Elevator power failure emergency rescue device, method, elevator

Abstract

The application discloses an elevator power-off emergency rescue device, method and elevator. The device comprises a control module, a storage battery, a voltage boosting module, an auxiliary source module and a relay module. The auxiliary source module is connected with commercial power and connected with the control module through the relay module. The control module is used for adjusting the state of the relay in the relay module according to the state of the commercial power, and determining whether to connect the commercial power to the elevator control cabinet or connect the storage battery and the voltage boosting module to the elevator control cabinet. The storage battery is connected with a frequency converter of the elevator control cabinet through the relay module. The storage battery is connected with the voltage boosting module. The voltage boosting module is connected with an integrated power source of the elevator control cabinet through the relay module. The application is beneficial to reducing the complexity of the emergency rescue equipment and improving the working reliability. The application can be widely applied in the elevator control technical field.

Description

Technical Field

[0001] This invention relates to the field of elevator control technology, and in particular to an elevator power outage emergency rescue device, method, and elevator. Background Technology

[0002] Elevators, as vertical transportation tools, are widely used in modern buildings. However, during elevator operation, emergencies such as power outages may occur, leading to elevator cars becoming trapped, causing panic and inconvenience to passengers, and even endangering personal safety. Therefore, elevators need to be equipped with power outage emergency rescue devices to open the trapped elevator car in the event of a mains power failure.

[0003] In related technologies, most elevator emergency rescue devices use a transformer to step up the low-voltage DC power from a storage battery to high-voltage DC, and then use an inverter to convert the high-voltage DC to single-phase AC220V or three-phase AC380V. Emergency rescue devices require inverter circuits to convert DC to AC, resulting in a long energy transfer path and problems such as complex equipment, high cost, and difficulties in installation and maintenance. Summary of the Invention

[0004] The purpose of this invention is to at least partially solve one of the technical problems existing in the prior art.

[0005] Therefore, the purpose of this invention is to provide a simple elevator power outage emergency rescue device, method, and elevator.

[0006] To achieve the above-mentioned technical objectives, the technical solutions adopted in the embodiments of the present invention include the following aspects:

[0007] On one hand, this invention provides an elevator power outage emergency rescue device, including: a control module, a battery, a booster module, an auxiliary power source module, and a relay module. The auxiliary power source module is connected to the mains power and is connected to the control module through the relay module. The control module is used to adjust the state of the relays in the relay module according to the mains power status and determine whether to connect the mains power to the elevator control cabinet or connect the battery and the booster module to the elevator control cabinet. The battery is connected to the inverter of the elevator control cabinet through the relay module, and the battery is connected to the booster module. The booster module is connected to the integrated power supply of the elevator control cabinet through the relay module. This application realizes emergency power supply for elevators through a battery and a booster module, alleviating the problem of complex equipment using inverters. At the same time, this application realizes emergency power supply for elevators through a control module and a relay module, making control simple and reliable. This application helps to reduce the complexity of emergency rescue equipment and improve operational reliability.

[0008] In addition, the elevator power outage emergency rescue device according to the above embodiments of the present invention may also have the following additional technical features:

[0009] Furthermore, in the elevator power outage emergency rescue device of this embodiment of the invention, the device further includes an AC contactor, which includes a first normally open contact, a second normally open contact, a third normally open contact, a fourth normally open contact, and a fifth normally open contact; the first phase of the mains power is connected to the first phase of the frequency converter through the first normally open contact, the second phase of the mains power is connected to the second phase of the frequency converter through the second normally open contact, the third phase of the mains power is connected to the third phase of the frequency converter through the third normally open contact and the fifth normally open contact, the third phase of the mains power is also connected to the live wire of the integrated power supply through the third normally open contact, and the neutral wire of the mains power is connected to the neutral wire of the integrated power supply through the fourth normally open contact.

[0010] Further, in one embodiment of the present invention, the AC contactor includes a first coil and a first normally closed contact; the relay module includes a first relay, a second relay, and a third relay; the first relay includes a second coil, a second normally closed contact, a sixth normally open contact, and a seventh normally open contact; the second relay includes a third coil, a third normally closed contact, an eighth normally open contact, and a ninth normally open contact; the third relay includes a fourth coil and a fourth normally closed contact; the positive terminal of the battery is connected to the first phase of the frequency converter through the sixth normally open contact, and the negative terminal of the battery is connected to the second phase of the frequency converter through the seventh normally open contact; the first terminal of the boost module is connected to the live wire of the integrated power supply through the eighth normally open contact. The second end of the module is connected to the neutral wire of the integrated power supply through the ninth normally open contact; the first end of the auxiliary power module is connected to the second port of the control module through the fourth coil; the first end of the auxiliary power module is also connected to the first end of the first normally closed contact, the second end of the first normally closed contact is connected to the first port of the control module through the second coil, and the second end of the first normally closed contact is also connected to the first port of the control module through the third coil; the first phase of the mains power is connected to the first end of the third normally closed contact through the first coil, the second end of the third normally closed contact is connected to the first end of the fourth normally closed contact through the second normally closed contact, and the second end of the fourth normally closed contact is connected to the second phase of the mains power.

[0011] Furthermore, in one embodiment of the present invention, the control module is configured to: if the mains power is normal, determine that the signal output by the second port is in a first state, so that the fourth coil is de-energized and the first coil is energized; if the mains power is abnormal, determine that the signal output by the second port is in a second state and the signal output by the first port is in a second state, so that the fourth coil is energized, the first coil is de-energized, the second coil is energized, and the third coil is energized.

[0012] Furthermore, in one embodiment of the present invention, the third port of the control module is connected to the first terminal of the activation switch, and the fourth port of the control module is connected to the second terminal of the activation switch; the control module is used to turn on or off the emergency power supply for elevator power outages via the activation switch.

