Multi-core HAST test box coupler structure

Abstract

The utility model relates to a multi-core HAST test chamber connector structure which comprises a connector body, the connector body is installed on a pressure cavity of a test chamber, one end of the connector body is provided with threads, the threads are matched with a large nut, the connector body is installed on the pressure cavity, the connector body is provided with a step hole, and the step hole is matched with the large nut. Step small holes are evenly distributed and machined in the end face of the coupler body, step conical faces and internal threads are machined in the step small holes, a small screw is installed in each step small hole, external threads are arranged outside the small screws and matched with the internal threads, and through holes are formed in the middles of the small screws. A wire penetrates through the center of the small screw, the center of the hollow sealing piece, the center of the stepped hole and the center of the stepped hole, the wire penetrates through the stepped hole and penetrates through the hollow sealing piece and the through hole of the small screw respectively, and the external thread and the internal thread are matched and tightened to extrude the hollow sealing piece so that the hollow sealing piece and the stepped conical surface can be sealed. And the hollow sealing element generates elastic deformation, so that the wire sheath is sealed with the inner hole of the sealing element.

Description

Technical Field

[0001] The utility model relates to a multi-core HAST test box connector structure. Background Art

[0002] With the continuous advancement of technology, numerous fields, including aviation, aerospace, new energy, electronics, chips, semiconductors, and AI, are placing ever-stricter demands on products and components. The lifespan and reliability of core electronic components, semiconductors, and chips within control systems directly impact the safe and reliable operation of components, even entire machines and systems. Even the slightest deviation can result in irreparable and significant losses.

[0003] As crucial equipment for product reliability testing, environmental test chambers play a vital role in product development, design, acceptance, and testing across a wide range of industries. HAST (Hybrid Aging Test) chambers are particularly important in the electronics, semiconductor, and chip industries. Japanese brands have a near monopoly on HAST chambers.

[0004] As a key component of the HAST aging test chamber, the connector primarily connects external test equipment to the test piece within the chamber, enabling real-time transmission of test data and communication. However, due to the high temperature, pressure, and humidity environment within the chamber, and the high number of communication channels required, the connector's structure and performance directly impact the reliability of test data.

[0005] The common practice of commonly used connectors is to open a hole in the wall of the pressure barrel, and make a relatively large plug with insulating and high-temperature resistant materials to ensure the sealing of the barrel wall. At the same time, many stainless steel round rods are installed on the plug, passing through the plug, leaving a small section inside and outside for welding cables. The cables are welded on both ends of the stainless steel round rods using a special process. The outer end of the cable can be connected to the test equipment, and the inner cable is connected to the test piece.

[0006] The structural shortcomings of this connector are particularly significant. It can only be used for simple switching signals and power supply, resulting in a relatively short lifespan. The spacing between each channel is relatively tight, and the welding of stainless steel and copper wire requires specialized processes, making welding reliability uncertain. In the high-temperature, high-humidity, and high-pressure environment of a workstation, solder joints are also prone to aging and desoldering. Stable signal transmission for hundreds of channels cannot be guaranteed, and even slight changes in the electrical signal can lead to erroneous results. Many current tests require a large number of channels, and the supply of high voltage and current to the test piece is highly demanding. Short circuits and other issues can easily occur in such high-temperature, high-humidity, and high-pressure environments. Utility Model Content

[0007] In order to overcome the above-mentioned shortcomings, the utility model provides a multi-core HAST test box connector structure which can meet the multi-channel requirements and has no welding points in the middle of the communication cable.

[0008] The purpose of this utility model is achieved in this way:

[0009] A multi-core HAST test chamber connector structure includes a connector body, which is installed on the pressure chamber of the test chamber. A thread is provided at one end of the connector body, and the thread cooperates with a large nut to install the connector body on the pressure chamber. A step hole is provided on the connector body, and step holes are evenly distributed on the end surface of the connector body. The step holes are processed with step cone surfaces and internal threads. A small screw is installed in each step hole. The outside of the small screw is provided with an external thread that cooperates with the internal thread. A through hole is provided in the middle of the small screw. A wire is passed through the center of the small screw, a hollow seal, a step hole, and the center of the step hole. The wire passes through the step hole and respectively passes through the through holes of the hollow seal and the small screw. The external thread and the internal thread are tightened to squeeze the hollow seal so that the hollow seal and the step cone surface are sealed, and the hollow seal is elastically deformed so that the outer skin of the wire is sealed with the inner hole of the seal.

[0010] The outer side of the connector body is provided with a step.

[0011] A sealing groove is provided on the connector body, and a sealing ring is installed in the sealing groove.

