Control device, elevator and control method

Abstract

This application discloses a control device, an elevator, and a control method. The control device includes a first control module and a second control module. The first control module includes a first controller; the second control module includes multiple control lines connected to the first controller. The first controller is configured to control the multiple control lines to be turned on or off, thereby supplying power to the corresponding brakes. When a control line is turned off, it no longer supplies power to the corresponding brake. The brake can apply braking when de-energized and does not apply braking when energized. Compared to controlling the braking and release of the brake through the coordinated on and off action of multiple brake contactors, which has a longer electrical response time, controlling the on and off action of multiple control lines by the first controller to control the braking or non-braking of the brake can reduce the brake's action response time, enabling the brake to apply braking force more promptly.

Description

Technical Field

[0001] This application relates to the field of elevator control technology, and more specifically, to a control device, an elevator, and a control method. Background Technology

[0002] Currently, vertical lifting equipment such as elevators and freight elevators are braked using a brake system. However, this braking method requires multiple brake contactors. The braking and release states of the brake are controlled by connecting and disconnecting the brake contactors. However, the response time of the brake contactors is relatively long, resulting in untimely braking. Summary of the Invention

[0003] This application provides a control device, an elevator, and a control method.

[0004] One embodiment of the control device of this application includes a first control module and a second control module. The first control module includes a first controller; the second control module includes multiple control lines connected to the first controller, the first controller being configured to control the multiple control lines to be turned on or off, the control lines being configured to supply power to a corresponding brake when turned on, and the brake to perform braking when de-energized.

[0005] Another embodiment of the elevator according to this application includes a car, a brake, and a control device. The control device includes a first control module and a second control module. The first control module includes a first controller. The second control module includes multiple control lines connected to the first controller. The first controller is configured to control the multiple control lines to be turned on or off. When the control lines are on, they are configured to supply power to the corresponding brakes. When the power is off, the brakes apply braking force. The brakes are used to brake the car.

[0006] One embodiment of the present application describes a control method applied to a control device, the control device including a first control module and a second control module. The first control module includes a first controller, and the second control module includes multiple control lines. The control method includes controlling the multiple control lines to be turned on or off through the first controller. The control lines are configured to supply power to a corresponding brake when the circuit is turned on, and the brake performs braking when the circuit is turned off.

[0007] The control device, elevator, and control method of this application include a first control module and a second control module. The first control module includes a first controller, and the second control module includes multiple control lines connected to the first controller. The first controller is configured to control the multiple control lines to be on or off. When on, the control lines are configured to supply power to the corresponding brakes; when off, they no longer supply power to the corresponding brakes. The brakes can apply braking force when de-energized and not when energized. Compared to controlling the braking and release of the brakes through the on / off coordination of multiple brake contactors, which has a longer electrical response time, controlling the on / off of multiple control lines by the first controller to control the braking or non-braking of the brakes can reduce the brake's action response time, enabling timely braking.

[0008] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0009] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0010] Figure 1 This is a scene diagram of an elevator according to some embodiments of this application;

[0011] Figure 2 This is a schematic diagram of the structure of the control device according to certain embodiments of this application;

[0012] Figure 3 This is a schematic diagram of the structure of the control device according to certain embodiments of this application;

[0013] Figure 4 This is a schematic diagram of the structure of the control device according to certain embodiments of this application;

[0014] Figure 5 This is a schematic diagram of the structure of the control device according to certain embodiments of this application;

[0015] Figure 6 This is a schematic diagram of the structure of the control device according to certain embodiments of this application;

[0016] Figure 7 This is a schematic diagram of the structure of the control device according to certain embodiments of this application;

[0017] Figure 8 This is a schematic diagram of the structure of the control device according to certain embodiments of this application;

[0018] Figure 9This is a schematic diagram of the structure of the control device according to certain embodiments of this application;

[0019] Figure 10 This is a schematic diagram of the structure of the control device according to certain embodiments of this application.

