CN107117518B - Elevator with opening and closing device - Google Patents
Elevator with opening and closing device Download PDFInfo
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- CN107117518B CN107117518B CN201610104386.XA CN201610104386A CN107117518B CN 107117518 B CN107117518 B CN 107117518B CN 201610104386 A CN201610104386 A CN 201610104386A CN 107117518 B CN107117518 B CN 107117518B
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- opening
- electromagnetic coil
- closing
- power supply
- ventilation port
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
- B66B11/024—Ventilation systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
Provided is an elevator which realizes automatic opening and closing of an emergency ventilation port provided in a car with less power consumption. In an elevator provided with an opening/closing device for opening/closing a ventilation port provided in a car by an opening/closing member, the opening/closing device is provided with an opening/closing mechanism and a control mechanism, and the opening/closing mechanism is provided with: a lever connected to the opening/closing member; and a self-holding solenoid having a 1 st electromagnetic coil and a 2 nd electromagnetic coil arranged in parallel in an axial direction inside a hollow cylindrical yoke, a permanent magnet disposed between the 1 st electromagnetic coil and the 2 nd electromagnetic coil, and a plunger movable along an axis of the yoke and in contact with the rod portion, the control mechanism including: an electric storage unit that is charged when power supply from a power supply is started; and a control circuit for supplying a current from the power storage unit to the 2 nd electromagnetic coil when the supply of the power from the power supply is stopped by allowing a current for a predetermined time to flow through the 1 st electromagnetic coil.
Description
Technical Field
The present invention relates to an elevator including an opening/closing device for opening and closing an emergency ventilation port provided in a car by an opening/closing member.
Background
In recent years, with the high-rise of buildings, various high-speed elevators that raise and lower a car at a speed of several hundreds meters per minute have been proposed. In such an elevator, in order not to give passengers a sense of discomfort due to a rapid change in air pressure during ascending and descending, the air pressure in the car is adjusted by an air pressure adjusting device such as a blower that sucks and exhausts air from the car.
In order to control the air pressure in the car to an optimum state, it is necessary to use a car having a highly airtight structure. On the other hand, if the airtightness is improved, there is a risk that the inside of the car becomes deficient in oxygen when the power supply is stopped due to a power failure or the like and the operation of the air pressure adjusting device is stopped. Therefore, in the elevator, the provision of an emergency ventilation port (hereinafter simply referred to as a "ventilation port") in the car is determined as a standard. Normally, the ventilation port is closed by an opening/closing member such as a cap. When power supply to the elevator is stopped due to a power failure or the like, the opening/closing member is controlled to be opened. As described above, as a technique for controlling the opening and closing of the opening and closing member in accordance with the supply state of the operating power to the elevator, techniques such as patent document 1 and patent document 2 below have been proposed.
Patent document 1 discloses a technique for controlling opening and closing of ventilation ports provided in a sealing plate of a car. Normally, the ventilation port is closed by an opening/closing member, and the opening/closing member is fixed by an arm of a lock device. In this opening/closing member, a cable for suspending the weight is attached to an end portion thereof, and when power is interrupted, the power supply to the lock device is interrupted, so that the fixing of the opening/closing member by the arm is released, and the cable pulls the opening/closing member by the weight of the weight, thereby opening the ventilation port.
However, the technique described in patent document 1 does not include a means for automatically closing the opening/closing member when a power failure or the like returns. Thus, even if power supply to the elevator is restarted, the elevator cannot be operated until a maintenance worker or the like manually closes the opening/closing member.
As described above, in the technique described in patent document 2, it is not necessary for a maintenance worker or the like to manually close the opening/closing member as described in patent document 1.
Documents of the prior art
Patent document
Patent document 1: JP-A-2004-010286
Patent document 2: JP 2011-57414 publication
However, in the technique disclosed in patent document 2, in order to lock the opening/closing member and maintain the airtight state inside the car, it is necessary to constantly supply current to the locking solenoid in a normal state. This causes a problem of an increase in power consumption of the entire elevator. In addition, in the technique disclosed in patent document 2, there is a concern that a failure may occur in an electronic circuit or the like in the periphery of the locking solenoid due to heat generation of the locking solenoid.
