TWI665835B - USB A female connector (1) - Google Patents

Abstract

The invention relates to a USB A female connector. The main structure includes a first and a second high-frequency differential signal transmission conductor pair, and a first and a second respectively disposed on the inner side of the first and second high-frequency differential signal transmission conductor pair. Two power transmission conductors, a low-frequency signal transmission conductor pair, and a ground transmission conductor, and the ground elastic contact portion of the ground transmission conductor can abut a male connector against the outer shell of the male connector and ground transmission. The grounding plate-shaped contact portion of the conductor is used for the ground terminal of the male connector to abut when the male connector is docked. In this way, the potential difference between the power transmission conductors is used to isolate high-frequency noise, and at the same time the crosstalk problem avoids the interaction of high-frequency differential signal transmission conductor pairs caused by the ground transmission conductor.

Description

USB A female connector (1)

The present invention is to provide a USB A female connector, especially a USB A female connector that can provide better high-frequency shielding effect and solve the problem of the ground terminal expanding crosstalk.

According to the general serial bus connector, due to its plug-and-play, high-speed transmission and other advantages, and since the USB1.0 specification just developed to the current MicroUSB3.0 specification, its transmission capacity has been greatly developed, It has been widely used in electronic products. The USB-related transmission protocol is a specification made by the USB Association (USB Implementer Forum Inc. USB-IF). All USB connectors must meet this type of specifications before they can communicate with other USB connectors.

As far as USB3.0 TypeA is concerned, in the past, in order to suppress the problem of high-frequency noise, a large number of ground terminal improvements were used for shielding. For example: the ground terminal was connected to the housing and designed to surround the periphery of the high-frequency terminal or all the terminals Ring shielding type, by which the ground signal is used to isolate the EMI and RFI generated by the high-frequency terminal; or with the isolation effect of the ground terminal, the power terminal is set outside the high-frequency terminal to block the high-frequency signal from the outside interference.

However, the above-mentioned USB3.0 TypeA high-frequency noise suppression method does have the following problems and defects that need to be improved:

First, the main influence object of high-frequency noise is mainly the mutual interference between internal terminals, and only the ground signal isolation of the ground terminal is used, and its effect is quite limited.

2. The ground terminal is designed as a ring shield. Although it effectively increases the comprehensiveness of the shielding effect, it causes high-frequency crosstalk to be transmitted to other terminals along the ground terminal.

3. Failure to make full use of the characteristics of the high and low potential difference of the power terminals to optimize the high frequency characteristics.

Therefore, how to solve the above-mentioned problems and shortcomings is where the creators of the present invention and related manufacturers engaged in this industry are eager to study and improve.

Therefore, the creator of the present invention, in view of the above-mentioned shortcomings, collected relevant information, evaluated and considered from various parties, and based on the years of experience accumulated in this industry, and continued to make trials and modifications, he began to design this type that can provide better heights. The inventor of the USB A female connector, which has the effect of shielding the frequency and solving the problem of the ground terminal expanding crosstalk.

The main purpose of the present invention is to improve the high-frequency shielding effect by using the potential difference of the power transmission conductor, and to keep the ground terminal away from the high-frequency differential signal transmission conductor, so as to prevent the crosstalk problem from expanding.

To achieve the above object, the main structure of the present invention includes: a first high-frequency differential signal transmission conductor pair, and a first power transmission conductor is provided on one side of the first high-frequency differential signal transmission conductor pair, and is transmitted on the first power source. A low-frequency signal transmission conductor pair is provided on one side of the conductor, and a second power transmission conductor is provided on the side of the low-frequency signal transmission conductor pair facing away from the first power transmission conductor, and the first high-frequency differential signal transmission conductor is provided on the opposite side. There is a second high-frequency differential signal transmission conductor pair, and a ground transmission conductor is provided between the low-frequency signal transmission conductor pair. The front and rear ends of the first high-frequency differential signal transmission conductor pair respectively define a first high-frequency differential. A signal plate-shaped contact pair and a first high-frequency differential signal welding pair, and the front and rear ends of the first power transmission conductor respectively define a first power elastic contact located behind the first high-frequency differential signal plate-shaped contact pair; And a first power source welding portion located on the opposite side of the first high-frequency differential signal welding pair, and the front and rear ends of the low-frequency signal transmission conductor pair are defined respectively A low-frequency signal elastic contact pair located on one side of the first power supply elastic contact portion, and a low-frequency signal welding pair located on the side of the first power supply welding portion facing away from the first high-frequency differential signal welding opposite side, and the second A front end and a rear end of the power transmission conductor respectively define a second power elastic contact portion located on a side of the low frequency signal elastic contact pair facing away from the first power source elastic contact portion, and a low frequency signal welding pair facing away from the first power source welding portion. A second high-frequency differential signal transmission conductor pair, and a front and rear ends of the second high-frequency differential signal transmission conductor pair respectively define a second high-frequency differential signal plate-shaped contact pair on the front side of the second power elastic contact portion, and A second high-frequency differential signal welding pair on the side of the second power source welding part facing away from the low-frequency signal welding pair, and a front-end of the ground transmission conductor defining a plate-shaped contact pair located on the first high-frequency differential signal and the second The ground plate-shaped contact portion between the high-frequency differential signal plate-shaped contact pair is located on the front side of the low-frequency signal elastic contact portion, and is behind the ground transmission conductor. A ground defining a resilient contact portion located between the low frequency signal transmission conductor pairs and resistant than the male connector housing when the mating based on a male connector.

With the above-mentioned technology, the grounding of the high-frequency noise suppression method of the conventional USB3.0 TypeA can be targeted. The isolation effect of the signal is quite limited, the ring ground terminal worsens the crosstalk problem, and the problem of not using the potential difference to optimize the high-frequency characteristics is broken through to achieve the practical advancement of the above advantages.

1‧‧‧The first high-frequency differential signal transmission conductor pair

11‧‧‧The first high frequency differential signal welding pair

12‧‧‧The first high-frequency differential signal plate contact pair

13‧‧‧First bend base

2‧‧‧ the first power transmission conductor

21‧‧‧The first power welding section

22‧‧‧ the first power board contact

3‧‧‧ Low-frequency signal transmission conductor pair

31‧‧‧Low frequency signal welding pair

32‧‧‧ Low-frequency signal plate contact pair

4‧‧‧Second power transmission conductor

41‧‧‧Second power welding section

42‧‧‧Second power supply plate contact

5‧‧‧Second high frequency differential signal transmission conductor pair

51‧‧‧The second high frequency differential signal welding pair

52‧‧‧Second high frequency differential signal plate contact pair

53‧‧‧Second bending base

6‧‧‧ ground transmission conductor

61‧‧‧Earth ground contact

62‧‧‧ ground plate contact

71‧‧‧Insulation gel

72‧‧‧shielded housing

8‧‧‧ Transmission conductor welding group

9‧‧‧female connector

91‧‧‧ ground terminal

92‧‧‧ Outer shell

The first figure is a perspective view of a preferred embodiment of the present invention.

The second figure is a perspective view of a transmission conductor according to a preferred embodiment of the present invention.

The third figure is a top view of a transmission conductor according to a preferred embodiment of the present invention.

The fourth figure is a side view of a transmission conductor according to a preferred embodiment of the present invention.

The fifth diagram is a schematic diagram of the male-female docking implementation (1) of the preferred embodiment of the present invention.

The sixth diagram is a schematic diagram of the male-female docking implementation (b) of the preferred embodiment of the present invention.

The seventh figure is a sectional view taken along line A-A of the sixth figure of the preferred embodiment of the present invention.

In order to achieve the above-mentioned object and effect, the technical means and structure adopted by the present invention are described in detail below with reference to the preferred embodiments of the present invention.

