A charging device with a physical power-off mechanism after charging and automatic ejection

Abstract

This invention discloses a physical power-off mechanism after full charging and an automatic unplugging charging device, including a housing. The housing is provided with plug pins for connecting to a mains power socket and a power output terminal. A drive mechanism and a control board are disposed in the housing. The drive mechanism, plug pins, and power output terminal are all electrically connected to the control board. The control board is provided with a control module, a charging module, and a trigger module. The trigger module is used to trigger control commands. The control module controls the drive mechanism to perform a separation action according to the trigger control commands fed back by the trigger module, so that the control board completely disconnects the mains power supply.

Description

Technical Field

[0001] This invention relates to the field of charging device technology, specifically to a physical power-off mechanism after full charging and an automatic unplugging charging device. Background Technology

[0002] Currently, electronic devices such as mobile phones, iPads, and smartwatches are all charged using chargers connected to AC power outlets or power strips. Existing chargers generally have the following problems: First, the charger remains powered on even after the device is fully charged. Prolonged float charging can easily cause battery aging, bulging, shortened lifespan, and even overheating and fire hazards. Second, the charger needs to be manually plugged in and unplugged or physically disconnected via a power strip switch. However, current usage often involves leaving the charger or adapter plugged in and powered on, resulting in prolonged idle standby, posing safety hazards and wasting energy.

[0003] Among existing patent technologies, patent number ZL201520973268.3 provides an automatic power-off mobile phone charger. This charger uses a relay between the charging circuit and the mains power supply, and a controller to operate the relay to disconnect the charging circuit from the mains power after a set time. This avoids safety hazards associated with prolonged periods of continuous use or being left plugged in. Patent number ZL202120933660.0 provides a power-off protection mobile phone charger with a timer. Pressing the timer button starts it, and the time is displayed on the screen. When the time is up, the timer sends a signal to the relay, which shuts down the circuitry within the charging electronic unit. Alternatively, the mobile terminal can send a signal to a signal receiver, which then sends a signal to the relay, causing the relay to shut down the circuitry within the charging electronic unit.

[0004] Although both of the above chargers can achieve automatic power-off function, they are both power-off at the circuit level, only cutting off the control circuit or the charging circuit. After power-off, the plug and pins of the charger remain physically connected to the mains socket, and the charger is still in a powered standby state. This cannot completely eliminate no-load power consumption and safety hazards, and further improvements are needed. Summary of the Invention

[0005] The purpose of this invention is to provide a charging device that automatically unplugs after being fully charged, aiming to improve the existing chargers with automatic power-off function, which only disconnect power at the circuit level. After power-off, the plug pins and internal electronic components of the charger still maintain physical connection and power supply with the mains socket, which cannot completely eliminate the problem of no-load power consumption and the safety hazards of the charger or adapter itself.

[0006] The present invention is implemented as follows: a physical power-off mechanism after full charging, comprising; The housing has a plug and pins for connecting to a mains power outlet and a power output terminal. A drive mechanism and a control board are housed within the housing. The drive mechanism, plug and pins, and power output terminal are all electrically connected to the control board. The control board includes a control module, a charging module, and a trigger module. The trigger module is used to trigger control commands. Based on the trigger control commands fed back from the trigger module, the control module controls the drive mechanism to perform a separation action, completely disconnecting the mains power supply to the control board.

[0007] Furthermore, the trigger module is configured as a current detection module, a timing module, or an infrared remote control receiver module.

[0008] Furthermore, the drive mechanism includes a drive motor, a drive gear and a sliding seat fixedly connected to the output end of the drive motor. The sliding seat has a stroke groove, and a rack is provided on the side wall of the stroke groove. The drive gear meshes with the rack and the two form a linkage state. When the drive motor rotates clockwise or counterclockwise, the drive gear moves the sliding seat back and forth in linkage. The front end of the sliding seat is provided with a first latch.

[0009] Furthermore, a sliding groove is provided at the front end of the housing, and a sliding block and several first elastic bodies are movably disposed in the sliding groove. The several first elastic bodies are located behind the sliding block. The plug pin is fixedly disposed on the sliding block, and the tail end of the plug pin extends through the sliding block into the housing. A second buckle is provided on the sliding block or at the inner end of the plug pin and at a position corresponding to the first buckle. When the sliding block is in the initial state, the sliding block is hidden in the sliding groove, and the first buckle and the second buckle are locked together. At the same time, the several first elastic bodies are all in a compressed state.

