-
FUJI ELEVATOR
-
FUJI ELEVATORIn the way of multi-screen web design,
Fuji elevator
Republic of China Patent Certificate Invention No. M1657654
Anti-burst protection device for elevator permanent magnet synchronous motor.
When the elevator is in automatic operation and the motor decelerates to stop and open the door, if the brake that relies on the brake motor fails, the star-closing circuit is delayed by 1 to 2 seconds, the car may have moved 3 to 9 meters quickly, and it is difficult to guarantee the elevator. No personnel accidents occur.
Moreover, the life of the capacitor is aging year by year due to the influence of time and ambient temperature, and the quality is difficult to ensure.
In order to overcome the above technical defects in the industry, the company invested in R & D and improvement to replace traditional power resistors with NTC resistors.
Because the resistance value of NTC at normal temperature is large, the instantaneous high current at the time of star star short circuit is suppressed at high speed of the synchronous motor, and the NTC becomes extremely low resistance after heating, so that the synchronous motor has a large braking torque when stopped , Reduce the speed of elevator sliding, greatly improve the comfort and safety of passengers. 。
Republic of China Patent Certificate Invention No. M561081
Clamp protection device for accidental movement of carriage UCMP
Unintended Car Movement Protection (UCMP), derived from the European amendment EN81-1: 1998 A3 amendment: when the elevator is in the leveling position and the door is open, if the elevator moves unexpectedly, UCMP safety Immediately start protection and stop elevator operation, adding a safety guarantee for passengers.
UCMP is aimed at motors and control systems, and can be divided into detection devices, control circuits, and brake components.
For detailed regulations and explanatory documents, please contact the company's business staff for request.
Republic of China Patent Certificate Invention No. M564035
Low-noise elevator brake control device.
The main noise sources of the elevator are the hoist motor, reduction gear, electromagnetic brake of the brake motor and electromagnetic contactor that controls the power of the motor in the machine room. The advantages of this product are as follows:
(1) Apply silicon controlled gate fluid and time control circuit to control voltage.
(2) The action of the brake after the power is turned off is gentle, which reduces the collision sound of the brake pad and the brake drum.
(3) The relay is a hermetic package type, and the contact is not easily oxidized with time. Because it is used for zero-point voltage control, there is no current when the contact is opened and closed, so there is no spark, and the contact life is long,
It is explosion-proof and prevents electromagnetic interference to surrounding electronic products. 。
(4) The power supply end has slow blow fuses, noise filter capacitors, lightning surge protector and rectifier.
(5) With over-current short-circuit protection circuit, the output is automatically cut off when the instantaneous current exceeds, to avoid contact adhesion and damage of electronic parts.
(6) With output feedback detection circuit, the elevator control system can be notified by the feedback signal to make the product more safe.
(7)The operating voltage of the special control terminal can prevent the coil from being burned or the contactor iron core to vibrate, buzz, bounce and spark when the voltage is wrong or the frequency is unstable.
(8)The primary power supply at the control end adopts RC resistor-capacitor step-down circuit and has lightning strike protector and resettable fuse. The RC step-down circuit is simple and reliable, and can withstand the frequent start-up operation of the elevator.
(9)The circuit board of the elevator machine room is coated with insulating paint for dustproof and moisture-proof treatment, and then applied with a metal cover for protection. The average life can reach more than several times of the general components in the industry.
Republic of China Patent Certificate Invention No. M578325
- Anti-scratch door frame
- ● Patented door frame prevents scratches on the makeup steel plate when carrying heavy objects
- ● Please contact the sales staff for the location of HB operation panel.
- ● Matching type (optional)
