CN212875453U - Elevator brake release power supply device - Google Patents
Elevator brake release power supply device Download PDFInfo
- Publication number
- CN212875453U CN212875453U CN202021186074.6U CN202021186074U CN212875453U CN 212875453 U CN212875453 U CN 212875453U CN 202021186074 U CN202021186074 U CN 202021186074U CN 212875453 U CN212875453 U CN 212875453U
- Authority
- CN
- China
- Prior art keywords
- power supply
- circuit
- storage battery
- battery pack
- mcu control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
The utility model relates to an elevator emergency device, and discloses an elevator brake release power supply device, which comprises a three-phase power supply, a power supply switching circuit, a battery intelligent management circuit, a storage battery pack and an MCU control circuit; providing direct-current bus voltage for a power supply circuit, a door machine power supply circuit and a brake power supply output circuit through a storage battery pack; when the elevator power supply system is normal, the battery intelligent management circuit charges the storage battery pack and detects and manages the storage battery pack; when the storage battery pack is electrified, the battery intelligent management circuit monitors the parameters of the electric quantity, the temperature and the internal resistance of the storage battery constantly, and the battery intelligent management circuit sends a signal to the MCU control circuit after monitoring the change of the resistance; the MCU control circuit controls the charging current, the charging time, the discharging current and the discharging time of the storage battery pack according to the received signals. And the service life of the storage battery pack is determined, and when the battery of the storage battery pack is consumed, an updating early warning is sent as soon as possible, so that the elevator brake-releasing power supply device is always in a normal standby state.
Description
Technical Field
The utility model relates to an elevator emergency device has especially related to elevator power supply unit that declutches.
Background
The elevator emergency device on the current market does not have a real-time detection function on the storage battery, and when the emergency device is started after the battery of the storage battery is exhausted, the emergency device cannot be started due to the fact that the storage battery is used up.
Such as the patent names: an elevator electric brake release power supply, application number: CN201721194404.4, application date: 2017-09-18; the utility model discloses a manual floodgate that looses for having computer lab or permanent magnet synchronous machine elevator of no computer lab, including the module that charges, the battery, control module, the module that steps up, sampling module, lock detection circuitry, flat bed detection circuitry and filter output circuit, the input and the commercial power connection of the module that charges, the output and the battery of the module that charges are connected, the battery is connected with the module that steps up, the module that steps up passes through filter output circuit output, control module respectively with the module that charges, sampling module, module and lock detection circuitry that steps up, flat bed detection circuitry and filter output circuit are connected. The utility model discloses rely on the battery to provide electric energy release elevator band-type brake, let the elevator remove to the district that opens the door and reach the function that artifical quick, convenient rescue outside the electric wire netting has a power failure, small, the wiring is simple, can built-in the installation in elevator switch board.
The electric brake release power supply for the elevator in the prior art is provided with the storage battery, is used for providing electric energy to release an elevator brake, and enables the elevator to move slowly to a door opening area to achieve manual quick and convenient rescue, but does not detect and manage the storage battery in real time, and cannot charge in real time under the condition of electric energy consumption of the storage battery.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the electronic brake release power supply of elevator of prior art among the prior art, it installs the battery, a brake for provide electric energy release elevator, let the elevator remove slowly to the district that opens the door reach artifical quick, convenient rescue, but do not carry out real-time detection management to the battery, can not real-time shortcoming of charging under the clean condition of battery electric energy consumption, elevator brake release power supply unit is provided, its power consumptive condition that can real-time control battery, and charge to it and discharge.
In order to solve the technical problem, the utility model discloses a following technical scheme can solve:
the elevator brake release power supply device comprises a three-phase power supply, a power supply switching circuit, a battery intelligent management circuit, a storage battery pack and an MCU control circuit; the three-phase power supply R, S, T and the N end are connected with the input interface of the power supply switching circuit, and the output end R and the N end of the power supply switching circuit are connected with the battery intelligent management circuit;
the output end of the power supply switching circuit is connected with the MCU control circuit, and the MCU control circuit feeds back a power supply switching signal to the power supply switching circuit;
the output end of the battery management circuit is connected with the storage battery pack, and the battery management circuit detects the electric quantity, the temperature and the internal resistance of the storage battery pack;
the output end of the storage battery pack is connected with a working power supply circuit, a door motor power supply circuit and a gate power supply output circuit, and the storage battery pack feeds back the parameters of the storage battery pack to the battery management circuit;
the output end of the working power supply circuit is connected with the MCU control circuit, and the MCU control circuit controls the current of the working power supply circuit.