Disclosure of Invention
The invention aims to provide an elevator which realizes the automatic opening and closing of an emergency ventilation port arranged on a car with less power consumption.
In order to solve the above problem, an elevator according to the present invention is an elevator including an opening/closing device that opens and closes a ventilation port provided in a car by an opening/closing member, the opening/closing device including an opening/closing mechanism and a control mechanism that controls the opening/closing mechanism, the opening/closing mechanism including: a lever connected to the opening/closing member; and a self-holding solenoid including a 1 st electromagnetic coil and a 2 nd electromagnetic coil arranged in parallel in an axial direction inside a hollow cylindrical yoke, a permanent magnet disposed between the 1 st electromagnetic coil and the 2 nd electromagnetic coil, and a plunger that is movable along an axial center of the yoke and is in contact with the rod portion, wherein the plunger is moved to a 1 st position where the opening/closing member closes the ventilation port when the 1 st electromagnetic coil is energized, is moved to a 2 nd position where the opening/closing member opens the ventilation port when the 2 nd electromagnetic coil is energized, and is held at the 1 st position or the 2 nd position by the permanent magnet when the 1 st electromagnetic coil and the 2 nd electromagnetic coil are not energized, the control means including: an electric storage unit that is charged when power supply from a power supply is started; and a control circuit configured to supply a current from the power storage unit to the 2 nd electromagnetic coil when a current flowing through the 1 st electromagnetic coil for a predetermined time is stopped from being supplied from the power supply.
The self-holding solenoid may include an energizing unit that energizes the plunger to the 2 nd position.
The ventilation port may be formed in a base member disposed between the side panel of the car and the bottom plate and/or the sealing plate.
The opening/closing mechanism may be configured to include a plurality of the self-holding solenoids, and 1 of the opening/closing members may be connected to each of the lever portions of the plurality of the self-holding solenoids.
The control circuit may be configured to include: an electromagnetic relay having a 1 st relay coil, a normally closed contact, and a normally open contact; a time relay having a 2 nd relay coil and a delay cut-off contact that is opened after a predetermined time has elapsed since a current has flowed through the 2 nd relay coil; and a diode in which the normally open contact, the delay cut contact, and the 1 st electromagnetic coil are inserted in series between a high-potential-side power supply terminal and a low-potential-side power supply terminal of the power supply, the 1 st relay coil is inserted between a high-potential-side terminal of the normally open contact and the low-potential-side power supply terminal, the 2 nd relay coil is inserted between the other terminal of the normally open contact and the low-potential-side power supply terminal, and an anode of the diode is connected, and the power storage unit is inserted between a cathode of the diode and the low-potential-side power supply terminal, and the normally open contact and the 2 nd electromagnetic coil are inserted in series.
Effects of the invention
According to the present invention, when a current flows from the control circuit to the 1 st electromagnetic coil when the power supply from the power source is started, the plunger moves to the 1 st position where the opening/closing member closes the ventilation port, thereby closing the ventilation port. Then, if a given time has elapsed since the start of the power supply, the current no longer flows from the control circuit to the 1 st solenoid coil. At this time, a magnetic circuit is formed by the permanent magnet, the plunger, and the yoke, and the plunger is held at the 1 st position by the magnetic force thereof, thereby maintaining the closed state of the ventilation port. Therefore, the closing of the ventilation port by the opening/closing member can be maintained without causing current to flow through the 1 st electromagnetic coil all the time.
When a discharge current flows from the power storage unit to the 2 nd electromagnetic coil when power supply from the power supply is stopped due to a power failure or the like, the plunger moves to the 2 nd position where the ventilation port is opened by the ventilation member, and the ventilation port is opened. After that, when the discharge of the power storage unit is completed, the discharge current does not flow from the power storage unit to the 2 nd electromagnetic coil. At this time, a magnetic circuit is formed by the permanent magnet, the plunger, and the yoke, and the plunger is held at the 2 nd position by the magnetic force thereof, thereby maintaining the open state of the ventilation port. Therefore, the opening of the ventilation port by the opening/closing member can be maintained without causing current to flow through the 2 nd electromagnetic coil all the time.
