Elevator power failure emergency rescue device and method and elevator

Abstract

The invention discloses an elevator power failure emergency rescue device and method and an elevator. The device comprises a control module, a storage battery, a boosting module, an auxiliary source module and a relay module, the auxiliary source module is connected with a mains supply and is connected with the control module through the relay module, and the control module is used for adjusting the state of a relay in the relay module according to the state of the mains supply and determining that the mains supply is connected to an elevator control cabinet or the storage battery and the boosting module are connected 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 boosting module, and the boosting module is connected with an integrated power supply of the elevator control cabinet through the relay module. According to the invention, the complexity of the emergency rescue equipment is reduced, and the working reliability is improved. The method can be widely applied to the technical field of elevator control.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator control, and in particular to an elevator power failure emergency rescue device, method, and elevator. Background Art

[0002] Elevators, as a means of vertical transportation, are widely used in modern buildings. However, during operation, they may encounter unexpected situations such as power outages, which can trap the elevator car, causing panic and inconvenience for passengers, and even endangering their safety. Therefore, elevators need to be equipped with power outage emergency rescue devices to open the trapped elevator car in the event of a power outage.

[0003] In the prior art, elevator emergency rescue devices typically use a transformer to boost the low-voltage DC power from energy storage batteries to high-voltage DC. This high-voltage DC power is then converted to single-phase AC220V or three-phase AC380V using inverter control. These devices require an inverter circuit to convert DC to AC, resulting in a long energy transmission chain and complex equipment, high costs, and difficult installation and maintenance. Summary of the Invention

[0004] The purpose of the present invention is to solve one of the technical problems existing in the prior art to at least a certain extent.

[0005] Therefore, the object of the present invention is to provide an elevator power outage emergency rescue device, method and elevator with simple structure.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by the embodiments of the present invention include the following aspects:

[0007] On the one hand, an embodiment of the present invention provides an elevator power outage emergency rescue device, comprising: a control module, a battery, a boost module, an auxiliary source module, and a relay module; the auxiliary 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 relay in the relay module according to the mains power state, and determine whether to connect the mains power to the elevator control cabinet, or to connect the battery and boost module to the elevator control cabinet; the battery is connected to the inverter 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. The present application realizes emergency power supply for the elevator through the battery and boost module, alleviating the problem of complex equipment through inversion; at the same time, the present application realizes emergency power supply for the elevator through the control module and relay module, and the control is simple and reliable. The present application is conducive to reducing the complexity of emergency rescue equipment and improving working reliability.

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

[0009] Furthermore, the elevator power outage emergency rescue device of an embodiment of the present invention also 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 inverter through the first normally open contact, the second phase of the mains power is connected to the second phase of the inverter through the second normally open contact, the third phase of the mains power is connected to the third phase of the inverter 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] Furthermore, 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, and the third relay includes a fourth coil and a fourth normally closed contact; the positive pole of the battery is connected to the first phase of the inverter through the sixth normally open contact, and the negative pole of the battery is connected to the second phase of the inverter through the seventh normally open contact; the first end of the boost module is connected to the live wire of the integrated power supply through the eighth normally open contact, and the boost The second end of the module is connected to the neutral line of the integrated power supply through the ninth normally open contact; the first end of the auxiliary source module is connected to the second port of the control module through the fourth coil; the first end of the auxiliary source 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 used to: if the mains power is normal, determine that the signal output by the second port is in the 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 the second state, and the signal output by the first port is in the 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 end of the input switch, and the fourth port of the control module is connected to the second end of the input switch; the control module is used to turn on or off the elevator power outage emergency power supply through the input 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 of the main control unit, determine that the signal output by the first port of the control module is in the first state and the signal output by the second port is in the first state, so that the second coil and the third coil are de-energized.

[0015] On the other hand, an embodiment of the present invention provides an elevator power outage emergency rescue method, which is applied to the above-mentioned elevator power outage emergency rescue device. The method includes:

[0016] The state of the relay in the relay module is adjusted according to the mains power state, and it is determined to connect the mains power to the elevator control cabinet, or it is determined to connect the battery to the inverter 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 according to the embodiment of the present invention further includes:

[0018] If the mains power is normal, determining that the signal output by the second port of the control module is 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 AC power is abnormal, determine that the signal output by the second port of the control module is in the second state and the signal output by the first port is 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 according to the embodiment of the present 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 perform emergency rescue of the elevator power outage;

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

[0023] On the other hand, an embodiment of the present invention provides an elevator, comprising the above-mentioned elevator power failure emergency rescue device.

