CN207490067U - A kind of valve-regulated lead-acid battery on-Line Monitor Device - Google Patents

Abstract

The utility model discloses an on-line monitoring device for a valve-controlled lead-acid storage battery, which comprises a circuit structure for collecting and processing the voltage and current of the battery to be tested, and also includes a casing and a current sensor, and a display is installed on the outer wall of the casing. Screen, power input port and bus output interface, and a circuit structure is installed inside the housing, and the circuit structure is also connected to the power input port, display screen and bus output interface through wires, and an integrated memory card slot is also set on the circuit structure. slot; the current sensor is also connected to the power input port, the current sensor is also provided with a port connected to the battery under test, and the power input port is also provided with a port connected to the positive and negative poles of the battery under test. Through the above-mentioned structure, the utility model has the advantages of simple structure, strong portability, quick measurement of storage battery capacity, and avoids the problem of long-term use of detection equipment in the process of troubleshooting, which easily leads to the problem of battery over-discharge.

Description

A valve-regulated lead-acid battery online monitoring device

technical field

The utility model relates to the technical field of accumulators, in particular to an online monitoring device for a valve-regulated lead-acid accumulator.

Background technique

Lead-acid battery was invented by G.Plante in 1859. It has experienced nearly 160 years of development, and it has made great progress in terms of product types and varieties, and product electrical performance. Whether it is in transportation, communication, electric power, military or in various economic fields of navigation and aviation, lead-acid batteries have played an indispensable and important role.

By the beginning of the 20th century, lead-acid batteries had undergone many major improvements, improving performance such as energy density, cycle life, and high-rate discharge. However, open-type lead-acid batteries have two main disadvantages: ① water will be decomposed into hydrogen and oxygen gas at the end of charging, and acid and water need to be added frequently, and maintenance work is heavy; ② when the gas overflows, it carries acid mist, which will corrode the surrounding equipment. And pollute the environment, thereby limiting the application of batteries in some occasions. In the past two decades, in order to solve the above two problems, countries around the world have been competing to develop sealed lead-acid batteries, hoping to achieve battery sealing and obtain clean green energy, thus inventing the valve-regulated lead-acid battery.

Valve-regulated lead-acid batteries are widely used in automobiles, UPS and other fields. Once the valve-regulated lead-acid battery is aging or damaged, it will bring a lot of inconvenience to the user, and even cause serious damage. By regularly testing the remaining capacity and performance of lead-acid batteries, potential safety hazards can be discovered as early as possible, thereby effectively avoiding accidents. However, the current battery power sensor installed on the car can only detect the voltage signal of the battery; the UPS equipment can only detect information such as voltage and power, but cannot detect the remaining capacity of the battery and cannot judge the performance status of the battery.

Utility model content

The technical problem to be solved by the utility model is to realize rapid measurement of battery capacity, and the purpose is to provide an online monitoring device for a valve-regulated lead-acid battery. In the process of troubleshooting, it takes a long time to use the testing equipment, which may easily lead to the problem of battery over-discharge.

The utility model is realized through the following technical solutions:

An on-line monitoring device for a valve-regulated lead-acid battery, including a circuit structure for collecting and processing the voltage and current of the battery under test, and also includes a housing and a current sensor, and a display screen and a power input port are installed on the outer wall of the housing and the bus output interface, a circuit structure is also installed inside the housing, and the circuit structure is also connected to the power input port, the display screen and the bus output interface through wires, and a memory card slot with an integrated structure is also set on the circuit structure; the current The sensor is also connected to the power input port, the current sensor is also provided with a port connected with the battery under test, and the power input port is also provided with a port connected with the positive and negative poles of the battery under test. In this scheme, the circuit structure can collect the current voltage of the battery through the power input port, and realize timely detection of the charging or discharging current through the external current sensor to the common terminal of the charging input and discharging output of the battery, and then output the charging or discharging current through the power supply The output is transmitted to the circuit structure, and the circuit structure can calculate the current battery capacity according to the corresponding relationship between the current and the voltage, so as to realize the fast and accurate detection of the battery capacity. The device detects the charging or discharging current quickly and conveniently through the setting of the current sensor, power input port and bus interface, and the final measurement result can also be output through the bus output interface. The device has simple structure, strong portability, and fast measurement output. Accurate, avoiding the problem of using the testing equipment for a long time during the troubleshooting process, which may easily lead to the problem of battery over-discharge.

