Three-path integrated current sensor inspection tool
By designing a three-in-one current sensor inspection tooling and using components such as cylinders and test copper bars to achieve automated sensor testing, the problems of low efficiency and high cost of traditional testing have been solved, thereby improving production efficiency and competitiveness.
Patent Information
- Application Number
- CN202422577476.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-24
AI Technical Summary
Traditional manual single-channel detection three-channel integrated current sensors are inefficient and use multiple current sources at high costs, making it difficult to meet market demand.
A three-in-one current sensor inspection tool is designed. Components such as a cylinder, a test copper busbar, and a visual sensor are used to achieve automated sensor detection and simplify the calibration and inspection process.
It improves detection efficiency, reduces production costs and enhances product competitiveness.
Smart Images
Figure CN223389807U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of inspection tooling, in particular to a three-way integrated current sensor inspection tooling. Background Art
[0002] A three-phase current sensor is a sensor used to measure three-phase current. It integrates three separate current sensors into one, offering advantages such as high precision, high stability, and high reliability. In the future, with the continued development of industrial automation, power systems, and new energy, the demand for three-phase current sensors will continue to increase. Furthermore, with the continuous advancement of technology, the performance and functionality of three-phase current sensors will continue to improve, and their application areas will continue to expand. However, three-phase current sensors also face challenges. Since three-phase measurements are required on a single sensor, traditional manual single-phase detection requires frequent changes to the primary side connection, a time-consuming and inefficient process. Simultaneous detection of all three phases requires connecting the primary side to a calibration current source, requiring all three current sources to operate simultaneously. However, DC sources are relatively expensive, increasing costs for manufacturers. Increasingly competitive markets require continuous improvement in production efficiency, cost reduction, and competitiveness.
[0003] Based on the above situation, the utility model proposes a three-way integrated current sensor testing tool, which can effectively solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a three-way integrated current sensor testing tool. This utility model has a simple structure and is easy to use. Through the coordinated arrangement of the cylinder, the first test copper bar, and the second test copper bar, it enables sensor testing, simplifies the current sensor current calibration and testing process, improves calibration and testing production efficiency, reduces product costs, and enhances product competitiveness.
[0005] The utility model is achieved through the following technical solutions:
[0006] A three-in-one current sensor inspection tool comprises a shell, in which a circuit board, a cylinder, a guide rail and a first fixed block are arranged, a slider is slidably connected to the guide rail, a second fixed block is fixedly provided on the slider, the first fixed block is arranged on one side of the second fixed block, the cylinder is arranged on the other side of the second fixed block, and the push rod of the cylinder is fixedly connected to the second fixed block, a first test copper bus is fixed on the second fixed block, a second test copper bus and a sensor fixing seat are fixed on the first fixed block, the cylinder is connected to a pneumatic solenoid valve, and the circuit board is electrically connected to the first test copper bus, the second test copper bus and the pneumatic solenoid valve respectively.
[0007] The purpose of this utility model is to provide a three-way integrated current sensor testing tool. This utility model has a simple structure and is easy to use. Through the coordinated arrangement of the cylinder, the first test copper bar, and the second test copper bar, it enables sensor testing, simplifies the current sensor current calibration and testing process, improves calibration and testing production efficiency, reduces product costs, and enhances product competitiveness.
[0008] Preferably, the housing is provided with an RS485 interface, and the circuit board is electrically connected to the RS485 interface.
[0009] Preferably, an indicator light is provided on the housing, and the circuit board is electrically connected to the indicator light.
[0010] Preferably, visual sensors are provided on both sides of the sensor fixing seat in the housing, and the circuit board is electrically connected to the visual sensors.
[0011] Preferably, the visual sensor is an infrared sensor.
[0012] Preferably, a copper busbar is provided on the housing, and the circuit board is electrically connected to the copper busbar.
