CN208790972U - A kind of accidental movement of elevator cage protection system improvement circuit - Google Patents

Abstract

The utility model discloses a kind of accidental movement of elevator cage protection system improvement circuit, including UCMP backup power source, the DC24V power input UCMP backup power source, the outer UCMP switch of the contact EL+ serial door of UCMP backup power source, inside door UCMP switch, resistance to movement electromagnet is connected on contact EL-, it is characterized by: having contact 8 between the contact EL+ and outdoors UCMP switch, there is contact 6 between the inside door UCMP switch and resistance to movement electromagnet, there is contact 5 between the resistance to movement electromagnet and contact EL-, power-off delay relay 1 in parallel between the contact 6 and contact 8, power-off delay relay 2, diode D is connected between the contact 5 and contact 6.By the setting of power-off delay relay 1, power-off delay relay 2, it elevator inside door and outer gate delay can close the door when power is off, keep elevator carriage safer, the interference that furthermore diode D can prevent electromagnetic actuation and generate when disconnecting causes to malfunction.

Description

A kind of accidental movement of elevator cage protection system improvement circuit

Technical field

The utility model relates to lift circuit field technology, refers in particular to a kind of accidental movement of elevator cage protection system and change Into circuit.

Background technique

Elevator is a kind of using motor as the vertical conveyor of power, be equipped with box-like gondola, for tier building multiply people or Carrying cargo.Transport facility of the elevator as vertical direction has become important build in skyscraper and public place Build equipment and indispensable.With the development of computer technology, automatic technology and power electronic technique, modem elevator at For typical electromechanical integrated product.With the raising of whole national economy strength, the life consumption level of the people rises appreciably, Real estate developer releases medium-to-high grade small high-rise and high-rise residential building energetically one after another, has driven increasing rapidly for residential lift, Main growth factor as entire elevator market.

Existing elevator control system in enabling leveling by detection switch gate signal, come by band-type brake contactor signal feedback Ensure that passenger passes in and out the personal safety of carriage.But there may be following hidden danger for the process: (1) when elevator switch gate signal is lost Effect, or due to improper operation, when switch gate signal is shorted, elevator is possible to run in the case where open door, harm is just In the personal safety of passenger.(2) due to elevator device malfunction and failure, make carriage abnormal running, such as mistakenly beat Open traction machine brake.Therefore it needs to configure accidental movement of elevator cage protective device on elevator control circuit (referred to as UCMP), however the circuit design of existing UCMP system is too simple, can malfunction because of interference voltage electric current.In addition to this, Do not have delay shutdown function when elevator faults, causes passenger to be locked in carriage, use is not safe and reliable enough.

Utility model content

In view of this, the utility model is in view of the existing deficiencies of the prior art, main purpose is to provide a kind of elevator car Compartment accidental movement protects system to improve circuit, elevator inside door and outer gate delay can close the door when power is off, make elevator carriage more For safety, the interference that furthermore can be prevented electromagnetic actuation and generate when disconnecting causes to malfunction, to overcome the prior art It is insufficient.

To achieve the above object, the utility model is using following technical solution:

A kind of accidental movement of elevator cage protection system improvement circuit, including UCMP backup power source, DC24V power input should UCMP backup power source, the outer UCMP switch of the contact EL+ serial door of UCMP backup power source, inside door UCMP switch, resistance to movement electromagnet It is connected on contact EL-, there is contact 8, the inside door UCMP switch and resistance to movement electricity between the contact EL+ and outdoors UCMP switch There is contact 6 between magnet, has contact 5 between the resistance to movement electromagnet and contact EL-, it is in parallel disconnected between the contact 6 and contact 8 Electric time-delay relay 1, power-off delay relay 2 connect diode D between the contact 5 and contact 6.

As a preferred embodiment, the power-off delay relay 1 and power-off delay relay 2 are parallel to contact simultaneously 120 and contact 127, there are AC110V chain input voltages between contact 120 and contact 127.

As a preferred embodiment, the integrated mainboard that connects of contact 127 is standby corresponding to the UCMP in band-type brake contactor circuit With the contact BZ1 of power supply, contact 120 is connected on the contact M1 of integrated mainboard.

As a preferred embodiment, the product type of the UCMP backup power source is XL-UCMP-24B.

The utility model has clear advantage and beneficial effect compared with prior art, specifically, by above-mentioned technology Scheme is it is found that by increasing power-off delay relay 1, power-off delay relay 2, when lift car accident power-off, the power-off Time-delay relay 1 and power-off delay relay 2 can achieve delay cut-off effect, and accidental movement of elevator cage is made to protect system UCMP can smoothly be cut, and delay is closed the door.For example, the delay cut-off time of each power-off delay relay is 3 seconds, then can prolong Long 3 seconds lockups.Under normal circumstances, only one power-off delay relay participates in circuit, general electricity delay after Electric appliance 1 preferentially uses, and when power-off delay relay 1 damages, then power-off delay relay 2 replaces the function of power-off delay relay 1 Energy.The mode of this preparation and a use increases the safety and reliability of circuit.

In addition, resistance to movement electromagnetic actuation contact is all by coil, coil is an inductance, when it restores from attracting state When at off-state, since this process is a switching value, so coil can generate a higher voltage (self-induction), this Voltage may breakdown driven element or the very strong spike interference of formation one.It is reversed at coil in order to eliminate this influence One diode D of parallel connection, for absorbing the electric current of self-induction generation, to play a protective role.

For the structure feature and effect for more clearly illustrating the utility model, come with reference to the accompanying drawing with specific embodiment pair The utility model is described in detail.

Detailed description of the invention

Fig. 1 is the circuit diagram of traditional elevator carriage accidental movement protection system (UCMP).

Fig. 2 is the improvement circuit diagram of accidental movement of elevator cage protection system (UCMP) of the embodiment of the utility model.

Fig. 3 is the circuit of 2 parallel connection of power-off delay relay 1 and power-off delay relay of the embodiment of the utility model Figure.

Fig. 4 be in the chain circuit of door of the embodiment of the utility model contact 127 and contact 120 on integrated mainboard Wiring diagram.

Specific embodiment

Please refer to figs. 1 to 4, that show the specific structures of the preferred embodiment of the utility model, are a kind of Accidental movement of elevator cage protects system to improve circuit, including UCMP backup power source, the product type of the UCMP backup power source For XL-UCMP-24B.The DC24V power input UCMP backup power source, the outer UCMP of the contact EL+ serial door of UCMP backup power source are opened Pass, inside door UCMP switch, resistance to movement electromagnet are connected on contact EL-, have contact between the contact EL+ and outdoors UCMP switch 8, there is contact 6 between the inside door UCMP switch and resistance to movement electromagnet, is connect between the resistance to movement electromagnet and contact EL- Point 5, power-off delay relay 1, power-off delay relay 2 in parallel between the contact 6 and contact 8, between the contact 5 and contact 6 Connect diode D.

Wherein, the power-off delay relay 1 and power-off delay relay 2 are parallel to contact 120 and contact 127 simultaneously, There are AC110V chain input voltages between contact 120 and contact 127.The integrated mainboard that connects of contact 127 connects corresponding to band-type brake The contact BZ1 of UCMP backup power source in tentaculum circuit, contact 120 are connected on the contact M1 of integrated mainboard.

The working principle of accidental movement of elevator cage protection system (UCMP) circuit of the utility model is as follows: passing through increase Power-off delay relay 1, power-off delay relay 2, when lift car accident power-off, the power-off delay relay 1 and power-off Time-delay relay 2 can achieve delay cut-off effect, cuts accidental movement of elevator cage protection system UCMP smoothly, prolongs Shi Guanmen.For example, the delay cut-off time of each power-off delay relay is 3 seconds, then the lockup that can extend 3 seconds.Just In normal situation, only one power-off delay relay participates in circuit, and general electricity time-delay relay 1 preferentially uses, when disconnected Electric time-delay relay 1 damages, then power-off delay relay 2 replaces the function of power-off delay relay 1.The side of this preparation and a use Formula increases the safety and reliability of circuit.

In addition, resistance to movement electromagnetic actuation contact is all by coil, coil is an inductance, when it restores from attracting state When at off-state, since this process is a switching value, so coil can generate a higher voltage (self-induction), this Voltage may breakdown driven element or the very strong spike interference of formation one.It is reversed at coil in order to eliminate this influence One diode D of parallel connection, for absorbing the electric current of self-induction generation, to play a protective role.If removing diode, will cause Very strong interference, causing driving element to puncture or formed on entire circuit influences, and leads to malfunction etc..Especially in Miniature digital System, such as SCM system, on-off is primary, and system just resets once, has no idea to work normally at all.

The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model Any restrictions, therefore any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent change Change and modify, is still within the scope of the technical solutions of the present invention.

Claims (4)

1. a kind of accidental movement of elevator cage protection system improves circuit, including UCMP backup power source, DC24V power input should UCMP backup power source, the outer UCMP switch of the contact EL+ serial door of UCMP backup power source, inside door UCMP switch, resistance to movement electromagnet It is connected on contact EL-, it is characterised in that: have contact 8 between the contact EL+ and outdoors UCMP switch, the inside door UCMP is opened Closing has contact 6 between resistance to movement electromagnet, has contact 5 between the resistance to movement electromagnet and contact EL-, the contact 6 and connects Power-off delay relay 1, power-off delay relay 2 in parallel, connect diode D between point 8 between the contact 5 and contact 6.

2. a kind of accidental movement of elevator cage protection system according to claim 1 improves circuit, it is characterised in that: described Power-off delay relay 1 and power-off delay relay 2 are parallel to contact 120 and contact 127 simultaneously, contact 120 and contact 127 it Between have AC110V chain input voltages.

3. a kind of accidental movement of elevator cage protection system according to claim 2 improves circuit, it is characterised in that: contact 127 connect contact BZ1 of the integrated mainboard corresponding to the UCMP backup power source in band-type brake contactor circuit, and contact 120 is connected on The contact M1 of integrated mainboard.

4. a kind of accidental movement of elevator cage protection system according to claim 1 improves circuit, it is characterised in that: described The product type of UCMP backup power source is XL-UCMP-24B.