Preferably, it also includes a test clip for clamping the battery under test, and terminals connected to the positive and negative poles of the battery under test are arranged on the test clip.

Preferably, the test clip includes a load, and the two ends of the load are sequentially connected to the positive and negative poles of the engine output.

Preferably, the circuit structure includes a current sensor signal processing unit, a battery voltage signal processing unit, an A/D conversion unit, a microcontroller, a display control unit, a USB storage control unit, a CAN bus control unit, a temperature detection unit, A/D The D conversion unit, the display control unit, the USB storage control unit and the CAN bus control unit are all connected to the microcontroller, and the current sensor signal processing unit, battery voltage signal processing unit and temperature detection unit are all connected to the A/D conversion unit. The current sensor signal processing unit and the battery voltage signal processing unit collect the input and output voltage and current of the battery, and the temperature detection unit detects the ambient temperature of the battery under test and the detection unit; transmits it to the A/D conversion unit and converts it into a digital signal; The controller calculates the capacity, life and other related characteristic indicators by receiving the digital signal transmitted by the A/D conversion unit; and transmits the calculation result to the USB storage control unit and the CAN bus control unit; the USB storage control unit calculates the characteristic parameters according to The fixed format is saved on the USB device, and the CAN bus control unit transmits the signal to the CAN bus.

The test clip reads the current voltage of the battery from the positive and negative poles of the battery in a timely manner, and detects the charging or discharging current in a timely manner through an external current sensor to the common terminal of the charging input and discharging output of the battery; the microcontroller strictly corresponds to the timely voltage and Corresponding relation of current, calculate the change relationship of the current battery capacity through the integral of the current in time, and calculate the current battery capacity by the data stored in the microcontroller and the change of its capacity, the process is processed by the microcontroller The data can be realized by using the existing microcontroller, which is not where the improvement of this application document lies. According to a large number of test data at home and abroad, we know that when the capacity of the battery is increased to a certain level, the life of the battery will be reduced once, and there is a one-to-one correspondence between the capacity and life of the battery. The device detects the charging or discharging current quickly and conveniently through the setting of the current sensor, power input port and bus interface, and the final measurement result can also be output through the bus output interface. The device is also simple in structure, strong in portability, and fast and accurate in measurement. , Avoid the problem of using the testing equipment for a long time during the troubleshooting process, which may easily lead to the problem of battery over-discharge.

Preferably, a reset button is also provided on the outer wall of the housing, and the reset button is connected with the circuit structure.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

The utility model detects the charging or discharging current quickly and conveniently through the setting of the current sensor, the power input port and the bus interface, so as to realize the rapid measurement of the battery capacity, and the final measurement result can also be output through the bus output interface. The structure is simple, the portability is strong, the measurement output is fast and accurate, and the problem of using the detection equipment for a long time in the troubleshooting process and easily causing the battery to be over-discharged is avoided.

Description of drawings

The drawings described here are used to provide a further understanding of the embodiments of the utility model, constitute a part of the application, and do not constitute a limitation to the embodiments of the utility model. In the attached picture:

Fig. 1 is the structural representation of the utility model;

Figure 2 is a block diagram of the circuit structure.

Marks and corresponding parts names in the attached drawings:

1. Shell; 2. Current sensor; 3. Display screen; 4. Test clip; 5. Power input port; 6. Memory card slot; 7. Bus output interface; 8. Circuit structure; 9. Battery under test; 10. Reset button.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the examples and accompanying drawings. The schematic implementation of the utility model and its description are only used to explain the utility model Novelty, not as a limitation to the utility model.

