CN-122000746-A - High-speed shielding connector

Abstract

The invention relates to the technical field of electric connection, in particular to a high-speed shielding connector which comprises an injection molding shell, a first shielding lower shell, a second shielding lower shell, a shielding upper cover, an insulating seat, a conductive terminal and a connecting wire, wherein the first shielding lower shell, the second shielding lower shell and the shielding upper cover form a shielding shell, the injection molding shell is provided with a fixed cavity, the fixed cavity is used for fixing the shielding shell, the inserting end of the shielding shell is exposed out of the fixed cavity, the first shielding lower shell is provided with an open cavity, two sides of the open cavity are provided with connecting vertical plates, the second shielding lower shell is arranged in the open cavity, and two sides of the second shielding lower shell are connected with the connecting vertical plates. The invention provides omnibearing electromagnetic shielding for the connection point of the inner core of the conductive terminal and the connecting wire, effectively isolates the mutual interference between the internal high-speed signal and the external complex electromagnetic environment, and ensures the signal integrity.

Inventors

• XIE CHENGZHI
• CHEN ZHUO

Assignees

• 东莞市信翰精密工业有限公司

Dates

Publication Date

20260508

Application Date

20260331

Claims (10)

1. 1. The high-speed shielding connector is characterized by comprising an injection molding shell, a first shielding lower shell, a second shielding lower shell, a shielding upper cover, an insulating seat, conductive terminals and connecting wires, wherein the first shielding lower shell, the second shielding lower shell and the shielding upper cover form a shielding shell, the injection molding shell is provided with a fixing cavity, the fixing cavity is used for fixing the shielding shell, the inserting end of the shielding shell is exposed out of the fixing cavity, the first shielding lower shell is provided with an open cavity, two sides of the open cavity are provided with connecting vertical plates, the second shielding lower shell is arranged in the open cavity, the two sides of the second shielding lower shell are connected with the connecting vertical plates, the shielding upper cover covers the upper side of the open cavity, the two sides of the shielding upper cover are connected with the connecting vertical plates to seal the open cavity to form a shielding cavity, one end of the insulating seat is arranged in the shielding cavity, the insulating seat is provided with a plurality of terminal fixing grooves along the inserting direction, the conductive terminals are arranged in the terminal fixing grooves, the connecting wires of the injection molding shell are used for fixing tail connecting wires of the housing, and the shielding shell is used for penetrating through the inner cores to connect the conductive terminals.
2. 2. The high-speed shield connector of claim 1, wherein the terminal of the injection molded housing is provided with a lead sleeve for passing through the connecting wire, injection molded clamping grooves are formed on two sides of the fixing cavity, and fixing buckles are formed on two sides of the first shield lower housing and are used for matching the injection molded clamping grooves to fix the shield shell in the fixing cavity.
3. 3. The high-speed shielding connector of claim 1, wherein an extension block is arranged at the upper end of the injection molding shell, the end part of the extension block extends to the panel of the insulating seat and is connected with the panel, the extension block is provided with a pressing buckle for locking the connector in a clamping manner during opposite insertion, the tail part of the pressing buckle is provided with a pressing part, and two sides of the injection molding shell are extended with limiting guard plates for limiting the pressing part.
4. 4. The high-speed shield connector according to claim 1, wherein the tail portion of the first shield lower case is provided with a clip, and the clip is provided with a caulking portion for caulking the connection wire to fix the connection wire.
5. 5. The high-speed shield connector of claim 1, wherein the connection riser is provided with a first connection slot and a second connection slot, the second shield lower housing is provided with a first connection buckle, the shield upper cover is provided with a second connection buckle, the first connection buckle is used for being matched with the first connection slot to fix the second shield lower housing on the first shield lower housing, and the second connection buckle is used for being matched with the second connection buckle to fix the shield upper cover on the first shield lower housing to cover the open cavity.
6. 6. The high-speed shield connector of claim 1, wherein the front end of the connecting vertical plate is provided with an assembling buckle, two sides of the insulating base are provided with assembling clamping grooves, the assembling buckle is used for being matched with the assembling clamping grooves to fix the insulating base in the shield cavity, one side of the connecting vertical plate, which is positioned on the assembling buckle, is provided with a folding part, the folding part and the bottom surface of the open cavity form a slot, two sides of the insulating base are provided with inserting parts, and the slot is used for being matched with the inserting parts and tightly matched with the inserting parts.
7. 7. The high-speed shield connector according to claim 1, wherein the second shield lower case is provided with an inner core guide groove for guiding an inner core of the connecting wire toward the terminal fixing groove of the insulating base, the inner core guide groove is provided with a plurality of inner core guide grooves, a partition plate is provided between the plurality of inner core guide grooves for partitioning, the shield upper cover is provided with an elastic pressing piece, and an end portion of the elastic pressing piece faces the inner core guide groove for pressing the inner core of the connecting wire into the inner core guide groove.
8. 8. The high-speed shield connector of claim 1, wherein the insulating base is provided with a plugging groove in the plugging direction, the end of the shield upper cover is provided with a plugging pin, and one end of the plugging pin is plugged in the plugging groove to fix the insulating base in the shield cavity.
9. 9. The high-speed shield connector of claim 1, wherein a panel is provided at an end of the insulating holder, the panel is provided with a plurality of insertion holes matching with the terminal fixing grooves, and a guide slope is provided at an opening of the insertion holes.
10. 10. The high-speed shield connector of claim 1, wherein the surface of the insulating base is provided with a terminal clamping groove, one end of the terminal clamping groove is communicated with the terminal fixing groove, the terminal clamping groove is provided with a terminal buckle, and the terminal buckle is used for fixing the conductive terminal in the terminal fixing groove.

