Electronic cigarette gravity sensing switch circuit and electronic atomizer
Patent Information
- Application Number
- CN202522111883.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-09-29
AI Technical Summary
然而，此类手动操作存在明显弊端：一方面，操作过程较为繁琐，用户在使用时需刻意执行开关机步骤，尤其在频繁使用或场景不便时，极大影响了使用体验；另一方面，若用户遗忘手动关机，电子烟可能持续处于耗电状态，造成不必要的电量消耗，甚至存在因误触而意外触发抽吸功能的风险，带来能源浪费或潜在安全隐患
[0018]上述的电子烟重力感应开关电路，通过重力感应芯片自动检测电子烟的姿态，并由主控模块根据姿态数据自动控制电子烟待机与工作，替代了传统的手动开关机操作，使得用户只需将电子烟平放或拿起，即可使得电子烟设备进入自动待机或工作模式，无需额外进行开关机动作，简化了使用流程同时提升了用户体验。并且，自动待机功能可以有效避免电子烟在非使用状态下的意外触发。当电子烟平放时自动锁机，防止因误触或其他原因导致电子烟在无人使用的情况下加热工作，避免了因电子烟长时间无意识加热而引发的电池过度放电、烟油干烧的问题，进而保障了用户的使用安全。
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Figure CN224804934U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the technical field of electronic cigarette switch control, and in particular to an electronic cigarette gravity sensing switch circuit and an electronic atomizer. Background Technology
[0002] In the e-cigarette industry, traditional power-on and power-off operations mostly rely on manual methods, such as pressing and holding a button to turn the device on and off. However, this manual operation has significant drawbacks: on the one hand, the operation process is relatively cumbersome, requiring users to consciously perform the power-on and power-off steps, which greatly affects the user experience, especially in situations where it is frequently used or inconvenient; on the other hand, if the user forgets to manually turn it off, the e-cigarette may continue to consume power, causing unnecessary power consumption, and there is even a risk of accidentally triggering the vaping function due to accidental touch, resulting in energy waste or potential safety hazards. Utility Model Content
[0003] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide an electronic cigarette gravity sensing switch circuit and electronic atomizer that realizes automatic power on / off of electronic cigarettes through gravity sensing, while reducing the standby power consumption of electronic cigarettes.
[0004] The purpose of this disclosure is achieved through the following technical solution:
[0005] An electronic cigarette gravity sensor switch circuit includes a main control module, a gravity sensor module, a voltage regulator module, and a heating control module. The first communication terminal of the main control module is connected to the second communication terminal of the gravity sensor module. The input terminal of the voltage regulator module is connected to the battery power supply terminal, and the output terminal of the voltage regulator module is connected to the power input terminal of the gravity sensor module.
[0006] The control terminal of the heating control module is connected to the heating signal terminal of the main control module, the input terminal of the heating control module is connected to the battery power supply terminal, and the output terminal of the heating control module is used to connect to the e-liquid heating element.
[0007] The gravity sensing module includes a gravity sensing chip and a first pull-up resistor. The second communication terminal of the gravity sensing chip is connected to the battery power supply terminal through the first pull-up resistor.
[0008] In one embodiment, the gravity sensing module further includes a second pull-up resistor. The second data transmission terminal of the gravity sensing chip is connected to the battery power supply terminal through the second pull-up resistor. The second clock signal terminal of the gravity sensing chip is connected to the battery power supply terminal through a first pull-up resistor. The second clock signal terminal of the gravity sensing chip is also connected to the first clock signal terminal of the main control module. The second data transmission terminal of the gravity sensing chip is also connected to the first data transmission terminal of the main control module.
[0009] In one embodiment, the gravity sensing module further includes a first filter capacitor, the first end of which is connected to the power input terminal of the gravity sensing chip and the output terminal of the voltage regulator module, and the second end of the first filter capacitor is grounded.
[0010] In one embodiment, the gravity sensor chip is model MSA310.
[0011] In one embodiment, the main control module includes a main control chip and a voltage divider resistor, and the power input terminal of the main control chip is connected to the battery power supply terminal through the voltage divider resistor.
[0012] In one embodiment, the main control module further includes a second filter capacitor, the first end of which is connected to the power input terminal of the main control chip, and the second end of which is grounded.
[0013] In one embodiment, the heating control module includes a heating switch electron tube and a bias resistor. The control terminal of the heating switch electron tube is connected to the heating signal terminal of the main control module. The first terminal of the heating switch electron tube is connected to the battery power supply terminal. The second terminal of the heating switch electron tube is used to connect to the e-liquid heating element. The first terminal of the bias resistor is connected to the first terminal of the heating switch electron tube, and the second terminal of the bias resistor is connected to the control terminal of the heating switch electron tube.
[0014] In one embodiment, the heating switch tube is a P-channel MOS transistor.
[0015] In one embodiment, the voltage regulator module includes a voltage regulator controller and a third filter capacitor. The input terminal of the voltage regulator controller is connected to the battery power supply terminal, the output terminal of the voltage regulator controller is connected to the power input terminal of the gravity sensing module, the first terminal of the third filter capacitor is connected to the output terminal of the voltage regulator controller, and the second terminal of the third filter capacitor is grounded.
[0016] This application also provides an electronic atomizer, including the electronic cigarette gravity sensor switch circuit described in any of the above embodiments.
[0017] Compared with the prior art, this disclosure has at least the following advantages:
[0018] The aforementioned electronic cigarette gravity sensor switch circuit automatically detects the electronic cigarette's posture through a gravity sensor chip. The main control module then automatically controls the electronic cigarette's standby and operating modes based on this posture data, replacing the traditional manual power-on / off operation. Users only need to lay the electronic cigarette flat or pick it up to automatically enter standby or operating mode, eliminating the need for manual power-on / off actions. This simplifies the usage process and enhances the user experience. Furthermore, the automatic standby function effectively prevents accidental triggering of the electronic cigarette when not in use. When the electronic cigarette is laid flat, it automatically locks, preventing accidental activation or other reasons that could cause it to heat up and operate unattended. This avoids issues such as excessive battery discharge and e-liquid burn caused by prolonged unintentional heating, thus ensuring user safety. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 A circuit diagram of an electronic cigarette gravity sensor switch circuit according to one embodiment;
[0021] Figure 2 for Figure 1 The diagram shows a partial circuit diagram of the gravity sensor switch circuit for an electronic cigarette. Detailed Implementation
[0022] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.
[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0025] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:
[0026] like Figure 1 and Figure 2 As shown, an embodiment of the electronic cigarette gravity sensor switch circuit 10 of this disclosure includes a main control module 100, a gravity sensor module 200, a voltage regulator module 300, and a heating control module 400. The first communication terminal of the main control module 100 is connected to the second communication terminal of the gravity sensor module 200. The input terminal of the voltage regulator module 300 is used to connect to the battery power supply terminal VBAT, and the output terminal of the voltage regulator module 300 is connected to the power input terminal of the gravity sensor module 200.
[0027] The control terminal of the heating control module 400 is connected to the heating signal terminal Switch of the main control module 100, the input terminal of the heating control module 400 is connected to the battery power supply terminal VBAT, and the output terminal of the heating control module 400 is used to connect to the e-liquid heating element.
[0028] The gravity sensing module 200 includes a gravity sensing chip U2 and a first pull-up resistor R4. The second communication terminal of the gravity sensing chip U2 is connected to the battery power supply terminal VBAT through the first pull-up resistor R4.
[0029] In this embodiment, the gravity sensing chip U2 in the gravity sensing module 200 acts as an acceleration sensor, capable of detecting real-time acceleration changes of the electronic cigarette in three-dimensional space. The components of gravitational acceleration differ along each axis when the electronic cigarette is in different postures. Specifically, when the electronic cigarette is stationary, the gravity sensing chip U2 detects that the distribution of gravitational acceleration components in three-dimensional space conforms to stationary characteristics; for example, the Z-axis gravitational acceleration component is close to 9.8 m / s². 2 The gravitational acceleration components along the X and Y axes are close to 0 m / s². 2 At this time, the gravity sensor chip U2 sends data representing the stationary state to the first communication terminal of the main control module 100 via its second communication terminal using the I2C bus. On the other hand, when the user picks up the electronic cigarette, the posture of the electronic cigarette changes, and the component distribution of gravitational acceleration in each axis also changes accordingly. After detecting this change in acceleration distribution, the gravity sensor chip U2 sends new state data representing the posture change to the main control module 100 via the I2C bus.