When the elevator power supply system is normal, the battery intelligent management circuit charges the storage battery pack and detects and manages the storage battery pack;
when the storage battery pack is electrified, the battery intelligent management circuit monitors the parameters of the electric quantity, the temperature and the internal resistance of the storage battery constantly, and the battery intelligent management circuit sends a signal to the MCU control circuit after monitoring the change of the resistance; the MCU control circuit controls the charging current, the charging time, the discharging current and the discharging time of the storage battery pack according to the received signals. And the service life of the storage battery pack is determined, and when the battery of the storage battery pack is consumed, an updating early warning is sent as soon as possible, so that the elevator brake-sending emergency device is always in a normal standby state.
The storage battery pack provides direct-current bus voltage for the power supply circuit, the door machine power supply circuit and the gate power supply output circuit, and the power supply circuit generates required working voltage and provides power.
Preferably, the output end of the MCU control circuit is connected with a brake feedback detection circuit, the output end of the brake feedback detection circuit is connected with the MCU control circuit, and the MCU control circuit feeds back a brake feedback detection signal to the brake feedback detection circuit.
Preferably, the power supply switching circuit is connected with a power failure judging circuit, the power failure judging circuit is connected with a zero-speed starting circuit, and three-phase alternating current is output through the zero-speed starting circuit; the gate power supply output circuit outputs DC110V voltage to the gate;
the brake feedback detection circuit detects a brake release signal and then feeds the brake release signal back to the MCU control circuit, and then the elevator traction machine is started to run stably. Through the brake feedback detection circuit, the situation that the user is required to return to the base station or run towards the heavy load direction and cannot realize the situation due to insufficient driving moment is solved, and the phenomenon that the passenger is frightened again due to sudden shaking during starting is also solved.
Preferably, the battery intelligent management circuit is a buck-boost power management circuit, the chip adopted is LTC4020, and a pin V _ BAT of the chip LTC4020 is connected with a resistor voltage divider, and the resistor voltage divider sets the voltage of the storage battery.
Preferably, the operating power supply circuit is pulse width modulated SWMP by a sine wave. Sine wave pulse width modulation enables the duty ratio of a pulse series to be in a sine rule when pulse width modulation is carried out. When the sine value is at a maximum, the width of the pulses is also at a maximum and the spacing between pulses is at a minimum. Conversely, when the sine value is small, the width of the pulse is small, and the interval between the pulses is large; the modulation precision is high.
Preferably, the storage battery pack is a lead storage battery, and the lead storage battery adopts a 4-step and 3-level charging mode. The 4 steps of charging are trickle charging, constant current charging, constant voltage charging and floating charging.
Preferably, the power consumption circuit is further included, receives the voltage of the gate power supply output circuit and is controlled through the MCU control circuit.
The utility model discloses owing to adopted above technical scheme, have apparent technological effect: the storage battery pack is used for providing direct current bus voltage for the power supply circuit, the door machine power supply circuit and the brake power supply output circuit, and the power supply circuit generates required working voltage and provides power.
When the elevator power supply system is normal, the battery intelligent management circuit charges the storage battery pack and detects and manages the storage battery pack; when the storage battery pack is electrified, the battery intelligent management circuit monitors the parameters of the electric quantity, the temperature and the internal resistance of the storage battery constantly, and the battery intelligent management circuit sends a signal to the MCU control circuit after monitoring the change of the resistance; the MCU control circuit controls the charging current, the charging time, the discharging current and the discharging time of the storage battery pack according to the received signals. And the service life of the storage battery pack is determined, and when the battery of the storage battery pack is consumed, an updating early warning is sent as soon as possible, so that the elevator brake-releasing power supply device is always in a normal standby state.
The utility model discloses a battery intelligent management circuit can greatly prolong storage battery's life, forecasts in advance whether the battery needs to be changed, ensures that the elevator device is in normal operating condition.
Drawings
Fig. 1 is a structure diagram of embodiment 1 of the present invention.
Fig. 2 is a circuit diagram of the battery intelligent management circuit according to the embodiment of the present invention.
Fig. 3 is a structural view of embodiment 2 and embodiment 4 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
The elevator brake release power supply device comprises a three-phase power supply, a power supply switching circuit, a battery intelligent management circuit, a storage battery pack and an MCU control circuit; the three-phase power supply R, S, T and the N end are connected with the input interface of the power supply switching circuit, and the output end R and the N end of the power supply switching circuit are connected with the battery intelligent management circuit;
the output end of the power supply switching circuit is connected with the MCU control circuit, and the MCU control circuit feeds back a power supply switching signal to the power supply switching circuit;
the output end of the battery management circuit is connected with the storage battery pack, and the battery management circuit detects the electric quantity, the temperature and the internal resistance of the storage battery pack;
the output end of the storage battery pack is connected with a working power supply circuit, a door motor power supply circuit and a gate power supply output circuit, and the storage battery pack feeds back the parameters of the storage battery pack to the battery management circuit;
the output end of the working power supply circuit is connected with the MCU control circuit, and the MCU control circuit controls the current of the working power supply circuit.