[0010] Furthermore, the control board is provided with at least two sets of electrode plates spaced apart, and each electrode plate is respectively arranged in correspondence with the plug pin. When the sliding block is in the initial state, the inner end of the plug pin and the electrode plate abut against each other to form a power supply state.

[0011] Furthermore, a second elastic body is provided at one end of the sliding seat, the second elastic body abuts against the sliding seat, the second elastic body is disposed opposite to the first buckle, and the second elastic body is used for the movement and reset of the sliding seat; When the trigger module detects that the current at the power output terminal is less than the set value, the control module controls the drive motor to rotate. When the drive motor rotates, the sliding seat moves backward in sync with the motor. The first latch on the sliding seat disengages from the second latch on the sliding block. At the same time, several first elastic bodies reset, pushing the housing to move backward and moving the plug pins away from the electrode plates. At this time, the control board is in a power-off state. Under the reset force of the second elastic body, the sliding seat resets to its initial state. When the user returns, push the housing downwards until the first and second latches engage and lock together, synchronizing the plug pins with the electrode plates and establishing a power supply state.

[0012] Furthermore, the drive mechanism includes a telescopic motor and a base fixedly connected to the power output terminal of the telescopic motor. A conductive post is provided on the base, and the conductive post is electrically connected to the control board. A fixed seat is provided in the housing, and the plug pin is mounted on the fixed seat. The fixed seat has conductive holes connected to the plug pin, and the conductive holes are engaged with the conductive post. When the control module controls the drive mechanism to perform a separation action, the telescopic motor drives the base and conductive post to retract, causing the conductive post to disengage from the conductive hole, cutting off the electrical connection between the plug pin and the control board, thus achieving a physical power cut-off.

[0013] Furthermore, a reset button is provided on the housing. The reset button is electrically connected to the control board. When the reset button is pressed, the control module controls the telescopic motor to run in reverse, causing the base and conductive post to extend, so that the conductive post is re-inserted into the conductive hole, restoring the electrical connection between the plug pin and the control board.

[0014] Furthermore, a power supply battery is provided in the housing, and the power supply battery is electrically connected to the reset button and the control board.

[0015] Furthermore, the charging module includes a rectifier unit, a filter unit, and a voltage regulator unit. The rectifier unit is used to convert AC mains power into DC power, the filter unit is used to filter out voltage ripple, and the voltage regulator unit is used to output a stable DC voltage to the power output terminal.

[0016] A charging device that automatically disconnects after being fully charged, comprising: The housing has a plug and pins for connecting to a mains power outlet and a power output terminal. The housing contains a drive mechanism and a control board. The drive mechanism, plug and pins, and power output terminal are all electrically connected to the control board. The control board has a control module, a charging module, and a trigger module. The trigger module is used to trigger control commands. The control module controls the drive mechanism to perform a separation action based on the trigger control commands fed back by the trigger module, so that the plug and pins are disconnected from the mains power outlet.

[0017] Furthermore, the trigger module is configured as a current detection module, a timing module, or an infrared remote control receiver module.

[0018] Furthermore, the drive mechanism includes a telescopic motor and a push rod fixedly connected to the power output end of the telescopic motor. The housing is provided with a through hole for the push rod to enter and exit. When the control module controls the drive mechanism to perform a separation action, the telescopic motor drives the push rod to extend out of the housing and press against the mains socket, causing the plug pins to disengage from the mains socket.

[0019] Furthermore, the drive mechanism includes a drive motor, a drive gear, and a push rod. The drive gear is fixedly connected to the power output terminal of the drive motor. The push rod has a rack portion and a push rod portion. The rack portion is meshed with the drive gear. The push rod is slidably disposed in the housing. The housing is provided with a through hole for the push rod portion to enter and exit. When the control module controls the drive mechanism to perform a separation action, the drive motor drives the drive gear to rotate, and the drive gear drives the rack portion to move linearly, causing the push rod portion to extend out of the housing and press against the mains socket, causing the plug pins to disengage from the mains socket.

[0020] Furthermore, the drive mechanism includes a telescopic motor and a connector fixedly connected to the power output end of the telescopic motor. The plug pin is fixedly connected to the connector, and the housing is provided with a through hole for the plug pin to enter and exit. When the control module controls the drive mechanism to perform a separation action, the telescopic motor drives the connector and the plug pin to retract, causing the plug pin to disengage from the mains socket.

[0021] Furthermore, the housing is provided with a sliding cavity adapted to the connector, the connector being slidably disposed in the sliding cavity, and the length direction of the sliding cavity being the same as the length direction of the plug pin.

