Switching circuit and aerosol generator

Abstract

This invention discloses a switch-switching circuit and an aerosol generator, comprising a photosensitive module, a light source module, and a control unit. The photosensitive module includes a first photosensitive unit and a second photosensitive unit, and is connected to a power supply unit. The light source module is connected to the power supply unit and provides light to the photosensitive module. The control unit is connected to both the photosensitive module and the light source module. When the first photosensitive unit is blocked by a blocking element, the control unit outputs a first control signal; when the second photosensitive unit is blocked by the blocking element, the control unit outputs a second control signal; when neither the first nor the second photosensitive unit is blocked by the blocking element, the control unit outputs a third control signal. The switch-switching circuit disclosed in this invention is not only safe and stable but also has a long service life.

Description

Technical Field

[0001] This invention relates to the field of electronic circuit technology, and in particular to a switch switching circuit and an aerosol generating device. Background Technology

[0002] Currently, in electronic circuits, conventional mechanical toggle switches, such as single-pole double-throw (SPD) or single-pole triple-throw (SPD) switches, are often used to switch circuits. The moving end of the SPD or SPD switch selects the circuit to be connected and provides the corresponding power supply to the circuit based on the moving end connection. However, during use, mechanical toggle switches are prone to oxidation of the toggle contacts and mechanical wear, which can lead to poor contact, unstable conductivity, or even make the switch difficult to toggle or cause it to break down due to mechanical wear. As a result, mechanical toggle switches have a short service life and pose safety hazards during use.

[0003] Therefore, in order to solve the above problems, the present invention provides a switch switching circuit and an aerosol generator that are not only safe and stable but also have a long service life. Summary of the Invention

[0004] This invention provides a switch switching circuit and an aerosol generating device, aiming to solve the problems of short lifespan, poor safety and stability of existing switch switching circuits.

[0005] To address the aforementioned technical problems, the present invention provides a switch switching circuit, comprising: a photosensitive module including a first photosensitive unit and a second photosensitive unit, the photosensitive module being connected to a power supply unit; a light source module being connected to the power supply unit and providing a light source to the photosensitive module; and a control unit being connected to the photosensitive module and the light source module; wherein, when the first photosensitive unit is blocked by a blocking element, the control unit outputs a first control signal; when the second photosensitive unit is blocked by the blocking element, the control unit outputs a second control signal; and when neither the first photosensitive unit nor the second photosensitive unit is blocked by the blocking element, the control unit outputs a third control signal.

[0006] Furthermore, the control unit is an MCU, the light source module includes a light-emitting diode, the positive terminal of the light-emitting diode is connected to the IO pin of the MCU, and the negative terminal of the light-emitting diode is connected between the negative terminal of the power supply unit and ground.

[0007] Furthermore, the light source module also includes a first resistor, one end of which is connected to the positive terminal of the light-emitting diode, and the other end is connected to the IO pin of the MCU.

[0008] Furthermore, the first photosensitive unit includes a first photosensitive switch, one end of which is connected to the power supply unit, and the other end is connected to the AD pin of the MCU.

[0009] Furthermore, the first photosensitive unit also includes a second resistor, one end of which is connected to the first photosensitive switch and the AD pin of the MCU, and the other end is grounded.

[0010] Furthermore, the first photosensitive switch is a photodiode or a photoresistor.

[0011] Furthermore, the second photosensitive unit includes a second photosensitive switch, one end of which is connected to the power supply unit, and the other end is connected to the AD pin of the MCU.

[0012] Furthermore, the second photosensitive unit also includes a third resistor, one end of which is connected to the second photosensitive switch and the AD pin of the MCU, and the other end is grounded.

[0013] Furthermore, the second photosensitive switch is a photodiode or a photoresistor.

[0014] In another aspect, the present invention provides an aerosol generating device, which includes a shielding member and the aforementioned switching circuit.

[0015] The switch switching circuit and aerosol generating device disclosed in this invention, when the first photosensitive unit and the second photosensitive unit are blocked by the blocking component, the control unit outputs a first control signal and a second control signal respectively; when neither the first photosensitive unit nor the second photosensitive unit is blocked by the blocking component, the control unit outputs a third control signal. The switch switching function is realized through the first control signal, the second control signal and the third control signal. This not only solves the problems of contact oxidation and mechanical wear leading to poor contact in mechanical toggle switches, but also ensures safety, stability and long service life. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a switch switching circuit provided in an embodiment of the present invention;

[0018] Figure 2 This is a circuit diagram of a switch switching circuit provided in an embodiment of the present invention;

[0019] Figure 3 yes Figure 2 The circuit diagram when both the first and second photosensitive switches are photodiodes;

[0020] Figure 4 yes Figure 2 The circuit diagram when both the first and second photosensitive switches are photoresistors.