According to the present invention, since the opening/closing member can maintain the opening/closing of the ventilation port without allowing current to flow through either the 1 st electromagnetic coil or the 2 nd electromagnetic coil at all times, it is possible to suppress power consumption of the entire elevator and also prevent heat generation of the 1 st electromagnetic coil or the 2 nd electromagnetic coil due to the constant current supply.
Drawings
Fig. 1 is a perspective view showing a schematic configuration of a car provided with an opening/closing device according to embodiment 1 of the present invention.
Fig. 2 is an enlarged view of a main portion of the base member to which the opening/closing mechanism is attached, showing a state in which the ventilation port is closed by the opening/closing member.
Fig. 3 is a sectional view of a main portion along the line III-III of fig. 2.
Fig. 4 is an enlarged view of a main portion of the base member to which the opening/closing mechanism is attached, showing a state in which the ventilation port is opened by the opening/closing member.
Fig. 5 is a sectional view of a main portion along line V-V of fig. 4.
Fig. 6 is a block diagram showing the structure of the opening/closing device.
Fig. 7 is a circuit diagram showing an electrical configuration of the control mechanism.
Fig. 8 is a diagram showing paths of currents flowing through respective portions of the control mechanism.
Fig. 9 is an enlarged view of a main portion of a base member to which an opening/closing mechanism is attached according to embodiment 2 of the present invention.
Description of the symbols
1 cage
16 base component
2 opening and closing device
20 opening and closing mechanism
21 self-holding solenoid
211 st electromagnetic coil
212 nd 2 nd electromagnetic coil
213 permanent magnet
214 electromagnetic yoke
215 plunger
216 rod part
23 opening and closing member
30 control circuit
36 capacitor (accumulator unit)
A scavenge port
Detailed Description
Embodiments of the present invention are described below with reference to the drawings.
< embodiment 1 >
Fig. 1 is a perspective view showing a schematic configuration of a car 10 of an elevator according to embodiment 1 of the present invention. In fig. 1, the car 10 is viewed from above the back (the side opposite to the elevator doors 15 on which passengers get on and off). The car 10 is disposed in a hoistway to be able to ascend and descend.
As shown in fig. 1, the car 10 is provided with side panels 12 at the side and rear of a front panel 11 provided with an elevator door 15, and a space for passengers to ride is formed by closing up and down the panels 11 and 12 with a sealing plate 13 (ceiling) and a car floor 14 (floor). A blower 18 as an air pressure control device is provided in the sealing plate 13 to supply and discharge air inside the car 10, thereby controlling the air pressure of the car 10.
The ventilation opening a may be rectangular, for example, a horizontally long rectangular shape. In order to make the total opening area of the ventilation opening a satisfy the standards related to elevators in european standard (EN81) and ASME standard, the ventilation opening a can be set to 3.5% of the floor area.
As shown in fig. 2 to 5, the base member 16 has a substantially コ -shaped cross section and is opened outward in the circumferential direction, and the ventilation opening a is opened in the vertical portion of the base member 16. In fig. 2 and 4, a part of the base member 16 is omitted. The base member 16 is provided with the attachment plates 17 at predetermined intervals in the space shaped like "コ", and the opening/closing mechanism 20 is disposed in the space shaped like "コ" of the base member 16 and fixed to the attachment plates 17 by fastening screws or the like.
The opening/closing mechanism 20 constitutes a movable part of the opening/closing device 2. As shown in fig. 2 to 5, the opening/closing mechanism 20 includes: an opening/closing member 23 serving as a cover plate for opening and closing the ventilation port a; and self-holding solenoids 21, 21 that slide the opening-closing member 23 in the horizontal direction. In the illustrated embodiment, 2 self-holding solenoids 21 and 21 are arranged for 1 opening/closing member 23.
The self-holding type solenoid 21 is accommodated in each case 28 (omitted in fig. 3 and 5), and is fixed to a base plate 27 having both left and right ends bent upward. The base plate 27 is fixed to the base member 16 by attaching the upwardly bent portion to the attachment plate 17 shown in fig. 2 with fastening screws 29, or the like.
