Electric brake releasing device facilitating rescue operation

Abstract

The utility model belongs to the technical field of elevators, and particularly discloses an electric brake releasing device convenient for rescue operation, which comprises a conversion interface used for being connected with a mobile power supply, one end of the conversion interface is connected with a band-type brake power supply, and one end of the band-type brake power supply is connected with a band-type brake device. According to the utility model, through cooperation of the conversion interface, the band-type brake power supply and the band-type brake device, output of the mobile power supply is converted into a power supply available for the electric brake-releasing device through the conversion interface, when the power supply of the electric brake-releasing device fails, a civil mobile power supply can be searched from places such as residential districts to be connected to the conversion interface, and boosting is carried out through the conversion interface; the power supply is converted into direct current to be directly supplied to the electric brake-releasing device, the electric brake-releasing device is ensured to obtain proper voltage and current, the plug-and-play design is simple and convenient, the existing equipment does not need to be disassembled and modified, the dependence on maintenance personnel is reduced, and the rescue operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an electric brake release device which is convenient for rescue operations. Background Art

[0002] The electric brake release device is a safety device used in elevator systems. Its function is to quickly cut off the current when a fault occurs in the power system to protect the safety of equipment and personnel.

[0003] Because the electric brake remains in the elevator shaft for extended periods, it can experience battery failure. If the brake fails, rescuers will be unable to access the brake in time to reach passengers trapped in the elevator. This can pose a risk and cause significant psychological stress for passengers, undermining trust in the company or its products.

[0004] Current electric brake release devices are typically designed to remain operational during power outages. For example, patent application number 201721565976.9 discloses an electric brake release device comprising a main chip connected to a brake release button, a forced release button, a display screen, a door zone circuit, a first encoder interface circuit, a second encoder interface circuit, and a brake control device. The main chip is also connected to a charging power supply, which is connected to the brake control device. The first encoder interface circuit is connected to a host encoder, and the second encoder interface circuit is connected to a driver encoder. This device can monitor door zone signals and brake release operating speed, making it simple to operate while also enabling precise control of leveling accuracy. Furthermore, this device is stable and reliable.

[0005] However, although the above-mentioned electric brake release devices can still operate during power outages, the maintenance and fault response time of these systems is long and the safety risks involved are high. The current maintenance process includes regular inspection and replacement of batteries, which is not only costly but also inefficient. In order to improve rescue efficiency, the current common solution is to require on-site maintenance personnel to remove the electric brake release device and replace the original faulty battery.

[0006] However, if the rescuers are unaware of the on-site situation, they may not carry spare batteries for replacement, which may result in the inability to rescue the passengers in time. In addition, disassembling the electric brake release device may involve certain risks and endanger the safety of the rescuers. Therefore, we need to propose an electric brake release device that is easy to operate for rescue operations to solve the above problems, so that it can use an external mobile power supply to directly power the electric brake release device, thereby improving the efficiency of elevator passenger rescue operations. Utility Model Content

[0007] The purpose of the utility model is to provide an electric brake release device that is convenient for rescue operations, which can use an external mobile power supply to directly power the electric brake release device, thereby improving the efficiency of elevator passenger rescue operations and solving the problems raised in the background technology.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: an electric brake release device that facilitates rescue operations, comprising a conversion interface for connecting to a mobile power source, one end of the conversion interface being connected to a brake power source, and one end of the brake power source being connected to a brake device;

[0009] The conversion interface includes a DC-DC boost circuit, a rectifier filter circuit and a voltage control circuit for connecting a movable power supply. One end of the DC-DC boost circuit is connected to one end of the rectifier filter circuit, the other end of the rectifier filter circuit is connected to one end of the voltage control circuit, and the other end of the voltage control circuit is connected to the brake power supply.

[0010] Preferably, the DC-DC boost circuit includes a conversion chip U1, a capacitor C2 and a capacitor C1 are connected between the VIN pin and the GND pin of the conversion chip U1, and the capacitor C2 is connected in parallel with the capacitor C1, an inductor L1 is connected between the VIN pin and the SW pin of the conversion chip U1, and a diode D1 is connected to the connection end of the inductor L1 and the SW pin of the conversion chip U1, one end of the diode D1 is connected to a resistor R1, one end of the resistor R1 is connected to a resistor R2 having one end connected to the ground line, the connection end of the resistor R1 and the resistor R2 is connected to the FB pin of the conversion chip U1, the connection end of the diode D1 and the resistor R1 is connected to a capacitor C3 having one end connected to the ground line, and the connection end of the capacitor C3 and the resistor R1 is connected to the rectifier and filter circuit.

[0011] Preferably, the connection end of the capacitor C3 and the resistor R1 is provided with an output end Vout for connecting to a rectifier and filter circuit, and the maximum output voltage of the output end Vout is 30V.

