CN220382342U - DP connector terminal and DP connector female seat - Google Patents
DP connector terminal and DP connector female seat Download PDFInfo
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- CN220382342U CN220382342U CN202321658362.0U CN202321658362U CN220382342U CN 220382342 U CN220382342 U CN 220382342U CN 202321658362 U CN202321658362 U CN 202321658362U CN 220382342 U CN220382342 U CN 220382342U
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- 239000012212 insulator Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 238000004904 shortening Methods 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 description 8
- 238000001746 injection moulding Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a DP connector terminal and a DP connector female seat, wherein the DP connector terminal comprises an upper row of terminals and a lower row of terminals, the upper row of terminals and the lower row of terminals comprise a plurality of contact terminals which are arranged side by side left and right, the contact terminals comprise contact parts, fixing parts and connecting parts which are connected in sequence, the front ends of the contact parts extend to form open-circuit branches which are buried in an insulating body, and differential signal pair terminals are defined in the contact terminals of the upper row of terminals and the lower row of terminals; the front ends of the open branches of the differential signal pair terminals are located rearward of the front ends of the open branches of at least one other contact terminal; and the open circuit branches of the second differential signal terminal and the third differential signal terminal of the two adjacent differential signal pair terminals extend from the front end of the contact part to the front far away from the side, so that the loss and the crosstalk problem of the high-frequency signal are greatly improved by shortening the length of the open circuit branch and increasing the distance of the open circuit branch of the adjacent differential pair.
Description
Technical Field
The utility model relates to the technical field of DP connectors, in particular to a DP connector terminal and a DP connector female seat.
Background
DisplayPort, also known as a high definition digital display interface, is a digital video interface standard pushed by the video electronics standards institute, and is mainly adapted to connect a computer with a screen, or a computer with a home theater system.
As shown in fig. 1 to 3, which show the structure of the DP connector terminal and the DP connector socket commonly used at present, the conventional DisplayPort electrical connector includes a housing, an insulating body, an upper row of terminals and a lower row of terminals, wherein the upper row of terminals and the lower row of terminals are injection molded in the insulating body at one time, and the housing is wrapped outside the insulating body, on one hand, the open-circuit branch distance L1 of the contact head of the differential pair terminal is too long to generate resonance, which affects crosstalk and differential signal attenuation, and on the other hand, the distance L2 of the contact head of the adjacent differential pair terminal is too small (only 0.3 mm), which has a large effect on crosstalk due to the emission and absorption effects of the open-circuit branch; furthermore, the fixing portions of the DP connector terminals are designed in a single row, and the fixing portions A1 of the upper row of terminals and the lower row of terminals are arranged in a row, so that the distance L3 between the transmission path sections of the adjacent differential pair terminals a is too short, and the crosstalk is also affected due to the coupling effect. Specifically, fig. 13 to 15 can be seen to show the insertion loss, return loss and far-end crosstalk of the DP connector female socket of the prior art when the high-frequency simulation experiment analysis is performed.
Therefore, a new technical solution is needed to solve the above problems.
Disclosure of Invention
In view of the above, the present utility model is directed to providing a DP connector terminal and a DP connector socket, which greatly improve the loss and crosstalk of high frequency signals by shortening the length of the open circuit branch and increasing the distance between the open circuit branches of adjacent differential pairs.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the DP connector terminal comprises an upper row of terminals and a lower row of terminals, wherein the upper row of terminals and the lower row of terminals respectively comprise a plurality of contact terminals which are arranged side by side left and right, each contact terminal comprises a contact part, a fixing part and a connecting part which are connected in sequence, the front end of each contact part extends to form an open circuit branch which is buried in an insulating body, and differential signal pair terminals are defined in the plurality of contact terminals of the upper row of terminals and the lower row of terminals;
the front ends of the open circuit branches of the differential signal pair terminals are positioned behind the front ends of the open circuit branches of at least one other contact terminal, so that the lengths of the open circuit branches of the differential signal pair terminals are shortened; the method comprises the steps of carrying out a first treatment on the surface of the And two adjacent differential signal pair terminals, one of which comprises a first differential signal terminal and a second differential signal terminal, and the other of which comprises a third differential signal terminal and a fourth differential signal terminal, wherein the first differential signal terminal, the second differential signal terminal, the third differential signal terminal and the fourth differential signal terminal are sequentially arranged at intervals along the left-right direction, and the open-circuit branches of the second differential signal terminal and the third differential signal terminal are arranged in a manner of extending from the front end of the contact part to the front away from one another so as to enlarge the distance between the open-circuit branches of the second differential signal terminal and the third differential signal terminal, and further enlarge the distance between the open-circuit branches of the two adjacent differential signal pair terminals.