Please refer to the first to third figures, which are three-dimensional views of the preferred embodiment of the present invention to the top view of the transmission conductor. It can be clearly seen from the figure that the present invention includes: a first high-frequency differential signal transmission conductor pair 1 A first high-frequency differential signal welding pair 11 defined at the rear end of the first high-frequency differential signal transmission conductor pair 1; a first high-frequency differential signal defined at the front end of the first high-frequency differential signal transmission conductor pair 1 A plate-shaped contact pair 12; a first bent base 13 defined on the first high-frequency differential signal transmission conductor pair 1, the first high-frequency differential signal transmission guide pair 1 is transmitted by the following first power transmission conductor 2 The front side extends to the outside of the first power transmission conductor 2 described below; a first power transmission conductor 2 provided on the first high-frequency differential signal transmission conductor pair 1 side; and a first power transmission conductor 2 defined A first power source welding portion 21 at the rear end and located on the side of the first high frequency differential signal welding pair 11; a first power transmission conductor 2 defined behind the first power transmission conductor 2 and located behind the first high frequency differential signal plate-shaped contact pair 12 First power elastic contact portion 22 on the side; A low-frequency signal transmission conductor pair 3 on one side of the first power transmission conductor 2; a low-frequency signal transmission conductor pair 3 defined at the rear end of the first power transmission conductor pair 3 and located on the back of the first power welding section 21 Low-frequency signal welding pair 31 on the side of the first high-frequency differential signal welding pair 11; a low-frequency signal elastic contact pair defined on the front end of the low-frequency signal transmission conductor pair 3 and located on the first power elastic contact portion 22 side 32; a second power transmission conductor 4 disposed on the low-frequency signal transmission conductor pair 3 facing away from the first power transmission conductor 2; a second power transmission conductor 4 defined at the rear end of the second power transmission conductor 4 and located on the low-frequency signal welding pair 31 a second power source welding portion 42 facing away from the first power source welding portion 22; a portion defined at the front end of the second power transmitting conductor 4 and located at the low frequency signal elastic contact pair 31 facing away from the first power source elastic contact portion 21 a A second high-frequency differential signal transmission conductor pair 1 on the side; a second high-frequency differential signal transmission conductor pair 5 on the first high-frequency differential signal transmission conductor pair 1; and a second high-frequency differential signal transmission conductor defined on the first high-frequency differential signal transmission conductor pair 1 The second high-frequency differential signal welding pair 51 at the rear end of the second power welding portion 41 facing away from the low-frequency signal welding pair 31; a front end defined by the second high-frequency differential signal transmission conductor pair 5, And located at The second high-frequency differential signal plate-shaped contact pair 52 on the front side of the two power elastic contact portions 42; a second bent base portion 53 defined on the second high-frequency differential signal transmission conductor pair 5 is the second high-frequency The differential signal transmission guide pair 5 extends from the front side of the second power transmission conductor 4 to the outside of the second power transmission conductor 4; a ground transmission conductor 6 provided between the low-frequency signal transmission conductor pair 3; The ground elastic contact 61 at the rear end of the ground transmission conductor 6 and located between the low-frequency signal transmission conductor pair 3 is designed to abut against the outer shell of the male connector when docking with a male connector; one is defined in the ground transmission The ground plate-shaped contact portion 62 at the front end of the conductor 6 and located between the first high-frequency differential signal plate-shaped contact pair 12 and the second high-frequency differential signal plate-shaped contact pair 52 is located on the front side of the low-frequency signal elastic contact portion. 32; an insulating gel 71 for providing the above-mentioned transmission conductors; and a shield case 72 for receiving the insulating gel 71.

The female connector conforms to the USB 3.0 Type A specification, and includes a first high-frequency differential signal welding pair 11, a first power welding section 21, a low-frequency signal welding pair 31, and a second power welding section. 41. The transmission conductor welding portion group 8 composed of the second high-frequency differential signal welding pair 51, and the transmission conductor welding portion group 8 is arranged in a single row on the same horizontal plane.

With the above description, we can understand the structure of this technology, and according to the corresponding cooperation of this structure, it can provide better high-frequency shielding effect, and solve the advantages of the ground terminal to expand the crosstalk. The detailed explanation will be The following description.

Please refer to FIG. 1 to FIG. 7 at the same time, which are cross-sectional views taken along the line AA of the preferred embodiment of the present invention from the perspective view to the sixth drawing. When the above components are assembled, it can be clearly seen from the drawing that this The transmission conductor set of the invention consists of a first high-frequency differential signal transmission conductor pair 1, a first power transmission conductor 2, a low-frequency signal transmission conductor pair 3, a second power transmission conductor 4, a second high-frequency differential signal transmission conductor pair 5, And ground transmission conductor 6, so it is a female connector that complies with the USB 3.0 TypeA specification, but the arrangement of each transmission conductor is different from the conventional one. In addition to using the first bent base 13 of the first high-frequency differential signal transmission conductor pair 1, the terminals of the first high-frequency differential signal transmission conductor pair 1 are extended directly from the front side of the first power transmission conductor 2 to the outside thereof. In order to use the potential difference (V +) of the first power transmission conductor 2 to isolate the noise of the first high-frequency differential signal transmission conductor pair 1, similarly, the second bent base 53 of the second high-frequency differential signal transmission conductor pair 5 is used. , The terminal of the second high-frequency differential signal transmission conductor pair 5 is extended from the front side of the second power transmission conductor 4 to the outside thereof, so as to use the potential difference of the second power transmission conductor 4 (V-, the second power transmission The conductor 4 also has the characteristics of GND.) Isolate the noise of the second high-frequency differential signal transmission conductor pair 5, as shown in the second figure, thereby setting the first and second power transmission conductors 2, 4 on the first, The second high-frequency differential signal transmission conductor pair 1 and 5 use a potential difference to isolate noise between the two, which is better than isolating the ground signal alone.

In addition, the length of the ground transmission conductor 6 is shortened so that the ground plate-shaped contact portion 62 is located between the first high-frequency differential signal plate-shaped contact pair 12 and the second high-frequency differential signal plate-shaped contact pair 52, and its grounding elasticity The contact portion 61 is located between the low-frequency signal elastic contact pair 32, and the ground elastic contact portion 61 faces away from the first power elastic contact portion 22, the low-frequency signal elastic contact pair 32, and the second power elastic contact portion 42. Direction (as shown in the fourth figure), in other words, the overall length of the ground transmission conductor 6 does not extend between the first high-frequency differential signal transmission conductor pair 1 and the second high-frequency differential signal transmission conductor pair 5, and Solve the problem of conventional high-frequency crosstalk transmission between the first and second high-frequency differential signal transmission conductor pairs 1 and 5 through the ground terminal. Therefore, the contact portion of the female connector terminal of the present invention still maintains nine (the first high-frequency differential signal plate-shaped contact pair 12, the first power supply elastic contact portion 22, the low-frequency signal elastic contact pair 32, and the ground plate-shaped contact portion 62 , The second power supply elastic contact pair 42 and the second high-frequency differential signal plate-shaped contact pair 52), but the welding part does not include the ground transmission conductor 6, and only eight (the first high-frequency differential signal welding pair 11, the first A power welding section 21, the The low-frequency signal welding pair 31, the second power source welding portion 41, and the second high-frequency differential signal welding pair 51), and the ground plate-shaped contact portion 62 can be provided for the male connector when docked with a male connector 9. The ground terminal 91 of the connector 9 is abutted, and the ground elastic contact portion 61 is used to abut against the outer shell 92 of the male connector 9 (as shown in the fifth to seventh figures).

However, the above description is only the preferred embodiment of the present invention, and it does not limit the patent scope of the present invention. Therefore, all simple modifications and equivalent structural changes made by using the description and drawings of the present invention should be the same. It is included in the patent scope of the present invention and is incorporated by Chen Ming.

In summary, when the USB A female connector of the present invention is used, in order to truly achieve its efficacy and purpose, the present invention is an invention with excellent practicality. In order to meet the application requirements of the invention patent, it is proposed according to law. I hope that the review committee will grant the present invention as soon as possible to protect the creator's hard invention. If there is any suspicion of the review committee of the Bureau, please follow the letter and instruct the creator to cooperate with all efforts and feel good.

Claims (7)

A USB A female connector mainly includes: a first high-frequency differential signal transmission conductor pair; a first high-frequency differential signal welding pair defined at the rear end of the first high-frequency differential signal transmission conductor pair; a definition A first high-frequency differential signal plate-shaped contact pair at the front end of the first high-frequency differential signal transmission conductor pair; a first power transmission conductor provided on one side of the first high-frequency differential signal transmission conductor pair; A first power source welding portion at the rear end of the first power transmission conductor and located at the first high frequency differential signal welding opposite side; a plate-shaped contact pair defined at the front end of the first power transmission conductor and located at the first high frequency differential signal A first power elastic contact portion on the rear side; a low-frequency signal transmission conductor pair disposed on one side of the first power transmission conductor; a rear end defined on the low-frequency signal transmission conductor pair and located on the first power welding portion facing away from the Low-frequency signal welding pair on the first high-frequency differential signal welding pair side; a low-frequency signal elastic contact defined on the front end of the low-frequency signal transmission conductor pair and located on the first power elastic contact portion side A second power transmission conductor disposed on a side of the low-frequency signal transmission conductor pair facing away from the first power transmission conductor; a second power transmission conductor defined at the rear end of the second power transmission conductor and located on the low-frequency signal welding pair away from the first power supply; A second power source soldering portion on one side of the soldering portion; a second power source elastic contact portion defined on the front end of the second power transmission conductor and located on the low frequency signal elastic contact pair side away from the first power source elastic contact portion; A second high-frequency differential signal transmission conductor pair on one side of the first high-frequency differential signal transmission conductor pair; a rear end defined by the second high-frequency differential signal transmission conductor pair and located at the second power source welding portion facing away from the A second high-frequency differential signal welding pair on one side of the low-frequency signal welding pair; a second high-frequency differential signal plate-shaped defined on the front end of the second high-frequency differential signal transmission conductor pair and located on the front side of the second power elastic contact portion A contact pair; a grounded transmission conductor disposed between the pair of low-frequency signal transmission conductors; a contact defined on the rear end of the grounded transmission conductor and located between the pair of low-frequency signal transmission conductors The grounding elastic contact portion is against the outer shell of the male connector when the male connector is butted; and a plate-shaped contact pair defined on the front end of the ground transmission conductor and located on the first high-frequency differential signal and the The ground plate-shaped contact portion between the second high-frequency differential signal plate-shaped contact pair is located on the front side of the low-frequency signal elastic contact portion. The USB A female connector described in item 1 of the patent application scope further includes an insulating gel and a shielding case for receiving the insulating gel. According to the USB A female connector described in item 1 of the scope of patent application, wherein the first high-frequency differential signal transmission conductor pair defines a first bent base, the first high-frequency differential signal transmission guide pair is defined by The front side of the first power transmission conductor extends to the outside of the first power transmission conductor. According to the USB A female connector described in item 1 of the patent application scope, a second bent base is defined on the second high-frequency differential signal transmission conductor pair, and the second high-frequency differential signal transmission guide pair is defined by The front side of the second power transmission conductor extends to the outside of the second power transmission conductor. The USB A female connector according to item 1 of the scope of patent application, wherein the ground elastic contact portion faces away from the first power elastic contact portion, the low-frequency signal elastic contact pair, and the second power elastic contact portion. Direction. The USB A female connector described in item 1 of the patent application scope, wherein the female connector is in compliance with the USB 3.0 Type A specification, and includes a first high-frequency differential signal welding pair and a first power welding A transmission conductor welding portion group consisting of the low-frequency signal welding pair, the second power source welding portion, and the second high-frequency differential signal welding pair. According to the USB A female connector described in item 6 of the scope of patent application, the transmission conductor soldering group is arranged in a single row on the same horizontal plane.