CN219371423U - Connector with a plurality of connectors - Google Patents

Abstract

The utility model discloses a connector, which comprises a shell, an insulating part and a spring needle; the shell is plate-shaped, and a plurality of mounting holes penetrating through the thickness of the plate are formed in the shell; the insulation part is annular, the insulation part is sleeved in the mounting hole, and a spring needle is sleeved in an inner hole of the insulation part; the two ends of the spring needle are higher than the plane of the shell, and can be compressed and contracted in the mounting hole; the connector can be used for detecting high-frequency high-speed PCB board, and shell ground connection and spring needle and shell insulation structure can effectively ensure the switching on of high-frequency high-speed signal, and the connector spring needle structure can reliably guarantee the electric connection of connector and high-frequency high-speed PCB board, and the structure of connector is simple, effectively simplifies and shortens structure and electric connection distance between two high-frequency high-speed PCB boards that await measuring, can transmit higher high-frequency high-speed signal.

Description

Connector with a plurality of connectors

Technical Field

The utility model relates to the field of high-frequency high-speed photoelectric testing, in particular to a connector.

Background

With the rapid development of information technology, high-speed information transmission has become an important part of daily life, and the reliability of high-speed information transmission has also become more important. High frequency and high speed signal transmission is becoming more and more widely used. In the existing high-frequency high-speed photoelectric test technology, the interconnection between high-frequency circuit boards is generally realized by adopting a backboard error code test module, a coaxial error code test module, a cable assembly and other means. The conventional technology is limited by bandwidth, and is difficult to reach even 20GHz, the difficulty is increased along with the increase of the bandwidth, the die structure is complex, the structural design difficulty is exponentially increased, and the cost and the uneconomical performance are realized; by adopting an unconventional welding means, although the test can be realized to a certain extent, the damage condition in the dismantling process exists, the process is responsible, and the like, and the method is not suitable for industrialized test conditions, and the like. In addition, the conventional coaxial error code testing module and the cable assembly have the defects of high cost and long signal transmission path, and the requirement of signal integrity is difficult to ensure.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the connector which has a simple structure and low cost and can effectively transmit high-frequency and high-speed signals.

The utility model adopts the following technical scheme: a connector comprising a housing, an insulating portion, and a pogo pin; the shell is plate-shaped, and a plurality of mounting holes penetrating through the thickness of the plate are formed in the shell; the insulation part is annular, the insulation part is sleeved in the mounting hole, and a spring needle is sleeved in an inner hole of the insulation part; the two ends of the spring needle are higher than the plane of the shell, and the two ends of the spring needle can be compressed and contracted in the mounting hole.

The shell is made of metal and can realize electrical grounding; the spring needle is made of metal, so that reliable transmission of signals can be guaranteed. The shell is made of copper alloy, and the surface of the shell is plated with gold; the spring needle is made of copper alloy, and the surface of the spring needle is plated with gold.

The mounting holes are arranged in an array according to the requirement.

Further, a plurality of fixing holes are respectively arranged on the two thickness planes of the shell.

The fixing holes can be threaded holes, and reliable fixing of the high-frequency and high-speed PCB to be detected and the connector can be achieved through threaded fasteners such as screws.

Further, positioning parts are respectively arranged on two thickness planes of the shell.

The positioning part can adopt a positioning pin; the end of the locating pin can be chamfered to facilitate guiding; the locating pin may also be tapered.

Further, the pogo pin includes a post, a spring, and a contact pin; the inside of the cylinder is cylindrical hollow, an opening is formed in the end face of the cylinder to communicate the hollow with the outside, and the diameter of the opening at the end face of the cylinder is smaller than that of the hollow inside; the contact pin is a convex rotating body, the large-diameter end of the contact pin is sleeved in the cylinder, and the small-diameter end of the contact pin penetrates through the opening at the end face of the cylinder to extend out of the cylinder; the spring is arranged in the cylinder body and abuts against the bottom surface of the large-diameter end of the contact pin, and applies force directed from the large-diameter end of the contact pin to the small-diameter end; the cylinder end face is lower than the plane of the shell, the small end face of the contact needle exceeds the plane of the shell, and the contact needle can move towards the inside of the shell along the hollow inside the cylinder under pressure.

