High-speed connector based on fuzz button

Abstract

The high-speed connector comprises a metal supporting frame (1), a plastic base (2) and a fuzz button part (7), the whole base of the metal supporting frame (1) is rectangular, and three screw holes (3) are formed in the two sides and the middle position of the base of the metal supporting frame; two cavities are formed among the three screw holes and are used for embedding the plastic base (2); the hole spacing of the plastic base (2) is designed according to the size of the embedded fuzz button part (7); the fuzz button part (7) is a product with a standard size according to the actual use requirement, and the signal impedance is adjusted by combining the hole site design of the plastic base. According to the invention, the interconnection flexibility between the parallel plates is enhanced by using the non-welding characteristic; by means of the microwave characteristic advantage of fuzz buttons, the upper limit of the electric signal transmission rate is improved; meanwhile, aiming at the requirement of structural reliability, a supporting frame and a guide column structure are designed, so that the stability and the reliability of the product in a complex environment are ensured.

Description

Technical Field

[0001] This invention relates to interconnection technology between printed circuit boards, and particularly to a high-speed connector based on a bobble button. Background Technology

[0002] The miniaturization, lightweighting, and standardization of avionics products are continuously deepening, and the industry is gradually shifting from customized functions to the utilization of general-purpose resources. Against this backdrop, the optimization and improvement of specific products can effectively drive the enhancement of overall design capabilities.

[0003] Currently, most board-to-board interconnects in avionics products use soldered or crimped connectors, which are integrated with functional components. Assembly and replacement require special tools or BGA rework stations, lacking flexibility. Furthermore, due to solder joints and residual solder points, signal transmission rates have a theoretical upper limit. The surface-contact button-type components used in this invention effectively overcome the deficiencies in flexibility and high speed of current board-to-board connectors. Summary of the Invention

[0004] The purpose of this invention is to provide a high-speed connector based on a button, which integrates signal transmission, structural frame, and positioning elements with surface contact solderless connection technology as its core. This connector enhances the flexibility of interconnection between parallel boards by utilizing the solderless feature; it increases the upper limit of electrical signal transmission rate by leveraging the microwave characteristics of the button; and it incorporates a support frame and guide post structure to ensure product stability and reliability in complex environments, addressing structural reliability requirements.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A high-speed connector based on a hair button includes a metal support frame 1, a plastic base 2, and a hair button part 7. The base of the metal support frame is generally rectangular, and three screw holes 3 are provided on both sides and in the middle of the base of the metal support frame. Two cavities are provided between the three screw holes for embedding the plastic base.

[0007] The hole spacing of the plastic base is designed according to the dimensions of the embedded button part 7;

[0008] The 7-piece button part is selected according to actual usage needs. Standard size products are selected and combined with the hole design of the plastic base to adjust the signal impedance.

[0009] Preferably, the hole spacing of the plastic base is designed to match the specifications of the button parts, so that the nominal differential impedance can be adjusted between 85 ohms and 100 ohms.

[0010] Preferably, the button parts are arranged in single or multiple cascaded units within the plastic base. The performance requirements of the button parts are that the pressing force when the two ends of the button are pressed flat is not greater than 1.5 Newtons, and the double-end floating and the elastic floating amount on one side is not less than 0.8 mm.

[0011] Preferably, the surface of the cavity protruding from the base is designated as the top surface of the connector cavity, and the surface of the cavity and the base is designated as the bottom surface of the connector cavity. A mounting hole is provided on the outer side of the top surface of each of the two connector cavities for assembling the guide post 4. Correspondingly, a guide hole 5 is provided at the same position on the bottom surface of each of the two connector cavities, and the size of the guide hole 5 matches the diameter of the guide post 4. Two printed circuit board positioning protrusions 6 are provided next to the two guide holes 5. The printed circuit board positioning protrusions 6 and the button connector guide post 4 form a positioning structure.

[0012] Preferably, the PCB positioning protrusion 6 is a cylindrical protrusion with an inwardly tapered top diameter for easy assembly. The protrusion height is no more than 1.8 mm, the cylinder diameter is no more than 2 mm, and the tolerance requirement is -0.05 mm to -0.08 mm.

[0013] Preferably, the guide post 4 is a cylindrical protrusion with an inwardly tapered top diameter for easy assembly. The protrusion height is not less than 6 mm, the cylindrical diameter is not greater than 2 mm, and the tolerance requirement is -0.05 mm to -0.08 mm.

[0014] Preferably, the depth of the guide hole 5 is not less than the height of the protrusion of the guide post 4, with a tolerance requirement of ±0.01 mm to ±0.04 mm.

[0015] The beneficial effects of this invention are as follows:

[0016] This invention provides a high-speed connector based on a fuzzy button, applicable to backplane-less stacked products. The solderless nature of the fuzzy button not only improves interconnect flexibility but also leverages its microwave characteristics to further enhance the electrical signal transmission rate between parallel printed circuit boards. Furthermore, this connector significantly reduces operational complexity during processing, maintenance, and repair, possessing significant application value and broad development prospects for improving the combat capabilities of aerospace equipment. Attached Figure Description

[0017] Figure 1 This is an overall example diagram of a high-speed connector based on a hair button according to the present invention.

[0018] Label Explanation

[0019] 1-Metal support frame, 2-Plastic base, 3-Screw hole, 4-Guide post, 5-Guide hole, 6-Printed circuit board positioning protrusion, 7-Hair button part. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] See Figure 1 As shown in the figure, this embodiment illustrates a high-speed connector based on a bobbin thread, comprising a metal support frame 1, a plastic base 2, and a bobbin thread component 7.

[0022] The metal support frame, made of alloy material, is used to ensure structural strength. The alloy ratio is adjusted according to the strength requirements of the application scenario. The base is rectangular in shape, with three screw holes 3 on both sides and in the center. The screw hole size is determined based on the product specifications. Two cavities are located between the three screw holes for embedding the plastic base. The surface of the cavity protruding from the base is defined as the top surface of the connector cavity, and the surface coplanar with the base is defined as the bottom surface of the connector cavity. One mounting hole is provided on the outer side of each of the two connector cavity top surfaces for assembling guide posts 4. Correspondingly, one guide hole 5 is provided at the same position on each of the two connector cavity bottom surfaces, with dimensions matching the guide post diameter. Two printed circuit board positioning protrusions 6 are located next to the two guide holes 5.

[0023] The plastic base is made of non-conductive material, and the hole spacing is designed according to the dimensions of the embedded button part. This, combined with the button part specifications, allows for adjustable nominal differential impedance between 85 ohms and 100 ohms, matching the impedance requirements of different signal transmission protocols.

[0024] For the 7-piece bobby button component, standard-sized products are selected based on actual usage needs. The signal impedance is adjusted in conjunction with the hole design of the plastic base. The bobby button component can be used individually or in cascades within the plastic base. Performance requirements for the bobby button component: when both ends are flattened, the clamping force should not exceed 1.5 N; for double-end floating, the elastic floating amount on one side should not be less than 0.8 mm.

[0025] The PCB positioning protrusion 6 and the button connector guide post 4 form a positioning structure. The PCB positioning protrusion 6 is a cylindrical protrusion with a recessed top diameter for easy assembly. It is located on the bottom surface of the connector cavity, with a protrusion height not exceeding 1.8 mm and a cylindrical diameter not exceeding 2 mm, with a tolerance of -0.05 mm to -0.08 mm. The guide post 4 is a cylindrical protrusion with a recessed top diameter for easy assembly. It is located on the top surface of the connector cavity, with a protrusion height not less than 6 mm and a cylindrical diameter not exceeding 2 mm, with a tolerance of -0.05 mm to -0.08 mm. A guide hole 5 of the same size as the guide post is provided at the same position on the bottom surface of the connector cavity. The depth of the guide hole is not less than the protrusion height of the guide post, with a tolerance of +0.01 mm to +0.04 mm to ensure contact stability.

[0026] It is understood that those skilled in the art can make equivalent substitutions or modifications to the technical solution and inventive concept of the present invention, and all such substitutions or modifications should fall within the protection scope of the appended claims.

Claims

1. A high speed connector based on a pogo pin comprising a metal support frame (1), a plastic base (2), a pogo pin part (7), characterized in that The base of the metal support frame (1) is rectangular as a whole, and three screw holes (3) are arranged at both sides and the middle of the base; two cavities are arranged between the three screw holes for embedding the plastic base (2); The plastic base (2) is designed according to the size of the embedded pinhead part (7) to design the hole spacing; The pinhead part (7) is selected according to the actual use requirement, and the signal impedance is adjusted in combination with the hole spacing design of the plastic base.

2. A high speed connector based on a hair pin according to claim 1, characterized in that The hole spacing design of the plastic base (2) cooperates with the pinhead part specification to realize that the nominal differential impedance is adjustable between 85 ohms and 100 ohms.

3. A high speed connector based on a hair pin according to claim 1, characterized in that The pinhead part (7) is single or multiple cascaded in the plastic base, and the performance requirement of the pinhead part is that the pressing force is not greater than 1.5 N when the two ends of the pinhead are pressed flat, the double-end floating, and the unilateral elastic floating amount is not less than 0.8 mm.

4. A high speed connector based on a hair pin according to claim 1, characterized in that The face of the cavity protruding from the base is set as the connector cavity top face, the cavity and the base are coplanar and set as the connector cavity bottom face, one mounting hole is arranged outside each of the two connector cavity top faces for assembling the guide column (4); correspondingly, one guide hole (5) is arranged at the same position of the two connector cavity bottom faces, the size of the guide hole (5) matches the diameter of the guide column (4); two printed board positioning protrusion points (6) are arranged beside the two guide holes (5), and the printed board positioning protrusion point (6) and the pinhead connector guide column (4) form a positioning structure.

5. A high speed connector based on the button according to claim 4, characterized in that The printed board positioning protrusion point (6) is a cylindrical protrusion shape, the top diameter is inwardly recessed for convenient assembly, the protrusion height is not greater than 1.8 mm, the cylindrical diameter is not greater than 2 mm, and the tolerance requirement is negative 0.05 mm to negative 0.08 mm.

6. A high speed connector based on the velcro according to claim 4, characterized in that The guide column (4) is a cylindrical protrusion shape, the top diameter is inwardly recessed for convenient assembly, the protrusion height is not less than 6 mm, the cylindrical diameter is not greater than 2 mm, and the tolerance requirement is negative 0.05 mm to negative 0.08 mm.

7. A high speed connector based on the button, according to claim 4, characterized in that The depth of the guide hole (5) is not less than the protrusion height of the guide column (4), and the tolerance requirement is positive 0.01 mm to positive 0.04 mm.

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