current detection component
Patent Information
- Application Number
- CN202522502801.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-26
AI Technical Summary
[0003]本实用新型的主要目的是提出一种电流检测组件，旨在解决现有电流检测组件成本高、体积大、精度差的问题
[0012]本实用新型技术方案通过采用一大一小等比例的主电流排和分支电流排，两个电路系统过电流比例需要设计好比例值，在小电流的分支电流排上安装一个电流传感器，电流传感器可以是100A高精度磁通门电流传感器，通过采集电流传感器的电流数据值，并转换成电压信号送至后级电路，后级电路系统经过两路电流比例值换算出整个电流检测组件的过电流值。如此设置，可以实现高精度大量程电流采集系统同时可以降低采集组件空间体积，节约成本，提高大电流系统检测过程中安全性、便捷性、高性能。
Smart Images
Figure CN224840323U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of current detection technology, and in particular to a current detection component. Background Technology
[0002] Traditional high-current detection components are mostly made of large-volume manganese copper busbars. Due to the large current, such as thousands of amperes, the manganese copper busbars need to be made very large. Current acquisition through manganese copper material is not accurate due to the influence of common-mode signals, and special high-voltage and high common-mode processing is required. Therefore, the cost is high and the accuracy is poor, which is not conducive to the precise control of output current in high-precision power supply systems. If a manganese copper busbar is combined with a large Hall current sensor acquisition component, the large size of the manganese copper busbar and the large size of the Hall sensor need to be made, which is also costly and not conducive to space layout and placement. Utility Model Content
[0003] The main purpose of this invention is to propose a current detection component that aims to solve the problems of high cost, large size, and poor accuracy of existing current detection components.
[0004] To achieve the above objectives, the present invention proposes a current detection component, which includes: Main current bus; At least one branch current bus, the branch current bus being connected in parallel with the main current bus; A current sensor is connected to the branch current busbar, and the current sensor is used to detect the current in the branch current busbar; The overcurrent values of the main current busbar and the branch current busbars are set proportionally, the number of branch current busbars is n, the overcurrent value detected by the current sensor is x, the ratio of the overcurrent value detected by the current sensor to the overcurrent value of the main current busbar is a:b, and the overcurrent value of the current detection component is n×x+bx / a.
[0005] Furthermore, the main current busbar includes a main busbar section and a first bent section and a second bent section connected to both ends of the main busbar section, and the two ends of the branch current busbar are respectively connected to the first bent section and the second bent section.
[0006] Furthermore, the two ends of the branch current busbar are respectively welded to the first bending section and the second bending section.
[0007] Furthermore, both the main current bus and the branch current bus are made of manganese copper.
[0008] Furthermore, the main busbar is perpendicular to the first bend and the second bend, and the branch busbar is parallel to the main busbar.
[0009] Furthermore, the branch current busbar, the main busbar segment, the first bending segment, and the second bending segment are all rectangular in shape.
[0010] Furthermore, the main current busbar is hollowed out to form several wiring holes.
[0011] Furthermore, the current sensor is a fluxgate current sensor.
[0012] This invention employs a main current busbar and branch current busbars of equal proportions (one large and one small). The overcurrent ratio of the two circuit systems needs to be precisely designed. A current sensor, such as a 100A high-precision fluxgate current sensor, is installed on the smaller branch current busbar. The current data from the sensor is collected, converted into a voltage signal, and sent to the subsequent circuit. The subsequent circuit calculates the overcurrent value of the entire current detection component based on the two current ratio values. This configuration enables a high-precision, large-range current acquisition system while reducing the size of the acquisition component, saving costs, and improving safety, convenience, and performance during high-current system detection. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the current detection component of this utility model; Figure 2 This is a schematic diagram of the main current busbar in the current detection component of this utility model.
[0014] The diagram shows the following symbols: 100, main current busbar; 200, branch current busbar; 300, current sensor; 110, main busbar section; 120, first bend section; 130, second bend section; 140, wiring hole. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Please see Figures 1 to 2 This utility model proposes a current detection component that can be applied in the manufacturing of high-current energy storage modules and high-voltage high-current power supply systems.