[0013] Furthermore, in one embodiment of the present invention, the fifth port of the control module is connected to the first end of the main control unit of the elevator control cabinet, and the sixth port of the control module is connected to the second end of the main control unit.

[0014] The control module is used to: if the mains power is abnormal, send an emergency output signal to the main control unit to perform elevator power outage emergency rescue; if the elevator power outage emergency rescue is completed, receive the stop output signal from the main control unit, and determine that the signal output from the first port of the control module is in the first state and the signal output from the second port is in the first state, so as to de-energize the second coil and the third coil.

[0015] On the other hand, embodiments of the present invention propose an elevator power outage emergency rescue method, applied to the aforementioned elevator power outage emergency rescue device, the method comprising:

[0016] Adjust the state of the relays in the relay module according to the mains power status, and determine whether to connect the mains power to the elevator control cabinet, or determine whether to connect the battery to the frequency converter of the elevator control cabinet and the boost module to the integrated power supply of the elevator control cabinet.

[0017] Furthermore, the elevator power outage emergency rescue method of this embodiment of the invention further includes:

[0018] If the mains power is normal, the signal output from the second port of the control module is determined to be in the first state, so that the fourth coil of the third relay is de-energized and the first coil of the AC contactor is energized;

[0019] If the mains power is abnormal, the signal output from the second port of the control module is determined to be in the second state, and the signal output from the first port is determined to be in the second state, so that the fourth coil is energized, the first coil is de-energized, the second coil of the second relay is energized, and the third coil of the third relay is energized.

[0020] Furthermore, the elevator power outage emergency rescue method of this embodiment of the invention further includes:

[0021] If the mains power is abnormal, an emergency output signal is sent to the main control unit of the elevator control cabinet to execute the elevator power outage emergency rescue;

[0022] If the elevator power outage emergency rescue is completed, the stop output signal of the main control unit is received, and the signal output from the first port of the control module is determined to be in the first state and the signal output from the second port is determined to be in the first state, so that the second coil of the second relay is de-energized and the third coil of the third relay is de-energized.

[0023] On the other hand, embodiments of the present invention provide an elevator, including the aforementioned elevator power outage emergency rescue device.

[0024] On the other hand, embodiments of the present invention provide an elevator power outage emergency rescue system, comprising:

[0025] At least one processor;

[0026] At least one memory for storing at least one program;

[0027] When the at least one program is executed by the at least one processor, the at least one processor implements the above-described elevator power outage emergency rescue method.

[0028] On the other hand, embodiments of the present invention provide a storage medium storing a processor-executable program, which, when executed by a processor, is used to implement the above-described elevator power outage emergency rescue method.

[0029] The device provided in this invention includes: a control module, a battery, a boost module, an auxiliary power supply module, and a relay module. The auxiliary power supply module is connected to mains power and is connected to the control module through the relay module. The control module is used to adjust the state of the relays in the relay module according to the mains power status and determine whether to connect the mains power to the elevator control cabinet or connect the battery and the boost module to the elevator control cabinet. The battery is connected to the inverter of the elevator control cabinet through the relay module, and the battery is connected to the boost module. The boost module is connected to the integrated power supply of the elevator control cabinet through the relay module. This application realizes emergency power supply for elevators through a battery and a boost module, alleviating the problem of complex equipment using inverters. Simultaneously, this application realizes emergency power supply for elevators through a control module and a relay module, making control simple and reliable. This application helps reduce the complexity of emergency rescue equipment and improves operational reliability. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following description is provided with accompanying drawings of the relevant technical solutions in the embodiments of the present invention or the prior art. It should be understood that the accompanying drawings described below are only for the purpose of clearly illustrating some embodiments of the technical solutions of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0031] Figure 1 A schematic diagram of one embodiment of the elevator power outage emergency rescue device provided by the present invention;

[0032] Figure 2 A schematic diagram illustrating the principle of an embodiment of the interlocking of an AC contactor and a relay module provided by the present invention;

[0033] Figure 3 A schematic diagram of one embodiment of the drive control board provided by the present invention;

[0034] Figure 4 A detailed structural schematic diagram of one embodiment of the elevator power outage emergency rescue device provided by the present invention;

[0035] Figure 5 This is a flowchart illustrating one embodiment of the elevator power outage emergency rescue method provided by the present invention. Detailed Implementation

[0036] The embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The step numbers in the following embodiments are set only for ease of explanation, and there is no limitation on the order between the steps. The execution order of each step in the embodiments can be adaptively adjusted according to the understanding of those skilled in the art.

[0037] Elevators, as vertical transportation tools, are widely used in modern buildings. However, during elevator operation, emergencies such as power outages may occur, leading to elevator car entrapment, causing panic and inconvenience to passengers, and even endangering personal safety. Most existing elevator emergency rescue devices step up the low-voltage DC power from the energy storage battery to high-voltage DC power through a transformer, and then use an inverter to convert the high-voltage DC power into single-phase AC220V or three-phase AC380V.

[0038] Existing elevator emergency rescue devices require the use of inverter circuits to convert DC to AC, resulting in long energy transmission links and problems such as complex equipment, high cost, and difficulties in installation and maintenance.

[0039] To address the above issues, this application provides an elevator power outage emergency rescue device and system, which solves the problems of long energy transmission links, complex equipment, high cost, and difficult installation and maintenance in existing elevator emergency rescue device technologies.

[0040] The following describes in detail, with reference to the accompanying drawings, an elevator power outage emergency rescue device and implementation method proposed according to an embodiment of the present invention. First, with reference to the accompanying drawings, an elevator power outage emergency rescue device proposed according to an embodiment of the present invention is described.

[0041] Figure 1 This is a schematic diagram of an elevator power outage emergency rescue device according to an embodiment of the present invention. The system specifically includes:

[0042] Control module, battery, boost module, auxiliary power module, relay module;

[0043] The auxiliary power source module is connected to the mains power supply and is connected to the control module through the relay module.

