CN201478487U - Improved Universal Serial Bus connector - Google Patents

Abstract

An improved universal serial bus connector mainly comprises a plurality of first terminals, a plurality of second terminals, an insulating shell and a shielding shell. The contact parts of the first terminals and the second terminals can be respectively connected with a butting connector, the tail parts of the first terminals and the second terminals can be electrically connected with a circuit board, and the extension parts of the first terminals and the second terminals are connected with the contact parts and the tail parts of the terminals. The insulating shell extends to form a tongue piece with a plurality of terminal accommodating grooves to accommodate the first terminal extending parts. The insulating shell is provided with a cap assembled on the tongue piece, and the cap receives the extending part of each second terminal. The shield shell substantially covers the tongue and the cap. The universal serial bus connector does not need to rely on an embedding forming method to assemble the terminal in the insulating shell, so that the mold structure is simpler and more durable.

Description

Improved Universal Serial Bus connector

technical field

The utility model relates to an improved universal serial bus connector, in particular to a general universal serial bus connector with a group of terminals added to increase the transmission speed of electronic signals.

Background technique

Universal Serial Bus (Universal Serial Bus, USB) is currently one of the most popular transmission interfaces in the electronic product market. It is mainly composed of one-line end connectors and one-board end matching each other to communicate electronic signals of cables and circuit boards. . Recently, memory is installed in the end connector of the universal serial bus, so that the end connector of the USB does not need to carry a cable and can be matched with any USB board end connector, so that the The memory and the circuit board carrying the board connector communicate electronic signals with each other.

Since the current USB 2.0 interface standard mainly regulates two transmission rates, the high-speed (High Speed) transmission rate of high bandwidth is 480Mb/s, and the full-speed (Full Speed) transmission rate of low bandwidth is 12Mb/s. Full-speed transmission with low bandwidth is provided by the few electronic devices such as mice and keyboards that do not transmit a large amount of data in a short time.

Although the USB 2.0 interface is widely used in electronic products, as the amount of data transmitted between electronic devices continues to increase, the USB 2.0 interface must also increase the transmission rate to shorten the time required to transmit a large amount of data. The USB 3.0 interface standard officially released on November 12, 2008 regulates the super-fast (Super Speed) transmission rate, and the super-fast transmission rate of the USB 3.0 interface standard can reach 5.0Gb/S. Due to the increased transmission rate of the USB 3.0 interface standard, at least two pairs of differential signal terminals and one ground terminal must be added in the USB connector to provide sufficient bandwidth.

Since the two sets of terminal groups of the USB 3.0 interface standard include the traditional USB 2.0 and the newly added two pairs of differential signal terminals and a ground terminal, not only the mechanical structure of the entire connector becomes crowded, but also the transmission speed is as high as 5.0Gb It is easy to be sensitive to noise when /S, so the existing universal serial bus board connector needs to be improved.

Contents of the invention

The main purpose of the present invention is to provide an improved USB connector, in particular to provide a structure of a USB connector in which the terminals are assembled in the insulating housing without relying on the embedded molding method.

The secondary purpose of this utility model is to provide an improved universal serial bus connector, especially to provide a universal serial bus connector structure with proper protection for the contact part of the connector before the overall assembly of the connector is completed .

The improved universal serial bus connector of the utility model mainly includes a plurality of first terminals, a plurality of second terminals, an insulating shell and a shielding shell. Each of the first terminal and the second terminal has a contact portion, a tail portion and an extension portion respectively, and the contact portions of each of the first terminal and the second terminal can be respectively connected with a butt connector, and each of the first terminal and the second terminal The tail part of the terminal can be electrically connected with a circuit board, and the extension part of each of the first terminal and the second terminal is connected with the contact part and the tail part of each terminal. A tongue is extended from the insulating housing, and the tongue has a plurality of terminal receiving grooves, and the terminal receiving grooves on each tongue are used to respectively accommodate at least a part of each of the first terminal extensions. The contact portion of each first terminal protrudes out of the terminal accommodating groove of the tongue to be connected with the connector. The shielding shell roughly covers the outside of the insulating shell. The insulating shell has a cap detachably assembled between the tongue and the shielding shell, and the cap of the insulating shell at least shields a part of the extension of each second terminal.

The beneficial technical effects of the utility model are: because the first terminal of the utility model is roughly assembled in the tongue of the insulating housing, and each of the second terminals is roughly assembled in the cap of the insulating housing, and the When the cap is assembled between the tongue piece and the shielding shell, the first terminal and the second terminal can form a plastic insulator on each terminal without using the existing embedded molding method, so the mold structure is relatively simple and durable. Since each of the first terminal extensions of the present invention is at least partially accommodated in the tongue of the insulating housing, when the first terminals are assembled into the tongue of the insulating housing, the insulating housing The tongue piece can provide proper protection for the contact portion of each first terminal, preventing the contact portion of each first terminal from being damaged during transportation.

In order to enable those familiar with this technology to further understand the technology disclosed in the utility model, the following examples are given in detail.

