Door pocket type control cabinet and electric brake release device for elevator without machine room

Abstract

The utility model relates to the technical field of elevators without machine rooms, in particular to a door pocket type control cabinet and an electric brake release device for an elevator without a machine room. The device comprises a door lock loop, a band-type brake loop arranged in an elevator control cabinet, and an electric brake releasing device, the connector is adopted for connection, and convenience and rapidness are achieved; multiple protection is achieved, during brake release, due to the fact that a door lock switch loop is connected, it is guaranteed that electric brake release can be started only when a car door is closed, personal safety of passengers is guaranteed, a plurality of indicator lamps are arranged, the operation state can be rapidly judged by observing the states of the indicator lamps in the working process, and meanwhile an elevator cannot normally operate even if a plug-in is not inserted into the door lock loop. A worker is prevented from forgetting to insert the plug-in; the electric brake release device is provided with a cycle time relay for controlling a contactor to output intermittently, the brake release speed is slowed down, and safety is ensured; the external power supply can be operated when the elevator is powered off, so that the practicability is high; the electric brake releasing device does not need to be bound with the elevator and is high in flexibility and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of machine room-less elevator technology, specifically to a machine room-less elevator door-type control cabinet and an electric brake release device. Background Technology

[0002] With the booming development of the elevator industry, machine-room-less elevators are increasingly favored because they do not require a machine room. The control cabinet of a machine-room-less elevator is usually placed next to the elevator on the top floor. However, the control cabinet is usually large and cannot be well integrated with the elevator door frame (especially the small door frame), which looks out of place and affects the aesthetics. Therefore, a door frame type control cabinet for machine-room-less elevators has emerged.

[0003] Door-mounted control cabinets are installed inside the elevator's top-floor door frame, primarily for emergency and testing purposes. Electrical components such as frequency converters are housed in a control cabinet within the shaft, achieving the requirement of a machine room-less top-floor interior. However, this design has always been notoriously inconvenient for maintenance. Since most control components are located within the shaft cabinet, a failure in any component—transformer, contactor, frequency converter, mainboard, ARD—will stop the elevator. Especially when transformers or contactors malfunction, leading to passenger entrapment, staff must use an electric brake release mechanism to move the car to the landing position, then use a triangular key to open the landing and car doors to safely release the trapped passengers. However, because the electric brake release circuits are all located within the shaft cabinet, any damage to transformers, contactors, or other components requires climbing ladders or other protective measures to the top of the shaft for repair. This not only consumes a significant amount of time but also poses a considerable danger to maintenance personnel, gradually becoming a major problem with door-mounted control cabinets in the industry.

[0004] like Figure 1 The diagram shows a brake circuit in the prior art. 220L and 200N are introduced from the control transformer as AC220V power supply for the brake coil. KM1 is the running contactor, KM2 is the brake contactor, U1D is a half-wave rectifier board that rectifies AC220V into DC110V for power supply, and BC is the brake.

[0005] like Figure 2 The diagram shows a door lock circuit (including a safety circuit) of an existing design, with the corresponding meanings of the components as follows:

[0006]

[0007]

[0008] Among them, A01 on the main control board is the high-voltage detection input point for the safety circuit, A02 is the high-voltage detection input point for the front car door, A03 is the high-voltage detection input point for the front hall door, A04 is the high-voltage detection input point for the rear hall door, and A05 is the high-voltage detection input point for the rear car door, providing monitoring signals for the control system. Utility Model Content

[0009] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a reasonably designed machine room-less elevator door frame control cabinet and electric brake release device, which can solve the above-mentioned defects.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: it includes a door lock circuit, a brake circuit installed in the elevator control cabinet, and an electric brake release device;

[0011] The brake circuit has a female connector AJ1 and a male connector BJ1, both with six pins. The female connector AJ1 has pins 1, 2, 3, 4, 5, and 6. The male connector BJ1 has pins 1, 2, 3, 4, 5, and 6, corresponding to the female connector AJ1. The two ends of the brake BC are connected to pins 5 and 6 of the male connector, respectively. One of the two output ports of the half-wave rectifier U1D is connected to pin 6 of the female connector, and the other output port is connected to pin 5 of the female connector after passing through the brake contactor.