Description

High-speed shielding connector Technical Field The invention relates to the technical field of electric connection, in particular to a high-speed shielding connector. Background Under the background of rapid development of intelligent and networking of automobiles, the demand of a vehicle-mounted electronic system for high-speed data transmission is in explosive growth. High-speed data exchange is required between devices such as an advanced driving assistance system, a vehicle-mounted information entertainment system, a high-resolution camera, a radar sensor and the like, and extremely high requirements are placed on the performance of a vehicle-mounted connector serving as a transmission node. On the one hand, complex electromagnetic interference generated by a large number of motors, electric control units, high-frequency communication modules and the like exists in the space, and the integrity of high-speed signals is seriously threatened, and on the other hand, severe working conditions such as continuous vibration, impact, temperature and humidity change and the like in the running process of a vehicle form a serious test on the mechanical stability, the sealing performance and the long-term reliability of the connector. The traditional vehicle-mounted high-speed connector has the following limitations that firstly, the shielding design is mostly a single metal shell, the problems of incomplete shielding, gap leakage and the like are easy to occur in a high-frequency range, electromagnetic interference is difficult to isolate in an omnibearing manner, secondly, the fixing mode of an internal insulator and a terminal is easy to loosen in a vibration environment, so that contact resistance is increased and even signals are interrupted, thirdly, the stress elimination design of a cable is insufficient, external force is easy to be directly transmitted to a pressing point of a conductive terminal, the risk of connection failure exists, fourthly, the whole structure is often complex, the assembly procedure is many, the production efficiency is low, the consistency is difficult to ensure, and the cost is high. Disclosure of Invention In order to solve the problems, the invention provides omnibearing electromagnetic shielding for the connection point of the conductive terminal and the inner core of the connecting wire, effectively isolates the mutual interference between the internal high-speed signal and the external complex electromagnetic environment, and ensures the high-speed shielding connector of signal integrity. The high-speed shielding connector comprises an injection molding shell, a first shielding lower shell, a second shielding lower shell, a shielding upper cover, an insulating base, a conductive terminal and a connecting wire, wherein the first shielding lower shell, the second shielding lower shell and the shielding upper cover form a shielding shell, the injection molding shell is provided with a fixing cavity, the fixing cavity is used for fixing the shielding shell, the inserting end of the shielding shell is exposed out of the fixing cavity, the first shielding lower shell is provided with an open cavity, two sides of the open cavity are provided with connecting vertical plates, the second shielding lower shell is arranged in the open cavity, the two sides of the second shielding lower shell are connected with the connecting vertical plates, the shielding upper cover covers the upper side of the open cavity, the two sides of the shielding lower shell are connected with the connecting vertical plates to seal the open cavity to form a shielding cavity, one end of the insulating base is arranged in the shielding cavity, the insulating base is provided with a plurality of terminal fixing grooves along the inserting direction, the conductive terminal is arranged in the terminal fixing grooves, the connecting wire is used for fixing the tail of the injection molding shell, and the connecting wire is used for connecting the inner core of the shielding shell with the conductive terminal. According to the technical scheme, the wiring terminal of the injection molding shell is provided with the lead sleeve, the lead sleeve is used for penetrating through the connecting wire, injection molding clamping grooves are formed in two sides of the fixing cavity, and fixing buckles are arranged on two sides of the first shielding lower shell and are used for being matched with the injection molding clamping grooves so as to fix the shielding shell in the fixing cavity. According to the technical scheme, the upper end of the injection molding shell is provided with the extension block, the end part of the extension block extends to the panel of the insulating seat and is connected with the panel, the extension block is provided with the pressing buckle, the pressing buckle is used for clamping and locking the connector during opposite insertion, the tail part of the pressing buckle is provided with the pres