Plug-in connector suitable for vacuum environment

Abstract

The utility model belongs to the technical field of signal transmission, and particularly relates to a plug-in connector suitable for a vacuum environment, the plug-in connector comprises a protective cover and a connecting part located in the protective cover and limited by the protective cover, one or more conductive parts are arranged in the connecting part, and a plurality of wire slots for wiring are symmetrically formed in the connecting part; the conductive piece is a metal conductive piece, and the connecting part is a non-metal insulating connecting part; by adopting the metal conductive piece and the non-metal insulation connecting part, the connector has better high temperature resistance, low temperature resistance and irradiation resistance; the device is suitable for baking and degassing in a vacuum environment; various designs beneficial to vacuum exhaust are adopted, the outgassing rate in a vacuum environment is low, the vacuum degree cannot be damaged, and the vacuum environment cannot be polluted; by adopting the oppositely-inserted concave-convex structure, electric arcs are prevented from being generated between the conductive needles or between the conductive needles and the conductor outside the connector under vacuum, and the voltage resistance and the electric insulation performance of the connector under vacuum are enhanced.

Description

Technical Field

[0001] This application relates to the field of signal transmission technology, specifically to a mating connector suitable for vacuum environments. Background Technology

[0002] A mating connector typically consists of the following parts: a plug, a socket, male pins, and female pins. The male and female pins are used to connect wires and are installed inside the plug or socket. Sockets and plugs usually have positioning and locking mechanisms to prevent reverse insertion or loosening.

[0003] Mating connectors used in atmospheric environments are very common; however, they cannot be used in vacuum environments. There are several main reasons for this:

[0004] 1. The material itself will release gas under vacuum.

[0005] For connectors used in atmospheric environments, non-metallic materials are generally plastics with a long-term temperature resistance of up to 125℃, such as PC, PA6, PA66, PVC, PP, LCP, PBT, ABS, PS, etc., which are sufficient for general atmospheric temperature environments.

[0006] However, these materials are not suitable for use in a vacuum environment because atmospheric gases will be adsorbed onto the material surface and dissolved inside the material. When the material is placed under vacuum conditions, the adsorbed or dissolved gases will be slowly released. Some polymer materials, due to the addition of various additives (plasticizers, antioxidants, initiators, etc.) during processing, as well as residual low molecular weight substances, will diffuse, desorb, and escape into the vacuum chamber when the material is placed in a vacuum.

[0007] Metallic materials: Compared to plastics, metals have a much lower gas release rate. However, metallic materials used in vacuum environments still require airtightness and gas release capability. At room temperature, hydrogen has a high permeability to certain metals (such as iron, nickel, and carbon steel), and the permeability of hydrogen to steel increases with increasing carbon content.

[0008] In vacuum technology, the vapor pressure and evaporation (sublimation) rate of materials are important parameters. Solids will vaporize to some extent at any temperature, forming vapor. The temperature and pressure corresponding to the equilibrium of the three states of matter (liquid, solid, and saturated vapor) are called the triple point. The temperature of the triple point is actually the melting temperature of the substance at its saturated vapor pressure. When the temperature of a solid (such as room temperature) is much lower than its freezing temperature, the saturated vapor pressure is very small. However, in vacuum engineering, high-temperature metals are frequently encountered (such as in vacuum melting, evaporation coating, and degassing of molten steel), where their saturated vapor pressure can be significant.

[0009] Obviously, materials with high vapor pressures within the operating temperature range of a vacuum system cannot be used. Within the operating temperature range, the saturated vapor pressure of all materials facing a vacuum should be sufficiently low; otherwise, their own vapor pressure or outgassing characteristics will prevent the vacuum system from achieving the required working vacuum level (or cause an excessive reduction in vacuum level). Although the vapor pressure of some materials is very low at room temperature, sometimes even imperceptible, it can eventually rise to a measurable value as the temperature increases. For example, some refractory metals require temperatures above 1500°C to measure their vapor pressure, but some metals (such as zinc, cadmium, and lead) have very high vapor pressures at 300–500°C, exceeding the pressure required by high vacuum systems. For example, cadmium has a vapor pressure of 10 Pa at 300°C, so these metals (or their alloys) cannot be used in high vacuum or ultra-high vacuum systems with baking processes.

