Electronic device switch trigger control circuit and electronic device

Abstract

The application discloses an electronic device switch trigger control circuit and an electronic device. The electronic device switch trigger control circuit comprises a controller, which is provided with a detection pin and at least one control pin; a switch unit, which comprises a switch element and a load controlled by the switch element, and the at least one control pin of the controller is used to be connected to the switch unit, to enable the at least one control pin to output a control signal to control the on-off of the switch element when the detection pin is high; and an anti-mis-touch unit, which comprises a first detection end connected to the detection pin and a second detection end connected to the ground; the detection pin is pulled low to a low level when the first detection end and the second detection end are connected by a touch piece; and the controller responds to the low level signal of the detection pin to prohibit the output of a conduction signal for turning on the switch element to the at least one control pin. A solution with simple structure, low cost and reliable prevention of mis-touch of the switch in the transportation is realized.

Description

Technical Field

[0001] This invention relates to the field of power control circuit technology for electronic devices, and specifically to a switch triggering control circuit and electronic device for electronic devices. Background Technology

[0002] During transportation and handling of electronic devices after leaving the factory, their physical switches are susceptible to accidental triggering due to external factors such as vibration and compression, leading to abnormal startup of the device within the packaging box. This problem is particularly prominent in devices containing multiple electronic loads (such as UV lamps and cooling fans), such as UV (Ultraviolet) curing equipment. If a UV lamp is accidentally activated in a sealed packaging environment, it will not only deplete the device's battery power, affecting the user's first-time experience, but may also cause serious safety accidents such as fires due to heat accumulation. For designs where the battery is directly soldered to the motherboard, this risk cannot be completely avoided by simply physically disconnecting the power, making the problem even more challenging.

[0003] In existing technologies, solutions to the problem of accidental touches often include adding physical latches or setting up independent transport mode switches. However, these methods often have limitations such as complex structures, increased manufacturing costs, or cumbersome operations (e.g., requiring specific tools or steps to switch modes), making them difficult to widely apply in consumer electronics products that prioritize cost-effectiveness and user experience.

[0004] Therefore, there is an urgent need for a solution that is simple in structure, low in cost, and can reliably prevent accidental activation of the switch during transportation. Summary of the Invention

[0005] Based on the above situation, the main objective of this invention is to provide an electronic device switch trigger control circuit and electronic device, so as to provide a solution that is simple in structure, low in cost and can reliably prevent accidental switch activation during transportation.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: In a first aspect, embodiments of the present invention disclose an electronic device switch trigger control circuit, comprising: The controller is equipped with a detection pin and at least one control pin. A switching unit includes a switching element and a load controlled by the switching element. At least one control pin of the controller is connected to the switching unit to enable the output of a control signal from the at least one control pin to control the on / off state of the switching element when the detection pin is high. The anti-accidental touch unit includes: a first detection terminal connected to the detection pin and a second detection terminal grounded; When the detection pin is turned on by the contact at the first and second detection terminals, it is pulled low to a low level; the controller responds to the low-level signal of the detection pin and disables the output of the on signal of the switching element to at least one control pin. Optionally, at least one control pin includes a first control pin and a second control pin; The switching unit includes: The first switching unit includes a first switching element and a first load controlled by the first switching element; The second switching unit includes a second switching element and a second load controlled by the second switching element; The first switching unit is connected to the first control pin, and the second switching unit is connected to the second control pin. Optionally, one of the first control pin and the second control pin can be reused as a detection pin. Optionally, the multiplexed control pin is a second control pin, and the startup delay of the second load controlled by the second control pin is greater than the startup delay of the first load controlled by the first control pin. Optionally, the first load is a UV curing lamp; the second load is a cooling fan. Optionally, the multiplexed control pin is a second control pin, which controls its corresponding second load using an input-driven method. Optionally, the contact is a conductive film. Optionally, the first detection terminal and the second detection terminal are electrically connected to a conductor on the housing of the electronic device. In a second aspect, embodiments of the present invention disclose an electronic device, including: the electronic device switch trigger control circuit disclosed in the first aspect above. Optionally, the electronic device is a UV curing device. Beneficial effects

