Socket connector, plug connector and high-voltage connector assembly

Abstract

The utility model relates to a socket connector, a plug connector and a high voltage connector assembly, the socket connector comprises a socket housing and a socket sealing structure arranged in the socket housing, the socket sealing structure comprises a socket insulator, a socket wire sealing body and a first positioner, the socket insulator is internally provided with a socket contact member, and the socket contact member is internally provided with a second positioner. The first positioner is sleeved at the tail part of the socket contact piece, the socket wire sealing body is embedded in a first mounting cavity formed in the inner wall of the rear end of the socket insulator, and the socket wire sealing body, the socket insulator and the first positioner are in extrusion sealing. The plug connector comprises a plug shell and a plug sealing structure arranged in the plug shell, and the plug sealing structure is the same as the socket sealing structure. The socket insulator and the plug insulator are integrally formed, a pressing plate structure is omitted, bonding lines between the insulators and the pressing plate are eliminated, air gaps do not exist, and the high-pressure resistance of the socket connector and the plug connector in a low-pressure environment is improved through the socket sealing structure and the plug sealing structure respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, and is particularly suitable for connectors in aviation or low-pressure environments, in particular to a socket connector, a plug connector and a high-voltage connector assembly. Background Art

[0002] High voltage resistant connectors are widely used in aerospace, aviation, nuclear energy and other fields. Existing connectors usually use a pressure plate and an insulator to snap or bond the contact piece, the sealing body and the pressure plate to bond, and the sealing body and the metal shell to seal by bonding or extrusion, which results in a joint surface between the insulator and the pressure plate, and between the sealing body and the pressure plate. When the bonding is not firm, there is an air gap between the bonding surfaces between the insulator and the pressure plate, and between the sealing body and the pressure plate. In high altitude or low pressure environments, the air is thin, and electrical breakdown is very likely to occur between the contacts and between the contacts and the shell due to the air gap between the contact surfaces, causing the connector to fail in voltage resistance, burn out, and be unable to withstand high voltage. Summary of the invention

[0003] In order to overcome the defects of the prior art, the utility model provides a socket connector, a plug connector and a high-voltage connector assembly. The socket insulator and the plug insulator are all integrally formed, and the pressure plate structure is cancelled, thereby eliminating the bonding line between the insulator and the pressure plate in the prior art, and there is no air gap, thereby improving the voltage resistance performance of the connector in a low-pressure environment.

[0004] The utility model is specifically realized by the following technical scheme: a socket connector proposed by the utility model includes a socket housing and a socket connector sealing structure arranged in the socket housing, the socket connector sealing structure includes a socket insulator, a socket wire sealing body and a first positioner, the socket insulator is integrated and fixed in the socket housing, a socket contact is arranged in the socket insulator, the first positioner is sleeved on the tail of the socket contact, the socket wire sealing body is embedded in a first installation cavity opened on the inner wall of the rear end of the socket insulator, and the outer wall of the socket wire sealing body is squeezed and sealed with the inner wall of the first installation cavity, and the inner wall of the socket wire sealing body is squeezed and sealed with the outer wall of the first positioner. The above structure improves the sealing performance and high pressure resistance performance of the socket connector.

[0005] The aforementioned socket connector has a first card slot provided in the socket insulator, a first positioning claw installed in the first card slot, the first positioning claw is an open ring, and has a plurality of claws evenly distributed circumferentially and bent inwardly of the circumference of the first positioning claw; a first boss is provided on the socket contact piece, and after the socket contact piece is assembled in place, the first boss is clamped between the claw of the first positioning claw and the limiting step I in the socket insulator, thereby realizing axial limiting of the socket contact piece.

[0006] In the aforementioned socket connector, the rear end of the first positioner is sleeved with a first positioner wire sealing body, and the first positioner wire sealing body is used for extrusion sealing of the socket tail cable connected to the rear end of the socket contact.

[0007] Furthermore, the socket insulator is fixed in the socket housing by gluing, the socket wire sealing body is fixed in the first installation cavity of the socket insulator by gluing, and the first positioner and the first positioner wire sealing body are bonded and sealed.

[0008] In the aforementioned socket connector, a rubber ring is also installed in the gap between the front end of the socket insulator and the socket shell, and the rubber ring can be used to achieve sealing between the plug and the socket after the header is plugged in.

[0009] The utility model also provides a plug connector, which includes a plug housing and a plug connector sealing structure arranged in the plug housing, the plug connector sealing structure includes a plug insulator, a plug wire sealing body and a second positioner, the plug insulator is integrated and fixed in the plug housing, a plug contact is arranged in the plug insulator, the second positioner is sleeved on the tail of the plug contact, the plug wire sealing body is embedded in a second installation cavity opened on the inner wall of the rear end of the plug insulator, and the outer wall of the plug wire sealing body is squeezed and sealed with the inner wall of the second installation cavity, and the inner wall of the plug wire sealing body is squeezed and sealed with the outer wall of the second positioner. The above structure improves the sealing performance and high pressure resistance performance of the plug connector.

[0010] The aforementioned plug connector has a second slot in the plug insulator for installing a second positioning claw, the second positioning claw is an open ring, and has a plurality of claws evenly distributed in the circumference thereof and bent inwardly of the circumference of the second positioning claw; a second boss is provided on the plug contact piece, and after the plug contact piece is assembled in place, the second boss is clamped between the claw of the second positioning claw and the limiting step II in the plug insulator, thereby realizing axial limiting of the plug contact piece.

[0011] In the aforementioned plug connector, the rear end of the second positioner is sleeved with a second positioner wire sealing body, and the second positioner wire sealing body is used for extrusion sealing of the plug tail cable connected to the rear end of the plug contact.

[0012] Furthermore, the plug insulator is fixed in the plug housing by gluing, the plug wire sealing body is fixed in the second installation cavity of the plug insulator by gluing, and the second positioner is bonded and sealed to the second positioner wire sealing body.

[0013] In the aforementioned plug connector, the front end of the plug insulator is provided with an interface seal, through which the header is used to seal the socket contacts and the plug contacts after insertion.

[0014] Furthermore, the interface seal is provided with a plurality of through holes for the plug contacts to pass through, and a side of the interface seal used to form a seal with the socket insulator is defined as a sealing surface, and a boss structure is provided around the through holes on one side of the sealing surface. After the head seats are plugged in, the plug insulator and the socket insulator squeeze the interface seal against each other; a plurality of protrusions are provided on the other side of the interface seal, and a groove is provided on the plug insulator mating surface, and the protrusion is assembled in the groove.

[0015] The utility model also provides a high-voltage connector assembly, which comprises a plug connector and a socket connector. The socket connector is the socket connector as described above, and the plug connector is the plug connector as described above.

[0016] Compared with the prior art, the utility model has obvious advantages and beneficial effects. By means of the above technical solution, the utility model can achieve considerable technical progress and practicality, and has a wide range of utilization value, and has at least the following advantages:

[0017] (1) The socket insulator and the plug insulator of the utility model are both integrally formed, eliminating the pressure plate structure, thereby eliminating the bonding line between the insulator and the pressure plate in the prior art, and eliminating the air gap, thereby improving the voltage resistance performance of the connector in a low-pressure environment. The socket sealing body is bonded to the socket insulator, increasing the electrical distance between the socket contact and the socket shell. At the same time, the socket sealing body and the socket insulator are squeezed and sealed to block the air passage, further blocking the air passage between the socket contact and the socket shell, thereby improving the high-voltage resistance performance of the socket connector. Similarly, the plug sealing body is bonded to the plug insulator, increasing the electrical distance between the plug contact and the plug shell. At the same time, the plug sealing body and the plug insulator are squeezed and sealed to block the air passage between the plug contact and the plug shell, thereby improving the high-voltage resistance performance of the plug connector.

[0018] (2) The socket contact is fixed in the socket insulator by the first positioning claw, and the pin contact is fixed in the plug insulator by the second positioning claw. At the same time, the tail of the socket contact is positioned by the first positioner, and the tail of the pin contact is positioned by the second positioner, which reduces the deflection of the tail of the contact and improves the reliability of the connector. The first positioner can also increase the electrical distance between adjacent socket contacts and improve the voltage resistance performance of the socket connector. Similarly, the second positioner increases the electrical distance between adjacent pin contacts and improves the voltage resistance performance of the plug.

[0019] (3) The first positioner and the first positioner sealing body are bonded and sealed, and the second positioner and the second positioner sealing body are bonded and sealed. At the same time, the first positioner sealing body and the rear cable of the socket are squeezed and sealed, and the second positioner sealing body and the rear cable of the plug are squeezed and sealed. The above structure realizes moisture-proof at the rear of the connector and improves the high-voltage safety of the connector.

[0020] (4) After the head seat is plugged in, the interface seal is used to achieve sealing between adjacent contacts and between the contacts and the metal shell, blocking the air passage between the socket contact and the socket shell and between adjacent jacks, and blocking the air passage between the plug contact and the plug shell and between adjacent pins. The socket shell and the plug shell are further sealed by a rubber ring. The above sealing structures are combined to ensure the moisture-proof and sealing performance of the circular high-voltage connector, and improve the high-pressure resistance of the circular high-voltage connector in a low-pressure environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of a socket connector and a plug connector.

[0022] Figure 2 It is a schematic diagram of the socket connector and the plug connector being inserted into place.

[0023] Figure 3 (a) is a three-dimensional schematic diagram of the interface seal, and (b) is a side view of the interface seal.

[0024] Figure 4 Schematic diagram of the structure of the first positioning claw.

[0025]

Components and symbols

[0026] 1-socket housing;

[0027] 2-Socket insulator;

[0028] 3- socket contacts;

[0029] 4- first positioning claw;

[0030] 5- first locator;

[0031] 6- the first locator sealing body;

[0032] 7- socket sealing body;

[0033] 8- Rubber ring;

[0034] 9-claw;

[0035] 10- first boss;

[0036] 11-Limiting step Ⅰ;

[0037] 12-plug housing;

[0038] 13-plug insulator;

[0039] 14-plug contact;

[0040] 15- second positioning claw;

[0041] 16- second locator;

[0042] 17-Second locator sealing body;

[0043] 18-plug sealing body;

[0044] 19-interface seal;

[0045] 20- second boss;

[0046] 21-Limiting step II;

[0047] 22-through hole;

[0048] 23- boss structure;

[0049] 24-convex;

[0050] 25-Connecting nut. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with specific embodiments and drawings. Obviously, the described features are only part of the embodiments of the utility model, not all embodiments. Therefore, the following detailed description of the utility model provided in the drawings is not intended to limit the scope of protection claimed, but merely represents the selected embodiments of the utility model. Based on the embodiments described below of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0052] In the following embodiments, the “front end” refers to the plug-in end of a socket or a plug, and the “tail end” refers to the end where the socket or the plug is connected to a cable.

[0053] Embodiment of a high voltage connector assembly:

[0054] The utility model provides a circular high-voltage connector assembly comprising a plug connector and a socket connector, such as Figure 1As shown, the socket connector socket housing 1 and the socket connector sealing structure arranged in the socket housing, the socket connector sealing structure includes a socket insulator 2, a first positioner 5, a first positioner sealing body 6, and a socket sealing body 7. The socket insulator is an integrated insulator, which is fixed in the socket housing by gluing and limited by the first step in the socket housing. A first card slot is arranged in the socket insulator, and a first positioning claw 4 is installed in the first card slot. The first positioning claw structure is as shown in FIG. Figure 4 As shown, it is an open ring. When installed, the opening shrinks and is installed in the first slot. The first positioning claw is evenly distributed with a plurality of elastic claws 9 that are bent inwardly toward the circumference of the first positioning claw. The socket contact 3 is installed into the socket insulator from the tail of the socket, and a first boss 10 is provided on the socket contact. After the socket contact is assembled in place, the first boss is clamped between the claw of the first positioning claw and the limiting step Ⅰ11 in the socket insulator to achieve axial limiting of the socket contact. A first positioner is also installed at the tail of the first positioning claw. The tail of the socket contact is sleeved in the first positioner. The socket contact can be positioned by the first positioner to reduce the deflection of the socket contact and improve the reliability of the connector. The rear end of the first positioner is sleeved with a first positioner sealing body 6, and the first positioner is bonded and sealed with the first positioner sealing body. The cable at the tail of the socket is crimped to the tail of the socket contact, and the cable at the tail of the socket is squeezed and sealed with the first positioner sealing body, thereby realizing the moisture-proof and sealing functions of the tail of the socket connector and improving the high-voltage safety of the connector. A socket sealing body is also provided between the tail of the socket insulator and the first positioner, and the socket sealing body is embedded in the first installation cavity opened on the inner wall of the rear end of the socket insulator. The outer wall of the socket sealing body is squeezed and sealed with the inner wall of the first installation cavity, and the inner wall of the socket sealing body is squeezed and sealed with the outer wall of the first positioner, which can block the air passage between the socket contact and the metal socket shell, increase the electrical distance between the socket contact and the metal socket shell, and improve the voltage resistance performance of the socket connector.

[0055] In one embodiment, the socket wire sealing body is fixed in the first mounting cavity of the socket insulator by gluing.

[0056] A gap is provided between the front end of the socket insulator and the socket shell for the header to be inserted into the plug shell when plugging together, and a rubber ring 8 is also installed in the gap between the front end of the socket insulator and the socket shell to achieve sealing between the plug and the socket after the header is plugged together.

[0057] The plug connector includes a plug housing 12 and a plug connector sealing structure disposed in the plug housing. The plug connector sealing structure includes a plug insulator 13, a second positioner 16, a second positioner sealing body 17, and a plug sealing body 18. The plug insulator is an integrated insulator, which is fixed in the plug housing by gluing and limited by a second step in the plug housing. A second card slot is disposed in the plug insulator, and a second positioning claw 15 is installed in the second card slot. The second positioning claw structure is the same as the first positioning claw structure, such as Figure 4 As shown, no further description is given. The plug contact 14 is installed into the plug insulator from the tail of the plug, and a second boss 20 is provided on the plug contact. After the plug contact is assembled in place, the second boss on the plug contact is clamped between the claw of the second positioning claw and the limiting step II 21 in the plug insulator to achieve axial limiting of the plug contact. The second positioner is provided at the tail of the second positioning claw, and the tail of the plug contact is sleeved in the second positioner. The plug contact is positioned by the second positioner, thereby reducing the deflection of the plug contact and improving the reliability of the connector. The rear end of the second positioner is sleeved with a second positioner sealing body, and the second positioner is bonded and sealed with the second positioner sealing body. The cable at the tail of the plug is crimped to the tail of the plug contact, and the cable at the tail of the plug is squeezed and sealed with the second positioner sealing body, thereby achieving moisture-proof and sealing functions at the tail of the plug connector and improving the high-voltage safety of the plug connector. A plug sealing body is also provided between the tail of the plug insulator and the second positioner, and the plug sealing body is embedded in the second installation cavity opened in the inner wall of the rear end of the plug insulator. The outer wall of the plug sealing body is squeezed and sealed with the inner wall of the second installation cavity, and the inner wall of the plug sealing body is squeezed and sealed with the outer wall of the second positioner, which can block the air channel between the plug contact and the metal plug shell, increase the electrical distance between the plug contact and the metal plug shell, and thus improve the voltage resistance performance of the plug connector.

[0058] In one embodiment, the plug sealing body is fixed in the second mounting cavity of the plug insulator by gluing.

[0059] In one embodiment, the socket contact is a jack contact, and the plug contact is a pin contact, but this description should not be regarded as a limitation to the present invention.

[0060] The front end of the plug insulator is provided with an interface seal 19, through which the head base is sealed against the socket contacts and the plug contacts after insertion. The structure of the interface seal is as follows: Figure 3As shown, the interface seal is provided with a plurality of through holes 22 for the pins to pass through, and the side of the interface seal used to form a seal with the socket insulator is defined as the sealing surface. The through holes on one side of the sealing surface are surrounded by a boss structure 23, which corresponds to the plug hole of the socket insulator. After the head seat is plugged in, the plug insulator and the socket insulator mutually squeeze the interface seal, and the boss structure forms a seal between the socket contact in the socket insulator and the plug contact in the plug insulator, meeting the moisture-proof and sealing performance. The other side of the interface seal is provided with a plurality of protrusions 24, and the plug insulator is provided with a groove on the mating surface, and the protrusion is assembled in the groove to complete the installation of the interface seal.

[0061] Furthermore, a connecting nut 25 is also installed outside the plug housing. After the plug and the socket are plugged in, the plug contact and the socket contact are plugged in, the plug housing is inserted into the gap between the socket housing and the socket insulator and abuts against the rubber ring in the socket, the socket housing is inserted into the gap between the plug housing and the connecting nut and is screwed with the connecting nut. After the screws are screwed in, the plug insulator and the socket insulator mutually squeeze the interface seal, so that a seal is formed between the socket contact and the adjacent socket contact, between the plug contact and the adjacent plug contact, and between the socket contact and the plug contact and the metal housing, so as to meet the sealing and moisture-proof performance. The plug housing and the socket housing are sealed by the rubber ring. In the socket, the first positioner sealing body is used to form a seal between the cable at the tail of the socket and the socket, so as to realize the moisture-proof and sealing functions of the tail of the socket connector, and improve the high-pressure resistance of the socket connector in a low-pressure environment. The socket sealing body is used to seal the socket contact with the socket insulator and the metal housing of the socket, blocking the air passage between the socket contact and the metal socket housing, and improving the high-pressure resistance of the socket connector in a low-pressure environment. Similarly, in the plug, the second positioner sealing body forms a seal between the cable at the end of the plug and the plug, thereby achieving moisture-proofing of the end of the plug connector and improving the high-voltage resistance of the plug connector in a low-pressure environment. The plug sealing body seals the plug contact with the plug insulator and the metal shell of the plug, blocks the air passage between the plug contact and the metal plug shell, and improves the high-voltage resistance of the plug connector in a low-pressure environment.

[0062] Embodiment of the socket connector:

[0063] The socket connector in this embodiment is the socket connector described in the above-mentioned high-voltage connector assembly, which will not be described in detail here.

[0064] Embodiment of plug connector:

[0065] The plug connector in this embodiment is the socket connector described in the above-mentioned high-voltage connector assembly, which will not be described in detail here.

[0066] The above is only an embodiment of the utility model, and does not limit the utility model in any form. The utility model can also have other forms of embodiments according to the above structure and function, which are not listed one by one. Therefore, any simple modification, equivalent change and modification made by any technician familiar with the profession to the above embodiment according to the technical essence of the utility model without departing from the scope of the technical solution of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. A socket connector, comprising a socket housing (1) and a socket connector sealing structure arranged in the socket housing, characterized in that: The socket connector sealing structure comprises a socket insulator (2), a socket sealing body (7) and a first positioner (5), wherein the socket insulator is integral and fixed in the socket housing, a socket contact piece (3) is arranged in the socket insulator, the first positioner is sleeved on the tail of the socket contact piece, the socket sealing body is embedded in a first installation cavity opened on the inner wall at the rear end of the socket insulator, and the outer wall of the socket sealing body is squeezed and sealed with the inner wall of the first installation cavity, and the inner wall of the socket sealing body is squeezed and sealed with the outer wall of the first positioner.

2. The socket connector according to claim 1, characterized in that A first clamping groove is provided in the socket insulator, a first positioning claw (4) is installed in the first clamping groove, the first positioning claw is an open ring, and a plurality of clamping claws (9) are evenly distributed in the circumference and bent inwardly of the circumference of the first positioning claw; a first boss (10) is provided on the socket contact piece, and after the socket contact piece is assembled in place, the first boss is clamped between the clamping claw of the first positioning claw and the limiting step I (11) in the socket insulator, so as to realize the axial limiting of the socket contact piece.

3. The socket connector according to claim 1, characterized in that A first positioner wire sealing body (6) is sleeved on the rear end of the first positioner, and the first positioner wire sealing body is used for extruding and sealing the rear cable of the socket connected to the rear end of the socket contact piece.

4. The socket connector according to claim 3, characterized in that The socket insulator is fixed in the socket housing by gluing, the socket wire sealing body is fixed in the first installation cavity of the socket insulator by gluing, and the first positioner is bonded and sealed to the first positioner wire sealing body.

5. The socket connector according to claim 1, characterized in that A rubber ring (8) is installed in the gap between the front end of the socket insulator and the socket housing, and the sealing of the plug and the socket is achieved through the rubber ring after the head seat is plugged into each other.

6. A plug connector, comprising a plug housing (12) and a plug connector sealing structure arranged in the plug housing, characterized in that: The plug connector sealing structure comprises a plug insulator (13), a plug sealing body (18) and a second positioner (16), wherein the plug insulator is integral and fixed in the plug housing, a plug contact is arranged in the plug insulator, the second positioner is sleeved on the tail of the plug contact, the plug sealing body is embedded in a second installation cavity opened on the inner wall at the rear end of the plug insulator, and the outer wall of the plug sealing body is squeezed and sealed with the inner wall of the second installation cavity, and the inner wall of the plug sealing body is squeezed and sealed with the outer wall of the second positioner.

7. The plug connector according to claim 6, characterized in that A second slot is provided in the plug insulator for mounting a second positioning claw (15); the second positioning claw is in the shape of an open ring and has a plurality of claws evenly distributed in the circumference thereof and bent inwardly of the circumference of the second positioning claw; a second boss (20) is provided on the plug contact piece; after the plug contact piece is assembled in place, the second boss is clamped between the claw of the second positioning claw and a limiting step II (21) in the plug insulator, thereby realizing axial limiting of the plug contact piece.

8. The plug connector according to claim 6, characterized in that A second positioner wire sealing body (17) is sleeved on the rear end of the second positioner, and the second positioner wire sealing body is used for extrusion sealing of the plug tail cable connected to the rear end of the plug contact piece.

9. The plug connector according to claim 8, characterized in that The plug insulator is fixed in the plug housing by gluing, the plug wire sealing body is fixed in the second installation cavity of the plug insulator by gluing, and the second positioner is bonded and sealed to the second positioner wire sealing body.

10. The plug connector according to claim 6, characterized in that An interface seal (19) is provided at the front end of the plug insulator.

11. The plug connector according to claim 10, characterized in that The interface seal is provided with a plurality of through holes (22) for the plug contacts to pass through, and the side of the interface seal used to form a seal with the socket insulator is defined as a sealing surface, and a boss structure (23) is provided around the through holes on one side of the sealing surface; a plurality of protrusions (24) are provided on the other side of the interface seal, and a groove is provided on the plug insulator mating surface, and the protrusion is assembled in the groove.

12. A high voltage connector assembly, comprising a plug connector and a socket connector, characterized in that: The socket connector is the socket connector described in any one of claims 1 to 5, and the plug connector is the plug connector described in any one of claims 6 to 11.

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