[0017] The current detection assembly includes a main current busbar 100, at least one branch current busbar 200, and a current sensor 300. The branch current busbar 200 is connected in parallel with the main current busbar 100. The branch current busbar 200 is connected to the current sensor 300, which is used to detect the current in the branch current busbar 200. The overcurrent values of the main current busbar 100 and the branch current busbar 200 are set proportionally. The number of branch current busbars 200 is n. The overcurrent value detected by the current sensor 300 is x. The ratio of the overcurrent value detected by the current sensor 300 to the overcurrent value of the main current busbar 100 is a:b. The overcurrent value of the current detection assembly is n×x+bx / a.
[0018] Specifically, the entire current detection assembly is designed with a main current bus 100 and a branch current bus 200 of equal proportions. Based on the overcurrent design ratio of the two different circuit systems in the main current bus 100 and branch current bus 200, a current sensor 300 is installed on the smaller branch current bus 200. The current sensor 300 can be a 100A high-precision fluxgate current sensor. The current data value from the current sensor 300 is collected, converted into a voltage signal, and sent to the subsequent circuit. The subsequent circuit calculates the overcurrent value of the entire current detection assembly using the two current ratio values. For example, if there is only one branch current bus 200, and the overcurrent ratio of the main current bus 100 to the branch current bus 200 is designed to be 2:1, and the overcurrent value detected by the current sensor 300 is x, then the overcurrent value of the current detection assembly is x + 2 × x. This configuration enables a high-precision, large-range current acquisition system while reducing the size of the acquisition assembly, saving costs, and improving the safety, convenience, and performance of high-current system detection.
[0019] Please see Figures 1 to 2 Furthermore, the main current bus 100 includes a main bus section 110 and a first bent section 120 and a second bent section 130 connected to both ends of the main bus section 110. The two ends of the branch current bus 200 are respectively connected to the first bent section 120 and the second bent section 130. The first bent section 120 and the second bent section 130 can be kept as perpendicular as possible to the main bus section 110 and the branch current bus 200.
[0020] Please see Figures 1 to 2 Furthermore, the two ends of the branch current bus 200 are welded to the first bending section 120 and the second bending section 130, respectively. Of course, the branch current bus 200 can also be connected to the first bending section 120 and the second bending section 130 in other ways, as long as the current can be conducted.
[0021] Furthermore, both the main current bus 100 and the branch current bus 200 are made of manganese copper.
[0022] Please see Figures 1 to 2 Furthermore, the main busbar 110 is perpendicular to the first bend 120 and the second bend 130, and the branch busbar 200 is parallel to the main busbar 110.
[0023] Please see Figures 1 to 2 Furthermore, the branch current bus 200, the main bus section 110, the first bending section 120, and the second bending section 130 are all rectangular in shape.
[0024] Please see Figures 1 to 2 Furthermore, the main current bus 100 is hollowed out to form several wiring holes 140. For example, the left wiring hole 140 can be used to connect to the positive or negative terminal, and the right wiring hole 140 leads out a wire.
[0025] Furthermore, the current sensor 300 is a fluxgate current sensor 300. The fluxgate current sensor 300 collects current, isolates the system, and achieves high-precision current acquisition.
[0026] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A current detection component, characterized in that, The current detection component includes: Main current bus; At least one branch current bus, the branch current bus being connected in parallel with the main current bus; A current sensor is connected to the branch current busbar, and the current sensor is used to detect the current in the branch current busbar; The overcurrent values of the main current busbar and the branch current busbars are set proportionally, the number of branch current busbars is n, the overcurrent value detected by the current sensor is x, the ratio of the overcurrent value detected by the current sensor to the overcurrent value of the main current busbar is a:b, and the overcurrent value of the current detection component is n×x+bx / a.
2. The current detection component as described in claim 1, characterized in that, The main current busbar includes a main busbar section and a first bend section and a second bend section connected to both ends of the main busbar section. The two ends of the branch current busbar are respectively connected to the first bend section and the second bend section.
3. The current detection component as described in claim 2, characterized in that, The two ends of the branch current busbar are welded to the first bending section and the second bending section, respectively.
4. The current detection component as described in claim 3, characterized in that, Both the main current bus and the branch current bus are made of manganese copper.
5. The current detection component as described in claim 3, characterized in that, The main busbar is perpendicular to the first bend and the second bend, and the branch busbar is parallel to the main busbar.
6. The current detection component as described in claim 5, characterized in that, The branch current bus, the main bus section, the first bending section, and the second bending section are all rectangular in shape.
7. The current detection component as described in claim 1, characterized in that, The main current busbar has a hollowed-out design with several wiring holes.
8. The current detection component as described in claim 1, characterized in that, The current sensor is a fluxgate current sensor.