[0012] In the door lock circuit, the two ends of the front door car door lock KJM1 are connected to the male socket pin 1 and male socket pin 2 respectively, while the female socket pin 1 and female socket pin 2 are connected to the main control board A01 and A02 respectively; the two ends of the rear door car door lock KJM2 are connected to the male socket pin 3 and male socket pin 4 respectively, while the female socket pin 3 and female socket pin 4 are connected to the main control board A04 and A05 respectively.

[0013] The electric brake release device includes a rectifier board U2D for power supply and a female connector AJ2. The front end of the rectifier board U2D is connected to the power supply. The female connector AJ2 has two female connector pins that match the male connector BJ1: pin 1, pin 2, pin 3, pin 4, pin 5, and pin 6. Contactors are connected to the two output ends of the rectifier board U2D. The two main contacts of the contactors are connected to pin 5 and pin 6 of the female connector, respectively. The electric brake release device also includes an intermittent control circuit.

[0014] Preferably, the intermittent control circuit includes a cyclic time relay disposed in the electric brake release device. One end of the power supply is connected to pin 1 of the two-pin connector. Pins 2 and 3 of the two-pin connector are connected. The power supply port of the cyclic time relay and the two coil terminals of the contactor are connected in parallel and connected to the other end of the power supply and pin 4 of the two-pin connector. The normally open contact of the cyclic time relay is connected in series in the circuit between the contactor and pin 4 of the two-pin connector.

[0015] Preferably, the power supply of the electric brake release device is equipped with a circuit breaker.

[0016] Preferably, a power switch is provided behind the circuit breaker, and the connection points of the two female connector pins, the cycle time relay, and the power supply are all located behind the power switch.

[0017] Preferably, a power indicator light and an output indicator light are provided on the power line between the circuit breaker and the power switch, and the auxiliary contacts 13 and 14 of the contactor are connected in series between one end of the output indicator light and the power supply.

[0018] Preferably, a button indicator light is connected to the power supply between the power switch and the rectifier board U2D.

[0019] The beneficial effects of this utility model after adopting the above structure are:

[0020] 1. This application uses a connector to lead the brake coil to the door-type control cabinet (emergency and test operation panel). During normal operation, the connector is plugged in and the elevator runs normally. When using the electric brake release device, the connector is unplugged and the electric brake release device is connected to the brake. The connection is convenient and quick.

[0021] 2. This application disconnects the original door lock circuit and inserts a plug-in. Once the female plug-in bar AJ1 and the male plug-in bar BJ1 are pulled out, the elevator control system disconnects the door lock circuit. If the plug-in is not restored after the elevator has completed the emergency release using the electric brake release device, the elevator will not be able to start, thus ensuring elevator safety.

[0022] 3. The electric brake release device of this application has multiple protections. When releasing the brake, the door lock switch circuit is connected to ensure that the electric brake release can only be started when the car door is closed, thus ensuring the personal safety of passengers. In addition, multiple indicator lights are set up, and the operating status can be quickly judged by observing the status of the indicator lights during operation.

[0023] 4. The electric brake release device of this application has a cyclic time relay to control the intermittent output of the contactor, thereby slowing down the brake release speed to ensure safety, while the speed is adjustable.

[0024] 5. The electric brake release device of this application is easy to operate and uses external power supply. It can use lighting power sockets, other power sockets on site, or mobile temporary power supplies as needed. It can also be operated when the elevator is powered off, making it convenient to operate and highly practical.

[0025] 6. The electric brake release device in this application can be disassembled and installed at any time, so it does not need to be tied to the elevator. Only one set of the device needs to be configured for a project. It is plug-and-play, convenient, flexible and inexpensive. Attached Figure Description

[0026] Figure 1 It is the brake circuit in existing technology;

[0027] Figure 2 It is the door lock circuit in the existing technology;

[0028] Figure 3 This is the brake circuit in this utility model.

[0029] Figure 4 This is the door lock circuit in this utility model;

[0030] Figure 5 This is the electrical schematic diagram of the electric brake release device in this utility model;

[0031] Figure 6 This is the electrical schematic diagram of the electric brake release device in this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 101. One female power strip, one pin; 102. One female power strip, two pins; 103. One female power strip, three pins; 104. One female power strip, four pins; 105. One female power strip, five pins; 106. One female power strip, six pins; 111. Two female power strips, one pin; 112. Two female power strips, two pins; 113. Two female power strips, three pins; 114. Two female power strips, four pins; 115. Two female power strips, five pins; 116. Two female power strips, six pins; 201. Male power strip, one pin; 202. Male power strip, two pins; 203. Male power strip, three pins; 204. Male power strip, four pins; 205. Male power strip, five pins; 206. Male power strip, six pins;