[0044] The control module is used to adjust the state of the relays in the relay module according to the mains power status, and to determine whether to connect the mains power to the elevator control cabinet, or to connect the battery and the boost module to the elevator control cabinet.

[0045] The battery is connected to the frequency converter of the elevator control cabinet through the relay module. The battery is connected to the boost module, and the boost module is connected to the integrated power supply of the elevator control cabinet through the relay module.

[0046] In this application, the control module is also used to control the operating state of the boost module. In some embodiments, refer to... Figure 2 As shown, the relays in the relay module interlock between the mains power input and the inputs of the battery and boost module, improving operational reliability. (Refer to...) Figure 3 As shown, the auxiliary power source module is used to supply power to the control module and the relay module.

[0047] Furthermore, referring to Figure 2As shown in the figure, the elevator power outage emergency rescue device of this embodiment of the invention further includes an AC contactor, which includes a first normally open contact, a second normally open contact, a third normally open contact, a fourth normally open contact, and a fifth normally open contact. The first phase of the mains power is connected to the first phase of the frequency converter through the first normally open contact, the second phase of the mains power is connected to the second phase of the frequency converter through the second normally open contact, the third phase of the mains power is connected to the third phase of the frequency converter through the third normally open contact and the fifth normally open contact, the third phase of the mains power is also connected to the live wire of the integrated power supply through the third normally open contact, and the neutral wire of the mains power is connected to the neutral wire of the integrated power supply through the fourth normally open contact.

[0048] Further, in one embodiment of the present invention, the AC contactor includes a first coil and a first normally closed contact; the relay module includes a first relay, a second relay, and a third relay; the first relay includes a second coil, a second normally closed contact, a sixth normally open contact, and a seventh normally open contact; the second relay includes a third coil, a third normally closed contact, an eighth normally open contact, and a ninth normally open contact; the third relay includes a fourth coil and a fourth normally closed contact; the positive terminal of the battery is connected to the first phase of the frequency converter through the sixth normally open contact, and the negative terminal of the battery is connected to the second phase of the frequency converter through the seventh normally open contact; the first terminal of the boost module is connected to the live wire of the integrated power supply through the eighth normally open contact. The second end of the block is connected to the neutral wire of the integrated power supply through the ninth normally open contact; the first end of the auxiliary power module is connected to the second port of the control module through the fourth coil; the first end of the auxiliary power module is also connected to the first end of the first normally closed contact, the second end of the first normally closed contact is connected to the first port of the control module through the second coil, and the second end of the first normally closed contact is also connected to the first port of the control module through the third coil; the first phase of the mains power is connected to the first end of the third normally closed contact through the first coil, the second end of the third normally closed contact is connected to the first end of the fourth normally closed contact through the second normally closed contact, and the second end of the fourth normally closed contact is connected to the second phase of the mains power.

[0049] Furthermore, in one embodiment of the present invention, the control module is configured to: if the mains power is normal, determine that the signal output by the second port is in a first state, so that the fourth coil is de-energized and the first coil is energized; if the mains power is abnormal, determine that the signal output by the second port is in a second state and the signal output by the first port is in a second state, so that the fourth coil is energized, the first coil is de-energized, the second coil is energized, and the third coil is energized.

[0050] Reference Figure 4As shown, when the mains power is abnormal, the energizing state of each relay is adjusted by regulating the states of the first and second ports, thereby controlling the power supply to the elevator. In this application, the first port is... Figure 4 The main control module has an SB control port, and the second port is the SY port of the active module. A switching unit is also provided between the first port and the fourth coil. For example, it can be a switching circuit composed of transistors, which realizes the adjustment of the energization state of the fourth coil by the output signal state of the first port. The first state in this application can be a high level or a low level, and the same applies to the second state. By setting an appropriate switching unit, the correspondence between the port output state of the control module and the energization state of the fourth coil is set. This application does not specifically limit the correspondence.

[0051] In view of the problems of long energy transmission links, complex equipment, high cost, and difficult installation and maintenance in existing elevator emergency rescue devices, this application provides an elevator power outage emergency rescue device and system to solve the problems of long energy transmission links, complex equipment, high cost, and difficult installation and maintenance in existing elevator emergency rescue device technologies.

[0052] To achieve the above objectives, the detailed plan is as follows:

[0053] like Figure 1 As shown, the mains power R / S / T / N (i.e., the first phase, second phase, third phase and neutral line of the mains power in this application; the first phase in this application can be any one of the R / S / T phases, and the second and third phases can also be any one of the R / S / T phases) is connected to the power outage emergency rescue device from the Ra / Sa / Ta / Na terminals. The power outage emergency rescue device outputs power to the frequency converter of the control cabinet from Rb / Sb / Tb, and outputs power to the integrated power supply of the control cabinet from another T2b / Nb phase. When the mains power is normal, the mains power R / S / T / N is supplied to the frequency converter of the control cabinet via the power outage emergency rescue device, and to the integrated power supply of the control cabinet, it is supplied to the TN phase AC mains power (i.e., the live wire and neutral line of the integrated power supply in this application).

[0054] When the mains power is abnormal, the SA contactor inside the power outage emergency rescue device (i.e., the AC contactor in this application) disconnects the input from the mains power R / S / T / N to the control cabinet. The low-voltage DC power output from the internal battery of the power outage emergency rescue device is supplied to the R1 and S1 terminals of the frequency converter in the control cabinet (i.e., any two of the first, second, and third phases of the frequency converter in this application). The low-voltage DC power from the internal battery of the power outage emergency rescue device is boosted to high-voltage DC power by the boost module and then output to the integrated power supply of the control cabinet. Thus, the frequency converter in the control cabinet is directly supplied with DC power from the battery, eliminating the need for boosting and inversion. The integrated power supply of the control cabinet is supplied with high-voltage DC power boosted from the battery DC power, eliminating the need for inversion. This reduces intermediate energy transfer processes, improves utilization efficiency, and effectively reduces costs.

