A multifunctional magnetic flux testing device

Abstract

This application relates to the field of magnetic flux testing equipment technology, and in particular to a multifunctional magnetic flux testing device, which includes a support component, a sensor component, and a reset component. The support component includes a worktable and a support wall vertically fixed to the top of the worktable. The sensor component includes a pressure sensor. The reset component includes a first cylinder and a rocker arm. The worktable has a corresponding clearance groove for the rocker arm, and the rocker arm is rotatably connected to the clearance groove. The first cylinder is fixed to one side of the support wall, the pressure sensor is fixed to the other side of the support wall, and a trip unit is fixed to the end of the rocker arm away from the first cylinder. The telescopic rod of the cylinder extends vertically downward and abuts against one end of the rocker arm, driving the trip unit to rise until it abuts against the pressure sensor, thereby obtaining the reset force data of the trip unit. This application has the feature of improving detection efficiency.

Description

Technical Field

[0001] This application relates to the field of magnetic flux detection equipment technology, and in particular to a multifunctional magnetic flux testing device. Background Technology

[0002] A trip unit is a device mechanically connected to a circuit breaker and is used to automatically disconnect the circuit when an abnormality is detected. Its main functions include short-circuit protection and overload protection.

[0003] In related technologies, in order to improve the pass rate of trip units, it is usually necessary to test the produced trip units. At present, the magnetic flux testing equipment for trip units is mainly used to test the tripping force of the trip units. By installing the trip unit on the testing equipment, the trip unit trips after being powered on, thereby testing its tripping force. The structure is simple and the cost is low.

[0004] Existing magnetic flux testing equipment has the following problems: it has a single function and cannot detect the reset force. With the development of industrial automation, the demand for comprehensive testing of trip unit performance is increasing, and there is an urgent need for a multifunctional magnetic flux testing device that can simultaneously test the trip force and the reset force. Utility Model Content

[0005] To improve detection efficiency, this application provides a multifunctional magnetic flux testing device.

[0006] The multifunctional magnetic flux testing device provided in this application adopts the following technical solution: A multifunctional magnetic flux testing device includes a support assembly, a sensor assembly, and a reset assembly. The support assembly includes a worktable and a support wall vertically fixed to the top of the worktable. The sensor assembly includes a pressure sensor. The reset assembly includes a first cylinder and a rocker arm. The worktable has a corresponding clearance groove for the rocker arm, and the rocker arm is rotatably connected to the clearance groove. The first cylinder is fixed to one side of the support wall, the pressure sensor is fixed to the other side of the support wall, and a trip unit is fixed to the end of the rocker arm away from the first cylinder. The telescopic rod of the cylinder extends vertically downward and abuts against one end of the rocker arm, causing the trip unit to rise until it abuts against the pressure sensor.

[0007] By adopting the above scheme, the telescopic rod of the first cylinder extends downward, drives the rocker arm to rotate around the relief groove, and drives the trip unit to rise to contact the pressure sensor and trigger the pressure signal, thereby obtaining the reset force data of the trip unit and improving the detection efficiency.

[0008] Preferably, the rocker arm and the detection head of the pressure sensor form a clamping engagement in the reset direction of the trip unit.

[0009] By adopting the above scheme, the rocker arm and the pressure sensor form a mechanical linkage to ensure that the reset action is accurate and in place. The detection head can detect and collect reset force data in real time, thereby improving reliability.

[0010] Preferably, the two sides of the rotating connection point of the rocker arm are respectively provided as a first rod and a second rod, and a limit block is provided on the second rod to constrain the radial displacement of the release device. The length of the first rod is greater than that of the second rod.

[0011] By adopting the above scheme, it is easy for the second rod to generate end displacement, driving the trip unit to move quickly. The limiting block reduces the occurrence of trip unit deviation due to swing or impact through physical structure.

[0012] Preferably, the workbench is provided with a mounting base, and a snap-fit ​​groove is provided through one side of the mounting base, which engages with the trip unit.

[0013] By adopting the above solution, the trip unit can be quickly disassembled and replaced, and the accuracy of the reset direction is improved.

[0014] Preferably, the two opposite sides of the slot inside the snap-fit ​​groove are provided with arc-shaped snap-fit ​​members extending horizontally, and the curvature of the arc-shaped snap-fit ​​members is adapted to the outer peripheral wall of the trip unit.

[0015] By adopting the above solution, the arc-shaped contact surface can evenly distribute the squeezing force when the trip unit is inserted, reduce local stress concentration, and extend the service life of the component.

[0016] Preferably, the arc-shaped snap-fit ​​component is also provided with an elastic structure.

[0017] By adopting the above scheme, the diameter difference of the trip unit can be compensated by deformation, which facilitates the fixing and testing of different models of trip units and improves flexibility.

[0018] Preferably, the sensor assembly further includes a second cylinder and a third cylinder disposed above the second cylinder, wherein the second cylinder is used to adjust the position of the pressure sensor and the third cylinder is used to fine-tune the position of the detection head of the pressure sensor.

[0019] By adopting the above scheme, the two-stage cylinder control depth participates in the macro and micro position calibration of the pressure sensor, thereby improving detection accuracy. Preferably, the third cylinder is configured as a miniature cylinder.

[0020] By adopting the above solution, the micro-adjustment of the pressure sensor detection head is achieved, thereby improving space utilization.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The telescopic rod of the first cylinder extends downward, driving the rocker arm to rotate around the relief groove, causing the trip unit to rise to contact the pressure sensor and trigger the pressure signal, thereby obtaining the reset force data of the trip unit and improving the detection efficiency; 2. Improved the convenience and flexibility of the device; 3. Improved the detection accuracy and reliability of the device. Attached Figure Description

[0022] Figure 1 This is a front structural diagram of an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the rear structure of an embodiment of this application.

[0024] Figure 3 This is a schematic diagram of the overall structure of the rocker arm according to an embodiment of this application.

[0025] Explanation of reference numerals in the attached drawings: 1. Bearing component; 11. Support wall; 12. Worktable; 121. Clearance groove; 13. Mounting base; 131. Snap-fit ​​groove; 132. Arc-shaped snap-fit ​​component; 2. Sensor assembly; 21. Pressure sensor; 22. Second cylinder; 23. Third cylinder; 3. Reset assembly; 31. First cylinder; 32. Rocker arm; 321. First rod; 322. Second rod; 323. Limiting block. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0027] This application discloses a multifunctional magnetic flux testing device. (Refer to...) Figure 1-2 A multifunctional magnetic flux testing device includes a support component 1, a sensor component 2, and a reset component 3. The support component 1 includes a workbench 12 and a support wall 11 vertically fixed to the top of the workbench 12. The sensor component 2 includes a pressure sensor 21. The reset component 3 includes a first cylinder 31 and a rocker arm 32. The workbench 12 has a corresponding relief groove 121 for the rocker arm 32, and the rocker arm 32 is rotatably connected in the relief groove 121.

[0028] Furthermore, the first cylinder 31 is fixed to one side of the support wall 11, the pressure sensor 21 is fixed to the other side of the support wall 11, and the trip unit is fixed to the end of the rocker arm 32 away from the first cylinder 31. The telescopic rod of the cylinder extends vertically downward and abuts against one end of the rocker arm 32, causing the trip unit to rise until it abuts against the pressure sensor 21.

[0029] Correspondingly, the workbench 12 and the support wall 11 work together to provide a stable test environment, playing a supporting and positioning role. After the trip unit is fixed and powered on, it trips to complete the tripping force test.

[0030] Furthermore, the first cylinder 31 pushes the rocker arm 32 to rotate around the relief groove 121 via the telescopic rod, causing the trip unit fixed at the end of the rocker arm 32 to produce a vertically upward linear displacement. The trip unit rises until it abuts against the detection head of the pressure sensor 21. The rocker arm 32 and the detection head form a clamping engagement in the reset direction of the trip unit, enabling the sensor to complete the real-time detection and recording of high-precision contact pressure within a limited space, i.e., the reset force data of the trip unit. This achieves synchronous detection of the trip force and the composite force of the trip unit through a single device, effectively improving the detection efficiency.

[0031] On the other hand, the two sides of the rotating connection point of the rocker arm 32 are the first rod body 321 and the second rod body 322, respectively. The second rod body 322 is fixed with a limit block 323 to constrain the radial displacement of the trip unit, and the length of the first rod body 321 is greater than that of the second rod body 322.

[0032] Therefore, the torque transmission efficiency is optimized by leveraging the length advantage of the first rod 321, enabling it to generate a larger end displacement under the same input force, thus driving the trip unit to move quickly.

[0033] Furthermore, the limit block 323 forms a blocking boundary through physical structure, reducing the occurrence of misalignment of the trip unit due to swinging or impact, ensuring precise contact between the trip unit and the pressure sensor 21, the lever effect of the rocker arm 32 reduces the force required for reset, and the limit block 323 enhances stability, achieving the dual effect of efficient reset and anti-slip movement.

[0034] In addition, a mounting base 13 is fixed on the workbench 12. A snap-fit ​​groove 131 is opened through one side of the mounting base 13. An arc-shaped snap-fit ​​member 132 is fixed horizontally on the two opposite sides of the groove inside the snap-fit ​​groove 131. The curvature of the arc-shaped snap-fit ​​member 132 is adapted to the outer peripheral wall of the trip unit. The mounting base 13 is engaged with the trip unit through the snap-fit ​​groove 131 and the arc-shaped snap-fit ​​member 132.

[0035] Therefore, the trip unit achieves precise insertion through the snap-fit ​​groove 131 and the arc-shaped snap-fit ​​piece 132. The snap-fit ​​allows the trip unit to be quickly disassembled and replaced, reducing the difficulty of installation. At the same time, it ensures the alignment of the reset direction, reducing the sensor detection error caused by the offset. The snap-fit ​​groove 131, together with the limiting piece, constrains the radial displacement of the trip unit, reducing loosening caused by vibration or impact during the test, and improving the stability and reliability of the test.

[0036] Furthermore, the arc-shaped latch 132 achieves radial self-centering by matching the curvature of the trip unit's circumference, restricting the lateral displacement of the trip unit during the reset process in the height direction, thus forming a mechanical interlock. At the same time, the arc-shaped contact surface can evenly distribute the squeezing force when the trip unit is inserted, reducing local stress concentration and improving structural durability.

[0037] In summary, this snap-fit ​​structure, through a combination of arc-shaped geometric adaptation and dynamic limiting, ensures precise positioning, simplifies the assembly process, and balances installation efficiency and stability.

[0038] Meanwhile, the arc-shaped snap-fit ​​132 also has a built-in elastic structure (not shown in the figure), which can absorb the assembly tolerance when the trip unit is inserted through elastic deformation, ensuring that the contact surface of the arc-shaped snap-fit ​​132 is tightly fitted with the peripheral wall of the trip unit, reducing frictional loss caused by hard contact. The elastic element can disperse the vibration and impact during operation, playing a buffering and protective role.

[0039] Furthermore, the elastic structure utilizes deformation to compensate for the diameter differences of different trip units, enabling fixed testing of various trip unit models and improving compatibility and flexibility.

[0040] On the other hand, the sensor assembly 2 also includes a second cylinder 22 and a third cylinder 23 fixed above the second cylinder 22. The second cylinder 22 is used to adjust the position of the pressure sensor 21, and the third cylinder 23 is configured as a micro cylinder for fine-tuning the position of the detection head of the pressure sensor 21.

[0041] Therefore, the two-stage cylinder control, combining coarse positioning and fine adjustment, deeply participates in the macro and micro position calibration of the pressure sensor 21, ensuring stable contact between the pressure sensor 21 and the trip unit, and improving detection accuracy.

[0042] Furthermore, the use of miniature cylinders reduces motion interference with other driving components, has high repeatability and rapid response, can quickly complete high-frequency fine-tuning actions, meets the positioning requirements for fine-tuning of the detection head, adapts to the real-time compensation requirements of the pressure sensor 21, and also improves space utilization.

[0043] The implementation principle of a multifunctional magnetic flux testing device in this application embodiment is as follows: after the trip unit is energized and tripped, the first cylinder 31 drives the rocker arm 32 to rotate, causing the trip unit to move upward and contact the pressure sensor 21, thereby detecting and recording the reset force data in real time, realizing the synchronous detection of tripping force and composite force, and improving detection efficiency.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multifunctional magnetic flux testing device, characterized in that, The device includes a support assembly (1), a sensor assembly (2), and a reset assembly (3). The support assembly (1) includes a worktable (12) and a support wall (11) vertically fixed to the top of the worktable (12). The sensor assembly (2) includes a pressure sensor (21). The reset assembly (3) includes a first cylinder (31) and a rocker arm (32). The worktable (12) has a matching clearance groove (121) corresponding to the rocker arm (32). The rocker arm (32) is rotatably connected in the clearance groove (121). The first cylinder (31) is fixed to one side of the support wall (11). The pressure sensor (21) is fixed to the other side of the support wall (11). A trip unit is fixed to the end of the rocker arm (32) away from the first cylinder (31). The telescopic rod of the cylinder extends vertically downward and abuts against one end of the rocker arm (32), driving the trip unit to rise until it abuts against the pressure sensor (21).

2. A multi-functional magnetic flux testing apparatus according to claim 1, wherein The rocker arm (32) and the detection head of the pressure sensor (21) form a clamping engagement in the reset direction of the trip unit.

3. The multi-functional magnetic flux testing apparatus according to claim 1, wherein The two sides of the rotating connection point of the rocker arm (32) are respectively set as a first rod body (321) and a second rod body (322). A limit block (323) is provided on the second rod body (322) to constrain the radial displacement of the release device. The length of the first rod body (321) is greater than that of the second rod body (322).

4. A multi-functional magnetic flux testing apparatus according to claim 3, wherein The workbench (12) is provided with a mounting base (13), and a snap-fit ​​groove (131) is provided through one side of the mounting base (13), which engages with the trip unit.

5. A multi-functional magnetic flux testing apparatus according to claim 4, wherein The two opposite sides of the slot inside the snap-fit ​​groove (131) are provided with arc-shaped snap-fit ​​parts (132) extending horizontally, and the arc of the arc-shaped snap-fit ​​parts (132) is adapted to the outer peripheral wall of the trip unit.

6. A multi-functional magnetic flux testing apparatus according to claim 5, wherein The arc-shaped snap-fit ​​component (132) is also provided with an elastic structure.

7. The multi-functional magnetic flux testing apparatus according to claim 1, wherein The sensor assembly (2) further includes a second cylinder (22) and a third cylinder (23) disposed above the second cylinder (22). The second cylinder (22) is used to adjust the position of the pressure sensor (21), and the third cylinder (23) is used to fine-tune the position of the detection head of the pressure sensor (21).

8. A multi-functional magnetic flux testing apparatus according to claim 7, wherein The third cylinder (23) is configured as a miniature cylinder.

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