[0030] Furthermore, when the main control module 100 receives static posture data, it sends a standby signal to the control terminal of the heating control module 400 via its heating signal terminal switch. Upon receiving this signal, the heating control module 400 shuts down the connection switch assembly and current path with the e-liquid heating element, stopping the heating function of the electronic cigarette and putting it into a standby state to prevent accidental triggering and dry burning. When the main control module 100 receives posture change data, it sends a working signal to the control terminal of the heating control module 400 via its heating signal terminal switch. Upon receiving this signal, the heating control module 400 re-enables the connection switch assembly and current path with the e-liquid heating element, restoring the heating function of the electronic cigarette. The electronic cigarette returns to normal operation, allowing the user to vape normally.
[0031] The aforementioned electronic cigarette gravity sensor switch circuit 10 automatically detects the electronic cigarette's posture through a gravity sensor chip. The main control module then automatically controls the electronic cigarette's standby and operating modes based on the posture data, replacing the traditional manual power-on / off operation. This allows users to simply place the electronic cigarette flat or pick it up to automatically enter standby or operating mode, eliminating the need for manual power-on / off actions. This simplifies the usage process and enhances the user experience. Furthermore, the automatic standby function effectively prevents accidental triggering of the electronic cigarette when not in use. When the electronic cigarette is placed flat, it automatically locks, preventing accidental activation or other reasons that could cause it to heat up and operate unattended. This avoids issues such as excessive battery discharge and e-liquid burn caused by prolonged unintentional heating, thus ensuring user safety.
[0032] like Figure 1 and Figure 2As shown, in one embodiment, the gravity sensing module 200 further includes a second pull-up resistor R5. The second data transmission terminal SDA of the gravity sensing chip U2 is connected to the battery power supply terminal VBAT through the second pull-up resistor R5. The second clock signal terminal SCL of the gravity sensing chip U2 is connected to the battery power supply terminal VBAT through a first pull-up resistor R4. The second clock signal terminal SCL of the gravity sensing chip U2 is also connected to the first clock signal terminal of the main control module 100, and the second data transmission terminal SDA of the gravity sensing chip U2 is also connected to the first data transmission terminal of the main control module 100. In this embodiment, the second pull-up resistor R5 and the first pull-up resistor R4 work together to provide a stable level for the second data transmission terminal SDA and the second clock signal terminal SCL of the gravity sensing chip U2. In I2C bus communication, the pull-up resistor can ensure that the signal line remains at a high level when the bus is idle. When the gravity sensing chip U2 or the main control module 100 needs to transmit data, the data transmission and reception are achieved by controlling the level change of the signal line. The aforementioned stable voltage level can avoid uncertainties and interference in signal transmission, thereby ensuring the accuracy and reliability of data transmission.
[0033] like Figure 1 and Figure 2 As shown, in one embodiment, the gravity sensing module 200 further includes a first filter capacitor C4. The first terminal of the first filter capacitor C4 is connected to both the power input terminal of the gravity sensing chip U2 and the output terminal of the voltage regulator module 300, while the second terminal of the first filter capacitor C4 is grounded. In this embodiment, when the voltage regulator module 300 regulates the voltage of the battery power supply terminal VBAT and outputs it to the power input terminal of the gravity sensing chip U2, the first filter capacitor C4 charges and absorbs pulse current from the power supply, causing the power supply voltage to gradually rise and stabilize, thereby improving the operational stability of the gravity sensing chip U2. Furthermore, during normal operation of the electronic cigarette, various interferences on the power line can cause slight fluctuations in the power supply voltage. The first filter capacitor C4 can charge or discharge according to voltage changes to maintain the stability of the power supply voltage, further improving the stability of the gravity sensing chip U2.