[0055] like Figure 2 As shown, the mains power R / S / T / N are respectively connected to the normally open terminals 5 / 7 / 9 / 11 (i.e., the first normally open contact, the second normally open contact, the third normally open contact, and the fourth normally open contact) of the SA AC contactor in the power outage emergency rescue device. The corresponding normally open contacts 6 / 8 / 10 / 12 of the SA AC contactor are connected to the Rb / Sb / T2b / Nb input terminals of the relay module. Simultaneously, normally open contacts 6 / 8 of the SA AC contactor are connected to the R1 / S1 terminals of the frequency converter in the control cabinet. Normally open contacts 14 (i.e., the fifth normally open contact) and 10 of the SA AC contactor are connected. Normally open contact 13 of the SA AC contactor is connected to the T1 terminal of the frequency converter in the control cabinet. Normally open contacts 12 / 14 of the contactor are connected to the T2 and N1 terminals of the integrated power supply in the control cabinet (i.e., the live and neutral wires of the integrated power supply), respectively. After the coil of the SA AC contactor is energized and closed, normally open contacts 5 / 6, 7 / 8, 9 / 10, 11 / 12, and 13 / 14 also close and short-circuit, connecting the frequency converter and integrated power supply in the control cabinet to the mains power supply R / S / T / N, and the elevator is powered by the mains power supply. After the coil of the SA AC contactor is de-energized and springs open, normally open contacts 5 / 6, 7 / 8, 9 / 10, 11 / 12, and 13 / 14 also spring open and disconnect, disconnecting the frequency converter and integrated power supply in the control cabinet from the mains power supply R / S / T / N.

[0056] The normally open contacts 5 / 7 (i.e., the sixth and seventh normally open contacts) of relay module SB1 (i.e., the first relay) are connected to the R1 / S1 terminals of the inverter in the control cabinet, respectively. The normally open contact 6 / 8 of relay SB1 is connected to the BAT+ and BAT- terminals of the battery (i.e., the positive and negative terminals of the battery). The normally open contacts 5 / 7 (i.e., the eighth and ninth normally open contacts) of relay SB2 (i.e., the second relay) are connected to the T2 / N1 terminals of the integrated power supply in the control cabinet. The normally open contact 6 / 8 of relay SB2 is connected to the DC+ / DC- terminals of the boost module. When relays SB1 and SB2 are closed, the normally open contact 5 of relay SB1... / 6, SB1 relay normally open contact 7 / 8, SB2 relay normally open contact 5 / 6, SB2 relay normally open contact 7 / 8 are also closed and short-circuited, the RS terminal of the control cabinet inverter is connected to the low voltage DC power of the battery, the integrated power supply of the control cabinet is connected to the high voltage DC power of the boost module, and the elevator is powered by the power outage rescue emergency device; when SB1 relay and SB2 relay open, SB1 relay normally open contact 5 / 6, SB1 relay normally open contact 7 / 8, SB2 relay normally open contact 5 / 6, SB2 relay normally open contact 7 / 8 are also opened and disconnected, the power outage cabinet emergency rescue device is disconnected from the control cabinet inverter and integrated power supply.

[0057] SA AC contactor power supply terminal 1 (i.e., the first coil) is connected to the R phase input of the mains power. SA AC contactor power supply terminal 2 is connected to the auxiliary normally closed contact 3 (i.e., the third normally closed contact) of SB2 relay. SB2 relay auxiliary normally closed contact 4 is connected to the auxiliary normally closed contact 4 (i.e., the second normally closed contact) of SB1 relay. SB1 relay auxiliary normally closed contact 3 is connected to the normally closed contact 4 (i.e., the fourth normally closed contact) of SY relay (the third relay). SY relay normally closed contact 3 is connected to the S phase input of the mains power. In this circuit, only when SY relay, SB1 relay, and SB2 relay are all de-energized and their normally closed contacts are all closed can SA AC contactor draw power from the RS phase input of the mains power to close, so that the control cabinet inverter and integrated power supply are connected to the R / S / T / N mains power, and the elevator is powered by the mains power.

[0058] The auxiliary power source module output PVCC (the first port of the auxiliary power source module) is connected to the auxiliary normally closed contact 4 (the first normally closed contact) of the SA AC contactor. The auxiliary normally closed contact 3 of the SA AC contactor is connected to the power supply terminals 1 of SB1 relay and 1 of SB2 relay. The power supply terminals 2 of SB1 relay (the second coil) and 2 of SB2 relay (the third coil) are connected together and then connected to the SB control terminal of the main control module (i.e., the control module). In this circuit, only when the SA AC contactor is de-energized and the first normally closed contact is closed can the main control module energize the coils of SB1 relay and SB2 relay through the SB control terminal, close the normally open contacts, and allow the emergency rescue device of the power outage cabinet to supply power to the frequency converter and integrated power supply of the control cabinet.

[0059] The above connection method, using SA AC contactor, SY relay, SB1 relay, and SB2 relay, achieves hardware-level isolation and interlocking between the battery voltage output, boost module output, and mains RSTN input of the emergency rescue device in the power outage cabinet. This ensures that the low-voltage DC power from the battery and the high-voltage DC power from the boost module are not incorrectly connected to the mains R / S / T / N, which could damage the battery and drive control board.

[0060] The auxiliary power module outputs PVCC to connect to the SY relay power supply terminal 1 (i.e., the fourth coil). The SY relay power supply terminal 2 is connected to the SY control terminal of the main control module. In this way, the main control module can control the normally closed contact of the SY relay to open, thereby disconnecting the power supply to the SA AC contactor and causing its normally open contact to pop open, thus disconnecting the mains power R / S / T / N of the control cabinet inverter and the integrated power supply.

