An elevator standby dual-system switch

Abstract

The present invention discloses an elevator standby dual-system switcher, belonging to the technical field of elevator system switching, which includes a main switcher and an extended switcher; four wiring boards are correspondingly arranged on four side surfaces of the main switcher, which are A1, A2, A3, and A4 circuit boards respectively, and the A1, A2, A3, and A4 wiring boards are connected to the main switching control circuit in the main switcher; four wiring boards are correspondingly arranged on four side surfaces of the extended switcher, which are B1, B2, B3, and B4 wiring boards respectively. The elevator standby dual-system switcher proposed by the present invention has a dual-system switching state. When a control cabinet is damaged, through a series connection method, it can switch between the A control cabinet and the B control cabinet, so as to achieve the rapid switching of the overall equipment and avoid the situation that when a control cabinet is damaged and during subsequent maintenance, the elevator is in a maintenance state, affecting the use of the elevator.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator system switching, and particularly relates to an elevator backup dual-system switcher. Background Art

[0002] An elevator is a vertical lift powered by an electric motor, equipped with a box-shaped cabin for carrying people or goods in multi-story buildings. There are also step-type ones with tread plates running continuously on a track, commonly known as escalators or moving sidewalks. It is a fixed lifting device serving specified floors. A vertical lift elevator has a car that runs between at least two columns of vertical or inclined rigid guide rails with an inclination angle less than 15°. The car size and structural form facilitate the entry and exit of passengers or the loading and unloading of goods. Conventionally, regardless of its driving method, the elevator is generally referred to as the total name of the vertical transportation tool in a building. It can be divided into low-speed elevators (below 1 m / s), fast elevators (1 - 2 m / s), and high-speed elevators (above 2 m / s) according to speed. Hydraulic elevators began to appear in the mid-19th century and are still used in low-rise buildings. Currently, when the elevator controller fails, the elevator cannot operate normally, which not only affects the people on the upper and lower floors but also easily poses a hazard to the passengers in the elevator. Summary of the Invention

[0003] The purpose of the present invention is to provide an elevator backup dual-system switcher to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: An elevator backup dual-system switcher includes a main switcher and an extended switcher;

[0005] Four wiring boards are correspondingly arranged on four sides of the main switcher, namely A1, A2, A3, and A4 circuit boards. The A1, A2, A3, and A4 wiring boards are connected to the main switching control circuit in the main switcher 1;

[0006] Four wiring boards are correspondingly arranged on four sides of the extended switcher, namely B1, B2, B3, and B4 wiring boards. The B1, B2, B3, and B4 wiring boards are connected to the extended switching control circuit in the extended switcher.

[0007] Further, the A1 wiring board is used for the hardness support of the circuit board and the arc extinction and isolation of electric arc sparks during channel contact;

[0008] The A2 wiring board is used for the extraction of limit signal terminals of 96-channel small current and 8-channel large current terminal switch signals;

[0009] The A3 wiring board is used for the extraction of motor drive terminals, large current 8-channel terminals, and control connection terminals;

[0010] The A4 wiring board is used for the extraction of 1 - 96 channel terminals.

[0011] Further, the B1 terminal block is used for the hardness support of the circuit board and arc extinguishing and arc isolation when in channel contact;

[0012] The B2 terminal block is responsible for the extraction of 168-channel switches and limit signal terminals;

[0013] The B3 terminal block is used for the extraction of motor drive terminals, 72-channel (97 - 168) terminals and control connection terminals;

[0014] The B4 terminal block is used for the extraction of 1 - 96 channel terminals.

[0015] Further, in the main switching control circuit, the pin 5 of the externally connected motor controller ADK is connected in series with the fuse FU1 and connected to the T channel, the pins 3 and 4 of the externally connected motor controller ADK are connected to the parallel interface of the fuse FU and the pins 3 and 4 of the motor interface ADJ1, and the pins 1 and 2 of the externally connected motor controller ADK are connected to the pins 2 and 1 of the motor interface ADJ1;

[0016] The pin 6 of the externally connected motor controller ADK is connected to the pin 7 of the control terminal AKZ and the parallel interface of the pins 1, 3, and 5 of the limit switch interface AXW, the pins 7 and 8 of the externally connected motor controller ADK are connected to the pins 2 and 4 of the limit switch interface AXW, and the pins 9 and 10 of the externally connected motor controller ADK are connected to the pins 12 and 1 of the control terminal AKZ.

