Emergency power supply device special for elevator
By designing a battery voltage detection module and a discharge detection module in the elevator emergency power supply device, combined with 485 communication, the problems of inaccurate battery detection and short battery life in the existing technology are solved, and accurate detection and effectiveness of battery power and damage state are achieved. manage.
Patent Information
- Application Number
- CN202420081892.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-12
AI Technical Summary
The battery detection circuit of the existing elevator emergency power supply device uses resistors to judge, which leads to inaccurate detection after a long time of charging and releasing. There may be a problem of the battery being fully charged if the battery is not fully charged, and the battery life is short.
An elevator-specific emergency power supply device including emergency batteries, battery voltage detection module, battery discharge detection module, main control board and emergency state output control module is designed. The battery status can be detected through 485 communication.
It realizes accurate detection of the battery capacity and damage status of the emergency power supply, extends the battery life time, and ensures the accuracy and reliability of power supply charging.
Smart Images
Figure CN222234453U_ABST
Abstract
Description
Technical Field
[0001] The utility model is applied to the technical field of emergency power supply, and particularly relates to an emergency power supply device dedicated to elevators. Background Art
[0002] On the basis of the new national standard power supply, 485 communication and power supply are added to automatically detect the power capacity and upload it to the background monitoring center. Most of them calculate the battery power by detecting the power supply voltage and send it out through the 485 protocol to know the remaining battery power or whether the battery is damaged. When the power supply is inserted into 220v, it will automatically enter the charging state. If the battery exceeds a certain capacity, the charging will stop. When the power supply is in the 220v power-on state, the intercom output port will always have a 12v DC state. If the 220v is disconnected, the emergency output port will have a 12V DC state, and the output undervoltage signal will eventually be sent to the duty room host and the background processing center. Since the voltage detection circuit uses resistors for judgment, and each charge and discharge of the battery will cause the maximum capacity of the battery to be found to be deviated, the voltage detection circuit will no longer be accurate over time, and the battery may be judged to be full when it is not full, so charging will stop. In addition, the battery life is short. Therefore, it is necessary to provide a special emergency power supply device for elevators with a simple structure, which can detect the power of the emergency power supply battery and detect whether it is damaged. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an elevator-specific emergency power supply device which has a simple structure and can detect the power of the emergency power supply battery and find out whether it is damaged.
[0004] The technical solution adopted by the utility model is: the utility model comprises an emergency battery, a battery voltage detection module, a battery discharge detection module, a main control board and an emergency state output control module, the emergency battery is connected to an external power input terminal, the battery voltage detection module is connected with the emergency battery, the battery discharge detection module and the main control board, the main control board is connected with an external host computer via a communication interface, and the main control board outputs a prompt signal via the emergency state output control module.
[0005] It can be seen from the above scheme that the battery discharge detection module is connected back to the single-chip microcomputer circuit, and the emergency state output control module is connected to the car-top auxiliary machine. The present application adds a function that can detect the battery status, such as battery power, battery damage, and finally sends the battery status to the platform through the 485 communication method. The user unit can check the power of the emergency power battery on the platform and whether it is damaged.
[0006] A preferred solution is that the battery voltage detection module includes a first resistor and a second resistor, one end of the first resistor is connected to the emergency battery, one end of the first resistor is grounded via the second resistor, and the CELL_1 pin of the main control board is connected to the node of the first resistor and the second resistor.
[0007] A preferred solution is that the battery discharge detection module includes a third resistor and a fourth resistor, one end of the third resistor is connected to the DischargeD_dete pin of the main control board, and the other end of the third resistor is grounded via the fourth resistor.
[0008] A preferred solution is that the emergency status output control module includes a fifth resistor, a sixth resistor and a connector, the connector is connected to an external emergency light, one end of the fifth resistor is connected to the emergency pin of the connector, the other end of the fifth resistor is grounded via the sixth resistor, and the Emergency_Status pin of the main control board is connected to the node of the fifth resistor and the sixth resistor.
[0009] A preferred solution is that the communication interface includes an isolated power transceiver, and the 485_TX pin and the 485_RX pin of the isolated power transceiver are connected to the corresponding pins of the main control board.
[0010] A preferred solution is that the elevator-specific emergency power supply device also includes a power regulator, and the external power input terminal is connected to the emergency battery via the power regulator. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural block diagram of the utility model;
[0012] Figure 2 is a circuit schematic diagram of the main control board;
[0013] Figure 3 is a cross-sectional view of the battery voltage detection module;
[0014] Figure 4 is a structural schematic diagram of the battery discharge detection module;
[0015] Figure 5 is a structural diagram of the first part of the emergency state output control module;
[0016] Figure 6 is a structural diagram of the second part of the emergency state output control module;
[0017] Figure 7 is a schematic diagram of the structure of the communication interface DETAILED DESCRIPTION
[0018] like Figure 1 and Figure 2 As shown, in this embodiment, the utility model includes an emergency battery 1, a battery voltage detection module 2, a battery discharge detection module 3, a main control board U10 and an emergency state output control module 5. The emergency battery 1 is connected to the external power input terminal T1, the battery voltage detection module 2 is connected to the emergency battery 1, the battery discharge detection module 3, and the main control board U10, the main control board U10 is connected to the external host computer via the communication interface 6, and the main control board U10 outputs a prompt signal via the emergency state output control module 5. The battery voltage detection module 2 is used to determine the battery voltage so as to know the battery power; the emergency state output control module 5 is used to detect emergency situations and will open once the 220v is disconnected; the communication interface 6 adopts 485 communication, which is used to send a battery status signal to the platform at regular intervals, such as: power, failure; the battery discharge detection module 3 is used to detect the state of the battery being discharged.