[0034] like Figure 1 and Figure 2As shown, in one embodiment, the gravity sensor chip U2 is model MSA310. In this embodiment, the MSA310 gravity sensor chip has high-precision acceleration detection capability, which can accurately sense the acceleration changes of the electronic cigarette in each axis of three-dimensional space, so that the MSA310 gravity sensor chip can accurately identify the components of gravitational acceleration in each axis when the electronic cigarette is in different postures. Specifically, after the electronic cigarette is picked up, the MSA310 gravity sensor chip senses the acceleration changes of the electronic cigarette in the X, Y, and Z axes in real time. Then, the gravity sensor chip converts the state parameters of the acceleration changes into digital signals and transmits them to the main control module 100 via the I2C bus through the second communication terminal connected to the first communication terminal of the main control module 100. Further, when the user places the electronic cigarette at rest, the components of gravitational acceleration in each axis change, and the MSA310 chip quickly detects the state change of the electronic cigarette and sends the new posture data to the main control module 100 through the same communication method. The main control module 100 determines the posture of the electronic cigarette based on the received data, and then controls the working state of the heating control module 400, and realizes the automatic locking and unlocking functions of the electronic cigarette.
[0035] like Figure 1 and Figure 2As shown, in one embodiment, the main control module 100 includes a main control chip U1 and a voltage divider resistor R2. The power input terminal of the main control chip U1 is connected to the battery power supply terminal VBAT through the voltage divider resistor R2. In this embodiment, when the battery power supply terminal VBAT outputs voltage, the battery voltage may fluctuate or be too high. Directly connecting the battery voltage to the power input terminal of the main control chip U1 may damage the chip. Therefore, by setting the voltage divider resistor R2 to divide the voltage of the battery power supply terminal VBAT, the voltage input to the power input terminal of the main control chip U1 can be reduced, avoiding damage to the main control chip U1 due to excessive voltage. Furthermore, when the gravity sensor chip U2 in the gravity sensor module 200 detects a change in the electronic cigarette's posture, it sends the monitoring data of the gravity sensor chip U2 to the first communication terminal of the main control chip U1 via the I2C bus. If the main control chip U1 receives data indicating that the e-cigarette is in a static state, it determines that the e-cigarette is not in use. In this case, the main control chip U1 sends a standby signal to the control terminal of the heating control module 400 via its heating signal terminal (Switch). Upon receiving this signal, the heating control module 400 shuts down the connection switch and current path to the e-liquid heating element, putting the e-cigarette into standby mode and stopping the heating function. Conversely, when the main control chip U1 receives data indicating a change in the e-cigarette's posture, it determines that the user may be preparing to use the e-cigarette. In this case, the main control chip U1 sends a working signal to the control terminal of the heating control module 400 via its heating signal terminal (Switch). Upon receiving the signal, the heating control module 400 enables the connection switch and current path to the e-liquid heating element, restoring the e-cigarette's heating function and allowing it to return to normal operation, enabling the user to vape normally.
[0036] like Figure 1 and Figure 2 As shown, in one embodiment, the main control module 100 further includes a second filter capacitor C1. The first end of the second filter capacitor C1 is connected to the power input terminal of the main control chip U1, and the second end of the second filter capacitor C1 is grounded. In this embodiment, when the voltage divider resistor R2 divides the voltage of the battery power supply terminal VBAT and sends it to the power input terminal of the main control chip U1, various interference factors are likely to exist in the power supply line, causing voltage fluctuations and noise in the power input terminal of the main control chip U1. At the moment the power is turned on, the second filter capacitor C1, due to its characteristic of "passing AC and blocking DC", will bypass the AC component in the power supply. Specifically, when there is high-frequency AC noise in the power supply voltage, the second filter capacitor C1 will provide a low-impedance path for this noise, allowing it to be directly grounded through the capacitor instead of entering the power input terminal of the main control chip U1, thereby effectively reducing the interference of high-frequency noise on the power supply of the main control chip U1.
