CN217215362U - Multi-pin grounded backplane connector adapter - Google Patents

Abstract

The utility model discloses a multi-pin grounded backplane connector adapter, which comprises an H-shaped insulating shell, a plastic connecting piece and a plurality of metal contact pins, wherein the plastic connecting piece is used for fixing the metal contact pins, the metal contact pins penetrate through the plastic connecting piece, three metal contact pins are arranged into a group of contact pin groups, namely two short pins and a long pin, the two short pins are a pair of differential signal pairs, and the long pin is grounded; and a plurality of groups of the contact pin groups are sequentially laid on the plastic connecting piece. The utility model discloses an every contact pin group of design all has the adapter of a long needle ground connection for the backplane connector who is connected with it has had sufficient ground wire and has connected and shielding measure. Through the design of the length of the metal contact pin on the expanded side of the butt joint, the emission efficiency is reduced, and the influence of high-frequency signals is reduced.

Description

Multi-pin grounded backplane connector adapter

Technical Field

The utility model relates to a connector technical field, concretely relates to backplane connector adapter, in particular to backplane connector adapter of many needles ground connection.

Background

Backplane connectors (backpanel connectors) are a type of connector commonly used in large-scale communication equipment, ultra-high performance servers and supercomputers, industrial computers, and high-end storage devices. The high-speed backplane connector is designed for high-speed applications, and is a part for performing physical connection between modules in a typical electronic system, and a complex system depends on wires, traces and connectors on a backplane to process a large amount of high-speed data streams. The high-speed backplane connector plays an important role in communication among a plurality of backplane modules, and is used at more than 1 Gbps. High-speed backplane connectors are widely used in communication technologies, such as signal transmission in servers and switches, and have important research value.

The design of high-speed backplane connectors in the market mainly needs to solve the problems of noise, signal bandwidth, signal loss and the like. Many backplane connectors currently on the market that control impedance characteristics can achieve data rates of 3Gbps, and such connectors additionally provide shielding to help designers control system noise and crosstalk. More advanced methods are still being investigated in order to reduce noise and impedance mismatches common in older connectors. For example, with some impedance controlled connectors dedicated to high speed data, with adequate ground connection and shielding measures. Further, in a high-speed communication system, a single-ended signal is replaced with a differential signal, meaning that the signal is expressed by a voltage difference of a pair of dedicated lines. Thus, two different wires are required for each differential signal, but the noise isolation performance (crosstalk and EMI prevention) is better and the operating voltage is lower.

The back plate connector adapter both ends are used for connecting switching extension female terminal and the female terminal of mutually supporting respectively, consequently can solve above technical problem through carrying out technical transformation to back plate connector adapter.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is that: in order to solve the technical problem, the utility model provides a back plate connector adapter of many needles ground connection satisfies the product operation requirement.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a multi-pin grounded backplane connector adapter is characterized in that two ends of the adapter are respectively used for connecting a switching extension female terminal and a mating female terminal, and the adapter comprises an H-shaped insulating shell, a plastic connecting piece and a plurality of metal contact pins, wherein the H-shaped insulating shell is provided with through holes for clamping the plastic connecting piece; the plastic connecting piece is used for fixing the metal contact pins, the metal contact pins penetrate through the plastic connecting piece, and the metal contact pins are not directly connected with each other to form a metal plastic integrated piece; the three metal contact pins are arranged into a group of contact pin groups, namely two short pins and a long pin, wherein the two short pins are a pair of differential signal pairs, and one long pin is grounded; a plurality of contact pin groups can be designed on the plastic connecting piece.

Furthermore, the contact pin group can flexibly expand the group number according to the requirements of the jacks of the female terminals on two sides.

Furthermore, a metal contact pin A is added on the outermost side of the metal contact pins on the switching expansion side and serves as a grounding pin, and the metal contact pins A do not extend out of the mutual matching side, so that the number of the switching expansion side pins is increased by one, and the signal transmission quality is improved.

Furthermore, a metal contact pin B is added on the outermost side of the metal contact pins on the mutual matching side and serves as a grounding pin, and the metal contact pin B does not extend out of the transfer expansion side, so that the number of the mutual matching side pins is increased by one, and the signal transmission quality is improved.

Further, a plurality of through-holes have been seted up on the insulating casing for the joint is a plurality of the plastic connecting piece, adjacent two the joint interface A of through-hole is each other reverse, the plastic connecting piece divide into two kinds, plastic connecting piece A and plastic connecting piece B promptly, the joint interface B of plastic connecting piece A and plastic connecting piece B also each other is reverse for match with the joint interface A of through-hole, in order to guarantee the plastic connecting piece is firm to be fixed on the insulating casing.

Furthermore, the length of the metal contact pin extending out of the transfer expansion side of the plastic connecting piece is preferably 3-5 mm, and particularly preferably 3 mm, so as to reduce the influence of high-frequency signals.

Furthermore, the metal contact pin stretches out the front end of the plastic connecting piece switching expansion side and protrudes outwards, when the metal contact pin is inserted into the switching expansion female terminal, the elastic connecting component in the switching expansion female terminal jack is clamped, and therefore the short metal contact pin can be effectively connected with the elastic connecting component.

Furthermore, conductive adhesive is added into the plastic to form conductive plastic strips, the front and back surfaces of the long needle are respectively connected by the conductive plastic strips, and the metal sheet is laid on the surface of the plastic connecting piece and is in contact with the conductive plastic strips, so that the signal transmission quality can be better improved, and different transmission quality requirements can be met.

The utility model relates to a back panel connector adapter of many needles ground connection's beneficial effect is:

(1) by designing each contact pin group with a transition joint with a long pin grounded, the backplane connector connected with the contact pin group is provided with sufficient ground wire connection and shielding measures.

(2) Backplane connectors have evolved to be completely shielded and operate like symmetric cables for better impedance control, reduced crosstalk, and improved coupling between differential signals. Differential signal pairs must arrive at the transmission destination at the same time, so the length of the conductive lines must be designed to minimize the difference in signal pair length and signal skew. Particularly, in the high-speed backplane connector, the higher the signal frequency is, the shorter the metal contact pin on the switching expansion side is, and the lower the transmission efficiency is. Therefore, the influence of STUB on a high-frequency signal can be reduced by designing the length of the metal contact pin on the switching expansion side as short as possible.

(3) The length of the metal contact pin is shortened, the problem of poor contact of the female terminal expanded by the switching can be caused, the structure that the metal contact pin stretches out of the front end of the plastic connecting piece switching expansion side and protrudes outwards is designed, and the short metal contact pin can effectively clamp the elastic connecting assembly.

Drawings

Fig. 1 is a schematic view of the multi-pin grounding structure of the plastic connector B of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is the installation schematic diagram of the conductive plastic and the metal sheet of the present invention.

Fig. 4 is a schematic diagram of the connection between the switching expansion end and the mating end of the plastic connector B of the present invention.

The attached drawings are as follows:

1-switching extension female terminal, 11-elastic connecting component, 2-mutual matching female terminal, 3-H type insulating shell, 31-through hole, 4-plastic connecting component, 41-plastic connecting component A, 42-plastic connecting component B, 5-metal contact pin, 51-short pin, 52-long pin, 53-metal contact pin A, 6-conductive plastic strip and 7-metal sheet.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1-3, the first embodiment is a multi-pin grounded backplane connector adapter, both ends of the multi-pin grounded backplane connector adapter are respectively used for connecting a switching extension female terminal 1 and an interworking female terminal 2, and the multi-pin grounded backplane connector adapter comprises an H-shaped insulating housing 3, a plastic connector 4 and a plurality of metal contact pins 5, wherein the H-shaped insulating housing 3 is provided with a plurality of through holes 31 for clamping the plastic connector 4, the card interfaces a of two adjacent through holes 31 are opposite to each other, the plastic connector 4 is divided into two types, namely a plastic connector a 41 and a plastic connector B42, and the card interfaces B thereof are also opposite to each other for matching with the card interfaces a of the through holes 31, so as to ensure that the plastic connector 4 is stably fixed on the H-shaped insulating housing 3. The plastic connecting piece 4 is used for fixing the metal contact pins 5, the metal contact pins 5 penetrate through the plastic connecting piece 4, and the metal contact pins 5 are not directly connected with each other to form a metal-plastic integrated piece; the three metal contact pins 5 are arranged as a group of contact pins, which are two short pins 51 and a long pin 52, respectively, the two short pins 51 are a pair of differential signal pairs, and the long pin 52 is grounded. Conductive adhesive is added into the plastic to form conductive plastic strips 6, the front and back surfaces of the long needles 52 are respectively connected by the conductive plastic strips 6, and the metal sheets 7 are laid on the surface of the plastic connecting piece 4 and are in contact with the conductive plastic strips 6, so that the signal transmission quality can be better improved, and different transmission quality requirements can be met. A plurality of groups of contact pin groups can be designed on one plastic connecting piece 4, the number of the contact pin groups can be flexibly expanded according to the requirements of the jacks of the female terminals on two sides, and the application is flexible. A metal contact pin A53 is added on the outermost side of the metal contact pins 5 on the switching expansion side and serves as a grounding pin, and the metal contact pins A53 do not extend out of the mutual matching side, so that the number of the switching expansion side pins is increased by one, and the signal transmission quality is effectively improved.