[0022] Furthermore, the drive mechanism includes a telescopic motor and a sliding seat fixedly connected to the power output end of the telescopic motor. A fixed guide seat is provided on the housing, and the plug pins are disposed on the fixed guide seat. A through hole is provided on the housing for the sliding seat to enter and exit, and the fixed guide seat is part of the hole wall of the through hole. When the control module controls the drive mechanism to perform a separation action, the telescopic motor drives the fixed guide seat to extend out of the housing and press against the mains socket, causing the plug pins to disengage from the mains socket.

[0023] Furthermore, the fixed guide seat has a rectangular structure, and the sliding seat has a U-shaped structure.

[0024] Furthermore, the prompting module includes a buzzer and an LED light, and the prompting signal is a prompting sound emitted by the buzzer and a flashing light emitted by the LED light.

[0025] Furthermore, the fixed guide seat has a rectangular, elliptical, or circular structure, and the sliding seat has an open annular structure surrounding the fixed guide seat. The electrical connection wire between the plug pin and the control board passes through the open opening and connects to the control board.

[0026] Furthermore, it also includes a prompting module, which is electrically connected to the control module. When the triggering module detects that the charging current is less than or equal to a set value, the control module controls the prompting module to issue a prompting signal.

[0027] Furthermore, the prompting module includes a buzzer, and the prompting signal is a prompting tone emitted by the buzzer.

[0028] Furthermore, the prompting module includes a buzzer and an LED light, and the prompting signal is a prompting sound emitted by the buzzer and a flashing light emitted by the LED light.

[0029] Furthermore, the housing is provided with a light hole, and a transparent cover is provided at the light hole.

[0030] Furthermore, the charging module includes a rectifier unit, a filter unit, and a voltage regulator unit. The rectifier unit is used to convert AC mains power into DC power, the filter unit is used to filter out voltage ripple, and the voltage regulator unit is used to output a stable DC voltage to the power output terminal.

[0031] Furthermore, the housing is provided with an enable button, which is electrically connected to the control board and is used to turn the prompt module's working status on or off.

[0032] Furthermore, the outer part of the shell is covered with a rubber sleeve, which includes at least four corner portions that wrap around the four corners of the shell and protrude from the corner surfaces of the shell.

[0033] Furthermore, a connecting rope is provided on the housing or rubber sleeve, and a suction cup is connected to the other end of the connecting rope.

[0034] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, by setting up a drive mechanism and a trigger module, allows the trigger module to send a trigger control command after the charged device is fully charged. The control module then uses the trigger control command to control the drive mechanism to disconnect the input power or pull out the entire charging device. This physically disconnects the charging power to the charged device, preventing overcharging and reducing battery damage. At the same time, it also prevents the electronic components on the internal circuit board of the charging device from being powered on for extended periods, which could accelerate aging or even cause overheating and safety hazards.

[0035] 2. This invention operates independently without needing to communicate with the device being charged to obtain its real-time power information, making it more convenient and cost-effective to manufacture, thus facilitating widespread adoption. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the internal structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the structure in Embodiment 1 of the present invention, in which the sliding block extends out of the housing and the input power is disconnected; Figure 3 This is a three-dimensional structural schematic diagram of Embodiment 1 of the present invention; Figure 4 This is a structural cross-sectional view of Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the sliding seat in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the initial state of the sliding block in Embodiment 1 of the present invention; Figure 7 This is in Embodiment 1 of the present invention Figure 6 A magnified view of a portion of the image; Figure 8 This is a schematic diagram of the internal structure of the sliding groove in Embodiment 1 of the present invention; Figure 9 This is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure 10 This is a schematic diagram of the structure of Embodiment 3 of the present invention; Figure 11 This is a schematic diagram of the structure of Embodiment 4 of the present invention; Figure 12 This is a schematic diagram of the structure of Embodiment 5 of the present invention; Figure 13 This is a schematic diagram of the structure of Embodiment 6 of the present invention; Figure 14 This is a side view of Embodiment 6 of the present invention; Figure 15 This is a schematic diagram of the structure of Embodiment 7 of the present invention; Figure 16 This is a schematic diagram of the structure of Embodiment 8 of the present invention; Figure 17 This is a schematic diagram illustrating the working principle of Embodiments 1 and 2 of the present invention. Detailed Implementation

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details: Example 1

[0039] like Figure 1-8 and Figure 17 As shown, a physical power-off mechanism after full charging includes: a housing 1, on which are provided plug pins 2 for plugging into a mains socket and a power output terminal 3. The power output terminal 3 is used to connect to the device being charged and can be configured as a charging cable or charging socket with a connector, such as a TP-C socket. The device being charged includes, but is not limited to, mobile phones, iPads, smartwatches, etc. A drive mechanism and a control board 9 are provided in the housing 1. The drive mechanism, plug pins 2, and power output terminal 3 are all electrically connected to the control board 9. The control board 9 is provided with a control module, a charging module, a trigger module, and a matching drive circuit. The trigger module is configured as a current detection module, a timing module, or an infrared remote control receiver module, etc. The core of the control module adopts an 8-bit microcontroller chip, which can be any one of STM8S003F3P6, STC89C52RC, or PIC12F675. The trigger module has an ACS712 Hall sensor / INA219 current monitoring chip. The charging module includes a rectifier unit, a filter unit, and a voltage regulator unit. The rectifier unit converts AC mains power into DC mains power. The filter unit filters out voltage ripple. The voltage regulator unit outputs a stable DC voltage to the power output terminal. The voltage regulator unit includes a charging management chip and peripheral circuitry. In this embodiment, the trigger module is set as a current detection module. The current detection module detects the real-time charging current at the power output terminal 3 or the power input terminal. When the charging current is less than or equal to a set value, the control module controls the drive mechanism to perform a separation action, so that the control board 9 completely disconnects the AC mains power supply. In this way, by setting up a drive mechanism and a trigger module, when the device being charged is fully charged, the trigger module sends out a trigger control command. The control module then uses the trigger control command to control the drive mechanism to disconnect the input power, so that the device being charged is physically disconnected from the charging power supply to avoid overcharging and reduce battery damage. At the same time, it can also prevent the electronic components on the circuit board inside the charging device from being powered on for a long time, which can accelerate aging or even cause overheating and safety hazards.

[0040] In some embodiments, the drive mechanism includes a drive motor 6, a drive gear 7 and a sliding seat 8 fixedly connected to the output end of the drive motor 6. The sliding seat 8 has a travel groove 80 on its upper surface, the width of which is greater than the diameter of the drive gear 7. A rack portion 51 is provided on the side wall of the travel groove 80, and the rack portion 51 is disposed opposite to the drive gear 7. The drive gear 7 meshes with the rack portion 51, and the two are in a linked state. When the drive motor 6 rotates clockwise or counterclockwise, the drive gear 7 moves the sliding seat 8 back and forth. A first latch 81 is provided at the front end of the sliding seat 8. A sliding groove 100 is provided at the front end of the housing 1, and the sliding groove 100 has a designed depth. The sliding groove 100 is movably provided with a sliding block 101 and several first elastic bodies 102. The first elastic bodies 102 are specifically springs. The several first elastic bodies 102 are located behind the sliding block 101. In this embodiment, four limiting posts 30 are provided at the four corners of the back of the sliding block 101. The number of first elastic bodies 102 is four, which are respectively sleeved on the four limiting posts 30. Holes are opened at the bottom of the sliding groove 100 and at positions corresponding to the four limiting posts 30. The four limiting posts 30 extend through the corresponding holes into the interior of the housing 1. Limiting screws are provided at the ends of the limiting posts 30 inside the housing 1. The diameter of the limiting screws is larger than the diameter of the holes to prevent the sliding block 101 from falling off. The plug pin 2 is fixedly mounted on the sliding block 101. The tail end of the plug pin 2 protrudes into the housing 1 through the sliding block 101. A second buckle 103 is provided on the sliding block 101 or at the inner end of the plug pin 2, corresponding to the first buckle 81. In this embodiment, the first buckle 81 is located on the sliding block 101. The inner end of the plug pin 2 penetrates the sliding block 101 and extends horizontally into the sliding groove 100. When the sliding block 101 is in its initial state, it is hidden in the sliding groove 100, and the first buckle 81 and the second buckle 103 are locked together. At the same time, several first elastic bodies 102 are in a compressed state. The control board 9 is provided with at least two sets of electrode plates 300 spaced apart. The electrode plates 300 extend into the sliding groove 100 through the corresponding housing 1. The electrode plates 300 are respectively connected to the plug pin 2. In a one-to-one correspondence setting, when the sliding block 101 is in the initial state, the inner end of the plug pin 2 abuts against the electrode plate 300 to form a power supply state; a second elastic body 82 is provided at one end of the sliding seat 8, the second elastic body 82 abuts against the sliding seat 8, the second elastic body 82 is opposite to the first buckle 81, the second elastic body 82 is used for the movement and reset of the sliding seat 8, the second elastic body 82 is specifically a spring, and an installation groove 60 is also provided at the bottom of the sliding groove 100, the sliding seat 8 and the second elastic body 82 are both located in the installation groove 60, and a cover plate 40 is fixed to the opening of the installation groove 60 by screws.The cover plate 40 has an opening for clearance, and the second latch 103 extends into the sliding groove 100 through the clearance opening. When the trigger module detects that the current at the power output terminal is less than the set value, the control module controls the drive motor 6 to rotate. When the drive motor 6 rotates, the sliding seat 8 moves backward in sync. The first latch 81 on the sliding seat 8 disengages from the second latch 103 on the sliding block 101. At the same time, several first elastic bodies 102 reset, pushing the housing 1 to move backward, and the plug pin 2 moves away from the electrode plate 300. At this time, the control board is in a power-off state. Under the reset force of the second elastic body 82, the sliding seat 8 resets to its initial state. When the user returns, the housing 1 is pushed down until the first latch 81 and the second latch 103 engage and lock with each other, and the plug pin 2 abuts against the electrode plate 300 and forms a power supply state.

