Analyze the structure and material of the locker and how to judge that the locker is broken

Locker structure

Analyze the structure and material of the locker and how to judge that the locker is broken

1, the base 2, the motor 3, the insert seat 4, the worm 5, the worm gear 6, the reset gear 7, the motor insert 8, the gear position 9, the rotating rod 10, the vibration damping block 11, the screw 12, the contact piece seat 13, Reset torsion spring

Material introduction of the lock

Motor

The main function of the locker motor: the motor is the power source, when the worm is pressed, the worm will follow the motor to drive the gear to rotate.

The main feature

1. The speed is high (both are around 10,000 revolutions per minute), so the product runs very fast, so vibration damping blocks are added for speed buffering.

2. The current is large (A), so the motors have built-in or external PTs. The main function is to protect the motor from being damaged when the temperature rises during operation.

Points to note during the process:

1. Motor model. Because each model of the motor is different, its characteristics are completely different. The consequence of using the wrong model of motor is that the output function of the product is completely different.

2. Prevent the motor shaft from bending and deforming and crushing the motor shaft with wrong tooling after pressing the worm.

3. Don't miss the tape. Because of the high impact of the super sound, the tape protects the motor.

Analyze the structure and material of the locker and how to judge that the locker is broken

Worm

The main function of the worm is: the relevant performance of the motor is transmitted to other gear trains through the worm.

Points to note in the process:

1. There must be no dirt on the worm, which may affect the noise.

2. The worm must not be deformed.

3. The worm must not be broken after the incoming material and the motor is pressed.

4. The entire height after pressing the worm must be controlled.

Analyze the structure and material of the locker and how to judge that the locker is broken

Reset torsion spring

All locks are required to return smoothly, and there is no abnormal noise during the return process.

This requirement is for the flexible response of the latch when the door is manually opened and the buffer function of the motor when the product is running.

The main function of the reset torsion spring is to drive the reset gear to automatically reset after the lock is in place, so that the manual force of the output shaft is reduced to a lower level.

Attention should be paid to the process of installing the reset torsion spring:

1. The reset torsion spring must be clamped in place.

2. After resetting, the pictures shall not be added together.

Analyze the structure and material of the locker and how to judge that the locker is broken

Reset gear

All reset gears of the locker directly or indirectly drive the output shaft to produce a certain torque and speed output.

Attention should be paid to the process of assembling the reset gear:

1. The position of the reset gear should not be misplaced when the cover is installed.

2. The relative position of the reset gear and the contact piece seat is correct.

Analyze the structure and material of the locker and how to judge that the locker is broken

Gear position piece and contact piece

The main function of the contact piece and the gear plate is: the contact piece runs between the gear plates to generate a signal feedback to the body controller for timing control, and the remote control unlock and lock commands are used to realize the opening and closing conversion function of the door.

Therefore, the shape and height of the contact piece is a key point in the control of incoming materials and production process. The deformation or the height of the contact piece will cause incorrect position feedback or poor contact, and the product function will be partially or completely invalid. On the contrary, if the height of the contact piece is too high, the service life of the contact piece will be reduced and the product function will be partially or completely invalid.

Upper and lower shell

The upper and lower shells of the locker are ultrasonically welded, mainly for waterproofing. Therefore, the upper and lower shells must be firm after ultrasonic welding without cracks.

Analyze the structure and material of the locker and how to judge that the locker is broken

The automobile central locking device is composed of a microcomputer system, a telescopic motor, and a connecting rod structure. If the door cannot be locked, the motor is usually broken. It may be that the locking screw of the motor and the connecting rod structure is loose. You can When you press the remote control, there is a motor working sound inside. If not, it should be that the motor is broken. If the lock block is broken, all the doors are insensitive, and the stopper is broken. There may be problems with only one or two doors.

USB Charger

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Product advantages:
1. Stylish, portable, practical and convenient home charger
2. 6-port USB emergency charger, which can be used safely for tablet computers and can charge 6 devices at the same time
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5. Chargers for MP3, MP4, GPS, PDA, e-books, mobile phones, digital cameras, tablets, etc.

Features
(1) Overcharge protection
(2) Over discharge protection
(3) Short circuit protection
(4) Voltage stabilization protection.
(5) Automatic identification of mobile phone current protection.

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1. Connect up to 6 USB devices at a time, and each device will receive a unique and tailor-made charge. The maximum output power of QC3.0 is 18W, which can optimize the charging of all devices.
2.2QC3.0+4 ports total 6 charging ports, which can charge 6 devices with a total power of 84W at the same time
3. With multiple protection safety systems, the product will automatically adjust the charging current according to the needs of the device being charged. Automatically detect and adjust the charging current to charge your device at the fastest speed.

One machine for multiple uses
The USB charger can charge 6 devices at the same time, and the smart recognition technology will detect and provide the best charging level for each of your devices.
The maximum output current of a single USB port is 2.4A. 2QC3.0 has 6 charging ports, which can charge 6 devices at the same time without causing shunting or reducing power. The USB charger can quickly charge your devices. Smartphones and tablets can receive up to 2.4 amps of current, so you can use the device as you like while charging.
Over-current, over-charge, and short-circuit protection will make charging safe, without any risk of overheating or damaging the device. Passed CE/FCC/ROSH/PSE/CCC certification. Through safety certification to ensure safe use.


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