The opening/closing member 23 may be a plate-like member formed slightly larger than the ventilation opening a. In the present embodiment, the opening/closing member 23 is configured to block the ventilation port a from the outside, that is, to be movable in the X direction and the Y direction in fig. 2 and the like, the X direction is a direction to block the ventilation port a (hereinafter, appropriately referred to as "forward" or "forward direction"), and the Y direction is a direction to open the ventilation port a (hereinafter, appropriately referred to as "backward" or "backward direction").
As shown in fig. 3 and 5, in order to improve the sealing performance to the ventilation opening a, an air seal 24 is attached to the opening/closing member 23 on an abutting surface abutting against the base member 16 constituting the periphery of the ventilation opening a. The airtight member 24 can be made of sponge, rubber, or the like.
As shown in fig. 2 and 4, a roller bracket 25 having a roller 26 at its distal end is attached to the opening/closing member 23 to smoothly perform the opening/closing operation of the opening/closing member 23. The roller 26 rolls on a guide rail, not shown, provided on the base member 16, and can slide in parallel with the opening/closing member 23 while maintaining a vertical state.
Fig. 3 is a sectional view of a main portion along the line III-III of fig. 2. Each of the self-holding solenoids 21 has 2 electromagnetic coils 211 and 212 and an annular permanent magnet 213 arranged in parallel in an annular shape inside a hollow cylindrical yoke 214. More specifically, the permanent magnet 213 is disposed between the 1 st electromagnetic coil 211 and the 2 nd electromagnetic coil 212.
A plunger 215 (movable iron core) is slidably disposed in a hollow cylindrical space formed by the electromagnetic coils 211 and 212 and the permanent magnet 213. As shown in fig. 3, the plunger 215 is connected to a rod portion 216 at the tip end, and the rod portion 216 is connected to the opening/closing member 23.
The opening/closing mechanism 20 including the self-holding solenoid 21 configured as described above is electrically connected to a control mechanism 3 described later to configure the opening/closing device 2, and the control mechanism 3 controls the opening/closing mechanism 20.
For example, when the 1 st electromagnetic coil 211 is energized, the plunger 215 moves forward in the X direction as shown in fig. 3, and moves to the 1 st position where the opening/closing member 23 closes the ventilation port a as shown in fig. 2 and 3. Even in the state where the 1 st electromagnetic coil 211 is blocked from conducting electricity, the permanent magnet 213, the plunger 215, and the yoke 214 form a magnetic circuit, and the plunger 215 is held at the 1 st position by the magnetic force.
On the other hand, when the 2 nd electromagnetic coil 212 is energized, the plunger 215 moves backward in the Y direction to move to the 2 nd position where the opening/closing member 23 opens the ventilation port a as shown in fig. 4 and 5. Even in the state where the current flow to the 2 nd electromagnetic coil 212 is blocked, the permanent magnet 213, the plunger 215, and the yoke 214 form a magnetic path, and the plunger 215 is held at the 2 nd position by the magnetic force.
Fig. 6 is a block diagram of the opening/closing device 2. As shown in fig. 6, the opening/closing device 2 includes an opening/closing mechanism 20 and a control mechanism 3. In fig. 6, a plurality of opening/closing mechanisms 20 arranged in each ventilation opening a can be collectively controlled by 1 control mechanism 3. In the figure, the opening/closing mechanism 20 of the ventilation port a formed in the upper base member 16 is controlled by 1 control mechanism 3, and the opening/closing mechanism 20 of the ventilation port a formed in the lower base member 16 is controlled by 1 control mechanism 3.
Fig. 7 shows 1 embodiment of a circuit diagram showing the electrical configuration of the electromagnetic coils 211 and 212 and the control mechanism 3. In fig. 7, only one pair of the 1 st electromagnetic coil 211 and the 2 nd electromagnetic coil 212 among the plurality of self-holding solenoids 21 controlled by the control mechanism 3 is shown, and although the remaining electromagnetic coils 211 and 212 are not shown, the remaining 1 st electromagnetic coil 211 is connected in parallel to the 1 st electromagnetic coil 211 shown in the figure, and the remaining 2 nd electromagnetic coil 212 is connected in parallel to the 2 nd electromagnetic coil 212 shown in the figure.