[0013] Compared with the prior art, the present invention has the following advantages and beneficial effects:
[0014] The three-way integrated current sensor testing tooling of the utility model has a simple structure and is easy to use. Through the coordinated setting between the cylinder, the first test copper bar and the second test copper bar, the sensor is tested, the current calibration and testing process of the current sensor is simplified, the production efficiency of the calibration and testing is improved, the product cost is reduced, and the product competitiveness is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of the utility model after the hidden part of the shell;
[0016] Figure 2 It is a structural schematic diagram of part of the shell of the utility model. DETAILED DESCRIPTION
[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the preferred embodiments of the present invention are described below in conjunction with specific embodiments. However, it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting this patent. To better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the dimensions of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and are not to be construed as limiting this patent.
[0018] Example 1:
[0019] like Figures 1 to 2 As shown, the utility model provides a three-in-one current sensor inspection tool, including a shell 1, in which a circuit board 2, a cylinder 3, a guide rail 4 and a first fixed block 5 are provided. A slider 6 is slidably connected to the guide rail 4, and a second fixed block 7 is fixed on the slider 6. The first fixed block 5 is arranged on one side of the second fixed block 7, and the cylinder 3 is arranged on the other side of the second fixed block 7, and the push rod of the cylinder 3 is fixedly connected to the second fixed block 7. A first test copper bus 8 is fixed on the second fixed block 7, and a second test copper bus 9 and a sensor fixing seat 10 are fixed on the first fixed block 5. The cylinder 3 is connected to a pneumatic solenoid valve 11, and the circuit board 2 is electrically connected to the first test copper bus 8, the second test copper bus 9 and the pneumatic solenoid valve 11 respectively.
[0020] Example 2:
[0021] like Figures 1 to 2 As shown, the utility model provides a three-in-one current sensor inspection tool, including a shell 1, in which a circuit board 2, a cylinder 3, a guide rail 4 and a first fixed block 5 are provided. A slider 6 is slidably connected to the guide rail 4, and a second fixed block 7 is fixed on the slider 6. The first fixed block 5 is arranged on one side of the second fixed block 7, and the cylinder 3 is arranged on the other side of the second fixed block 7, and the push rod of the cylinder 3 is fixedly connected to the second fixed block 7. A first test copper bus 8 is fixed on the second fixed block 7, and a second test copper bus 9 and a sensor fixing seat 10 are fixed on the first fixed block 5. The cylinder 3 is connected to a pneumatic solenoid valve 11, and the circuit board 2 is electrically connected to the first test copper bus 8, the second test copper bus 9 and the pneumatic solenoid valve 11 respectively.
[0022] The circuit board 2 (PCBA) is the core component of the tooling control. It connects various electronic components to achieve circuit conductivity and control. In this tooling, the MCU is installed on the PCBA and, according to the program design, processes signals, controls power supply and timing, detects output signals, and ultimately outputs test results.
[0023] The first and second test copper busbars 8 and 9 efficiently connect the calibration current output by the current source to the primary side of the sensor under test. The connected busbars form an effective loop, allowing the same current to be simultaneously connected to the primary side perforations of the three sensor paths.
[0024] The sensor fixing seat 10 mainly supports the sensor firmly to ensure that it maintains the correct position during operation and avoids shaking and displacement; this part adopts a slot that matches the sensor body. This method can facilitate the replacement of the fixing seat and is suitable for a wider range of product series.
[0025] Cylinder 3 achieves reciprocating motion, precisely controlling the movement of the primary copper busbar through air pressure. This allows for efficient connection and disconnection of the primary copper busbar, improving work efficiency. Cylinder 3 also provides stable support and driving force, ensuring smooth movement of the busbar.
[0026] The housing 1 is provided with an RS485 interface 15 , and the circuit board 2 is electrically connected to the RS485 interface 15 .
[0027] The RS485 interface 15 mainly provides a data connection for the current source to be controlled. This communication protocol has a strong anti-interference ability, can realize information exchange between devices, and ensure accurate and reliable data transmission.
[0028] Furthermore, in another embodiment, the housing 1 is provided with an indicator light 12 , and the circuit board 2 is electrically connected to the indicator light 12 .
[0029] The function of the indicator light 12 is to intuitively display the test results of the tested object. The test personnel can quickly know whether the tested object is qualified, providing a clear visual prompt of the test results, and facilitating operation and monitoring.
[0030] Furthermore, in another embodiment, vision sensors 13 are provided on both sides of the sensor fixing seat 10 in the housing 1 , and the circuit board 2 is electrically connected to the vision sensors 13 .
[0031] Furthermore, in another embodiment, the visual sensor 13 is an infrared sensor.
[0032] The visual sensor 13 can quickly and accurately obtain image data, determine whether the sensor to be tested is placed through detection, and then start subsequent testing work.
[0033] Furthermore, in another embodiment, a copper busbar 14 is provided on the housing 1 , and the circuit board 2 is electrically connected to the copper busbar 14 .
[0034] The copper busbar 14 is made of pure copper and has good electrical and thermal conductivity. Its main function is to distribute the current in the circuit and can withstand large current loads. It connects the power supply line to each branch circuit.
[0035] The working principle of one embodiment of the utility model is as follows:
[0036] A three-way integrated current sensor testing tool, the equipment is powered on and ventilated, the DC source is connected to the first test copper bus 8, and the communication line of the DC source is connected to the RS485 interface;
[0037] After the cylinder 3 pushes the first test copper bar 8 to the required position, the test product is placed in it. After the test is started, the cylinder 3 drives the first test copper bar 8 to connect with the second test copper bar 9 to complete the circuit.
[0038] Power supply, start current source;
[0039] When the test is started, the visual sensor 13 detects whether the sensor under test is connected. After confirmation, the PCBA controls the two test copper bars to connect, then controls the DC source to output the required current, detects the product output end and compares and analyzes it with the standard range, and finally outputs a control signal based on the test result to control the indicator light;
[0040] The indicator light 12 indicates the three-way test result by lighting up or down. If it lights up, it means the product has passed.
[0041] According to the set time interval, the DC source is turned off, the cylinder 3 moves the first test copper bar 8, and the sensor to be tested is taken out, and the test is completed.
[0042] According to the description and drawings of the present invention, those skilled in the art can easily manufacture or use the three-way integrated current sensor testing tool of the present invention, and can produce the positive effects recorded in the present invention.
[0043] Unless otherwise specified, in this utility model, if there are terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating orientation or positional relationships, they are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationships in this utility model are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, they can understand the specific meanings of the above terms in conjunction with the accompanying drawings and according to specific circumstances.
[0044] Unless otherwise specified or limited, the terms "disposed," "connected," and "connected" in this utility model should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.
[0045] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention falls within the scope of protection of the present invention.
Claims
1. A three-way integrated current sensor testing tool, characterized by: It includes a shell, in which a circuit board, a cylinder, a guide rail and a first fixed block are arranged. A slider is slidably connected to the guide rail, and a second fixed block is fixed to the slider. The first fixed block is arranged on one side of the second fixed block, and the cylinder is arranged on the other side of the second fixed block, and the push rod of the cylinder is fixedly connected to the second fixed block. A first test copper bus is fixed on the second fixed block, and a second test copper bus and a sensor fixing seat are fixed on the first fixed block. The cylinder is connected to a pneumatic solenoid valve, and the circuit board is electrically connected to the first test copper bus, the second test copper bus and the pneumatic solenoid valve respectively.
2. The three-way integrated current sensor testing tool according to claim 1, characterized in that: The shell is provided with an RS485 interface, and the circuit board is electrically connected to the RS485 interface.
3. The three-way integrated current sensor testing tool according to claim 1, characterized in that: An indicator light is provided on the housing, and the circuit board is electrically connected to the indicator light.
4. The three-way integrated current sensor testing tool according to claim 1, characterized in that: Vision sensors are provided on both sides of the sensor fixing seat in the shell, and the circuit board is electrically connected to the vision sensors.
5. The three-way integrated current sensor testing tool according to claim 4, characterized in that: The visual sensor is an infrared sensor.
6. The three-in-one current sensor testing tool according to claim 1, characterized in that: The housing is provided with a copper busbar, and the circuit board is electrically connected to the copper busbar.