[0037] like Figure 1 and Figure 2 As shown, in one embodiment, the heating control module 400 includes a heating switch tube Q1 and a bias resistor R1. The control terminal of the heating switch tube Q1 is connected to the heating signal terminal Switch of the main control module 100. The first terminal of the heating switch tube Q1 is connected to the battery power supply terminal VBAT. The second terminal of the heating switch tube Q1 is used to connect to the e-liquid heating element. The first terminal of the bias resistor R1 is connected to the first terminal of the heating switch tube Q1, and the second terminal of the bias resistor R1 is connected to the control terminal of the heating switch tube Q1. In this embodiment, when the main control module 100 determines that the electronic cigarette is stationary based on the attitude data transmitted from the gravity sensing module 200, the heating signal terminal Switch of the main control module 100 outputs a standby signal to the control terminal of the heating switch tube Q1. This causes the voltage at the control terminal of the heating switch tube Q1 to fall below its conduction threshold voltage, thus the heating switch tube Q1 is in the off state. This cuts off the current path between the battery power supply terminal VBAT and the e-liquid heating element, causing the e-liquid heating element to stop working and the electronic cigarette to enter standby mode. This effectively avoids the problem of dry burning caused by accidental triggering when not in use. Simultaneously, the bias resistor R1 provides a stable bias voltage to the control terminal of the heating switch tube Q1. This bias voltage ensures that the heating switch tube Q1 reliably remains in the off state in standby mode and will not be mis-turned due to minor external interference.
[0038] Furthermore, when the main control module 100 receives data representing changes in the electronic cigarette's posture from the gravity sensor module 200, it determines that the user may be preparing to use the electronic cigarette. At this time, the heating signal terminal Switch of the main control module 100 outputs a working signal to the control terminal of the heating switch tube Q1, ensuring that the voltage at the control terminal of the heating switch tube Q1 meets its conduction threshold voltage, thus putting the heating switch tube Q1 into a conducting state. When the heating switch tube Q1 is turned on, the current path between the battery power supply terminal VBAT and the e-liquid heating element is connected, allowing current to flow smoothly to the e-liquid heating element, enabling it to start working and heat the e-liquid. The electronic cigarette returns to normal operation, and the user can use the electronic cigarette device normally.
[0039] like Figure 1 and Figure 2As shown, in one embodiment, the heating switch tube Q1 is a P-channel MOSFET. In this embodiment, the first terminal of the heating switch tube Q1 is the source of the P-channel MOSFET, the second terminal of the heating switch tube Q1 is the drain of the P-channel MOSFET, and the control terminal of the heating switch tube Q1 is the gate of the P-channel MOSFET. When the main control module 100 determines that the electronic cigarette is in a stationary state based on the attitude data transmitted from the gravity sensing module 200, the heating signal terminal Switch of the main control module 100 will output a high-level signal to the gate of the P-channel MOSFET Q1. Since the conduction characteristic of the P-channel MOSFET is that it conducts when the gate voltage is negative relative to the source voltage, when the gate receives a high-level signal relative to the source voltage, the P-channel MOSFET is in a cut-off state. At this time, the current path between the battery power supply terminal VBAT and the e-liquid heating element is cut off, the e-liquid heating element stops working, and the electronic cigarette enters a standby state.
[0040] When the main control module 100 receives data representing changes in the e-cigarette's posture from the gravity sensor module 200, it determines that the user may be preparing to use the e-cigarette. At this time, the heating signal terminal Switch of the main control module 100 outputs a low-level signal to the gate of the P-channel MOSFET Q1. Because the gate voltage drops significantly and is lower than the source voltage, while the source, connected to the battery power supply terminal VBAT, maintains a high potential, a negative voltage difference is formed between the gate and the source, satisfying the conduction condition of the P-channel MOSFET. This causes the P-channel MOSFET Q1 to conduct, connecting the current path between the battery power supply terminal VBAT and the e-liquid heating element. The current can then flow smoothly to the e-liquid heating element, causing it to start working and heat the e-liquid. The e-cigarette returns to normal operation, and the user can vape normally.