[0024] On the other hand, an embodiment of the present invention provides 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-mentioned elevator power outage emergency rescue method.

[0028] On the other hand, an embodiment of the present invention provides a storage medium storing a program executable by a processor. When the program is executed by the processor, it is used to implement the above-mentioned elevator power outage emergency rescue method.

[0029] The device provided by the embodiment of the present invention includes: a control module, a battery, a boost module, an auxiliary source module, and a relay module; the auxiliary source module is connected to the mains power and is connected to the control module through the relay module, and the control module is used to adjust the state of the relay in the relay module according to the mains power state, and determine whether to connect the mains power to the elevator control cabinet, or to connect the battery and 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, and the boost module is connected to the integrated power supply of the elevator control cabinet through the relay module. The present application realizes emergency power supply for elevators through batteries and boost modules, which alleviates the problem of complex equipment through inversion; at the same time, the present application realizes emergency power supply for elevators through control modules and relay modules, and the control is simple and reliable. The present application is conducive to reducing the complexity of emergency rescue equipment and improving work reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following introduction is made to the drawings of the embodiments of the present invention or the related technical solutions in the prior art. It should be understood that the drawings introduced below are only for the convenience of clearly describing 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 work.

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

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

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

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

[0035] Figure 5 The present invention provides a flow chart of an embodiment of an elevator power outage emergency rescue method. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and are not to be construed as limiting the present invention. The step numbers in the following embodiments are provided for ease of explanation only and do not limit the order of the steps. The order of execution of the steps in the embodiments can be adaptively adjusted according to the understanding of those skilled in the art.

[0037] Elevators, as a means of vertical transportation, are widely used in modern buildings. However, during operation, elevators may encounter emergencies such as power outages, trapping the elevator car and causing panic and inconvenience for passengers, even endangering their lives. Most existing elevator emergency rescue systems use a transformer to boost the low-voltage DC from energy storage batteries to high-voltage DC. This is then converted to single-phase AC220V or three-phase AC380V using inverter control.

[0038] Existing elevator emergency rescue devices require the use of inverter circuits to convert DC into AC. The energy transmission link is long and there are problems such as complex equipment, high cost, and difficulty in installation and maintenance.

[0039] In response to the above problems, the present application provides an elevator power outage emergency rescue device and system, which is used to solve the problems of long energy transmission link, complex equipment, high cost, and difficult installation and maintenance in the existing technical solutions of elevator emergency rescue devices.

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

[0041] Figure 1 1 is a schematic structural 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 source module, relay module;

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

[0044] The control module is used to adjust the state of the relay in the relay module according to the mains power state, and 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] The control module in this application is also used to control the working state of the boost module. Figure 2 As shown, the relay in the relay module realizes the interlocking of the mains input, battery and boost module input, thus improving the working reliability. Figure 3 As shown, the auxiliary source module is used to supply power to the control module and the relay module.

[0047] Further, refer to Figure 2As shown, the elevator power failure emergency rescue device of an embodiment of the present 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 inverter through the first normally open contact, the second phase of the mains power is connected to the second phase of the inverter through the second normally open contact, the third phase of the mains power is connected to the third phase of the inverter 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] Furthermore, in one embodiment of the present invention, the AC contactor includes a first coil and a first normally closed contact, and 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, and the third relay includes a fourth coil and a fourth normally closed contact; the positive pole of the battery is connected to the first phase of the inverter through the sixth normally open contact, and the negative pole of the battery is connected to the second phase of the inverter through the seventh normally open contact; the first end of the boost module is connected to the live wire of the integrated power supply through the eighth normally open contact, and the boost module The second end of the block is connected to the neutral line of the integrated power supply through the ninth normally open contact; the first end of the auxiliary source module is connected to the second port of the control module through the fourth coil; the first end of the auxiliary source 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 used to: if the mains power is normal, determine that the signal output by the second port is in the 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 the second state, and the signal output by the first port is in the 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, by adjusting the state of the first port and the second port, the power supply state of each relay is adjusted to control the power supply source of the elevator. Figure 4 The SB control port of the central control module, and the second port is the SY port of the active module. A switch unit is also provided between the first port and the fourth coil. For example, it can be a switching circuit composed of transistors, which adjusts the power 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 switch unit, the correspondence between the port output state of the control module and the power state of the fourth coil is set. This application does not specifically limit this correspondence.