[0061] Furthermore, in one embodiment of the present invention, the third port of the control module is connected to the first terminal of the activation switch, and the fourth port of the control module is connected to the second terminal of the activation switch; the control module is used to turn on or off the emergency power supply for elevator power outages via the activation switch.

[0062] Furthermore, in one embodiment of the present invention, the fifth port of the control module is connected to the first end of the main control unit of the elevator control cabinet, and the sixth port of the control module is connected to the second end of the main control unit.

[0063] The control module is used to: if the mains power is abnormal, send an emergency output signal to the main control unit to perform elevator power outage emergency rescue; if the elevator power outage emergency rescue is completed, receive the stop output signal from the main control unit, and determine that the signal output from the first port of the control module is in the first state and the signal output from the second port is in the first state, so as to de-energize the second coil and the third coil.

[0064] On the other hand, embodiments of the present invention propose an elevator power outage emergency rescue method, applied to the aforementioned elevator power outage emergency rescue device, the method comprising:

[0065] Adjust the state of the relays in the relay module according to the mains power status, and determine whether to connect the mains power to the elevator control cabinet, or determine whether to connect the battery to the frequency converter of the elevator control cabinet and the boost module to the integrated power supply of the elevator control cabinet.

[0066] Furthermore, the elevator power outage emergency rescue method of this embodiment of the invention further includes:

[0067] If the mains power is normal, the signal output from the second port of the control module is determined to be in the first state, so that the fourth coil of the third relay is de-energized and the first coil of the AC contactor is energized;

[0068] If the mains power is abnormal, the signal output from the second port of the control module is determined to be in the second state, and the signal output from the first port is determined to be in the second state, so that the fourth coil is energized, the first coil is de-energized, the second coil of the second relay is energized, and the third coil of the third relay is energized.

[0069] Furthermore, the elevator power outage emergency rescue method of this embodiment of the invention further includes:

[0070] If the mains power is abnormal, an emergency output signal is sent to the main control unit of the elevator control cabinet to execute elevator power outage emergency rescue;

[0071] If the elevator power outage emergency rescue is completed, the stop output signal of the main control unit is received, and the signal output from the first port of the control module is determined to be in the first state and the signal output from the second port is determined to be in the first state, so that the second coil of the second relay is de-energized and the third coil of the third relay is de-energized.

[0072] It is evident that the contents of the above device embodiments are all applicable to the present method embodiments. The specific functions implemented in the present method embodiments are the same as those in the above device embodiments, and the beneficial effects achieved are also the same as those achieved in the above system embodiments.

[0073] The elevator power outage emergency rescue device and method provided in this application will be described in detail below with a specific embodiment:

[0074] like Figure 3 As shown, the drive control board of the power outage emergency rescue device consists of a charging module, an auxiliary power source module, a relay module, a boost module, and a main control module.

[0075] (1) The charging module is connected to the AC input RN terminal. The charging module converts AC220 AC power into DC48V DC power to charge the battery in the drive control board. The charging circuit is connected to the auxiliary power module. When the AC input RN AC power is normal, the charging circuit supplies power to the auxiliary power module.

[0076] (2) Auxiliary power module: The auxiliary power module is connected to the charging module. When the AC mains input RN is normal, it takes DC48V DC from the charging circuit and steps it down to DC12V (PVCC) DC to power the relay module and the main control module. It then steps down the DC12V (PVCC) DC to DC3.3V (DVCC) DC to power the main control module.

[0077] (3) Boost module: When the power outage emergency rescue output is needed, the boost module will boost the DC48V low-voltage DC power of the battery to DC310V high-voltage DC power. The DC310V high-voltage DC power will then supply power to the integrated power supply of the control cabinet through the relay module.

[0078] (4) Relay module: When the mains power is normal, the mains power input R / S / N / T AC power is isolated from the boost module and battery of the power outage emergency rescue device drive control board. When the mains power is abnormal, the relay module will activate and supply the DC48V low-voltage DC power from the battery to the R / S terminal of the frequency converter in the control cabinet, and supply the DC310V high-voltage DC power from the boost module to the T2 / N1 terminal of the integrated power supply in the control cabinet.

[0079] (5) Main control module, the core of the elevator emergency power supply device, controls each unit module to complete the emergency rescue work during power outage.

[0080] (6) Storage battery, rated voltage DC48V, consisting of 4 rated DC12V lead-acid batteries connected in series.

[0081] like Figure 4As shown, the mains power R / S / T / N is connected to the Ra / Sa / Ta / Na terminals of the TB1 terminal block of the power outage emergency rescue device. The Ra / Sa / Ta / Na terminals of the TB1 terminal block are connected to the J6 terminal of the emergency device drive control board of the power outage cabinet to supply power to the drive control board. The Ra / Sa / Ta / Na terminals are connected to the normally open contacts 5 / 7 / 9 / 11 of the SA AC contactor. The normally open contacts 6 / 8 / 10 / 12 of the SA AC contactor are connected to the normally closed contacts 5 / 7 of the SB1 relay and 5 / 7 of the SB2 relay via the J1 terminal of the drive control board. The normally open contact 6 / 8 of the SA AC contactor is connected to the R1 / S1 terminal of the frequency converter in the control cabinet via the TB2 terminal block. The normally open contacts 10 and 14 of the SA AC contactor are connected. Normally open contact 13 of the SA AC contactor is connected to the T1 terminal of the inverter in the control cabinet via the TB2 terminal block; normally open contacts 10 / 12 of the SA AC contactor are connected to the T2 / N1 terminal of the integrated power supply in the control cabinet via the TB2 terminal block; thus, when the SA AC contactor is closed, normally open contacts 5 / 6, 7 / 8, 9 / 10, 11 / 12, and 13 / 14 are also closed and short-circuited, and the inverter in the control cabinet and the integrated power supply are connected to the mains power supply R / S / T / N, and the elevator is powered by the mains power supply; when the SA AC contactor is released, normally open contacts 5 / 6, 7 / 8, 9 / 10, 11 / 12, and 13 / 14 are also released and disconnected, and the inverter in the control cabinet and the integrated power supply are disconnected from the mains power supply R / S / T / N and connected.

[0082] The normally open contacts 5 / 7 of relay SB1 are connected to the R1 / S1 terminal of the inverter in the control cabinet via terminal J1. The normally open contacts 6 / 8 of relay SB1 are connected to the BAT+ / BAT- terminals of the battery (DC 48V). The normally open contacts 5 / 7 of relay SB2 are connected to the T2 / N1 terminal of the integrated power supply in the control cabinet via terminal J1 and terminal block TB2. The normally open contacts 6 / 8 of relay SB2 are connected to the DC+ / DC- terminals of the boost module (DC 310V). When relays SB1 and SB2 are closed, the normally open contacts 5 / 6, 7 / 8, and S1 of relay SB1... Normally open contacts 5 / 6 of relay B2 and normally open contacts 7 / 8 of relay SB2 are also closed and short-circuited. The RS terminal of the inverter in the control cabinet is connected to the low-voltage DC48V power supply of the battery, and the integrated power supply of the control cabinet is connected to the DC310V power supply of the boost module. The elevator is powered by the power outage rescue emergency device. When relays SB1 and SB2 open, normally open contacts 5 / 6, 7 / 8, 5 / 6, and 7 / 8 of relays SB1 and SB2 also open and disconnect. The power outage emergency rescue device of the power outage cabinet is disconnected from the inverter and integrated power supply of the control cabinet.

[0083] SA AC contactor power supply terminal 1 is connected to the R phase input of the mains power. SA AC contactor power supply terminal 2 is connected to the auxiliary normally closed contact 3 of SB2 relay via J7 terminal. SB2 relay auxiliary normally closed contact 4 is connected to the auxiliary normally closed contact 4 of SB1 relay. SB1 relay auxiliary normally closed contact 3 is connected to the normally closed contact 4 of SY relay. SY relay normally closed contact 3 is connected to the S phase input of the mains power via J7 terminal. In this circuit, only when SY relay, SB1 relay, and SB2 relay are all closed can SA AC contactor draw power from the RS phase input of the mains power and close, so that the control cabinet inverter and integrated power supply are connected to the R / S / T / N mains power, and the elevator is powered by the mains power.

[0084] The auxiliary power supply module outputs PVCC (DC12V) via terminal J7 to the auxiliary normally closed contact 4 of the SA AC contactor. The auxiliary normally closed contact 3 of the SA AC contactor is connected to the power supply terminals 1 and 1 of relays SB1 and SB2 via terminal J7. The power supply terminals 2 of relays SB1 and SB2 are connected together and then connected to the SB control terminal of the main control module. In this circuit, the main control module can only close relays SB1 and SB2 through the SB control terminal when the SA AC contactor is open, so that the emergency rescue device of the power outage cabinet can supply power to the frequency converter and integrated power supply of the control cabinet.

[0085] The above connection method using SA AC contactor, SY relay, SB1 relay, and SB2 relay achieves hardware-level isolation and interlocking of the battery voltage output terminal, boost output terminal, and mains RSTN input of the emergency rescue device in the power outage cabinet. This ensures that the DC48V DC power from the battery and the DC310V DC power from the boost module are not incorrectly connected to the mains R / S / T / N, which could damage the battery and drive control board.

[0086] The auxiliary power source module outputs PVCC to connect to the SY relay power supply terminal 1, and the SY relay power supply terminal 2 is connected to the SY control terminal of the main control module. In this way, the main control module can control the SY relay to pop open, thereby disconnecting the power supply to the SA AC contactor and causing it to pop open, thus disconnecting the mains power R / S / T / N of the control cabinet inverter and the integrated power supply.

[0087] The power outage emergency rescue device has an external rocker-type switching switch connected to the J2 terminal of the internal drive control board. When the switch is open, the power outage emergency rescue device shuts off the emergency output function and keeps the mains power R / S / T / N connected to the frequency converter and integrated power supply in the control cabinet. Only when the switch is closed is the power outage emergency rescue device allowed to output emergency power to the frequency converter and integrated power supply in the control cabinet for rescue operations.

[0088] The drive control board of the power outage emergency rescue device is connected to the main control module at terminal J4 and to the main control RS485 of the elevator control cabinet. The drive control board exchanges data with the main control of the elevator control cabinet through the RS485 bus. The drive control board uploads internal status information and power outage emergency output signals through the RS485 bus. The main control of the elevator control cabinet queries the status command of the power outage emergency rescue device and issues stop output signals through the RS485 bus.

[0089] like Figure 5 As shown, when the mains power is abnormal, the main control module first controls the normally closed contact of the SY relay to open, thereby disconnecting the RS phase AC power supply circuit of the SA AC contactor. Then, the SA contactor opens, disconnecting the mains power R / S / T / N inputs of the elevator control cabinet inverter and integrated power supply. The relay module corresponding to terminal J1 of the emergency device drive control board of the power outage cabinet also disconnects the mains power R / S / T / N inputs. Through the SB control port of the main control module, relays SB1 and SB2 are closed, and the DC48V DC power from the battery is connected to the R / S terminal of the elevator control cabinet inverter to supply power. The DC+ / DC- of the boost module is connected to the T2 / N1 terminal of the integrated power supply of the elevator control cabinet. The boost module boosts the DC48V DC power from the battery to DC310V high-voltage DC power to supply power to the elevator control cabinet. The integrated power supply unit provides power to the elevator control cabinet. During a power outage, the emergency rescue device transmits an emergency output signal to the elevator main control unit via RS485. Upon receiving this signal, the elevator main control unit initiates a rescue operation, moving the elevator to the nearest leveling signal and opening the doors to allow passengers to safely exit. After completing the rescue operation, the elevator main control unit sends a stop output signal via RS485. Upon receiving this signal, the emergency rescue device stops its voltage boosting operation and then, through the SB control port of the main control module, opens relays SB1 and SB2, disconnecting the power supply to the elevator control cabinet inverter and integrated power supply unit. Through the SY control port of the main control module, the SY relay closes, waiting for the AC R / S phase to be restored. When this is restored, the SA AC contact closes, allowing the AC R / S / T / N inputs to be reconnected to the control cabinet inverter and integrated power supply unit.