[0041] Furthermore, the P-channel MOSFET can precisely control the on / off state of the current path based on different level signals output by the main control module. When the e-cigarette is stationary, the current is reliably cut off, stopping the heating function; when the user picks up the e-cigarette to use it, the current is quickly turned on again, restoring the heating function. This precise control ensures that the e-cigarette operates according to the user's actual needs, avoiding unnecessary energy consumption and misoperation.
[0042] like Figure 1 and Figure 2As shown, in one embodiment, the voltage regulator module 300 includes a voltage regulator controller U3 and a third filter capacitor C3. The input terminal of the voltage regulator controller U3 is connected to the battery power supply terminal VBAT, and the output terminal of the voltage regulator controller U3 is connected to the power input terminal of the gravity sensing module 200. The first terminal of the third filter capacitor C3 is connected to the output terminal of the voltage regulator controller U3, and the second terminal of the third filter capacitor C3 is grounded. In this embodiment, when the battery power supply terminal VBAT outputs voltage, due to the characteristics of the battery itself and the influence of other factors in the circuit, the output voltage may have fluctuations, noise, and other problems. If an unstable voltage is directly supplied to the gravity sensing module 200, it will cause the gravity sensing chip U2 to work unstablely, resulting in inaccurate detection data or even failure to work properly. The voltage regulator controller U3 can monitor the voltage change of the input battery power supply terminal VBAT in real time, and through its internal precise analog circuit structure, it can accurately adjust and stabilize the input voltage, and output a stable operating voltage to the gravity sensing module 200, ensuring that its output terminal always provides a stable voltage of 3.0V. Furthermore, the third filter capacitor C3 utilizes the characteristic of capacitors to "pass AC and block DC" to bypass high-frequency noise and ripple on the power supply line. When there are high-frequency AC components in the power supply voltage, the third filter capacitor C3 provides a low-impedance path for the AC components, allowing them to be directly grounded through the capacitor, preventing the high-frequency AC components from being transmitted to the power input terminal of the gravity sensing module 200, and further improving the stability of the power supply voltage of the gravity sensing module 200.
[0043] This application also provides an electronic atomizer, including the electronic cigarette gravity sensing switch circuit 10 of any of the above embodiments. In this embodiment, the gravity sensing chip U2 in the gravity sensing module 200 acts as an acceleration sensor, capable of detecting the acceleration changes of the electronic cigarette in three-dimensional space in real time. When the electronic cigarette is in different postures, the components of gravitational acceleration in each axis are different. Specifically, when the electronic cigarette is stationary, the gravity sensing chip U2 detects that the component distribution of gravitational acceleration in three-dimensional space conforms to the characteristics of a stationary state, such as the Z-axis gravitational acceleration component being close to 9.8 m / s². 2 The gravitational acceleration components along the X and Y axes are close to 0 m / s². 2At this time, the gravity sensor chip U2 sends data representing a stationary state to the first communication terminal of the main control module 100 via its second communication terminal using the I2C bus. On the other hand, when the user picks up the e-cigarette, the e-cigarette's posture changes, and the distribution of gravitational acceleration components along each axis also changes accordingly. After detecting this change in acceleration distribution, the gravity sensor chip U2 sends new state data representing the posture change to the main control module 100 via the I2C bus. Furthermore, when the main control module 100 receives the stationary posture data, it sends a standby signal to the control terminal of the heating control module 400 via its heating signal terminal (Switch). Upon receiving this signal, the heating control module 400 shuts down the connection switch assembly and current path with the e-liquid heating element, stopping the e-cigarette's heating function and putting the e-cigarette into a standby-like state to prevent accidental triggering and potential dry burning. When the main control module 100 receives the posture change data, the main control module 100 sends a working signal to the control terminal of the heating control module 400 through the heating signal terminal Switch. After receiving the signal, the heating control module 400 enables the switching component and current path of the e-liquid heating element, restores the heating function of the e-cigarette, and the e-cigarette returns to normal working state, allowing the user to vape normally.
