[0001]The present invention is an elevator and its control device.
BACKGROUND
[0002]As a background art of this technical field, there is JP-A-2012-184043 (Patent Document 1). This publication, there the rope connecting the respective hoistway vertically movably provided the car and counterweight wound around the hoist, an elevator apparatus for raising and lowering the elevator car by the rotation of the hoist Te, elevator having the power supply to the motor of the hoisting machine is interrupted and a switch turned on, connecting a resistor to the power supply path through the switch, and a dynamic braking circuit to consume the electromotive force from the motor device is described. Further, in Japanese, by the operation of the rescue operation switch provided in the car, the car by opening the brake of the hoisting machine is moved by the offset load of the counterweight, during this movement, the dynamic brake controller monitors the rotational speed of the hoisting machine, configured to increase the value of the resistor is described by the resistor value switching circuit exceeds the speed at which the rotational speed is set in advance.
CITATION
Patent Document
[0003]
Patent Document 1: JP 2012-184043 JP
Summary of the Invention
Problems that the Invention is to Solve
[0004]
　However, the elevator apparatus described in Patent Document 1, for emergency stop of the empty run distance reduction, a case of utilizing the braking torque obtained by winding the hoisting machine motor by short-circuiting the three-phase, sufficient consideration has not been made.
[0005]
　That is, using a winding of the hoisting motor brake torque obtained by three-phase shorting, be used for emergency stop of the empty run distance reduced, because of the speed increasing prevention during the rescue operation by the brake release considering that the former is short-circuited automatically by the contactor contacts, the latter desirably so as to short-circuit manually by short-circuiting connector.
[0006]
　In this case, to take advantage of the braking torque to the latter, the maintenance staff to go to the control panel, it is necessary to connect the short-circuit connector manually. When installing the control panel in the vicinity of the hoistway lowest floor, the maintenance personnel enter the pit, to change the direct connector connection in the control panel arranged in the pit, it is possible to connect the short-circuit connector. On the other hand, when installing the control panel at the top of the hoistway, because the cage is difficult to access unless it control panel near the top floor, it is necessary to extend the connector connecting portion to the hole indicator box. However, when the wiring of the connector connecting portion is increased, the resistance value of the three-phase short circuit increases, there is a problem that the effect of the emergency stop of the braking torque is reduced.
[0007]
　An object of the present invention, while allowing the braking torque can make the most to decrease the resistance value of the circuit for short-circuiting the emergency stop, is to make it possible to facilitate operation at the time of brake release.
Means for Solving the Problems
[0008]
　In order to solve the above problems, an elevator control apparatus of the present invention, the elevator car braking torque obtained by winding of the hoisting machine motor which is connected via a control device to a three-phase AC power supply to three-phase shorting an elevator control apparatus for use in braking,
　comprising: a first short-circuit portion for generating the braking torque to emergency stop, and a second short-circuit portion for generating the braking torque at the time of the rescue operation by brake release as a separate circuit,
　the first two short-circuit unit, a three-phase winding short-circuit terminal unit for short-circuiting the three-phase windings of the hoist motor is arranged in the hole indicator box.
Effect of the invention
[0009]
　According to the present invention, while the braking torque by reducing the resistance value of the circuit for short-circuiting the emergency stop to be able to take full advantage of, can facilitate operation during brake release. Incidentally, problems other than those described above, and advantages will become apparent from the following description of embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010]
FIG. 1 is a circuit diagram showing a schematic configuration of an elevator control apparatus according to an embodiment of the present invention.
Is a [2] a block diagram showing a specific configuration of the manual short-circuit portion 7 shown in FIG.
It is a circuit diagram showing a brake opening circuit 11 shown in FIG. 3 FIG.
Is a diagram showing an embodiment of an elevator with an elevator control apparatus according to FIG. 4 the invention.
DESCRIPTION OF THE INVENTION
[0011]
　DETAILED DESCRIPTION OF THE PREFERRED embodiment of the present invention with reference to the drawings.
