阅读说明：本技术 救援设备和电梯 (Rescue equipment and elevator ) 是由 A.埃卢马莱 K.萨拉瓦南 R.莫汉 N.南德哈库马兰 Ps.贾亚拉姆 于 2021-04-22 设计创作，主要内容包括：本发明涉及一种电梯,其包括：电梯轿厢(1),其可在电梯井道(4)中垂直移动；电梯提升机械(9),其设置在电梯井道(4)中；紧急救援装置(2),其设置在电梯井道(4)中；以及电梯控制器(3),其设置在电梯层站(5)处。通信信道(6)布置在电梯控制器(3)与紧急救援装置(2)之间。(The invention relates to an elevator, comprising: an elevator car (1) vertically movable in an elevator hoistway (4); an elevator hoisting machine (9) provided in an elevator hoistway (4); an emergency rescue device (2) provided in an elevator hoistway (4); and an elevator controller (3) provided at an elevator landing (5). A communication channel (6) is arranged between the elevator control (3) and the emergency rescue device (2).)

1. An elevator, comprising:

an elevator car (1) vertically movable in an elevator hoistway (4);

an elevator hoisting machine (9) provided in an elevator hoistway (4);

an emergency rescue device (2) provided in an elevator hoistway (4);

an elevator controller (3) provided at an elevator landing (5);

a communication channel (6) between the elevator controller (3) and the emergency rescue device (2);

Wherein the emergency rescue apparatus (2) comprises:

a battery (7) used as a voltage supply for the emergency rescue device (2) during an elevator operation abnormality;

a power unit (8) connected to the battery (7) and configured to supply at least one of an elevator hoisting motor (19) and a hoisting machinery brake (10) with power to reposition the elevator car (1) at the landing (5) during an elevator operation anomaly;

a sensor array (11) comprising at least one sensor configured to measure one or more operating parameters of the emergency rescue apparatus (2);

a processing unit (12) connected to the sensor array (11) and configured to

Generating a rescue device performance indicator from information received from the sensor array (11), and

the performance indicators are sent to the elevator controller (3).

2. Elevator according to claim 1, wherein the emergency rescue device comprises a contactor (17) for separating the emergency rescue device (2) from the mains, the operating parameter of the emergency rescue device (2) being one of a contactor state, a state of a power transistor of the power unit (8), a temperature of the power unit (8), a battery current, a battery voltage, a battery power, an output voltage of the power unit (8), an output current of the power unit (8), a phase failure of the power unit (8).

3. Elevator according to claim 1 or 2, wherein the elevator controller (3) is configured to display a fault code based on a performance index.

4. Elevator according to any of claims 1-3, wherein the elevator controller comprises a manual input (14) for receiving a commissioning command,

and wherein the elevator controller (3) is configured to send a power supply command to the power unit (8) in response to receiving a commissioning command.

5. Elevator according to any of claims 1-4, wherein the elevator controller (3) comprises a remote connection (15) to the cloud or to a remote server (16).

6. Elevator according to claim 5, wherein the elevator controller (3) is configured to send the performance indicator or the sequence of performance indicators to a cloud or a remote server (16) via a remote connection (15) to schedule a service request before a failure of the emergency rescue device (2).

7. Elevator according to claim 5 or 6, wherein the elevator controller (3) is configured to receive a fault code or a maintenance instruction as a response from a cloud or a remote server (16) and to display the received fault code or maintenance instruction.

Technical Field

The subject matter described herein relates to elevators and, more particularly, to elevator rescue devices.

Background

Sometimes, an operational anomaly such as a power failure interrupts elevator travel, causing the elevator car to stop between landings. In such a case, the elevator car needs to be relocated to the landing to release passengers from the car. This operation is called a rescue operation.

In a rescue operation, the hoisting motor and/or the hoisting machinery brake can be powered by a battery-powered emergency rescue device to move the car. In machine roomless elevators, an emergency rescue apparatus is typically disposed within the elevator hoistway, e.g., at an upper portion of the hoistway, near the elevator hoisting machinery. In that case, the rescue device is not easily accessible. In case of a malfunction, service personnel must enter the elevator shaft and try to commission the rescue device, e.g. from the top of the elevator car.

Disclosure of Invention

The object of the present invention is to at least partly solve the above problems. The invention therefore discloses an elevator according to claim 1. Some preferred embodiments of the invention are described in the dependent claims. Inventive embodiments and inventive combinations of various embodiments are set forth in the description and drawings.

