CN104241971B - The electric coupler component and its socket of high impedance - Google Patents

Abstract

The invention relates to the field of electrical connectors, in particular to a high-impedance electrical connector assembly and a socket thereof. The electrical connector assembly includes a plug and a socket. The plug includes a plug insulator and a plug contact fixedly assembled on the plug insulator. The socket includes a socket insulator and a socket contact fixedly assembled on the socket insulator. The socket contact is assembled on the socket insulator. The mounting hole is provided and its plug-in end extends forward to outside the corresponding mounting hole. The mounting hole is a blind hole. The socket contact passes through and is fixed on the blind end of the mounting hole. The wall of the mounting hole and the socket There is a clearance fit between the outer peripheral surfaces of the corresponding parts of the contact. The socket insulator is fixed with an anti-swing insulator at the blind end of the mounting hole to prevent the socket contact from swinging. The anti-swing insulator is provided with a limit corresponding to the socket contact. bit hole. The electrical connector assembly can improve the differential characteristic impedance without changing the diameter of the original contact piece.

Description

High impedance electrical connector assembly and its socket

technical field

The invention relates to the field of electrical connectors, in particular to a high-impedance electrical connector assembly and a socket thereof.

Background technique

In some application fields of electrical connectors, the differential characteristic impedance of the corresponding system is generally 100Ω. In order to ensure the integrity of the differential transmission signal, it is required that the differential characteristic impedance of the electrical connector must match the differential characteristic impedance of the system. The differential characteristic impedance after the connector plug and the socket are mated must reach 100Ω. According to the definition of differential characteristic impedance, when the insulator material and contact spacing are determined, the current solution is to reduce the diameter of the mating part with the insulator, so as to increase the differential characteristic impedance of the electrical connector to meet the requirements of the system. matching requirements.

Although the above measures can realize the 100Ω differential characteristic impedance of the electrical connector, they also bring corresponding disadvantages at the same time. First of all, after the partial diameter of the contact piece is thinned, it directly leads to a decrease in its current carrying capacity, which increases the heat generation of the electrical connector; secondly, it is obvious that when the partial diameter of the contact piece is thinned, it is bound to decrease. The strength of the contact, which can make the contact highly susceptible to breaking off from the interface with the insulator. Obviously, it is not worth the candle to increase the differential characteristic impedance of the electrical connector through the above measures.

However, even in this way, the above-mentioned measures cannot be applied to some contacts with internal structures such as inner sleeves and wire spring wires, because the outer diameter of this type of contacts must meet a certain value, which will result in the outer diameter of the contacts The diameter cannot be reduced indefinitely, so that the differential characteristic impedance of the electrical connector using the middle contact still cannot meet 100Ω.

To sum up, the structure of increasing the differential characteristic impedance of the contacts used in the current electrical connectors has the problems of poor compatibility and versatility, which makes the current electrical connectors either have problems of low power and poor strength, or exist The problem of low differential characteristic impedance.

Contents of the invention

The purpose of the present invention is to provide a high-impedance electrical connector assembly to increase the differential characteristic impedance of the electrical connector assembly without reducing the diameter of the contact.

At the same time, the purpose of the present invention is also to provide the socket of the above-mentioned electrical connector assembly.

In order to solve the above-mentioned problems, the high-impedance electrical connector assembly adopts the following technical scheme: the high-impedance electrical connector assembly includes a plug and a socket with the front end as the insertion end, and the plug includes a plug insulator and a plug fixedly assembled on the plug insulator The socket includes a socket insulator and a socket contact fixedly assembled on the socket insulator. The socket contact is assembled in the mounting hole provided on the socket insulator and its plug-in end extends forward beyond the corresponding mounting hole. Installation The hole is a blind hole, the socket contact piece passes through and is fixed on the blind end of the mounting hole, the hole wall of the mounting hole and the outer peripheral surface of the corresponding part of the socket contact piece have a clearance fit, and the socket insulator is at the blind end of the mounting hole An anti-swing insulator for preventing the deflection of the socket contact is fixedly arranged, and a limit hole corresponding to the socket contact is provided on the anti-swing insulator.

The socket insulator and the anti-swing insulator are fixedly assembled together through slots and protrusions which are respectively arranged on the two and are interferingly plugged together.

The socket insulator is also provided with process holes between adjacent mounting holes, and the process holes are blind holes with closed front ends.

The socket also includes a socket housing in which the socket insulator is fixedly fitted.

The plug contact is a pin, the socket contact is a socket, and the plug insulator is provided with an insertion hole for the socket contact to be inserted. The plug contact is located in the corresponding insertion hole. When the plug contact and the socket contact are mated , the hole wall of the mounting hole is in clearance fit with the outer peripheral surface of the socket contact.

The socket adopts the following technical scheme: the socket, the socket takes the front end as the plug-in end, which includes a socket insulator and a socket contact fixedly assembled on the socket insulator, and the socket contact is assembled in the mounting hole provided on the socket insulator and its plug The connecting end extends forward to the outside of the corresponding mounting hole, the mounting hole is a blind hole, the socket contact passes through and is fixed on the blind end of the mounting hole, the hole wall of the mounting hole and the outer peripheral surface of the corresponding part of the socket contact The socket insulator is fixed with an anti-swing insulator at the blind end of the mounting hole to prevent the socket contact from swinging, and the anti-swing insulator is provided with a limit hole corresponding to the socket contact.

The socket insulator and the anti-swing insulator are fixedly assembled together through slots and protrusions which are respectively arranged on the two and are interferingly plugged together.

The socket insulator is also provided with process holes between adjacent mounting holes, and the process holes are blind holes with closed front ends.

The socket also includes a socket housing in which the socket insulator is fixedly fitted.

The socket contact is fixedly fitted on the blind end of the mounting hole of the socket insulator in a piercing manner.

In this high-impedance electrical connector assembly, since the socket contact is fitted in the mounting hole provided on the socket insulator and its plug-in end extends forward to out of the corresponding mounting hole, the socket contact passes through and is fixed On the blind end of the mounting hole, at the same time, there is a clearance fit between the wall of the mounting hole and the outer peripheral surface of the corresponding part of the socket contact. The deflection of the socket contact is limited by the anti-swing insulator, so it is used to fix the socket contact. The parts only have socket insulator and anti-swing insulator. The part of the socket insulator used to fix the socket contact is limited to the blind end of the mounting hole, and the mating part of the anti-sway insulator and the socket contact is limited to the hole wall of its limiting hole. The part of the contact located in the mounting hole is directly in contact with the air. According to the definition of differential characteristic impedance, when the insulator material and the distance between contacts are determined, the differential characteristic impedance can be improved by reducing the dielectric constant of the dielectric material, while The dielectric constant of air is relatively the smallest, and in the socket of the high-impedance electrical connector assembly, the medium around the socket contact is a mixed medium of air and insulating material, so the electrical connector assembly can be in The differential characteristic impedance is improved without changing the diameter of the original contact piece.

Furthermore, the use of bumps and slots to fix the socket insulator and the anti-swing insulator has the advantages of simple structure and convenient assembly; due to the air cavity (cavity in the mounting hole) formed between the socket insulator and the anti-swing insulator The sealing level If the socket is lower, water vapor will enter the air cavity between the two during the working process of the socket, and it will not be easily discharged. The setting of the process hole can facilitate the discharge of water vapor, and at the same time reduce the dielectric constant of the medium and improve the socket. The characteristic impedance at the junction of the contact and the socket insulator; the socket shell plays the role of protecting the socket insulator and the anti-swing insulator and can further combine them; after the hole wall of the mounting hole is fitted with the outer peripheral surface of the socket contact Therefore, an air cavity can be formed at the periphery of the insertion part of the plug contact and the socket contact, and the differential characteristic impedance of the electrical connector can be further reduced.

Description of drawings

Figure 1 is a front view of a high-impedance electrical connector assembly;

Fig. 2 is a bottom view of a high-impedance electrical connector assembly;

Fig. 3 is the A-A sectional view of Fig. 2;

4 is a perspective view of a high-impedance electrical connector assembly;

FIG. 5 is an exploded view of a high-impedance electrical connector assembly;

6 is a cross-sectional view of a high-impedance electrical connector assembly;

Figure 7 is an exploded view of the socket.

detailed description

An embodiment of a high-impedance electrical connector assembly is shown in FIGS. 1-6. The electrical connector assembly includes a plug and a socket, each of which has a front end as a plugging end.

The plug includes a plug housing 11, a plug insulator 12, and a plug contact 13 fixedly assembled on the plug insulator 12. In this embodiment, the plug contact 13 is a pin, and the plug insulator 12 is provided with a plug corresponding to the plug contact 13. Socket hole 14, the plug contact 13 is located in the socket hole opposite to it. In addition, in this embodiment, the plug insulator 12 also has a process hole at a position between two adjacent socket holes. This process hole is referred to as the plug process hole 15.