[0007] According to an embodiment of the present invention, an electronic device switch triggering control circuit and electronic device are disclosed. By setting an independent anti-accidental touch unit, a definite low-level signal is generated by the physical action of connecting the first detection terminal and the second detection terminal (grounded) with a contact. The controller responds to this signal and prohibits the output of any control signals used to turn on the switching element from the underlying layer. This hardware triggering response mechanism fundamentally disables the switching function of the device in the transportation state (contact connected), has strong anti-interference ability, and can effectively prevent accidental triggering regardless of the vibration or compression environment the device is in. Its safety assurance is significantly better than simple mechanical protection or complex circuit design; that is, it achieves hardware-level forced disabling, resulting in high safety and reliability.

[0008] This architecture has a simple circuit structure, does not depend on a specific number of loads (it can support one or more loads), and does not limit the specific functions of the control pins. It achieves good versatility and scalability, making the solution of this application easy to integrate into various electronic devices. Moreover, the production and implementation costs are extremely low, making it very suitable for consumer electronics products with large-scale applications.

[0009] Before using the device, users simply need to remove the contact pad; the detection pin will then return to a high level, and the controller will subsequently enable the functions of all control pins. This process requires no complex setup or specific tools from the user, making operation extremely simple and intuitive, balancing the needs of transportation safety and a user-friendly out-of-the-box experience. It improves the user experience, and state switching is intuitive and convenient. Other beneficial effects of the present invention will be explained in detail through the introduction of specific technical features and technical solutions in specific embodiments. Those skilled in the art should be able to understand the beneficial technical effects brought about by these technical features and technical solutions through the introduction of these technical features and technical solutions. Attached Figure Description

[0010] The embodiments of the present invention will now be described with reference to the accompanying drawings. In the drawings: Figure 1 This is a schematic diagram illustrating the structural principle of a switch trigger control circuit for an electronic device disclosed in this embodiment. Figure 2 This is a schematic diagram of the principle of another electronic device switch trigger control circuit disclosed in this embodiment; Figure 3 This is a schematic diagram of the structure of a UV curing device disclosed in this embodiment. Detailed Implementation

[0011] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail, but well-known methods, processes, procedures, and elements are not described in detail in order to avoid obscuring the essence of the present invention.

[0012] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0013] Unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as encompassing rather than being exclusive or exhaustive; that is, meaning "including but not limited to."

[0014] In the description of this invention, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0015] To provide a solution that is simple in structure, low in cost, and reliably prevents accidental switch activation during transportation, this embodiment discloses an electronic device switch triggering control circuit. Please refer to [reference needed]. Figure 1 and Figure 2 , Figure 1 This is a schematic diagram illustrating the structural principle of a switch trigger control circuit for an electronic device disclosed in this embodiment. Figure 2 This is a schematic diagram of another electronic device switch trigger control circuit disclosed in this embodiment. The electronic device switch trigger control circuit includes: a controller 1, a switch unit 2, and an anti-accidental touch unit 3, wherein: Controller 1 is provided with a detection pin and at least one control pin. In practical implementation, controller 1 can reuse an existing microcontroller (MCU) or dedicated control chip in the electronic device without the need for additional components, which helps reduce costs and simplify the design. Controller 1 is provided with at least one detection pin (such as...). Figure 1 (as shown by PIN3) and at least one control pin (such as...) Figure 1 (As indicated by PIN1, PIN2, etc.). The firmware of controller 1 is configured to continuously monitor the level state of the detection pin PIN3 and determine whether to allow the control pins (e.g., PIN1, PIN2) to output valid switching control signals based on this state.

[0016] Switching unit 2 includes a switching element and a load controlled by the switching element. At least one control pin of controller 1 is connected to switching unit 2 to enable at least one control pin to output a control signal to control the switching element's on / off state when the detection pin is high. In this embodiment, the load is independently controlled by different switching elements. Please refer to... Figure 1 The switching elements can be implemented using transistors, and the controller's control pins are connected to the control electrodes (e.g., gates) of these switching elements. In normal operating mode (i.e., after the anti-accidental touch function is deactivated, the detection pin PIN3 changes from low to high), when the controller 1's control pin outputs, for example, a high-level signal, the corresponding switching element turns on, thereby supplying power to its load.

