Stator lead head test connector

Abstract

The utility model relates to a stator lead head test connector, which comprises a test board and a connecting seat, the surface of the test board is detachably provided with the connecting seat through a pressing block, the side edge of the connecting seat is embedded with a terminal used for being connected with external electrical performance test equipment, and the connecting seat is provided with an electrical connecting column electrically connected with the terminal; a cushion block is arranged at the top of the connecting base, a guide sliding hole matched with the electric connecting column is formed in the cushion block, and the side, facing the connecting base, of the cushion block is fixedly connected with an extension spring. According to the stator lead head test connector, rapid, stable and reliable electric connection with a stator lead head is realized through the detachable connecting seat, the push rod driven by the cylinder and the cushion block with the guide sliding hole, and poor contact and errors are effectively reduced, so that the accuracy and reliability of a test result are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a stator lead head testing connector. Background Art

[0002] In the existing technology, the stator is an important component of the motor, and the quality of its lead head directly affects the performance and reliability of the motor. Therefore, it is crucial to conduct effective electrical performance testing on the stator lead head.

[0003] Traditional stator lead testing methods typically rely on manual connection, such as using probes or fixtures to directly connect the leads. However, manual connection is cumbersome, time-consuming, and prone to connection errors, resulting in inaccurate test results. Manual connection also requires high operator skill, making automated testing difficult. Finally, for stators with complex shapes or a large number of leads, manual connection is extremely difficult, or even impossible to perform effective testing. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a stator lead head test connector which realizes a fast, stable and reliable electrical connection with the stator lead head.

[0005] In order to achieve the above-mentioned purpose, the stator lead head test connector designed by the utility model includes a test bench and a connecting seat, the connecting seat is detachably installed on the table top of the test bench through a pressure block, a terminal for connecting an external electrical performance test device is embedded in the side of the connecting seat, and an electrical connection column electrically connected to the terminal is provided; a pad is provided on the top of the connecting seat, and a guide sliding hole adapted to the electrical connection column is provided on the pad, and a tension spring is fixedly connected to the side of the pad facing the connecting seat; a countersunk hole for accommodating the tension spring is provided on the top of the connecting seat, and the side of the tension spring facing away from the pad is fixed to the bottom of the countersunk hole; a push rod is provided at the bottom of the pad, and the lower end of the push rod extends to the bottom of the table top of the test bench, and a cylinder coaxially arranged with the push rod is provided under the table top of the test bench.

[0006] Furthermore, the connecting seat includes a first part and a second part stacked up and down, and a groove is provided on the side of the second part facing the first part, and the terminal is embedded in the second part and at least partially placed in the groove; the electrical connecting column is fixed on the first part, and the electrical connecting column is at least partially placed in the groove.

[0007] Furthermore, an insulating sleeve is provided on the electrical connection column, and the top end of the electrical connection column is at least partially exposed outside the insulating sleeve; the aperture of the guide slide hole is adapted to the diameter of the insulating sleeve.

[0008] Furthermore, the pressure block is provided on each side of the connecting seat, and the two pressure blocks have a fixing portion extending away from each other and a pressing portion extending toward each other, and the fixing portion is fixed to the table surface of the test bench by screws, so that the connecting seat is fixed to the test bench through the two pressing portions.

[0009] Furthermore, the test bench and the connecting seat are provided with a through hole for the push rod to pass through, and the push rod passes through the through hole and is coaxially arranged relative to the piston rod of the cylinder.

[0010] Furthermore, two push rods are provided at intervals.

[0011] Furthermore, the opening of the through hole on the test bench facing away from the connecting seat is in a one-way enlarged shape.

[0012] Furthermore, a guide rod coaxially arranged with the countersunk hole is provided on the cushion block, and the end of the guide rod away from the cushion block passes through the tension spring and extends into the countersunk hole. The bottom of the countersunk hole is provided with a guide hole adapted to the guide rod.

[0013] Furthermore, the guide rod is fixedly connected to the cushion block via a thread, and two guide rods are provided; the top of the cushion block is provided with a sunken portion that exposes the top ends of the two guide rods.