[0051] In response to the problems of long energy transmission links, complex equipment, high cost, and difficulty in installation and maintenance in existing elevators, the present application provides an elevator power outage emergency rescue device and system, which is used to solve the problems of long energy transmission links, complex equipment, high cost, and difficulty in installation and maintenance in the existing technical solutions of elevator emergency rescue devices.

[0052] In order 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 phase of R / S / T, and the second and third phases are also applicable) is connected to the power outage emergency rescue device from the Ra / Sa / Ta / Na terminals, and the power outage emergency rescue device outputs power from the Rb / Sb / Tb to the control cabinet inverter, and another T2b / Nb output supplies power to the control cabinet integrated power supply; when the mains power is normal, the mains power R / S / T / N inputs the RST phase AC mains power to the control cabinet inverter after passing through the power outage emergency rescue device, and inputs the TN phase AC mains power (i.e. the live wire and neutral wire of the integrated power supply in this application) to the control cabinet integrated power supply.

[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 mains power R / S / T / N input to the control cabinet, and the low-voltage DC power of the battery inside the power outage emergency rescue device is output to the R1 and S1 terminals of the control cabinet inverter (i.e., any two of the first, second, and third phases of the inverter in this application) to power it. The low-voltage DC power of the battery inside the power outage emergency rescue device is boosted to high-voltage DC power by the boost module and output to the integrated power supply of the control cabinet to power it. As a result, the control cabinet inverter is directly supplied by the battery DC power, without the need for boosting and inversion processing. The integrated power supply of the control cabinet is supplied by the high-voltage DC power after the battery DC power is boosted, without the need for inversion processing, which reduces the intermediate energy transfer process, improves utilization efficiency, and effectively reduces costs.

[0055] like Figure 2 As shown, the mains R / S / T / N are connected to the 5 / 7 / 9 / 11 normally open terminals (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 of the power outage emergency rescue device respectively, and the corresponding SA AC contactor normally open contact terminals 6 / 8 / 10 / 12 are connected to the Rb / Sb / T2b / Nb input terminals of the relay module. At the same time, the SA AC contactor normally open contact terminals 6 / 8 are connected to the R1 / S1 terminals of the control cabinet inverter, the SA AC contactor normally open contact terminal 14 (i.e. the fifth normally open contact) is connected to the SA AC contactor normally open contact terminal 10, the SA AC contactor normally open contact terminal 13 is connected to the control cabinet inverter terminal T1, and the SA AC contactor normally open contact terminal 14 is connected to the SA AC contactor normally open contact terminal 10. The normally open contacts 12 / 14 of the inverter are respectively connected to the T2 and N1 terminals of the integrated power supply of the control cabinet (i.e., the live wire and neutral wire of the integrated power supply); after the coil of the SA AC contactor is energized and closed, the normally open contacts 5 / 6, normally open contacts 7 / 8, normally open contacts 9 / 10, normally open contacts 11 / 12, and normally open contacts 13 / 14 are also closed and short-circuited, the control cabinet inverter and the integrated power supply are connected to the mains R / S / T / N, and the elevator is powered by the mains; after the coil of the SA AC contactor loses power and pops open, the normally open contacts 5 / 6, normally open contacts 7 / 8, normally open contacts 9 / 10, normally open contacts 11 / 12, and normally open contacts 13 / 14 are also popped open and disconnected, and the control cabinet inverter and the integrated power supply are disconnected from the mains R / S / T / N.

[0056] The normally open contacts 5 / 7 (i.e., the sixth and seventh normally open contacts) of the relay module SB1 (i.e., the first relay) are connected to the R1 / S1 terminal of the control cabinet inverter, and the normally open contacts 6 / 8 of the SB1 relay are 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 the SB2 relay (i.e., the second relay) are connected to the T2 / N1 terminal of the integrated power supply of the control cabinet, and the normally open contacts 6 / 8 of the SB2 relay are connected to the DC+ / DC- terminals of the boost module; when the SB1 relay and the SB2 relay are closed, the normally open contact 5 of the SB1 relay is connected to the DC+ / DC- terminals of the boost module. / 6, SB1 relay normally open contacts 7 / 8, SB2 relay normally open contacts 5 / 6, and SB2 relay normally open contacts 7 / 8 are also closed and short-circuited, the RS end of the control cabinet inverter is connected to the low-voltage DC power of the battery, the control cabinet integrated power supply 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 the SB1 relay and SB2 relay pop open, the SB1 relay normally open contacts 5 / 6, SB1 relay normally open contacts 7 / 8, SB2 relay normally open contacts 5 / 6, and SB2 relay normally open contacts 7 / 8 also pop open and disconnect, and the power outage cabinet emergency rescue device is disconnected from the control cabinet inverter and integrated power supply.