Preferably, the open branches of the same differential signal pair terminal extend from the front ends of the contact portions toward each other.
As a preferred solution, the front ends of the open branches of the differential signal pair terminals are located behind the front ends of the open branches of any other contact terminals.
As a preferred embodiment, the upper row of terminals and the lower row of terminals are arranged in two rows up and down in the fixing portion region.
As a preferable mode, the fixing portions of the second differential signal terminal and the third differential signal terminal are extended rearward from the rear ends of the respective contact portions away from each other, so as to increase the distance between the fixing portions of the second differential signal terminal and the third differential signal terminal. By separating this area of terminals into two rows, the increased distance between adjacent differential pair terminals improves crosstalk.
As a preferable mode, the differential signal pair terminals include four adjacent differential signal pair terminals, and are respectively defined as a first differential signal pair terminal, a second differential signal pair terminal, a third differential signal pair terminal, and a fourth differential signal pair terminal, and the open branches of the adjacent signal terminals of the adjacent signal pair terminals extend from the front ends of the contact portions toward the far side, so as to enlarge the distances between the first differential signal pair terminals, the second differential signal pair terminals, the third differential signal pair terminals, and the fourth differential signal pair terminals at the heads of the open branches.
Preferably, the fixing portions of adjacent signal terminals of adjacent signal pair terminals extend rearward from the rear ends of the corresponding contact portions away from each other, so as to increase the distance between the fixing portions of the first differential signal pair terminal, the second differential signal pair terminal, the third differential signal pair terminal, and the fourth differential signal pair terminal.
The DP connector female seat comprises a shell, an insulating body and a DP connector terminal arranged in the insulating body, wherein the DP connector terminal is any one of the DP connector terminals.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, in particular, the technical proposal can be known that the utility model shortens the length of the open circuit branch of the differential signal pair terminal and enlarges the open circuit branch distance of the adjacent differential pair by creatively designing the structure of the DP connector terminal, thereby greatly improving the loss and crosstalk problems of high-frequency signals; meanwhile, after the structure of the DP connector terminal is innovatively designed, the requirement of a simple production process can be met, so that the DP connector terminal is suitable for popularization, production and application.
In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a partial perspective view of a prior art DP connector female socket (containing an insulator body, upper and lower rows of terminals, not shown in the housing);
fig. 2 is a perspective view of upper and lower row terminals of a prior art DP connector female socket;
fig. 3 is another perspective view of upper and lower row terminals of a prior art DP connector female socket;
FIG. 4 is a partial perspective view of a DP connector female receptacle (including an insulator, upper row terminals and lower row terminals, not shown in the housing) in accordance with an embodiment of the utility model;
FIG. 5 is a perspective view (containing tape) of the upper and lower rows of terminals of the DP connector female unit in accordance with an embodiment of the present utility model;
FIG. 6 is a perspective view (blank out) of the upper and lower rows of terminals of the DP connector female housing in accordance with an embodiment of the present utility model;
FIG. 7 is a side view (blank out) of the upper and lower rows of terminals of the DP connector female housing in accordance with an embodiment of the utility model;
FIG. 8 is a perspective view of a DP connector female socket in accordance with an embodiment of the present utility model;
fig. 9 is an exploded view of a DP connector female socket of an embodiment of the present utility model.
FIG. 10 shows the insertion loss of a DP connector female unit during high frequency simulation test analysis according to an embodiment of the utility model;
FIG. 11 is a diagram showing the return loss of a DP connector female unit during high frequency simulation test analysis according to an embodiment of the utility model;
FIG. 12 is a schematic diagram showing the far-end crosstalk of a DP connector female unit during high-frequency simulation test analysis according to an embodiment of the present utility model;
FIG. 13 is a prior art DP connector female holder showing insertion loss during high frequency simulation test analysis;
FIG. 14 is a diagram showing the return loss of a prior art DP connector female connector unit when performing high frequency simulation experimental analysis;
fig. 15 is a diagram showing the far-end crosstalk of the DP connector female socket of the prior art when performing high-frequency simulation experimental analysis.
The attached drawings are used for identifying and describing: the housing 10, the insulating body 20, the primary injection molded piece 21, the secondary injection molded piece 22, the DP connector terminal 30, the upper row terminal 31, the lower row terminal 32, the contact portion 301, the fixing portion 302, the connecting portion 303, the first differential signal terminal 1, the second differential signal terminal 2, the third differential signal terminal 3, the fourth differential signal terminal 4, the open branch B, the bottom cover 40, the first differential signal pair terminal C1, the second differential signal pair terminal C2, the third differential signal pair terminal C3, and the fourth differential signal pair terminal C4.
