TWM630778U - Grounding structure of electrical connector - Google Patents

Abstract

A grounding structure of an electrical connector, comprising: an insulating body, a middle iron sheet, and upper row terminals and lower row terminals positioned on the insulating body and forming a relative up-down relationship, wherein the middle iron sheet is located on the upper row terminal and the lower row terminal between; the upper row of terminals has an upper ground terminal, the upper ground terminal has a first contact part at the front end, a first welding part at the rear end, and a first fixing part located between the first contact part and the first welding part, the The first fixing part is fixedly connected with the insulating body, and the first fixing part is provided with a first overlapping part protruding downward; the lower row of terminals has a lower ground terminal, and the lower ground terminal has a second contact part at the front end, a second welding part at the rear end and a second fixing part located between the second contact part and the second welding part, the second fixing part is fixedly connected with the insulating body, and the second fixing part is provided with a second overlapping part; And the first overlapping portion protrudes downward and forms a conductive connection with the second overlapping portion, and the middle iron sheet provides an escape space for the first overlapping portion to protrude downward.

Description

A grounding structure of an electrical connector

This creation belongs to the technical field of electrical connectors, especially to data transmission type TYPE-C connectors.

With the development of science and technology, all kinds of electronic products emerge in an endless stream, and a variety of corresponding connectors for different electronic products emerge as the times require. The USB connector is one of the most widely used and popular electrical connectors. Devices are equipped with USB connectors. At present, the USB TYPE-C connector can only transmit power in one direction due to its double-sided pluggable interface. Unlike the old USB port, the power transmission of the TYPE-C port is bidirectional. , notebook and other mobile devices, can be used for charging, data transmission and other purposes.

The new-generation USB TYPE-C connector is smaller in size and has higher requirements on mechanical properties and electrical properties. In order to ensure the reliability of the product to transmit large currents and reduce the crosstalk of various conductive terminals during signal transmission, the grounding structure is designed. It has become a matter of concern to the industry. However, due to the small size of the new-generation USB TYPE-C connector, the large number of terminals, and the limited space, the design of the grounding structure will increase the difficulty of assembling and manufacturing the electrical connector, and it is very easy to cause defective products. Therefore, the applicant proposes a The grounding structure of the electrical connector is the present application.

The purpose of this creation is to provide a grounding structure of an electrical connector, which can well solve the problems of the prior art, has a simple structure, and is convenient to manufacture and assemble.

In order to achieve the above purpose, this creation adopts the following technical solutions: A grounding structure of an electrical connector, which includes an insulating body, a middle iron sheet, and upper row terminals and lower row terminals positioned on the insulating body and forming a relative up-down relationship, and the middle iron sheet is located between the upper row terminals and the lower row terminals. between; The upper row of terminals has an upper ground terminal, the upper ground terminal has a first contact part at the front end, a first welding part at the rear end, and a first fixing part located between the first contact part and the first welding part, the first fixing part The first fixing part is fixedly connected with the insulating body, and the first fixing part is provided with a first overlapping part protruding downward; The lower row of terminals has a lower ground terminal, the lower ground terminal has a second contact portion at the front end, a second welding portion at the rear end, and a second fixing portion located between the second contact portion and the second welding portion, the second fixing portion The second fixing part is fixedly connected with the insulating body, and the second fixing part is provided with a second overlapping part; The first overlapping portion protrudes downward and forms a conductive connection with the second overlapping portion, and the middle iron sheet provides an escape space for the first overlapping portion to protrude downward.

The above solution further is that the first overlapping portion is an elastic piece extending from the first fixing portion, the second overlapping portion is a platform extending from the second fixing portion, and the first overlapping portion and the second overlapping portion are connected. A surface-to-surface conductive connection is formed between them.

The above solution further is that the first fixing part is further provided with a first grounding leg that protrudes outward, the first grounding leg extends toward the arrangement direction of the upper row of terminals and protrudes from the insulating body, and the first grounding leg is used for External ground connection.

In the above solution, the upper ground terminals are arranged in front and/or rear positions according to the arrangement direction of the upper row of terminals, and the number and distribution positions of the lower ground terminals are matched with the upper ground terminals.

The above solution further is that the upper row of terminals is punched and formed on the first sheet of material and is integrally injection-molded with the insulating body; the lower row of terminals is punched and formed on the second sheet of material and is injection-molded with the insulating body. into one.

In the above solution, the middle iron sheet is further provided with a second grounding leg, the second grounding leg protrudes from the insulating body and is connected to the outer iron shell on the electrical connector.