Example 1
[0012]
　Figure 4 is a diagram showing an embodiment of an elevator system having an elevator control apparatus according to the present invention. In the following description, the elevator control device 3 (see FIG. 1) simply called control unit.
[0013]
　Elevator system 100 includes a weight 104 balancing the elevator car 103 is formed in the building hoistway 101 are connected by a rope 106 wound around the sheave 102 of the hoisting machine 105, hoisting machine motor has a lift driven configuration to each other by rotation of the sheave 102 of the hoisting machine 105 by 1.
[0014]
　In this embodiment, the hoisting machine 105 and the control unit 3 which includes a hoisting machine motor 1 and sheave 102 and the control panel 8 of matches (see FIG. 1), the arrangement configurations at the top of the hoistway 101 shows. The top floor of the hall H, hole indicator box 9 is provided. Hall indicator box 9 provided on the top floor of the hall H can be operated from the floor F of the top floor of the hall H.
[0015]
　Figure 1 is a circuit diagram showing a schematic configuration of an elevator control apparatus according to an embodiment of the present invention.
[0016]
　In the following description, the case of using the braking torque obtained by winding of the hoisting motor 1 with three-phase shorting for emergency stop idling-run distance reduces as the operation (braking torque) of the "emergency stop" and a case of using a braking torque of the order of the speed increasing prevention during the rescue operation by the brake release as an operation of "braking open" (braking torque) to be distinguished.
[0017]
　An elevator apparatus 100 for applying a permanent magnet synchronous motor is performing power supply to the hoisting machine motor 1 through the control unit 3 from a three-phase AC power supply 2. For this, the control device 3 has an inverter INV. The control device 3 includes a control unit for controlling the energization of the closing and three-phase short-circuit-open contactor coil control transistor 19 for releasing brake operation switch 13 to be described later.
[0018]
　Automatic shorting portion 5 used to reduce the empty run distance emergency stop braking torque obtained by the motor windings are short-circuited three phase has a contactor contacts 4 to close automatically. Automatic short circuit portion 5 having the contactor contacts 4, together with the control unit 3, is arranged in the control panel 8.
[0019]
　In contrast, the manual short-circuit portion 7 using a braking torque obtained by the motor windings by three-phase shorting for accelerating prevention during the rescue operation by the brake open, short-circuited by the short-circuit connector 6 connected manually It is. Manual short-circuit portion 7 is disposed in the hole indicator box 9 provided on the top floor of the hall H.
[0020]
　Manual shorting terminal portion 7A of the manual short-circuit portion 7, a control unit 3 housed in the control panel 8, and is electrically connected by wire 7B. That is, the manual short-circuit portion 7 is constituted by a wiring 7B manual short terminal portion 7A. More holes indicator box 9, the short-circuit terminal portions 10A, 10B are arranged. Short-circuit terminal portions 10A, 10B is the brake release circuit 11 disposed in the control panel 8, it is electrically connected by a wiring 10E. Short-circuit terminal portion 10A, the 10B and the brake release circuit 11 will be described later in detail.
[0021]
　Short-circuit terminal portion 10A is a terminal portion to be short-circuited by the short-circuit connector 10C. Short-circuit terminal portions 10B is a terminal portion to be short-circuited by the short-circuit connector 10D. Shorting connector 10C, shorting connector 10D and the short connector 6 is formed integrally, short-circuit terminal unit 10A at one manual operation, a short circuit of the short-circuit terminal section 10B and a manual short-circuit portion 7 is configured to be executed .
[0022]
　Shorting connector 10C, shorting connector 10D and the short connector 6 is accommodated in the hole indicator box 9, it is stored.
[0023]
　Figure 2 is a block diagram showing a specific configuration of the manual short-circuit portion 7 shown in FIG.