[0012] A hollow sealing member is arranged between the bottom step conical surfaces of the small screw, and a conical surface is processed on one end of the hollow sealing member.

[0013] One end of the small screw is machined with a step.

[0014] The beneficial effects of the utility model are:

[0015] This multi-core HAST test chamber connector utilizes a modular design. Each connector supports dozens of channels, allowing multiple connectors to meet multi-channel requirements. Furthermore, the communication cable used has no welds, connecting directly from the test equipment to the test specimen. The cable itself is designed to withstand high temperatures, high voltages, and currents, meeting all current testing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of a multi-core HAST test box connector structure of the present utility model.

[0017] Figure 2 This is an enlarged view of the end face of a multi-core HAST test box connector of the utility model.

[0018] In the figure: connector body 1, step 2, sealing groove 3, sealing ring 4, thread 5, large nut 6, step hole 7, wire 8, step hole 9, step cone 10, hollow seal 11, internal thread 12, small screw 13, through hole 14, step 15, external thread 16, pressure chamber 17. DETAILED DESCRIPTION

[0019] See also Figure 1 and Figure 2 The utility model relates to a multi-core HAST test box connector structure, including a connector body 1, which is installed on the pressure cavity 17 of the test box. A step 2 is provided on the outer side of the connector body 1, which is mainly used to facilitate the installation, disassembly and replacement of the connector.

[0020] One end of the coupling body 1 has a thread 5, which cooperates with a large nut 6 to tightly mount the coupling body 1 on the pressure chamber 17 and ensure a seal. The coupling body 1 has a sealing groove 3, in which a sealing ring 4 is installed to ensure a seal between the pressure chamber 17 and the coupling body 1.

[0021] A stepped hole 7 is provided on the connector body 1, and stepped small holes 9 are evenly distributed on the end face of the connector body 1. The stepped small holes 9 are processed with stepped conical surfaces 10 and internal threads 12. A small screw 13 is installed in each stepped small hole 9. The outside of the small screw 13 is provided with an external thread 16 to cooperate with the internal thread 12. A through hole 14 is provided in the middle of the small screw 13, and a step 15 is processed at one end of the small screw 13 to facilitate tightening the small screw 13. A hollow seal 11 is provided between the bottom stepped conical surface 10 of the small screw 13 for sealing, and one end of the hollow seal 11 is processed with a conical surface.

[0022] A wire 8 is passed through the center of the small screw 13, the hollow seal 11, the stepped hole 9, and the stepped hole 7. The wire 8 passes through the stepped hole 9 and respectively passes through the hollow seal 11 and the through hole 14 of the small screw 13. The external thread 16 and the internal thread 12 of the small screw 13 are tightened together to squeeze the hollow seal 11, so that the hollow seal 11 and the stepped cone surface 10 are sealed, and the hollow seal 11 is elastically deformed to seal the outer skin of the wire 8 with the inner hole of the seal. The wire 8 is a customized product that meets the high temperature, high humidity and high pressure environment and can be designed for high voltage and high current.

[0023] This patented design overcomes the structural defects of traditional connectors and fills the domestic gap in this field.

Claims

1. A multi-core HAST test chamber connector structure, characterized by: The connector comprises a connector body, which is installed on the pressure chamber of the test chamber. A thread is provided at one end of the connector body, and the thread cooperates with the large nut to install the connector body on the pressure chamber. A step hole is provided on the connector body, and step holes are evenly distributed on the end face of the connector body. The step holes are processed with step cones and internal threads. A small screw is installed in each step hole. The external surface of the small screw is provided with an external thread that cooperates with the internal thread. A through hole is provided in the middle of the small screw. A wire is passed through the center of the small screw, the hollow seal, the step hole, and the step hole. The wire passes through the step hole and respectively passes through the through holes of the hollow seal and the small screw. The external thread and the internal thread are tightened to squeeze the hollow seal so that the hollow seal and the step cone are sealed, and the hollow seal is elastically deformed so that the outer skin of the wire is sealed with the inner hole of the seal.

2. A multi-core HAST test chamber connector structure according to claim 1, characterized in that: The outer side of the connector body is provided with a step.

3. The multi-core HAST test chamber connector structure according to claim 1, characterized in that: A sealing groove is provided on the connector body, and a sealing ring is installed in the sealing groove.

4. The multi-core HAST test chamber connector structure according to claim 1, characterized in that: A hollow sealing member is arranged between the bottom step conical surfaces of the small screw, and a conical surface is processed on one end of the hollow sealing member.

5. The multi-core HAST test chamber connector structure according to claim 1, characterized in that: One end of the small screw is machined with a step.

Images