[0012] Preferably, the rectifier and filter circuit includes a rectifier BD1, and capacitors C4, C5 and C6 are connected in parallel between pin 1 and pin 3 of the rectifier BD1. The connecting end of the capacitor C5 and the capacitor C6 is connected to a diode D2 for connecting to the output end Vout, and the rectifier BD1 is connected to a connection terminal J1 for connecting to a voltage control circuit.

[0013] Preferably, the voltage control circuit includes a diode D3 connected to the connection terminal J1, one end of the diode D3 is connected to a resistor R3, one end of the resistor R3 is connected to a resistor VR2 and a ground resistor R5 arranged in series, the connection end of the resistor VR2 and the resistor R3 is connected to a resistor R4 and a ground diode D4 arranged in series, and the connection end of the resistor R3 and the diode D3 is connected to capacitors C10, C9 and C8 arranged in parallel.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model uses a conversion interface to cooperate with the brake power supply and the brake device, and uses the conversion interface to convert the output of the mobile power supply into power that can be used by the electric brake release device. When the power supply of the electric brake release device fails, a civilian mobile power supply can be found in residential areas and other places to connect to the conversion interface. The conversion interface boosts the power supply and converts it into DC power to directly power the electric brake release device, ensuring that the electric brake release device obtains the appropriate voltage and current. The simple plug-and-play design does not require disassembly and modification of existing equipment, reduces dependence on maintenance personnel, and improves the efficiency of rescue operations.

[0016] 2. The utility model can be applied to different mobile power sources through the cooperation of the DC-DC boost circuit, the rectifier filter circuit and the voltage control circuit, and can convert different mobile power sources into the working voltage of the electric release device through the DC-DC boost circuit, thereby improving the convenience and flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a flowchart of the utility model;

[0018] Figure 2 This is a circuit diagram of the DC-DC boost circuit of the utility model;

[0019] Figure 3 This is a circuit diagram of the rectifier and filter circuit of the utility model;

[0020] Figure 4 This is a circuit diagram of the voltage control circuit of the utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 The utility model provides a technical solution: an electric brake release device that is convenient for rescue operations, comprising a conversion interface for connecting to a movable power source, one end of the conversion interface being connected to a brake power source, and one end of the brake power source being connected to a brake device;

[0023] The conversion interface includes a DC-DC boost circuit, a rectifier filter circuit, and a voltage control circuit for connecting to a movable power supply. One end of the DC-DC boost circuit is connected to one end of the rectifier filter circuit, the other end of the rectifier filter circuit is connected to one end of the voltage control circuit, and the other end of the voltage control circuit is connected to the brake power supply.

[0024] The conversion interface is used to convert the output of the mobile power supply into power that can be used by the electric brake release device. When the power supply of the electric brake release device fails, a civilian mobile power supply can be found in residential areas and other places to connect to the conversion interface. The voltage is boosted by the conversion interface and the power is converted into DC power to directly power the electric brake release device, ensuring that the electric brake release device obtains the appropriate voltage and current. The simple plug-and-play design does not require disassembly and modification of existing equipment, reducing dependence on maintenance personnel and improving the efficiency of rescue operations.

[0025] like Figure 2 As shown, the DC-DC boost circuit includes a conversion chip U1, a capacitor C2 and a capacitor C1 are connected between the VIN pin and the GND pin of the conversion chip U1, and the capacitor C2 is connected in parallel with the capacitor C1, an inductor L1 is connected between the VIN pin and the SW pin of the conversion chip U1, and a diode D1 is connected to the connection end of the inductor L1 and the SW pin of the conversion chip U1, one end of the diode D1 is connected to a resistor R1, one end of the resistor R1 is connected to a resistor R2 having one end connected to the ground line, the connection end of the resistor R1 and the resistor R2 is connected to the FB pin of the conversion chip U1, the connection end of the diode D1 and the resistor R1 is connected to a capacitor C3 having one end connected to the ground line, and the connection end of the capacitor C3 and the resistor R1 is connected to the rectifier and filter circuit.

[0026] Through the cooperation of the conversion chip U1 and the peripheral circuit, it can be applied to different mobile power sources, and different mobile power sources can be converted into the working voltage of the electric release device through the DC-DC boost circuit, thereby improving the convenience and flexibility of use.

[0027] The connection end of the capacitor C3 and the resistor R1 is provided with an output end Vout for connecting to a rectifier and filter circuit. The maximum output voltage of the output end Vout is 30V.