When the elevator power supply system is normal, the battery intelligent management circuit charges the storage battery pack and detects and manages the storage battery pack;
when the storage battery pack is electrified, the battery intelligent management circuit monitors the parameters of the electric quantity, the temperature and the internal resistance of the storage battery constantly, and the battery intelligent management circuit sends a signal to the MCU control circuit after monitoring the change of the resistance; the MCU control circuit controls the charging current, the charging time, the discharging current and the discharging time of the storage battery pack according to the received signals. And the service life of the storage battery pack is determined, and when the battery of the storage battery pack is consumed, an updating early warning is sent as soon as possible, so that the elevator brake-sending emergency device is always in a normal standby state.
The storage battery pack provides direct-current bus voltage for the power supply circuit, the door machine power supply circuit and the gate power supply output circuit, and the power supply circuit generates required working voltage and provides power.
The battery intelligent management circuit is a voltage reduction and boost type power management circuit, an adopted chip is LTC4020, a pin V _ BAT of the chip LTC4020 is connected with a resistance voltage divider, and the resistance voltage divider sets the voltage of the storage battery.
The working power supply circuit is pulse width modulated by sine wave.
The storage battery pack is a lead storage battery which adopts a 4-step and 3-level charging mode. The 4 steps of charging are trickle charging, constant current charging, constant voltage charging and floating charging.
Example 2
On the basis of embodiment 1, the output end of the MCU control circuit is connected to a gate feedback detection circuit, the output end of the gate feedback detection circuit is connected to the MCU control circuit, and the MCU control circuit feeds back a gate feedback detection signal to the gate feedback detection circuit.
The power supply switching circuit is connected with a power failure judging circuit, the power failure judging circuit is connected with a zero-speed starting circuit, and three-phase alternating current is output through the zero-speed starting circuit; the gate power supply output circuit outputs DC110V voltage to the gate;
the brake feedback detection circuit detects a brake release signal and then feeds the brake release signal back to the MCU control circuit, and then the elevator traction machine is started to run stably. Through the brake feedback detection circuit, the situation that the user is required to return to the base station or run towards the heavy load direction and cannot realize the situation due to insufficient driving moment is solved, and the phenomenon that the passenger is frightened again due to sudden shaking during starting is also solved.
Example 3
On the basis of the above embodiment, this embodiment further explains the principle of the battery management circuit, where the LTC4020 sets the battery voltage through the VFB pin by using an external feedback resistance voltage divider led out from the BAT pin; the power path FET (V1) is in a conducting state during normal battery charging, creating a low impedance between the battery and the buck-boost converter output. The battery charging current is monitored by a sense resistor RCBAT 1. The maximum average battery charge current is determined by the resistance value of RCBAT 1. The dynamic current limit adjustment range is set by the RNG/SS pin.
When the battery pack is in a low state of charge, the LTC4020 automatically configures the FET as a linear regulator, and the buck-boost converter output is boosted above the battery voltage while still providing charging current to the battery. This function is called PowerPath instant on, when the PowerPath FET acts as a high impedance current source responsible for supplying charging current to the battery.
When the battery pack is in a non-charging period, i.e., the buck-boost converter is operating exclusively for the system load, the LTC4020 automatically configures the PowerPath FET as an ideal diode; the battery pack remains disconnected from the converter output during normal operation; the system load current exceeds the supply capability of the buck-boost converter, additional power can be efficiently drawn from the battery pack through the ideal diode.
The LTC4020 has a battery temperature monitoring and controlling function, is connected to an NTC pin through an NTC negative temperature coefficient thermistor, and is disposed in the vicinity of the secondary battery pack, and triggers an NTC fault and stops charging the secondary battery pack if the NTC pin voltage is out of a set voltage range, which is higher than 1.35V or lower than 0.3V.
Example 4
On the basis of the embodiment, the elevator brake-sending emergency device designed by the embodiment is also provided with an energy consumption circuit, and the energy consumption circuit receives the voltage of the brake power supply output circuit and controls the voltage through the MCU control circuit. The energy consumption circuit utilizes the star sealing principle of the synchronous motor to change the resistance value in the traction machine solenoid loop so as to control the solenoid current, thereby achieving the purpose of controlling the reverse moment of the traction machine, enabling the elevator car to slowly move to the flat bed position in the light load direction and evacuating trapped people.
According to the star sealing principle of the motor, when the motor does not rotate electrically, the motor rotates faster and faster due to inertia, but the motor is also in a power generation state when rotating; a star-sealing contactor is added in a three-phase loop of the motor. The motor generates electricity to control the accelerated rotation of the motor, so that the motor rotates at a constant speed and the motor does not rotate faster; when the normally open contact of the main contactor is closed, the normally closed contact of the time relay is closed, so that the coil of the star contactor is electrified, at the moment, the main contactor KM1 and the star contactor are attracted, and the motor is started.