The control mechanism 3 includes a control circuit 30. As shown in fig. 7, the control circuit 30 includes: a high-potential-side power supply terminal PVDD, a low-potential-side power supply terminal PVSS, an electromagnetic relay 31, a time relay 32, a resistor 33, a diode 34, a diode 35, and a capacitor 36 serving as an electric storage means. The electromagnetic relay 31 includes: a normally open (make) contact 310, a normally closed (break) contact 311, and a relay coil 312. The time relay 32 has a delay cut contact 320 and a relay coil 321. The delay time of the time relay 32 (time from when the current flows through the relay coil 321 to when the delay cut contact 320 is opened) is set to 0.5 second.
In the present embodiment, in a normal state in which power failure or the like does not occur, a dc voltage of 24V is applied between the high-potential side power supply terminal PVDD and the low-potential side power supply terminal PVSS. As shown in fig. 7, a normally open contact 310, a delay cut contact 320, and a 1 st electromagnetic coil 211 are inserted in series between a high-potential-side power supply terminal PVDD and a low-potential-side power supply terminal PVSS of the control circuit 30. The relay coil 312 is inserted between the high-potential-side terminal N1 and the low-potential-side power supply terminal PVSS of the normally open contact 310. A relay coil 321 is inserted between the other terminal N2 of the normally open contact 310 and the low-potential-side power supply terminal PVSS.
The anode of the diode 35 is connected to the terminal N2 of the normally open contact 310, and the resistor 33 and the capacitor 36 are inserted in series between the cathode of the diode 35 and the low-potential-side power supply terminal PVSS. The diode 34 is connected in anti-parallel with the resistor 33, and the normally closed contact 311 and the 2 nd electromagnetic coil 212 are inserted in series between a common connection point N3 between the cathode of the diode 34 and the cathode of the diode 35 and the low potential side power supply terminal PVSS.
The control of the opening/closing mechanism 20 by the control circuit 30 will be described in detail below with reference to fig. 8. Fig. 8 is a diagram showing currents flowing through the respective portions of the control circuit 30. In fig. 8(a), the paths of the currents flowing through the respective portions of the control circuit 30 immediately after the start of the power supply are shown by thick lines. When a dc voltage of 24V is applied between the high-potential-side power supply terminal PVDD and the low-potential-side power supply terminal PVSS, a current flows through the relay coil 312 of the electromagnetic relay 31. As a result, the normally open contact 310 of the electromagnetic relay 31 is closed, and the normally closed contact 311 is opened. Thereby, the current flows to the diode 35, the delayed cutoff contact 320, and the relay coil 321 via the normally open contact 310.
Since the normally closed contact 311 is open, the current flowing through the diode 35 flows to the capacitor 36 via the resistor 33. Since a rush current is generated when a current flows through the capacitor 36, the resistor 33 is connected in series to suppress the charging rush current of the capacitor 36. Thereby, the capacitor 36 is charged. In addition, since the diode 34 is reverse-biased, no current flows.
The current flowing through the delay cut contact 320 flows to the 1 st electromagnetic coil 211. Accordingly, the plunger 215 moves forward in the X direction by the suction of the 1 st electromagnetic coil 211. As a result, the lever portion 216 pushes out the opening/closing member 23 to advance to the 1 st position in contact with the ventilation opening a as shown in fig. 2 and 3. Then, the ventilation opening a is closed by the opening/closing member 23, and the inside of the car 10 is maintained airtight.
When a predetermined time, for example, 0.5 second, has elapsed since the current passed through the relay coil 321, the delayed disconnecting contact 320 is opened, and the flow of the current to the 1 st electromagnetic coil 211 is stopped as shown in fig. 8 (b). Since the permanent magnet 213, the plunger 215, and the yoke 214 form a magnetic circuit even when the flow of current into the 1 st electromagnetic coil 211 is stopped, the plunger 215 is held at the 1 st position by the magnetic force, and the ventilation port a is maintained in a state of being closed by the opening/closing member 23.