[0017] The anti-accidental touch unit 3 includes a first detection terminal 31 connected to the detection pin PIN3 and a second detection terminal 32 grounded; in this embodiment, the first detection terminal 31 and the second detection terminal 32 are connected or disconnected by a removable contact 33 (such as a conductive film).

[0018] In practical implementation, when the first detection terminal 31 and the second detection terminal 32 are connected by the contact piece 33, the detection pin is pulled low to a low level; the controller 1, in response to the low-level signal of the detection pin, prohibits the output of the conduction signal of the conduction switching element to at least one control pin. Specifically: During transport, the anti-accidental touch function is activated. Specifically, during factory shipping, contact 33 is placed between the first detection terminal 31 and the second detection terminal 32 (e.g., contact 33 contacts and covers both the first and second detection terminals 31 and 32), electrically connecting them. This pulls the detection pin PIN3 down to a low level (ground) via contact 33. Controller 1 detects a continuous low-level signal on detection pin PIN3, indicating that the device is in transport mode. At this time, the internal program of controller 1 disables all its control pins (e.g., PIN1, PIN2) from outputting high-level signals that could activate the switching elements. This disables the device's startup function at the lowest level, achieving hardware-level safety protection. Regardless of the vibration or pressure the device experiences during transport, even if its physical switch is accidentally touched, the device cannot be started.

[0019] When in use, the accidental touch prevention is disabled. After the user receives the device, they remove contact 33. At this time, the connection between the detection pin PIN3 and ground is broken. This pin is usually pulled high through an internal or external pull-up resistor. When controller 1 detects that the detection pin PIN3 has gone high, it determines that the accidental touch prevention is disabled and then enables the output function of its control pins (e.g., PIN1, PIN2). Afterwards, when the user operates the physical switches on the device normally, the controller can respond normally and output control signals, and the device resumes normal operation. This process requires no complex setup and provides a good user experience.

[0020] It should be noted that, in the specific implementation process, the detection pin PIN3 can be set separately in controller 1 (e.g., Figure 1 As shown), the detection pin is a separate pin PIN3, specifically used to connect to the anti-accidental touch unit 3. Alternatively, a control pin can be reused as the detection pin PIN3 (e.g., ...). Figure 2 As shown, this illustrates an example of multiplexing the detection pin PIN3 and the control pin PIN2, that is, multiplexing the function of the pin (PIN1 or PIN2) that was originally dedicated to the control function as the detection pin during a specific period of time.

[0021] In a specific embodiment, at least one control pin includes a first control pin PIN1 and a second control pin PIN2; the switching unit 2 includes a first switching unit 21 and a second switching unit 22, the first switching unit 21 including a first switching element Q1 and a first load L1 controlled by the first switching element Q1; the second switching unit 22 including a second switching element Q2 and a second load L2 controlled by the second switching element Q2; the first switching unit 21 is connected to the first control pin PIN1, and the second switching unit 22 is connected to the second control pin PIN2. Specifically, please refer to... Figure 1 and Figure 2 : The first control pin PIN1 is used to control and drive the first switching unit 21, and the second control pin PIN2 is used to control and drive the second switching unit 22.

[0022] The first switching unit 21 is composed of a first switching element Q1 and a first load L1 controlled by it connected in series. The control electrode (e.g., the gate) of the first switching element Q1 is connected to the first control pin PIN1 of the controller. When PIN1 outputs a valid control signal (e.g., a high level), the first switching element Q1 is turned on, and the first load L1 is energized.

[0023] The second switching unit 22 is composed of a second switching element Q2 and a second load L2 controlled by it connected in series. The control electrode (e.g., the gate) of the second switching element Q2 is connected to the second control pin PIN2 of the controller. When PIN2 outputs a valid control signal, the second switching element Q2 is turned on, and the second load L2 is energized.

[0024] It should be noted that in this embodiment, the first switching element Q1 and the second switching element Q2 are NMOS transistors. In actual implementation, they can also be PMOS transistors or other transistors that can perform switching functions.

[0025] In an optional embodiment, the first load L1 is a UV curing lamp; the second load L2 is a cooling fan.