The socket contact includes a socket housing 16 , a socket insulator 17 , a socket contact 18 and an anti-swing insulator 19 . The socket insulator 17 is provided with a mounting hole 101 corresponding to the socket contact 18, and the mounting hole 101 is a blind hole. In this embodiment, the front end of the mounting hole 101 is a blind end, and the socket contact 18 is a jack, and its front end is forward. Extending beyond the corresponding mounting hole, the rear end is provided with pins. In this embodiment, the socket contact 18 is fixedly assembled in the corresponding mounting hole by piercing (a common technique in this field, which will not be described here). On the blind end of the mounting hole 101, the hole wall of the mounting hole 101 is fitted with the outer peripheral surface of the corresponding socket contact 18. The anti-swing insulator 19 is plate-shaped and has a limit hole corresponding to the socket contact 18. In this embodiment , the anti-swing insulator 19 is located at the rear end of the socket insulator 17, which is assembled on the socket insulator 17 from back to front after the socket contact 18 is pierced from front to back and assembled on the socket insulator 17, wherein the socket The rear end surface of the insulator 17 is provided with a slot 20, and the anti-swing insulator 19 is provided with a bump 21 corresponding to the slot (in this embodiment, the bump is columnar), and the socket insulator 17 and the anti-swing insulator 19 are conveniently connected. They are fixed together through the interference fit between the protrusions 21 and the corresponding slots 20 . In addition, in this embodiment, the socket insulator 17 is also provided with a process hole at a position between two adjacent mounting holes. Here, the process hole on the socket insulator is called socket process hole 22, and the socket process hole is Blind hole with closed front end.

What needs to be emphasized below is that in this embodiment, the outer diameter of the part of the socket contact 18 that is used to be mated with the plug contact 13 is smaller than the inner diameter of the corresponding socket hole, which makes when the plug contact 13 is connected to the socket After the contacts 18 are mated, there is a clearance fit between the wall of the insertion hole and the outer peripheral surface of the corresponding socket contact.

In other embodiments of the high-impedance electrical connector assembly, the socket contacts can also be set as pins, and after the socket contacts pass through the blind ends of the corresponding mounting holes, they can also be clamped, interference fit, etc. Secures to the blind end of the mounting hole.

The embodiment of the socket is shown in FIG. 7 , the structure of the socket is the same as the structure of the socket in the embodiment of the above-mentioned high-impedance electrical connector assembly, and will not be repeated here.

Claims (10)

1. the electric coupler component of high impedance, including plug and socket each with front end as inserted terminal, plug includes that plug is exhausted Edge body and the Plug contact being securely fitted on plug insulator, socket includes socket insulator and to be securely fitted in socket exhausted Socket contact on edge body, it is characterised in that during socket contact is assemblied in socket insulator set installing hole and Its inserted terminal is extended forwardly into outside corresponding installing hole, and installing hole is blind hole, and socket contact is passed through and is fixed on installation On the cecum in hole, between the outer peripheral face of the hole wall and socket contact corresponding site of installing hole, gap coordinates, in socket insulator It is fixedly installed at the cecum of installing hole for preventing the anti-sway insulator of socket contact beat, anti-sway insulator to be provided with Spacing hole corresponding with socket contact.

2. the electric coupler component of high impedance according to claim 1, it is characterised in that socket insulator and anti-sway insulation Body is by being divided into the plug-in slot of on the two, interference together with projection fixing assembling.

3. the electric coupler component of high impedance according to claim 1, it is characterised in that adjacent in socket insulator Fabrication hole is additionally provided between installing hole, fabrication hole is the blind hole of front end closing.

4. the electric coupler component of high impedance according to claim 1, it is characterised in that socket also includes Socket casing, The socket insulator is securely fitted in Socket casing.

5. the electric coupler component of the high impedance according to claim 1-4 any one claim, it is characterised in that plug Contact is contact pin, and socket contact is jack, and plug insulator is provided with the spliced eye for socket contact insertion, and plug connects Contact element is located in corresponding spliced eye, when Plug contact is plugged together with socket contact, the hole wall and female contact of spliced eye The outer peripheral face gap of part coordinates.

6. socket, with front end as inserted terminal, which includes socket insulator and is securely fitted in inserting in socket insulator the socket Seated connection contact element, it is characterised in that during socket contact is assemblied in socket insulator set installing hole and its inserted terminal to Before extend to outside corresponding installing hole, installing hole is blind hole, and socket contact is passed through and is fixed on the cecum of installing hole, Between the outer peripheral face of the hole wall and socket contact corresponding site of installing hole, gap coordinates, in the blind of installing hole in socket insulator It is fixedly installed at end for preventing the anti-sway insulator of socket contact beat, anti-sway insulator to be provided with and socket contact Corresponding spacing hole.

7. socket according to claim 6, it is characterised in that socket insulator and anti-sway insulator are by being divided into the two On, the plug-in slot of interference is together with projection fixing assembling.

8. socket according to claim 6, it is characterised in that be additionally provided between adjacent installing hole in socket insulator Fabrication hole, fabrication hole are the blind hole of front end closing.

9. socket according to claim 6, it is characterised in that socket also includes Socket casing, the socket insulator is solid Surely it is assemblied in Socket casing.

10. the socket according to claim 6-9 any one claim, it is characterised in that socket contact is puncturing Mode is securely fitted on the cecum of the installing hole of socket insulator.