When the charging of the capacitor 36 is completed, as shown in fig. 8(c), the current does not flow through the path subsequent to the diode 35, and the flow of the current into the capacitor 36 is stopped.
As described above, according to the present embodiment, when a current for a predetermined time is passed to the 1 st electromagnetic coil 211, the plunger 215 moves to the 1 st position, and the ventilation port a can be closed by the opening/closing member 23. Further, even if a predetermined time has elapsed since the start of the power supply, the plunger 215 is held at the 1 st position by the magnetic path formed without the current always flowing through the 1 st electromagnetic coil 211, and therefore the closing of the ventilation port a by the opening/closing member 23 can be maintained. Therefore, the ventilation port a can be closed with less power consumption and the state can be maintained.
When the supply of power to the control circuit 30 is stopped due to a power failure or the like, the flow of current into the relay coil 312 is stopped, and therefore the normally open contact 310 is opened and the normally closed contact 311 is closed. Further, since the flow of current into the relay coil 321 is also stopped, the closing of the interruption contact 320 is delayed. Since the normally closed contact 311 is closed, a current path shown by a thick line in fig. 8(d) is formed, and the capacitor 36 starts discharging. In order to prevent the energy consumed by the resistor 33 in discharging the capacitor 36 from becoming large, a diode 34 is connected in parallel to both ends of the resistor 33. Since the diode 35 is reverse-biased, no current flows through the diode 35.
As a result, the discharge current of the capacitor 36 mainly flows to the 2 nd electromagnetic coil 212 through the diode 34, and the plunger 215 moves backward in the Y direction by the attraction by the 2 nd electromagnetic coil 212. The rod portion 216 pulls the opening/closing member 23 by the retraction of the plunger 215, and is retracted to the 2 nd position where the ventilation opening a is opened as shown in fig. 4 and 5. Then, the airtight state of the car 10 is released by opening the ventilation opening a.
When the discharge of the capacitor 36 is completed, the current does not flow through the 2 nd electromagnetic coil 212, but the permanent magnet 213, the plunger 215, and the yoke 214 form a magnetic path, and therefore the plunger 215 is held at the 2 nd position by the magnetic force thereof, and the ventilation port a is maintained in an open state.
As described above, according to the present embodiment, the electric power charged in the capacitor 36 is discharged, so that the current flows for a predetermined time period to the 2 nd electromagnetic coil 212, and the plunger 215 moves to the 2 nd position. As a result, the opening and closing member 23 opens the ventilation port a. After the completion of the discharge, even if the current is not always passed through the 2 nd electromagnetic coil 212, the plunger 215 is held at the 2 nd position by the formed magnetic path, and therefore, the opening of the ventilation port a by the opening/closing member 23 can be maintained. Therefore, the ventilation port a can be opened with less power consumption and the state can be maintained.
After that, when the power failure is terminated and the supply of the dc voltage 24V to the control circuit 30 is restarted, the current flows through the 1 st electromagnetic coil 211, and the ventilation opening a is closed again by the opening/closing member 23 (fig. 8 a), so that the airtightness of the interior of the car 10 is maintained even thereafter (fig. 8 b and 8 c).
As described above, according to the present invention, since the opening and closing of the ventilation opening a by the opening and closing member 23 can be maintained without causing current to flow through the 1 st electromagnetic coil 211 and the 2 nd electromagnetic coil 212 at all times, power consumption of the entire elevator is suppressed, and excessive heat generation of the electromagnetic coils 211 and 212 is not caused. Therefore, the automatic opening and closing of the transfer ports a provided in the car 10 of the elevator can be realized with less power consumption. Further, operations by maintenance personnel and the like are not required in these operations.
< embodiment 2 >
In the above embodiment, the 1 opening/closing member 23 is configured to be operated by the 2 self-holding solenoids 21, but as shown in fig. 9, the 1 self-holding solenoid 21 may be configured to be disposed for the 1 opening/closing member 23. In this case, the ventilation port a and the opening/closing member 23 are formed smaller than those of embodiment 1, and this is suitable for reducing the load on each self-holding solenoid 21. In addition, the number of the ventilation ports a may be increased by the portion of the ventilation ports a reduced from that of embodiment 1.
The above description is intended to illustrate the present invention and should not be construed as limiting the invention as set forth in the claims or as narrowing the scope thereof. It goes without saying that the configuration of each part of the present invention is not limited to the above-described embodiment, and various modifications can be made within the technical scope described in the claims.
For example, in the above embodiment, the self-holding solenoid 21 holds the plunger 215 at the 1 st position and the 2 nd position only by the permanent magnet 213, but may be provided with an energizing unit such as a coil spring that energizes the plunger 215 to the 2 nd position. In this case, by making the energizing force of the energizing means smaller than the coercive force of the plunger 215 by the permanent magnet 213, even if the capacitor 36 to which the power is supplied by the ten thousand pair of 2 nd electromagnetic coils 212 is not sufficiently charged, the ventilation port a can be opened at the time of power failure with the assistance of the energizing force of the energizing means.
In the above embodiments, the 1 st electromagnetic coil 211 and the 2 nd electromagnetic coil 212 are controlled by the 1 control circuit 30, but the 1 st electromagnetic coil 211 and the 2 nd electromagnetic coil 212 may be controlled by the respective control circuits.
Further, the capacitor 36 may be replaced with another electric storage unit (for example, a lead storage battery).
In the above embodiment, the high-potential-side power supply voltage value of the control circuit 30 is set to 24V, but the value may be changed within a range that does not hinder the operation of the electromagnetic coils 211 and 212. It goes without saying that the components and circuit configuration constituting the control circuit 30 can be appropriately changed according to the high-potential-side power supply voltage value, the number of solenoids provided in the opening/closing member 20, and the like.
In the above embodiment, the opening/closing mechanism 20 closes the ventilation opening a by the opening/closing member 23 by pushing out the rod portion 216 and opens the ventilation opening a by the opening/closing member 23 by pulling back the rod portion 216, but the opening/closing member 23 may be arranged such that the ventilation opening a is positioned on the rod portion 216 side, the opening/closing member 23 closes the ventilation opening a by pulling back the rod portion 216, and the opening/closing member 23 opens the ventilation opening a by pushing out the rod portion 216.
It is needless to say that the ventilation opening a is not formed in the base member 16, but may be provided in the side surface plate 12, the sealing plate 13, the platform plate 14, and the like.
Further, even when the ventilation port a is formed in the base member 16, the opening/closing mechanism 20 may be installed inside the base member 16 so that the circumferential surface of the base member 16 is opened inward.
Claims (5)
1. An elevator provided with an opening/closing device for opening/closing a ventilation port provided in a car by an opening/closing member,
the opening/closing device is provided with an opening/closing mechanism and a control mechanism for controlling the opening/closing mechanism,
the opening and closing mechanism includes:
a lever connected to the opening/closing member; and
a self-holding solenoid including a 1 st electromagnetic coil and a 2 nd electromagnetic coil arranged in parallel in an axial direction inside a hollow cylindrical yoke, a permanent magnet disposed between the 1 st electromagnetic coil and the 2 nd electromagnetic coil, and a plunger movable along an axial center of the yoke and in communication with the rod portion, wherein the plunger is moved to a 1 st position at which the opening/closing member closes the ventilation port when the 1 st electromagnetic coil is energized, the plunger is moved to a 2 nd position at which the opening/closing member opens the ventilation port when the 2 nd electromagnetic coil is energized, and the plunger is held at the 1 st position or the 2 nd position by the permanent magnet when the 1 st electromagnetic coil and the 2 nd electromagnetic coil are not energized,
the control mechanism includes:
an electric storage unit that is charged when power supply from a power supply is started; and
a control circuit for supplying a current from the power storage unit to the 2 nd electromagnetic coil when a current flowing through the 1 st electromagnetic coil for a predetermined time is stopped from being supplied from the power supply,
the control circuit has:
an electromagnetic relay having a 1 st relay coil, a normally closed contact, and a normally open contact;
a time relay having a 2 nd relay coil and a delay cut-off contact that is opened after a predetermined time has elapsed since a current has flowed through the 2 nd relay coil; and
a diode (D) for detecting the voltage of the power supply,
the normally open contact, the delay cut contact, and the 1 st electromagnetic coil are inserted in series between a high-potential-side power supply terminal and a low-potential-side power supply terminal of the power supply,
the 1 st relay coil is inserted between the high-potential-side terminal of the normally open contact and the low-potential power supply terminal,
the 2 nd relay coil is inserted between the other terminal of the normally open contact and the low potential power supply terminal and connected to the anode of the diode,
the electric storage unit is interposed between the cathode of the diode and the low-potential power supply terminal and the normally closed contact and the 2 nd electromagnetic coil are inserted in series.
2. Elevator according to claim 1,
the self-holding solenoid is provided with:
an energizing unit that energizes the plunger to the 2 nd position.
3. Elevator according to claim 1 or 2,
the ventilation port is formed in a base member disposed between the side panel of the car and the car floor and/or the sealing plate.
4. Elevator according to claim 1 or 2,
the opening/closing mechanism has a plurality of the self-holding type solenoids, and each of the lever portions of the plurality of the self-holding type solenoids is connected to 1 of the opening/closing members.
5. Elevator according to claim 3,
the opening/closing mechanism has a plurality of the self-holding type solenoids, and each of the lever portions of the plurality of the self-holding type solenoids is connected to 1 of the opening/closing members.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610104386.XA CN107117518B (en) | 2016-02-25 | 2016-02-25 | Elevator with opening and closing device |
| JP2016042515A JP6597412B2 (en) | 2016-02-25 | 2016-03-04 | Elevator with switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610104386.XA CN107117518B (en) | 2016-02-25 | 2016-02-25 | Elevator with opening and closing device |
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| CN107117518A CN107117518A (en) | 2017-09-01 |
| CN107117518B true CN107117518B (en) | 2020-03-03 |
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| CN110228744B (en) * | 2018-03-06 | 2021-10-19 | 富士达株式会社 | Method for setting air pressure control mode and elevator with air pressure adjusting device |
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|---|---|---|---|---|
| JPS56101619U (en) * | 1979-12-28 | 1981-08-10 | ||
| JPS63235282A (en) * | 1987-03-25 | 1988-09-30 | 株式会社東芝 | Elevator with heating apparatus |
| JPH0211983A (en) * | 1988-06-28 | 1990-01-17 | Kiyohara Masako | Solenoid controller |
| EP1049353A2 (en) * | 1999-04-26 | 2000-11-02 | Matsushita Electric Industrial Co., Ltd. | Bass reproduction speaker apparatus |
| CN102020170A (en) * | 2009-09-11 | 2011-04-20 | 株式会社日立制作所 | Elevator ventilation device |
| JP2011079604A (en) * | 2009-10-05 | 2011-04-21 | Mitsubishi Electric Corp | Elevator device |
| CN102556779A (en) * | 2010-12-16 | 2012-07-11 | 重庆艾尤旺科技有限公司 | Energy-saving operation control system for elevator car |
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2016
- 2016-02-25 CN CN201610104386.XA patent/CN107117518B/en active Active
- 2016-03-04 JP JP2016042515A patent/JP6597412B2/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56101619U (en) * | 1979-12-28 | 1981-08-10 | ||
| JPS63235282A (en) * | 1987-03-25 | 1988-09-30 | 株式会社東芝 | Elevator with heating apparatus |
| JPH0211983A (en) * | 1988-06-28 | 1990-01-17 | Kiyohara Masako | Solenoid controller |
| EP1049353A2 (en) * | 1999-04-26 | 2000-11-02 | Matsushita Electric Industrial Co., Ltd. | Bass reproduction speaker apparatus |
| CN102020170A (en) * | 2009-09-11 | 2011-04-20 | 株式会社日立制作所 | Elevator ventilation device |
| JP2011079604A (en) * | 2009-10-05 | 2011-04-21 | Mitsubishi Electric Corp | Elevator device |
| CN102556779A (en) * | 2010-12-16 | 2012-07-11 | 重庆艾尤旺科技有限公司 | Energy-saving operation control system for elevator car |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107117518A (en) | 2017-09-01 |
| JP6597412B2 (en) | 2019-10-30 |
| JP2017149575A (en) | 2017-08-31 |
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