CN216958743U - Connector capable of shortening signal transmission distance and improving high-frequency performance - Google Patents
Connector capable of shortening signal transmission distance and improving high-frequency performance Download PDFInfo
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- CN216958743U CN216958743U CN202122606761.XU CN202122606761U CN216958743U CN 216958743 U CN216958743 U CN 216958743U CN 202122606761 U CN202122606761 U CN 202122606761U CN 216958743 U CN216958743 U CN 216958743U
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Abstract
The utility model discloses a connector capable of shortening signal transmission distance and improving high-frequency performance, which comprises an insulating body, a first terminal group, a second terminal group and a bottom plug body, wherein the insulating body is provided with a plurality of first terminals; the second terminal group consists of a plurality of signal terminals and a plurality of grounding terminals, the signal terminals are respectively inserted and fixed in corresponding signal terminal grooves, the grounding terminals are respectively inserted and fixed in corresponding grounding terminal grooves, each signal terminal is provided with a signal contact part, a signal fixing part and a signal welding part which are connected in an integrated manner, each grounding terminal is provided with a grounding contact part, a grounding fixing part and a grounding welding part which are connected in an integrated manner, the height of the signal contact part is H1 and is designed to be smaller than the height H2 of the grounding contact part, so that the transmission distance of signals on the signal terminals is shortened, the resonant crosstalk and impedance in the signal transmission process are reduced, the high-frequency performance is achieved, the requirement of high-frequency passing is completely met, and convenience is brought to use.
Description
Technical Field
The utility model relates to the technical field of connectors, in particular to a connector capable of shortening a signal transmission distance and improving high-frequency performance.
Background
PCI-E (PCI-Express) is a general bus specification, which was originally proposed and promoted by Intel (also referred to as 3GIO before), and its final design purpose is to replace the bus transmission interface inside the existing computer system, which not only includes the display interface, but also includes various application interfaces such as CPU, PCI, HDD, Network, etc. Therefore, the method can be used for solving the bottleneck problem of data transmission in the current system like a Hyper-Transport, and can be used for fully preparing for improving the performance of peripheral products in the future.
The existing PCI-E connector is provided with a plurality of signal terminals and grounding terminals which are arranged in a staggered mode, the shapes, sizes and materials of the existing signal terminals and grounding terminals are the same, the transmission distance of signals on the signal terminals is long, the product is difficult to meet the requirement of high-frequency passing, the high-frequency performance is poor, and the use requirement cannot be met. Therefore, there is a need to develop a solution to the above problems.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a connector capable of shortening a signal transmission distance and improving high frequency performance, which can effectively solve the problem of poor high frequency performance of the conventional connector due to a long signal transmission distance.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a connector capable of shortening signal transmission distance and improving high-frequency performance comprises an insulating body, a first terminal group, a second terminal group and a bottom plug body;
the insulating body is provided with a first inserting cavity and a second inserting cavity with upward openings, the bottom surface of the second inserting cavity is recessed to form a plurality of signal terminal grooves and a plurality of grounding terminal grooves, the signal terminal grooves and the grounding terminal grooves penetrate through the bottom surface of the insulating body, and the signal terminal grooves and the grounding terminal grooves are separated from each other;
the first terminal group is arranged on the insulating body and provided with a plurality of first contact parts and a plurality of first welding parts, the first contact parts are exposed in the first inserting cavity, and the first welding parts extend out of the insulating body;
the second terminal group consists of a plurality of signal terminals and a plurality of grounding terminals, the signal terminals and the grounding terminals are alternately arranged side by side at intervals, the signal terminals are respectively inserted and fixed in corresponding signal terminal grooves, the grounding terminals are respectively inserted and fixed in corresponding grounding terminal grooves, each signal terminal is provided with a signal contact part, a signal fixing part and a signal welding part which are connected in an integrated manner, each grounding terminal is provided with a grounding contact part, a grounding fixing part and a grounding welding part which are connected in an integrated manner, the signal contact parts and the grounding welding parts are exposed in the second insertion cavity, the signal welding parts and the grounding welding parts extend outwards out of the insulating body, and the height of the signal contact parts is H1 which is smaller than the height H2 of the grounding contact parts;
the bottom plug body is fixed at the bottom of the insulating body and comprises a bottom plate, a plurality of first filling parts and a plurality of second filling parts, wherein the plurality of first filling parts and the plurality of second filling parts extend upwards from the surface of the bottom plate, the bottom plate covers bottom openings of a plurality of signal terminal grooves and bottom openings of a plurality of grounding terminal grooves, the plurality of first filling parts are respectively embedded into the corresponding signal terminal grooves and press against the corresponding signal fixing parts, and the plurality of second filling parts are respectively embedded into the corresponding grounding terminal grooves and press against the corresponding grounding fixing parts.
As a preferable scheme, a plurality of hook portions extend from the surface of the base plate, the hook portions are respectively located beside the inner sides of the corresponding filling portions, and the hook portions hook the inner side walls of the signal terminal slots or the inner side walls of the ground terminal slots.
Preferably, the bottom surfaces of the two end surfaces of the insulating body are concavely provided with fixing grooves, and a grounding plate is fixedly inserted into each fixing groove.
Preferably, the first soldering portions are divided into two groups and horizontally extend out of the front and rear sides of the insulating body, and the signal soldering portions and the ground soldering portions are divided into two groups and horizontally extend out of the front and rear sides of the insulating body.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, and specifically, the technical scheme includes that:
the height of the signal contact part is H1 and is designed to be smaller than the height H2 of the grounding contact part, so that the transmission distance of a signal on a signal terminal is shortened, the resonant crosstalk and impedance in the signal transmission process are reduced, the high-frequency performance is achieved, the requirement of high-frequency passing is completely met, and convenience is brought to use.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is an assembled perspective view of the preferred embodiment of the present invention;
FIG. 2 is an exploded view of the preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view of a preferred embodiment of the present invention.
The attached drawings indicate the following:
10. insulating body 11 and first insertion cavity
12. Second inserting cavity 13 and signal terminal groove
14. Ground terminal groove 20, first terminal group
21. First contact portion 22, first welding portion
30. Second terminal group 31, signal terminal
311. Signal contact part 312 and signal fixing part
313. Signal welding part 32 and ground terminal
321. Ground contact 322, ground fixing part
323. Grounding welding part 40 and bottom plug body
41. Bottom plate 42, first filling part
43. Second filling part 44 and hook part
50. And a grounding piece.
Detailed Description
Referring to fig. 1 to fig. 3, a specific structure of a preferred embodiment of the utility model is shown, which includes an insulating body 10, a first terminal set 20, a second terminal set 30 and a bottom plug 40.
The insulating body 10 has a first insertion cavity 11 and a second insertion cavity 12 with upward openings, the bottom surface of the second insertion cavity 12 is recessed to form a plurality of signal terminal grooves 13 and a plurality of ground terminal grooves 14, the plurality of signal terminal grooves 13 and the plurality of ground terminal grooves 14 both penetrate through the bottom surface of the insulating body 10, and the signal terminal grooves 13 and the ground terminal grooves 14 are separated from each other. In this embodiment, the insulating body 10 is long, and the bottom surfaces of the two end surfaces of the insulating body 10 are recessed with fixing grooves (not shown), and each fixing groove is inserted and fixed with a grounding plate 50.
The first terminal set 20 is disposed on the insulating body 10, the first terminal set 20 has a plurality of first contact portions 21 and a plurality of first welding portions 22, the plurality of first contact portions 21 are exposed in the first insertion cavity 11, and the plurality of first welding portions 22 extend out of the insulating body 10. In the present embodiment, the first terminal groups 20 are all ground terminals, which are divided into two front and rear rows, and the plurality of first welding portions 22 are divided into two groups and horizontally extend out of the front and rear sides of the insulating body 10.
The second terminal set 30 is composed of a plurality of signal terminals 31 and a plurality of ground terminals 32, the plurality of signal terminals 31 and the plurality of ground terminals 32 are alternately arranged side by side at intervals, the plurality of signal terminals 31 are respectively inserted and fixed in the corresponding signal terminal slots 13, the plurality of ground terminals 32 are respectively inserted and fixed in the corresponding ground terminal slots 14, each signal terminal 31 has a signal contact portion 311, a signal fixing portion 312 and a signal 313 welding portion which are integrally connected, each ground terminal 32 has a ground contact portion 321, a ground fixing portion 322 and a ground welding portion 323 which are integrally connected, the plurality of signal contact portions 311 and the plurality of ground contact portions 321 are exposed in the second insertion cavity 12, the plurality of signal welding portions 313 and the plurality of ground welding portions 323 extend outward from the insulating body 10, and the thickness of the signal terminals 31 is the same as the thickness of the ground terminals 32, the height H1 of the signal contact portion 311 is smaller than the height H2 of the ground contact portion 321, so as to shorten the transmission distance of the signal on the signal terminal 31, thereby reducing the resonant crosstalk and impedance during the signal transmission process, and further achieving the high-frequency performance. In this embodiment, the second terminal group 30 is divided into two front and rear rows, each row is composed of a plurality of signal terminals 31 and a plurality of ground terminals 32 alternately spaced side by side, the plurality of signal soldering portions 313 and ground soldering portions 323 are divided into two groups and horizontally extend out of the front and rear sides of the insulative housing 10; in addition, the signal terminal 31 is made of a metal copper material to further reduce resistance, and the ground terminal is made of a stainless steel material to ensure insertion and extraction force and avoid easy insertion and extraction fatigue.
The bottom plug 40 is fixed to the bottom of the insulating housing 10, the bottom plug 40 includes a bottom plate 41, and a plurality of first filling portions 42 and a plurality of second filling portions 43 extending upward from the surface of the bottom plate 41, the bottom plate 41 covers the bottom openings of the plurality of signal terminal slots 13 and the bottom openings of the plurality of ground terminal slots 14, the plurality of first filling portions 42 are respectively embedded in the corresponding signal terminal slots 13 and press against the corresponding signal fixing portions 312, and the plurality of second filling portions 43 are respectively embedded in the corresponding ground terminal slots 14 and press against the corresponding ground fixing portions 322. In this embodiment, a plurality of hooks 44 extend from the surface of the bottom plate 41, the hooks 44 are respectively located beside the inner sides of the corresponding filling portions, and the hooks 44 hook the inner side wall of the signal terminal slot 13 or the inner side wall of the ground terminal slot 14, so that the bottom plug 40 is firmly combined with the insulating body 10; in addition, the first filling portions 42 are in multiple groups, each group of first filling portions 42 is composed of two first filling portions 42 to purposefully press each signal fixing portion 312, so as to better isolate air and achieve more effective enhancement of high-frequency performance, and the height of the first filling portions 42 is higher than that of the second filling portions 43 so as to better press each signal fixing portion 312; and the bottom plug body 40 and the insulation body 10 are sealed and fixed by gluing, so as to isolate air to the maximum extent.
Detailed description the assembly process of this embodiment is as follows:
firstly, punch forming the first terminal set 20 and the second terminal set 30, and then arranging the first terminal set 20 and the second terminal set 30 on the insulating body 10; then, the bottom plug 40 is mounted on the insulating body 10 from bottom to top, so that the first filling portions 42 are respectively embedded into the corresponding signal terminal slots 13 and pressed against the corresponding signal fixing portions 312, and the second filling portions 43 are respectively embedded into the corresponding ground terminal slots 14 and pressed against the corresponding ground fixing portions 322; finally, the grounding plate 50 is inserted and fixed in the fixing groove.
When the product is used, the product is fixed on the equipment mainboard, the first welding parts 22, the signal welding parts 313 and the ground welding parts 323 are welded and conducted with the equipment mainboard, and then the electronic card is inserted into the first insertion cavity 11 and the second insertion cavity 12 to be in contact and conduction with the first contact parts 21, the signal contact parts 311 and the ground contact parts 321.
The design of the utility model is characterized in that: through the height H2 of being less than ground contact portion for H1 design with the height of signal contact portion to shorten the transmission distance of signal on signal terminal, thereby reduce the resonance crosstalk and the impedance among the signal transmission process, and then reach the high frequency performance, satisfy the requirement that the high frequency passes through completely, bring the facility for the use.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (4)
1. A connector capable of shortening a signal transmission distance and improving high-frequency performance, characterized in that: the circuit comprises an insulating body, a first terminal group, a second terminal group and a bottom plug body;
the insulating body is provided with a first inserting cavity and a second inserting cavity with upward openings, the bottom surface of the second inserting cavity is recessed to form a plurality of signal terminal grooves and a plurality of grounding terminal grooves, the signal terminal grooves and the grounding terminal grooves penetrate through the bottom surface of the insulating body, and the signal terminal grooves and the grounding terminal grooves are separated from each other;
the first terminal group is arranged on the insulating body and provided with a plurality of first contact parts and a plurality of first welding parts, the first contact parts are exposed in the first inserting cavity, and the first welding parts extend out of the insulating body;
the second terminal group consists of a plurality of signal terminals and a plurality of grounding terminals, the signal terminals and the grounding terminals are alternately arranged side by side at intervals, the signal terminals are respectively inserted and fixed in corresponding signal terminal grooves, the grounding terminals are respectively inserted and fixed in corresponding grounding terminal grooves, each signal terminal is provided with a signal contact part, a signal fixing part and a signal welding part which are connected in an integrated manner, each grounding terminal is provided with a grounding contact part, a grounding fixing part and a grounding welding part which are connected in an integrated manner, the signal contact parts and the grounding welding parts are exposed in the second insertion cavity, the signal welding parts and the grounding welding parts extend outwards out of the insulating body, and the height of the signal contact parts is H1 which is smaller than the height H2 of the grounding contact parts;
the bottom plug body is fixed at the bottom of the insulating body and comprises a bottom plate, a plurality of first filling parts and a plurality of second filling parts, wherein the plurality of first filling parts and the plurality of second filling parts extend upwards from the surface of the bottom plate, the bottom plate covers bottom openings of a plurality of signal terminal grooves and bottom openings of a plurality of grounding terminal grooves, the plurality of first filling parts are respectively embedded into the corresponding signal terminal grooves and press against the corresponding signal fixing parts, and the plurality of second filling parts are respectively embedded into the corresponding grounding terminal grooves and press against the corresponding grounding fixing parts.
2. The connector capable of shortening a signal transmission distance and improving high-frequency performance according to claim 1, wherein: the surface of the bottom plate extends to form a plurality of hook parts, the hook parts are respectively positioned beside the inner sides of the corresponding filling parts, and the hook parts hook the inner side walls of the signal terminal grooves or the inner side walls of the grounding terminal grooves.
3. The connector capable of shortening a signal transmission distance and improving high-frequency performance according to claim 1, wherein: the bottom surfaces of two end faces of the insulating body are concavely provided with fixing grooves, and a grounding piece is fixedly inserted into each fixing groove.
4. The connector capable of shortening a signal transmission distance and improving high-frequency performance according to claim 1, wherein: the plurality of first welding parts are divided into two groups and horizontally and outwards extend out of the front side and the rear side of the insulation body respectively, and the plurality of signal welding parts and the grounding welding parts are divided into two groups and horizontally and outwards extend out of the front side and the rear side of the insulation body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122606761.XU CN216958743U (en) | 2021-10-27 | 2021-10-27 | Connector capable of shortening signal transmission distance and improving high-frequency performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122606761.XU CN216958743U (en) | 2021-10-27 | 2021-10-27 | Connector capable of shortening signal transmission distance and improving high-frequency performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216958743U true CN216958743U (en) | 2022-07-12 |
Family
ID=82302707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122606761.XU Active CN216958743U (en) | 2021-10-27 | 2021-10-27 | Connector capable of shortening signal transmission distance and improving high-frequency performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216958743U (en) |
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2021
- 2021-10-27 CN CN202122606761.XU patent/CN216958743U/en active Active
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