Claims (5)
1. The elevator brake release power supply device comprises a three-phase power supply, a power supply switching circuit, a battery intelligent management circuit, a storage battery pack and an MCU control circuit; the intelligent battery management system is characterized in that the three-phase power supply R, S, T and the N end are connected with the input interface of the power supply switching circuit, and the output end R and the N end of the power supply switching circuit are connected with the intelligent battery management circuit;
the output end of the power supply switching circuit is connected with the MCU control circuit, and the MCU control circuit feeds back a power supply switching signal to the power supply switching circuit;
the output end of the battery management circuit is connected with the storage battery pack, and the battery management circuit detects the electric quantity, the temperature and the internal resistance of the storage battery pack;
the output end of the storage battery pack is connected with a working power supply circuit, a door motor power supply circuit and a gate power supply output circuit, and the storage battery pack feeds back the parameters of the storage battery pack to the battery management circuit;
the output end of the working power supply circuit is connected with the MCU control circuit, and the MCU control circuit controls the current of the working power supply circuit.
2. The elevator brake release power supply device according to claim 1, wherein the output end of the MCU control circuit is connected with a brake feedback detection circuit, the output end of the brake feedback detection circuit is connected with the MCU control circuit, and the MCU control circuit feeds back the brake feedback detection signal to the brake feedback detection circuit.
3. The elevator power supply unit that declutches of claim 1, characterized in that, the battery intelligent management circuit is a step-down and step-up type power management circuit, the chip is LTC4020, and a resistance voltage divider is connected to pin V _ BAT of LTC4020, and the resistance voltage divider adjusts the voltage of the storage battery.
4. The elevator brake release power supply unit according to claim 1, wherein the operating power supply circuit is pulse width modulated by a sine wave.
5. The elevator power supply unit that opens brake of claim 1, characterized by, that the storage battery is the lead accumulator, the lead accumulator adopts 4 step 3 level charging mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021186074.6U CN212875453U (en) | 2020-06-23 | 2020-06-23 | Elevator brake release power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021186074.6U CN212875453U (en) | 2020-06-23 | 2020-06-23 | Elevator brake release power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212875453U true CN212875453U (en) | 2021-04-02 |
Family
ID=75211259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021186074.6U Active CN212875453U (en) | 2020-06-23 | 2020-06-23 | Elevator brake release power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212875453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115196449A (en) * | 2022-07-25 | 2022-10-18 | 苏州安驰控制系统有限公司 | Elevator driving device and elevator system |
-
2020
- 2020-06-23 CN CN202021186074.6U patent/CN212875453U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115196449A (en) * | 2022-07-25 | 2022-10-18 | 苏州安驰控制系统有限公司 | Elevator driving device and elevator system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103973193B (en) | There is the control device of electric motor of electrical storage device and conductive discharge device | |
| CN102647140B (en) | PCM (pulse-code modulation) control based automotive generator voltage regulation method and PCM control based automotive generator voltage regulator | |
| WO2007040948A2 (en) | Rapid charge lithium ion battery charger | |
| CN109286213A (en) | Inverter system controller power optimization | |
| JP4067554B2 (en) | Power storage device | |
| JPH09191565A (en) | Dc distribution system | |
| CN105098967A (en) | Elevator automatic rescuing and energy-saving device, elevator automatic rescuing and energy-saving control method and supercapacitor module | |
| CN215733584U (en) | Starting connecting device and starting power supply | |
| CN106981914A (en) | A kind of vehicle-mounted energy control method and system based on double cell | |
| CN113200004A (en) | Storage battery under-voltage starting device and vehicle starting system | |
| CN212875453U (en) | Elevator brake release power supply device | |
| CN109167425B (en) | Power take-off power generation system and method and charging vehicle | |
| CN104102258A (en) | Circuit in electronic equipment, electronic equipment and method for supplying power for battery of electronic equipment | |
| CN204928347U (en) | Automatic rescue of elevator and economizer and ultracapacitor system module | |
| JP5381360B2 (en) | Power supply | |
| JP6302742B2 (en) | Rechargeable power generation drive system | |
| JP2004336974A (en) | Power supply | |
| Kubade et al. | Regenerative Braking in an Elevator Using Supercapacitor | |
| EP2571150A2 (en) | Power-supply circuit for an electrical appliance having a battery and a dc-to-dc converter | |
| CN109193885B (en) | Control system of photovoltaic energy storage inverter | |
| CN116526531A (en) | Energy storage device and control method thereof | |
| CN215851085U (en) | Storage battery under-voltage starting device and vehicle starting system | |
| CN114655071A (en) | Battery, battery control method and electric vehicle | |
| CN113644717A (en) | Starting connection device, starting power supply and starting method | |
| JP3252709B2 (en) | Electric curtain drive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |