Intelligent direct current screen with storage battery automatic capacity checking function

Abstract

The utility model discloses an intelligent direct current screen with a storage battery automatic capacity checking function. The intelligent direct current screen comprises a direct current screen body, and an upper computer, a plurality of storage batteries, a discharging device and a communication module which are arranged on the direct current screen body, the storage battery discharges the first load to form a first current, a first current sampling module is arranged on the direct current screen body and used for collecting the first current, and the first current sampling module is in communication connection with an upper computer through a communication module; the discharging device is connected with the storage battery and is in communication connection with the upper computer through the communication module, the storage battery discharges the discharging device to form a second current, and the sum of the current values of the first current and the second current forms the dynamic constant discharging charge quantity of the storage battery. And the upper computer is used for checking the capacity of the storage battery according to the discharge time when the charge quantity is dynamically and constantly discharged. According to the utility model, automatic capacity checking can be carried out on the storage battery through the upper computer, on-site discharge operation is not needed, the power supply continuity is ensured, and the operation and maintenance cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of DC power supply technology, and specifically to an intelligent DC power supply with automatic battery capacity assessment function. Background Technology

[0002] In power and communication infrastructure, DC power supply panels serve as core power equipment, and their stable operation directly impacts the safety and reliability of the entire system. Batteries, as a crucial component of the DC power supply panel, are responsible for providing emergency power during mains power outages; their performance directly determines the panel's power supply capacity in emergencies. Therefore, regularly performing capacity checks on batteries to assess their actual capacity and health status is a vital measure to ensure the safe operation of the DC power supply system.

[0003] Traditional capacity testing typically requires taking the DC power supply out of the online operating state, i.e., shutting it down. Subsequently, a special discharge device needs to be connected to perform capacity testing on all the batteries in the DC power supply.

[0004] This capacity approval process is not only complex and time-consuming, but the shutdown operation also causes external loads to lose power, affecting service continuity. Furthermore, this process requires significant human resources, necessitating specialized technicians to perform on-site discharge operations and record and analyze test data, increasing maintenance costs. Utility Model Content

[0005] The purpose of this utility model is to provide an intelligent DC power supply with automatic battery capacity assessment function, which can improve the convenience of battery capacity assessment and reduce operation and maintenance costs.

[0006] To achieve the above objectives, the solution of this utility model is: an intelligent DC power supply with automatic battery capacity assessment function, comprising a DC power supply body and a host computer, several batteries, a discharge device and a communication module installed on the DC power supply body;

[0007] An external device is connected to a battery to form a first load. The battery discharges to the first load to generate a first current. The DC power supply body is equipped with a first current sampling module. The first current sampling module is located between the first load and the battery to collect the first current. The first current sampling module establishes a communication connection with the host computer through a communication module.

[0008] The discharge device is connected to the battery and establishes a communication connection with the host computer through a communication module. The battery discharges to the discharge device to form a second current. The sum of the values ​​of the first current and the second current constitutes the dynamic constant discharge charge of the battery. The host computer uses the discharge time when the dynamic constant discharge charge is applied to determine the battery capacity.

[0009] In a preferred embodiment, the discharge device includes a main control module, a second current sampling module, and a second load. The main control module establishes a communication connection with the host computer through a communication module. The second current sampling module is connected to both the battery and the main control module. The second load is connected to both the battery and the second current sampling module.

[0010] In a preferred embodiment, the module further includes a step-down module, which is connected to the second current sampling module and the second load, and the main control module is connected to the step-down module.

[0011] In a preferred embodiment, both the first current sampling module and the second current sampling module are current transformers.

[0012] In a preferred embodiment, the power module is also included, which is connected to the host computer and the battery, respectively, and is used to charge the battery and supply power to the host computer.

[0013] In a preferred embodiment, the battery inspection module is also included, which is connected to several batteries to detect the operating status of the batteries.

[0014] In a preferred embodiment, the communication module is an RS485 communication module.

[0015] The beneficial effects of this utility model after adopting the above solution are as follows: This utility model collects the first current of the first load through the first current sampling module. When it is necessary to verify the capacity of the battery, the battery discharges to the discharge device to form a second current. Since the first current will fluctuate as the battery voltage drops, the second current will be adjusted to ensure that the sum of the current values ​​of the first current and the second current is a dynamic constant value. This allows the host computer to obtain the battery capacity by detecting the discharge time of the battery under the condition of dynamic constant discharge charge, thus ensuring the accuracy of the capacity verification. Moreover, the discharge device is directly set on the DC power supply body and can realize automatic capacity verification in conjunction with the host computer. There is no need for shutdown operation or on-site discharge operation by professional technicians, which ensures the continuity of power supply and effectively reduces the operation and maintenance costs. Attached Figure Description

[0016] Figure 1 This is a partial structural schematic diagram of the DC power supply screen in an embodiment of this utility model.