[0014] The stator lead head test connector designed in this utility model realizes a fast, stable and reliable electrical connection with the stator lead head through a detachable connecting seat, a cylinder-driven ejector rod and a spacer with a guide slide hole. This design significantly shortens test preparation time, improves test efficiency and result accuracy, simplifies the operation process, and reduces the skill requirements of the operator. Thanks to the stable and reliable connection method, poor contact and errors are effectively reduced, thereby ensuring the accuracy and reliability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 1 is a schematic structural diagram of a stator lead head test connector provided in an embodiment of the present application;

[0016] Figure 2 Schematic diagram of the planar structure of the connecting socket provided in an embodiment of the present application;

[0017] Figure 3 yes Figure 2 Cross-sectional view at AA in the middle;

[0018] Figure 4 yes Figure 2 Cross-sectional view at the middle BB.

[0019] Among them: test bench 10, connecting seat 20, countersunk hole 21, first part 22, second part 23, groove 24, guide hole 25, pressure block 30, fixing part 31, pressing part 32, terminal 40, electrical connection column 50, insulating sleeve 51, pad 60, guide sliding hole 61, guide rod 62, sinking part 63, tension spring 70, push rod 80, cylinder 90, through hole 81. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0021] like Figures 1 to 4 As shown, the stator lead head test connector described in this embodiment includes a test bench 10 and a connecting seat 20, the connecting seat 20 is detachably mounted on the table top of the test bench 10 through a pressure block 30, and a terminal 40 for connecting an external electrical performance test device is embedded on the side of the connecting seat 20, and an electrical connection column 50 electrically connected to the terminal 40 is provided; a pad 60 is provided on the top of the connecting seat 20, and a guide sliding hole 61 adapted to the electrical connection column 50 is provided on the pad 60, and a tension spring 70 is fixedly connected to the side of the pad 60 facing the connecting seat 20; a countersunk hole 21 for accommodating the tension spring 70 is provided on the top of the connecting seat 20, and the side of the tension spring 70 facing away from the pad 60 is fixed to the bottom of the countersunk hole 21; a push rod 80 is provided at the bottom of the pad 60, and the lower end of the push rod 80 extends to the bottom of the table top of the test bench 10, and a cylinder 90 coaxially arranged with the push rod 80 is provided under the table top of the test bench 10.

[0022] During implementation, test bench 10 serves as an operating platform, its surface provided with mounting holes for securing connector 20. Connector 20 is removably secured to test bench 10 via a pressure block 30, which can be a bolt, clamp, or other fastener to facilitate installation and removal of connector 20. Terminals 40 are embedded in the side of connector 20 for connecting to external electrical performance testing equipment, such as a motor stator test system. Electrical connection posts 50 within connector 20 are electrically connected to terminals 40, establishing a stable and reliable connection with the stator lead terminals for testing electrical properties such as AC withstand voltage, insulation resistance, turn-to-turn withstand voltage, DC resistance, inductance, reverse embedding, and steering.

[0023] During testing, the stator to be tested is first placed on the test bench 10. Under the action of the tension spring 70, the spacer 60 presses against the connection base 20, exposing the electrical connection pins 50. The stator lead is then aligned with and inserted into the electrical connection pins 50 on the spacer 60, ensuring close contact between the electrical connection pins 50 and the stator lead, establishing a reliable electrical connection. Next, the stator's electrical performance is tested using external test equipment connected to the terminals 40. When the test is complete, the cylinder 90 extends until the spacer 60 overcomes the preload of the tension spring 70, separating from the connection base 20 and completely disengaging the stator lead from the electrical connection pins 50. Finally, the cylinder 90 is retracted, causing the ejector pin 80 and spacer 60 to return to their original position under the action of the tension spring 70, ready for the next test.

[0024] In this way, the stator lead head test connector provided in this embodiment has a structural design that automatically tests and separates the stator lead head from the electrical connection column 50, which is easy to integrate into an automated testing system. It can be linked with other testing equipment (such as loading and unloading robots) to realize a fully automatic testing process, further improve test efficiency, reduce labor costs, and reduce the possibility of human error.

[0025] In some embodiments, as Figure 1 、 Figure 3 and Figure 4 As shown, the connector 20 includes a first portion 22 and a second portion 23 stacked one above the other. The second portion 23 has a groove 24 on the side facing the first portion 22. The terminal 40 is embedded in the second portion 23 and at least partially disposed within the groove 24. The electrical connection post 50 is fixed to the first portion 22 and at least partially disposed within the groove 24. With this structural design, firstly, the groove 24 provides space for the wiring harness connecting the terminal 40 and the electrical connection post 50, making internal wiring more regular and preventing the wiring harness from being exposed. It also protects the wiring harness from external damage, thereby improving the reliability and safety of the connection. Secondly, this modular design greatly simplifies the maintenance and replacement process. Whether the terminal 40 or the electrical connection post 50 fails, or a different model of terminal 40 needs to be replaced to adapt to different test equipment, only the corresponding component needs to be replaced, without disassembling or replacing the entire connector 20. This significantly reduces maintenance costs and time and improves equipment maintenance efficiency.