[0026] In this embodiment, both global disabling and independent controllability are achieved through independent load switching control. Details are as follows: In transport mode, the entire device is disabled. When the contact 33 of the anti-accidental touch unit 3 is turned on, causing the detection pin PIN3 to go low, the controller 1 responds globally, simultaneously disabling the output of valid conduction signals from the first control pin PIN1 and the second control pin PIN2. Therefore, regardless of which load (L1 or L2) is accidentally touched, the entire device will fail to start, thus ensuring the safety of the electronic equipment during transport.

[0027] In operation, the switches are independently controllable. When contact 33 is removed and detection pin PIN3 returns to a high level, controller 1 enables the output functions of control pins PIN1 and PIN2. At this time, the first load L1 and the second load L2 can be controlled independently. For example, the electronic device logic can be designed to enable L1 and L2 simultaneously, or to enable them sequentially according to a specific timing sequence, or to control one of them individually based on different conditions, thus realizing a flexible control strategy.

[0028] This embodiment refines the design and achieves the advantages of modularity and scalability. This dual-path independent control structure is suitable for electronic devices with specific control requirements, such as UV curing equipment (e.g., turning on the lights / fans without turning on the fans, etc., turning on the lights and fans simultaneously).

[0029] To save controller pin resources and simplify circuit design, in optional embodiments, existing control pins can be reused as detection pins. For details, please refer to... Figure 2 One of the first control pin PIN1 and the second control pin PIN2 is reused as the detection pin. Figure 2 This illustrates the scenario where the second control pin PIN2 of controller 1 is reused. The second control pin PIN2 simultaneously performs two functions: first, as a normal control pin, it outputs signals to drive the second switching unit 22; second, during specific periods (such as the power-on initialization phase), it acts as a detection pin to read the status of the anti-accidental touch unit 3. Its specific working logic and program control flow are as follows: Initialization phase: After the electronic device is powered on, the controller 1 first configures the second control pin PIN2 to input mode. In this mode, the second control pin PIN2 is used to detect its own level state, which is determined by the contact 33 of the anti-accidental touch unit 3.

[0030] When contact 33 connects the first detection terminal 31 and the second detection terminal 32 (i.e., grounded), the second control pin PIN2 is continuously pulled low. Controller 1 reads the continuous low level during initialization detection, thus determining that the device is in transport mode.

[0031] When contact 33 is removed, the second control pin PIN2 is pulled high through a pull-up resistor (not shown in the figure, which can be built-in or external). The controller reads the high level and determines that it is in use mode.

[0032] Operation phase: After completing the status detection, controller 1 switches functions based on the judgment result.

[0033] If the device is determined to be in transport mode, controller 1 may adopt one of the following strategies: keep the second control pin PIN2 in input mode or set it to invalid output, and simultaneously disable the output function of the first control pin PIN1, thus globally disabling the switching function of the entire device. Alternatively, switch the second control pin PIN2 to output mode, but force it to output a low level (or invalid signal), and similarly disable the output of the first control pin PIN1.

[0034] If the system is determined to be in operating mode, controller 1 will switch the second control pin PIN2 to standard output mode. At this time, both the first control pin PIN1 and the second control pin PIN2 are enabled, and can respond normally to switching commands, independently controlling the first load L1 and the second load L2.

[0035] In this embodiment, pin reuse can save dedicated detection pins, which is especially important for microcontrollers (MCUs) with a limited number of pins. It helps to reduce chip costs or select controllers with smaller packages, which is in line with the design trend of miniaturization and cost reduction of electronic products.

[0036] To enhance the circuit's anti-interference capability and reliability during state transitions, in an optional embodiment, the multiplexed control pin is the second control pin PIN2. The startup delay of the second load L2 controlled by the second control pin PIN2 is greater than the startup delay of the first load L1 controlled by the first control pin PIN1. For details, please refer to... Figure 2 The following is a typical application scenario: the first load L1 is a UV curing lamp, which is characterized by almost instantaneous lighting upon power-up (short start-up delay); the second load L2 is a cooling fan, whose motor takes a certain amount of time to reach its rated speed from rest (long start-up delay). In this embodiment, the second control pin PIN2, which controls the fan (long start-up delay), is preferentially selected as the multiplexed pin instead of the first control pin PIN1, which controls the UV lamp (short start-up delay). This utilizes the inherent start-up delay of the fan to provide a stable time window for the controller's state detection logic.

[0037] In a practical application scenario, when the user peels off contact 33, the device may generate a brief pulse in the switching signal due to slight shaking or static electricity. If the first control pin PIN1 controlling the UV lamp (fast start) is reused, this brief pulse may cause the UV lamp to flicker. However, when the second control pin PIN2 controlling the fan (slow start) is reused, even with a brief pulse, the fan cannot instantly reach its effective speed due to mechanical inertia. The controller has more time (i.e., within the fan's start-up delay) to determine whether the final level of the second control pin PIN2 is a continuous high level (after the film has been peeled off) or a brief interference, thus making a correct judgment and effectively preventing the UV lamp from being accidentally turned on momentarily.

[0038] In this embodiment, loads with long startup delays (such as fans) start before UV lamps with short startup delays. Multiplexing the second control pin PIN2 as a detection pin logically binds fan control to the device's enable state, further ensuring the security of the device startup sequence.

[0039] In this embodiment, hardware characteristics (load startup delay) are combined with software control logic, thereby improving the reliability of the anti-accidental touch circuit and further optimizing the stability during state switching.

[0040] To avoid misjudgment of the second control pin and ensure successful triggering of the second switching unit, in an optional embodiment, the multiplexed control pin is the second control pin PIN2. The second control pin PIN2 controls its corresponding second load L2 using an input-driven method. For details, please refer to... Figure 2 In this embodiment, the second control pin PIN2 of the controller 1 is configured as a multiplexed pin. In the anti-accidental touch unit 3, the first detection terminal 31 is directly connected to PIN2; the second detection terminal 32 is grounded; and the contact piece 33 is equivalent to a removable short-circuit piece. When the contact piece covers and connects the first detection terminal 31 and the second detection terminal 32, it is equivalent to forcibly short-circuiting PIN2 to ground.

[0041] In this embodiment, the second control pin PIN2 is set as an input driver, instead of a conventional output driver. The specific input driver implementation can be either active low or active high.

[0042] In one embodiment, when the input drive uses a low-level active trigger, a pull-up resistor is connected between the power supply VCC and the second control pin PIN2. One end of the triggered physical button (e.g., K2) is connected to the second control pin PIN2, and the other end is grounded. In this case, when the button is not pressed, the pin level is determined by the pull-up resistor; when the button is pressed, the pin is pulled low. Its operation is as follows: In the transport state, the contact 33 covers the connection, and the second control pin PIN2 is continuously forced low to a low level. At this time, regardless of whether the physical button (e.g., K2) is accidentally pressed, since the second control pin PIN2 has been clamped to a low level by the contact 33, the action of the physical button (e.g., K2) cannot change the state of the second control pin PIN2.

[0043] When in use, if the user removes contact 33, the second control pin PIN2 is no longer forcibly pulled low. If the physical button (e.g., K2) is also not pressed, the second control pin PIN2 is pulled high through the pull-up resistor. The controller detects this high level and determines that the anti-accidental touch state (transportation state) has been deactivated. If the user presses the physical button (e.g., K2), the second control pin PIN2 is pulled low from high. The controller detects this high-to-low level transition and identifies it as a valid user trigger signal, at which point the corresponding load can be driven.

[0044] In this embodiment, an unconventional input drive is employed, utilizing pull-up resistors and a grounding button to generate a recognizable level change signal, rather than a simple level state. This achieves level transition detection (high level to low level), which is more reliable than simple level detection and effectively avoids false triggering caused by circuit noise, thereby improving anti-interference capability. In this embodiment, the second control pin PIN2 serves as an input point for detecting the state of contact 33, an input point for detecting user trigger commands, and an output point for controlling the load, thus saving pin resources.

[0045] In another embodiment, when the input drive is triggered by a high-level active signal, a pull-up resistor is connected between the power supply VCC and the second control pin PIN2. One end of the pull-up resistor is connected to the power supply VCC, and the other end is directly connected to the second control pin PIN2. One end of the physical button (e.g., K2) is connected to VCC, and the other end is connected to PIN2. Its operation is as follows: In the transport state, contact 33 covers the connection, and the second control pin PIN2 is forcibly pulled low to ground (low level) by contact 33. Regardless of the state of the physical button (e.g., K2), the controller detects the low level and disables all functions.