According to the present invention, an elevator is provided. The elevator includes: the emergency rescue system comprises an elevator car vertically movable in an elevator hoistway, an elevator hoisting machine disposed in the elevator hoistway, an emergency rescue device disposed in the elevator hoistway, an elevator controller disposed at an elevator landing, and a communication channel between the elevator controller and the emergency rescue device. The emergency rescue device includes: the elevator system comprises a battery for use as a voltage supply for the emergency rescue device during an elevator operation anomaly, and a power unit connected to the battery and configured to power at least one of an elevator hoist motor and a hoist machinery brake to reposition the elevator car at a landing during the elevator operation anomaly. The emergency rescue apparatus further includes: the emergency rescue device comprises a sensor array comprising at least one sensor configured to measure one or more operating parameters of the emergency rescue device, and a processing unit connected to the sensor array and configured to generate a rescue device performance indicator based on information received from the sensor array and to send the performance indicator to the elevator controller. This means that commissioning of the emergency rescue apparatus can be performed from a landing outside the elevator shaft.

Preferably the elevator control is arranged near the landing door or inside the landing door frame.

According to an embodiment, the emergency rescue device comprises a contactor for separating the emergency rescue device from the mains. The operating parameter of the emergency relief device is one of a contactor state, a state of a power transistor of the power cell, a temperature of the power cell, a battery current, a battery voltage, a battery power, an output voltage of the power cell, an output current of the power cell, a phase fault of the power cell.

According to an embodiment, the elevator controller is configured to display a fault code based on the performance indicator. Thus, the elevator control may comprise a display or it may be connected with an external display device, such as a mobile device, to display information.

According to an embodiment, the elevator controller comprises a manual input for receiving a commissioning command, the elevator controller being configured to send a power supply command to the power unit in response to receiving the commissioning command. This may mean that commissioning commands for the emergency rescue apparatus may be provided from a landing outside the elevator hoistway.

According to an embodiment, the elevator controller comprises a remote connection to the cloud or to a remote server.

According to an improvement, the elevator controller is configured to send the performance indicator to the cloud or to a remote server via a remote connection. The cloud or remote server may perform computing operations based on the performance indicators or a sequence of performance indicators to diagnose degraded conditions and schedule service requests before the emergency rescue device fails. Thus, the degraded condition of the emergency rescue apparatus can be diagnosed early, and sufficient service can be provided to minimize the downtime of the elevator.

According to another refinement, the elevator controller is configured to receive a fault code or a maintenance instruction as a response from the cloud or a remote server and to display the received fault code or maintenance instruction. Thus, the elevator can be remotely diagnosed in a remote server or cloud according to the performance indicators, and the diagnosis result can be used by service personnel on the elevator site.

Drawings

In the following, the invention will be described in more detail by means of some examples of embodiments of the invention, which in themselves do not limit the scope of application of the invention, with reference to the accompanying drawings.

Fig. 1 presents a diagrammatic view of an elevator.

Fig. 2 shows a block diagram of an emergency rescue apparatus.

Detailed Description

For the sake of clarity, only those features which are considered necessary for the understanding of the invention are shown in fig. 1 and 2. Thus, for example, certain components/functions well known in the art may not be shown.

Fig. 1 shows an elevator according to an exemplary embodiment. The elevator comprises an elevator car 1 and a counterweight (not shown) suspended on hoisting ropes. The hoisting ropes are run via the traction sheave of the elevator hoisting machine 9. The hoisting machine 9 has an electric motor 19, preferably a permanent magnet motor, which provides a drive torque to move the elevator car 1. The inverter 18 generates a power signal for operating the motor 19. The hoisting machine 9 comprises a brake 10, which brake 10 is controlled by an actuator, such as an electromagnetic actuator. The brake 10 is engaged to keep the elevator car 1 stationary in the elevator hoistway and the brake 10 is opened to enable movement of the elevator car 1. Opening of the brake 10 occurs by supplying electrical power to the actuator. The brake 10 is engaged by interrupting the power supply. In normal operation, the electrical power for the motor 19 and the brake 10 is supplied from the mains. The control commands for operating the elevator are generated by an elevator controller 3.

In some abnormal situations, e.g. during a power outage, it is necessary to relocate the elevator car 1 to the landing 5. The elevator of fig. 1 thus comprises an emergency rescue apparatus 2.