[0017] Further, in the extended switching control circuit, the pin 5 of the externally connected motor controller BDK is connected in series with the fuse FU1 and connected to the T channel, the pins 3 and 4 of the externally connected motor controller BDK are connected to the parallel interface of the fuse FU and the pins 3 and 4 of the motor interface BDJ1, and the pins 1 and 2 of the externally connected motor controller BDK are connected to the pins 2 and 1 of the motor interface BDJ1;

[0018] The pin 6 of the externally connected motor controller BDK is connected to the pin 7 of the control terminal BKZ and the parallel interface of the pins 1, 3, and 5 of the limit switch interface BXW, the pins 7 and 8 of the externally connected motor controller BDK are connected to the pins 2 and 4 of the limit switch interface BXW, and the pins 9 and 10 of the externally connected motor controller BDK are connected to the pins 12 and 1 of the control terminal BKZ.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] A kind of elevator standby dual - system switcher proposed by the present invention, the elevator standby dual - system switcher, with the set dual - system switching state, can, in the case of damage to one control cabinet, through a series connection method, switch between the A control cabinet and the B control cabinet, so as to achieve the rapid switching of the overall equipment and avoid the elevator being in a maintenance state during subsequent maintenance when one control cabinet is damaged, which affects the use of the elevator. Brief Description of the Drawings

[0021] Figure 1 It is the structural diagram of the A1 wiring board of the present invention;

[0022] Figure 2 It is the structural diagram of the A2 wiring board of the present invention;

[0023] Figure 3 It is the structural diagram of the A3 wiring board of the present invention;

[0024] Figure 4 It is the structural diagram of the A4 wiring board of the present invention;

[0025] Figure 5 It is the structural diagram of the B1 wiring board of the present invention;

[0026] Figure 6 It is the structural diagram of the B2 wiring board of the present invention;

[0027] Figure 7 It is the structural diagram of the B3 wiring board of the present invention;

[0028] Figure 8 It is the structural diagram of the B4 wiring board of the present invention;

[0029] Figure 9 It is the schematic diagram of the main switching control circuit of the present invention;

[0030] Figure 10 It is the schematic diagram of the extended switching control circuit of the present invention;

[0031] Figure 11 It is the extended superposition state diagram of the present invention.

[0032] In the figure: 1. Main switch; 2. Extended switch; 3. Main switching control circuit; 4. Extended switching control circuit. Detailed Embodiment

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] The definition of the ADK interface (reserved port for external motor controller) of the QHWL-A3 board is as follows:

[0035] Pin 1 --- Forward rotation of L1 motor

[0036] Pin 2 --- Reverse rotation of L2 motor

[0037] Pin 3 --- Neutral wire of N motor

[0038] Pin 4 --- Neutral wire (power supply for motor controller)

[0039] Pin 5 --- Phase L3 live wire (power supply for motor controller)

[0040] Pin 6 --- Common terminal of COM control signal

[0041] Pin 7 --- Normally open contact of LXW left direction limit signal

[0042] Pin 8 --- Normally open contact of RXW right direction limit signal

[0043] Pin 9 --- Normally open contact of L(A) left running direction signal

[0044] Pin 10 --- Normally open contact of R(B) right running direction signal

[0045] The definition of AXW interface is as follows:

[0046] Pin 1 --- Common terminal

[0047] Pin 2 --- Normally open contact of LXW limit switch

[0048] Pin 3 --- Normally open contact of LXW limit switch

[0049] Pin 4 --- Normally open contact of RXW limit switch

[0050] Pin 5 --- Normally open contact of RXW limit switch

[0051] The definition of AKZ interface is as follows:

[0052] Pin 1 --- Normally closed signal of RBKA1B controller brake contactor

[0053] Pin 2 --- Normally closed signal of RBKA2B controller brake contactor

[0054] Pin 3 --- Normally closed signal of RYXA1B controller running contactor

[0055] Pin 4 --- Normally closed signal of RYXA2B controller running contactor

[0056] Pin 5 --- Future series elevators

[0057] Pin 6 --- Short circuit LA and COM, the motor runs leftward, connecting the power supply and signal channel of A controller. Pin 7 --- COM. Pin 8 --- Short circuit RB and COM, the motor runs rightward, connecting the power supply and signal channel of A controller

[0058] Pin 9 --- Normally closed signal of LBKB1A controller brake contactor

[0059] Pin 10 --- Normally-closed signal of the brake contactor of the LBKB2A controller

[0060] Pin 11 --- Normally-closed signal of the running contactor of the LYXB1A controller

[0061] Pin 12 --- Normally-closed signal of the running contactor of the LYXB2A controller