[0041] Example 2

[0042] like Figure 9 and Figure 17 As shown, a charging device that automatically unplugs after being fully charged includes a housing 1. The housing 1 has a plug 2 for connecting to a power outlet and a power output terminal 3 for connecting a charging cable. The power output terminal 3 can be a charging cable with a connector or a charging socket, such as a TP-YE-C socket. The power output terminal 3 connects the charging cable to the device being charged, which includes, but is not limited to, mobile phones, iPads, and smartwatches. A drive mechanism and a control board 9 are housed within the housing 1. The drive mechanism, plug 2, and power output terminal 3 are all electrically connected to the control board 9. The control board 9 includes a control module, a charging module, a trigger module, and corresponding drive circuits. The trigger module can be configured as a current detection module, a timing module, or an infrared remote control receiver module, etc. The core of the control module uses an 8-bit microcontroller chip, which can be any one of STM8S003F3P6, STC89C52RC, or PIC12F675. The trigger module has an ACS712 Hall sensor / INA219 current monitoring chip. The charging module includes a rectifier unit, a filter unit, and a voltage regulator unit. The rectifier unit converts AC mains power into DC mains power. The filter unit filters out voltage ripple. The voltage regulator unit outputs a stable DC voltage to the power output terminal. The voltage regulator unit includes a charging management chip and peripheral circuitry. In this embodiment, the trigger module is set as a current detection module. The current detection module detects the real-time charging current at the power output terminal 3 or the power input terminal. When the charging current is less than or equal to the current threshold set in the control module, the control module controls the drive mechanism through the drive circuit to perform a separation action, causing the plug pin 2 to disconnect from the AC mains socket. In this way, by setting up a drive mechanism and a trigger module, when the device being charged is fully charged, the trigger module sends out a trigger control command. The control module then uses the trigger control command to control the drive mechanism to pull out the entire charging device, so that the device being charged is physically disconnected from the charging power supply to avoid overcharging and reduce battery damage. At the same time, it also prevents the electronic components on the circuit board inside the charging device from being powered on for a long time, which can accelerate aging or even cause overheating and safety hazards.

[0043] In this embodiment, the drive mechanism includes a telescopic motor 4 and a push rod 5 fixedly connected to the power output terminal of the telescopic motor 4. The housing 1 is provided with a through hole for the push rod 5 to enter and exit. When the control module controls the drive mechanism to perform a separation action, the telescopic motor 4 drives the push rod 5 to extend out of the housing 1 and press against the mains socket, causing the plug pin 2 to disengage from the mains socket. When the drive mechanism is in the initial state, the push rod 5 is hidden in the housing 1.

[0044] Example 3

[0045] like Figure 10 As shown, the main difference between this embodiment and Embodiment 2 lies in the driving mechanism. In this embodiment, the driving mechanism includes a drive motor 6, a drive gear 7, and a push rod 5. The drive gear 7 is fixedly connected to the power output terminal of the drive motor 6. The push rod 5 has a rack portion 51 and a push rod portion 52. The rack portion 51 is meshed with the drive gear 7. The push rod 5 is slidably disposed in the housing 1. The housing 1 has a through hole for the push rod portion 52 to enter and exit. When the control module controls the driving mechanism to perform a separation action, the drive motor 6 drives the drive gear 7 to rotate, and the drive gear 7 drives the rack portion 51 to move linearly, causing the push rod portion 52 to extend out of the housing 1 and press against the mains socket, causing the plug pin 2 to disengage from the mains socket. In the initial state, the push rod portion 52 of the push rod 5 is hidden in the housing 1.