[0024]
　Manual short-circuit portion 7 includes the configuration of the control panel 8, a configuration of the holes indicator box 9 for hall call registration and car position display provided in the floor. In the hall indicator box 9, will be described in detail later, the manual short-circuit portion 7 and the short-circuit terminal portion 10A which is connected at the brake release shorting connector 6 and the short connector 10C, by 10D, 10B are configured.
[0025]
　Also within the control panel 8, as will be described in detail later, the short-circuit connector 10C in the hall indicator box 9, 10D are short-circuit terminal unit 10A, when connected to 10B, the three-phase shorting open contactor coil 18 brake opening circuit 11 including an excitation circuit for the contactor contacts 4 to the open state is excited by a battery (brake opening power source 12) is constructed.
[0026]
　Case of installing the control panel 8 to the top of the hoistway 101, if not move the car 103 around the top floor, it is difficult to access to the control panel 8. In conventional thinking, the prolonging its wiring 7A to hall indicator box 9 provided manually short-circuit portion 7 in the hole indicator box 9, increases the resistance of the three-phase short circuit in the emergency stop. The emergency stop, it is necessary to shorten the empty run distance, it is preferable to obtain a large braking torque. However, if the resistance value of the three-phase short circuit increases, the braking torque is reduced to be obtained by a three-phase short circuit, the effect will be reduced by the braking torque.
[0027]
　Therefore, in this embodiment, a short circuit (emergency stop short circuit) 4 and 5 for generating a braking torque by short-circuiting the three-phase windings of the hoisting machine motor 1 to an emergency stop, the hoisting during brake release a short circuit (when the brake open short circuit) 6,7 for the winding of the machine the motor 1 to generate a braking torque by short-circuiting the three-phase, are separately provided. Emergency stop short circuit is constituted by an automatic short circuit portion 5 having a contactor contacts 4. Automatic short circuit portion 5 having a contactor contacts 4 is configured in the control panel 8, and to reduce the wiring resistance by shortening the wiring length.
[0028]
　On the other hand, the brake release during short circuit is constituted by a manual short-circuit portion 7 and the short-circuit connector 6. Manual shorting terminal portion 7A disposed on the hole indicator box 9, when the brake is open, connects the shorting connector 6 shown in FIG. For this, the manual short-circuit portion 7 is extended to within hole indicator box 9, the manual short-circuit terminal portion 7A is disposed in the hole indicator box 9. Moreover, short-circuit terminal unit 10A configured to brake release circuit 11, 10B is electrically connected to the wiring 10E which is extended to within hole indicator box 9 is disposed in the hole indicator box 9.
[0029]
　Brake opening time short circuits 6 and 7, as compared with the emergency stop short circuits 4, no problem even if the braking torque is reduced due to an increase in wiring resistance. Therefore, in this embodiment, it is separately provided with emergency stop short circuits 4 a brake opening time short circuit 6,7. During brake release, by short-circuiting the manual short-circuit terminal unit 7A in the short-circuit connector 6, by a simple operation of in the hall indicator box 9, generating a braking torque windings of the hoisting machine motor 1 with three-phase shorting it can be. Thereby, the operability in the case of utilizing braking torque during brake release, can be improved.
[0030]
　Further, in this embodiment, by emergency stop short circuits 4 and 5 are provided separately from the brake releasing during the short circuit 6, it does not increase the resistance of the emergency stop short circuit 4,5 . Therefore, it is possible to take full advantage of the braking torque at the time of an emergency stop.
[0031]
　Figure 3 is a circuit diagram showing a brake opening circuit 11 shown in FIG.
[0032]
　In the control panel 8 is provided with brake releasing power source 12 such as a battery, to the brake releasing power source 12, a brake-open operation switch 13, the series connection of the brake release contactor coil 14 is connected there. Also in the brake releasing power source 12, a brake release contactor contact 15 of the brake release contactor coil 14, the series connection body is connected to the brake coil 16.