[0090] Reference Figure 1 As shown, the RSTN mains power first enters the emergency power outage rescue device, and then the emergency power outage rescue device outputs power to the elevator control cabinet. (Refer to...) Figure 2 The relay module and AC contactor are hardware-interlocked, ensuring that when the SA AC contactor is closed, relays SB1 and SB2 are de-energized at the hardware level and thus spring open; conversely, when relays SB1 and SB2 are closed, the SA AC contactor is de-energized at the hardware level and thus springs open. This achieves isolation between the RSTN AC power and the battery's BAT+ / BAT- DC power and the boost module's DC+ / DC- DC power. (Refer to...) Figure 3The emergency power outage control board consists of a charging module, an auxiliary power supply module, a relay module, a boost module, and a main control module. The charging module converts the AC mains power (RN phase) into DC power to charge the battery; the auxiliary power supply module further steps down the DC power from the charging module or battery to power the main control module and relay module; the relay module isolates the AC mains power (RSTN) from the internal boost module and battery; the boost module boosts the low-voltage DC power from the battery to high-voltage DC power; and the main control module controls the operation of the boost module and relay module. (Refer to...) Figure 4 In a specific embodiment of the power outage emergency device and system, when the mains power is normal, the SY relay closes, causing the SA contactor to draw power from the mains power RS ​​and close. The mains power RST supplies power to the inverter in the control cabinet via the SA contactor, and the mains power TN supplies power to the integrated power supply of the control cabinet via the SA contactor. When the mains power is abnormal, the SY relay opens, causing the SA contactor to de-energize and open, disconnecting the control cabinet from the mains power. The SB1 and SB2 relays close, supplying the 48V DC power from the battery to the RS input terminal of the inverter in the control cabinet. The 48V DC power from the battery is boosted to 310V DC power by the boost module and supplied to the integrated power supply of the control cabinet. (Refer to...) Figure 5 The elevator power outage emergency device detects the abnormal mains power and outputs DC power to the control cabinet, completing the logical process of emergency rescue of the elevator.

[0091] This application provides an elevator power outage emergency rescue device and system. In the event of a mains power failure, one path supplies DC power from the emergency rescue device's battery to the control cabinet's frequency converter, while the other path boosts the low-voltage DC power from the battery to high-voltage DC power for the control cabinet's integrated power supply, thus achieving the goal of providing power output for emergency rescue. The control cabinet's frequency converter is powered by the battery's DC power, eliminating the need for voltage boosting and inversion. The control cabinet's integrated power supply is also powered by boosting the battery's DC power to high-voltage DC power, eliminating the need for inversion. This reduces intermediate energy transfer processes, improves utilization efficiency, and effectively lowers costs.

[0092] On the other hand, embodiments of the present invention provide an elevator, including the aforementioned elevator power outage emergency rescue device.

[0093] On the other hand, embodiments of the present invention provide an elevator power outage emergency rescue system, comprising:

[0094] At least one processor;

[0095] At least one memory for storing at least one program;

[0096] When the at least one program is executed by the at least one processor, the at least one processor implements the elevator power outage emergency rescue method.

[0097] Similarly, the content of the above method embodiments is applicable to this system embodiment. The specific functions implemented in this system embodiment are the same as those in the above method embodiments, and the beneficial effects achieved are also the same as those achieved in the above method embodiments.

[0098] This invention also provides a computer-readable storage medium storing a processor-executable program, which, when executed by a processor, is used to perform the aforementioned elevator power outage emergency rescue method.

[0099] Similarly, the content of the above method embodiments is applicable to this storage medium embodiment. The specific functions implemented in this storage medium embodiment are the same as those in the above method embodiments, and the beneficial effects achieved are also the same as those achieved in the above method embodiments.

[0100] In some alternative embodiments, the functions / operations mentioned in the block diagrams may not occur in the order shown in the operation diagrams. For example, depending on the functions / operations involved, two consecutively shown blocks may actually be executed substantially simultaneously, or the blocks may sometimes be executed in reverse order. Furthermore, the embodiments presented and described in the flowcharts of this invention are provided by way of example to provide a more comprehensive understanding of the technology. The disclosed methods are not limited to the operations and logic flows presented herein. Alternative embodiments are contemplated in which the order of various operations is altered and sub-operations described as part of a larger operation are executed independently.

[0101] Furthermore, although the invention has been described in the context of functional modules, it should be understood that, unless otherwise stated, one or more of the functions and / or features may be integrated into a single physical device and / or software module, or one or more functions and / or features may be implemented in a separate physical device or software module. It is also understood that a detailed discussion of the actual implementation of each module is unnecessary for understanding the invention. Rather, given the properties, functions, and internal relationships of the various functional modules in the apparatus disclosed herein, the actual implementation of the module will be understood within the scope of conventional skill of an engineer. Therefore, those skilled in the art can implement the invention as set forth in the claims using ordinary techniques without excessive experimentation. It is also understood that the specific concepts disclosed are merely illustrative and not intended to limit the scope of the invention, which is determined by the full scope of the appended claims and their equivalents.

[0102] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several programs to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0103] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequential list of executable programs for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, a program execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can retrieve and execute a program from or in conjunction with such a program execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can mean any means that can contain, store, communicate, propagate, or transmit a program for use by or in conjunction with a program execution system, apparatus, or device.