[0020] Icon labels:

[0021] Elevator 1000, control device 100, first control module 10, first controller 11, safety circuit 12, fourth switch 121, first switch 13, second switch 14, coil of second switch 141, contact of second switch 142, voltage sampling point 15, second control module 20, control line 21, third switch 22, converter 24, second controller 25, driver 26, third control module 30, brake 200, car 300, power supply 400. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0023] Currently, for vertical lifting equipment such as elevators 1000 and freight elevators, when the car 300 of elevator 1000 is carrying 125% of its rated load and running downwards at its rated speed, the brake 200 alone should be able to stop the drive unit from operating. Alternatively, when elevator 1000 malfunctions, a structure is needed to brake the brake 200, for example, by using a holding brake. However, this braking method requires multiple holding brake contactors. The braking and release states of the brake 200 are controlled by connecting and disconnecting the holding brake contactors. However, the response time of the holding brake contactors is relatively long, resulting in the brake 200 not braking in a timely manner.

[0024] Please see Figure 1 and Figure 2 One embodiment of the control device 100 of this application includes a first control module 10 and a second control module 20. The first control module 10 includes a first controller 11; the second control module 20 includes multiple control lines 21 connected to the first controller 11. The first controller 11 is configured to control the multiple control lines 21 to be turned on or off. The control lines 21 are configured to supply power to the corresponding brakes 200 when they are turned on, and to perform braking when the brakes 200 are turned off.

[0025] Among them, the brake 200 can be a bidirectional thrust elevator brake. When the brake 200 is energized, it generates bidirectional electromagnetic thrust, causing the brake 200 to disengage from the car 300. When the power is off, the electromagnetic force disappears, and under the pressure of the external brake spring, a friction brake 200 with power failure braking is formed. The brake 200 is used to brake the car 300 of the elevator 1000.

[0026] Specifically, the control device 100 includes a first control module 10 and a second control module 20. The first control module 10 is used to control the brake 200 to apply pressure in the event of a malfunction in the elevator 1000, or to control the elevator 1000 to rise, fall, or stop during normal operation. The second control module 20 is used to control the energization or de-energization of the brake 200.

[0027] The first control module 10 includes a first controller 11, which can be a microcontroller unit (MCU) of the elevator 1000, used as the main controller of the elevator 1000. For example, the first controller 11 can control the elevator 1000 to rise, fall and stop.

[0028] The second control module 20 includes multiple control lines 21 (such as 1, 2 or 3 control lines 21, etc.), and the control lines 21 can be lines that control the working state of the elevator 1000 brake 200. Multiple control lines 21 can be connected to the first controller 11, enabling the first controller 11 to control the multiple control lines 21 to enter either a disconnected or connected state. The multiple control lines 21 also need to be connected to the brakes 200 of the elevator 1000. For example, multiple control lines 21 can be connected to multiple brakes 200, with each control line 21 connected to one brake 200, thus controlling one brake 200 through one control line 21; or multiple brakes 200 can be connected in series to one control line 21, thus controlling multiple brakes 200 through one control line 21; or multiple control lines 21 can be connected to one brake 200, thus controlling one brake 200 through multiple control lines 21. Even if any control line 21 is disconnected, the brake 200 can still be braked by the other brakes 200. Therefore, the power supply to or power failure of the elevator 1000's brakes 200 is controlled by the connection and disconnection of the control lines 21. For example, when control line 21 is on, it can transmit current to the brake 200 of elevator 1000. At this time, brake 200 is in a released state. It should be noted that the released state of brake 200 means that brake 200 does not brake, and elevator 1000 can operate normally. When control line 21 is off, it cannot transmit current to the brake 200 of elevator 1000. At this time, brake 200 is de-energized and in a braking state. Brake 200 will brake elevator 1000, causing elevator 1000 to stop running.

