal output terminal of the switch module 101, its second signal input terminal PF0 is connected to the signal output terminal of the position sensing module 103, its third signal input terminal PA2 is connected to the signal output terminal of the motor drive module 104, and its signal output terminals PA0 and PA5 are respectively connected to the first control terminal and the second control terminal of the motor drive module.

[0068] The technical advantages of this implementation method are: by using current detection to replace the complex position detection mechanism, intelligent judgment and safe control of the motor's operating status are realized, thereby improving the automation level, response speed and reliability of the oil injection system.

[0069] Combination Figure 2 , Figure 3 , Figure 4 , Figure 6 as well as Figure 7 As shown, the circuit implementation principle provided in this embodiment is as follows: A solenoid valve control command is sent to the MCU by pressing the button switch SW. After receiving the button information, the MCU first processes the data through I... 2The MCU reads the position information detected by the digital triaxial position sensor U3. After determining that there is no inverted position, it controls the single-channel H-bridge driver chip U2 via a PWM control signal to start the motor (start oil filling). At the same time, the MCU calculates the motor current through ADC sampling. When the motor current is too high (the motor is in a stalled state, and the lever is in the boundary position), the control is disconnected, and the oil filling time is timed. When 2 minutes have passed, reverse rotation is initiated, and the oil filling valve is closed. While monitoring the oil valve, the ADC is monitored to calculate the motor current. When the motor current is too high (the motor is in a stalled state, and the oil filling valve is completely closed), the control is disconnected to achieve oil filling from the upper oil tank to the lower oil tank. Pressing the button switch SW can stop and open the oil filling valve at any time, and the motor current is monitored in real time by detecting the signal when the valve is open.

[0070] Example 2

[0071] A second aspect of this utility model provides an atomizing device, which includes the oil supply control circuit, motor, and oil storage tank provided in the first aspect. The motor is connected to an oil injection valve in the oil storage tank. The oil storage tank includes an upper oil storage chamber and a lower oil storage chamber. When the motor opens the oil injection valve, the upper oil storage chamber injects oil into the lower oil storage chamber.

[0072] The motor drives the oil injection valve to open and close. Upon receiving a control signal from the oil supply control circuit, the motor rotates to drive the connecting mechanism, physically opening and closing the oil injection valve to control whether oil from the upper oil tank is injected into the lower oil tank. The oil tank stores oil and supplies the atomizing part with oil in stages; the upper oil tank serves as the main reservoir, storing a relatively large amount of oil; the lower oil tank serves as a temporary reservoir for short-term oil supply. When the motor drives the oil injection valve to open, oil from the upper oil tank flows into the lower oil tank, ensuring a stable oil supply for the atomizer. The oil injection valve controls the flow of oil between the upper and lower oil tanks. Driven by the motor, it opens or closes, allowing oil to flow from the upper tank to the lower tank as needed, ensuring oil supply. The oil supply control circuit controls the motor's start and stop to control the opening and closing of the oil injection valve. Based on user operation or internal equipment logic, it outputs control signals to the motor drive module, causing the motor to perform oil injection or stop injection.

[0073] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. An oil supply control circuit for an atomizing device, characterized in that, include: Switch module; A voltage regulator module receives a power supply voltage and regulates the power supply voltage to output a first voltage. The position sensing module receives the first voltage at its power input terminal and is used to detect the spatial attitude information of the atomizing device; The motor drive module receives the first voltage at its power input terminal and is connected to the motor at its signal output terminal. It is used to drive the motor to rotate forward or in reverse to open or close the oil filling valve of the oil storage tank. The control module receives the first voltage at its power input terminal, its first signal input terminal is connected to the signal output terminal of the switch module, its second signal input terminal is connected to the signal output terminal of the position sensing module, and its signal output terminal is connected to the control terminal of the motor drive module. The control module is used to control the motor drive module to rotate the motor in a predetermined direction when it receives the switch information from the switch module and detects that the atomizing device is in a preset posture through the position sensing module, so as to realize oil filling or stop oil filling.

2. The oil supply control circuit as described in claim 1, characterized in that, The third signal input terminal of the control module is connected to the signal output terminal of the motor drive module, and is used to collect current signals and control the motor drive module to drive the motor according to the current signals.

3. The oil supply control circuit as described in claim 1, characterized in that, The switch module is a push-button switch, one end of which is the signal output terminal of the switch module, and the other end of which is grounded.

4. The oil supply control circuit as described in claim 1, characterized in that, The voltage regulator module is a low-voltage linear regulator. The power input terminal of the low-voltage linear regulator receives the power supply voltage, and the power output terminal outputs a first voltage.

5. The oil supply control circuit as described in claim 1, characterized in that, The position sensing module is a digital triaxial position sensor, and the signal output terminal of the digital triaxial position sensor is connected to the second signal input terminal of the control module via I2C communication.

6. The oil supply control circuit as described in claim 2, characterized in that, The motor drive module includes a single-channel H-bridge driver chip, a sampling module, a first filtering module, and a second filtering module. One end of the sampling module is the power input terminal of the motor drive module, and the other end of the sampling module is connected to one end of the first filtering module and the power input terminal of the single-channel H-bridge driver chip, forming the signal output terminal of the motor drive module. The other end of the first filtering module is grounded. One end of the second filtering module is connected to the first output terminal of the single-channel H-bridge driver chip, and the other end of the second filtering module is connected to the second output terminal of the single-channel H-bridge driver chip. The first control terminal and the second control terminal of the single-channel H-bridge driver chip constitute the control terminal of the motor drive module.

7. The oil supply control circuit as described in claim 6, characterized in that, The control module sends control signals to the first and second control terminals of the single-channel H-bridge driver chip, respectively, so that when the current reaches a preset value during the forward or reverse rotation of the motor, the single-channel H-bridge driver chip controls the motor to stop rotating.

8. The oil supply control circuit as described in claim 6, characterized in that, The sampling module is a sampling resistor, one end of the sampling resistor is one end of the sampling module, and the other end of the sampling resistor is the other end of the sampling module; The first filtering module is a first capacitor, one end of the first capacitor is one end of the first filtering module, and the other end of the first capacitor is the other end of the first filtering module; The second filter module is a second capacitor, one end of the second capacitor is one end of the second filter module, and the other end of the second capacitor is the other end of the second filter module.

9. An atomizing device, characterized in that, The atomizing device includes an oil supply control circuit, a motor, and an oil storage tank as described in any one of claims 1 to 8, wherein the motor is connected to an oil injection valve in the oil storage tank.

10. The atomizing device as described in claim 9, characterized in that, The oil storage tank includes an upper oil storage tank and a lower oil storage tank. When the motor opens the oil injection valve, the upper oil storage tank injects oil into the lower oil storage tank.

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