In the present invention, the upper ground terminal is provided with a first overlapping portion protruding downward, and the lower ground terminal is provided with a second overlapping portion. After assembly, the first overlapping portion protrudes downward and is connected with the second overlapping portion. The overlapped part forms a conductive connection to realize the short-circuit connection between the upper ground terminal and the lower ground terminal, which is equivalent to increasing the area of the ground terminal. This setting can make the ground terminal play a better shielding effect and reduce the signal transmission of the signal terminal. The crosstalk generated in the process improves the crosstalk, meets the high frequency, and has a simple structure, which is convenient for production and assembly. Affects the layout between terminals, has strong versatility, and can better meet customer needs. The grounding structure is stable and reliable, ensuring the quality of the electrical connector, improving the performance and service life, and meeting the requirements of the new generation of USB TYPE-C connectors.

The conception, specific structure and technical effects of the present creation will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the present creation.

It should be noted that in the description of this creation, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or The terminology of the positional relationship is based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as Restrictions on this creation. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features.

1, 2, 3, and 4 are schematic diagrams of a preferred embodiment of the present invention. The present invention relates to a grounding structure for an electrical connector, which includes an insulating body 1, a middle iron sheet 4, and a grounding structure positioned on the insulating body. 1 and form the upper row of terminals 2 and the lower row of terminals 3 in a relative up-down relationship, and the middle iron sheet 4 is located between the upper row of terminals 2 and the lower row of terminals 3; the arrangement of the upper row of terminals 2 and the lower row of terminals 3 satisfies the external connector The positive and negative plug-in matching, with the convenience of use for both positive and negative plug-in. The middle iron sheet 4 has a shielding effect, which is used to improve the electrical performance of the upper row of terminals and the lower row of terminals, and to meet the requirements of high frequency and other applications. The upper row of terminals 2 has an upper ground terminal 21 , the upper ground terminal 21 has a first contact portion 211 at the front end, a first welding portion 212 at the rear end, and a first contact portion 211 and the first welding portion 212 between the first contact portion 211 and the first welding portion 212 The fixing portion 213 is fixedly connected with the insulating body 1 to stabilize the upper ground terminal 21 on the insulating body 1 , and the first fixing portion 213 is provided with a downwardly protruding first overlapping portion 214 . The lower row of terminals 3 has a lower ground terminal 31 having a second contact portion 311 at the front end, a second welding portion 312 at the rear end, and a second contact portion 311 and the second welding portion 312 between the second contact portion 311 and the second welding portion 312 The fixing part 313 , the second fixing part 313 is fixedly connected with the insulating body 1 , and the second fixing part 313 is provided with a second overlapping part 314 . The first lap portion 214 protrudes downward and forms a conductive connection with the second lap portion 314 , and the middle iron piece 4 provides an escape space 41 for the first lap portion 214 to protrude downward. In this way, the short-circuit connection between the upper ground terminal and the lower ground terminal is realized, which is equivalent to increasing the area of the ground terminal. This arrangement can make the ground terminal play a better shielding effect and reduce the crosstalk generated by the signal terminal during the signal transmission process. , improve the crosstalk, meet the high frequency, and the structure is simple, easy to manufacture and assemble.

Referring to FIGS. 2 and 3 , in this embodiment, in order to facilitate production and assembly, preferably, the upper row of terminals 2 is punched and formed on the first sheet of plate and is integrally injection-molded with the upper part of the insulating body 1 ; The lower row of terminals 3 is punched and formed on the second sheet and is integrally injection-molded with the lower part of the insulating body 1; 3 and the middle iron sheet 4 are combined together. The first overlapping portion 214 is an elastic piece extending from the first fixing portion 213 and has a downward trend; the second overlapping portion 314 is a platform extending from the second fixing portion 313 , and the first overlapping portion 214 is connected to the A surface-connected conductive connection is formed between the second overlapping portions 314 to obtain a better short-circuit effect. In this embodiment, there are two upper ground terminals 21 , which are arranged at the front and rear positions according to the arrangement direction of the upper row of terminals 2 . grounding requirements. During the assembly process of the upper row of terminals and the lower row of terminals, the short-circuit connection of the upper ground terminal and the lower ground terminal can be automatically realized. The ground connection is relatively simple and reliable, and does not affect the layout between the terminals. client needs. The upper grounding terminal and the lower grounding terminal are short-circuited inside the connector, not exposed and not damaged by external force, and the effectiveness and durability of the short-circuit connection are ensured through elastic lap connection, which also optimizes the product assembly process and improves the product assembly quality. .

Referring to FIGS. 1 , 2 , 3 and 4 , in this embodiment, the first fixing portion 213 is further provided with a protruding first grounding leg 215 , and the first grounding leg 215 faces the upper row of terminals 2 . The first grounding legs 215 are used for external ground connection. As shown in FIG. 4 , the first grounding legs 215 are connected to the outer iron shell 5 of the connector. Similarly, the middle iron sheet 4 is provided with a second grounding leg 42 , the second grounding leg 42 protrudes from the insulating body 1 and is connected to the outer iron shell 5 on the electrical connector to further improve the strength of the middle iron sheet 4 . Effective, reduce the mutual interference between the upper row of terminals 2 and the lower row of terminals 3.