Description of drawings

Fig. 1 is a perspective view of a preferred embodiment of the utility model;

Fig. 2 is a three-dimensional exploded view of a preferred embodiment of the present invention;

Fig. 3A is a schematic diagram of the assembly of each first terminal and the main body of the insulating case in a preferred embodiment of the present invention;

Fig. 3B is a schematic diagram of the assembly of each second terminal and the cap of the insulating housing in a preferred embodiment of the present invention;

Fig. 4A and Fig. 4B are step-by-step assembly schematic diagrams of the main body and the cap of the insulating housing of the preferred embodiment of the present invention;

Fig. 5A is a top view of a preferred embodiment of the utility model after the insulation housing is assembled;

FIG. 5B is a sectional view along line A-A in FIG. 5A.

Wherein, the reference signs are explained as follows:

1 first terminal 11 contact part

12 Tail 13 Extension

131 spines 2 second terminal

21 Contact part 22 Tail

23 Extensions 231 Thorns

232 auxiliary spines 3 insulating shells

31 Main body 311 Tongue

312 First terminal receiving slot 313 Buckle lock arm

314 buckle hook 32 cap

321 Second terminal storage slot 322 Occipital part

323 card shoots 4 shielded shells

Detailed ways

As shown in FIG. 1 and FIG. 2 , this embodiment is mainly composed of a plurality of first terminals 1 , a plurality of second terminals 2 , an insulating shell 3 and a shielding shell 4 .

Each of the first terminal 1 and the second terminal 2 has a contact portion 11 , 21 , so that each terminal can be connected to a mating connector (not shown in the figure). Each of the first terminal 1 and the second terminal 2 has a tail portion 12, 22 respectively, so that the tail portions 12, 22 of each of the terminals 1, 2 can form an electrical connection with a circuit board (not shown in the figure), and each of the The tails 12 and 22 of the terminals 1 and 2 are usually welded on the circuit board, so that the electrical connection between the tails of the terminals and the circuit board can be stabilized. The welding forms include SMT welding or DIP welding (Fig. In the illustration, only terminals suitable for DIP and soldering are used as representatives). The contact portions 11 , 21 and the tail portions 12 , 22 of each of the first terminal 1 and the second terminal 2 are connected by an extension portion 13 , 23 .

In this embodiment, the insulating housing 3 mainly includes a main body 31 and a cap 32, the main body 31 extends a tongue 311 at a distance from the circuit board (not shown in the figure), and the cap The cover 32 is assembled on the tongue 311 .

As shown in FIG. 3A, the main body 31 and the tongue 311 of the insulating housing 3 are provided with a plurality of first terminal receiving grooves 312, and each of the first terminal receiving grooves 312 penetrates the main body 31 and extends to the tongue. Sheet 311. Each of the first terminals 1 can be assembled from the main body portion 31 of the insulating housing 3 into the first receiving groove 312 of the tongue 311, and the contact portion 11 of each of the first terminals 1 can protrude from the insulating shell 3. The tongue 311 of the housing 3 is outside the first terminal accommodating groove 312 . In this embodiment, since each first terminal receiving groove 312 of the tongue piece 311 is opened toward the circuit board, the contact portion 11 of each first terminal 1 protrudes out of the insulating housing toward the circuit board. 3 tongues 311. Similarly, when the first terminal receiving grooves 312 of the tongue piece 311 are opened away from the direction of the circuit board, the contact portion 11 of each of the first terminals 1 protrudes from the tongue of the insulating housing 3 in the direction away from the circuit board. Sheet 311.

In order to make each of the first terminals 1 stably held in the first terminal receiving groove 312 of the tongue piece 311 , an appropriate interference mechanism can be provided on the extension portion 13 of each of the first terminals 1 . In this embodiment, each extension portion 13 of the first terminal 1 is provided with a thorn 131 with a protruding size. When each of the first terminals 1 is assembled into the first terminal receiving groove 312 of the main body 31 and the tongue piece 311, each of the spines 131 interferes with the first terminal receiving groove 312, so that each of the first terminals At least a part of the extension portion 13 of 1 is retained in the first terminal receiving groove 312 of the tongue piece 311 .

As shown in FIG. 3B , the cap 32 of the insulating housing 3 has a plurality of second terminal receiving grooves 321 for respectively accommodating each second terminal 2 . Appropriate interference mechanism can be set on the extension part 23 of each second terminal 2 of the present invention, so that at least a part of the extension part 23 of each second terminal 2 can be stably held by the first part of the cap 32 The two terminals are contained in the groove 321 . In this embodiment, the extension portion 23 of each second terminal 2 is also provided with a protruding thorn 231 , then when each second terminal 2 is assembled into each second terminal receiving groove 321 of the cap 32 When inside, use the thorns 231 of each of the second terminals 2 to interfere with the second terminal receiving grooves 321 of the cap 32, and retain the second terminals 2 in the second terminal accommodation of the cap 32. Inside the groove 321.

In this embodiment, since the length of each of the second terminals 2 is relatively long, in order to make the contact portion 21 of each of the second terminals 2 stably held on the position of the cap 32, each of the second terminals 2 Other auxiliary spines 232 can be added on the extension portion 23 of the terminal 2 to assist the spines 231 of each second terminal 2 .