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

[0058] The auxiliary source module output PVCC (the first port of the auxiliary source module) is connected to the SA AC contactor auxiliary normally closed contact 4 (first normally closed contact), the SA AC contactor auxiliary normally closed contact 3 is connected to the SB1 relay power supply terminal 1 and the SB2 relay power supply terminal 1, the SB1 relay power supply terminal 2 (second coil) and the SB2 relay power supply terminal 2 (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 loses power and the first normally closed contact is closed, the main control module can energize the coils of the SB1 relay and the SB2 relay through the SB control terminal, and the normally open contact is closed, so that the power outage cabinet emergency rescue device can supply power to the control cabinet inverter and the integrated power supply connection.

[0059] The SA AC contactor, SY relay, SB1 relay, and SB2 relay connections above achieve 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 battery's low-voltage DC power and the boost module's high-voltage DC power will not be mistakenly connected to the mains R / S / T / N terminals, potentially damaging the battery and drive control board.

[0060] The auxiliary source module outputs PVCC and is connected to the SY relay power supply terminal 1 (i.e., the fourth coil), 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 normally closed contact of the SY relay to disconnect, thereby disconnecting the power supply of the SA AC contactor and allowing its normally open contact to pop open, thereby disconnecting the control cabinet inverter and the integrated power supply from the mains R / S / T / N access.

[0061] Furthermore, in one embodiment of the present invention, the third port of the control module is connected to the first end of the input switch, and the fourth port of the control module is connected to the second end of the input switch; the control module is used to turn on or off the elevator power outage emergency power supply through the input 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 of the main control unit, determine that the signal output by the first port of the control module is in the first state and the signal output by the second port is in the first state, so that the second coil and the third coil are de-energized.

[0064] On the other hand, an embodiment of the present invention provides an elevator power outage emergency rescue method, which is applied to the above-mentioned elevator power outage emergency rescue device. The method includes:

[0065] The state of the relay in the relay module is adjusted according to the mains power state, and it is determined to connect the mains power to the elevator control cabinet, or it is determined to connect the battery to the inverter 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 according to the embodiment of the present invention further includes:

[0067] If the mains power is normal, determining that the signal output by the second port of the control module is 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 AC power is abnormal, determine that the signal output by the second port of the control module is in the second state and the signal output by the first port is 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 according to the embodiment of the present 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 perform emergency rescue of the elevator power outage;

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

[0072] It can be seen that the contents of the above-mentioned device embodiments are all applicable to the present method embodiments. The functions specifically implemented by the present method embodiments are the same as those of the above-mentioned device embodiments, and the beneficial effects achieved are also the same as those achieved by the above-mentioned system embodiments.

[0073] The following is a detailed description of the elevator power outage emergency rescue device and method provided by this application using a specific embodiment:

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

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

[0076] (2) Auxiliary source module: The auxiliary source module is connected to the charging module. When the AC input RN is normal, the DC48V DC power is taken from the charging circuit and stepped down to DC12V (PVCC) DC power to power the relay module and the main control module. The DC12V (PVCC) DC power is further stepped down to DC3.3V (DVCC) DC power to power the main control module.

[0077] (3) Boost module: When the power outage emergency rescue output is in progress, the boost module boosts the DC48V low-voltage DC power of the battery to DC310V high-voltage DC power. The DC310V high-voltage DC power is then supplied 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 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 operates to supply the battery DC48V low-voltage DC power to the R / S terminal of the control cabinet inverter and the DC310V high-voltage DC power of the boost module to the T2 / N1 terminal of the control cabinet integrated power supply.

