elevator equipment

Abstract

To provide an elevator device including a battery which can be used even outside a car.SOLUTION: An elevator device includes a car 1, a counterweight 2, a rope 4, a hoisting machine 5, and a battery 10. The car 1 has a charging device 9. The car 1 and the counterweight 2 are suspended by the rope 4 in a hoistway 3. The rope 4 is wound around the hoisting machine 5. The battery 10 can be mounted on / detached from the charging device 9 and can be conveyed outside the car 1. When the battery is mounted on the charging device 9, it is charged with regenerative power by the hoisting machine 5.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to elevator systems. [Background technology]

[0002] Patent Document 1 describes an elevator device. In the elevator device described in Patent Document 1, a power storage device is provided in the car. The power storage device is arranged under the car. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-118277 Summary of the Invention [Problem to be solved by the invention]

[0004] In the elevator system described in Patent Document 1, the power storage device is permanently installed in the car, and is therefore used only to supply power to devices mounted on the car.

[0005] The present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide an elevator device equipped with a battery that can be used outside the car. [Means for solving the problem]

[0006] The elevator apparatus according to the present disclosure includes a car having a charging device, a counterweight, a rope for suspending the car and the counterweight in a hoistway, a hoist around which the rope is wound, and a battery that is detachable from the charging device and can be carried outside the car, and that is charged by regenerative power generated by the hoist when attached to the charging device. The battery removed from the charging device can be detachably attached to a battery case arranged outside the car, and when the battery is attached to the battery case, power is supplied from the battery to a specific external device. [Effects of the Invention]

[0007] According to the elevator system of the present disclosure, the battery that can be charged in the car can also be used outside the car. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram illustrating an example of an elevator device according to a first embodiment. [Figure 2] FIG. 10 is a diagram showing an example of a car stopped at a platform as viewed from the platform. [Figure 3] FIG. 2 is a diagram for explaining the function of the elevator device. [Figure 4] FIG. 2 illustrates an example of hardware resources of a control device. [Figure 5] FIG. 10 is a diagram illustrating another example of hardware resources of a control device. DETAILED DESCRIPTION OF THE INVENTION

[0009] The following detailed description will be given with reference to the drawings. Duplicate descriptions will be simplified or omitted as appropriate. In each drawing, the same reference numerals indicate the same or corresponding parts.

[0010] Embodiment 1 FIG. 1 is a diagram showing an example of an elevator apparatus according to a first embodiment. The elevator apparatus includes a car 1 and a counterweight 2. The car 1 moves up and down in a hoistway 3. The hoistway 3 is a space extending up and down formed in a building A. The car 1 and the counterweight 2 are suspended from the hoistway 3 by a rope 4. The counterweight 2 moves up and down in the hoistway 3 in the direction opposite to the direction in which the car 1 moves. FIG. 1 shows an example of an elevator apparatus using a 1:1 roping system.

[0011] The rope 4 is wound around a hoist 5. The hoist 5 drives the car 1. A control device 6 controls the hoist 5. That is, the movement of the car 1 is controlled by the control device 6.

[0012] 1 shows an example in which the hoisting machine 5 and the control device 6 are provided in a machine room 13 above the hoistway 3. The hoisting machine 5 and the control device 6 may also be provided in the hoistway 3. The hoisting machine 5 may also be provided at the top of the hoistway 3 or in a pit in the hoistway 3.

[0013] Fig. 1 shows a state in which car 1 is stopped at a landing 7 formed in building A. Fig. 2 is a diagram showing an example of car 1 stopped at landing 7 as viewed from landing 7. Fig. 2 shows a state in which the doors of landing 7 and car 1 are open.

[0014] A car chamber 8 is formed in the car 1. The car chamber 8 is a space for passengers to ride in. The car 1 is also equipped with a charging device 9. The charging device 9 is a device for charging batteries 10. Figures 1 and 2 show an example in which the charging device 9 is provided on the back wall of the car chamber 8. Figure 2 also shows an example in which the charging device 9 can charge multiple batteries 10 simultaneously.

[0015] The battery 10 is detachable from the charging device 9. A user can attach the battery 10 to the charging device 9 in the car room 8. In the example shown in FIG. 2, three batteries 10 are attached to the charging device 9. In the example shown in FIG. 2, one more battery 10 can be attached to the charging device 9.

[0016] A user can remove the battery 10 from the charging device 9 in the car room 8. The user can then carry the battery 10 removed from the charging device 9, i.e., the battery 10 charged by the charging device 9, out of the car 1. The battery 10 is portable, and is large and heavy enough for a user to carry it through the entrance and exit of the car 1.

[0017] Fig. 3 is a diagram for explaining the function of the elevator device. As shown in Fig. 3, power to the control device 6 is basically supplied from a commercial power source 11. The control device 6 includes an operation control unit 21, a charge / discharge control unit 22, and an interruption detection unit 23. The operation control unit 21 controls automatic operation. Automatic operation is an operation for causing the car 1 to respond sequentially to registered calls. The calls include hall calls and car calls.

[0018] Automatic operation includes power running and regenerative operation. Power running is operation when the torque output direction of the hoisting machine 5 and the direction in which the sheave of the hoisting machine 5 rotate are the same. The weight of the counterweight 2 is set in advance so that it matches the weight of the car 1 when a load of, for example, 45 to 50% of the rated load acts on the car 1. In other words, if there is no passenger in the car 1, the car 1 is lighter than the counterweight 2. In such a case, operation to lower the car 1 when there is no passenger in the car 1 is power running.

[0019] On the other hand, regenerative operation is an operation in which the torque output direction of the hoisting machine 5 and the direction in which the sheave of the hoisting machine 5 rotates are different. For example, an operation in which the car 1 is raised when there is no user in the car 1 is regenerative operation. In regenerative operation, the hoisting machine 5 functions as a generator. In the example shown in this embodiment, if the battery 10 is attached to the charging device 9, the battery 10 is charged by the power generated in regenerative operation, i.e., the regenerative power by the hoisting machine 5. The function of charging the battery 10 is realized by the charge / discharge control unit 22.

[0020] The interruption detection unit 23 detects that power from the commercial power supply 11 has been cut off. For example, if a power outage occurs in building A or in an area including building A, the interruption detection unit 23 detects that power from the commercial power supply 11 has been cut off. A cable 14 is connected between the car 1 and the control device 6. When the interruption detection unit 23 detects that power from the commercial power supply 11 has been cut off, the charge / discharge control unit 22 supplies power from the battery 10 attached to the charging device 9 to equipment required for operation. Such equipment includes the hoisting machine 5 and the control device 6. The battery 10 functions as an emergency power source for the elevator system in the event of a power outage.

[0021] Furthermore, as described above, the battery 10 is detachable from the charging device 9, and the user can remove the battery 10 from the charging device 9 and carry it out of the car 1. Therefore, in the example shown in this embodiment, the user can use the battery 10 for a specific device other than the elevator device.

[0022] For example, the battery case 12 is disposed outside the car 1. The battery case 12 is preferably provided in a location not related to the elevator device. The battery 10 is detachable from the battery case 12. When the battery 10 is attached to the battery case 12, power is supplied from the battery 10 to a specific device. Hereinafter, the device will also be referred to as an external device.

[0023] As an example, the external device is an electric bicycle. When a user goes out on the electric bicycle, the user removes the battery 10 from the charging device 9 in the car room 8. The user gets off the car 1 while holding the battery 10 removed from the charging device 9, and attaches the battery 10 to a battery case 12 provided on the electric bicycle. This allows the power from the battery 10 to assist the rotation of the pedals of the electric bicycle.

[0024] Furthermore, when the user returns to building A on the electric bicycle, he or she removes the battery 10 from the battery case 12 of the electric bicycle. Then, the user gets into the car 1 with the battery 10 removed from the electric bicycle. Once in the car 1, the user attaches the battery 10 to the charging device 9 in the car room 8. The user gets out of the car 1 with the battery 10 still attached to the charging device 9. The next time the user uses the electric bicycle, he or she simply removes the battery 10 from the charging device 9 again.

[0025] As another example, the external device may be a shared facility installed in building A. The shared facility is a facility that is used jointly by people using building A. The shared facility includes a water pump, a lamp in the entrance hall, a lamp in the emergency staircase, etc. When power from battery 10 is supplied to the shared facility, battery case 12 is installed in building A.

[0026] In the example shown in this embodiment, the battery 10 can be charged by the charging device 9, and the user can use the battery 10 outside the car 1 as well.

[0027] If building A is an apartment building, the elevator system is often used by a small number of people. For example, if only one person is in car 1, car 1 will be lighter than counterweight 2. That is, in such an elevator system, car 1 is often operated with a weight lighter than counterweight 2. In such an elevator system, charging device 9 may be used to increase the weight on the car 1 side. In an elevator system installed in an apartment building or the like, it is also possible to improve energy efficiency by using charging device 9 as a virtual weight on the car 1 side.

[0028] 4 is a diagram showing an example of hardware resources of the control device 6. The control device 6 includes, as hardware resources, a processing circuit 30 including a processor 31 and a memory 32. The processing circuit 30 may include multiple processors 31. The processing circuit 30 may include multiple memories 32.

[0029] In this embodiment, the units denoted by the reference numerals 21 to 23 represent functions possessed by the control device 6. The functions of the units denoted by the reference numerals 21 to 23 can be realized by software written as a program, firmware, or a combination of software and firmware. The program is stored in a memory 32. The control device 6 realizes the functions of the units denoted by the reference numerals 21 to 23 by executing the program stored in the memory 32 using a processor 31. A semiconductor memory or the like can be used as the memory 32.

[0030] Fig. 5 is a diagram showing another example of hardware resources of the control device 6. In the example shown in Fig. 5, the control device 6 includes a processing circuit 30 including a processor 31, a memory 32, and dedicated hardware 33. Fig. 5 shows an example in which some of the functions of the control device 6 are realized by the dedicated hardware 33. All of the functions of the control device 6 may also be realized by the dedicated hardware 33. The dedicated hardware 33 may be a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof. [Explanation of symbols]

[0031] 1 car, 2 counterweight, 3 elevator shaft, 4 rope, 5 hoist, 6 control device, 7 landing, 8 car room, 9 charging device, 10 battery, 11 commercial power supply, 12 battery case, 13 machine room, 14 cable, 21 operation control unit, 22 charge / discharge control unit, 23 interruption detection unit, 30 processing circuit, 31 processor, 32 memory, 33 dedicated hardware

Claims

1. a car having a charging device; Counterweight and a rope for suspending the car and the counterweight in the elevator shaft; a hoist around which the rope is wound; and a battery that is detachable from the charging device and can be carried outside the car, and that is charged by regenerative power generated by the hoist when attached to the charging device; Equipped with the battery removed from the charging device is detachably attached to a battery case disposed outside the car; When the battery is attached to the battery case, power is supplied from the battery to a specific external device.

2. Further comprising a control device that receives power from a commercial power source and controls the hoisting machine, 2. The elevator apparatus according to claim 1, wherein when power from the commercial power source to the control device is cut off, power is supplied to the control device from the battery attached to the charging device.

3. 3. The elevator apparatus according to claim 1, wherein the external device is an electric bicycle.

4. The battery case is provided in a building in which the elevator shaft is formed, The elevator apparatus according to claim 1 or 2, wherein the external device is a shared facility provided in the building.

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