Charger emergency battery load test equipment
By designing a load testing device for emergency batteries in chargers, and utilizing a multimeter and load switching circuit, the problem of existing technologies being unable to accurately reflect the status of emergency batteries was solved. This enabled rapid detection and efficient screening of faulty batteries, thereby improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 申通阿尔斯通(上海)轨道交通车辆有限公司
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-05
AI Technical Summary
Existing technology cannot accurately reflect the actual condition of emergency batteries, necessitating rework testing on trains, which wastes time and resources.
A test device for emergency batteries of chargers under load was designed, which includes a multimeter and a load. The load state can be switched by a selector switch to realize the test circuit with and without load. The voltage and current parameters are monitored in real time using indicator lights and a multimeter.
It enables rapid determination of battery status, avoids rework, improves work efficiency, and has a simple, portable, and low-cost structure.
Smart Images
Figure CN224328214U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charger emergency battery load testing technology, specifically a charger emergency battery load testing device. Background Technology
[0002] The existing technical solution is to directly measure the voltage with a multimeter. However, since no load is applied to the emergency battery, it cannot accurately reflect the actual state of the battery. It is necessary to test the emergency battery under real working conditions by installing it on the train. If the test is abnormal, rework is required, which will cost a lot of rework time.
[0003] To address the shortcomings of traditional solutions, and considering the specific production conditions on-site, we propose an emergency battery load testing device for chargers, which can quickly complete the status detection of batteries. Utility Model Content
[0004] The purpose of this invention is to provide a charger emergency battery under load testing device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A charger emergency battery under load testing device includes a main body. Inside the main body are two multimeters, one and two, with their indicators extending to the outside of the main body. Indicator lights one and two are fixedly mounted on the front of the main body and electrically connected to the multimeters, respectively. A load is installed inside the main body and electrically connected to the multimeter. A selector switch is fixedly mounted on the front of the main body, and a connecting wire is fixedly mounted on the back of the main body. One end of the connecting wire is fixedly connected to a connector, which is connected to the emergency battery.
[0007] Preferably, the changeover switch has three positions: load, no load, and no load.
[0008] Preferably, a handle is fixedly installed on the upper surface of the main body of the equipment.
[0009] Preferably, the emergency battery, the changeover switch, and the multimeter form a non-load circuit, and the indicator light is connected in parallel to this circuit.
[0010] Preferably, the emergency battery, the changeover switch, and the second multimeter form a load circuit, and the second indicator light and the load are connected in parallel in this circuit.
[0011] Compared with the prior art, this utility model provides a charger emergency battery under load testing device, which has the following beneficial effects:
[0012] 1. This charger emergency battery load testing equipment and testing fixture can realize the function of load testing of charger emergency batteries, and can quickly judge the battery status. The device has a simple structure, is lightweight and easy to carry, and has low operating costs.
[0013] 2. The charger's emergency battery is equipped with a load testing device. By quickly judging the battery status, faulty charger emergency batteries can be effectively screened out, avoiding rework caused by charger emergency battery failure and improving work efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is the circuit diagram of this utility model.
[0016] In the diagram: 1. Main body of the equipment; 2. Changeover switch; 3. Multimeter 1; 4. Multimeter 2; 5. Indicator light 1; 6. Indicator light 2; 7. Handle; 8. Connecting wire; 9. Connector; 10. Emergency battery; 11. Load. Detailed Implementation
[0017] Please see Figure 1-2 A charger emergency battery under load testing device includes a main body 1. A multimeter 3 and a multimeter 4 are installed inside the main body 1, with their indicators extending to the outside of the main body 1. An indicator light 5 and an indicator light 6 are fixedly installed on the front of the main body 1, respectively, and are electrically connected to the multimeter 3 and the multimeter 4. A load 11 is installed inside the main body 1, and is electrically connected to the multimeter 4. A changeover switch 2 is fixedly installed on the front of the main body 1, and a connecting wire 8 is fixedly installed on the back of the main body 1. One end of the connecting wire 8 is fixedly connected to a connector 9, which is connected to an emergency battery 10.
[0018] A high-power adjustable resistor can be used as the load.
[0019] The device body 1 has a handle 7 fixedly installed on its upper surface, which allows staff to lift the device for easy carrying.
[0020] Furthermore, the changeover switch 2 is equipped with three positions: load, no load, and no load, which can be switched according to testing requirements.
[0021] See Figure 2 Emergency battery 10, changeover switch 2, and multimeter 3 form a non-load circuit, and indicator light 5 is connected in parallel to this circuit;
[0022] The operator switches the selector switch 2 to the "no load" position. At this point, the emergency power supply 10, selector switch 2, and multimeter 3 form a no-load test circuit. Indicator light 5 is connected in parallel with this circuit. The no-load test is mainly used to check the basic output performance of the emergency power supply 10, such as no-load voltage and no-load current. Multimeter 3 monitors and displays the current, voltage, and other parameters in the circuit in real time. The operator can make a preliminary judgment on whether the output performance of the emergency power supply 10 is normal by observing the reading of multimeter 3 and the status of indicator light 5.
[0023] See Figure 2 Emergency battery 10, changeover switch 2, and multimeter 4 form a load circuit, and indicator light 6 and load 11 are connected in parallel in this circuit;
[0024] The operator switches the selector switch 2 to the "load" position, forming a load-bearing test circuit with the emergency power supply 10, selector switch 2, and multimeter 4. Indicator light 6 and load 11 are connected in parallel in this circuit. The load test simulates the load conditions of the emergency battery in actual operation, testing its load-bearing capacity and output stability. Multimeter 4 monitors and displays parameters such as current, voltage, and power in the circuit, while indicator light 6 indicates the circuit's operating status. The operator can evaluate the performance of the emergency power supply 10 under load conditions based on the reading of multimeter 4 and the status of indicator light 6, such as whether it can stably output rated power and whether overload protection will occur.
[0025] This device is used for testing emergency batteries in the chargers of subway trains such as 09A01, 09A02, and 07A01 during maintenance. This device adds a load to the battery, which can accurately reflect the battery voltage. It is no longer limited by factors such as site or vehicle condition. The device is lightweight and easy to carry, thereby improving production efficiency.
[0026] Working principle: This charger is an emergency battery load testing device. Connect the emergency power supply 10 to the connection line of the testing device through the connector 9 to ensure a firm and reliable connection. Select the required test mode through the selector switch 2. The selector switch 2 has three positions: load, empty, and no load, which can be switched according to the test requirements.
[0027] Switch the selector switch 2 to the "no load" position. At this time, the emergency power supply 10, selector switch 2, and multimeter 3 form a no-load test circuit. Indicator light 5 is connected in parallel to this circuit. The no-load test is mainly used to detect the basic output performance of the emergency power supply 10, such as no-load voltage and no-load current. Multimeter 3 monitors and displays the current, voltage, and other parameters in the circuit in real time. Operators can make a preliminary judgment on whether the output performance of the emergency power supply 10 is normal by observing the reading of multimeter 3 and the status of indicator light 5.
[0028] Switch the selector switch 2 to the "load" position. The emergency power supply 10, selector switch 2, and multimeter 4 form a load-bearing test circuit. Indicator light 6 and load 11 are connected in parallel in this circuit. The load test is used to simulate the load conditions of the emergency battery in actual operation, and to test its load-bearing capacity and output stability. Multimeter 4 monitors and displays parameters such as current, voltage, and power in the circuit. Indicator light 6 indicates the operating status of the circuit. The operator can evaluate the performance of the emergency power supply 10 under load conditions based on the reading of multimeter 4 and the status of indicator light 6, such as whether it can stably output the rated power and whether overload protection will occur.
[0029] After the test, the staff turned the switch 2 to the "neutral" position to disconnect the circuit, making it easier to disconnect the device from the emergency battery 10.
Claims
1. A charger emergency battery under load testing device, comprising a main body (1), characterized in that: The device body (1) is equipped with a multimeter 1 (3) and a multimeter 2 (4) inside. The indicators of the multimeter 1 (3) and the multimeter 2 (4) extend to the outside of the device body (1). The front of the device body (1) is fixedly equipped with an indicator light 1 (5) and an indicator light 2 (6). The indicator light 1 (5) and the indicator light 2 (6) are electrically connected to the multimeter 1 (3) and the multimeter 2 (4) respectively. The device body (1) is equipped with a load (11) inside. The load (11) is electrically connected to the multimeter 2 (4). The front of the device body (1) is fixedly equipped with a changeover switch (2). The back of the device body (1) is fixedly equipped with a connecting wire (8). One end of the connecting wire (8) is fixedly connected to a connector (9). The connector (9) is connected to an emergency battery (10).
2. The charger emergency battery under load testing device according to claim 1, characterized in that: The changeover switch (2) has three positions: load, no load, and no load.
3. The charger emergency battery under load testing device according to claim 1, characterized in that: A handle (7) is fixedly installed on the upper surface of the main body (1) of the device.
4. The charger emergency battery under load testing device according to claim 1, characterized in that: The emergency battery (10), the changeover switch (2), and the multimeter (3) form a non-load circuit, and the indicator light (5) is connected in parallel to this circuit.
5. The charger emergency battery under load testing device according to claim 1, characterized in that: The emergency battery (10), the changeover switch (2), and the multimeter (4) form a load circuit, and the indicator light (6) and the load (11) are connected in parallel on this circuit.