[0046] In use, the user removes contact 33. When the physical button (e.g., K2) is not pressed, the second control pin PIN2 is floating, enabling the system but without a trigger signal. When the physical button (e.g., K2) is pressed, the physical button (e.g., K2) directly connects the power supply VCC to the second control pin PIN2, generating a high level and creating a current path. This trigger can then be identified by a continuous high level or by combining it with other logic (such as edge detection).

[0047] In an optional embodiment, the contact 33 is a conductive film. The conductive film can be directly attached to the inner surface of the electronic device's casing or a specific location on the circuit board (PCB), precisely covering and short-circuiting the pads or contacts corresponding to the first detection terminal 31 and the second detection terminal 32. In specific implementations, a handle for easy tearing can be provided at one corner of the conductive film. Its adhesive backing can be designed for single use; that is, if it is peeled off after application, its stickiness will significantly decrease or leave obvious marks. This can serve as a visual indication of whether the device has been used, facilitating identification by manufacturers and consumers.

[0048] In this embodiment, a conductive film is used as the contact pad 33, which has the advantages of extremely low cost, simple assembly, and high reliability. At the factory, users can quickly complete the installation, just like applying a label. For users, removing the film is simple and provides a good experience. Furthermore, this design increases the overall thickness and structural complexity of the device by almost nothing.

[0049] For ease of user operation, in an optional embodiment, the first detection terminal 31 and the second detection terminal 32 are electrically connected to a conductor on the electronic device housing. Please refer to... Figure 3 , Figure 3 This is a schematic diagram of a UV curing device disclosed in this embodiment. The outer casing of the electronic device has two partially conductive areas formed by embedding and electroplating. These two conductive areas serve as the first detection terminal 31 and the second detection terminal 32, respectively. At the factory, the contact piece 33 (conductive film) is attached to the device casing, simultaneously covering and connecting the first detection terminal 31 and the second detection terminal 32. When in use, the user only needs to peel the entire conductive film off the device casing to deactivate the anti-accidental touch function.

[0050] In this embodiment, the user does not need to open the device or search for internal switches; they can operate directly from the outer casing, which is very intuitive and convenient. After removing the protective film, the device has a clean appearance without any unnecessary switches or holes.

[0051] This embodiment also discloses an electronic device, including: the electronic device switch trigger control circuit disclosed in the above embodiment. In an optional embodiment, the electronic device is a UV curing device, the first load is a UV lamp, and the second load is a fan. Please refer to... Figure 3 The UV curing equipment is equipped with a first physical button K1 and a second physical button K2, wherein: The first physical button K1 is connected to the trigger circuit of the first control pin PIN1. When the user presses the first physical button K1, a signal is generated to PIN1. After the controller responds, it outputs a high-level control signal to drive the first switching element Q1 (such as an NMOS transistor) to conduct, so that the UV curing lamp (first load L1) is powered on and works.

[0052] The second physical button K2 is connected to the trigger circuit of the second control pin PIN2. In transport mode, the second control pin PIN2 is forcibly pulled low, and the controller is prohibited from outputting signals regardless of whether the second physical button K2 is pressed. The second switching element Q2 (such as an NMOS transistor) cannot be turned on, and the fan (second load L2) does not start. In use mode, the second control pin PIN2 returns to the triggerable state. When the user presses the second physical button K2, the controller detects a valid trigger signal (such as a low-level transition or a high-level transition) and outputs a control signal to turn on the second switching element Q2 (such as an NMOS transistor), and the fan starts.

[0053] According to an embodiment of the present invention, an electronic device switch triggering control circuit and electronic device are disclosed. By setting an independent anti-accidental touch unit, a definite low-level signal is generated by the physical action of connecting the first detection terminal and the second detection terminal (grounded) with a contact. The controller responds to this signal and prohibits the output of any control signals used to turn on the switching element from the underlying layer. This hardware triggering response mechanism fundamentally disables the switching function of the device in the transportation state (contact connected), has strong anti-interference ability, and can effectively prevent accidental triggering regardless of the vibration or compression environment the device is in. Its safety assurance is significantly better than simple mechanical protection or complex circuit design; that is, it achieves hardware-level forced disabling, resulting in high safety and reliability.

