Multifunctional microminiature constant-amplitude in-phase high-speed integrated connector

Abstract

The utility model discloses a multifunctional microminiature constant-amplitude in-phase high-speed integrated connector, which comprises a shell, a mounting plate, N coaxial assemblies, a base, a shielding reed and a mounting screw, a shielding groove is formed in the front surface of the shell, interface mounting holes are formed in two ends of the shielding groove, a shell convex groove is formed in the middle of the shielding groove, and one end of the shell convex groove adopts large-arc transition while the other end adopts small-arc transition as a dual anti-misplug design; the mounting plate is arranged in the convex groove of the shell and is used for fixing the coaxial assembly; a shielding reed is arranged in a shielding groove of the shell; the base and the shell are connected through mounting screws to form a high-speed integrated connector; the user panel is fixed at the front end of the shell through mounting screws; coaxial contact pieces of different coaxial assemblies are connected in a bending mode through semi-rigid cables with the same physical length and the same electrical length, so that the equal-amplitude in-phase performance of the connector is guaranteed. The connector can realize transmission of multiple paths of high-speed serial differential signals or radio frequency integrated signals, and has the characteristics of integration, high density, strong shock resistance and high rate.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a multifunctional, miniature, equal-amplitude, in-phase high-speed integrated connector. Background Technology

[0002] With the rapid development of space technology and weapon systems, increasingly higher demands are being placed on the multi-functionality, high-speed integration, informatization, and miniaturization of spacecraft equipment. Therefore, higher requirements are being placed on connectors for multi-functionality, high-speed signal processing capabilities, signal amplitude and phase consistency, high reliability, and miniaturization.

[0003] The connector mainly consists of a housing, two types of bent RF coaxial connectors (long and short), and a base. Both types of bent coaxial connectors cannot achieve equal amplitude and in-phase signal transmission. Furthermore, they occupy a large space and are heavy, failing to meet the miniaturization requirements of systems. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention aims to propose a multifunctional, miniature, equal-amplitude, in-phase high-speed integrated connector. This connector can realize the transmission of multiple high-speed serial differential signals or radio frequency integrated signals, and features integration, high density, strong shock resistance, and high speed. This product is applicable to space technology and weapon systems, and can meet the needs of military communications, aerospace, and industrial applications.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A multifunctional, miniature, equal-amplitude, in-phase high-speed integrated connector includes a housing 1, a mounting plate 2, N coaxial components 3, a base 4, shielding springs 5, and mounting screws 6. The housing 1 has a shielding groove 1-1 on its front side, with interface mounting holes 1-4 at both ends and a housing protrusion 1-3 in the middle. One end of the housing protrusion 1-3 has a large arc transition 1-5, and the other end has a small arc transition 1-6 as a double anti-misfit design. The mounting plate 2 is disposed within the housing protrusion 1-3 for fixing the coaxial components 3. Shielding springs 5 ​​for electromagnetic shielding between the user mounting plate and the housing are disposed within the shielding groove 1-1 of the housing. The base 4 and the housing 1 are connected by mounting screws 6 to form a high-speed integrated connector. The user panel is fixed to the front end of the housing 1 by mounting screws 6.

[0007] The coaxial assembly 3 consists of a coaxial contact 3-1, a semi-rigid cable 3-2, and a four-legged solder joint 3-3. The coaxial contact 3-1 and the four-legged solder joint 3-3 of different coaxial assemblies are connected by bending the semi-rigid cable 3-2, which has the same physical and electrical length, to achieve installation at different hole positions and ensure the equal amplitude and phase of the connector. After installation, epoxy resin is used for potting and fixing.

[0008] The base 4 has a four-legged positioning platform 4-1 in the middle and fixing nuts 4-2, printed circuit board fixing holes 4-3 and interface positioning holes 4-4 at both ends. The four legs and inner conductor of the four-legged soldering base 3-3 pass through the back of the four-legged positioning platform 4-1 from the front and are used for soldering connection with the user's printed circuit board. The mounting screws 6 are connected through the interface mounting holes 1-4 of the outer shell 1, the interface positioning holes 4-1 of the base 4 and the fixing nuts 4-2 of the base 4 to achieve a reliable connection between the base 4 and the outer shell 1.

[0009] The M3 standard screws are connected to the user's printed circuit board through the printed circuit board fixing hole 4-3; the four-leg positioning platform 4-1 is used to position the four-leg wire bonding seat 3-3 to ensure the consistency of the dimensions of the four-leg wire bonding seat 3-3 extending out of the base end face; the fixing nut 4-2 is made of stainless steel; the base 4 is made of injection molded plastic, and the plastic base 4 meets the system's requirements for lightweighting.

[0010] The spacing between adjacent four-legged solder pads, between adjacent coaxial contacts, and between contacts in the same row and in different rows is 4mm×4mm.

[0011] The four-legged wire bonding holder 3-3 includes a square positioning platform 3-3-2 and wire bonding legs 3-3-1 fixed on the square positioning platform 3-3-2. The spacing between the wire bonding legs 3-3-1 is 2.33mm × 2.33mm.

[0012] The coaxial contact 3-1 includes a socket 3-1-1, an outer conductor 3-1-4, an insulator 3-1-2 and an insulating sheet 3-1-3 disposed between the socket 3-1-1 and the outer conductor 3-1-4, wherein the insulating sheet 3-1-3 is located at the rear end of the insulator 3-1-2. Both the socket 3-1-1 and the outer conductor 3-1-4 are provided with barbs and positioning platforms; the socket 3-1-1 is soldered to the core wire of the semi-rigid cable 3-2, and the outer conductor 3-1-4 is soldered to the outer conductor of the semi-rigid cable 3-2.

[0013] The mounting plate 2 includes a mounting plate positioning platform 2-1 and a coaxial component positioning platform 2-2.

[0014] The mounting plate 2 is provided with an interface sealing gasket 7 for rain protection.

[0015] The back of the outer shell 1 is provided with a glue-applying platform 1-2 for radial positioning of the base 4 and for applying epoxy resin adhesive.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] 1) Small size and light weight, meeting the system's requirements for miniaturization and saving 40% to 60% of space.

[0018] 2) It can transmit single-ended signals, differential signals, and radio frequency signals, realizing multi-functional signal transmission.

[0019] 3) The modular assembly is simple and convenient to process and assemble, and easy to operate.

[0020] 4) Adopting a dual anti-misinsertion design, it effectively protects internal contacts and meets the requirements of high product reliability.

[0021] 5) The new shielding design improves the product's electromagnetic compatibility.

[0022] 6) The use of bent semi-rigid cables achieves the design of equal amplitude and phase in each channel, improving high-frequency performance and shielding performance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a high-speed integrated connector in one embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the outer casing in one embodiment of the present invention;

[0025] Figure 3 , Figure 4 A schematic diagram of the structure of the multifunctional micro-miniature equal amplitude in phase high-speed integrated connector provided in this application;

[0026] Figure 5 This is a schematic diagram of the base structure in one embodiment of the present invention.

[0027] The components include: 1. Outer shell; 2. Mounting plate; 3. Coaxial assembly; 4. Base; 5. Shielding spring; 6. Mounting screw; 7. Interface sealing gasket; 1-1 Shielding groove; 1-2 Adhesive application platform; 1-3 Outer shell protrusion; 1-4 Interface mounting hole; 1-5 Large arc transition; 1-6 Small arc transition; 2-1 Mounting plate positioning platform; 2-2 Coaxial component positioning platform; 3-1 Coaxial contact component; 3-2 Semi-rigid cable; 3-3 Four-legged welding socket; 3-1-1 Insertion hole; 3-1-2 Insulator; 3-1-3 Insulating sheet; 3-1-4 Outer conductor; 3-3-1 Welding leg; 3-3-2 Square positioning platform; 4-1 Four-legged positioning platform; 4-2 Fixing nut; 4-3 Printed circuit board fixing hole; 4-4 Interface positioning hole. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 , Figure 3 and Figure 5As shown, this utility model provides a multifunctional, miniature, equal-amplitude, in-phase high-speed integrated connector, including a housing 1, a mounting plate 2, N coaxial assemblies 3, a base 4, shielding springs 5, mounting screws 6, and an interface sealing gasket 7. Each coaxial assembly consists of a coaxial contact 3-1, a semi-rigid cable 3-2, and a four-legged solder pad 3-3. The base 4 has a four-legged positioning platform 4-1 and printed circuit board fixing holes 4-3. The mounting plate 2 is disposed inside the housing 1 to fix the coaxial contact 3-1. The four-legged solder pads 3-3 are disposed on the base positioning platform 4-1, wherein the four legs above the base can be soldered to the user's printed circuit board. The base 4 and the housing 1 are connected by mounting screws 6 to form a high-speed integrated connector, wherein the user panel is fixed to the front end of the housing 1 by mounting screws 6. The interface sealing gasket 7 is disposed on the mounting plate 2 to achieve a rainproof design for the interface.

