Straight sealing connector

Abstract

The invention discloses a straight type sealing connector, and belongs to the technical field of connectors, the straight type sealing connector comprises a plug piece, a socket piece and a tail accessory, the socket piece is electrically connected with the plug piece through a locking component, the locking component comprises a thread sleeve used for connecting the plug piece and the socket piece, the end part of the thread sleeve is connected with the plug piece through a shockproof cavity, and the tail accessory is arranged in the shockproof cavity. A ratchet wheel assembly and a waveform ring used for limiting the ratchet wheel assembly are arranged in the shockproof cavity, the socket piece comprises a socket shell and a socket base combining piece arranged in the socket shell, and the end of the socket shell is connected with the tail accessory in an inserted mode through a second sealing ring. Through reasonable arrangement of the ratchet wheel assembly in combination with the sealing ring and the O-shaped ring, the straight type sealing connector is stable and reliable in structure, has good waterproof and anti-vibration performance, and can effectively solve the problems that an existing straight type sealing connector is poor in reliability in a vibration environment, the sealing effect of the sealing ring is poor, and the sealing performance is poor. And environmental moisture or other pollutants are easy to enter the interior.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, in particular to a straight sealed connector. Background Art

[0002] As a type of connector with a sealing function, straight sealed connectors are widely used in applications requiring high reliability and environmental protection, such as aerospace, military, industrial automation, and marine engineering. Through their design, these connectors effectively prevent the ingress of liquids, gases, or particles, ensuring a seal at the connection point.

[0003] Existing straight sealed connectors are susceptible to high-frequency vibration or impact, and their mechanical locking mechanisms are susceptible to failure. This weakens the connection and compromises reliability in vibrating environments. Furthermore, the elastic materials or mechanical components can experience material fatigue over time, shortening the connector's lifespan. Sealing rings can age and deform in high-humidity or chemically corrosive environments, losing their sealing effectiveness and allowing moisture and other environmental contaminants to enter. These issues are particularly pronounced in applications with frequent plugging and unplugging. While improving these two performance characteristics often comes at the expense of increased manufacturing costs, this in turn reduces overall reliability and service life.

[0004] Therefore, it is urgent to develop a straight sealed connector that has a stable and reliable structure and can be used in multiple environments. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned background technical difficulties, and the present invention provides a straight sealed connector with a stable and reliable structure and adaptable to use in multiple environments.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a straight sealed connector, comprising a plug member, a socket member, and a tail member, wherein the socket member is electrically connected to the plug member via a locking member, the locking member comprising a screw sleeve for connecting the plug member and the socket member, a No. 1 O-ring being disposed between the screw sleeve and the plug member, the end of the screw sleeve being connected to the plug member via a shockproof cavity, and a ratchet assembly and a wave ring for limiting the position of the ratchet assembly being disposed within the shockproof cavity, the ratchet assembly comprising a movable ratchet in contact with the wave ring and a stationary ratchet meshing with the movable ratchet; The socket component includes a socket housing and a socket base assembly arranged in the socket housing, the socket base assembly includes an upper socket base and a lower socket base, the upper socket base is provided with an interface sealing gasket, a plurality of pins and a support spring ring, the ends of the pins pass through the interface sealing gasket and are connected to the support spring ring, one end of the lower socket base is connected to the upper socket base, the other end of the lower socket base is connected to a sealing body, and a plurality of contacts connected to the support spring ring are provided on the sealing body, a clamping ring is provided between the sealing body and the lower socket base, the interface sealing gasket is in contact with the inner wall of the socket housing through a first sealing ring, the outer wall of the socket housing is provided with a conductive rubber pad in contact with the screw sleeve, and the end of the socket housing is plug-connected to the tail accessory through a second sealing ring; The tail accessory includes a tail attachment shell, a nut and a tail nut. The nut is provided with a boss. The boss is provided so that the tail attachment shell and the nut are connected to form a first sealing groove, and a No. 2 O-ring is sleeved in the first sealing groove. A plastic wire clamp is provided in the nut, and a second sealing groove is opened on the plastic wire clamp relative to the inner wall of the nut, and a No. 3 O-ring is sleeved in the second sealing groove. The end of the plastic wire clamp is connected to a rubber sleeve, and the rubber sleeve is arranged in the tail nut.

[0007] Furthermore, 50 convex teeth are evenly distributed on the circumference of the static ratchet, and the convex teeth on the static ratchet are asymmetrically meshed with the convex teeth on the movable ratchet.

[0008] Furthermore, the steep slope surface of the static ratchet is set at an angle of 38° to the horizontal plane, and the gentle slope surface is set at an angle of 12°±10′ to the horizontal plane.

[0009] Furthermore, the steep slope surface of the movable ratchet is set at an angle of 38° to the horizontal plane, and the gentle slope surface is set at an angle of 12°±15′ to the horizontal plane.

[0010] Furthermore, the inner diameter of the No. 1 O-ring is 15 mm, and the wire diameter is 0.2±0.03 mm.

[0011] Furthermore, the inner diameter of the No. 2 O-ring is 21.5 mm, and the wire diameter is 2.5±0.05 mm.

[0012] Furthermore, the inner diameter of the No. 3 O-ring is 15.5 mm, and the wire diameter is 1.8±0.05 mm.

[0013] Furthermore, the first sealing ring has an inner diameter of 12.6 mm, an outer diameter of 18 mm, and a wire diameter of 1.6±0.04 mm.

[0014] Furthermore, the second sealing ring has an inner diameter of 14.2 mm, an outer diameter of 18.5 mm, and a wire diameter of 2 mm.

[0015] The straight sealed connector provided by the present invention has the following beneficial effects: The present invention combines the ratchet assembly with the reasonable arrangement of the sealing ring and the O-ring, so that the straight sealed connector of the present application has a stable and reliable structure, good waterproof and vibration-proof performance, and can be adapted to use in multiple environments. The present invention is highly practical and effectively solves the problem that the mechanical locking mechanism of the existing straight sealed connector is easily vibrated and fails under high-frequency vibration or impact, resulting in a decrease in connection strength, affecting its reliability in a vibration environment, and the sealing effect of the sealing ring is poor, which easily allows environmental moisture or other pollutants to enter the interior. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the straight sealed connector of the present invention.

[0017] Figure 2 It is a schematic cross-sectional structural diagram of the straight sealed connector of the present invention.

[0018] Figure 3 It is a structural schematic diagram of the straight sealed connector socket of the present invention.

[0019] Figure 4 It is a schematic cross-sectional structural diagram of the straight sealed connector socket of the present invention.

[0020] Figure 5 It is a structural schematic diagram of the straight sealed connector socket housing of the present invention.

[0021] Figure 6 It is a structural schematic diagram of the straight sealed connector plug housing of the present invention.

[0022] Figure 7 It is a structural schematic diagram of the straight sealed connector tail accessory of the present invention.

[0023] Figure 8 It is a schematic cross-sectional view of the rear accessory of the straight sealed connector of the present invention.

[0024] Figure 9 It is a structural schematic diagram of the straight sealing connector nut of the present invention.

[0025] Figure 10 It is a schematic structural diagram of the straight sealed connector plastic wire clamp of the present invention.

[0026] Figure 11 Schematic diagram of the slope of the movable ratchet of the straight sealed connector of the present invention.

[0027] Figure 12 Schematic diagram of the slope of the static ratchet of the straight sealed connector of the present invention.

[0028] Figure 13 Schematic diagram of the dynamic and static ratchets of the straight-sealed connector of the present invention.

[0029] In the figure, 1. plug part; 2. socket part; 3. tail accessory; 4. screw sleeve; 5. No. 1 O-ring; 6. shockproof chamber; 7. ratchet assembly; 71. dynamic ratchet; 72. static ratchet; 8. wave ring; 9. socket upper base; 10. socket lower base; 11. interface sealing gasket; 12. pin; 13. support spring ring; 14. sealing body; 15. contact part; 16. clamping ring; 17. first sealing ring; 18. socket housing; 19. second sealing ring; 20. tail accessory housing; 21. nut; 22. tail nut; 23. boss; 24. first sealing groove; 25. No. 2 O-ring; 26. plastic wire clamp; 27. second sealing groove; 28. No. 3 O-ring; 29. ​​rubber sleeve; 30. conductive rubber pad. DETAILED DESCRIPTION

[0030] The technical solutions of the present invention are described clearly and completely below in conjunction with specific embodiments of the present invention. The described embodiments are only a portion of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0031] Example 1 like Figure 1-13The present invention provides a straight sealed connector, which consists of a plug component 1, a socket component 2 and a tail component 3. The plug component 1 includes a plug housing and a plug base assembly arranged in the plug housing. The plug base assembly includes an upper plug base and a lower plug base. The upper plug base is provided with a plurality of sockets for plugging and connecting with the pins 12; the socket component 2 described in the present application is electrically connected to the plug component 1 through a locking member, and the locking member includes a screw sleeve 4 for connecting the plug component 1 and the socket component 2. A No. 1 O-ring 5 is provided between the screw sleeve 4 and the plug component 1. The No. 1 O-ring 5 has an inner diameter of 15 mm and a wire diameter of 0.2±0.03 mm. The end of the screw sleeve 4 is connected to the plug member 1 through the shockproof cavity 6, and a ratchet assembly 7 and a wave ring 8 for limiting the ratchet assembly 7 are provided in the shockproof cavity 6. The present application ensures the free anti-loosening performance of the ratchet assembly 7 by setting the wave ring 8, that is, the elastic force of the wave ring 8 is used to provide the pre-tightening force required for loosening, improve the torque force when the ratchet assembly 7 rotates, make the screw sleeve 4 rotate more smoothly, improve the stability of the screw sleeve 4 when rotating, and combine with the setting of the No. 1 O-ring 5 to further improve the stability between the screw sleeve 4 and the plug member 1 and the plug member 1. Regarding the sealing after connection, the ratchet assembly 7 includes a dynamic ratchet 71 in contact with the wavy ring 8 and a static ratchet 72 meshing with the dynamic ratchet 71. In this application, the ratchet assembly 7 arranged in the shockproof cavity 6 at the end of the screw sleeve 4 is combined with the wavy ring 8 to limit and lock the screw sleeve 4, thereby preventing the screw sleeve 4 from losing its locking due to environmental factors under complex conditions such as temperature and pressure, mechanical vibration, and impact environment, further improving the stability of the connection between the screw sleeve 4 and the plug component 1 and the socket component 2, so that it has reliable locking and anti-loosening functions after connection.

[0032] like Figure 3-5The socket component 2 described in the present application includes a socket shell 18 and a socket base assembly provided in the socket shell 18, and the socket base assembly includes a socket upper base 9 and a socket lower base 10, the socket upper base 9 is provided with an interface sealing gasket 11, a plurality of pins 12 and a support spring ring 13, the end of the pin 12 passes through the interface sealing gasket 11 and is connected to the support spring ring 13, one end of the socket lower base 10 is connected to the socket upper base 9, and the other end of the socket lower base 10 is connected to the sealing body 14, the sealing body 14 is provided with a plurality of contact members 15 connected to the support spring ring 13, and a clamping ring 16 is provided between the sealing body 14 and the socket lower base 10, the interface sealing gasket 11 is in contact with the inner wall of the socket shell 18 through a first sealing ring 17, and the outer wall of the socket shell 18 is provided with a conductive rubber pad 30 in contact with the screw sleeve 4, the inner diameter of the first sealing ring 17 is 12.6mm, the outer diameter is 18mm, and the wire diameter is 1.6±0.04mm. The end of the socket housing 18 is plugged into and connected to the tail accessory 3 through a second sealing ring 19, and the tail accessory 3 is fixed to the socket by screws. The inner diameter of the second sealing ring 19 is 14.2 mm, the outer diameter is 18.5 mm, and the wire diameter is 2 mm. The socket component 2 of this application can improve the watertight performance of the socket component 2 by using the interface sealing gasket 11 in combination with the first sealing ring 17.

[0033] like Figure 7-10 The tail attachment 3 described in the present application includes a tail attachment shell 20, a nut 21 and a tail nut 22. The nut 21 is provided with a boss 23. The boss 23 is provided to connect the tail attachment shell 20 and the nut 21 to form a first sealing groove 24, and a No. 2 O-ring 25 is sleeved in the first sealing groove 24. The No. 2 O-ring 25 has an inner diameter of 21.5 mm and a wire diameter of 2.5±0.05 mm. The nut 21 is provided with a plastic wire clamp 26, and a second sealing groove 27 is opened on the plastic wire clamp 26 relative to the inner wall of the nut 21, and a No. 3 O-ring 28 is sleeved in the second sealing groove 27. The inner diameter of the No. 3 O-ring 28 is 15.5mm and the wire diameter is 1.8±0.05mm; the end of the plastic wire clamp 26 is connected to a rubber sleeve 29, and the rubber sleeve 29 is arranged in the tail nut 22. The tail accessory 3 of the present application uses the No. 2 O-ring 25 in combination with the No. 3 O-ring 28 to further ensure the watertightness of the connection after it is connected to the socket component 2; the plastic wire clamp 26 of the present application is made of high-toughness plastic material, which can ensure that it will not be damaged or broken when squeezed and deformed during the assembly process, can effectively clamp the cable, and play a role in resisting pulling. The circumference of the tail end of the rubber sleeve 29 of the present application is distributed with teeth, which can make it evenly compress the rubber sleeve 29 during the tightening process of the tail accessory, so that the rubber sleeve 29 is evenly and tightly fitted with the cable sheath, further achieving reliable waterproofing.

[0034] Example 2 On the basis of the above embodiment, this embodiment is to improve the connection stability of the connector and make it have good shockproof performance, such as Figure 11-13 As described, the static ratchet 72 described in this application has 50 convex teeth evenly distributed on its circumference, and the convex teeth on the static ratchet 72 are asymmetrically meshed with the convex teeth on the dynamic ratchet 71. The mating surface parameters of the dynamic and static ratchet 72 in this application are such that the steep slope surface of the static ratchet 72 is set at an angle of 38° to the horizontal plane, and the gentle slope surface is set at an angle of 12°±10′ to the horizontal plane. The steep slope surface of the movable ratchet 71 is set at an angle of 38° to the horizontal plane, and the gentle slope surface is set at an angle of 12°±15′ to the horizontal plane. The present application provides a pre-tightening force for the movable and static ratchets 72 through the wave ring 8. The force value of the pre-tightening force is 15-20N. When the plug and the socket are plugged in, the movable ratchet 71 moves in the tightening direction. At this time, the gentle slope surface of the movable ratchet 71 moves along the gentle slope surface of the static ratchet 72. The resistance of the pre-tightening force decomposed on the gentle slope surface is small. When the tightening force is greater than the resistance, the screw sleeve 4 can be screwed to rotate with the movable ratchet 71. When the steep slope surface of the movable ratchet 71 moves to the steep slope surface of the static ratchet 72, a tightening force is generated. The movable ratchet 71 "jumps" and enters the next gentle slope surface of the static ratchet 72, and this cycle continues until it is plugged in. During this process, a crisp "click" sound is produced due to the "jump"; when the plug is separated from the socket, the movable ratchet 71 moves in the loosening direction. At this time, the steep slope surface of the movable ratchet 71 needs to cross the steep slope surface of the static ratchet 72. The resistance of the pre-tightening force decomposed on the steep slope surface is greater than the resistance decomposed on the gentle slope surface, and the force overcome is greater than when tightening. When the component force caused by the external dynamic environment such as vibration and impact is less than the resistance required to cross the steep slope surface, the screw sleeve 4 will remain in its original state and will not rotate and loosen, thereby achieving an excellent self-locking and anti-loosening function.

[0035] Based on the above embodiments, the straight sealed connector provided by this application is tested as follows according to the YMB electrical connector test outline in SYDG-231218-01, the electronic component quality assurance outline in GJB546A-1996, the electronic and electrical component test methods in GJB360B-2009, and the electrical connector test methods in GJB1217A-2009. The test sample allocation table is shown below: Table 1: Inspection sample distribution table According to the inspection sample allocation table in Table 1, the following requirements are made for the inspection items and technologies, and the inspection results are shown below; Group A, inspection item (appearance), number of samples, 4 pairs (1-4#), technical method (test according to the provisions of Article 6.3.1 of SYDG-231218-01), technical requirements (visual inspection of the appearance quality of the connector, the appearance of the electrical connector should be uniform, without damage, rust and other defects that may affect the service life and use); inspection results, in compliance with the technical requirements, single item evaluation is qualified.

[0036] Group A, inspection item (size), number of samples: 4 pairs (1-4#), technical method (test according to the provisions of Article 6.3.2 of SYDG-231218-01), technical requirements (use a vernier caliper to measure the dimensions of the electrical connector; plug dimensions 85.2±0.2, 4.6±0.1, Φ28.5±0.1, socket dimensions 34±0.2, 6.2+0.10 -0.12, 26.2±0.1 meet the requirements); inspection results: meet the technical requirements, and the single item evaluation is qualified.

[0037] Group A, inspection items (marks), number of samples: 4 pairs (1-4#), technical methods (test according to the provisions of Article 6.3.3 of SYDG-231218-01), technical requirements (visual inspection of electrical connector markings, electrical connectors should have permanent and clear markings, and product model specifications, production date or batch code should be clear); inspection results, in compliance with technical requirements, and qualified in each item.

[0038] Group A, inspection item (interchangeability), number of samples: 4 pairs (1-4#), technical method (test according to the provisions of Article 6.4.1 of SYDG-231218-01), technical requirements (whether the mechanical interface of the electrical connector meets the interchangeability requirements, the electrical connector plug and socket can be plugged in and out smoothly when arbitrarily removed, and the same electrical connectors can be completely interchangeable during installation); inspection results: met the technical requirements, and the single item evaluation was qualified.

[0039] Group A, test item (contact resistance), sample number 4 pairs (1-4#), technical method (test according to Method 3004 of GJB1217A-2009 and Clause 6.4.2 of SYDG-231218-01), technical requirement (contact resistance ≤ 15mΩ); test results, met the technical requirements, and passed the single item evaluation.

[0040] Group A, test item (insulation resistance), number of samples: 4 pairs (1-4#), technical method (test according to Method 3003 of GJB 1217A-2009 and Clause 6.4.3 of SYDG-231218-01), technical requirements (apply a DC voltage of 500V to all contacts and bases, between single and double rows of contacts, and between single and double hole positions, and conduct 100% insulation test, voltage duration ≥ 2min, insulation resistance ≥ 5000MΩ); test results: met the technical requirements, and the single item evaluation was qualified.

[0041] Group A, test item (voltage resistance), number of samples: 4 pairs (#1-4), technical method (test according to Method 3001 in GJB 1217A-2009 and Clause 6.4.4 of SYDG-231218-01), technical requirements (apply 1000V AC voltage between all adjacent contacts and to the base, with a voltage duration of ≥1min, no breakdown or arcing within the specified time, corona should not be considered, and leakage current ≤5mA); test results: met the technical requirements, and the single item evaluation was qualified.

[0042] Group B, test item (humidity), number of samples: 2 pairs (1-2#), technical method (test according to method 1002 of GJB1217-2009 and clause 6.5.3 of SYDG-231218-01, place the electrical connector in an environment of +40°C and relative air humidity up to 95% for 96 hours), technical requirements (test recovery for 1-2 hours, application of 500V DC voltage, voltage duration ≥2min, insulation resistance ≥1000MΩ); test results: met the technical requirements, and passed the single item evaluation.

[0043] Group B, test item (high temperature operation), number of samples: 2 pairs (1-2#), technical method (test according to the provisions of Article 6.5.5 of SYDG-231218-01, test temperature: 125°C; test sample is kept at temperature for 2 hours after reaching temperature stabilization (4 hours); working state: operate and test after temperature stabilization), technical requirements (interruption of electrical continuity during the test should be ≤1μs; after the test, the electrical connector should be free of breakage, looseness, deformation or part displacement, cracking, peeling, etc.; contact resistance ≤15mΩ; 500V DC voltage is applied for a voltage duration of ≥2min; insulation resistance ≥5000MΩ; 1000V AC voltage is applied between all adjacent contacts and the base for a voltage duration of ≥1min; there is no breakdown or arcing within the specified time; corona should not be considered; leakage current ≤5mA); test results: meets the technical requirements, and the single item evaluation is qualified.

[0044] Group B, inspection item (low temperature operation), number of samples: 2 pairs (1-2#), technical method (test according to the provisions of Article 6.5.4 of SYDG-231218-01, test temperature: -50°C; test sample is kept at temperature for 2 hours after reaching temperature stabilization (4 hours); working state: operate and test after temperature stabilization), technical requirements (interruption of electrical continuity during the test should be ≤1μs; after the test, the electrical connector should be free of breakage, looseness, deformation or part displacement, cracking, peeling, etc.; contact resistance ≤15mΩ; 500V DC voltage is applied for a voltage duration of ≥2min; insulation resistance ≥5000MΩ; 1000V AC voltage is applied between all adjacent contacts and the base for a voltage duration of ≥1min; there is no breakdown or arcing within the specified time; corona should not be considered; leakage current ≤5mA); inspection results: meets the technical requirements and is qualified in each item.

[0045] Group C, test item (plugging and unplugging life), number of samples: 2 pairs (3-4#), technical method (test according to Method 2016 of GJB1217-2009 and Clause 6.4.5 of SYDG-231218-01, plugging and unplugging life test for 500 times for plugs and sockets), technical requirements (contact resistance ≤ 15mΩ, 500V DC voltage applied, voltage duration ≥ 2min, insulation resistance ≥ 5000MΩ, 1000V AC voltage applied between all adjacent contacts and the base, voltage duration ≥ 1min, no breakdown or arcing within the specified time, corona should not be considered, leakage current ≤ 5mA); test results: met the technical requirements, and the single item evaluation was qualified.

[0046] Group C, test item (watertightness), number of samples: 2 pairs (#3-4), technical method (test according to clause 6.5.2 of SYDG-231218-01, place the connector (in mated state) in a watertight test chamber, add water until the connector is submerged, lock the watertight test chamber, and pressurize it until the pressure gauge shows 0.1 MPa (including 0.03 MPa pressure drop), test water depth: 3 m, test time: 2 h), technical requirements (post-test inspection: the electrical connector should be free of breakage, looseness, deformation, or part displacement, cracking, or peeling, with contact resistance ≤ 15 mΩ, a DC voltage of 500 V applied for a voltage duration of ≥ 2 min, and insulation resistance ≥ 5000 MΩ. An AC voltage of 1000 V applied between all adjacent contacts and the base for a voltage duration of ≥ 1 min, with no breakdown or arcing within the specified time, corona should not be considered, and leakage current ≤ 5 mA); test results: met the technical requirements, and the individual evaluation was qualified.

[0047] Group C, test item (vibration), number of samples: 1 pair (3#), technical method (testing in accordance with the provisions of clause 6.5.1 of SYDG-231218-01, 20-2000Hz reaching 196m / s² (20g), sinusoidal vibration for 1h in each of the three axes, a detector capable of detecting 1μs electrical discontinuity should be used during the test), technical requirements (interruption of electrical continuity during the test should be ≤1μs, post-test inspection, electrical connectors should be free of breakage, looseness, deformation or part displacement, cracking, peeling, etc., contact resistance ≤15mΩ, 500V DC voltage applied for a voltage duration of ≥2min, insulation resistance ≥5000MΩ, 1000V AC voltage applied between all adjacent contacts and the base for a voltage duration of ≥1min, no breakdown or arcing within the specified time, corona should not be considered, leakage current ≤5mA); test results: met the technical requirements, and the individual evaluation was qualified.

[0048] Group C, test item (salt spray), number of samples: 1 pair (4#), technical method (test according to Method 1001 of GJB1217-2009 and Clause 6.5.6 of SYDG-231218-01, test time: 96h), technical requirements (visual inspection: the connector should not show any base metal exposure that may have a harmful effect on performance, and the contact resistance should be ≤15mΩ); test results: met the technical requirements, and passed the single item evaluation.

[0049] The list of inspection instruments and equipment used in this application for the above inspection items is shown in Table 2. During the test, all the instruments used were within the metrological validity period; Table 2: List of inspection instruments and equipment This application conducts appearance, marking and interchangeability tests on 4 pairs (1-4#) of Group A in combination with the corresponding items under the conditions of ambient temperature / humidity of 22℃ / 58%RH. The technical requirements are: 1. The appearance of the electrical connector should be uniform and free of damage, rust and other defects that may affect the service life and use; 2. The electrical connector should have permanent and clear markings, and the product model, specifications, production date or batch code should be clear; 3. The plug and socket should be able to be plugged and unplugged smoothly, and the same electrical connector should be fully interchangeable during installation; The test records of the appearance, marking and interchangeability tests of Group A are shown in Table 3; Under the conditions of ambient temperature / humidity of 22℃ / 58%RH, the dimensional tests of 4 pairs (1-4#) of Group A were conducted in combination with the corresponding items in Table 2. According to the technical requirements, the plug dimensions of 85.2±0.2, 4.6±0.1, and Φ28.5±0.1 meet the requirements, and the socket dimensions of 34±0.2, 6.2+0.10 -0.12 meet the requirements. , 26.2±0.1 meets the requirements, and the plugs and sockets are tested. The test records of Group A dimensional test are shown in Table 4; Table 3: Test records of Group A appearance, marking, and interchangeability tests Table 4: Test records for Group A size test In this application, under the conditions of ambient temperature / humidity of 22℃ / 58%RH, a DC low resistance tester was used to conduct contact resistance tests on 4 pairs (1-4#) of Group A in combination with the corresponding items. The test conditions were to test the resistance at both ends of the contact using a DC low resistance tester, and apply a DC voltage of ≤50V; the contact resistance of Group A's contact resistance test was ≤15mΩ, and the test results were as follows: the test records of plug and socket combination 1# were 7.08-7.63mΩ, the test records of plug and socket combination 2# were 6.92-7.46mΩ, the test records of plug and socket combination 3# were 6.94-7.67mΩ, and the test records of plug and socket combination 4# were 7.09-7.62mΩ.

[0050] This application uses an insulation resistance / dielectric withstand voltage tester to test the insulation resistance / dielectric withstand voltage of the four pairs (1-4#) of group A in accordance with the corresponding project under the conditions of ambient temperature / humidity of 22℃ / 58%RH. The test results are shown in Table 5. Table 5: Test records of insulation resistance / dielectric withstand voltage of Group A This application uses a high and low temperature alternating humidity test chamber / insulation withstand voltage tester to conduct moisture / insulation resistance tests on two pairs (1-2#) of group B under the conditions of ambient temperature / humidity of 22℃ / 58%RH in combination with the corresponding project. The test results are as follows: the test record of plug 1# is 1172mΩ, and the test record of socket 2# is 1287mΩ; the test record of plug 2# is 4362mΩ, and the test record of socket 2# is 2344mΩ.

[0051] This application conducts high temperature working test on 2 pairs (1-2#) of group B in accordance with the corresponding project under the conditions of ambient temperature / humidity of 22℃ / 58%RH using a high and low temperature alternating humidity test chamber / DC low resistance tester / insulation withstand voltage tester. The test results are shown in Table 6. Table 6: Test records of Group B high temperature work This application conducts low-temperature working tests on two pairs (1-2#) of group B under the conditions of ambient temperature and humidity of 22°C and 58%RH, in combination with the corresponding project, using a high and low temperature alternating humidity test chamber, a DC low resistance tester, and an insulation withstand voltage tester. The test results are shown in Table 7. Table 7: Test records of low temperature operation of Group B This application conducts plug-in life test on two pairs (3-4#) of group C in accordance with the corresponding items under the conditions of ambient temperature and humidity of 22℃ and 58%RH using a DC low resistance tester and an insulation withstand voltage tester. After the test, the electrical connectors shall be free of breakage, looseness, deformation, etc. The test results are shown in Table 8. Table 8: Test record of plug-in life of group C This application is to conduct water tightness test on 2 pairs (3-4#) of group C in accordance with the corresponding items under the conditions of ambient temperature and humidity of 22℃ and 58%RH using a DC low resistance tester and insulation withstand voltage tester. After the test, the electrical connectors shall be free of breakage, looseness, deformation and other phenomena. The test results are shown in Table 9. Table 9: Test record of watertightness of Group C After the test, it was found that there was no water at the connecting ends of the plug and socket, no water at the No. 3 O-ring, and no water at the conductive sealing gasket of the socket.

[0052] This application conducted a vibration test on one pair (3#) of Group C under the conditions of ambient temperature and humidity of 22°C and 58%RH, using an electric vibration test system, acceleration sensor, and instantaneous interruption and instantaneous closure fault detector in conjunction with the corresponding project. The test results are shown in Table 10. Table 10: Test records of Group C vibration This application conducted a salt spray test on one pair (4#) of Group C using a precision salt spray tester / DC low resistance tester under the conditions of an ambient temperature / humidity of 22°C / 58%RH, in combination with the corresponding items in Table 2. After the test, no base metal was exposed. The test results are shown in Table 11. Table 11: Group C salt spray test records Control group 1 Based on the above embodiments, the difference between this control group and Example 1 is that the interface sealing gasket is in contact with the socket housing. After the test, it was detected that there was water mist at the mating ends of the plug and the socket. The contact resistance was tested to be 18.57-19.24 mΩ. After the signal transmission test, its stability was reduced by more than 12% compared with the signal transmission stability of the straight sealed connector provided in this application.

[0053] Control group 2 Based on the above embodiments, the difference between this control group and Example 1 is that the tail shell is threadedly connected to the nut and no No. 2 O-ring is provided; after the test, it was found that there was water mist on the conductive sealing gasket of the socket, and its contact resistance was 16.89-17.54mΩ. After the signal transmission test, its stability was reduced by more than 8% compared with the signal transmission stability of the straight sealed connector provided in this application.

[0054] Control group three Based on the above embodiments, the difference between this control group and Example 2 is that the steep slope surfaces of the dynamic and static ratchets are set at an angle greater than 38° to the horizontal plane. After the plug-in test, a vibration test was conducted, and it was found that the appearance of the plug and socket was qualified, the contact resistance of the plug and socket was 12.71-13.56mΩ, the insulation resistance of the plug was 6120mΩ, and the insulation resistance of the socket was 5980mΩ. The signal transmission smoothness was reduced by 5% compared with the signal transmission smoothness of the straight sealed connector provided in this application.

[0055] Control group 4 Based on the above embodiments, the difference between this control group and Example 2 is that the steep slope surfaces of the dynamic and static ratchets are set at an angle less than 38° to the horizontal plane. After the plug-in test, a vibration test was conducted, and the results showed that the appearance of the plug and socket were qualified, the contact resistance of the plug and socket was 10.45-11.82mΩ, the insulation resistance of the plug was 5647mΩ, and the insulation resistance of the socket was 6014mΩ. The signal transmission smoothness was reduced by 3% compared with the signal transmission smoothness of the straight sealed connector provided in this application.

[0056] In summary, the straight sealed connector provided by the present application provides positive pressure by adding an elastic gasket to the ratchet tooth end face of the ratchet assembly. The tooth design of the ratchet requires less torque when the product is connected and locked, and more torque when it is unscrewed. In addition, the large number of ratchets distributed evenly and comprehensively have a redundant function. When one tooth fails, the second tooth will play a role. Combined with the reasonable arrangement of the sealing ring and O-ring of the present application, the straight sealed connector of the present application has a stable and reliable structure and can adapt to use in multiple environments. It effectively solves the problem that the mechanical locking mechanism of the existing straight sealed connector is easily affected by vibration and fails under high-frequency vibration or impact, resulting in a decrease in connection strength, affecting its reliability in a vibration environment, and the sealing effect of the sealing ring is poor, which easily allows environmental moisture or other contaminants to enter the interior.

[0057] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0058] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A straight sealed connector, comprising a plug member (1), a socket member (2) and a tail member (3), characterized in that: The socket member (2) is electrically connected to the plug member (1) via a locking member, the locking member comprising a screw sleeve (4) for connecting the plug member (1) and the socket member (2), a No. 1 O-ring (5) being provided between the screw sleeve (4) and the plug member (1), an end of the screw sleeve (4) being connected to the plug member (1) via a shockproof cavity (6), and a ratchet assembly (7) and a wave ring (8) for limiting the position of the ratchet assembly (7) being provided in the shockproof cavity (6), the ratchet assembly (7) comprising a movable ratchet (71) in contact with the wave ring (8) and a stationary ratchet (72) meshingly connected to the movable ratchet (71); The socket component (2) comprises a socket housing (18) and a socket base assembly arranged in the socket housing (18), the socket base assembly comprising an upper socket base (9) and a lower socket base (10), the upper socket base (9) being provided with an interface sealing gasket (11), a plurality of pins (12) and a support spring ring (13), the end of the pin (12) passing through the interface sealing gasket (11) and connected to the support spring ring (13), one end of the lower socket base (10) being connected to the upper socket base (9), and the other end of the lower socket base (10) being connected to the upper socket base (9). A sealing body (14) is provided, and a plurality of contact members (15) connected to the support spring ring (13) are provided on the sealing body (14); a clamping ring (16) is provided between the sealing body (14) and the lower base (10) of the socket; the interface sealing gasket (11) is in contact with the inner wall of the socket housing (18) through a first sealing ring (17); the outer wall of the socket housing (18) is provided with a conductive rubber gasket (30) in contact with the screw sleeve (4); and the end of the socket housing (18) is plug-connected to the tail accessory (3) through a second sealing ring (19); The tail attachment (3) comprises a tail attachment housing (20), a nut (21) and a tail nut (22), wherein the nut (21) is provided with a boss (23), and the boss (23) is arranged so that the tail attachment housing (20) and the nut (21) are connected to form a first sealing groove (24), and a second O-ring (25) is sleeved in the first sealing groove (24), and a plastic wire clamp (26) is arranged in the nut (21), and a second sealing groove (27) is formed on the plastic wire clamp (26) relative to the inner wall of the nut (21), and a third O-ring (28) is sleeved in the second sealing groove (27), and a rubber sleeve (29) is connected to the end of the plastic wire clamp (26), and the rubber sleeve (29) is arranged in the tail nut (22).

2. The straight sealed connector according to claim 1, characterized in that: The static ratchet (72) has 50 convex teeth evenly distributed on its circumference, and the convex teeth on the static ratchet (72) are in asymmetrical meshing connection with the convex teeth on the movable ratchet (71).

3. The straight sealed connector according to claim 2, characterized in that: The steep slope surface of the static ratchet (72) is arranged at an angle of 38° to the horizontal plane, and the gentle slope surface is arranged at an angle of 12°±10′ to the horizontal plane.

4. The straight sealed connector according to claim 2, characterized in that: The steep slope surface of the movable ratchet (71) is arranged at an angle of 38° to the horizontal plane, and the gentle slope surface is arranged at an angle of 12°±15′ to the horizontal plane.

5. The straight sealed connector according to claim 1, characterized in that: The No. 1 O-ring (5) has an inner diameter of 15 mm and a wire diameter of 0.2±0.03 mm.

6. The straight sealed connector according to claim 1, characterized in that: The second O-ring (25) has an inner diameter of 21.5 mm and a wire diameter of 2.5±0.05 mm.

7. The straight sealed connector according to claim 1, characterized in that: The No. 3 O-ring (28) has an inner diameter of 15.5 mm and a wire diameter of 1.8±0.05 mm.

8. The straight sealed connector according to claim 1, characterized in that: The first sealing ring (17) has an inner diameter of 12.6 mm, an outer diameter of 18 mm, and a wire diameter of 1.6±0.04 mm.

9. The straight sealed connector according to claim 1, characterized in that: The second sealing ring (19) has an inner diameter of 14.2 mm, an outer diameter of 18.5 mm, and a wire diameter of 2 mm.

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