[0054] This architecture has a simple circuit structure, does not depend on a specific number of loads (it can support one or more loads), and does not limit the specific functions of the control pins. It achieves good versatility and scalability, making the solution of this application easy to integrate into various electronic devices. Moreover, the production and implementation costs are extremely low, making it very suitable for consumer electronics products with large-scale applications.

[0055] Before using the device, users simply need to remove the contact pad; the detection pin will then return to a high level, and the controller will subsequently enable the functions of all control pins. This process requires no complex setup or specific tools from the user, making operation extremely simple and intuitive, balancing the needs of transportation safety and a user-friendly out-of-the-box experience. It improves the user experience, and state switching is intuitive and convenient. It will be understood by those skilled in the art that the above-described preferred solutions can be freely combined and superimposed without conflict. The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings; for example, two consecutively indicated blocks may actually be executed substantially in parallel, or sometimes in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions. The numbering of each step in this document is for ease of explanation and reference only and is not intended to limit the order of execution. The specific execution order is determined by the technology itself, and those skilled in the art can determine various permissible and reasonable orders based on the technology itself.

[0056] Those skilled in the art will understand that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0057] It should be understood that the above embodiments are merely exemplary and not restrictive. Various obvious or equivalent modifications or substitutions that can be made by those skilled in the art regarding the above details without departing from the basic principles of the present invention will be included within the scope of the claims of the present invention.

Claims

1. A switch trigger control circuit for an electronic device, characterized in that, include: The controller (1) is provided with a detection pin and at least one control pin; The switching unit (2) includes a switching element and a load controlled by the switching element. At least one control pin of the controller (1) is connected to the switching unit (2) and is used to enable the at least one control pin to output a control signal to control the switching element when the detection pin is high. The anti-accidental touch unit (3) includes: a first detection terminal (31) connected to the detection pin and a second detection terminal (32) grounded. When the detection pin is turned on by the first detection terminal (31) and the second detection terminal (32) by the contact piece (33), it is pulled low to a low level; the controller (1) responds to the low level signal of the detection pin and prohibits the output of the turn-on signal to the at least one control pin to turn on the switching element.

2. The electronic device switch trigger control circuit as described in claim 1, characterized in that, The at least one control pin includes a first control pin (PIN1) and a second control pin (PIN2). The switching unit (2) includes: The first switching unit (21) includes a first switching element (Q1) and a first load (L1) controlled by the first switching element (Q1). The second switching unit (22) includes a second switching element (Q2) and a second load (L2) controlled by the second switching element (Q2); The first switch unit (21) is connected to the first control pin (PIN1), and the second switch unit (22) is connected to the second control pin (PIN2).

3. The electronic device switch trigger control circuit as described in claim 2, characterized in that, One of the first control pin (PIN1) and the second control pin (PIN2) is reused as the detection pin.

4. The electronic device switch trigger control circuit as described in claim 3, characterized in that, The reused control pin is the second control pin (PIN2). The startup delay of the second load (L2) controlled by the second control pin (PIN2) is greater than the startup delay of the first load (L1) controlled by the first control pin (PIN1).

5. The electronic device switch trigger control circuit as described in claim 4, characterized in that, The first load (L1) is a UV curing lamp; the second load (L2) is a cooling fan.

6. The electronic device switch trigger control circuit as described in any one of claims 3-5, characterized in that, The multiplexed control pin is the second control pin (PIN2), which controls its corresponding second load (L2) using an input-driven method.

7. The electronic device switch trigger control circuit as described in any one of claims 1-4, characterized in that, The contact piece (33) is a conductive film.

8. The electronic device switch trigger control circuit as described in claim 7, characterized in that, The first detection terminal (31) and the second detection terminal (32) are electrically connected to the conductor of the electronic device housing.

9. An electronic device, characterized in that, include: The electronic device switch trigger control circuit as described in any one of claims 1-8.

10. The electronic device as claimed in claim 9, characterized in that, The electronic device is a UV curing device.

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