[0104] More specific examples of computer-readable media (a non-exhaustive list) include: electrical connections (electronic devices) having one or more wires, portable computer disk drives (magnetic devices), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Furthermore, computer-readable media can even be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in computer memory.

[0105] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable program execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0106] In the foregoing description of this specification, references to terms such as "one embodiment," "another embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0107] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

[0108] The above is a detailed description of the preferred embodiments of the present invention. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of the present invention.

Claims

1. An elevator power outage emergency rescue device, characterized in that, The device includes: a control module, a storage battery, a boost module, an auxiliary power source module, and a relay module; The auxiliary power source module is connected to the mains power supply and is connected to the control module through the relay module. The control module is used to adjust the state of the relays in the relay module according to the mains power status, and to determine whether to connect the mains power to the elevator control cabinet, or to connect the battery and the boost module to the elevator control cabinet. The battery is connected to the frequency converter of the elevator control cabinet through the relay module. The battery is connected to the boost module. The boost module is connected to the integrated power supply of the elevator control cabinet through the relay module. The device further includes an AC contactor, which includes a first normally open contact, a second normally open contact, a third normally open contact, a fourth normally open contact, and a fifth normally open contact. The first phase of the mains power is connected to the first phase of the frequency converter through the first normally open contact. The second phase of the mains power is connected to the second phase of the frequency converter through the second normally open contact. The third phase of the mains power is connected to the third phase of the frequency converter through the third normally open contact and the fifth normally open contact. The third phase of the mains power is also connected to the live wire of the integrated power supply through the third normally open contact. The neutral wire of the mains power is connected to the neutral wire of the integrated power supply through the fourth normally open contact. The AC contactor includes a first coil and a first normally closed contact; the relay module includes a first relay, a second relay, and a third relay; the first relay includes a second coil, a second normally closed contact, a sixth normally open contact, and a seventh normally open contact; the second relay includes a third coil, a third normally closed contact, an eighth normally open contact, and a ninth normally open contact; the third relay includes a fourth coil and a fourth normally closed contact; the positive terminal of the battery is connected to the first phase of the frequency converter through the sixth normally open contact, and the negative terminal of the battery is connected to the second phase of the frequency converter through the seventh normally open contact; the first terminal of the boost module is connected to the live wire of the integrated power supply through the eighth normally open contact, and the second terminal of the boost module is connected to the... The ninth normally open contact is connected to the neutral wire of the integrated power supply; the first end of the auxiliary power module is connected to the second port of the control module through the fourth coil; the first end of the auxiliary power module is also connected to the first end of the first normally closed contact, the second end of the first normally closed contact is connected to the first port of the control module through the second coil, and the second end of the first normally closed contact is also connected to the first port of the control module through the third coil; the first phase of the mains power is connected to the first end of the third normally closed contact through the first coil, the second end of the third normally closed contact is connected to the first end of the fourth normally closed contact through the second normally closed contact, and the second end of the fourth normally closed contact is connected to the second phase of the mains power.

2. The elevator power outage emergency rescue device according to claim 1, characterized in that, The control module is used to: if the mains power is normal, determine that the signal output from the second port is in a first state, so that the fourth coil is de-energized and the first coil is energized; if the mains power is abnormal, determine that the signal output from the second port is in a second state and the signal output from the first port is in a second state, so that the fourth coil is energized, the first coil is de-energized, the second coil is energized, and the third coil is energized.

3. The elevator power outage emergency rescue device according to claim 1, characterized in that, The third port of the control module is connected to the first terminal of the activation switch, and the fourth port of the control module is connected to the second terminal of the activation switch; the control module is used to turn on or off the emergency power supply for the elevator during power outages via the activation switch.

4. The elevator power outage emergency rescue device according to claim 1, characterized in that, The fifth port of the control module is connected to the first end of the main control unit of the elevator control cabinet, and the sixth port of the control module is connected to the second end of the main control unit. The control module is used to: if the mains power is abnormal, send an emergency output signal to the main control unit to perform elevator power outage emergency rescue; if the elevator power outage emergency rescue is completed, receive the stop output signal from the main control unit, and determine that the signal output from the first port of the control module is in the first state and the signal output from the second port is in the first state, so as to de-energize the second coil and the third coil.

5. A method for emergency rescue during elevator power outages, characterized in that, The method, applied to the elevator power outage emergency rescue device as described in claim 1, comprises: Adjust the state of the relays in the relay module according to the mains power status, and determine whether to connect the mains power to the elevator control cabinet, or determine whether to connect the battery to the frequency converter of the elevator control cabinet and the boost module to the integrated power supply of the elevator control cabinet.

6. The elevator power outage emergency rescue method according to claim 5, characterized in that, The method further includes: If the mains power is normal, the signal output from the second port of the control module is determined to be in the first state, so that the fourth coil of the third relay is de-energized and the first coil of the AC contactor is energized; If the mains power is abnormal, the signal output from the second port of the control module is determined to be in the second state, and the signal output from the first port is determined to be in the second state, so that the fourth coil is energized, the first coil is de-energized, the second coil of the first relay is energized, and the third coil of the second relay is energized.

7. The elevator power outage emergency rescue method according to claim 5, characterized in that, The method further includes: If the mains power is abnormal, an emergency output signal is sent to the main control unit of the elevator control cabinet to execute the elevator power outage emergency rescue; If the elevator power outage emergency rescue is completed, the stop output signal of the main control unit is received, and the signal output from the first port of the control module is determined to be in the first state and the signal output from the second port is determined to be in the first state, so that the second coil of the first relay is de-energized and the third coil of the second relay is de-energized.

8. An elevator, characterized in that, Includes the elevator power outage emergency rescue device as described in any one of claims 1 to 4.

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