[0034] 1. Circuit breaker; 2. Power switch; 3. Power indicator light; 4. Output indicator light; 5. Push button indicator light; 6. Cyclic time relay; 7. Contactor. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] See Figures 3-5 As shown, it includes a door lock circuit, a brake circuit located in the elevator control cabinet, and an electric brake release device;

[0037] The brake circuit has a female connector AJ1 and a male connector BJ1, both with six pins. The female connector AJ1 has a female connector with pin 101, pin 202, pin 303, pin 404, pin 505, and pin 606. The male connector BJ1 has male connectors with pin 101, pin 202, pin 303, pin 404, pin 505, and pin 606, which correspond to those of the female connector AJ1. The two ends of the brake BC are connected to the male connector pin 505 and male connector pin 606, respectively. One of the two output ports of the half-wave rectifier U1D is connected to the female connector pin 606, and the other output port is connected to the female connector pin 505 through the brake contactor 7.

[0038] In the door lock circuit, the two ends of the front door car door lock KJM1 are connected to the male socket 1 pin 201 and male socket 2 pin 202 respectively, while the female socket 1 pin 101 and female socket 2 pin 102 are connected to the lines of the main control board A01 and A02 respectively; the two ends of the rear door car door lock KJM2 are connected to the male socket 3 pin 203 and male socket 4 pin 204 respectively, while the female socket 3 pin 103 and female socket 4 pin 104 are connected to the lines of the main control board A04 and A05 respectively.

[0039] The electric brake release device includes a rectifier board U2D for power supply and a female connector AJ2. The front end of the rectifier board U2D is connected to the power supply, which uses a two-prong plug for easy connection to a power socket, such as a lighting circuit or temporary power supply. The female connector AJ2 has two female connector pins 111, 112, 113, 114, 115, and 116 that match the male connector BJ1. The two output ends of the rectifier board U2D are connected to a contactor 7. The two main contacts of the contactor 7 are connected to the five-pin 115 and the six-pin 116 of the female connector, respectively. The electric brake release device also includes an intermittent control circuit.

[0040] The intermittent control circuit includes a cyclic time relay 6 located in the electric brake release device. One end of the power supply is connected to pin 111 of the two-pin connector. Pins 112 and 113 of the two-pin connector are connected. The power supply port of the cyclic time relay 6 and the two coil terminals of the contactor 7 are connected in parallel and connected to the other end of the power supply and pin 114 of the two-pin connector. The normally open contact of the cyclic time relay 6 is connected in series in the line between the contactor 7 and pin 114 of the two-pin connector.

[0041] The power supply of the electric brake release device is equipped with a circuit breaker 1, and a power switch 2 is located behind the circuit breaker 1. The power switch 2 includes a rotary switch and a push button connected in series. The connection positions of the two female plug pin 111, the cycle time relay 6 and the power supply are all located behind the power switch 2.

[0042] A power indicator light 3 and an output indicator light 4 are provided on the power line between circuit breaker 1 and power switch 2. The auxiliary contacts 13 and 14 of contactor 7 are connected in series between one end of output indicator light 4 and the power supply. A push button indicator light 5 is connected to the power supply between power switch 2 and rectifier board U2D.

[0043] The principle and usage process of this utility model:

[0044] During normal elevator operation, the female connector AJ1 and male connector BJ1 are connected, and the circuit remains normal. The operating principles of the brake circuit and door lock circuit are the same as those of the elevator. Figures 1-2 The principle is the same as that of the existing technology shown, except that the electric brake release device is placed near the elevator;

[0045] If an elevator malfunctions (such as a transformer failure) or its control circuit, resulting in the inability to start the elevator or even release the brake electrically, the electric brake release device should be removed. In this case, unplug the female connector AJ1 from the door-mounted control cabinet, insert the female connector AJ2 of the electric brake release device into the male connector BJ1, and plug the power plug of the electric brake release device into the socket. At this point, the elevator will... Figure 6 As shown, the front door car door lock KJM1 and the rear door car door lock KJM2 are connected in series to the power supply of contactor 7 and cycle time relay 6;

[0046] Rotate the power switch 2 to On and press the button. If pins 111 to 414 of the two-pin connector are connected, the cycle time relay 6 will be energized and start working, intermittently connecting the contactor 7 coil, which in turn intermittently connects the brake. The elevator car will move slowly up or down depending on the counterweight. By setting the cycle time of the cycle time relay 6, the frequency of connection and disconnection can be controlled, thereby controlling the brake release speed.