Example 1:

As shown in Figure 1-2, the utility model includes an online monitoring device for a valve-regulated lead-acid battery, including a circuit structure 8 for collecting and processing the voltage and current of the battery 9 under test, and also includes a housing 1 and a current sensor 2. A display screen 3, a power input port 5 and a bus output interface 7 are also installed on the outer wall of the housing 1, and a circuit structure 8 is also installed inside the housing 1, and the circuit structure 8 is also connected to the power input port 5, display The screen 3 is connected to the bus output interface 7, and a memory card slot 6 of integrated structure is also set on the circuit structure 8; the current sensor 2 is also connected to the power input port 5, and the battery under test 9 is also set on the current sensor 2. As for the connected port, a port connected to the positive and negative poles of the tested battery 9 is also provided on the power input port 5 .

In this scheme, the circuit structure can collect the current voltage of the battery through the power input port, and realize timely detection of the charging or discharging current through the external current sensor to the common terminal of the charging input and discharging output of the battery, and then output the charging or discharging current through the power supply The output is transmitted to the circuit structure, and the circuit structure can calculate the current battery capacity according to the corresponding relationship between the current and the voltage, so as to realize the fast and accurate detection of the battery capacity. The device detects the charging or discharging current quickly and conveniently through the setting of the current sensor, the power input port and the bus interface, so as to realize the rapid measurement of the battery capacity, and the final measurement result can also be output through the bus output interface. The structure of the device Simple, strong portability, fast and accurate measurement output, avoiding the problem of using the detection equipment for a long time during the troubleshooting process and easily causing the battery to be over-discharged.

Example 2:

This embodiment is preferably as follows on the basis of Embodiment 1: It also includes a test clip 4 for clamping the battery 9 under test, and the test clip 4 is provided with terminals connected to the positive and negative poles of the battery 9 under test. Clamp the battery to be tested with a test clip to prevent the battery under test from moving, and the detection effect is more accurate.

The test clip 4 includes a load, and the two ends of the load are sequentially connected to the positive and negative poles of the engine output.

The circuit structure 8 includes a current sensor signal processing unit, a battery voltage signal processing unit, an A/D conversion unit, a microcontroller, a display control unit, a USB storage control unit, a CAN bus control unit, a temperature detection unit, and an A/D conversion unit. The unit, the display control unit, the USB storage control unit and the CAN bus control unit are all connected to the microcontroller, and the current sensor signal processing unit, battery voltage signal processing unit and temperature detection unit are all connected to the A/D conversion unit.

The current sensor signal processing unit amplifies and filters the output signal of the current sensor (charging current and discharging current of the lead-acid battery) and transmits it to the A/D conversion unit;

The battery voltage signal processing unit, which amplifies and filters the battery voltage signal (charging voltage and discharging voltage) and then transmits it to the A/D conversion unit;

The temperature detection unit receives the signal output by the temperature sensor, converts it into an electrical signal, amplifies it, filters it, and then transmits it to the A/D conversion unit;

The A/D conversion unit converts the analog signals transmitted by the current sensor signal processing unit, the battery voltage signal processing unit, and the temperature detection unit into digital signals and transmits them to the microcontroller;

Microcontroller, processing the digital signal transmitted by the A/D conversion unit, and calculating the battery capacity, life, etc., after the calculation is completed, the result is transmitted to the display control unit, USB storage control unit and CAN bus control unit;

The display control unit receives the data transmitted by the micro-controller and displays it in time-sharing and partition;

The USB storage control unit receives the data transmitted by the microcontroller and saves it, and writes the data stored in the current memory into the USB storage device when the external USB device is plugged into the interface;

The CAN bus control unit receives the data transmitted by the microcontroller, repackages and combines the data and sends it to the CAN bus.

The current sensor signal processing unit and the battery voltage signal processing unit collect the input and output voltage and current of the battery, and the temperature detection unit detects the ambient temperature of the battery under test and the detection unit; transmits it to the A/D conversion unit and converts it into a digital signal; The controller calculates the capacity, life and other related characteristic indicators by receiving the digital signal transmitted by the A/D conversion unit; and transmits the calculation result to the USB storage control unit and the CAN bus control unit; the USB storage control unit calculates the characteristic parameters according to The fixed format is saved on the USB device, and the CAN bus control unit transmits the signal to the CAN bus.

The test clip reads the current voltage of the battery from the positive and negative poles of the battery in a timely manner, and detects the charging or discharging current in a timely manner through an external current sensor to the common terminal of the charging input and discharging output of the battery; the microcontroller strictly corresponds to the timely voltage and Corresponding relation of current, calculate the change relationship of the current battery capacity through the integral of the current in time, and calculate the current battery capacity by the data stored in the microcontroller and the change of its capacity, the process is processed by the microcontroller The data can be realized by using the existing microcontroller, which is not where the improvement of this application document lies. According to a large number of test data at home and abroad, we know that when the capacity of the battery is increased to a certain level, the life of the battery will be reduced once, and there is a one-to-one correspondence between the capacity and life of the battery. The device detects the charging or discharging current quickly and conveniently through the setting of the current sensor, power input port and bus interface, and the final measurement result can also be output through the bus output interface. The device is also simple in structure, strong in portability, and fast and accurate in measurement. , Avoid the problem of using the testing equipment for a long time during the troubleshooting process, which may easily lead to the problem of battery over-discharge.

A reset button 10 is also arranged on the outer wall of the housing 1 , and the reset button 10 is connected to the circuit structure 8 . The reset button is set for easy operation.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present utility model in detail. Within the protection scope of the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims (5)

1. A valve-regulated lead-acid storage battery on-line monitoring device, comprising a circuit structure (8) for collecting and processing the voltage and current of the battery under test (9), characterized in that it also includes a housing (1) and a current sensor (2), a display screen (3), a power input port (5) and a bus output interface (7) are also installed on the outer wall of the housing (1), and a circuit structure (8) is also installed inside the housing (1) , the circuit structure (8) is also connected with the power input port (5), the display screen (3) and the bus output interface (7) through wires, and the memory card slot (6) of an integrated structure is also set on the circuit structure (8) ; The current sensor (2) is also connected with the power input port (5), and the port connected with the battery under test (9) is also set on the current sensor (2), and the port connected with the tested battery (9) is also set on the power input port (5). Test the terminal where the positive and negative poles of the battery (9) are connected. 2. A kind of valve-regulated lead-acid storage battery online monitoring device according to claim 1, is characterized in that, also comprises the test clip (4) that is used to clamp tested battery (9), is set on the test clip (4) Terminals connected to the positive and negative poles of the battery under test (9). 3. The on-line monitoring device for a valve-regulated lead-acid battery according to claim 2, wherein the test clip (4) includes a load, and the two ends of the load are sequentially connected to the positive and negative poles of the engine output. 4. A kind of valve-regulated lead-acid battery online monitoring device according to claim 1, is characterized in that, described circuit structure (8) comprises current sensor signal processing unit, battery voltage signal processing unit, A/D conversion unit, Microcontroller, display control unit, USB storage control unit, CAN bus control unit, temperature detection unit, A/D conversion unit, display control unit, USB storage control unit and CAN bus control unit are all connected with microcontroller, current sensor The signal processing unit, battery voltage signal processing unit and temperature detection unit are all connected with the A/D conversion unit. 5. A kind of valve-regulated lead-acid storage battery online monitoring device according to claim 1, is characterized in that, reset button (10) is also set on the outer wall of described casing (1), and reset button (10) and circuit structure (8) CONNECTION.