JPS6210309Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a device for controlling the opening and closing of elevator doors.

In automobile elevators, large cargo elevators, etc., upper and lower doors that open and close in the vertical direction are often used, and some car doors and landing doors are each driven by separate electric motors. This is shown in FIG.

That is, a car door 2 that moves in the vertical direction is provided at the entrance/exit of the car 1, and this car door 2 is connected to the car 1.
It is driven by an electric motor (not shown) provided in the. In addition, a landing door 4 that moves in the vertical direction is also provided at the landing entrance of each floor 3, and this landing door 4
is driven by an electric motor (not shown) provided in the hall. When the car 1 arrives at the floor 3, both of the electric motors are driven simultaneously, and the car door 2 and the landing door 4 both move upward and open to the position shown by the chain line. The same applies when closing, and the car door 2 and the landing door 4 move together to close the entrance/exit.

On the other hand, if a power outage occurs while car 1 is operating, car 1
immediately stops, and the passengers are trapped inside car 1. To prevent this, a rescue operation is performed using an emergency power source such as a storage battery. In this case, if car door 2 and landing door 4 are opened after car 1 has run to a nearby floor or a designated floor, car door 2 and landing door 4 are fully opened in order to reduce the capacity of the emergency power source. It is done to open a little without. However, if both doors 2 and 4 are opened and closed at the same time, even if they are opened slightly, the starting currents of both motors will overlap, so the capacity of the emergency power source will not be reduced.

This invention improves the above-mentioned problems, and includes an elevator door control device that can reduce the capacity of the emergency power supply by starting one of the car door and the landing door before the other during a power outage. The purpose is to provide.

An embodiment in which this invention is applied to the first floor of a two-story elevator will be described below with reference to FIGS. 1 and 2.

In Figure 2, P and N are DC power supplies during normal operation, (+),
(-) is an emergency DC power supply, 6 is a power failure detection relay, 6a to 6d are normally open contacts, 6e and 6f are normally closed contacts, 7 is a car door fully open detection contact that opens when car door 2 is fully opened, 8 is a car door fully closed detection contact that opens when the car door is fully closed; 9-1 and 9-2 are landing door fully open detection contacts that open when the landing doors 4 on the first and second floors are fully opened, respectively; 10-1 and 10- 2 is a landing door fully closed detection contact that closes when the landing doors 4 on the first and second floors are fully closed and locked, and 11 is a car door electric motor (not shown) that connects the car door to the car door 2 when energized. 1 is a car door opening relay that drives in the direction of opening.
1a is its normally closed contact; 12 is a landing door opening relay that, when energized, drives a landing door electric motor (not shown) in the direction in which the landing door 4 opens; 12a is its normally closed contact; 13, when energized; 13a is a normally closed contact of the car door closing relay that drives the car door motor in the door closing direction, and 14 is a landing door closing relay that drives the landing door motor in the door closing direction when energized. So, 1
4a is the normally closed contact, 15 is the landing door fully open detection relay, 15a is the normally closed contact, 15b is also the normally open contact, 16 is the landing door fully closed detection relay, 16a
is its normally open contact, 16b is its normally closed contact, and 17
a is a normally closed contact of a door control relay (not shown) which is energized when a door close command is issued and deenergized when a door open command is issued, 17b is also a normally open contact, and 18 is a door in which car 1 is on floor 3. This is a door-openable section detection relay contact that closes when the door is in the openable section.

Next, the operation of this embodiment will be explained.

When the normal power supplies P and N are active, the power failure detection relay 6 is energized and the contacts 6a to 6d are closed.
Contacts 6e and 6f are open.

Now, car 1 is stopped on the first floor, car door 2,
Assuming that all the landing doors 4 on the first and second floors are closed, the door-openable section detection relay contact 18 is closed. Further, the car door fully open detection contact 7 is closed. Furthermore, landing door fully open detection contacts 9-1, 9-
2 is closed, the landing door fully open detection relay 15 is energized, the contact 15a is open, and the contact 15b is closed.

Here, when the door opening command is issued, the door control relay is deenergized and the contact 17a is closed, so P-6c-
7-6a-13a-11-17a-18-6d-
The car door opening relay 11 is energized by the N circuit. At the same time, P-6c-15b-14a-12-
The landing door opening relay 12 is energized by the circuit 17a-18-6d-N. Now, the car door motor and the landing door motor are driven by a well-known circuit, and the car door 2 and the landing door 4 on the first floor begin to open. When the car door 2 is fully opened, the contact 7 is opened, so the car door opening relay 11 is deenergized, the car door motor is stopped, and the car door 2 is also stopped. When the landing door 4 is fully opened, the contact 9-1 is opened, so the landing door fully open detection relay 15 is deenergized, the contact 15a is closed, and the contact 15b is opened. By opening the contact 15b, the landing door opening relay 12 is deenergized, the landing door electric motor is stopped, and the landing door 4 is also stopped.