[0029] Thus, the first control module 10 includes a first controller 11, and the second control module 20 includes multiple control lines 21 connected to the first controller 11. The first controller 11 is configured to control the multiple control lines 21 to be on or off. When on, each control line 21 supplies power to the corresponding brake 200; when off, it stops supplying power to the corresponding brake 200. The brake 200 can brake when de-energized and not brake when energized. Compared to controlling the braking and release of the brake 200 through the on / off coordination of multiple brake contactors, which has a longer electrical response time, controlling the on / off of multiple control lines 21 by the first controller 11 to control the braking or non-braking of the brake 200 reduces the brake 200's response time, allowing for timely braking.

[0030] Please see Figure 2In some embodiments, the first control module 10 further includes a safety circuit 12, a first switch 13, and a second switch 14. The safety circuit 12, the first switch 13, and the second switch 14 are connected in series. A first controller 11 is connected to the first switch 13. The first controller 11 is configured to control the first switch 13 to be turned on or off. When the first switch 13 or the safety circuit 12 is off, the second switch 14 is off; when both the first switch 13 and the safety circuit 12 are on, the second switch 14 is on.

[0031] The power supply 400 is connected to multiple control lines 21 via the second switch 14, and supplies power to the multiple control lines 21 when the second switch 14 is turned on.

[0032] Specifically, the first control module 10 includes a safety circuit 12, a first switch 13, and a second switch 14. The safety circuit 12 can be a safety circuit installed in the elevator 1000. For example, the safety circuit can be a safety switch installed in each safety component of the elevator 1000, with the safety switches connected in series to control a safety relay. The first switch 13 can be a logic control unit of the elevator 1000, or it can be a diode or transistor, etc. The first switch 13 can receive signals from the first controller 11 and control the conduction and disconnection of the first switch 13 through the signals. For example, if the first switch 13 is a diode, when the diode receives a low-level signal from the first controller 11, the diode is in a cutoff state, disconnecting the current in the circuit. The second switching element 14 can be an end relay or contactor of the elevator 1000 safety circuit. Taking a relay as an example, the second switching element 14 also includes a coil 141 and a contact 142. The coil 141 and the contact 142 of the second switching element 14 are connected in series. There can be multiple second switching elements 14, which is not limited here. Multiple second switching elements 14 are connected in series, and the first controller 11 can control the current output of the power supply 400 according to the state of the second switching element 14. The safety circuit 12, the first switching element 13, and the coil 141 of the second switching element are connected in series, so that when the safety circuit 12 or the first switching element 13 is open, the second switching element 14 is open, and when both the safety circuit 12 and the first switching element 13 are on, the second switching element 14 is on.

[0033] Optionally, when the elevator 1000 is in a standby, unused state, a safety check can be performed on the second switch 14. For example, when the clock reaches 1:00 AM, the first controller 11 controls the on / off state of the first switch 13 to energize and de-energize the second switch 14. Thus, the first controller 11 can determine whether the second switch 14 is in a normal and controllable state by monitoring the braking status of the brake 200. During the elevator's standby time, the second switch 14 is kept off. After receiving the elevator 1000's running command, the second switch 14 is kept on, thereby improving the service life of the second switch and enhancing the safety of the elevator 1000.

[0034] The power supply 400 can be the brake power supply of the elevator 1000. The power supply 400 can be an AC power supply or a DC power supply. The power supply 400 is connected to multiple control lines 21 through the second switch 14. When the second switch 14 is in the conducting state, it provides current to the multiple control lines 21, so that the current can be transmitted to the brake 200 of the elevator 1000 through the multiple control lines 21.

[0035] Optionally, when the elevator 1000 needs to stop running, the first controller 11 notifies the power supply 400 to stop supplying power to the control line 21 via bus communication (e.g., bus communication can be UART protocol, SPI protocol, and CAN protocol, etc.). This avoids the need to stop supplying power to the control line 21 using a brake contactor, thus avoiding the problem of arcing of the brake contactor contacts and reducing the noise generated by the brake contactor.

[0036] Optionally, the second control module 20 also includes a converter 24, which may be a thermoelectric converter. The two ends of the converter 24 are respectively connected to the power supply 400 of the elevator 1000 and multiple control lines 21. When the power supply 400 of the elevator 1000 is an AC power supply 400, the AC power flowing through the converter 24 can be converted into DC power by the converter 24, and the converted DC power is transmitted to the brake 200 of the elevator 1000 through multiple control lines 21.

[0037] Thus, by controlling the on or off of the safety circuit 12, the first switch 13, and the second switch 14 included in the first control module 10, the current output from the power supply 400 in the elevator 1000 can be controlled to flow to multiple control lines 21, thereby controlling the power supply 400 to supply power to the brake 200 of the elevator 1000, and reducing the noise in the control equipment 100 of the elevator 1000.

[0038] Please see Figure 3In some embodiments, the first controller 11 is connected to a preset voltage sampling point 15 in the first control module 10. When the safety circuit 12 is disconnected, the voltage of the voltage sampling point 15 is a first preset voltage; when the safety circuit 12 is on, the voltage of the voltage sampling point 15 is a second preset voltage, which is greater than the first preset voltage. The first controller 11 is configured to acquire the voltage of the voltage sampling point 15 and, when the voltage of the voltage sampling point 15 is the first preset voltage, control multiple control lines 21 to disconnect.

[0039] Specifically, a voltage sampling point 15 is preset in the first control module 10. A device for collecting the voltage at the end of the safety circuit 12, such as a sampling chip or a voltmeter, is set at the voltage sampling point 15. The voltage sampling point 15 is set on the line between the safety circuit 12 and the first switch 13, or on the line between the first switch 13 and the second switch 14. The voltage sampling point 15 is connected to the first controller 11, so that the first controller 11 can obtain the voltage at the end of the safety circuit 12 through the voltage sampling point 15. When the safety circuit 12 is disconnected, the first controller 11 obtains the voltage at the sampling point as the first preset voltage. At this time, the first controller 11 can control multiple control lines 21 to disconnect, thereby stopping the multiple control lines 21 from supplying power to the brake 200 of the elevator 1000. When the safety circuit 12 is on, the first controller 11 obtains the voltage at the sampling point as the second preset voltage, and the value of the second preset voltage is greater than the value of the first preset voltage. At this time, the first controller 11 can control multiple control lines 21 to be on, thereby enabling the multiple control lines 21 to supply power to the brake 200 of the elevator 1000.

[0040] Thus, the first controller 11 controls the conduction and disconnection of multiple control lines 21 by detecting the voltage at the voltage sampling point 15. In the event of a sudden disconnection of the safety circuit 12, the first controller 11 monitors the voltage at the end of the safety circuit 12 and stops the multiple control lines 21 from supplying power to the brake 200 of the elevator 1000, shortening the response time of the braking action of the brake 200 of the elevator 1000, and reducing the noise in the control equipment 100 of the elevator 1000.

[0041] Please see Figure 3 In some embodiments, the second control module 20 further includes a plurality of third switches 22, each of which is located in a control line 21. The third switches 22 are configured to control the conduction or disconnection of the corresponding control line 21, and the first controller 11 is configured to control the conduction or disconnection of the plurality of third switches 22.

[0042] Specifically, the second control module 20 includes a third switch 22, which can be a diode, transistor, etc. The number of third switches 22 can be multiple and is not limited here. One or more third switches 22 are respectively disposed on each control line 21, and the third switches 22 are connected to the first controller 11. One or more third switches 22 can control the corresponding control line 21 to be turned on or off, and the first controller 11 can control one or more third switches 22 to be turned on or off, thereby enabling the first controller 11 to control the corresponding control line 21 to be turned on or off by controlling the third switches 22. For example, there are two third switches 22, namely K1 and K2. The control line 21 corresponding to K1 is L1, and the control line 21 corresponding to K2 is L2. L1 supplies power to the brake 200 of the elevator 1000, and L2 supplies power to another brake 200 of the elevator 1000. When elevator 1000 performs a power detection on elevator 1000's brake 2001, the third switch 22K1 is turned on and the third switch 22K2 is turned off. The control circuit 21L1 provides current to the brake 2001, thus obtaining information on the braking status of elevator 1000 by the brake 2001. When elevator 1000 performs a power detection on elevator 1000's brake 2002, the third switch 22K2 is turned on and the third switch 22K1 is turned off. The control circuit 21L2 provides current to the brake 2002, thus obtaining information on the braking status of elevator 1000 by the brake 2002.

[0043] Thus, the first controller 11 controls the corresponding control line 21 to be turned on or off by controlling one or more third switches 22, avoiding the use of the second switch 14 to control the on and off of multiple control lines 21 when the elevator 1000 is in a light load state, thereby improving the service life of the second switch 14 and reducing the noise in the elevator 1000 control equipment 100.

[0044] Please see Figure 4 In some embodiments, the second control module 20 further includes a second controller 25, and a plurality of third switches 22 are connected to the first controller 11 through the second controller 25. The second controller 25 is configured to control the plurality of third switches 22 to be turned on or off upon receiving a first control signal from the first controller 11.

[0045] Specifically, the second control module 20 includes a second controller 25, which can be another microcontroller unit of the elevator 1000, and there can be multiple controllers, which is not limited here. The second controller 25 can be connected to one or more third switches 22 and is connected to the first controller 11, so that the first controller 11 is connected to one or more third switches 22 through the second controller 25. When the second controller 25 receives a first control signal from the first controller 11, it controls one or more third switches 22 to be turned on or off.

[0046] Optionally, the second controller 25 can continuously communicate with the first controller 11. At this time, one or more third switches 22 are in the on state. When the second controller 25 does not receive communication information from the first controller 11, the second controller 25 can control one or more third switches 22 to be turned off.

[0047] Thus, the second controller 25 controls one or more third switches 22 to be turned on or off by receiving the first control signal from the first controller 11. In the event that the first controller 11 fails to control the multiple control lines 21 to be turned on or off, the second controller 25 can complete the connection and disconnection of the elevator 1000 to the multiple control lines 21, thereby shortening the response time of the braking action of the elevator 1000 brake 200 and improving the safety of the elevator 1000 operation.

[0048] Please see Figure 5 In some embodiments, a plurality of third switches 22 are connected to a preset voltage sampling point 15 in the first control module 10. When the voltage at the voltage sampling point 15 is a first preset voltage, one or more of the plurality of third switches 22 are disconnected; when the voltage at the voltage sampling point 15 is a second preset voltage, one or more of the plurality of third switches 22 are turned on, and the second preset voltage is greater than the first preset voltage.

[0049] Specifically, one or more third switches 22 can be connected to a preset voltage sampling point 15 in the first control module 10. When the third switch 22 obtains a voltage at the voltage sampling point 15 that is a first preset voltage, one or more third switches 22 will be disconnected, and one or more control lines 21 will be disconnected, thereby cutting off the DC output of the control line 21 corresponding to the converter 24, and the converter 24 stops supplying power to the brake 200 of the elevator 1000; when the third switch 22 obtains a voltage at the voltage sampling point 15 that is a second preset voltage, one or more third switches 22 will be turned on, and one or more control lines 21 will be turned on, so that the converter 24 can output DC power through the corresponding control line 21 to supply power to the brake 200 of the elevator 1000. For example, the third switch 22 can be a diode. When the diode receives a low level at voltage sampling point 15, the diode is in the off state, and the brake 200 starts to brake the elevator 1000; when the diode receives a high level at voltage sampling point 15, the diode is in the on state, and the brake 200 starts to release the elevator 1000.

[0050] Thus, by detecting the voltage at voltage sampling point 15, the third switch 22 is controlled to turn on and off, thereby controlling the corresponding control line 21 to turn on and off. In the event of a sudden disconnection of safety circuit 12, the third switch 22 monitors the voltage at the end of safety circuit 12 and stops multiple control lines 21 from supplying power to the brake 200 of elevator 1000, thereby shortening the response time of the brake 200 of elevator 1000.

[0051] Please see Figure 6 In some embodiments, the second control module 20 includes a driver 26 connected to a plurality of third switches 22, the driver 26 being configured to control one or more of the plurality of third switches 22 to be turned on or off.

[0052] Specifically, the second control module 20 includes a driver 26, which can be a reverse driver 26. The driver 26 is connected to one or more third switches 22, and the driver 26 is able to control one or more third switches 22 to be turned on or off, thereby controlling the converter 24 to supply power to the elevator 1000 brake 200.

[0053] Thus, by controlling one or more third switches 22 to be turned on or off by the driver 26, it is possible to avoid using the second switch 14 to control the on / off state of multiple control lines 21 when the elevator 1000 is in a light-load state, thereby improving the service life of the second switch 14.

[0054] Please see Figure 7The driver 26 is connected to both the preset voltage sampling point 15 of the first control module 10 and the first controller 11. The driver 26 is configured to control one or more of the plurality of third switches 22 to be turned on or off according to the first control signal of the first controller 11 and / or the voltage of the voltage sampling point 15.

[0055] Specifically, the driver 26 in the second control module 20 can be connected to the voltage sampling point 15 and the first controller 11 in the first control module 10, respectively. The driver 26 can receive the first control signal from the first controller 11 and the voltage of the voltage sampling point 15. Thus, the driver 26 can control one or more of the multiple third switches 22 to be turned on or off according to the first control signal from the first controller 11 and the voltage of the voltage sampling point 15. For example, the driver 26 can be connected to the voltage sampling point 15 and the first controller 11 through an AND gate logic connection. When the driver 26 receives a second preset voltage from the voltage sampling point 15 and the first control signal indicating that it is turned on, the driver 26 can control one or more third switches 22 to be turned on. When the driver 26 receives a first control signal indicating that it is not turned on or the voltage of the voltage sampling point 15 is the first preset voltage, the driver 26 can control one or more third switches 22 to be turned off.

[0056] Thus, by configuring the driver 26 to control one or more of the plurality of third switches 22 to be turned on or off according to the first control signal of the first controller 11 and the voltage of the voltage sampling point 15, the response time of the braking action of the elevator 1000 brake 200 can be shortened and the safety of the elevator 1000 operation can be improved.

[0057] Optionally, please refer to Figure 8 The driver 26 can be connected to the first controller 11; and / or the driver 26 can be connected to the second controller 25; and / or the driver 26 can be connected to a preset voltage sampling point 15.

[0058] Specifically, the driver 26 in the second module can be connected to the first controller 11, and the driver 26 can control the third switch 22 to be turned on and off according to the control information of the first controller 11; and / or the driver 26 can be connected to the second controller 25, and the driver 26 can control the third switch 22 to be turned on and off according to the control information of the second controller 25; and / or the driver 26 can be connected to the voltage sampling point 15, and the driver 26 can control the third switch 22 to be turned on and off according to the voltage of the voltage sampling point 15.

[0059] Please see Figure 9In some embodiments, multiple brakes 200 are connected to a first controller 11, which is configured to acquire the braking status of the multiple brakes 200 and control the output voltage of the power supply 400 in the elevator 1000 according to the braking status.

[0060] Specifically, the elevator 1000 has multiple brakes 200, specifically two or more. All brakes 200 are connected to the first controller 11 via a bus. The first controller 11 can acquire the braking status of the multiple brakes 200, which are either braking or not braking. Based on the braking status of the brakes 200, the first controller 11 can control the output voltage of the power supply 400 in the elevator 1000. For example, when a brake 200 is transitioning from braking to not braking, the power supply 400 in the elevator 1000 uses a starting voltage of 110V; subsequently, when the brake 200 is in the not braking state, the power supply 400 in the elevator 1000 uses a sustaining voltage of 80V.

[0061] Optionally, the first controller 11 controls the power supply 400 in the second control module 20 by issuing a first control signal. At this time, the first control module 10 can determine the braking state of the elevator 1000 brake 200. If the braking state of the brake 200 does not conform to the braking state corresponding to the first control signal, a prompt message is issued. Alternatively, if the braking state of the brake 200 does not conform to the braking state corresponding to the first control signal, the first controller 11 further controls the power supply 400 in the elevator 1000. For example, the first controller 11 controls the first switch 13 to open and the first controller 11 controls the third switch 22 to open.

[0062] Thus, by controlling the output voltage of the power supply 400 in the elevator 1000 according to the braking state, the first controller 11 can form a closed-loop control of the voltage switching of the power supply 400 in the elevator 1000.

[0063] Please refer to it again. Figure 1 and Figure 9 In some embodiments, the control device 100 further includes a third control module 30, through which the first controller 11 is connected to the car 300 of the elevator 1000. The third control module 30 is configured to control the operation of the car 300 according to a second control signal issued by the first controller 11.

[0064] Specifically, the control device 100 includes a third control module 30, which can be the drive inverter of the elevator 1000. The first controller 11 can be connected to the car 300 of the elevator 1000 through the third control module 30. The third control module 30 can control the operation of the car 300 according to the second control signal issued by the first controller 11. For example, the first switch 13 and the second switch 14 are turned on according to the second control signal issued by the first controller 11, so that the power supply 400 in the elevator 1000 inputs current to the control line 21. The control line 21 transmits current to the brake 200, so that the brake 200 is energized. The first controller 11 obtains the braking state of the brake 200 and uses the bus to enable the third control module 30 to control the operation of the car 300 according to the second control signal issued by the first controller 11.

[0065] Please see Figure 10 In some embodiments, the safety circuit 12 includes one or more fourth switches 121 connected in series, such that the safety circuit 12 is disconnected when any of the fourth switches 121 is disconnected.

[0066] Specifically, the safety circuit 12 includes a fourth switch 121, which can be a diode, transistor, etc., and the number of fourth switches 121 can be multiple, which is not limited here. Multiple fourth switches 121 are connected in series in the safety circuit 12, that is, if any one of the multiple fourth switches 121 is turned off, the safety circuit 12 will also be turned off.

[0067] Thus, by connecting one or more fourth switches 121 in series in the safety circuit 12, the safety circuit 12 can be directly disconnected when the elevator 1000 malfunctions, shortening the response time of the brake 200 to issue a braking action.

[0068] Please refer to it again. Figure 1 and Figure 2 An elevator 100 according to one embodiment of this application includes a car 300, a brake 200, and a control device 100. The brake 200 is used to brake the car 300. The control device 100 includes a first control module 10 and a second control module 20. The first control module 10 includes a first controller 11; the second control module 20 includes multiple control lines 21 connected to the first controller 11. The first controller 11 is configured to control the multiple control lines 21 to be turned on or off. The control lines 21 are configured to supply power to the corresponding brake 200 when they are turned on, and the brake 200 performs braking when the power is off.

[0069] One embodiment of the present application describes a control method applied to a control device 100, which includes a first control module 10 and a second control module 20. The first control module 10 includes a first controller 11, and the second control module 20 includes multiple control lines 21. The method includes controlling the multiple control lines 21 to be turned on or off through the first controller 11. The control lines 21 are configured to supply power to the corresponding brake 200 when they are turned on, and the brake 200 performs braking when the power is off.

[0070] Specifically, the control method sends control signals through the first controller 11 to control the on and off of multiple control lines 21. When the first controller 11 controls the multiple control lines 21 to be on, the current in the power supply 400 can be transmitted to the brake 200. When the brake 200 is energized, it can brake the car 300 of the elevator 1000. When the first controller 11 controls the multiple control lines 21 to be off, the current in the power supply 400 cannot be transmitted to the brake 200. When the brake 200 is de-energized, it can release the car 300 of the elevator 1000. Thus, the control method can achieve braking and releasing of the brake 200 through the first controller 11.

[0071] In the description of this specification, the references to terms such as "some embodiments," "in one example," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0072] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this application pertain.

[0073] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A control device, characterized in that, include: The first control module includes a first controller; The second control module includes multiple control lines connected to the first controller. The first controller is configured to control the multiple control lines to be turned on or off. When the control lines are turned on, they supply power to the corresponding brakes. When the brakes are turned off, they apply braking force. The first control module further includes a safety circuit, a first switch, and a second switch, which are connected in series. The first controller is connected to the first switch and is configured to control the first switch to be turned on or off. When the first switch or the safety circuit is off, the second switch is off; when both the first switch and the safety circuit are on, the second switch is on. The power supply is connected to the multiple control lines through the second switch, and supplies power to the multiple control lines when the second switch is turned on. The first controller is connected to a preset voltage sampling point in the first control module. When the safety circuit is disconnected, the voltage of the voltage sampling point is a first preset voltage. When the safety circuit is on, the voltage at the voltage sampling point is a second preset voltage, which is greater than the first preset voltage. The first controller is configured to acquire the voltage of the voltage sampling point, and control the multiple control lines to disconnect when the voltage of the voltage sampling point is a first preset voltage.

2. The control device according to claim 1, characterized in that, The second control module further includes a plurality of third switches, each of which is located in one of the control lines. The third switches are configured to control the conduction or disconnection of the corresponding control line, and the first controller is configured to control the conduction or disconnection of the plurality of third switches.

3. The control device according to claim 2, characterized in that, The third switching device is a diode or a transistor.

4. The control device according to claim 2, characterized in that, The plurality of third switches are connected to the first controller.

5. The control device according to claim 2, characterized in that, The second control module further includes a second controller, and the plurality of third switches are connected to the first controller through the second controller. The second controller is configured to control the plurality of third switches to be turned on or off upon receiving a first control signal from the first controller.

6. The control device according to claim 2, characterized in that, The plurality of third switches are connected to preset voltage sampling points in the first control module. When the voltage at the voltage sampling point is a first preset voltage, one or more of the plurality of third switches are disconnected. When the voltage at the voltage sampling point is a second preset voltage, one or more of the plurality of third switching devices are turned on, and the second preset voltage is greater than the first preset voltage.

7. The control device according to claim 2 or 5, characterized in that, The second control module includes a driver connected to all of the plurality of third switches, the driver being configured to control one or more of the plurality of third switches to be turned on or off.

8. The control device according to claim 7, characterized in that, The driver is connected to both the preset voltage sampling point of the first control module and the first controller. The driver is configured to control one or more of the plurality of third switching devices to be turned on or off according to the first control signal of the first controller and / or the voltage of the voltage sampling point.

9. The control device according to claim 1, characterized in that, The plurality of brakes are all connected to the first controller, which is configured to acquire the braking status of the plurality of brakes and control the output voltage of the power supply of the second control module according to the braking status.

10. The control device according to claim 1, characterized in that, Also includes: The third control module is connected to the elevator car through the first controller. The third control module is configured to control the operation of the car according to the second control signal issued by the first controller.

11. The control device according to claim 1, characterized in that, The safety circuit includes one or more fourth switches connected in series, and the safety circuit is disconnected when any of the fourth switches is turned off.

12. An elevator, characterized in that, The car, the brake, and the control device according to any one of claims 1-9, wherein the brake is used to brake the car.

13. A control method, characterized in that, Applied to the control device according to any one of claims 1-11, the control device comprising a first control module and a second control module, the first control module comprising a first controller, and the second control module comprising multiple control lines, the method comprising: The first controller controls the multiple control lines to be turned on or off. Each of the multiple control lines is connected to a corresponding brake. The control lines are configured to supply power to the corresponding brake when they are turned on, and to apply braking force when the brakes are turned off.

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