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

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

[0081] like Figure 4As shown, the mains R / S / T / N are 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 drive control board of the power outage cabinet emergency device to power 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 the normally closed contacts 5 / 7 of the SB2 relay through the J1 terminal of the drive control board; the normally open contacts 6 / 8 of the SA AC contactor are connected to the R1 / S1 terminal of the control cabinet inverter through the TB2 terminal block, and the normally open contact 10 of the SA AC contactor is connected to the normally open contact 14 of the SA AC contactor. The normally open contact 13 of the SA AC contactor is connected to the T1 terminal of the control cabinet inverter through the TB2 terminal block; the normally open contacts 10 / 12 of the SA AC contactor are connected to the T2 / N1 terminal of the control cabinet integrated power supply through the TB2 terminal block; therefore, when the SA AC contactor is closed, the normally open contacts 5 / 6, normally open contacts 7 / 8, normally open contacts 9 / 10, normally open contacts 11 / 12, and normally open contacts 13 / 14 are also closed and short-circuited, the control cabinet inverter and integrated power supply are connected to the mains R / S / T / N, and the elevator is powered by the mains; after the SA AC contactor pops open, the normally open contacts 5 / 6, normally open contacts 7 / 8, normally open contacts 9 / 10, normally open contacts 11 / 12, and normally open contacts 13 / 14 also pop open and disconnect, and the control cabinet inverter and integrated power supply are disconnected from the mains R / S / T / N.

[0082] Relay module SB1 relay normally open contacts 5 / 7 are connected to the control cabinet inverter R1 / S1 terminal through J1 terminal, and SB1 relay normally open contacts 6 / 8 are connected to the battery BAT+\BAT- ends DC48V DC; SB2 relay normally open contacts 5 / 7 are connected to the control cabinet integrated power supply T2 / N1 terminal through J1 terminal and TB2 terminal block, and SB2 relay normally open contacts 6 / 8 are connected to the boost module DC+ / DC- ends DC310V DC; when SB1 relay and SB2 relay are closed, SB1 relay normally open contacts 5 / 6, SB1 relay normally open contacts 7 / 8, S The normally open contacts 5 / 6 of the B2 relay and the normally open contacts 7 / 8 of the SB2 relay are also closed and short-circuited, the RS end of the control cabinet inverter is connected to the low-voltage DC48V direct current of the battery, the integrated power supply of the control cabinet is connected to the DC310V direct current of the boost module, and the elevator is powered by the power outage rescue emergency device; when the SB1 relay and the SB2 relay pop open, the normally open contacts 5 / 6 of the SB1 relay, the normally open contacts 7 / 8 of the SB1 relay, the normally open contacts 5 / 6 of the SB2 relay, and the normally open contacts 7 / 8 of the SB2 relay also pop open and disconnect, and the power outage cabinet emergency rescue device is disconnected from the control cabinet inverter and the integrated power supply.

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

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

[0085] The above connection method of SA AC contactor, SY relay, SB1 relay and SB2 relay realizes the isolation and interlocking of the battery voltage output terminal, boost output terminal and mains RSTN input of the emergency rescue device of the power outage cabinet at the hardware level, ensuring that the battery DC48V direct current and the boost module DC310V direct current will not be mistakenly connected to the mains R / S / T / N and cause damage to the battery and drive control board.

[0086] The auxiliary source module outputs PVCC and is connected to the SY relay power supply terminal 1. 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 of the SA AC contactor and making it pop open, thereby disconnecting the control cabinet inverter and the integrated power supply from the mains R / S / T / N access.

[0087] The J2 terminal of the drive control board in the power outage emergency rescue device is connected to an external ship-type input switch. When the switch is disconnected, the power outage emergency rescue device turns off the emergency output function and keeps the mains power R / S / T / N connected to the control cabinet inverter and integrated power supply. Only when the switch is closed is the power outage cabinet emergency rescue device allowed to output emergency power to the control cabinet inverter and integrated power supply for rescue operations.

[0088] The J4 terminal of the drive control board in the power outage emergency rescue device is connected to the main control module, and the external control cabinet main control RS485. The drive control board exchanges data with the elevator control cabinet main control through the RS485 bus. The drive control board uploads internal status information and power outage emergency output signals through the RS485 bus. The elevator control cabinet main control queries the power outage emergency rescue device status command and issues a stop output signal 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 pop open, thereby disconnecting the RS phase AC power supply circuit of the SA AC contactor. Then the SA contactor pops open, the elevator control cabinet inverter and the integrated power supply disconnect the mains R / S / T / N input, and the relay module corresponding to the J1 terminal of the power outage cabinet emergency device drive control board also disconnects the mains R / S / T / N input; through the SB control port of the main control module, the SB1 relay and the SB2 relay are closed, the DC48V DC of the battery is connected to the R / S terminal of the elevator control cabinet inverter to power it, and the DC+ / DC- of the boost module is connected to the T2 / N1 terminal of the elevator control cabinet integrated power supply; the boost module boosts the DC48V DC of the battery to a DC310V high voltage DC to supply the elevator control The cabinet is powered by an integrated power supply. The emergency rescue device of the power outage cabinet uploads the emergency output signal to the elevator main control through RS485. After receiving the signal, the elevator main control starts the rescue operation, runs the elevator to the nearest leveling signal and opens the door, allowing passengers to leave the elevator safely. After the rescue operation is completed, the elevator main control sends a stop output signal through RS485. After receiving the signal, the power outage emergency rescue device stops the boost operation, and then opens the SB1 relay and SB2 relay through the SB control port of the main control module, disconnecting the power supply to the elevator control cabinet inverter and the integrated power supply. Through the SY control port of the main control module, the SY relay is closed, waiting for the mains R / S phase AC power to recover, then the SA AC contact is energized and closed, so that the mains R / S / T / N input is reconnected to the control cabinet inverter and the integrated power supply.

[0090] Reference Figure 1 As shown in the figure, the RSTN mains power first enters the power outage emergency rescue device, and then the power outage emergency rescue device outputs power to the elevator control cabinet. Figure 2 The relay module and AC contactor have hardware interlocking, ensuring that when the SA AC contactor is closed, the SB1 and SB2 relays are powered off at the hardware level and thus pop open. When the SB1 and SB2 relays are closed, the SA AC contactor is powered off at the hardware level and thus pop open, thereby isolating the RSTN AC power from the battery BAT+\BAT- DC power and the boost module DC+\DC- DC power. Figure 3The power outage emergency device drive control board consists of a charging module, an auxiliary source module, a relay module, a boost module, and a main control module. The charging module converts the AC (RN) phase AC power of the mains into DC power to charge the battery; the auxiliary source module further steps down the DC power of the charging module or the battery to supply power to the main control module and relay module; the relay module isolates the mains RSTN from the internal boost module and battery; the boost module boosts the low-voltage DC power of the battery to high-voltage DC power; and the main control module controls the operation of the boost module and relay module. Figure 4 Specific embodiments 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 RS and thus close. The mains RST supplies power to the control cabinet inverter through the SA contactor, and the mains TN supplies power to the control cabinet integrated power supply through the SA contactor; when the mains power is abnormal, the SY relay pops open, causing the SA contactor to be de-energized and thus pop open, disconnecting the control cabinet from the mains power, and the SB1 and SB2 relays close, supplying the battery 48V DC power to the control cabinet inverter RS ​​input terminal. The battery 48V DC power is boosted to 310V DC by the boost module and supplied to the control cabinet integrated power supply. Figure 5 , the elevator power outage emergency device detects the mains power abnormality and outputs DC power to the control cabinet, completing the logical process of the elevator emergency rescue.

[0091] This application provides an elevator power outage emergency rescue device and system. When the mains power is abnormal, one path uses the direct current (DC) power from the battery in the power outage emergency rescue device to supply the control cabinet inverter. Another path boosts the battery's low-voltage DC power to high-voltage DC power and supplies it to the control cabinet's integrated power supply, thereby achieving the goal of outputting power for power outage emergency rescue. The control cabinet inverter is powered by the battery's DC power, eliminating the need for boosting or inverting. The control cabinet's integrated power supply is powered by the battery's DC power, boosting it to high-voltage DC power without the need for inverting. This reduces the intermediate energy transfer process, improves utilization efficiency, and effectively reduces costs.

[0092] On the other hand, an embodiment of the present invention provides an elevator, comprising the above-mentioned elevator power failure emergency rescue device.

[0093] On the other hand, an embodiment of the present invention provides 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 contents of the above method embodiments are applicable to the present system embodiments. The functions specifically implemented by the present system embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0098] An embodiment of the present invention further provides a computer-readable storage medium storing a program executable by a processor. When the program is executed by the processor, it is used to perform the above-mentioned elevator power outage emergency rescue method.