[0033]
　When the brake-open operation switch 13 is closed, the brake release contactor coil 14 is excited, the brake release contactor contact 15 is closed. Further, when the brake release contactor contact 15 is closed, so that the electromagnetic brake device is released the brake coil 15 is energized. On the other hand, the normal operation control for power supply 17, the three-phase shorting open contactor coil 18, the series connection of the three-phase shorting open contactor coil control transistor 19 is connected.
[0034]
　Three-phase shorting open contactor coil 18 by being energized, to open the three-phase short circuit by automatic shorting portion 5 opens the contactor contacts 4. Also, three-phase shorting open contactor coil control transistor 19 by the ON state, to excite the three-phase shorting open contactor coil 18.
[0035]
　The brake release circuit 11 of this embodiment, for typical brake release circuit, a short-circuit terminal portion 10A connected between the brake releasing manipulation switch 13 and three-phase short-circuit-open contactor coil 18, the three a phase short circuit opening contactor control transistor 19 and connected to short-circuit terminal section 10B in parallel, has been added.
[0036]
　Now, even if the three-phase shorting open contactor coil 18 is lost the normal control power supply 17 and the excitation disabled state, FIG. 1 and the short-circuit terminal portions 10A, 10B of the hole indicator box 9 shown in FIG. 2 shorting connector 10C shown in FIG. 2, connecting 10D, short-circuit terminal portions 10A and the short-circuit terminal section 10B shown in FIG. 3 is short-circuited connector 10C, is short-circuited by 10D. Accordingly, the brake releasing power source 12, so that the brake release contactor coil 14 and the three-phase short circuit open contactor coil 18 is energized, respectively are connected.
[0037]
　In this embodiment, at the time of brake release, as well as short-circuit the manual short-circuit portion 7 in the short-circuit connector 6, a short circuit short-circuit terminal unit 10A, and 10B shorting connector 10C, by 10D. As a result, to excite the three-phase short circuit open for the contactor coil 18. The excitation of the three-phase shorting open contactor coil 18, opening the contactor contacts 4. Thus, in this embodiment, it is possible to obtain the braking torque without passing through the contactor contacts 4. Thus, it is possible to reduce the load on the contactor contacts 4, it is possible to extend the life of the contactor contacts 4.
[0038]
　According to this way the present invention, while allowing that reduce the resistance of the circuit for short-circuiting the emergency stop by utilizing the braking torque to the maximum, and to be easily operated during brake release it is possible to obtain an elevator controller.
[0039]
　In this embodiment, the short-circuit connector 10C, while the short-circuit connector 10D and the short connector 6 has been described for the case where a integrated, the short-circuit connector 10C, necessarily constructed integrally shorting connector 10D and the short connector 6 You need not be. However, by configuring the short-circuit connector 10C, the shorting connector 10D and the short connector 6 together it can be performed in a short time the short-circuit operation. Further, three short-circuit portion (short-circuit terminal portions 10A, short-circuit terminal section 10B and a manual short-circuit portion 7) in one of the short-circuit operation it is possible to short-circuit all, one of the short-circuit operation of the three short-circuit portion can be prevented from being left is not.
[0040]
　Also, the manual short-circuit terminal portions 7A and short-circuit terminal portions 10A, 10B has been described as being located in the hole indicator box 9 provided on the top floor of the hall H, necessarily provided on the top floor of the hall H need not be a hall indicator box 9. Hall indicator box 9 provided in the hole H of the lower floor than the top floor, the manual short-circuit terminal portions 7A and short-circuit terminal unit 10A, may be disposed 10B.
[0041]
　In particular, since the separately the emergency and stop short circuit 4,5 brake opening time of short circuit 6 is provided, it is possible to increase the length of wire 7B of the brake release during short circuits 6 and 7. Therefore, the floor of the hall indicator box 9 away from the control panel 8 disposed on the top of the hoistway 101, can be placed manually short-circuit terminal portions 7A and short-circuit terminal portion 10A, the 10B. However, in order to obtain a large braking torque by the time the brake open, the control panel 8 is an elevator device disposed on top of the hoistway 101, the manual short-circuit terminal portions 7A and short-circuit terminal portions 10A, 10B on the top floor of a hall indicator it is preferably disposed in the box 9.