[0021] Figure 5 This is a schematic diagram of the structure of an aerosol generating device provided in an embodiment of the present invention.

[0022] Figure label:

[0023] 10. Switching circuit; 11. Photosensitive module; 12. Light source module; 13. Control unit; 110. First photosensitive unit; 111. Second photosensitive unit; 100. Aerosol generator; 20. Shielding component. Detailed Implementation

[0024] 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, not all, of the embodiments of the present invention. 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.

[0025] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0026] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0027] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0028] Figures 1 to 5An embodiment of the switching circuit and aerosol generating device provided by the present invention is shown. The switching circuit 10 of this embodiment includes a photosensitive module 11, a light source module 12, and a control unit 13. The photosensitive module 11 includes a first photosensitive unit 110 and a second photosensitive unit 111, and is connected to a power supply unit VDD. The light source module 12 is connected to the power supply unit VDD and provides a light source to the photosensitive module 11. The control unit 13 is connected to the photosensitive module 11 and the light source module 12. When the light source of the first photosensitive unit 110 is blocked by a blocking element, the control unit 13 outputs a first control signal. When the light source of the second photosensitive unit 111 is blocked by the blocking element, the control unit 13 outputs a second control signal. When neither the first photosensitive unit 110 nor the second photosensitive unit 111 is blocked by the blocking element, the control unit 13 outputs a third control signal. In this embodiment, when the first photosensitive unit 110 and the second photosensitive unit 111 are blocked by the blocking element, the control unit 13 outputs a first control signal and a second control signal respectively; when neither the first photosensitive unit 110 nor the second photosensitive unit 111 is blocked by the blocking element, the control unit 13 outputs a third control signal. The switch switching function is realized through the first control signal, the second control signal and the third control signal. This not only solves the problem of poor contact caused by contact oxidation and mechanical wear in mechanical toggle switches, but also ensures safety, stability and long service life.

[0029] In one embodiment, such as this embodiment, the light source module 12 includes a light-emitting diode (LED), the positive terminal of which is connected to the control unit 13, and the negative terminal of which is connected between the negative terminal of the power supply unit VDD and ground. The light source module 12 also includes a first resistor R1, one end of which is connected to the positive terminal of the LED, and the other end of which is connected to the control unit 13. Specifically, as shown... Figure 2 As shown, the control unit 13 is an MCU (Microcontroller Unit), also known as a single-chip microcomputer. One end of the first resistor R1 is connected to the positive terminal of the LED, and the other end is connected to the I / O pin of the MCU. The first resistor R1 is a current-limiting resistor. It should be noted that in this embodiment, by connecting the first resistor R1 in series with the LED, the current of the light source module is limited to prevent excessive current from burning out the LED. Furthermore, by connecting the first resistor R1 in series, the brightness of the LED can be adjusted. It should also be noted that the resistance value of the first resistor R1 is not specifically limited and is determined according to actual needs.

[0030] In one embodiment, such as this embodiment, the first photosensitive unit 110 includes a first photosensitive switch U1, one end of which is connected to the power supply unit VDD, and the other end is connected to the control unit 13. The first photosensitive unit 110 also includes a second resistor R2, one end of which is connected to the first photosensitive switch U1 and the control unit, and the other end is grounded. Specifically, as shown... Figure 2 As shown, one end of the first photosensitive switch U1 is connected to the positive terminal of the power supply unit VDD, and the other end is connected to the AD pin of the MCU. Further, one end of the second resistor R2 is connected to both the first photosensitive switch U1 and the AD pin of the MCU, and the other end is grounded. The second resistor R2 is a voltage divider resistor. It should be noted that in this embodiment, the second resistor R2 is connected in series with the first photosensitive switch U1 to achieve a voltage divider function. It should also be noted that the resistance value of the second resistor R2 is not specifically limited and is determined according to actual needs.

[0031] In one embodiment, such as this embodiment, the first photosensitive switch U1 is a photodiode or a photoresistor. Optionally, as shown... Figure 3 As shown, when the first photosensitive switch U1 is the first photosensitive diode VD1, the negative terminal of the first photosensitive diode VD1 is connected to the positive terminal of the power supply unit VDD, and the positive terminal of the first photosensitive diode VD1 is connected to the AD pin of the MCU and the second resistor R2. The AD pin of the MCU identifies whether the first photosensitive diode VD1 is in the open or closed state according to the voltage value of the first photosensitive diode VD1. It should be noted that when the first photosensitive diode VD1 is conducting, it corresponds to the first photosensitive diode VD1 being in the open state; when the first photosensitive diode VD1 is cut off, it corresponds to the first photosensitive diode VD1 being in the closed state.

[0032] In one embodiment, such as this embodiment, the first photosensitive switch U1 is a first photoresistor RL1, as follows: Figure 4 As shown, one end of the first photoresistor RL1 is connected to the positive terminal of the power supply unit VDD, and the other end is connected to the AD pin of the MCU and the second resistor R2. The AD pin of the MCU identifies whether the first photoresistor RL1 is in the open or closed state according to the voltage value of the first photoresistor RL1. It should be noted that when the first photoresistor RL1 is conducting, it is in the open state; when the first photoresistor RL1 is disconnected, it is in the closed state.

[0033] In one embodiment, such as this embodiment, the second photosensitive unit 111 includes a second photosensitive switch U2. One end of the second photosensitive switch U2 is connected to the power supply unit VDD, and the other end is connected to the control unit 13. The second photosensitive unit 111 also includes a third resistor R3. One end of the third resistor R3 is connected to the second photosensitive switch U2 and the control unit 13, and the other end is grounded. Specifically, as shown... Figure 2 As shown, one end of the second photosensitive switch U2 is connected to the positive terminal of the power supply unit VDD, and the other end is connected to the AD pin of the MCU. Further, one end of the third resistor R3 is connected to both the second photosensitive switch U2 and the AD pin of the MCU, and the other end is grounded. The third resistor R3 is a voltage divider resistor. It should be noted that in this embodiment, the third resistor R3 is connected in series with the second photosensitive switch U2 to achieve a voltage divider function. It should also be noted that the resistance value of the third resistor R3 is not specifically limited and is determined according to actual needs.

[0034] In one embodiment, such as this embodiment, the second photosensitive switch U2 is a photodiode or a photoresistor. Optionally, as shown... Figure 3 As shown, when the second photosensitive switch U2 is the second photosensitive diode VD2, the negative terminal of the second photosensitive diode VD2 is connected to the positive terminal of the power supply unit VDD, and the positive terminal of the second photosensitive diode VD2 is connected to the AD pin of the MCU and the third resistor R3. The AD pin of the MCU identifies whether the second photosensitive diode VD2 is in the open or closed state according to the voltage value of the second photosensitive diode VD2. It should be noted that when the second photosensitive diode VD2 is conducting, it corresponds to the second photosensitive diode VD2 being in the open state; when the second photosensitive diode VD2 is cut off, it corresponds to the second photosensitive diode VD2 being in the closed state.

[0035] In one embodiment, such as this embodiment, the second photosensitive switch U2 is a second photoresistor RL2, as follows: Figure 4 As shown, one end of the second photoresistor RL2 is connected to the positive terminal of the power supply unit VDD, and the other end is connected to the AD pin of the MCU and the third resistor R3. The AD pin of the MCU identifies whether the second photoresistor RL2 is in the open or closed state according to the voltage value of the second photoresistor RL2. It should be noted that when the second photoresistor RL2 is conducting, it is in the open state; when the second photoresistor RL2 is disconnected, it is in the closed state.

[0036] The embodiments of this invention application also provide an aerosol generating device 100, such as... Figure 5As shown, the aerosol generating device 100 includes a blocking member 20 and the aforementioned switch switching circuit 10. The blocking member 20 is disposed between the first photosensitive switch U1 and the second photosensitive switch U2 in the switch switching circuit 10. The blocking member 20 is used to block the light source emitted by the light source module 12 in the switch switching circuit 10 that illuminates the first photosensitive switch U1 or the second photosensitive switch U2. Optionally, the blocking member 20 is a movable T-shaped structure. The T-shaped structure can be set to black. By moving the T-shaped structure closer to the first photosensitive switch U1 or the second photosensitive switch U2, the light source emitted by the light source module 12 that illuminates the first photosensitive switch U1 or the second photosensitive switch U2 can be blocked. Specifically, when the blocking member 20 is moved to the left, the first photosensitive switch U1 is blocked, and the light emitted by the LED cannot reach the first photosensitive switch U1. The second photosensitive switch U2 is not blocked, and the light emitted by the LED can reach the second photosensitive switch U2. Therefore, the first photosensitive switch U1 is in the closed state, and the second photosensitive switch U2 is in the open state. When the blocking member 20 is moved to the right, the second photosensitive switch U2 is blocked, and the light emitted by the LED cannot reach the second photosensitive switch U2. The first photosensitive switch U1 is not blocked, and the light emitted by the LED can reach the first photosensitive switch U1. Therefore, the second photosensitive switch U2 is in the closed state, and the first photosensitive switch U1 is in the open state. When the blocking member 20 is moved to the middle position, the light emitted by the LED can reach both the first photosensitive switch U1 and the second photosensitive switch U2. Therefore, both the first photosensitive switch U1 and the second photosensitive switch U2 are in the open state.