Detailed Description
Referring to fig. 4 to 12, specific structures of embodiments of the present utility model are shown.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
A DP connector female socket comprises a shell 10, an insulating body 20 and a DP connector terminal 30 arranged in the insulating body 20. The shell 10 is a metal shell and also a shielding shell, the shell 10 is wrapped outside the insulating body 20, and the shell 10 and the insulating body 20 are fastened and riveted. Positioning pins extend downwards on the left side and the right side of the shell 10.
The insulator 20 includes a primary injection molding member 21 and a secondary injection molding member 22, the DP connector terminal 30 is first fixed in the primary injection molding member 21 by primary injection molding, the material strip at the head end of the DP connector terminal 30 is removed, and then the secondary injection molding is performed, and the secondary injection molding member 22 wraps the head end of the DP connector terminal 30 and is combined and fixed with the primary injection molding member 21.
And, a bottom cover 40 is assembled to the bottom of the insulating body 20.
In this embodiment, the structure of the DP connector terminal 30 is mainly innovatively designed. Specifically:
the DP connector terminal 30 comprises an upper row terminal 31 and a lower row terminal, wherein the upper row terminal 31 and the lower row terminal 32 comprise a plurality of contact terminals which are arranged side by side left and right, the contact terminals comprise a contact part 301, a fixing part 302 and a connecting part 303 (usually also referred to as a welding part) which are connected in sequence, the front end of the contact part 301 extends to form an open circuit branch B which is used for being buried in an insulating body 20, and differential signal pair terminals are defined in the contact terminals of the upper row terminal 31 and the lower row terminal 32; the front end of the open branch B of the differential signal pair terminal is located behind the front end of the open branch of at least one other contact terminal, so as to shorten the length L4 of the open branch of the differential signal pair terminal, while the length L5 of the open branch of the other contact terminal may not be limited. Typically the front ends of the open branches B of the differential signal pair terminals are located rearward of the front ends of the open branches B of any other contact terminals; and, two adjacent differential signal pair terminals, one of which includes a first differential signal terminal 1 and a second differential signal terminal 2, and the other of which includes a third differential signal terminal 3 and a fourth differential signal terminal 4, the first differential signal terminal 1, the second differential signal terminal 2, the third differential signal terminal 3 and the fourth differential signal terminal 4 are sequentially arranged at intervals along the left-right direction, and the open circuit branches B of the second differential signal terminal 2 and the third differential signal terminal 3 extend forward from the front end of the contact portion 301 away from each other, so as to increase the distance L6 between the open circuit branches B of the second differential signal terminal 2 and the third differential signal terminal 3, and further increase the distance between the open circuit branches B of the two adjacent differential signal pair terminals. The open branches B of the same differential signal pair terminal extend from the distal ends of the contact portions 301 toward the front side.
In this embodiment, four adjacent differential signal pair terminals are respectively defined as a first differential signal pair terminal C1, a second differential signal pair terminal C2, a third differential signal pair terminal C3, and a fourth differential signal pair terminal C4; the open circuit branches of the adjacent signal terminals of the adjacent signal pair terminals extend from the front ends of the contact portions to the sides away from each other, so as to increase the distance between the open circuit branch heads of the first differential signal pair terminal C1, the second differential signal pair terminal C2, the third differential signal pair terminal C3, and the fourth differential signal pair terminal C4. For example, the first differential signal pair terminal C1 and the second differential signal pair terminal C2 are separated by a distance L6 from the head of the open branch B. The open branches B of the same differential signal pair terminal extend from the distal ends of the contact portions 301 toward the front side.
And, the upper row of terminals 31 and the lower row of terminals 32 are arranged in two rows up and down in the area of the fixing portion 302. The fixing portions 302 of adjacent signal terminals of adjacent signal pair terminals extend rearward from the rear ends of the corresponding contact portions 301 away from each other, so as to increase the distance between the fixing portions of the first differential signal pair terminal C1, the second differential signal pair terminal C2, the third differential signal pair terminal C3, and the fourth differential signal pair terminal C4. For example, the first differential signal pair terminal C1 and the second differential signal pair terminal C2 are spaced apart from each other by a distance L7 from the fixed portion 302. By separating this area of terminals into two rows, the increased distance between adjacent differential pair terminals improves crosstalk.
Comparing fig. 10 to 12 with fig. 13 to 15, it can be seen that the DP connector female socket of the present embodiment is greatly improved in terms of insertion loss, return loss, far-end crosstalk, etc. compared with the prior art by performing high-frequency simulation experimental analysis.
The design of the utility model focuses on that the structure of the DP connector terminal 30 is innovatively designed, so that the length of an open branch B is shortened, the distance of the open branch B of an adjacent differential pair is increased, and the problems of loss and crosstalk of high-frequency signals are greatly improved; meanwhile, after the structure of the DP connector terminal 30 is innovatively designed, the requirement of a simple production process can be met, so that the DP connector terminal is suitable for popularization and production application.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.
Claims (8)
1. The DP connector terminal comprises an upper row of terminals and a lower row of terminals, wherein the upper row of terminals and the lower row of terminals respectively comprise a plurality of contact terminals which are arranged side by side left and right, each contact terminal comprises a contact part, a fixing part and a connecting part which are connected in sequence, the front end of each contact part extends to form an open circuit branch which is buried in an insulating body, and differential signal pair terminals are defined in the plurality of contact terminals of the upper row of terminals and the lower row of terminals; the method is characterized in that:
the front ends of the open circuit branches of the differential signal pair terminals are positioned behind the front ends of the open circuit branches of at least one other contact terminal; and two adjacent differential signal pair terminals, one of which comprises a first differential signal terminal and a second differential signal terminal, and the other of which comprises a third differential signal terminal and a fourth differential signal terminal, wherein the first differential signal terminal, the second differential signal terminal, the third differential signal terminal and the fourth differential signal terminal are sequentially arranged at intervals along the left-right direction, and the open-circuit branches of the second differential signal terminal and the third differential signal terminal are arranged in a manner of extending from the front end of the contact part to the front far away from one another so as to enlarge the distance between the open-circuit branches of the second differential signal terminal and the third differential signal terminal.
2. The DP connector terminal according to claim 1, characterized in that: the open-circuit branches of the same differential signal pair terminal extend from the front ends of the contact portions toward each other.
3. The DP connector terminal according to claim 1, characterized in that: the front ends of the open branches of the differential signal pair terminals are located rearward of the front ends of the open branches of any other contact terminals.
4. The DP connector terminal according to claim 1, characterized in that: the upper row of terminals and the lower row of terminals are arranged in two rows in the fixing portion area.
5. The DP connector terminal according to claim 4, wherein: the fixing parts of the second differential signal terminal and the third differential signal terminal extend backwards from the rear ends of the corresponding contact parts away from each other, so that the distance between the fixing parts of the second differential signal terminal and the third differential signal terminal is increased.
6. A DP connector terminal according to claim 1 or 5, characterized in that: the differential signal pair terminals comprise four adjacent differential signal pair terminals, and are respectively defined as a first differential signal pair terminal, a second differential signal pair terminal, a third differential signal pair terminal and a fourth differential signal pair terminal, and the open-circuit branches of the adjacent signal terminals of the adjacent signal pair terminals extend from the front ends of the contact parts to the front sides far away from each other, so that the distances between the open-circuit branch heads of the first differential signal pair terminals, the second differential signal pair terminals, the third differential signal pair terminals and the fourth differential signal pair terminals are increased.
7. The DP connector terminal according to claim 6, wherein: the fixing parts of the adjacent signal terminals of the adjacent signal pair terminals are extended backward from the rear ends of the corresponding contact parts at the sides far away from each other, so that the distances between the fixing parts of the first differential signal pair terminals, the second differential signal pair terminals, the third differential signal pair terminals and the fourth differential signal pair terminals are increased.
8. The utility model provides a DP connector female seat, including shell, insulator and set up in the DP connector terminal in the insulator, its characterized in that: the DP connector terminal is a DP connector terminal according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321658362.0U CN220382342U (en) | 2023-06-28 | 2023-06-28 | DP connector terminal and DP connector female seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321658362.0U CN220382342U (en) | 2023-06-28 | 2023-06-28 | DP connector terminal and DP connector female seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220382342U true CN220382342U (en) | 2024-01-23 |
Family
ID=89564076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321658362.0U Active CN220382342U (en) | 2023-06-28 | 2023-06-28 | DP connector terminal and DP connector female seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220382342U (en) |
-
2023
- 2023-06-28 CN CN202321658362.0U patent/CN220382342U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 523000, No. 138 Gangjian Road, Changping Town, Dongguan City, Guangdong Province Patentee after: Lianji Precision Electronics Co.,Ltd. Country or region after: China Address before: 523000 room 212, building 3, No. 42, Muxuan Chuangye 1st Road, Changping Town, Dongguan City, Guangdong Province Patentee before: Guangdong Lianji Precision Industry Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |