Bayonet type differential connector

Abstract

The invention relates to the technical field of differential signal transmission, and discloses a bayonet type differential connector, a blind plugging floating butt joint mechanism adopts a split structure, a plug comprises a plug shell and an outer shell, the outer shell is of a cylindrical structure, the outer shell is coaxially arranged at the plugging end of the plug shell, and the plug shell is connected with the outer shell through a bolt. The length of the outer shell extends to the outer wall of a socket shell inserted into the plug, an L-shaped bayonet groove is formed in the inner wall of the outer shell, and a limiting pin matched with the L-shaped bayonet groove is arranged on the outer wall of the socket shell. The L-shaped bayonet grooves in the shell sleeve are matched with the limiting pins on the socket shell, when the socket is inserted into a plug, the plug end shell is rotated to enable the limiting pins on the socket shell to be matched with the L-shaped bayonet grooves of the shell to achieve locking and prevent loosening, certain vibration resistance, impact resistance and tension resistance are achieved, and the safety of the socket is improved. And the device has the advantages of reliable use, convenient operation, small size, light weight and the like.

Description

Technical Field

[0001] The invention relates to the technical field of differential signal transmission and discloses a bayonet type differential connector. Background Art

[0002] In recent years, differential connectors have been widely used in various types of airborne equipment. Many verification tests need to be carried out during the development stage of the equipment. The ground test harness system has complex cross-linking, and short-circuiting, interruption, flying wires, and transfer operations are often required to achieve special debugging or troubleshooting. Currently, four coaxial contacts are mostly used to achieve the above operations, but the four coaxial contacts do not have a locking function. After the contacts are plugged in, once the cable harness is stressed, it is very easy to loosen, resulting in signal interruption. In addition, the four coaxial contacts do not have an anti-wrong insertion function, which can easily cause signal transmission abnormalities. When there are many lines, it is not easy to troubleshoot. Summary of the invention

[0003] The object of the present invention is to provide a bayonet type differential connector, which can prevent loosening, has certain vibration resistance, impact resistance and tensile resistance, and has the advantages of reliable use, convenient operation, small size and light weight.

[0004] In order to achieve the above technical effects, the technical solution adopted by the present invention is:

[0005] A bayonet differential connector includes a plug and a socket;

[0006] The plug comprises a plug housing, a plug insulator assembly is fixedly installed in the plug housing, and an inner plug hole is arranged in the plug insulator assembly;

[0007] The socket comprises a socket housing, a pin insulator assembly is fixedly installed in the socket housing, and an inner pin which can be inserted into the inner plug hole is fixed in the pin insulator assembly;

[0008] It also includes an outer shell, which is a cylindrical structure. The outer shell is coaxially arranged at the plug-in end of the plug shell. The length of the outer shell extends to the outer wall of the socket shell plugged on the plug. The inner wall of the outer shell is provided with an L-shaped bayonet groove, and the outer wall of the socket shell is provided with a limit pin that cooperates with the L-shaped bayonet groove.

[0009] Furthermore, the plug housing is provided with a keyway, and the socket housing is provided with a convex key that matches the keyway.

[0010] Furthermore, the tail outlet end of the plug housing and the tail outlet end of the socket housing are respectively provided with a crimping ring, and the tail outlet end of the plug housing and the tail outlet end of the socket housing are also provided with a wire protection sleeve, and the inner wall of the wire protection sleeve is provided with an inner convex ring that can be inserted into the crimping ring.

[0011] Furthermore, a corrugated spring abutting against the outer shell is also arranged in the plug shell.

[0012] Furthermore, the plug insulator assembly comprises a coaxially arranged front hole insulator and a rear hole insulator, the inner plug hole is fixed on the rear hole insulator, and the front hole insulator is provided with a mounting hole for the inner plug hole to pass through.

[0013] Furthermore, the pin insulator assembly comprises a coaxially arranged front pin insulator and a rear pin insulator, the inner pin is fixed on the rear pin insulator, and the front pin insulator is provided with a mounting hole for the inner pin to pass through.

[0014] Furthermore, the inner plug hole in the plug and the inner plug pin in the socket are terminated with the corresponding cables respectively by crimping or welding.

[0015] Furthermore, the outer walls of the pin insulator assembly and the plug insulator assembly are provided with anti-rotation keys, and the inner walls of the socket housing and the plug housing are provided with grooves that cooperate with the anti-rotation keys.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention utilizes the L-shaped bayonet groove on the outer shell to cooperate with the limit pin on the socket shell. When the socket and the plug are plugged in, the outer shell at the plug end is rotated to make the limit pin on the socket shell cooperate with the L-shaped bayonet groove of the outer shell to achieve locking and prevent loosening. It has a certain ability to resist vibration, impact and tension, and has the advantages of reliable use, convenient operation, small size and light weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the structure of the plug in the embodiment;

[0018] Figure 2 It is a schematic diagram of the structure of the socket in the embodiment;

[0019] Figure 3 Schematic diagram of the structure of the bayonet-type differential connector in the embodiment;

[0020] Figure 4 Schematic diagram of the positional relationship between the keyway and the convex key in the embodiment;

[0021] Figure 5 It is a schematic diagram of the assembly between the crimping ring and the wire protection sleeve in the embodiment;

[0022] Among them, 1. plug housing; 2. plug insulator assembly; 3. inner socket; 4. socket housing; 5. pin insulator assembly; 6. inner pin; 7. outer housing; 8. L-shaped bayonet groove; 9. limit pin; 10. keyway; 11. convex key; 12. crimping ring; 13. wire sheath; 14. inner convex ring. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the embodiments and drawings. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0024] Example

[0025] See also Figure 1-Figure 5 , a bayonet-type differential connector, including a plug and a socket;

[0026] The plug comprises a plug housing 1, a plug insulator assembly 2 is fixedly installed in the plug housing 1, and an inner plug hole 3 is arranged in the plug insulator assembly 2;

[0027] The socket comprises a socket housing 4, in which a pin insulator assembly 5 is fixedly installed, and in which an inner pin 6 which can be inserted into the inner plug hole 3 is fixed;

[0028] It also includes an outer shell 7, which is a cylindrical structure. The outer shell 7 is coaxially arranged on the plug-in end of the plug shell 1. The length of the outer shell 7 extends to the outer wall of the socket shell 4 plugged on the plug. The inner wall of the outer shell 7 is provided with an L-shaped bayonet groove 8, and the outer wall of the socket shell 4 is provided with a limit pin 9 that cooperates with the L-shaped bayonet groove 8.

[0029] In this embodiment, the L-shaped bayonet groove 8 on the outer shell is matched with the limit pin 9 on the socket shell 4. When the socket and the plug are inserted into each other, the outer shell 7 at the plug end is rotated so that the limit pin 9 on the socket shell 4 cooperates with the L-shaped bayonet groove 8 of the outer shell 7 to achieve locking and prevent loosening. It has a certain ability to resist vibration, impact and tension, and has the advantages of reliable use, convenient operation, small size and light weight.

[0030] In this embodiment, a key slot 10 is provided on the plug housing 1, and a convex key 11 cooperating with the key slot 10 is provided on the socket housing 4. Only when the convex key 11 is correctly matched with the key slot 10 can the plug and the socket be smoothly plugged into place, which has the function of preventing wrong insertion.

[0031] In this embodiment, the tail outlet end of the plug housing 1 and the tail outlet end of the socket housing 4 are respectively provided with a crimping ring 12, and the tail outlet end of the plug housing 1 and the tail outlet end of the socket housing 4 are also provided with a wire protection sleeve 13, and the inner wall of the wire protection sleeve 13 is provided with an inner convex ring 14 that can be inserted into the crimping ring, and the wire protection sleeve 13 is fixedly installed on the tail outlet end of the plug housing 1 or the tail outlet end of the socket housing 4 by matching the inner convex ring 14 with the crimping ring 12. The wire protection sleeve 13 in this embodiment adopts a cylindrical body structure with a cone structure. When in use, the large diameter end of the wire protection sleeve 13 is aligned with the tail outlet end of the socket housing 4 or the plug housing 1, and is pushed toward the mating surface of the plug or the socket with force until the inner convex ring 14 at the large diameter end of the wire protection sleeve 13 is inserted into the crimping ring 12. At this time, the wire protection sleeve 13 is fixed to the socket housing 4 or the plug housing 1, so as to protect the cable at the outlet end and prevent excessive bending.

[0032] In this embodiment, a corrugated spring is further provided in the plug housing 1 to abut against the outer housing 7. The provision of the corrugated spring can ensure that the plug and the socket have a certain elasticity and pressure when connected, thereby ensuring the stability and reliability of the connection. In addition, the design of the corrugated spring can also absorb certain vibrations and impacts, thereby extending the service life of the connector.

[0033] In this embodiment, the plug insulator assembly 2 includes a coaxially arranged front-hole insulator and a rear-hole insulator, the inner plug hole 3 is fixed on the rear-hole insulator, and the front-hole insulator is provided with a mounting hole for the inner plug hole 3 to pass through, so as to realize the rapid assembly of the inner plug hole 3. In the specific assembly process, after the inner plug hole 3 is assembled with the cable core, the inner plug hole 3 is installed on the rear-hole insulator, and then combined with the front-hole insulator, and the whole is sent into the plug housing 1. An anti-rotation key can be provided on the outer wall of the front-hole insulator, which cooperates with the corresponding groove of the socket housing 4 to prevent rotation.

[0034] In this embodiment, the pin insulator assembly 5 includes a coaxially arranged front pin insulator and a rear pin insulator, the inner pin 6 is fixed on the rear pin insulator, and the front pin insulator is provided with a mounting hole for the inner pin 6 to pass through. In the specific assembly process, after the inner pin 6 is assembled with the cable core, the inner pin 6 is installed on the rear pin insulator, and then combined with the front pin insulator, and the whole is sent into the socket housing 4. The front pin insulator can also be provided with an anti-rotation key to cooperate with the groove of the socket housing 4 to prevent rotation.

[0035] In this embodiment, the inner jack 3 in the plug and the inner pin 6 in the socket are terminated with the corresponding cables by crimping or welding. The processing materials of the outer shell 7, corrugated spring, plug shell 1, inner jack 3, inner jack 3, crimping ring 12, and inner pin 6 include but are not limited to metal materials such as gold, silver, copper and copper alloys, iron, aluminum and aluminum alloys, steel, stainless steel, titanium and titanium alloys, and the surface plating materials include but are not limited to metal or non-metal materials such as gold, silver, copper, tin, tin-copper, silicon copper, nickel, cadmium, nickel fluorocarbon, and passivation layer. The processing materials of the hole front insulator, hole back insulator, pin front insulator, and pin back insulator include but are not limited to phenolic plastic, epoxy resin, polytetrafluoroethylene, polyetheretherketone, polyphenylene sulfide, polyetherimide or polyimide.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bayonet differential connector, comprising a plug and a socket; characterized in that: The plug comprises a plug housing (1), a plug insulator assembly (2) is fixedly mounted in the plug housing (1), and an inner plug hole (3) is arranged in the plug insulator assembly (2); The socket comprises a socket housing (4), a pin insulator assembly (5) is fixedly mounted in the socket housing (4), and an inner pin (6) which can be inserted into the inner plug hole (3) is fixed in the pin insulator assembly (5); The invention also comprises an outer shell (7), which is a cylindrical structure, and is coaxially arranged at the plug-in end of the plug shell (1). The length of the outer shell (7) extends to the outer wall of the socket shell (4) plugged on the plug, and the inner wall of the outer shell (7) is provided with an L-shaped bayonet groove (8), and the outer wall of the socket shell (4) is provided with a limit pin (9) that cooperates with the L-shaped bayonet groove (8).

2. The bayonet differential connector according to claim 1, characterized in that: The plug housing (1) is provided with a keyway (10), and the socket housing (4) is provided with a convex key (11) that matches the keyway (10).

3. The bayonet differential connector according to claim 1, wherein: The tail outlet end of the plug housing (1) and the tail outlet end of the socket housing (4) are respectively provided with a crimping ring (12), and the tail outlet end of the plug housing (1) and the tail outlet end of the socket housing (4) are also provided with a wire protection sleeve (13), and the inner wall of the wire protection sleeve (13) is provided with an inner convex ring (14) that can be inserted into the crimping ring.

4. The bayonet differential connector according to claim 1, wherein: A corrugated spring abutting against the outer shell (7) is also provided in the plug shell (1).

5. The bayonet differential connector according to claim 1, wherein: The plug insulator assembly (2) comprises a coaxially arranged front hole insulator and a rear hole insulator, the inner plug hole (3) is fixed on the rear hole insulator, and the front hole insulator is provided with a mounting hole for the inner plug hole (3) to pass through.

6. The bayonet differential connector according to claim 1, wherein: The pin insulator assembly (5) comprises a coaxially arranged front pin insulator and a rear pin insulator, the inner pin (6) is fixed on the rear pin insulator, and the front pin insulator is provided with a mounting hole for the inner pin (6) to pass through.

7. The bayonet differential connector according to claim 1, characterized in that: The inner plug hole (3) in the plug and the inner plug pin (6) in the socket are respectively terminated with the corresponding cables by crimping or welding.

8. The bayonet differential connector according to claim 1, wherein: The outer walls of the pin insulator assembly (5) and the plug insulator assembly (2) are provided with anti-rotation keys, and the inner walls of the socket housing (4) and the plug housing (1) are provided with grooves that cooperate with the anti-rotation keys.

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