[0026] In some embodiments, as Figure 1 、 Figure 3 and Figure 4As shown, an insulating sleeve 51 is provided on the electrical connection column 50, and the top of the electrical connection column 50 is at least partially exposed outside the insulating sleeve 51; the aperture of the guide slide hole 61 is adapted to the diameter of the insulating sleeve 51. In this way, the insulating sleeve 51 can not only effectively isolate the electrical connection column 50 from other conductive components, ensuring the safety of operators and equipment, but also protect the electrical connection column 50 from damage such as wear, corrosion and oxidation, especially in the case of frequent plug-in and unplug testing, effectively extending its service life. In this embodiment, preferably, the insulating sleeve 51 is made of a brightly colored insulating material, such as red or yellow, so as to clearly mark the position of the electrical connection column 50, facilitate the operator to quickly and accurately perform connection and disconnection operations, and improve the safety of the operation.

[0027] In some embodiments, as Figure 1 、 Figure 3 and Figure 4 As shown, the pressure block 30 is provided on each side of the connecting seat 20, and the two pressure blocks 30 have a fixing portion 31 extending away from each other and a pressing portion 32 extending toward each other. The fixing portion 31 is fixed to the table surface of the test bench 10 by screws, so that the connecting seat 20 is fixed to the test bench 10 through the two pressing portions 32. In specific implementation, the fixing portion 31 of the pressure block 30 is fixed to the test bench 10 by screws, and then the connecting seat 20 is pressed by the pressing portion 32 to complete the installation of the connecting seat, that is, the two pressure blocks 30 are respectively located on both sides of the connecting seat 20, and the force is applied symmetrically, which can fix the connecting seat 20 more evenly and firmly, prevent it from moving or loosening during the test process, and ensure the stability and accuracy of the test. Even when subjected to large external forces, the stability of the connecting seat 20 can be maintained.

[0028] In some embodiments, as Figure 1 、 Figure 3 and Figure 4 As shown, the test bench 10 and the connecting base 20 are provided with a through hole 81 for the push rod 80 to pass through. The push rod 80 extends through the through hole 81 and is coaxially arranged relative to the piston rod of the cylinder 90. In this embodiment, two push rods 80 are provided at intervals. This through hole 81 guides the movement of the push rod 80, preventing it from deflecting or shaking during up and down movement. This ensures that the push rod 80 always remains coaxially aligned with the piston rod of the cylinder 90, thereby ensuring smooth, vertical movement of the spacer 60 and improving the stability and reliability of the connection.

[0029] In some embodiments, as Figure 1 、 Figure 3 and Figure 4As shown, the through hole 81 on the test bench 10 has an opening in a one-way magnified shape on the side away from the connecting base 20. In actual use, due to factors such as manufacturing tolerances, assembly errors, or long-term wear and tear, the center position of the push rod 80 may deviate from the center position of the piston rod of the cylinder 90. This deviation makes it difficult for the push rod 80 and the piston rod of the cylinder 90 to accurately dock with each other, and may even cause collision and jamming, affecting the normal operation of the connector. Therefore, the through hole 81 on the test bench 10 is designed to have an opening in a one-way magnified shape on the side away from the connecting base 20, such as a trumpet-shaped or conical shape, which can allow for larger displacement errors. Even if the push rod 80 has a certain offset, the piston rod of the cylinder 90 can smoothly enter the magnified through hole 81 and accurately dock with the end of the push rod 80, thereby ensuring the normal operation of the connector and improving assembly efficiency and fault tolerance.

[0030] In some embodiments, as Figure 1 、 Figure 3 and Figure 4 As shown, the spacer 60 is provided with a guide rod 62 coaxially arranged with the countersunk hole 21. The end of the guide rod 62 facing away from the spacer 60 passes through the tension spring 70 and extends into the countersunk hole 21. The bottom of the countersunk hole 21 is provided with a guide hole 25 adapted to fit the guide rod 62. In this way, the guide rod 62 effectively limits the lateral movement and rotation of the tension spring 70, preventing deformation, twisting, or deflection during compression or tension, thereby ensuring uniform force distribution across the spring and improving its stability and service life. Furthermore, the guide rod 62 also guides the vertical movement of the spacer 60, improving connection accuracy. Specifically, it further prevents the spacer 60 from tilting or swinging during movement, improves the alignment accuracy between the spacer 60 and the stator lead, and ensures connection reliability and the accuracy of test results.