[0047] During use, when contactor 7 is engaged, its pins 13 and 14 will conduct, and output indicator light 4 will light up. After contactor 7 coil is de-energized and released, pins 13 and 14 will also disconnect, and output indicator light 4 will turn off. Therefore, the working status of contactor 7 can be observed through output indicator light 4. When contactor 7 becomes stuck, output indicator light 4 will remain on. When contactor 7 cannot be engaged, output indicator light 4 will remain off.

[0048] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A machine room less elevator door pocket type control cabinet and electric brake releasing device, characterized in that: It contains door lock circuit, brake holding circuit arranged in elevator control cabinet and electric brake releasing device; The brake holding circuit is provided with female plug row AJ1 and male plug row BJ1, both of which are six-pin. The female plug row AJ1 is provided with a female plug row one pin (101), a female plug row two pin (102), a female plug row three pin (103), a female plug row four pin (104), a female plug row five pin (105) and a female plug row six pin (106). The male plug row BJ1 is provided with a male plug row one pin (201), a male plug row two pin (202), a male plug row three pin (203), a male plug row four pin (204), a male plug row five pin (205) and a male plug row six pin (206) corresponding to the female plug row AJ1. The two ends of the brake holding BC are connected to the male plug row five pin (205) and the male plug row six pin (206). One of the two output ports of the half-wave rectifier U1D is connected to the female plug row six pin (106), and the other is connected to the female plug row five pin (105) through the brake holding contactor (7). In the door lock circuit, the two ends of the front door car door lock KJM1 are connected to the male plug row one pin (201) and the male plug row two pin (202). The female plug row one pin (101) and the female plug row two pin (102) are connected to the lines of the main control board A01 and A02 respectively. The two ends of the rear door car door lock KJM2 are connected to the male plug row three pin (203) and the male plug row four pin (204). The female plug row three pin (103) and the female plug row four pin (104) are connected to the lines of the main control board A04 and A05 respectively. The electric brake releasing device contains a rectifier board U2D for power supply and a female plug row AJ2. The rectifier board U2D is connected to the power supply at the front end. The female plug row AJ2 is provided with a female plug row one pin (111), a female plug row two pin (112), a female plug row three pin (113), a female plug row four pin (114), a female plug row five pin (115) and a female plug row six pin (116) matching the male plug row BJ1. The two output ends of the rectifier board U2D are connected to the contactor (7). The two main contacts of the contactor (7) are connected to the female plug row five pin (115) and the female plug row six pin (116) respectively. The electric brake releasing device is also provided with an intermittent control circuit.

2. The machine room less elevator door pocket type control cabinet and electric brake releasing device according to claim 1, characterized in that: The intermittent control circuit contains a cycle time relay (6) arranged in the electric brake releasing device. One end of the power supply is connected to the female plug row one pin (111). The female plug row two pin (112) and the female plug row three pin (113) are connected. The power supply port of the cycle time relay (6) and the two coil terminals of the contactor (7) are connected to the other end of the power supply and the female plug row four pin (114) in parallel. The normally open point of the cycle time relay (6) is connected in series between the contactor (7) and the female plug row four pin (114).

3. The machine room less elevator door pocket type control panel and electric brake releasing device according to claim 1, characterized in that: The power supply of the electric brake releasing device is provided with a circuit breaker (1).

4. The machine room less elevator door pocket type control cabinet and electric brake releasing device according to claim 3, characterized in that: The rear of the circuit breaker (1) is provided with a power switch (2). The connection positions of the female plug row one pin (111), the cycle time relay (6) and the power supply are all located behind the power switch (2).

5. A machine room less elevator door pocket type control panel and electric brake releasing device according to claim 4, characterized in that: The power supply line between the circuit breaker (1) and the power switch (2) is provided with a power indicator lamp (3) and an output indicator lamp (4), and the auxiliary contact 13 and 14 of the contactor (7) are connected in series between one end of the output indicator lamp (4) and the power supply.

6. A machine room less elevator door pocket type control panel and electric brake releasing device according to claim 4, characterized in that: The power supply line between the power switch (2) and the rectifier board U2D is connected with a button indicator lamp (5).

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