The emergency rescue device 2, the elevator hoisting machine 9, and the inverter 18 are disposed in the upper part of the elevator shaft 4. The elevator controller 3 is provided at an elevator landing 5. A communication channel 6 is arranged between the elevator controller 3 and the emergency rescue device 2. The communication channel 6 may take the form of any suitable wired or wireless communication bus, such as a serial data bus or a parallel data bus. Exemplary embodiments of the communication bus are a CAN bus, a LON bus, and an ethernet bus. Via the communication channel 6, control commands and/or commissioning commands can be provided from the elevator controller 3 to the emergency rescue device 2. Furthermore, performance information of the rescue device 2 can be provided from the energy rescue device 2 to the elevator controller 3 via the communication channel 6, so that commissioning and/or condition monitoring of the emergency rescue device 2 can be performed from outside the elevator hoistway 4.

The emergency rescue device 2 comprises a battery 7 which provides a voltage supply for the electronics of the emergency rescue device 2 and a power supply to the hoisting motor 19 and/or the hoisting machinery brake 10 during certain operational anomalies of the elevator.

Turning to fig. 2, the emergency rescue apparatus 2 of fig. 1 includes a power unit 8 connected to a battery 7. The power unit 8 includes power components such as contactors and power transistors. The emergency rescue device 2 further comprises a sensor array 11 and a processing unit 12 connected to the sensor array 11. Sensor array 11 includes at least one sensor configured to measure one or more operating parameters of emergency rescue apparatus 2. The sensor may be an auxiliary contact of the contactor 17, indicating the status of the contactor 17, i.e. the actual open or closed status. The sensor may be a voltage or current meter indicating the state of the power transistor of the power cell 8 (e.g. to determine transistor failure or short circuit). The sensor may be a temperature sensor indicating the temperature of the power unit 8 and/or the battery 7 (e.g. to determine possible overheating of the power unit and/or the battery). The sensor may be a voltage or current meter indicating the voltage or current of the battery 7 (e.g. to determine possible over-or under-voltage of the battery 7 under load conditions or in case of over-current) or may be a power meter indicating the output power of the battery 7 (e.g. the power supply capability of the battery 7). Additionally or alternatively, the sensor may be a voltage or current meter indicating the output voltage or current of the power cell 8, or-if the power cell has a multi-phase AC output-indicating a phase fault of the power cell 8.

The processing unit 12 is configured to generate a rescue device performance indicator based on information received from the sensor array 11 and information addressing at least some of the above-mentioned drawbacks. Furthermore, the processing unit 12 is configured to send the performance indicators to the elevator controller 3. The elevator controller 3 may be configured to display a fault code based on the performance indicators. The elevator control 3 may comprise a display or it may be connected with an external display device, such as a mobile device, to display information.

According to an embodiment, the drive units (e.g. the motor inverter 18 and the brake control unit) of the elevator hoisting machine are part of the emergency rescue apparatus 2. In particular, the drive unit is configured to supply electric power from the battery 7 to the lift mechanical brake 10 and the electric motor 19 when an operation abnormality is determined. Thus, the emergency rescue device 2 may comprise a contactor 17 or relay for separating the drive unit from the mains and connecting with the battery 7 in case of an operational anomaly.

According to an alternative embodiment, the emergency rescue device 2 is a unit separate from the drive unit.

According to a refinement, the elevator controller 3 comprises a remote connection 15 to the cloud or to a remote server 16. Such a remote connection may be an internet connection via a router, or a wireless cellular network. The elevator controller 3 is configured to send the performance indicator or the sequence of performance indicators to the cloud or remote server 16 via the remote connection 15 to diagnose degraded operational conditions and schedule service requests before the emergency rescue device 2 fails. This can improve the availability of elevator service.

According to an embodiment, the elevator controller 3 is configured to receive relevant fault codes or maintenance instructions from the cloud or remote server 16 as a response and to display the received fault codes or maintenance instructions to facilitate the commissioning work of the service personnel.

According to a refinement, the elevator control 3 comprises a manual input 14, such as a touch screen, a button group or a keyboard, for receiving a commissioning command. The elevator controller 3 is configured to send a power supply command to the power station 8 in response to receiving a commissioning command. This allows testing of the operation of the emergency rescue apparatus 2.

The invention has been described above with the aid of exemplary embodiments. It is obvious to the person skilled in the art that the invention is not limited to the embodiments described above, and that many other applications are possible within the scope of the inventive concept defined by the claims.