[0031] In some embodiments, as Figure 1 、 Figure 3 and Figure 4 As shown, the guide rods 62 are fixedly connected to the spacer 60 via threads, and two guide rods 62 are provided. A sunken portion 63 is provided at the top of the spacer 60, exposing the top ends of the two guide rods 62. In this embodiment, the threaded connection also facilitates removal and replacement of the guide rods 62, facilitating maintenance and repair of the connector. The sunken portion 63 provides space for the top ends of the guide rods 62, preventing interference with other components and facilitating installation and removal of the spacer 60. The design of the sunken portion 63 also makes the top of the spacer 60 more flat, facilitating contact with the stator lead.

[0032] The stator lead test connector provided in this embodiment achieves a fast, stable and reliable electrical connection with the stator lead via a detachable connector, a cylinder-driven ejector rod, and a spacer with a guide hole. This design significantly shortens test preparation time, improves test efficiency and result accuracy, simplifies the operating process, and reduces operator skill requirements. Thanks to the stable and reliable connection method, poor contact and errors are effectively reduced, thereby ensuring the accuracy and reliability of test results.

[0033] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention 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 operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0034] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A stator lead head test connector, comprising a test bench and a connection seat, characterized in that: A connecting seat is detachably mounted on the table top of the test bench through a pressure block, and a terminal for connecting an external electrical performance test device is embedded in the side of the connecting seat, and an electrical connection column electrically connected to the terminal is provided; a pad is provided on the top of the connecting seat, and a guide sliding hole adapted to the electrical connection column is provided on the pad, and a tension spring is fixedly connected to the side of the pad facing the connecting seat; a countersunk hole for accommodating the tension spring is provided on the top of the connecting seat, and the side of the tension spring facing away from the pad is fixed to the bottom of the countersunk hole; a push rod is provided at the bottom of the pad, and the lower end of the push rod extends to the bottom of the table top of the test bench, and a cylinder coaxially arranged with the push rod is provided under the table top of the test bench.

2. The stator lead head test connector according to claim 1, characterized in that: The connecting seat includes a first part and a second part stacked up one above the other, a groove is provided on the side of the second part facing the first part, the terminal is embedded in the second part and at least partially placed in the groove; the electrical connecting column is fixed on the first part, and the electrical connecting column is at least partially placed in the groove.

3. The stator lead head test connector according to claim 1 or 2, characterized in that: An insulating sleeve is sleeved on the electrical connection column, and at least a portion of the top end of the electrical connection column is exposed outside the insulating sleeve; the aperture of the guide slide hole is adapted to the diameter of the insulating sleeve.

4. The stator lead head test connector according to claim 1 or 2, characterized in that: The pressure block is provided on each side of the connecting seat, and the two pressure blocks have a fixing portion extending away from each other and a pressing portion extending toward each other. The fixing portion is fixed to the table surface of the test bench by screws, so that the connecting seat is fixed to the test bench through the two pressing portions.

5. The stator lead head test connector according to claim 1, characterized in that: The test bench and the connecting seat are provided with a through hole for the push rod to pass through, and the push rod passes through the through hole and is coaxially arranged relative to the piston rod of the cylinder.

6. The stator lead head test connector according to claim 5, characterized in that: Two push rods are arranged at intervals.

7. The stator lead head test connector according to claim 5 or 6, characterized in that: The opening of the through hole on the test bench facing away from the connecting seat is in a one-way enlarged shape.

8. The stator lead head test connector according to claim 1, characterized in that: The pad is provided with a guide rod coaxially arranged with the countersunk hole. The end of the guide rod facing away from the pad passes through the tension spring and extends into the countersunk hole. The bottom of the countersunk hole is provided with a guide hole adapted to the guide rod.

9. The stator lead head test connector according to claim 8, characterized in that: The guide rod is fixedly connected to the cushion block via a thread, and two guide rods are provided; the top of the cushion block is provided with a sinking portion that exposes the top ends of the two guide rods.

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