In the present invention, the upper ground terminal 21 is provided with a first overlapping portion 214 protruding downward, and the lower ground terminal 31 is provided with a second overlapping portion 314. After assembly, the first overlapping portion protrudes downward. And form a conductive connection with the second lap joint to realize the short-circuit connection between the upper ground terminal 21 and the lower ground terminal 31, which is equivalent to increasing the area of the ground terminal. The crosstalk generated by the signal terminals in the signal transmission process is improved, the crosstalk is improved, and the high frequency is satisfied. The structure is simple, which is convenient for production and assembly. During the assembly process of the upper row of terminals and the lower row of terminals, the upper ground terminal and the lower ground terminal can be automatically realized. The terminals are short-circuited, and the layout between the terminals is not affected. It has strong versatility and can better meet customer needs. The grounding structure is stable and reliable, ensuring the quality of the electrical connector, improving the performance and service life, and meeting the requirements of the new generation of USB TYPE-C connectors.

Of course, the above creation has been described in detail in conjunction with the embodiments, only to illustrate the technical concept and characteristics of this creation, and its purpose is to let people who are familiar with this technology understand the content of this creation and implement it. Therefore, according to the spirit of this creation Substantially equivalent changes or modifications should be covered within the scope of protection of this creation.

1: Insulation body 2: Upper row terminals 21: Upper ground terminal 211: First Contact Department 212: The first welding part 213: The first fixed part 214: The first lap 215: First ground leg 3: Lower row terminals 31: Lower ground terminal 311: Second contact part 312: Second welding part 313: Second fixed part 314: Second lap 4: Medium iron sheet 41: Avoid Space 42: Second ground leg 5: Outer iron shell

Fig. 1 is the structure schematic diagram of the preferred embodiment of the creation; Fig. 2 is the structural exploded schematic diagram of the embodiment of Fig. 1; FIG. 3 is a schematic diagram of the combination relationship between the upper row of terminals and the lower row of terminals in the embodiment of FIG. 1; and FIG. 4 is a schematic view of the implementation structure (combined outer iron shell) of the embodiment of FIG. 1 .

1: Insulation body

2: Upper row terminals

21: Upper ground terminal

214: The first lap

215: First ground leg

3: Lower row terminals

314: Second lap

4: Medium iron sheet

42: Second ground leg

Claims (6)

A grounding structure of an electrical connector is characterized in that it includes an insulating body, a middle iron sheet, and upper row terminals and lower row terminals positioned on the insulating body and forming a relative up-down relationship, and the middle iron sheet is located on the upper row of terminals and the lower row of terminals; The upper row of terminals has an upper ground terminal, the upper ground terminal has a first contact portion at the front end, a first welding portion at the rear end, and a first fixing portion located between the first contact portion and the first welding portion. A fixing portion is fixedly connected with the insulating body, and the first fixing portion is provided with a first overlapping portion protruding downward; The lower row of terminals has a lower ground terminal, the lower ground terminal has a second contact portion at the front end, a second welding portion at the rear end, and a second fixing portion located between the second contact portion and the second welding portion, the first Two fixing parts are fixedly connected with the insulating main body, and the second fixing part is provided with a second overlapping part; and The first overlapping portion protrudes downward and forms a conductive connection with the second overlapping portion, and the middle iron sheet provides an escape space for the first overlapping portion to protrude downward. The grounding structure of the electrical connector according to claim 1, wherein the first overlapping portion is an elastic piece extending from the first fixing portion, and the second overlapping portion is an extending structure on the second fixing portion a platform, and a surface-connected conductive connection is formed between the first overlapping portion and the second overlapping portion. The grounding structure of an electrical connector according to claim 1 or 2, wherein the first fixing portion is further provided with a first grounding leg protruding outward, and the first grounding leg faces the arrangement direction of the upper row of terminals Extending and protruding from the insulating body, the first grounding leg is used for external grounding connection. The grounding structure of an electrical connector according to claim 1, wherein the upper grounding terminals are arranged at front and/or rear positions according to the arrangement direction of the upper row of terminals, and the number and distribution positions of the lower grounding terminals are the same as those of the lower grounding terminals. The upper ground terminal is matched. The grounding structure of an electrical connector according to claim 1, wherein the upper row of terminals is punched and formed on a first sheet of material and is integrally injection-molded with the insulating body; the lower row of terminals is formed on the second sheet of The board is punched and formed into one piece with the insulating body. The grounding structure of the electrical connector according to claim 1, wherein the middle iron sheet is provided with a second grounding leg, the second grounding leg protrudes from the insulating body and is connected to the outer iron shell on the electrical connector .

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