[0017] Label Explanation:

[0018] 1. DC power supply unit; 10. First current sampling module; 11. First load; 12. First current;

[0019] 2. Host computer;

[0020] 3. Storage battery;

[0021] 4. Discharge device; 40. Main control module; 41. Second current sampling module; 42. Second load; 43. Second current; 44. Step-down module;

[0022] 5. Communication module. Detailed Implementation

[0023] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0024] This embodiment provides an intelligent DC power supply with automatic battery capacity assessment function, such as... Figure 1 As shown, it includes a DC power supply body 1, a host computer 2, several batteries 3, a discharge device 4, and a communication module 5 mounted on the DC power supply body 1.

[0025] External devices are connected to the storage battery 3 to form a first load 11. The storage battery 3 discharges to the first load 11 to form a first current 12. The DC screen body 1 is provided with a first current sampling module 10. The first current sampling module 10 is located between the first load 11 and the storage battery 3 to collect the first current 12. The first current sampling module 10 establishes a communication connection with the host computer 2 through the communication module 5.

[0026] The discharge device 4 is connected to the storage battery 3. The discharge device 4 establishes a communication connection with the host computer 2 through the communication module 5. The storage battery 3 discharges to the discharge device 4 to form a second current 43. The sum of the current values ​​of the first current 12 and the second current 43 constitutes the dynamic constant discharge charge of the storage battery 3. The host computer 2 is used to determine the capacity of the storage battery 3 by the discharge time when the dynamic constant discharge charge is applied.

[0027] When assessing the capacity of battery 3, it is usually necessary to ensure that battery 3 is in a constant current discharge state. By calculating the discharge time under constant current discharge state, the capacity of battery 3 can be accurately obtained.

[0028] In this embodiment, an external device is connected to the battery 3 to form a first load 11. A first current sampling module 10 is positioned between the first load 11 and the battery 3 to collect a first current 12. The battery 3 discharges through the discharge device 4 to generate a second current 43. As the voltage decreases, the first current 12 of the first load 11 increases, i.e., fluctuations occur. At this time, the discharge device 4 adjusts the second current 43 to ensure that the sum of the current values ​​of the first current 12 and the second current 43 is a dynamically constant value. Under the condition of dynamically constant discharge charge, the host computer 2 detects the discharge time of the battery 3 to obtain the capacity of the battery 3, thereby ensuring the accuracy of the capacity assessment.

[0029] Specifically, if the rated capacity of battery 3 is 40Ah, when assessing the capacity of battery 3, it is necessary to ensure that battery 3 maintains a discharge current of 4A, that is, theoretically, it can discharge continuously for 10 hours at a current of 4A. If at a certain moment the first current 12 of the first load 11 is 1.5A, the first load 11 alone cannot achieve a discharge current of 4A. At this time, the second current 43 is adjusted to 2.5A by the discharge device 4. The sum of the first current 12 and the second current 43 is 4A, thus achieving the required discharge current. Under these conditions, the host computer 2 only needs to detect the discharge time of battery 3 to accurately measure the capacity of battery 3.

[0030] Of course, as the discharge process continues, the voltage of battery 3 will decrease, at which point the first current 12 will increase, i.e., fluctuations will occur, such as the first current 12 increasing to 2A. To achieve the required discharge current of 4A, the discharge device 4 will adjust the second current 43 to 2A, ensuring that the sum of the first current 12 and the second current 43 is 4A. That is, through dynamic adjustment, the sum of the first current 12 and the second current 43 constitutes the dynamically constant discharge charge of battery 3, ensuring the accuracy of the rated capacity.

[0031] Furthermore, since the discharge device 4 is directly installed on the DC power supply unit 1 and works with the host computer 2 to achieve automatic capacity verification, there is no need for shutdown operations or on-site discharge operations by professional technicians. This ensures continuous power supply while effectively reducing maintenance costs. Of course, users can set the number of batteries 3 according to their actual needs.

[0032] like Figure 1 As shown, the discharge device 4 includes a main control module 40, a second current sampling module 41, and a second load 42. The main control module 40 establishes a communication connection with the host computer 2 through the communication module 5. The second current sampling module 41 is connected to the battery 3 and the main control module 40 respectively. The second load 42 is connected to the battery 3 and the second current sampling module 41 respectively.

[0033] In this embodiment, the main control module 40 communicates with the host computer 2 in real time via the communication module 5. The host computer 2 dynamically adjusts the discharge current strategy according to the real-time status of the battery 3. The main control module 40 can accurately control the second current 43 of the battery 3 to the second load 42, so that the sum of the first current 12 and the second current 43 constitutes the dynamic constant discharge charge of the battery 3. The second current sampling module 41 collects the discharge current of the second load 42 in real time and feeds back the value of the second current 43 to the main control module 40, which in turn feeds it back to the host computer 2, ensuring the accuracy of the discharge current and avoiding capacity errors caused by current fluctuations.

[0034] like Figure 1As shown, it also includes a step-down module 44, which is connected to the second current sampling module 41 and the second load 42 respectively, and the main control module 40 is connected to the step-down module 44.

[0035] The step-down module 44 in this embodiment can make minor adjustments to the current at the second load 42 according to the instructions of the main control module 40, so as to ensure the stability of the second current 43, and make the sum of the first current 12 and the second current 43 reach a dynamic constant value, thereby improving the accuracy of the core capacity.

[0036] Furthermore, in this embodiment, both the first current sampling module 10 and the second current sampling module 41 are current transformers, which can monitor the changes of the first current 12 and the second current 43 in real time, ensuring the stability of the discharge process, and the current information can be fed back to the host computer 2, providing accurate data support.

[0037] Furthermore, it also includes a power module (not shown in the figure), which is connected to the host computer 2 and the battery 3 and the host computer 2 respectively. It is used to charge the battery 3 and supply power to the host computer 2, avoiding the complexity of using multiple independent power modules and reducing the complexity and cost of the system.

[0038] Furthermore, it also includes a battery inspection module (not shown in the figure), which is connected to several batteries 3 respectively and is used to detect the operating status of the batteries 3.

[0039] The battery inspection module in this embodiment can monitor the operating parameters of each battery 3 in real time, and can detect potential faults of the battery 3 in advance, such as overcharging, over-discharging or overheating, to ensure the stability of the entire system operation.

[0040] Furthermore, in this embodiment, the communication module 5 is an RS485 communication module, which has high reliability, strong anti-interference capability, and can transmit current data in real time, and is also low in cost. Of course, other communication modules 5 can be used in other embodiments according to actual needs.

[0041] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. An intelligent DC power supply with automatic battery capacity assessment function, characterized in that: It includes the DC power supply unit itself, a host computer mounted on the DC power supply unit, several batteries, a discharge device, and a communication module; An external device is connected to a battery to form a first load. The battery discharges to the first load to generate a first current. The DC power supply body is equipped with a first current sampling module. The first current sampling module is located between the first load and the battery to collect the first current. The first current sampling module establishes a communication connection with the host computer through a communication module. The discharge device is connected to the battery and establishes a communication connection with the host computer through a communication module. The battery discharges to the discharge device to form a second current. The sum of the values ​​of the first current and the second current constitutes the dynamic constant discharge charge of the battery. The host computer uses the discharge time when the dynamic constant discharge charge is applied to determine the battery capacity.

2. The intelligent DC power supply with automatic battery capacity assessment function as described in claim 1, characterized in that: The discharge device includes a main control module, a second current sampling module, and a second load. The main control module establishes a communication connection with the host computer through a communication module. The second current sampling module is connected to both the battery and the main control module. The second load is connected to both the battery and the second current sampling module.

3. The intelligent DC power supply with automatic battery capacity assessment function as described in claim 2, characterized in that: It also includes a step-down module, which is connected to the second current sampling module and the second load, and the main control module is connected to the step-down module.

4. The intelligent DC power supply with automatic battery capacity assessment function as described in claim 2, characterized in that: Both the first current sampling module and the second current sampling module are current transformers.

5. The intelligent DC power supply with automatic battery capacity assessment function as described in claim 1, characterized in that: It also includes a power module, which is connected to the host computer and the battery, respectively, and is used to charge the battery and supply power to the host computer.

6. The intelligent DC power supply with automatic battery capacity assessment function as described in claim 1, characterized in that: It also includes a battery inspection module, which is connected to several batteries to detect the operating status of the batteries.

7. The intelligent DC power supply with automatic battery capacity assessment function as described in claim 1, characterized in that: The communication module is an RS485 communication module.

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