[0019] like Figure 2 and Figure 3 As shown, in this embodiment, the battery voltage detection module 2 includes a first resistor R51 and a second resistor R54, one end of the first resistor R51 is connected to the emergency battery 1, one end of the first resistor R51 is grounded via the second resistor R54, and the CELL_1 pin of the main control board U10 is connected to the node of the first resistor R51 and the second resistor R54. The model of the main control board U10 is STC15W4K56S4_LQFP_64S.
[0020] like Figure 2 and Figure 4 As shown, in this embodiment, the battery discharge detection module 3 includes a third resistor R17 and a fourth resistor R26, one end of the third resistor R17 is connected to the DischargeD_dete pin of the main control board U10, and the other end of the third resistor R17 is grounded via the fourth resistor R26.
[0021] like Figure 2 , Figure 5 as well as Figure 6As shown, in this embodiment, the emergency state output control module 5 includes a fifth resistor R46, a sixth resistor R49 and a connector CN2, the connector CN2 is connected to the external emergency light, one end of the fifth resistor R46 is connected to the emergency pin of the connector CN2, the other end of the fifth resistor R46 is grounded via the sixth resistor R49, and the Emergency_Status pin of the main control board U10 is connected to the node of the fifth resistor R46 and the sixth resistor R49. The model of the connector CN2 is EU831C-8.25-8P.
[0022] like Figure 2 and Figure 7 As shown, in this embodiment, the communication interface 6 includes an isolated power transceiver U20, and the 485_TX pin and the 485_RX pin of the isolated power transceiver U20 are connected to the corresponding pins of the main control board U10. The model of the isolated power transceiver U20 is RSM485CHT.
[0023] like Figure 1 As shown, in this embodiment, the elevator dedicated emergency power supply device also includes a power regulator U9, and the external power input terminal T1 is connected to the emergency battery 1 through the power regulator U9. The power regulator U9 is XL1509, which is mainly used to supply power to the chip.
Claims
1. An elevator-specific emergency power supply device, characterized in that: It comprises an emergency battery (1), a battery voltage detection module (2), a battery discharge detection module (3), a main control board (U10) and an emergency state output control module (5); the emergency battery (1) is connected to an external power supply input terminal (T1); the battery voltage detection module (2) is connected to the emergency battery (1), the battery discharge detection module (3) and the main control board (U10); the main control board (U10) is connected to an external host computer via a communication interface (6); and the main control board (U10) outputs a prompt signal via the emergency state output control module (5).
2. The elevator-specific emergency power supply device according to claim 1, characterized in that: The battery voltage detection module (2) comprises a first resistor (R51) and a second resistor (R54), one end of the first resistor (R51) is connected to the emergency battery (1), one end of the first resistor (R51) is grounded via the second resistor (R54), and a CELL_1 pin of the main control board (U10) is connected to a node of the first resistor (R51) and the second resistor (R54).
3. The elevator-specific emergency power supply device according to claim 1, characterized in that: The battery discharge detection module (3) comprises a third resistor (R17) and a fourth resistor (R26), one end of the third resistor (R17) is connected to the DischargeD_dete pin of the main control board (U10), and the other end of the third resistor (R17) is grounded via the fourth resistor (R26).
4. The elevator-specific emergency power supply device according to claim 1, characterized in that: The emergency status output control module (5) comprises a fifth resistor (R46), a sixth resistor (R49) and a connector (CN2), wherein the connector (CN2) is connected to an external emergency light, one end of the fifth resistor (R46) is connected to an emergency pin of the connector (CN2), the other end of the fifth resistor (R46) is grounded via the sixth resistor (R49), and the Emergency_Status pin of the main control board (U10) is connected to a node between the fifth resistor (R46) and the sixth resistor (R49).
5. The elevator-specific emergency power supply device according to claim 1, characterized in that: The communication interface (6) comprises an isolated power transceiver (U20), and a 485_TX pin and a 485_RX pin of the isolated power transceiver (U20) are connected to corresponding pins of the main control board (U10).
6. The elevator-specific emergency power supply device according to claim 1, characterized in that: The elevator-specific emergency power supply device also includes a power regulator (U9), and the external power input terminal (T1) is connected to the emergency battery (1) via the power regulator (U9).