[0037] To facilitate understanding, the working process of the switch switching circuit and the aerosol generator to achieve the switch switching function is described below:

[0038] When the blocking component 20 is moved to the left, the first photosensitive switch U1 is blocked, and the light source emitted by the light-emitting diode (LED) cannot illuminate the first photosensitive switch U1. The second photosensitive switch U2 is not blocked, and the light source emitted by the LED can illuminate the second photosensitive switch U2. Based on the voltage values ​​of the first photosensitive switch U1 and the second photosensitive switch U2, the MCU recognizes that the first photosensitive switch U1 is in the closed state and the second photosensitive switch U2 is in the open state. The MCU outputs a first control signal through the IO pin to control the aerosol generating device, such as controlling the aerosol generating device to perform power-on or unlock, power-off or screen-lock operations.

[0039] When the blocking component 20 is moved to the right, the second photosensitive switch U2 is blocked, and the light emitted by the LED cannot illuminate the second photosensitive switch U2. The first photosensitive switch U1 is not blocked, and the light emitted by the LED can illuminate the first photosensitive switch U1. Based on the voltage values ​​of the first photosensitive switch U1 and the second photosensitive switch U2, the MCU identifies that the first photosensitive switch U1 is in the open state and the second photosensitive switch U2 is in the closed state. The MCU outputs a second control signal through its I / O pin to control the aerosol generator, for example, to control the aerosol generator to power on / off, power off, or lock the screen. It should be noted that when the second control signal controls power on / off, the first control signal controls power off / lock the screen, and vice versa; this will not be elaborated further here.

[0040] When the blocking member 20 is moved to the middle position, the light emitted by the light-emitting diode (LED) can illuminate the first photosensitive switch U1 and the second photosensitive switch U2. Based on the voltage values ​​of the first photosensitive switch U1 and the second photosensitive switch U2, the MCU recognizes that the first photosensitive switch U1 and the second photosensitive switch U2 are both in the open state. The MCU outputs a third control signal through the IO pin to control the aerosol generating device, for example, to control the aerosol generating device to achieve power locking operation.

[0041] The switch switching circuit and aerosol generating device disclosed in this invention, when the first photosensitive unit and the second photosensitive unit are blocked by the blocking component, the control unit outputs a first control signal and a second control signal respectively; when neither the first photosensitive unit nor the second photosensitive unit is blocked by the blocking component, the control unit outputs a third control signal. The switch switching function is realized through the first control signal, the second control signal and the third control signal. This not only solves the problems of contact oxidation and mechanical wear leading to poor contact in mechanical toggle switches, but also ensures safety, stability and long service life.

[0042] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A switching circuit, characterized in that, include: A photosensitive module, comprising a first photosensitive unit and a second photosensitive unit, wherein the photosensitive module is used to connect to a power supply unit; A light source module, which is connected to the power supply unit and provides a light source to the photosensitive module; A control unit, which is connected to the photosensitive module and the light source module; Specifically, when the first photosensitive unit is blocked by the blocking component, the control unit outputs a first control signal; when the second photosensitive unit is blocked by the blocking component, the control unit outputs a second control signal; when neither the first photosensitive unit nor the second photosensitive unit is blocked by the blocking component, the control unit outputs a third control signal. The blocking component is a movable T-shaped structure; The control unit is an MCU, and the light source module includes a light-emitting diode. The positive terminal of the light-emitting diode is connected to the IO pin of the MCU, and the negative terminal of the light-emitting diode is connected between the negative terminal of the power supply unit and ground. The first photosensitive unit includes a first photosensitive switch, one end of which is connected to the power supply unit and the other end is connected to the AD pin of the MCU; The second photosensitive unit includes a second photosensitive switch, one end of which is connected to the power supply unit and the other end is connected to the AD pin of the MCU.

2. The switching circuit according to claim 1, characterized in that, The light source module also includes a first resistor, one end of which is connected to the positive terminal of the light-emitting diode, and the other end is connected to the IO pin of the MCU.

3. The switching circuit according to claim 1, characterized in that, The first photosensitive unit also includes a second resistor, one end of which is connected to the first photosensitive switch and the AD pin of the MCU, and the other end is grounded.

4. The switching circuit according to claim 3, characterized in that, The first photosensitive switch is a photodiode or a photoresistor.

5. The switching circuit according to claim 4, characterized in that, The second photosensitive unit also includes a third resistor, one end of which is connected to the second photosensitive switch and the AD pin of the MCU, and the other end is grounded.

6. The switching circuit according to claim 5, characterized in that, The second photosensitive switch is a photodiode or a photoresistor.

7. An aerosol generating device, characterized in that, The aerosol generating device includes a shielding component and a switching circuit as described in any one of claims 1-6.

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