Next, when a door closing command is issued, the door control relay is energized, contacts 17a open and contacts 17b closed. At this time, the car door fully closed detection contact 8 is closed. In addition, landing door fully closed detection contacts 10-1, 10
-2 is open, the landing door fully closed detection relay 16 is deenergized, the contact 16a is open, and the contact 16b is closed. Now, P-6c-8-6b-11a-
The car door closing relay 13 is energized by the circuit 13-17b-6d-N. At the same time, P-16b-
By the circuit 12a-14-17b-6d-N,
The landing door closing relay 14 is energized. Now, the car door electric motor and the landing door electric motor are driven, and the car door 2 and the landing door 4 begin to close. When the car door 2 is fully closed, the contact 8 is opened, so the car door closing relay 13 is deenergized and the car door 2 is stopped. When the landing door 4 is fully closed and locked, the contact 10-1 is opened, so the landing door fully closed detection relay 16 is energized, the contact 16a is closed, and the contact 16b is opened. By opening contact 16b, landing door closing relay 1
4 is deenergized and the landing door 4 stops.

Next, when the normal power supplies P and N are out of power, the power outage detection relay 6 is deenergized and the contacts 6a to 6d are opened.
Contacts 6e and 6f are closed.

Assume that car 1 is on the first floor and a command to open the door is issued. At this time, both contacts 15b and 6a are open, so (+)-6e-15b-14a-12-17a
-18-6f-(-) circuit energizes the landing door opening relay 12, and first the landing door 4 opens. When the landing door 4 is fully opened, the contact 9-1 is opened, the landing door fully open detection relay 15 is deenergized, and the contact 15b is opened and the landing door opening relay 12 is deenergized. Also,
Since contact 15a is closed, (+)-6e-7-1
5a-13a-11-17a-18-6f-
The car door opening relay 11 is energized by the (-) circuit, and the car door 2 begins to open. When the car door 2 is fully opened, the contact 7 is opened and the car door opening relay 11 is deenergized.

The same applies when a door closing command is issued, and after the landing door 4 closes, the car door 2 begins to close. Since its operation can be easily understood from the above explanation, the details will be omitted.

In this way, the car door motor starts after the landing door 4 is fully opened, so the starting currents of both motors do not overlap, making it possible to reduce the capacity of the emergency power supplies (+) and (-). It is possible.

Also, you do not have to wait until the landing door 4 is fully opened.
Even if you start the car door motor when the landing door motor has finished starting, the starting currents of both motors will not overlap, so the emergency power supply (+), (-)
Helps reduce capacity.

In the embodiment, the car door 2 is driven after the landing door 4 is fully opened, but this order may be reversed and the landing door 4 is driven after the car door 2 is fully opened. .

As explained above, in this invention, the elevator car door is driven by a car door electric motor, and the landing door is driven by a landing door electric motor, and in the event of a power outage, the car door and the landing door are activated after the other one is started. Since the starting currents of both motors do not overlap, the capacity of the emergency power supply can be reduced.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view of the elevator car and landing area;
FIG. 2 is a circuit diagram showing an embodiment of the elevator door control device according to this invention. 1... Elevator car, 2... Car door, 4...
... Landing door, 6 ... Power failure detection relay, 7 ... Car door fully open detection contact, 8 ... Car door fully closed detection contact, 9-
1, 9-2... 1st and 2nd floor landing door fully open detection contacts, 10-1, 10-2... Left landing door fully closed detection contacts, 11... Car door open relay, 12... Landing door open Relay, 13... Car door closed relay, 14... Landing door closed relay, 15... Landing door fully open detection relay,
16... Landing door fully closed detection relay, 17a, 17b
...Door control relay contact, 18...Door-openable section detection relay contact.

Claims (1)

[Scope of utility model registration request] A car door electric motor that drives the car door and a landing door electric motor that drives the landing door are provided, and when the car is on the floor and a door open command or door close command is issued, the car door motor and the landing door motor A power outage detection device that operates when a power outage is detected, an emergency power source that supplies power during a power outage, and a power outage detection device that operates after the power outage detection device operates. An elevator door characterized by comprising a drive circuit for starting one of the car door motor and the landing door motor after completion of starting the other by the emergency power source when the door opening command or the door closing command is issued. control device.