Further, each cylinder comprises two equal internal hollows, and the two internal hollows are symmetrically arranged on a datum plane passing through the center of the cylinder and perpendicular to the axial plane of the cylinder; each of the hollow parts is provided with a spring, one end of the spring is abutted against the large-diameter end of the contact pin, and the other end of the spring is abutted against the column body.

Further, each of the columns includes an interior hollow; a cylinder is provided with a spring, and both ends of the spring respectively abut against the two contact pins.

Further, the large end face of the contact pin is an inclined face, and the spring abuts against the contact pin to provide force perpendicular to the axial direction so as to ensure contact between the contact pin and the cylinder.

Further, the housing includes a housing body and a securing ring; a cylindrical step for accommodating the fixing ring is arranged on one side plane of the outer shell; the step and the mounting hole are coaxially arranged; the fixed ring is sleeved in the step, and the outer shell and the fixed ring clamp and fix the insulating part.

Further, the fixed ring is provided with a groove for positioning the insulating part at the inner hole of the abutting end surface of the outer shell, the groove is annular, the outer diameter of the groove corresponds to the outer diameter of the insulating part, the depth of the groove corresponds to the height of the insulating part, the insulating part is sleeved in the groove, one end surface of the insulating part abuts against the fixed ring, and the other end of the insulating part abuts against the outer shell.

The utility model has the beneficial effects that: the connector can be used for detecting the high-frequency high-speed PCB, the shell grounding and the spring pin and shell insulating structure can effectively ensure the conduction of high-frequency high-speed signals, the spring pin structure of the connector can reliably ensure the electrical connection of the connector and the high-frequency high-speed PCB, the structure of the connector is simple, the structure and the electrical connection distance between two high-frequency high-speed PCBs to be detected are effectively simplified and shortened, and higher-frequency high-speed signals can be transmitted.

Further, the arrangement of the fixing holes can enable the PCB to be directly installed and fixed on the connector, and the structure of PCB detection is further simplified.

Further, the setting of location portion can simplify the PCB installation, places the PCB board more accurately, improves the efficiency that detects.

Further, the spring can effectively ensure the contact between the contact pin and the PCB board and ensure the effect of electrical connection.

Furthermore, the hollow structure can be further simplified, and the manufacturing cost is reduced.

Further, the inclined surface of the large end of the contact pin is arranged, so that the force exerted by the spring enables the contact pin to be in effective contact with the cylinder, and signal transmission between the contact pin and the cylinder is ensured.

Furthermore, the arrangement of the outer shell and the fixing ring can simplify the installation of the insulating part and reduce the manufacturing difficulty of the connector.

Further, the insulator can be positioned fast through the arrangement of the grooves, so that the installation of the connector is further reduced, and the installation efficiency of the connector is improved.

Drawings

FIG. 1 is a schematic view of a connector of the present utility model;

FIG. 2 is a schematic elevation view of section A-A of FIG. 1;

FIG. 3 is a schematic view of the detail B of FIG. 2;

fig. 4 is another structural schematic diagram of detail B in fig. 2.

Detailed Description

Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Example 1

Fig. 1, 2 and 3 are schematic structural views of an embodiment of the track connector of the present utility model. As shown in fig. 1, the present utility model includes a housing 1, an insulating portion 2, and a pogo pin 3; the shell 1 is plate-shaped, and a plurality of mounting holes 11 penetrating through the thickness of the plate are formed in the shell 1; the insulation part 2 is annular, the insulation part 2 is sleeved in the mounting hole 11, and the spring needle 3 is sleeved in the inner hole of the insulation part 2; the two ends of the spring needle 3 are higher than the plane of the shell 1, and the two ends of the spring needle 3 can be pressed and contracted in the mounting hole 11.

The utility model is suitable for detecting the high-frequency high-speed PCB 4, and the shell 1 and the spring needle 3 are both made of metal. As a specific embodiment, the high-frequency high-speed PCB board 4 is placed on both sides of the housing 1 and the pogo pin 3 using a copper alloy connector with gold plating on the surface, the pogo pin 3 collides with the PCB, and the effective electrical connection of the two high-frequency high-speed PCB boards 4 is achieved through the connector. The shell 1 is grounded through the high-frequency high-speed PCB 4, the annular ground formed by the mounting holes 11 is connected with the spring needle 3 and the high-frequency high-speed PCB 4 reliably and electrically, and the high-frequency high-speed transmission effect is achieved.

When the spring needle assembly is used, the mounting holes 11 are arranged in an array, the spring needle 3 is arranged in the mounting holes 11, the spring needle 3 is arranged at the axle center position of the mounting holes 11, the spring needle 3 and the shell 1 are fixed through the insulating part 2, and meanwhile, the insulating part 3 can effectively electrically isolate the spring needle 3 from the shell 1.

As a specific embodiment, as shown in fig. 3, the pogo pin 3 includes a cylinder 31, a spring 32, and a contact pin 33; the inside of the column 31 is cylindrical and hollow, an opening is formed in the end face of the column 31 to communicate the internal hollow with the outside, and the diameter of the opening at the end face of the column 31 is smaller than that of the internal hollow; the contact pin 33 is a convex rotating body, the large diameter end of the contact pin 33 is sleeved inside the column 31, and the small diameter end of the contact pin 33 passes through the opening at the end face of the column 31 and extends out of the column 31; the spring 32 is arranged inside the column 31 to abut against the bottom surface of the large diameter end of the contact pin 33 and apply a force directed from the large diameter end of the contact pin 33 to the small diameter end; the end face of the column 31 is lower than the plane of the housing 1, the small end face of the contact pin 33 exceeds the plane of the housing 1, and the contact pin 33 can move towards the interior of the housing 1 along the hollow interior of the column 31 under pressure. Each column 31 of the columns 31 comprises two equal internal hollows, the two internal hollows being symmetrically arranged with a reference plane passing through the center of the column 31 and perpendicular to the axial plane of the column 31; each of the inner hollow portions is provided with a spring 32, one end of the spring 32 abuts against the large diameter end of the contact pin 33, and the other end of the spring 32 abuts against the column 31.

When the embodiment is used, the spring pins 3 arranged in an array are abutted against the high-frequency high-speed PCB 4 to be inspected on two sides, and specifically, the contact pins 33 in the spring pins 3 are abutted against the high-frequency high-speed PCB 4; the contact pin 33 moves to the flat surface flush position of the housing 1 inside the housing 1 due to the compression of the high-frequency high-speed PCB 4, the contact pin 33 presses the spring 32 to shrink, at this time, the housing 1 is grounded in contact with the bottom line of the high-frequency high-speed PCB 4, and the contact pin 33 is electrically conducted in contact with the wire arranged on the high-frequency high-speed PCB 4 so as to be capable of transmitting high-frequency high-speed signals. As a specific embodiment, the large end of the contact pin 33 is in small clearance fit with the hollow inside the cylinder 31, so that the contact pin 33 can move along the axial direction, and the contact pin 33 is prevented from shaking in the hollow inside the cylinder 31. As a specific embodiment, a groove for installing and positioning the insulating part 2 can be formed in the middle of the column 31, so that after the column 31, the spring 32 and the contact pin 33 are installed, the distance between two end surfaces of the column 31 and two thickness direction planes of the shell 1 is opposite, and the installation difficulty is reduced.

As a specific way of realising, the smaller the diameter of the small end of the contact pin 33, the more advantageous is the transmission of high frequency and high speed signals. In this embodiment, the diameter of the small end of the contact pin 33 abutting against the high-frequency high-speed PCB board 4 is not greater than 0.5mm, as a specific manner of fact, the diameter of the small end of the contact pin 33 abutting against the high-frequency high-speed PCB board 4 is 0.3mm, the small end diameter of the smaller contact pin 33 ensures good effect of transmitting high-frequency high-speed signals, and the diameter of 0.3mm can ensure good balance and difficulty and rigidity of the contact pin 33, and ensure processing economy and reuse of the contact pin 33.

As a specific way of realising, the contact pin 33 is beveled at its large end face, and the spring 32 abutting against the contact pin 33 can provide a force perpendicular to the axial direction ensuring contact of the contact pin 33 with the cylinder 31.

In use of the embodiment, the high-frequency high-speed PCB 4 is abutted against both sides of the thickness of the housing 1, the high-frequency high-speed PCB 4 is abutted against the contact pins 33 on the spring pins 3, the contact pins 33 compress the springs 32, the springs 32 act on the inclined surfaces of the large ends of the contact pins 33, the springs 32 act on the inclined surfaces of the large ends, the springs have components perpendicular to the axial directions of the springs, and the springs urge the contact pins 33 to be in good contact with the columns 31.

As a specific way of realisation, the casing 1 comprises a casing body 14 and a fixing ring 15; a cylindrical shape for accommodating the fixing ring 15 is arranged on one side plane of the outer shell 14; the step 141 is coaxially provided with the mounting hole 11; the fixing ring 15 is sleeved in the step 141, and the outer shell 14 and the fixing ring 15 clamp and fix the insulating part 2.

In use, this embodiment employs an interference fit between the retaining ring 14 and the outer housing 14. The spring needle 3 is sleeved in the insulating part 2, the spring needle 3 and the insulating part 2 are concentrically arranged in the step 141 of the outer shell 14, and the fixing ring 15 is pressed into the step 141 to fix the insulating part. As a specific embodiment, a groove for positioning and fixing the insulating part 2 is provided on the outer surface of the middle part of the column body 31 of the pogo pin 3, so that the installation efficiency and the installation accuracy of the insulating part 2 and the pogo pin 3 can be improved.

As a specific embodiment, as shown in fig. 1, a plurality of fixing holes 12 are respectively formed on two thickness planes of the housing 1.

In use, the fixing holes 12 for fixing the high-frequency and high-speed PCB 4 are provided on two thickness planes of the housing 1. As a specific embodiment, the fixing hole 12 is a threaded hole blind hole, a through hole for installation is provided at a corresponding position on the high-frequency high-speed PCB 4 to be inspected, the through hole for installation on the high-frequency high-speed PCB 4 is aligned with the fixing hole 12, and fasteners such as through hole screws fix the high-frequency high-speed PCB 4 on the housing 1. The fixture or fixing structure design for fixing the high-frequency and high-speed PCB board 4 to the casing 1 can be simplified. As a specific embodiment, the number of the fixing holes 12 is even, and specifically, four.

As a specific embodiment, the positioning portions 13 are provided on two thickness planes of the housing 1, respectively.

In the use of this embodiment, the positioning portion 13 is a positioning pin, and the end face of the positioning pin is chamfered. Corresponding positioning through holes on the high-frequency high-speed PCB 4 are sleeved on the positioning part 13, and the high-frequency high-speed PCB 4 is fixed on the shell 1 by adopting fasteners such as screws. As a specific embodiment, the number of the fixing portions 13 is two.

Example 2

Fig. 1, 2 and 4 are schematic structural views of another embodiment of the track connector of the present utility model. Other structures of the connector in this embodiment are identical to those of the embodiment of fig. 1, the main difference being that the column 31 of fig. 3 comprises two hollow interiors, one spring 32 being provided in each hollow interior of the column 31; the column 31 of fig. 4 includes an inner hollow, and the column 31 includes a spring 32, and both ends of the spring 32 abut against the large end bottoms of the two contact pins 33, respectively; the fixing ring 15 in fig. 3 is not provided with the groove 151 for positioning the insulating part 2, and the fixing ring 15 in fig. 4 is provided with the groove 151 for positioning the insulating part 2.

As a specific embodiment, as shown in fig. 4, an internal hollow is provided in each column 31; a spring 32 is arranged in the column 31, so that the structure of the connector can be further simplified, and meanwhile, acting forces of the connector and the two high-frequency high-speed PCBs 4 respectively can be balanced.

The fixed ring 15 is provided with a groove 151 for positioning the insulating part 2 at the inner hole of the abutting end surface of the outer shell 14, the groove 151 is annular, the outer diameter of the groove 151 corresponds to the outer diameter of the insulating part 2, the depth of the groove 151 corresponds to the height of the insulating part 2, the insulating part 2 is sleeved in the groove 151, one end surface of the insulating part 2 abuts against the fixed ring 15, and the other end of the insulating part 2 abuts against the outer shell 14.

When the connector is used, the insulation part 2 and the spring needle 3 assembly which are sleeved and installed are placed in the groove 151 to be rapidly positioned, the fixing ring 15, the insulation part 2 and the spring needle 3 assembly are installed on the step 141 of the outer shell 14, the insulation part 2 is effectively fixed by the fixing ring 15 and the outer shell 14, the concentricity of the spring needle 3 and the installation hole 11 can be effectively ensured by the groove 151 of the fixing ring 15, and the connector is further ensured to be better applied to high-frequency and high-speed signals.

The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (9)

1. The connector is characterized by comprising a shell (1), an insulating part (2) and a spring needle (3);

the shell (1) is plate-shaped, and a plurality of mounting holes (11) penetrating through the thickness of the plate are formed in the shell (1); the insulation part (2) is annular, the insulation part (2) is sleeved in the mounting hole (11), and the spring needle (3) is sleeved in the inner hole of the insulation part (2);

the two ends of the spring needle (3) are higher than the plane of the shell (1), and the two ends of the spring needle (3) can be compressed and contracted in the mounting hole (11).

2. Connector according to claim 1, characterized in that the housing (1) is provided with a plurality of fixing holes (12) in each of its two thickness planes.

3. Connector according to claim 1, characterized in that the housing (1) is provided with positioning portions (13) on two thickness planes, respectively.

4. A connector according to claim 1 or 2 or 3, characterized in that the pogo pin (3) comprises a cylinder (31), a spring (32) and a contact pin (33); the inside of the cylinder (31) is cylindrical and hollow, an opening is formed in the end face of the cylinder to communicate the internal hollow with the outside, and the diameter of the opening at the end face of the cylinder (31) is smaller than that of the internal hollow; the contact needle (33) is a convex rotary body, the large-diameter end of the contact needle (33) is sleeved inside the column body (31), and the small-diameter end of the contact needle (33) penetrates through an opening at the end face of the column body (31) to extend out of the column body (31); the spring (32) is arranged inside the column body (31) and abuts against the bottom surface of the large-diameter end of the contact pin (33) and applies force from the large-diameter end of the contact pin (33) to the small-diameter end; the end face of the column body (31) is lower than the plane of the shell (1), the small end face of the contact needle (33) exceeds the plane of the shell (1), and the contact needle (33) can move towards the inside of the shell (1) along the hollow inside of the column body (31) under pressure.

5. The connector according to claim 4, characterized in that each cylinder (31) of said cylinders (31) comprises two equal internal hollows, the two internal hollows being symmetrically arranged with a reference plane passing through the centre of the cylinder (31) and perpendicular to the axial plane of the cylinder (31); each of the inner cavities is provided with a spring (32), one end of the spring (32) is abutted against the large-diameter end of the contact pin (33), and the other end of the spring (32) is abutted against the column body (31).

6. The connector according to claim 5, wherein the posts (31) each comprise an internal hollow; a column (31) is provided with a spring (32), and both ends of the spring (32) respectively abut against two contact pins (33).

7. Connector according to claim 5 or 6, characterized in that the contact pin (33) is beveled at its large end face, and that the spring (32) against the contact pin (33) is able to provide a force perpendicular to the axial direction ensuring contact of the contact pin (33) with the cylinder (31).

8. A connector according to claim 1 or 2 or 3, characterized in that the housing (1) comprises an outer shell (14) and a securing ring (15); a cylindrical step (141) for accommodating the fixing ring (15) is arranged on one side plane of the outer shell (14); the step (141) is coaxially arranged with the mounting hole (11); the fixed ring (15) is sleeved in the step (141), and the outer shell (14) and the fixed ring (15) clamp and fix the insulation part (2).

9. The connector of claim 8, wherein the fixing ring (15) is provided with a groove (151) for positioning the insulating part (2) at an inner hole of an abutting end surface of the outer shell (14), the groove (151) is annular, the outer diameter of the groove (151) corresponds to the outer diameter of the insulating part (2), the depth of the groove (151) corresponds to the height of the insulating part (2), the insulating part (2) is sleeved in the groove (151), one end surface of the insulating part (2) abuts against the fixing ring (15), and the other end of the insulating part (2) abuts against the outer shell (14).