[0046] Example 4

[0047] like Figure 11 As shown, the main difference between this embodiment and Embodiment 2 lies in the driving mechanism. In this embodiment, the driving mechanism includes a telescopic motor 4 and a connector 8 fixedly connected to the power output terminal of the telescopic motor 4. The plug pin 2 is fixedly connected to the connector 8, and the housing 1 has a through hole for the plug pin 2 to enter and exit. The housing 1 has a sliding cavity adapted to the connector 8, and the connector 8 is slidably disposed in the sliding cavity. The length direction of the sliding cavity is the same as the length direction of the plug pin 2. When the control module controls the driving mechanism to perform a separation action, the telescopic motor 4 drives the connector 8 and the plug pin 2 to retract. At this time, the housing 1 abuts against the mains socket, thus allowing the plug pin 2 to disengage from the mains socket.

[0048] Example 5

[0049] like Figure 12 As shown, the main difference between this embodiment and Embodiment 2 lies in the driving mechanism. In this embodiment, the driving mechanism includes a telescopic motor 4 and a base 10 fixedly connected to the power output terminal of the telescopic motor 4. A conductive post 11 is provided on the base 10, and the conductive post 11 is electrically connected to the control board 9. A fixed seat 12 is provided in the housing 1, and the plug pin 2 is provided on the fixed seat 12. The fixed seat 12 is provided with a conductive hole 13 connected to the plug pin 2, and the conductive hole 13 is inserted into the conductive post 11. When the control module controls the driving mechanism to perform a separation action, the telescopic motor 4 drives the base 10 and the conductive post 11 to retract, causing the conductive post 11 to disengage from the conductive hole 13, cutting off the electrical connection between the plug pin 2 and the control board 9, and realizing physical power disconnection.

[0050] Furthermore, in this embodiment, a reset button 14 is provided on the housing 1, and a power supply battery is provided inside the housing 1. The power supply battery is electrically connected to the reset button 14 and the control board 9. The reset button 14 is electrically connected to the control board 9. When the reset button 14 is pressed, the control module controls the telescopic motor 4 to run in reverse, causing the base 10 and the conductive post 11 to extend, so that the conductive post 11 is re-inserted into the conductive hole 13, restoring the electrical connection between the plug pin 2 and the control board 9.

[0051] Example 6

[0052] like Figure 13 and Figure 14 As shown, the main difference between this embodiment and Embodiment 2 lies in the driving mechanism. In this embodiment, the driving mechanism includes a telescopic motor 4 and a sliding seat 15 fixedly connected to the power output terminal of the telescopic motor 4. A fixed guide seat 16 is provided on the housing 1. The fixed guide seat 16 has a rectangular structure, and the plug pin 2 is disposed on the fixed guide seat 16. The housing 1 has a through hole for the sliding seat 15 to enter and exit. The fixed guide seat 16 is part of the hole wall of the through hole. The sliding seat 15 has a U-shaped structure and does not completely cover the fixed guide seat 16. When the control module controls the driving mechanism to perform a separation action, the telescopic motor 4 drives the fixed guide seat 16 to extend out of the housing 1 and press against the mains socket, causing the plug pin 2 to disengage from the mains socket.

[0053] In addition, the fixed guide seat 16 can also be an elliptical or circular structure, and the sliding seat 15 is an open annular structure surrounding the fixed guide seat 16. The electrical connection wire between the plug pin 2 and the control board 9 passes through the open opening and is connected to the control board 9.

[0054] Example 7

[0055] like Figure 15As shown, the main difference between this embodiment and embodiment 2 is that this embodiment also includes a prompting module 21. The prompting module is located inside the housing 1 and is electrically connected to the control module. The prompting module includes a buzzer and an LED light. When the triggering module detects that the charging current is less than or equal to a set value, the control module controls the prompting module to emit a prompting signal, which is a beeping sound from the buzzer and a flashing light from the LED light. A light hole is provided on the housing 1 corresponding to the position of the LED light, and a transparent cover plate 22 is provided at the light hole, allowing the flashing light from the LED light to be projected through the transparent cover plate 22. Furthermore, an enable button 17 is provided on the housing 1, which is electrically connected to the control board 9. The enable button 17 is used to turn the working state of the prompting module 21 on or off.

[0056] Example 8

[0057] like Figure 16 As shown, the main difference between this embodiment and Embodiment 2 is that this embodiment also includes a rubber sleeve 18 and a suction cup 20. The rubber sleeve 18 includes four corner portions and rubber strip portions for connecting adjacent corner portions. The corner portions wrap around the four corners of the housing 1 and protrude from the corner surfaces of the housing 1, effectively protecting the housing 1. A connecting rope 19 is provided on the housing 1, and the other end of the connecting rope 19 is connected to the suction cup 20. The suction cup 20 can be fixed to smooth surfaces such as desktops and power outlets, improving stability and safety during use.

[0058] In summary, by setting up a drive mechanism and a trigger module, when the charged device is fully charged, the charging current at the power output terminal 3 will be less than or equal to the set threshold in the control module and detected by the trigger module. The control module then controls the drive mechanism to separate the input power and pull out the entire charging device, so that the charged device is physically disconnected from the charging power supply, avoiding overcharging of the charged device and reducing battery damage. At the same time, it can also prevent the electronic components on the circuit board inside the charging device from being powered for a long time, which can accelerate aging or even cause overheating and safety hazards.

[0059] The present invention includes a prompting module including a buzzer. When the charging current at the power output terminal 3 is less than the set threshold in the control module, the control board controls the buzzer to emit a prompting sound to alert the user. The prompting sound can be turned on and off according to the usage environment.

[0060] Furthermore, this invention operates independently without needing to communicate with the device being charged to obtain its real-time power information, making it more convenient and cost-effective to manufacture, thus facilitating widespread adoption.

[0061] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A physical power-off mechanism after full charging, characterized in that, include; The housing has a plug and pins for connecting to a mains power outlet and a power output terminal. A drive mechanism and a control board are housed within the housing. The drive mechanism, plug and pins, and power output terminal are all electrically connected to the control board. The control board includes a control module, a charging module, and a trigger module. The trigger module is used to trigger control commands. Based on the trigger control commands fed back from the trigger module, the control module controls the drive mechanism to perform a separation action, completely disconnecting the mains power supply to the control board.

2. The physical power-off mechanism after full charging according to claim 1, characterized in that, The triggering module is configured as a current detection module, a timing module, or an infrared remote control receiver module.

3. The physical power-off mechanism after full charging according to claim 2, characterized in that, The driving mechanism includes a drive motor, a drive gear and a sliding seat fixedly connected to the output end of the drive motor. The sliding seat has a stroke groove, and a rack is provided on the side wall of the stroke groove. The drive gear meshes with the rack and the two are linked. When the drive motor rotates clockwise or counterclockwise, the drive gear moves the sliding seat back and forth. The front end of the sliding seat is provided with a first buckle.

4. The physical power-off mechanism after full charging according to claim 3, characterized in that, The front end of the housing is provided with a sliding groove, and a sliding block and several first elastic bodies are movably arranged in the sliding groove. The several first elastic bodies are located behind the sliding block. The plug pin is fixedly arranged on the sliding block, and the tail end of the plug pin extends through the sliding block into the housing. A second buckle is provided on the sliding block or at the inner end of the plug pin and at a position corresponding to the first buckle. When the sliding block is in the initial state, the sliding block is hidden in the sliding groove, and the first buckle and the second buckle are locked together. At the same time, the several first elastic bodies are all in a compressed state.

5. The physical power-off mechanism after full charging according to claim 4, characterized in that, The control board is provided with at least two sets of electrode plates spaced apart. Each electrode plate corresponds to one of the plug pins. When the sliding block is in the initial state, the inner end of the plug pin and the electrode plate abut against each other to form a power supply state.

6. The physical power-off mechanism after full charging according to claim 5, characterized in that, A second elastic body is provided at one end of the sliding seat. The second elastic body abuts against the sliding seat and is disposed opposite to the first buckle. The second elastic body is used for the movement and reset of the sliding seat. When the trigger module receives a trigger control command according to a preset or preset command, the control module controls the drive motor to rotate. When the drive motor rotates, the sliding seat moves backward in sync with the drive motor. The first latch on the sliding seat disengages from the second latch on the sliding block. At the same time, several first elastic bodies reset, pushing the housing to move backward and moving the plug pins away from the electrode plates. At this time, the control board is in a power-off state. Under the reset force of the second elastic body, the sliding seat resets to its initial state. When the user returns, push the housing downwards until the first and second latches engage and lock together, synchronizing the plug pins with the electrode plates and establishing a power supply state.

7. The physical power-off mechanism after full charging according to claim 6, characterized in that, The drive mechanism includes a telescopic motor and a base fixedly connected to the power output terminal of the telescopic motor. A conductive post is provided on the base, and the conductive post is electrically connected to the control board. A fixed seat is provided in the housing, and the plug pin is mounted on the fixed seat. The fixed seat has conductive holes connected to the plug pin, and the conductive holes are engaged with the conductive post. When the control module controls the drive mechanism to perform a separation action, the telescopic motor drives the base and conductive post to retract, causing the conductive post to disengage from the conductive hole, cutting off the electrical connection between the plug pin and the control board, thus achieving a physical power cut-off.

8. The physical power-off mechanism after full charging according to claim 7, characterized in that, The housing is equipped with a reset button, which is electrically connected to the control board. When the reset button is pressed, the control module controls the telescopic motor to run in reverse, causing the base and conductive post to extend, so that the conductive post can be re-inserted into the conductive hole, restoring the electrical connection between the plug pin and the control board.

9. The physical power-off mechanism after full charging according to claim 8, characterized in that, The housing contains a power supply battery, which is electrically connected to the reset button and the control board.

10. The charging device that automatically disconnects after being fully charged according to any one of claims 1-9, characterized in that, The charging module includes a rectifier unit, a filter unit, and a voltage regulator unit. The rectifier unit is used to convert AC mains power into DC power, the filter unit is used to filter out voltage ripple, and the voltage regulator unit is used to output a stable DC voltage to the power output terminal.

11. A charging device that automatically disconnects after being fully charged, characterized in that, include; The housing has a plug and pins for connecting to a mains power outlet and a power output terminal. The housing contains a drive mechanism and a control board. The drive mechanism, plug and pins, and power output terminal are all electrically connected to the control board. The control board has a control module, a charging module, and a trigger module. The trigger module is used to trigger control commands. The control module controls the drive mechanism to perform a separation action based on the trigger control commands fed back by the trigger module, so that the plug and pins are disconnected from the mains power outlet.

12. The physical power-off mechanism after full charging according to claim 11, characterized in that, The triggering module is configured as a current detection module, a timing module, or an infrared remote control receiver module.

13. The charging device that automatically disconnects after being fully charged according to claim 12, characterized in that, The drive mechanism includes a telescopic motor and a push rod fixedly connected to the power output end of the telescopic motor. The housing is provided with a through hole for the push rod to enter and exit. When the control module controls the drive mechanism to perform a separation action, the telescopic motor drives the push rod to extend out of the housing and press against the mains socket, causing the plug pins to disengage from the mains socket.

14. The charging device that automatically disconnects after being fully charged according to claim 13, characterized in that, The drive mechanism includes a drive motor, a drive gear, and a push rod. The drive gear is fixedly connected to the power output terminal of the drive motor. The push rod has a rack portion and a push rod portion. The rack portion is meshed with the drive gear. The push rod is slidably disposed in the housing. The housing is provided with a through hole for the push rod portion to enter and exit. When the control module controls the drive mechanism to perform a separation action, the drive motor drives the drive gear to rotate, and the drive gear drives the rack portion to move linearly, causing the push rod portion to extend out of the housing and press against the mains socket, thus disengaging the plug from the mains socket.

15. The charging device that automatically disconnects after being fully charged according to claim 14, characterized in that, The drive mechanism includes a telescopic motor and a connector fixedly connected to the power output end of the telescopic motor. The plug pins are fixedly connected to the connector, and the housing is provided with through holes for the plug pins to enter and exit. When the control module controls the drive mechanism to perform a separation action, the telescopic motor drives the plug pins on the connector to retract, causing the plug pins to disengage from the mains socket.

16. The charging device that automatically disconnects after being fully charged according to claim 15, characterized in that, The housing is provided with a sliding cavity adapted to the connector, and the connector is slidably disposed in the sliding cavity. The length direction of the sliding cavity is the same as the length direction of the plug pin.

17. The charging device that automatically disconnects after being fully charged according to claim 16, characterized in that, The drive mechanism includes a telescopic motor and a sliding seat fixedly connected to the power output end of the telescopic motor. A fixed guide seat is provided on the housing, and the plug pins are disposed on the fixed guide seat. A through hole is provided on the housing for the sliding seat to enter and exit, and the fixed guide seat is part of the hole wall of the through hole. When the control module controls the drive mechanism to perform a separation action, the telescopic motor drives the fixed guide seat to extend out of the housing and press against the mains socket, so that the plug pins are disengaged from the mains socket.

18. The charging device that automatically disconnects after being fully charged according to claim 17, characterized in that, The fixed guide seat has a rectangular structure, and the sliding seat has a U-shaped structure.

19. The charging device that automatically disconnects after being fully charged according to claim 18, characterized in that, The fixed guide seat is a rectangular, elliptical, or circular structure, and the sliding seat is an open annular structure surrounding the fixed guide seat. The electrical connection wire between the plug pin and the control board passes through the open opening and connects to the control board.

Images