The introduction of DC charging pile cooling system interface and...
The paper introduces the core components of electronic locking mechanism of gun muzzle of DC charging pile
The electronic locking mechanism of the gun muzzle of the DC charging pile is a security measure to ensure the stable connection between the charging gun and the vehicle charging port during the charging process. The following is a detailed introduction of its working principle and characteristics:
Main component
Electronic lock composition
The electronic locking mechanism of the gun muzzle of the DC charging pile usually includes electronic lock shell, mechanical lock lock, motor, motor O-ring, mechanical lock microswitch and position detection microswitch and other components. These components work together to achieve the locking and unlocking function of the electronic lock.
Working principle
The electronic locking mechanism realizes locking and unlocking by means of motor drive. As a position signal feedback device, the microswitch is connected to the external control circuit through a specific pin to realize the locking, unlocking and signal feedback of the electronic lock. The electronic lock uses a motor drive chip and a number of drive diodes to form an electronic lock drive circuit to realize the control of the electronic lock.
Lock function
After the charging gun is inserted into the socket, the electronic lock ensures that charging begins. If the gun is not in place, the electronic lock cannot be locked, and the system cannot detect the lock signal, so it cannot be charged. This ensures that the charging process can only begin when the charging gun is properly connected.
Connection reliability
The electronic lock can ensure that the charging gun is reliably connected to the socket in use, and will not be removed from the socket due to misoperation, so as to avoid possible safety accidents.
Charge guarantee
The electronic lock can take out the charging gun from the socket after the payment is completed, so as to ensure that the charging gun can effectively charge and avoid the occurrence of non-payment.
Electronic lock type
DC charging gun electronic lock generally has two kinds of structure: electromagnetic structure and motor motor structure. The electromagnetic structure relies on the force generated by electromagnetic to move in a straight line and control the switch action of the electromagnetic lock; Motor Motor structure depends on the power to the motor, the central shaft generates a rotation Angle to drive the mechanism to produce action, to achieve the function of locking and unlocking.
Control circuit
electronic lock control circuit includes an instruction unit, a drive unit and an emergency power supply unit. The output end of the drive unit is connected to the electronic lock, which is used to drive the unlocking and locking of the electronic lock. The input end of the command unit is connected to the external power supply unit, and the output end is connected to the input end of the drive unit, which is used to issue unlocking and locking instructions.
Emergency power supply
The emergency power supply unit is used to accept and store the electric energy from the external power supply unit, and supply power to the drive unit to ensure that the unlocking command can be output when the external power supply unit loses power, and solve the technical problem that it is difficult to unlock the charging pile after the loss of power.
Signal feedback
the electronic lock provides a feedback signal after locking, and the charging pile recognizes that the feedback signal is considered to be the realization of the lock, which is defined as the completion of the physical connection
Safety
The electronic lock mechanism improves the safety of electric vehicle charging, the device assembly process is simple, improves the overall assembly efficiency of the charging gun, and improves the service life of the electronic lock device.
Through the above mechanism, the DC charging pile muzzle electronic locking mechanism ensures the stability and safety of the charging process, and also improves the convenience and reliability of charging.
DC CHARGING PIlE SERIES
DC charging pile is an efficient charging facility for electric vehicles, which uses direct current (DC) to directly charge the vehicle battery, significantly reducing the charging time. Compared with traditional AC charging piles, DC charging piles are able to provide higher power output and can usually charge an EV to 80% of its capacity in 30 minutes, providing users with a convenient charging experience.
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