[0044] Compared with the prior art, this disclosure has at least the following advantages:
[0045] The aforementioned electronic cigarette gravity sensor switch circuit 10 automatically detects the electronic cigarette's posture through a gravity sensor chip. The main control module then automatically controls the electronic cigarette's standby and operating modes based on the posture data, replacing the traditional manual power-on / off operation. This allows users to simply place the electronic cigarette flat or pick it up to automatically enter standby or operating mode, eliminating the need for manual power-on / off actions. This simplifies the usage process and enhances the user experience. Furthermore, the automatic standby function effectively prevents accidental triggering of the electronic cigarette when not in use. When the electronic cigarette is placed flat, it automatically locks, preventing accidental activation or other reasons that could cause it to heat up and operate unattended. This avoids issues such as excessive battery discharge and e-liquid burn caused by prolonged unintentional heating, thus ensuring user safety.
[0046] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.
Claims
1. A gravity-sensing switch circuit for an electronic cigarette, characterized in that, It includes a main control module, a gravity sensor module, a voltage regulator module, and a heating control module. The first communication terminal of the main control module is connected to the second communication terminal of the gravity sensing module, the input terminal of the voltage regulator module is used to connect to the battery power supply terminal, and the output terminal of the voltage regulator module is connected to the power input terminal of the gravity sensing module. The control terminal of the heating control module is connected to the heating signal terminal of the main control module, the input terminal of the heating control module is connected to the battery power supply terminal, and the output terminal of the heating control module is used to connect to the e-liquid heating element. The gravity sensing module includes a gravity sensing chip and a first pull-up resistor. The second communication terminal of the gravity sensing chip is connected to the battery power supply terminal through the first pull-up resistor.
2. The electronic cigarette gravity sensor switch circuit according to claim 1, characterized in that, The gravity sensing module further includes a second pull-up resistor. The second data transmission terminal of the gravity sensing chip is connected to the battery power supply terminal through the second pull-up resistor. The second clock signal terminal of the gravity sensing chip is connected to the battery power supply terminal through the first pull-up resistor. The second clock signal terminal of the gravity sensing chip is also connected to the first clock signal terminal of the main control module. The second data transmission terminal of the gravity sensing chip is also connected to the first data transmission terminal of the main control module.
3. The electronic cigarette gravity sensor switch circuit according to claim 2, characterized in that, The gravity sensing module further includes a first filter capacitor. The first end of the first filter capacitor is connected to the power input terminal of the gravity sensing chip and the output terminal of the voltage regulator module, respectively, and the second end of the first filter capacitor is grounded.
4. The electronic cigarette gravity sensor switch circuit according to claim 1, characterized in that, The gravity sensor chip is model MSA310.
5. The electronic cigarette gravity sensor switch circuit according to claim 1, characterized in that, The main control module includes a main control chip and a voltage divider resistor. The power input terminal of the main control chip is connected to the battery power supply terminal through the voltage divider resistor.
6. The electronic cigarette gravity sensor switch circuit according to claim 5, characterized in that, The main control module also includes a second filter capacitor, the first end of which is connected to the power input terminal of the main control chip, and the second end of which is grounded.
7. The electronic cigarette gravity sensor switch circuit according to claim 1, characterized in that, The heating control module includes a heating switch electron tube and a bias resistor. The control terminal of the heating switch electron tube is connected to the heating signal terminal of the main control module. The first terminal of the heating switch electron tube is connected to the battery power supply terminal. The second terminal of the heating switch electron tube is used to connect to the e-liquid heating element. The first terminal of the bias resistor is connected to the first terminal of the heating switch electron tube. The second terminal of the bias resistor is connected to the control terminal of the heating switch electron tube.
8. The electronic cigarette gravity sensor switch circuit according to claim 7, characterized in that, The heating switch electron tube is a P-channel MOS transistor.
9. The electronic cigarette gravity sensor switch circuit according to claim 1, characterized in that, The voltage regulator module includes a voltage regulator controller and a third filter capacitor. The input terminal of the voltage regulator controller is connected to the battery power supply terminal, the output terminal of the voltage regulator controller is connected to the power input terminal of the gravity sensor module, the first terminal of the third filter capacitor is connected to the output terminal of the voltage regulator controller, and the second terminal of the third filter capacitor is grounded.
10. An electronic atomizer, characterized in that, Includes the electronic cigarette gravity sensor switch circuit as described in any one of claims 1 to 9.