[0010] The copper alloy used in ordinary connectors is generally brass (containing zinc), and the metal shell is generally zinc alloy or carbon steel. The connector wiring parts are generally soldered (containing tin). Zinc and tin are both metals with high vapor pressure. Because brass has a high zinc content and zinc has a high vapor pressure, it will release gas when heated, affecting the vacuum level and contaminating the vacuum system. Therefore, its operating temperature generally does not exceed that of vacuum systems used for baking and ultra-high vacuum systems.

[0011] Metals and alloys produced by conventional smelting methods often fail to meet the requirements of electro-vacuum and ultra-high vacuum processes. Materials used in electro-vacuum and ultra-high vacuum applications must minimize impurities within the metal that are harmful to vacuum devices and their manufacturing processes. Ultra-high vacuum, especially vacuum systems requiring high-temperature baking, cannot use metals with high vapor pressure (such as those containing zinc, cadmium, or tin).

[0012] 2. Structure. Some conventional threaded locking mechanisms and blind hole dead zones can trap air after assembly. These structures can also be a source of venting under vacuum conditions.

[0013] 3. Vacuum arcing is a physical phenomenon that occurs when the absolute vacuum level is within a specific range (generally 0.1 Pa to 5000 Pa) and the voltage exceeds a certain value. The breakdown voltage is related to the material, shape, distance between the electrodes, and the gas composition; it can only occur under specific conditions. Ordinary pluggable connectors, because they operate in an atmospheric environment, will not experience arcing.

[0014] Therefore, the materials used in room-temperature connectors have a high gas release rate, which will release gas in a vacuum environment, affecting the vacuum level and vacuum cleanliness, and even the ultimate vacuum level of the vacuum chamber. Furthermore, vacuum environments are generally accompanied by ultra-high temperatures, ultra-low temperatures, and irradiation. Some other materials, such as certain plastics or rubbers, cannot be used in ultra-high vacuum environments because they cannot be heated or baked and have excessively high vapor pressures. These common materials do not meet the requirements.

[0015] Ordinary connectors are not designed, manufactured, stored, or installed with any consideration given to their performance under vacuum conditions, and therefore are not suitable for vacuum environments. Utility Model Content

[0016] The purpose of this application is to provide a mating connector suitable for vacuum environments to solve the technical problems mentioned in the background art.

[0017] To achieve the above objectives, this application provides the following technical solution: a mating connector suitable for a vacuum environment, comprising a connecting part, wherein one or more conductive elements are disposed inside the connecting part, and the connecting part is provided with a plurality of wire grooves for wiring.

[0018] The conductive component is a metallic conductive component, and the connecting part is a non-metallic insulating connecting part.

[0019] In one embodiment, the connecting part includes a first connector and a second connector that is plugged into the first connector.

[0020] In one embodiment, a protrusion is integrally formed on one side of the connector.

[0021] In one embodiment, the conductive component includes conductive pin 2 and conductive pin 1 respectively fixed in the inner grooves of connector 1 and connector 2, a claw fixed to the outside of conductive pin 1 and conductive pin 2 for fixing conductive pin 1 and conductive pin 2 to the inner wall of the groove, a plug-in end integrally formed on one end of conductive pin 1, a plug hole opened on one end of conductive pin 2, a wire crimping hole opened on one end of conductive pin 1 and conductive pin 2, and a vent hole opened inside conductive pin 1 and conductive pin 2 and connected to the wire crimping hole for venting after wire crimping.

[0022] In one embodiment, the inner wall of the socket is fixed with an elastic element for insertion and removal contact with the insertion end.

[0023] In one embodiment, the first connector and the second connector are connected by a concave-convex structure. The concave-convex structure includes a protrusion integrally formed on one side of the first connector or the second connector, and a groove formed on one side of the first connector or the second connector for accommodating the protrusion. The protrusion has multiple slots that communicate with multiple wire grooves inside, and the groove has multiple insertion parts that are fixedly connected to the slots.

[0024] In one embodiment, the inner wall of the groove is provided with a misalignment flange, and the outer surface of the protrusion is provided with a misalignment groove that matches the misalignment flange.

[0025] In one embodiment, a protective cover is further included, which is sleeved on the outside of the connecting part and limits the connection part. The protective cover includes a cover body one and a cover body two, and the cover body one and the cover body two are connected by a locking structure. The inner walls of the cover body one and the cover body two are integrally formed with limiting flanges for limiting the two ends of the connecting part, and the interior of the cover body one and the cover body two are provided with wire bundling holes. The cover body one and the cover body two are made of metal or non-metal materials, and the shape of the protective cover includes circular and rectangular.

[0026] In one embodiment, the locking structure is a threaded connection, the outer surface of connector one or connector two is provided with external threads, and the inner wall of cover one or cover two is provided with internal threads that match the external threads on the outer surface of connector one or connector two.

[0027] In one embodiment, the external thread has a second venting groove, and the internal thread has a first venting groove for venting.

[0028] Compared with the prior art, the beneficial effects of this application are:

[0029] 1) This application improves the high temperature resistance, low temperature resistance, and radiation resistance of the connector by using metal conductive parts and non-metallic insulating connection parts; it is suitable for baking and degassing in a vacuum environment.

[0030] 2) This application adopts various designs that are conducive to vacuum exhaust. The release rate is low in a vacuum environment, which will not damage the vacuum level or pollute the vacuum environment.

[0031] 3) The connection part of this application adopts a mating concave-convex structure to prevent electric arcs (also called vacuum arcing, vacuum discharge, vacuum electrical breakdown, etc.) from being generated between conductive pins or between conductive pins and conductors outside the connector under vacuum, thereby enhancing the voltage withstand performance and electrical insulation performance of the connector under vacuum. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of this application;

[0033] Figure 2 This is a cross-sectional view of this application;

[0034] Figure 3 This is an exploded view of this application;

[0035] Figure 4 This is a schematic diagram of the structure of the misalignment flange and the insertion part of this application;

[0036] Figure 5 This is a schematic diagram of the bottom structure of connector two in this application;

[0037] Figure 6 This is a schematic diagram of the protrusions, slots, bumps, and misalignment grooves in this application.

[0038] Figure 7 This is a schematic diagram of the conductive component structure of this application.

[0039] In the diagram: 1. Protective cover; 11. Cover body one; 12. Cover body two; 13. Cable harness hole; 14. Vent groove one; 15. Limiting flange; 2. Connecting part; 21. Connecting piece one; 211. Protrusion; 212. Slot; 213. Protrusion; 214. Anti-foolproof alignment groove; 22. Connecting piece two; 221. Anti-foolproof alignment flange; 222. Insertion part; 223. Groove; 23. Cable groove; 24. Vent groove two; 3. Conductive component; 31. Conductive pin one; 311. Insertion / removal end; 32. Conductive pin two; 321. Elastic element; 33. Claw; 34. Vent hole; 35. Wire crimping hole. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] Example 1:

[0043] Please see Figure 1-7This application provides a technical solution: a plug-in connector suitable for vacuum environments, including a protective cover 1 (in this embodiment, the protective cover 1 can be an integral outer shell that covers and protects the connecting part 2, thus achieving the functions of protection and electromagnetic shielding) and a connecting part 2 located inside the protective cover 1 and limited by the protective cover 1 (in this embodiment, the connecting part 2 can be an integral connecting part 2, without dividing it into two parts and connecting them by plugging and unplugging, so that the two ends of the conductive element 3 inside the connecting part 2 can be directly wired without plugging and unplugging). The shape of the protective cover 1 includes circular and rectangular shapes. The rectangular structure is more suitable for installation and fixing on a plane. The connecting part 2 is provided with at least one conductive element 3 (in this embodiment, the conductive element 3 can be an integral conductive element 3 with direct wiring at both ends. The wiring method can be plugging and unplugging wiring or direct wiring). The connecting part 2 is symmetrically provided with multiple wire grooves 23 for wiring. The wire passes through the wire grooves 23 and connects to the conductive element 3.

[0044] The conductive component 3 is a metallic conductive component 3. In vacuum systems, commonly used metals and their alloys include: low carbon steel, stainless steel, copper, aluminum, nickel, gold, silver, tungsten, molybdenum, tantalum, niobium, titanium, indium, gallium, Kovar alloy, nickel-chromium (iron) alloy, magnetic alloy, copper alloy, etc.

[0045] In high vacuum and ultra-high vacuum systems with vacuum levels above 1.3 x 10⁻⁴ Pa, austenitic non-magnetic stainless steel (such as 1Cr18Ni9Ti, 0Cr18Ni9) should be used to manufacture the shell, pipes, or other components of the vacuum vessel. This type of stainless steel possesses excellent corrosion resistance, low outgassing rate, non-magnetic properties, good weldability, low electrical and thermal conductivity, and can operate within a temperature range of -270℃ to +900℃. It also exhibits high strength, plasticity, and toughness. These properties make austenitic stainless steel the primary structural material used in current ultra-high vacuum metal systems.

[0046] For conductive components 3, oxygen-free copper and beryllium copper are most commonly used in high vacuum and ultra-high vacuum. Oxygen-free copper has high purity (copper content not less than 99.98%), extremely low oxygen content, and does not contain cuprous oxide. It does not become brittle when heated, has good vacuum tightness, low solubility for gases, does not permeate hydrogen and helium at room temperature, and has poor sensitivity to oxygen and water vapor. Therefore, it is suitable for use in ultra-high vacuum. Beryllium copper contains 2% beryllium, which can improve the strength and elasticity of beryllium bronze. Therefore, tin- and zinc-free beryllium copper is often used to manufacture elastic elements (such as springs, spring contacts, etc.), bellows, electrical contacts, turbines, and other parts with low heating temperatures used in vacuum equipment.

[0047] The connecting part 2 is a non-metallic insulating connecting part 2. The non-metallic insulating materials include glass, ceramics, polytetrafluoroethylene, Viton A, PI, PEEK and other insulating non-metallic materials. Non-metallic materials can withstand high-temperature baking and have a relatively low outgassing rate. These materials can be used in ultra-high vacuum systems after baking and degassing.

[0048] Example 2:

[0049] The difference between Embodiment 2 and Embodiment 1 is that the protective cover 1 in this embodiment adopts a method of connecting cover body 11 and cover body 2 12, and cover body 11 and cover body 2 12 are connected by a locking structure, which includes structural schemes such as threads, screws, bolts, pins, buckles, and push-pull self-locking.

[0050] like Figure 2 As shown, in this embodiment, the locking structure is a threaded connection. The inner wall of the cover 11 is provided with an internal thread, and the outer wall of the cover 2 is provided with an external thread. Alternatively, the outer wall of the cover 11 may be provided with an external thread, and the inner wall of the cover 2 may be provided with an internal thread. The internal and external threads are screwed together. There is a gap between the cover 11 and the cover 2 and the connecting part 2 for venting. A venting groove 14 is provided in the thread for venting to prevent air from being trapped in the threaded gap. The venting groove 14 can be provided on the internal and external threads, and there can be one or more.

[0051] Example 3:

[0052] Based on Example 2, Example 3 also includes a limiting flange 15 integrally formed on the inner walls of the first cover 11 and the second cover 12 for limiting the two ends of the connecting part 2. The limiting flange 15 not only limits the connection but also prevents it from being mistakenly inserted, and is used to check whether the connecting part 2 has reached the designated position.

[0053] Both housing 11 and housing 2 have cable bundling holes 13 inside for cable management. The purpose of cable bundling is to organize and tidy up the cable bundles, making the wiring more aesthetically pleasing. In actual use, the location of the cable bundling holes 13 in housing 11 and housing 2 may vary. For example, the cable bundling holes 13 may be located on the side, and the cable exit angle may be a right angle, a bend, etc. There may also be multiple cable bundling holes 13.

[0054] The materials of the cover 11 and cover 2 12 are metal or non-metal. When metal is used, it also has the function of electromagnetic shielding. The cover 11 and cover 2 12 have four functions: first, to lock the connecting part 2; second, to protect the connecting part 2 from external impact; third, to bundle the wires; and fourth, to provide electromagnetic shielding.

[0055] Example 4:

[0056] In Example 4, based on Example 3, the connecting part 2 is composed of a first connector 21 and a second connector 22 that is plugged into the first connector 21. The first connector 21 and the second connector 22 can also be connected by a locking structure, such as a plug-in self-locking structure. The conductive part 3 includes a second conductive pin 32 and a first conductive pin 31, which are respectively fixed in the inner groove 23 of the first connector 21 and the second connector 22, a plug-in end 311 integrally formed at one end of the first conductive pin 31, and a plug hole opened at one end of the second conductive pin 32. When the first connector 21 and the second connector 22 are plugged into each other, the ends of the first conductive pin 31 and the second conductive pin 32 are plugged together, thereby forming an electrical connection. The above scheme is illustrated as one of the schemes. It is also possible that one end of the second conductive pin 32 is needle-shaped and one end of the first conductive pin 31 is hole-shaped. The first conductive pin 31 and the second conductive pin 32 are not necessarily of the same size. There may be multiple large and small pins of different sizes that are plugged into and unplugged on the same connector.

[0057] The conductive pin 31 and conductive pin 32 may not necessarily be plugged in at one end and have a wire at the other end. They may also be plugged in at both ends (one end of conductive pin 31 and conductive pin 32 is plugged in, and the other end of conductive pin 31 and conductive pin 32 is plugged in to the wire).

[0058] The connection between connector 1 (21) and connector 2 (22) is not necessarily one-to-one; it could also be one-to-many or many-to-many, which can solve more complex wiring requirements.

[0059] Example 5:

[0060] Based on embodiment 4, connector 1 21 and connector 22 are connected by a concave-convex structure. The concave-convex structure includes a protrusion 211 integrally formed on one side of connector 1 21 or connector 22, and a groove 223 formed on one side of connector 1 21 or connector 22 to accommodate the protrusion 211. The protrusion 211 has multiple slots 212 communicating with multiple wire grooves 23, and multiple insertion parts 222 for insertion into the slots 212 are fixedly connected in the grooves 223. When connector 1 21 and connector 222 are inserted, the insertion parts 222 are inserted into the slots 212, forming the concave-convex structure. This structure aims to prevent electric arcs (also called vacuum arcing, vacuum discharge, vacuum breakdown, etc.) between conductive pins or between conductive pins and external conductors of the connector under vacuum, thus enhancing the voltage withstand performance and electrical insulation performance of the connector 2 under vacuum. A gap is also reserved after the concave-convex structure is fitted to prevent air entrapment.

[0061] The inner wall of the groove 223 is provided with a misalignment flange 221, and the outer surface of the protrusion 211 is provided with a misalignment groove 214 that matches the misalignment flange 221. When the misalignment flange 221 and the misalignment groove 214 are engaged, they can prevent incorrect insertion direction when connector 1 21 and connector 22 are inserted. Figure 4 and Figure 5 The foolproof structure shown is an arc, but there are other foolproof structures, such as straight grooves, raised dots, markings, and other shapes, or there may be multiple foolproof structures.

[0062] One side of the connector 21 has an integrally formed protrusion 213 to prevent air from getting trapped on the plane when the connector 21 and connector 22 are inserted. The protrusion is just one option; it could also be a groove, a recess, a step, etc., and there could be multiple protrusions.

[0063] Example 6:

[0064] Based on embodiment 5, the inner wall of cover 11 or cover 22 is provided with internal threads, and the outer surface of connector 11 or connector 22 is provided with external threads that match the internal threads, and an exhaust groove 24 is provided in the external threads. Cover 22 is screwed to the outside of connector 121, and a threaded engagement limiting flange 15 is used to lock connector 11 or connector 22 after they are inserted to prevent loosening and power failure. Figure 2 Only one scheme is shown in the figure. It is also possible that the cover 11 is screwed to the outside of the connector 22. The connector 22 has external threads, the cover 11 has external and internal threads, the cover 22 has internal threads, and the exhaust groove 24 is used to prevent air from being trapped in the threaded fit clearance.

[0065] Example 7:

[0066] Based on embodiment 6, the conductive component 3 includes a claw 33 fixed to the outside of conductive pin 1 31 and conductive pin 2 32 for fixing conductive pin 1 31 and conductive pin 2 32 to the inner wall of the wire groove 23; a wire crimping hole 35 opened at one end of conductive pin 1 31 and conductive pin 2 32; and a vent hole 34 opened inside conductive pin 1 31 and conductive pin 2 32 and connected to the wire crimping hole 35 for venting after wire crimping. By providing the wire crimping hole 35, the wiring of conductive pin 1 31 and conductive pin 2 32 can adopt a thin-wall crimping structure, preventing the use of soldering, because tin-containing materials should be avoided under vacuum. The wire crimping hole 35 is a blind hole, and a vent hole 34 is provided at the root of the blind hole for venting after crimping.

[0067] Example 8:

[0068] Based on Embodiment 8, an elastic element 321 for insertion and extraction contact with the insertion / extraction end 311 is fixedly connected to the inner wall of the socket. The elastic element 321 has a hyperboloid design and multiple axial grooves along its circumference. The elastic element 321 is made of beryllium copper. This structure not only ensures sufficient insertion and extraction force but also maximizes the number of contact conductive points without affecting ventilation. This structure of the elastic element 321 in this application is only one feasible solution; other grooves and curved surface shapes exist, such as crown springs, torsion springs, wire springs, claw springs, finger springs, and grooved structures. In summary, the elastic element 321 is a structure with multiple elastic contact points.

[0069] The foregoing has shown and described the basic principles, main features, and advantages of this application. It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or basic characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this application is defined by the appended claims rather than the foregoing description. Therefore, it is intended to encompass all variations falling within the meaning and scope of equivalents of the claims within this application, and no reference numerals in the claims should be regarded as limiting the scope of the claims.

[0070] All the surfaces of the above components are made as smooth as possible, and all planar fits, clearance fits, threaded fits, and blind holes are specially equipped with venting channels.

[0071] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mating connector suitable for vacuum environments, characterized in that, It includes a connecting part (2), and one or more conductive parts (3) are provided inside the connecting part (2). The connecting part (2) has multiple wire grooves (23) for wiring. The conductive element (3) is a metal conductive element (3), and the connecting part (2) is a non-metallic insulating connecting part (2).

2. The mating connector suitable for vacuum environments according to claim 1, characterized in that: The connecting part (2) includes a first connector (21) and a second connector (22) that is plugged into the first connector (21).

3. A mating connector suitable for vacuum environments according to claim 2, characterized in that: One side of the connector (21) is integrally formed with a protrusion (213).

4. A mating connector suitable for vacuum environments according to claim 3, characterized in that: The conductive component (3) includes conductive pin 2 (32) and conductive pin 1 (31) respectively fixed in the inner groove (23) of connector 1 (21) and connector 2 (22), a claw (33) fixed outside conductive pin 1 (31) and conductive pin 2 (32) for fixing conductive pin 1 (31) and conductive pin 2 (32) to the inner wall of the groove (23), a plug-in end (311) integrally formed on one end of conductive pin 1 (31), a plug hole opened on one end of conductive pin 2 (32), a wire crimping hole (35) opened on one end of conductive pin 1 (31) and conductive pin 2 (32), and a vent hole (34) opened inside conductive pin 1 (31) and conductive pin 2 (32) and connected to the wire crimping hole (35) for venting after wire crimping.

5. A mating connector suitable for vacuum environments according to claim 4, characterized in that: The inner wall of the socket is fixed with an elastic element (321) for insertion and removal contact with the insertion end (311).

6. A mating connector suitable for vacuum environments according to claim 5, characterized in that: The first connector (21) and the second connector (22) are connected by a concave-convex structure. The concave-convex structure includes a protrusion (211) integrally formed on one side of the first connector (21) or the second connector (22) and a groove (223) opened on one side of the first connector (21) or the second connector (22) for accommodating the protrusion (211). The protrusion (211) has multiple slots (212) that communicate with multiple wire grooves (23) inside, and the groove (223) has multiple insertion parts (222) fixedly connected to the slots (212).

7. A mating connector suitable for vacuum environments according to claim 6, characterized in that: The inner wall of the groove (223) is provided with a misalignment flange (221), and the outer surface of the protrusion (211) is provided with a misalignment groove (214) that matches the misalignment flange (221).

8. A mating connector suitable for a vacuum environment according to claim 6 or 7, characterized in that: It also includes a protective cover (1) that is fitted outside the connecting part (2) and limits the connecting part (2). The protective cover (1) includes a cover body one (11) and a cover body two (12), and the cover body one (11) and the cover body two (12) are connected by a locking structure. The inner walls of the cover body one (11) and the cover body two (12) are integrally formed with limiting flanges (15) for limiting the two ends of the connecting part (2), and the inside of the cover body one (11) and the cover body two (12) are provided with wire bundling holes (13) for bundling wires. The material of the cover body one (11) and the cover body two (12) is metal or non-metal. The shape of the protective cover (1) includes circular and rectangular.

9. A mating connector suitable for vacuum environments according to claim 8, characterized in that: The locking structure is a threaded connection. The outer surface of the first connector (21) or the second connector (22) is provided with an external thread, and the inner wall of the first cover (11) or the second cover (12) is provided with an internal thread that matches the external thread on the outer surface of the first connector (21) or the second connector (22).

10. A mating connector suitable for a vacuum environment according to claim 9, characterized in that: The external thread has a second venting groove (24), and the internal thread has a first venting groove (14) for venting.

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