As shown in fig. 4, the difference between the second embodiment and the multi-pin grounded backplane connector in the first embodiment is that the length of the metal contact pin 5 extending out of the extended side of the plastic connector 4 is preferably 3 mm to reduce the high frequency signal effect. The metal contact pin 5 stretches out the front end of the switching expansion side of the plastic connecting piece 4 and protrudes outwards, when the metal contact pin 5 is inserted into the switching expansion female terminal 1, the elastic connecting component 11 in the jack of the switching expansion female terminal 1 is clamped, and the shorter metal contact pin 5 can be effectively connected with the elastic connecting component 11.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (8)

1. A multi-pin grounded backplane connector adapter is characterized by comprising an H-shaped insulating shell, a plastic connecting piece and a plurality of metal contact pins, wherein the H-shaped insulating shell is provided with a plurality of through holes for clamping the plastic connecting piece, the clamping interfaces A of two adjacent through holes are opposite, the plastic connecting piece is divided into two types, namely a plastic connecting piece A and a plastic connecting piece B, and the clamping interfaces B of the plastic connecting piece A and the plastic connecting piece B are opposite and are used for being matched with the clamping interfaces A of the through holes; the plastic connecting piece is used for fixing the metal contact pins, the metal contact pins penetrate through the plastic connecting piece, and the metal contact pins are not directly connected with each other to form a metal plastic integrated piece; the three metal contact pins are arranged into a group of contact pin groups, namely two short pins and a long pin, wherein the two short pins are a pair of differential signal pairs, and one long pin is grounded; and a plurality of groups of the contact pin groups are sequentially laid on the plastic connecting piece.

2. The multi-pin grounded backplane connector adapter of claim 1, wherein said set of contact pins is expanded in number according to the requirements of said adapting expanded female terminal and said mating female terminal receptacle.

3. A multi-pin grounded backplane connector adapter according to claim 1 or 2, wherein a metal contact pin a is added as a ground pin to an outermost one of said plurality of metal contact pins on the transition expansion side, said metal contact pin a not protruding on the mating side.

4. A multi-pin grounded backplane connector as claimed in claim 1 or 2, wherein a metal contact pin B is added to an outermost one of said plurality of metal contact pins on the mating side as a ground pin, said metal contact pin B not protruding on the transition expansion side.

5. The multi-pin grounded backplane connector adapter of claim 1, wherein the length of said metal contact pins extending beyond said transfer expansion side of said plastic connector is 3-5 mm.

6. The multi-pin grounded backplane connector adapter of claim 5, wherein the length of said metal contact pins extending beyond said transfer extension side of said plastic connector is 3 mm.

7. The multi-pin grounding backplane connector adapter of claim 5 or 6, wherein said metal contact pins protrude outwardly from the front end of said plastic connector transition expansion side to engage with said resilient connecting members in said transition expansion female terminal insertion holes when said metal contact pins are inserted into said transition expansion female terminals.

8. The multi-pin grounded backplane connector adapter of claim 1, wherein a plurality of said long pins are connected to each other on opposite sides by conductive plastic strips, respectively, and wherein a metal sheet is laid on a surface of said plastic connector, said metal sheet being in contact with said conductive plastic strips.

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