[0099] Similarly, the contents of the above method embodiments are applicable to the present storage medium embodiment. The functions specifically implemented by the present storage medium embodiment are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0100] In some optional embodiments, the function / operation mentioned in the block diagram may not occur in the order mentioned in the operation diagram. For example, depending on the function / operation involved, the two boxes shown in succession can actually be executed substantially simultaneously or the boxes can sometimes be executed in reverse order. In addition, the embodiment presented and described in the flow chart of the present invention is provided in an exemplary manner for the purpose of providing a more comprehensive understanding of the technology. The disclosed method is not limited to the operation and logic flow presented herein. Optional embodiments are contemplated in which the order of the various operations is changed and the sub-operations described as a part of a larger operation are performed independently.

[0101] In addition, although the present invention is 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 separate physical devices or software modules. It is also understood that a detailed discussion of the actual implementation of each module is not necessary for understanding the present invention. More specifically, given the properties, functions, and internal relationships of the various functional modules in the devices disclosed herein, the actual implementation of the module will be understood within the ordinary skill of an engineer. Therefore, a person skilled in the art will be able to implement the present invention set forth in the claims using ordinary skill without undue experimentation. It is also understood that the specific concepts disclosed are merely illustrative and are not intended to limit the scope of the present invention, which is determined by the full scope of the appended claims and their equivalents.

[0102] If the functions are implemented in the form of 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 the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several programs for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

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

[0104] More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic devices), a portable computer disk cartridge (magnetic devices), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disc read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering, or processing in another suitable manner as necessary, and then stored in a computer memory.

[0105] It should be understood that various parts of the present invention can be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable program execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0106] In the above description of this specification, reference to the terms "one embodiment / example," "another embodiment / example," or "certain embodiments / examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0107] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

[0108] The above is a specific description of the preferred implementation of the present invention, but the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in 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 battery, a boost module, an auxiliary source module, and a relay module; The auxiliary 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 relay in the relay module according to the mains power state, and 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, and the boost module is connected to the integrated power supply of the elevator control cabinet through the relay module.

2. The elevator power outage emergency rescue device according to claim 1, characterized in that: The device also 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 inverter through the first normally open contact, the second phase of the mains power is connected to the second phase of the inverter through the second normally open contact, the third phase of the mains power is connected to the third phase of the inverter 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.

3. The elevator power outage emergency rescue device according to claim 2, characterized in that: The AC contactor includes a first coil and a first normally closed contact, and 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, and the third relay includes a fourth coil and a fourth normally closed contact; the positive pole of the battery is connected to the first phase of the inverter through the sixth normally open contact, and the negative pole of the battery is connected to the second phase of the inverter through the seventh normally open contact; the first end of the boost module is connected to the live wire of the integrated power supply through the eighth normally open contact, and the second end of the boost module is connected to the live wire of the integrated power supply through the eighth normally open contact. The ninth normally open contact is connected to the neutral line of the integrated power supply; the first end of the auxiliary source module is connected to the second port of the control module through the fourth coil; the first end of the auxiliary source 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.

4. The elevator power outage emergency rescue device according to claim 3, characterized in that: The control module is used to: if the mains power is normal, determine that the signal output by the second port is in the 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 the second state, and the signal output by the first port is in the 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.

5. 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 end of the input switch, and the fourth port of the control module is connected to the second end of the input switch; the control module is used to turn on or off the elevator power outage emergency power supply through the input switch.

6. 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 of the main control unit, determine that the signal output by the first port of the control module is in the first state and the signal output by the second port is in the first state, so that the second coil and the third coil are de-energized.

7. An elevator power outage emergency rescue method, characterized in that: Applied to the elevator power outage emergency rescue device according to claim 1, the method comprises: The state of the relay in the relay module is adjusted according to the mains power state, and it is determined to connect the mains power to the elevator control cabinet, or it is determined to connect the battery to the inverter of the elevator control cabinet and the boost module to the integrated power supply of the elevator control cabinet.

8. The elevator power outage emergency rescue method according to claim 7, characterized in that: The method further comprises: If the mains power is normal, determining that the signal output by the second port of the control module is 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 AC power is abnormal, determine that the signal output by the second port of the control module is in the second state and the signal output by the first port is 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.

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

10. An elevator, characterized in that: The invention comprises the elevator power failure emergency rescue device according to any one of claims 1 to 6.

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