[0062] The definitions of ADJ1, ADJ2, ADJ3, and the interfaces are as follows: (For channels that need to be expanded, they can be directly connected in parallel and superimposed) Pin 1 --- Motor wire L2B ---- Pin 2 --- Motor wire L1A ---- Pin 3 --- Motor wire of phase 4 ---- N

[0063] The definition of the BDK interface of the QHWL-B3 board (reserved port for external motor controller) is as follows:

[0064] Pin 1 --- Forward rotation of motor L1

[0065] Pin 2 --- Reverse rotation of motor L2

[0066] Pin 3 --- Neutral wire of motor N

[0067] Pin 4 --- Neutral wire N (power supply for motor controller)

[0068] Pin 5 --- Live wire L3 (power supply for motor controller)

[0069] Pin 6 --- Common terminal of control signal COM

[0070] Pin 7 --- Normally-open signal of the left direction limit switch LXW

[0071] Pin 8 --- Normally-open signal of the right direction limit switch RXW

[0072] Pin 9 --- Normally-open signal of the left running direction signal L(A)

[0073] Pin 10 --- Normally-open signal of the right running direction signal R(B)

[0074] The definition of the BXW interface is as follows:

[0075] Pin 1 --- Common terminal COM

[0076] Pin 2 --- Normally-open signal of the limit switch LXW

[0077] Pin 3 --- Normally-open signal of the limit switch LXW

[0078] Pin 4 --- Normally-open signal of the limit switch RXW

[0079] Pin 5 --- Normally-open signal of the limit switch RXW

[0080] The definition of the BKZ interface is as follows:

[0081] Pin 1---Normally closed signal of the brake contactor of the RBKA1B controller

[0082] Pin 2---Normally closed signal of the brake contactor of the RBKA2B controller

[0083] Pin 3---Normally closed signal of the running contactor of the RYXA1B controller

[0084] Pin 4---Normally closed signal of the running contactor of the RYXA2B controller

[0085] Pin 5---

[0086] Pin 6---Short circuit LA and COM to make the motor run to the left, connecting the power supply and signal channel of the A controller

[0087] Pin 7---COM

[0088] Pin 8---Short circuit RB and COM to make the motor run to the right, connecting the power supply and signal channel of the A controller

[0089] Pin 9---Normally closed signal of the brake contactor of the LBKB1A controller

[0090] Pin 10---Normally closed signal of the brake contactor of the LBKB2A controller

[0091] Pin 11---Normally closed signal of the running contactor of the LYXB1A controller

[0092] Pin 12---Normally closed signal of the running contactor of the LYXB2A controller

[0093] The interface definitions of BDJ1, BDJ2, and BDJ3 are as follows: (Channels that need to be expanded can be directly connected in parallel and superimposed)

[0094] Pin 1---Motor wire L2B

[0095] Pin 2---Motor wire L1A

[0096] Pin 3---Motor wire for pins 4

[0097] In order to solve the problem in the prior art that when the elevator controller fails at present, the elevator cannot run normally, which not only affects the people on the upper and lower floors, but also easily endangers the passengers in the elevator, the following technical solutions are given. Please refer to Figures 1-11 ;

[0098] An elevator standby dual-system switcher includes a main switcher 1 and an extended switcher 2;

[0099] The model of the main switch 1 is QHWL-A. Four wiring boards, namely circuit boards A1, A2, A3, and A4, are correspondingly arranged on the four sides of the main switch 1. The A1, A2, A3, and A4 wiring boards are connected to the main switching control circuit 3 inside the main switch 1;

[0100] The model of the expansion switch 2 is QHWL-A. Four wiring boards, namely B1, B2, B3, and B4 wiring boards, are correspondingly arranged on the four sides of the expansion switch 2. The B1, B2, B3, and B4 wiring boards are connected to the expansion switching control circuit 4 inside the expansion switch 2.

[0101]

[0102] For N, R, S, T, U, V, W, ─, the rated channel voltage is AC450V;

[0103] The rated current ≤ 80A (the nominal value of the spring pin plug is 40A * 6 = 240A);

[0104] For channels 1---168 (1-96), the rated voltage is DC600V / AC300V;

[0105] The rated current ≤ 5A (the nominal value of the spring pin plug from the manufacturer is 40A);

[0106] Ambient temperature: -10°C - 60°C;

[0107] Design life: 10 years or 10,000 times (mechanical life of the channel spring pins);

[0108] Voltage range: AC200 - AC240V 50HZ;

[0109] Motor life: continuous operation ≥ 6000 hours;

[0110] Switching principle: The motor drives the mechanical slide table to switch;

[0111] Switching method: cold switching;

[0112] Design power: 37KW;

[0113] The A1 wiring board is used for the hardness support of the circuit board and arc extinguishing isolation of the arc when the channels are in contact;

[0114] The A2 wiring board is used for the signal extraction of the limit signal terminals for the small current of 96 channels and the large current of 8 channels and the terminal switch signals;

[0115] The A3 wiring board is used for the motor drive terminals, the large current 8-channel terminals, and the control connection terminals to be led out;

[0116] The A4 wiring board is used for the lead-out of the 1–96 channel terminals.

[0117] The B1 terminal block is used for the hardness support of the circuit board and arc extinguishing and isolation of arc sparks during channel contact;

[0118] The B2 terminal block is responsible for the extraction of 168-channel switch and limit signal terminals;

[0119] The B3 terminal block is used for the extraction of motor drive terminals, 72-channel (97 - 168) terminals and control connection terminals;

[0120] The B4 terminal block is used for the extraction of 1 - 96 channel terminals.

[0121] In the main switching control circuit 3, the pin 5 of the external motor controller ADK is connected in series with the fuse FU1 to the T channel, the pins 3 and 4 of the external motor controller ADK are connected to the parallel interface of the fuse FU and the pins 3 and 4 of the motor interface ADJ1, and the pins 1 and 2 of the external motor controller ADK are connected to the pins 2 and 1 of the motor interface ADJ1;

[0122] The pin 6 of the external motor controller ADK is connected to the pin 7 of the control terminal AKZ and the parallel interface of the pins 1, 3 and 5 of the limit switch interface AXW, the pins 7 and 8 of the external motor controller ADK are connected to the pins 2 and 4 of the limit switch interface AXW, and the pins 9 and 10 of the external motor controller ADK are connected to the pins 12 and 1 of the control terminal AKZ.

[0123] In the extended switching control circuit 4, the pin 5 of the external motor controller BDK is connected in series with the fuse FU1 to the T channel, the pins 3 and 4 of the external motor controller BDK are connected to the parallel interface of the fuse FU and the pins 3 and 4 of the motor interface BDJ1, and the pins 1 and 2 of the external motor controller BDK are connected to the pins 2 and 1 of the motor interface BDJ1;

[0124] The pin 6 of the external motor controller BDK is connected to the pin 7 of the control terminal BKZ and the parallel interface of the pins 1, 3 and 5 of the limit switch interface BXW, the pins 7 and 8 of the external motor controller BDK are connected to the pins 2 and 4 of the limit switch interface BXW, and the pins 9 and 10 of the external motor controller BDK are connected to the pins 12 and 1 of the control terminal BKZ.

[0125] When the main switch 1 and the extended switch 2 need to be switched with each other;

[0126] When the A control cabinet fails and needs to be manually switched to the B control cabinet, the switching process is as follows:

[0127] The normally closed point of the running contactor of Control Cabinet A (or the normally closed output signal of the main board's Y point for running) is connected in series with the normally closed point of the brake contactor of Control Cabinet A (or the normally closed output signal of the main board's Y point for the brake), and then connected in series to short-circuit the RB terminal and the COM of the control terminal AKZ (BKZ) → After the switcher moves to the right for a few seconds and stops automatically after reaching the position → Controller B is powered on → Self-check is normal after about 1 minute → The elevator automatically calibrates the hoistway position → The elevator resumes normal operation.

[0128] When a fault occurs in Control Cabinet B and it needs to be manually switched to Control Cabinet A, the switching process is as follows:

[0129] The normally closed point of the running contactor of Control Cabinet B (or the normally closed output signal of the main board's Y point for running) is connected in series with the normally closed point of the brake contactor of Control Cabinet B (or the normally closed output signal of the main board's Y point for the brake), and then connected in series to short-circuit the LA terminal and the COM of the control terminal AKZ (BKZ) → After the switcher moves to the left for a few seconds and stops automatically after reaching the position → Controller A is powered on → Self-check is normal after about 1 minute → The elevator automatically calibrates the hoistway position → The elevator resumes normal operation.

[0130] When superimposing and expanding:

[0131] When connecting QHWL-A and QHWL-B, only the 3-core cable needs to be connected to the ADJ and BDJ ports (the BDJ port is prohibited from being used when superimposing and expanding).

[0132] In summary, for the elevator standby dual-system switcher of the present invention, the set dual-system switching state can, when one control cabinet is damaged, switch between Control Cabinet A and Control Cabinet B in series, so as to achieve the rapid switching of the overall equipment and avoid the elevator being in a maintenance state during subsequent maintenance when one control cabinet is damaged, which affects the use of the elevator.

[0133] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An elevator standby dual-system switcher, characterized in that, It includes a main switch (1) and an expansion switch (2); on the four sides of the main switch (1), four wiring boards are correspondingly arranged, namely circuit boards A1, A2, A3, and A4. The A1, A2, A3, and A4 wiring boards are connected to the main switching control circuit (3) inside the main switch (1); on the four sides of the expansion switch (2), four wiring boards are correspondingly arranged, namely B1, B2, B3, and B4 wiring boards. The B1, B2, B3, and B4 wiring boards are connected to the expansion switching control circuit (4) inside the expansion switch (2). The A1 wiring board is used for arc extinguishing and arc isolation when the circuit board is for hardness support and channel contact; the A2 wiring board is used for leading out the terminal switch signal and the limit signal terminal of the 96-channel small current and the 8-channel large current; the A3 wiring board is used for leading out the motor drive terminal, the 8-channel large current terminal, and the control connection terminal; the A4 wiring board is used for leading out the 96-channel terminal; the B1 wiring board is used for arc extinguishing and arc isolation when the circuit board is for hardness support and channel contact; the B2 wiring board is used for leading out the 168-channel switch and the limit signal terminal; the B3 wiring board is used for leading out the motor drive terminal, the 72-channel terminal, and the control connection terminal; the B4 wiring board is used for leading out the 96-channel terminal. The switching method is that the motor drives the mechanical slide table to switch. The main switching control circuit (3) includes a control terminal AKZ, and the expansion switching control circuit (4) includes a control terminal BKZ. The switching process of manually switching from the A control cabinet to the B control cabinet is as follows: The normally closed point of the A control cabinet running contactor is connected in series with the normally closed point of the A control cabinet brake contactor and then short-circuited to the RB terminal and the COM of the control terminal AKZ or the control terminal BKZ. After the switcher moves to the right for several seconds and stops automatically when in place, the B controller is powered on. After self-checking is normal in 1 minute, the elevator automatically calibrates the hoistway position and the elevator returns to normal. The switching process of manually switching from the B control cabinet to the A control cabinet is as follows: The normally closed point of the B control cabinet running contactor is connected in series with the normally closed point of the B control cabinet brake contactor and then short-circuited to the LA terminal and the COM of the control terminal AKZ or the control terminal BKZ. After the switcher moves to the left for several seconds and stops automatically when in place, the A controller is powered on. After self-checking is normal in 1 minute, the elevator automatically calibrates the hoistway position and the elevator returns to normal.

2. The elevator standby dual-system switcher according to claim 1, characterized in that Pin 5 of the external motor controller ADK in the main switching control circuit (3) is connected in series with a fuse FU1 and connected to the T channel. Pins 3 and 4 of the external motor controller ADK are connected to the parallel interface of the fuse FU and pins 3 and 4 of the motor interface ADJ1. Pins 1 and 2 of the external motor controller ADK are connected to pins 2 and 1 of the motor interface ADJ1. Pin 6 of the external motor controller ADK is connected to pin 7 of the control terminal AKZ and the parallel interface of pins 1, 3, and 5 of the limit switch interface AXW. Pins 7 and 8 of the external motor controller ADK are connected to pins 2 and 4 of the limit switch interface AXW. Pins 9 and 10 of the external motor controller ADK are connected to pins 12 and 1 of the control terminal AKZ.

3. The elevator standby dual-system switcher according to claim 1, characterized in that, In the extended switching control circuit (4), the pin 5 of the externally connected motor controller BDK is connected in series with a fuse FU1 to the T channel. The pins 3 and 4 of the externally connected motor controller BDK are connected to the parallel interface of the fuse FU and the pins 3 and 4 of the motor interface BDJ1. The pins 1 and 2 of the externally connected motor controller BDK are connected to the pins 2 and 1 of the motor interface BDJ1. The pin 6 of the externally connected motor controller BDK is connected to the pin 7 of the control terminal BKZ and the parallel interface of the pins 1, 3, and 5 of the limit switch interface BXW. The pins 7 and 8 of the externally connected motor controller BDK are connected to the pins 2 and 4 of the limit switch interface BXW. The pins 9 and 10 of the externally connected motor controller BDK are connected to the pins 12 and 1 of the control terminal BKZ.

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