[0028] like Figure 3As shown, the rectifier and filter circuit includes a rectifier BD1, and capacitors C4, C5, and C6 are connected in parallel between pins 1 and 3 of the rectifier BD1. The connecting end of the capacitors C5 and C6 is connected to a diode D2 for connecting to the output end Vout. The rectifier BD1 is connected to a connection terminal J1 for connecting to a voltage control circuit.

[0029] Rectifier BD1 converts AC power into pulsating DC power, and then capacitors C4, C5, and C6 are connected in parallel to filter out interference signals. Finally, diode D2 ensures the correct flow of current and interacts with the external circuit through terminal J1.

[0030] like Figure 4 As shown, the voltage control circuit includes a diode D3 connected to the connection terminal J1, one end of the diode D3 is connected to a resistor R3, one end of the resistor R3 is connected to a resistor VR2 and a ground resistor R5 arranged in series, the connection end of the resistor VR2 and the resistor R3 is connected to a resistor R4 and a ground diode D4 arranged in series, and the connection end of the resistor R3 and the diode D3 is connected to capacitors C10, C9, and C8 arranged in parallel;

[0031] When an input voltage is applied to the circuit, it is first processed by diode D3 and the voltage-divider network (composed of resistor R3, resistor VR2, and diode D4 to ground) to produce a relatively stable reference voltage. This reference voltage is then fine-tuned by a further voltage-divider network composed of resistor R4 and diode D4 to ground. Finally, it is filtered by capacitors C10, C9, and C8 to output a smooth and stable DC voltage. By adjusting the resistance value of resistor VR2, the voltage-divider ratio of the voltage-divider network can be changed, thereby adjusting the output voltage.

[0032] Diode D3, diode D4, capacitors C10, C9, C8 and other components work together to ensure that the circuit can maintain stable output performance under different operating conditions, achieving precise control of the input voltage and stable output, so as to ensure that the electric release device can obtain a stable and reliable power supply under various operating conditions.

[0033] It should be noted that the structural principles of the brake device and the brake power supply are respectively the same as those of the brake control device and the charging power supply in the prior art (patent application number 201721565976.9, disclosing an electric brake release device), and will not be described in detail here.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric brake release device that facilitates rescue operations, characterized by: It includes a conversion interface for connecting to a movable power source, one end of the conversion interface is connected to a brake power source, and one end of the brake power source is connected to a brake device; The conversion interface includes a DC-DC boost circuit, a rectifier filter circuit and a voltage control circuit for connecting a movable power supply. One end of the DC-DC boost circuit is connected to one end of the rectifier filter circuit, the other end of the rectifier filter circuit is connected to one end of the voltage control circuit, and the other end of the voltage control circuit is connected to the brake power supply.

2. The electric brake release device for facilitating rescue operations according to claim 1, characterized in that: The DC-DC boost circuit includes a conversion chip U1. A capacitor C2 and a capacitor C1 are connected between the VIN pin and the GND pin of the conversion chip U1, and the capacitor C2 is connected in parallel with the capacitor C1. An inductor L1 is connected between the VIN pin and the SW pin of the conversion chip U1. The connection end of the inductor L1 and the SW pin of the conversion chip U1 is connected to a diode D1. One end of the diode D1 is connected to a resistor R1. One end of the resistor R1 is connected to a resistor R2 having one end connected to the ground wire. The connection end of the resistor R1 and the resistor R2 is connected to the FB pin of the conversion chip U1. The connection end of the diode D1 and the resistor R1 is connected to a capacitor C3 having one end connected to the ground wire. The connection end of the capacitor C3 and the resistor R1 is connected to a rectifier and filter circuit.

3. The electric brake release device for facilitating rescue operations according to claim 2, characterized in that: The connection end of the capacitor C3 and the resistor R1 is provided with an output end Vout for connecting to a rectifier and filter circuit. The maximum output voltage of the output end Vout is 30V.

4. The electric brake release device for facilitating rescue operations according to claim 1, characterized in that: The rectifier and filter circuit includes a rectifier BD1, and capacitors C4, C5, and C6 are connected in parallel between pins 1 and 3 of the rectifier BD1. The connecting end of the capacitors C5 and C6 is connected to a diode D2 for connecting to the output end Vout. The rectifier BD1 is connected to a connection terminal J1 for connecting to a voltage control circuit.

5. The electric brake release device for facilitating rescue operations according to claim 1, characterized in that: The voltage control circuit includes a diode D3 connected to the connection terminal J1, one end of the diode D3 is connected to a resistor R3, one end of the resistor R3 is connected to a resistor VR2 and a ground resistor R5 arranged in series, the connection end of the resistor VR2 and the resistor R3 is connected to a resistor R4 and a ground diode D4 arranged in series, and the connection end of the resistor R3 and the diode D3 is connected to capacitors C10, C9, and C8 arranged in parallel.

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