[0030] The beneficial effects of the above technical solution are: the product is small in size, light in weight, and easy to install, and can realize multi-functional transmission of single-ended, differential, and radio frequency signals, meeting the requirements of system multi-functionality, high speed, and integration.

[0031] like Figure 2 As shown, the shielding spring 5 is disposed in the shielding groove 1-1 of the outer shell to achieve electromagnetic shielding between the user mounting plate and the outer shell, effectively avoiding signal interference to the system, while the system signal will not interfere with other signals.

[0032] like Figure 2 As shown, the back of the outer casing 1 is provided with an adhesive application platform 1-2 for radial positioning of the base 4 and epoxy resin adhesive application. The front of the outer casing 1 is provided with a shielding groove 1-1, with interface mounting holes 1-4 at both ends and a casing protrusion 1-3 in the middle. One end of the casing protrusion 1-3 has a large arc transition 1-5, and the other end has a small arc transition 1-6. This design provides dual protection against mis-insertion, preventing mis-insertion and misalignment during insertion and removal that could lead to coaxial contact failure, effectively improving the product's service life and reliability.

[0033] like Figure 1 and Figure 3 As shown, the mounting plate 2 is disposed within the outer casing groove 1-3 of the outer casing 1 for mounting the coaxial assembly 3. It includes a mounting plate positioning stage 2-1 and a coaxial component positioning stage 2-2.

[0034] like Figure 3As shown, the coaxial assembly 3 consists of a coaxial contact 3-1, a semi-rigid cable 3-2, and a four-legged solder joint 3-3. Different coaxial assemblies achieve different mounting positions by bending the coaxial contact 3-1 to connect it to the semi-rigid cable 3-2, which has the same physical and electrical length. After installation, it is fixed with epoxy resin potting. The coaxial assemblies of each channel achieve amplitude and phase consistency of the connectors by bending the semi-rigid cable, ensuring consistent synchronous signal transmission and guaranteeing the equal amplitude and phase of the entire system. Simultaneously, the semi-rigid cable has excellent shielding efficiency, ensuring excellent electromagnetic shielding when the signal is transmitted through the coaxial assembly, effectively preventing signal interference to the system and ensuring that the system signal does not interfere with other signals, meeting the system's requirements for electromagnetic shielding and signal transmission consistency. The epoxy resin potting fixation also ensures the reliability and stability of the product when subjected to vibration and shock tests, meeting the system's high reliability requirements.

[0035] like Figure 4 As shown, the coaxial contact 3-1 includes a socket 3-1-1, an outer conductor 3-1-4, an insulator 3-1-2 and an insulating sheet 3-1-3 disposed between the socket 3-1-1 and the outer conductor 3-1-4, wherein the insulating sheet 3-1-3 is located inside the insulator 3-1-2. Both the socket 3-1-1 and the outer conductor 3-1-4 are provided with barbs and positioning platforms. The socket 3-1-1 is soldered to the core wire of the semi-rigid cable 3-2, and the outer conductor 3-1-4 is soldered to the outer conductor of the semi-rigid cable 3-2 to ensure signal stability and reliability. The beneficial effects of this technical solution are: the barbs on the outer conductor 3-1-4 prevent the insulator 3-1-2 from rotating or shifting under external force; the positioning platform is used for limiting movement and ensuring the consistency of the interface dimensions between the insulator 3-1-2 and the outer conductor 3-1-4. An insulating sheet 3-1-3 is provided in the coaxial contact 3-1 to prevent needle shrinkage, which is used to prevent the semi-rigid cable 3-2 from shrinking during cable bending. The insertion hole 3-1-1 of the coaxial contact 3-1 is provided with barbs to avoid stress on the core wire of the semi-rigid cable 3-2 caused by repeated insertion and removal. The insertion hole 3-1-1 is provided with a positioning platform to ensure the consistency of the interface between the insertion hole 3-1-1 and the outer conductor 3-1-4, so as to meet the system's requirements for product multifunctionality and transmission consistency.

[0036] like Figure 3 As shown, the spacing between adjacent four-legged solder pads, between adjacent coaxial contacts, and between contacts in the same row and those in different rows is 4mm × 4mm. Figure 4As shown, the four-legged wire bonding socket 3-3 includes a square positioning platform 3-3-2 and wire bonding legs 3-3-1 fixed on the square positioning platform 3-3-2. The spacing between the wire bonding legs 3-3-1 is 2.33mm × 2.33mm. The four-legged wire bonding socket, adjacent wire bonding sockets, and adjacent contacts all feature small spacing, saving printed circuit board space. Compared with previous products, it saves 40% to 60% of space, meeting the requirements of miniaturization and system integration in space technology and weapon equipment.

[0037] like Figure 1 , 5 As shown, the base 4 is equipped with a four-leg positioning platform 4-1, a fixing nut 4-2, a printed circuit board fixing hole 4-3, and an interface positioning hole 4-4. The four-leg positioning platform 4-1 is used to position the four-leg wire bonding bracket 3-3. The four legs and the inner conductor of the four-leg wire bonding bracket 3-3 pass through the front of the four-leg positioning platform 4-1 and into the back for soldering connection with the user's printed circuit board. The mounting screw 6 is connected through the interface mounting hole 1-4 of the housing 1, the interface positioning hole 4-1 of the base 4, and the fixing nut 4-2 of the base 4 to achieve a reliable connection between the base 4 and the housing 1. M3 standard screws are used to achieve a reliable connection with the user's printed circuit board through the printed circuit board fixing hole 4-3. The four-legged positioning platform 4-1 is used to position the four-legged wire bonding base 3-3, ensuring the consistency of the dimensions of the four-legged wire bonding base 3-3 extending beyond the end face of the base. The fixing nut 4-2 is made of stainless steel to meet the reliability requirements of the user during installation and removal. M3 standard screws are used to reliably connect to the user's printed circuit board through the fixing holes 4-3 on the printed circuit board. The base 4 is made of injection-molded plastic. The plastic material has excellent insulation properties and isolates the influence of the external environment (such as moisture and dust) on the internal circuit. When connected to the user's PCB, stable conductivity is achieved through metal contacts. At the same time, the plastic base forms physical isolation to avoid circuit phenomena. In addition, the combination of plastic and PCB is the most cost-effective choice in most scenarios, meeting the system's requirements for light weight, functionality, economy, and reliability.

[0038] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A multi-functional micro-miniature equal amplitude in-phase high speed integrated connector characterized by: The application relates to a high-speed integrated connector, which comprises a shell (1), a mounting plate (2), N coaxial assemblies (3), a base (4), shielding spring leaves (5) and mounting screws (6); the front surface of the shell (1) is provided with a shielding groove (1-1), the two ends of the shielding groove (1-1) are provided with interface mounting holes (1-4), the middle part of the shielding groove (1-1) is provided with a shell convex groove (1-3), one end of the shell convex groove (1-3) is a large circular arc transition (1-5), the other end of the shell convex groove (1-3) is a small circular arc transition (1-6) as a double mistaken insertion prevention design; the mounting plate (2) is arranged in the shell convex groove (1-3) and used for fixing the coaxial assemblies (3); the shielding spring leaves (5) are arranged in the shielding groove (1-1) of the shell and used for electromagnetic shielding between the user mounting plate and the shell; the base (4) and the shell (1) are connected through the mounting screws (6) to form the high-speed integrated connector; and the user panel is fixed to the front end of the shell (1) through the mounting screws (6).

2. The multi-functional micro-miniature equal amplitude in-phase high speed connector of claim 1, wherein: The coaxial assembly (3) is composed of a coaxial contact (3-1), a semi-rigid cable (3-2) and a four-leg soldering seat (3-3), the coaxial contacts (3-1) and the four-leg soldering seats (3-3) of different coaxial assemblies are connected through the semi-rigid cable (3-2) with the same physical length and electrical length to realize the installation of different hole positions and ensure the equal amplitude and phase of the connector; after the installation is completed, the epoxy resin glue is used for pouring and fixing.

3. The multi-functional micro-miniature equal amplitude in-phase high speed connector of claim 2, wherein: The middle part of the base (4) is provided with a four-leg positioning table (4-1), the two ends are provided with fixed nuts (4-2), printed board fixing holes (4-3) and interface positioning holes (4-4); the four legs of the four-leg soldering seat (3-3) and the inner conductor pass through the front surface to the back surface from the front surface of the four-leg positioning table (4-1) and are used for being connected with the user printed board through tin soldering; the mounting screws (6) are connected through the interface mounting holes (1-4) of the shell (1), the interface positioning holes (4-4) of the base (4) and the fixed nuts (4-2) of the base (4) to realize the reliable connection of the base (4) and the shell (1).

4. The multi-functional micro-miniature equal amplitude in-phase high speed connector of claim 3, wherein: The standard screws with M3 are connected with the user printed board through the printed board fixing holes (4-3); the four-leg positioning table (4-1) is used for positioning the four-leg soldering seat (3-3) and ensuring the consistency of the four-leg soldering seat (3-3) in the extension size of the base end surface; the fixed nuts (4-2) are made of stainless steel material; the base (4) is made of injection plastic, and the base (4) made of plastic material realizes the light weight requirement of the system.

5. The multi-functional micro-miniature equal amplitude in-phase high speed connector of claim 2, wherein: The spacing between the adjacent four-leg soldering seats, the spacing between the adjacent coaxial contacts, the spacing of the same row and the different row are all 4mm*4mm.

6. The multi-functional micro-miniature equal amplitude in-phase high speed connector of claim 2, wherein: The four-leg soldering seat (3-3) comprises a four-square positioning table (3-3-2) and soldering legs (3-3-1) fixed on the four-square positioning table (3-3-2), and the spacing of the soldering legs (3-3-1) is 2.33mm*2.33mm.

7. The multi-functional micro-miniature equal amplitude in-phase high speed connector of claim 2, wherein: The coaxial contact (3-1) comprises a socket (3-1-1), an outer conductor (3-1-4), an insulator (3-1-2) and an insulating sheet (3-1-3) arranged between the socket (3-1-1) and the outer conductor (3-1-4), wherein the insulating sheet (3-1-3) is located at the rear end of the insulator (3-1-2); the socket (3-1-1) and the outer conductor (3-1-4) are both provided with barbs and positioning platforms; the socket (3-1-1) is tin soldered with the core wire of the semi-rigid cable (3-2), and the outer conductor (3-1-4) is tin soldered with the outer conductor of the semi-rigid cable (3-2).

8. The multi-functional micro-miniature equal amplitude in-phase high speed connector of claim 1, wherein: The mounting plate (2) comprises a mounting plate positioning platform (2-1) and a coaxial component positioning platform (2-2).

9. The multi-functional micro-miniature equal amplitude in-phase high speed connector of claim 1, wherein: The mounting plate (2) is provided with an interface sealing gasket (7) for preventing rain.

10. The multi-functional micro-miniature equal amplitude in-phase high speed connector of claim 1, wherein: The back of the shell (1) is provided with a pull gelling platform (1-2) for realizing the radial positioning of the base (4) and the epoxy resin gelling.

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