In order to ensure that the contact portion 21 of each second terminal 2 can be connected with the mating connector, each of the second terminal receiving grooves 321 of the cap 32 can protrude a pillow portion 322 at an appropriate position, and each pillow portion 322 is used to force each The contact portion 21 of the second terminal 2 protrudes from each of the second terminal receiving grooves 321 . Since the cap 32 of the insulating housing 3 is suitable for being assembled on the tongue 311, and the contact portion 21 of each of the second terminals 2 protrudes from each of the second terminal receiving grooves 321, so when the cap 32 is assembled on the tongue 311, the contact portion 21 of each second terminal 2 is located at the end edge of the tongue 311, and the contact portions 11, 12 of each of the first terminal 1 and the second terminal 2 The tongue pieces 311 are roughly arranged in two rows at the end edge of the insulating housing.

As shown in FIG. 4A and FIG. 4B, since the first terminal 1 and the second terminal 2 of the present utility model are respectively assembled on the main body 31 and the cap 32 of the insulating housing 3, the main body of the insulating housing 3 31 and the cap 32 should have a suitable buckle mechanism, so that the main body 31 and the cap 32 can be stably combined.

In this embodiment, the main body 31 of the insulating housing extends toward the cap 32 with a pair of locking arms 313 (please refer to FIG. 5A ), and each end of the locking arms 313 is provided with a locking hook 314. The cap 32 is provided with a pair of hooks 323 relative to the hook 314 of the main body 31, and the pair of hooks 314 of the main body 31 cooperates with the hooks 323 of the cap 32, so that the main body 31 and the cap 32 can Stably combined into an insulating shell 3. After completing the assembly of the first terminal 1 and the second terminal 2 of the insulating shell 3, a shielding shell 4 is used to cover the outside of the insulating shell 3 (please refer to FIG. 1 ), so that each of the first terminals 1 and the second terminal 2 can be protected by the shielding shell 4 to prevent the electronic signals communicated between the connector and the mating connector from being interfered by electromagnetic waves in the external environment.

As shown in Figure 5A and Figure 5B, in the embodiment of the present utility model, since each of the first terminals 1 is assembled on the tongue 311 of the insulating housing 3, the tongue 311 can be connected to each of the first terminals. The contact portion 11 of each first terminal 1 provides proper protection to prevent the contact portion 11 of each first terminal 1 from being damaged. In addition, each of the first terminal 1 and the second terminal 2 is installed in the tongue piece 311 and the cap 32 respectively, without using the embedding molding method, and the purpose of creation can be achieved.

Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the patent scope of the utility model. Any person with ordinary knowledge in the technical field can make a patent without departing from the spirit and scope of the utility model. Some changes and modifications, so the protection scope of the present utility model should be defined by the claims of the present application.

Claims (7)

1. An improved universal serial bus connector, which comprises a plurality of first terminals, a plurality of second terminals, an insulating housing and a shielding shell; each of the first terminals and the second terminals has a contact part, a tail part and an extension part, the contact parts of each of the first terminal and the second terminal are respectively connected to the butt connector, and the tail parts of each of the first terminal and the second terminal are electrically connected to a circuit board, The extension parts of the first terminals and the second terminals are respectively connected to the contact parts and tail parts of the terminals; a tongue piece is extended from the insulating housing, and the tongue piece has a plurality of terminal receiving grooves for respectively accommodating the first terminals. A part of a terminal extension, and the contact portion of each first terminal elastically protrudes out of the tongue of the insulating housing; the shielding shell roughly covers the outside of the insulating housing; it is characterized in that: The insulating housing has a cap, the cap of the insulating housing is separately assembled between the tongue piece and the shielding shell, and the cap of the insulating housing at least shields each of the second terminals part of the extension. 2. The improved universal serial bus connector as claimed in claim 1, wherein the insulating housing cap is provided with a plurality of second terminal receiving grooves, and each of the second terminal receiving grooves accommodates one The second terminal extension. 3. The improved universal serial bus connector as claimed in claim 2, characterized in that, each of the second terminal receiving grooves has a suitable part respectively to ensure that the contact portion of each of the second terminals protrudes from each of the said second terminals. Describe the pillow portion of the second terminal receiving groove. 4. The improved universal serial bus connector according to claim 2, wherein each of the second terminal extensions is provided with a thorn that interferes with each of the second terminal receiving grooves on the cap. . 5. The improved universal serial bus connector according to claim 1, characterized in that, the tongue of the insulating housing is provided with a plurality of first terminal receiving grooves, and each of the first terminal receiving grooves and Each of the first terminal extensions has an interference relationship. 6 . The improved USB connector according to claim 4 , wherein each of the first terminal extensions is provided with a thorn that interferes with each of the first terminal receiving grooves on the tongue. 7 . 7. The improved universal serial bus connector as claimed in claim 1, characterized in that, the body of the insulating housing has a pair of locking arms extending toward the cap, and each of the locking arms is respectively provided with a locking arm. hook, and the hook of the cap of the insulating housing corresponding to the hook of the body is provided with a hook that cooperates with the latch of the cap so that the body and the cap are interlocked.

Images