[0042]
　Manual shorting terminal portions 7A and short-circuit terminal portions 10A, 10B are not necessarily required to be placed in the hole indicator box 9, by arranging the holes indicator box 9 which is an existing structure, manually short-circuit terminal with a simple structure parts 7A and short-circuit terminal portions 10A, can be arranged 10B.
[0043]
　In this embodiment, the hoisting machine 105 and the control unit 3 which includes a hoisting machine motor 1 and sheave 102 and the control panel 8 of matches (see FIG. 1), the arrangement configurations at the top of the hoistway 101 Description but was not necessarily to be placed on top of the elevator shaft 101 and the hoisting machine 105 and the control panel 8. In addition, it is not necessary to the hoist 105 and the control panel 8 is co-located in the hoistway 101. Even the control panel 8 has been arranged at the position of the throat in the hoistway 101, it remains that the operability is improved by the present embodiment is not. However, if the control panel 8 is placed on top of the hoistway 101, because it is not easy to approach the control panel 8, the present embodiment is particularly effective.
[0044]
　The present invention is not limited to the embodiments described above, but includes various modifications. For example, it is possible to apply the present invention without limiting the brake opening circuit 11 illustrated in FIG.
DESCRIPTION OF SYMBOLS
[0045]
　1 ... hoist motor, 5 ... automatic short circuit portion, 6 ... shorting connector, 7 ... manually short-circuit unit, 9 ... Hall indicator box, 10A, 10B ... short-circuit terminal unit, 11 ... brake release circuit, 14 ... for releasing brake contactor coil, 18 ... three-phase short circuit open for the contactor coil.

WE CLAIM

An elevator control apparatus used for braking the elevator car braking torque obtained by winding of the hoisting machine motor which is connected via a control device to a three-phase AC power supply to three-phase shorting,
　the emergency stop the brake torque a first short-circuit portion for generating said comprises a braking torque and a second short circuit portion as a separate circuit which is generated when the rescue operation by brake release,
　the second short-circuit portion, the three-phase windings of the hoist motor elevator control apparatus characterized by three-phase coil short-circuit terminal unit for short-circuiting is disposed in the hole indicator box.
[Requested item 2]
　An elevator control apparatus according to claim 1,
　wherein the first short-circuit portion is disposed in the control panel housing the elevator control device, an automatic short circuit portion for automatically actuating the emergency stop,
　the second short-circuit portion elevator controller, characterized in that a manual short-circuit portion for short-circuiting the three-phase winding short-circuit terminal unit manually using the shorting connector.
[Requested item 3]
　An elevator control apparatus according to claim 2,
　the contactor contacts for short-circuiting the three-phase windings of the hoist motor is provided in the automatic short circuit portion, a three-phase short circuit open for opening said contactor contact by being excited and a contactor coil,
　the holes indicator box, the elevator control apparatus characterized by comprising a short-circuit terminal unit for a three-phase short-circuit opening to excite by connecting the three-phase shorting open contactor coil to the power source.
[Requested item 4]
　An elevator control apparatus according to claim 3,
　when the rescue operation by brake release, the three-phase short circuit according to the first short-circuit portion is opened by shorting shorting terminal portions of the three-phase shorting opening for short-circuit connector, wherein elevator control apparatus characterized by generating a braking torque by the three-phase short circuit according to the second short-circuit portion.
[Requested item 5]
　The hoistway, a hoisting machine having a hoisting machine motor and sheaves, and wound around the rope on the sheave, the elevator apparatus having a car and counterweight which is connected by the rope,
　according to claim 1 to the elevator apparatus comprising the elevator control apparatus according to any one of the 4.
[Requested item 6]
　An elevator apparatus according to claim 5,
　control panel housing the elevator controller, an elevator apparatus characterized in that it is placed on top of the hoistway.