Improved LVDS connector

By adding solder pins and EMI multi-grounding structure to the LVDS connector, the problem of unstable soldering in traditional LVDS connectors is solved, achieving a stronger connection and better anti-crosstalk effect.

CN223402005UActive Publication Date: 2025-09-30DONGGUAN XINDA YITONG COMM TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422021663.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-20
Publication Date
2025-09-30
Estimated Expiration
2034-08-20

AI Technical Summary

Technical Problem

Traditional LVDS connectors have unstable welding during use, and the welding points are easily damaged after being subjected to force, affecting the function of the circuit board, and lack effective anti-crosstalk measures.

Method used

Add multiple welding feet and EMI multi-grounding structure to enhance the connection stability by increasing the contact between the welding feet and the metal shell, and set a guide structure at the insertion groove to reduce friction resistance.

Benefits of technology

The robustness of the LVDS connector after welding is improved, the risk of loosening is reduced, the anti-crosstalk effect is enhanced, and the stability and durability of the connection are improved.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223402005U_ABST
    Figure CN223402005U_ABST
Patent Text Reader

Abstract

The utility model discloses an improved LVDS (Low Voltage Differential Signaling) connector, which comprises an insulating base, a metal shell and a plurality of signal terminals, the metal shell is covered outside the insulating base, and the front surface of the insulating base is provided with an insertion groove for inserting an LVDS flat cable. A first bent pin and a second bent pin are inwards arranged on the left side, the right side and the top of an opening in the front face of the metal shell respectively, a plurality of first welding pins are convexly arranged on the front face of the bottom of the metal shell at intervals, and second welding pins are convexly arranged at the two ends of the back face of the bottom of the metal shell respectively. The first bent pin and the second bent pin are respectively inserted into the insulating base, and the bent parts of the first bent pin and the second bent pin form chamfer structures on the upper side, the left side and the right side of the insertion end of the insertion groove. According to the utility model, when the LVDS flat cable is inserted, the LVDS flat cable can be contacted with the two sides of the metal shell, through multiple grounding of EMI, the anti-crosstalk effect is better, and the connection durability is enhanced, so that the welded LVDS connector is firmer, and the possibility of loosening in the use process is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of board-end connectors, and more particularly to an improved LVDS connector. Background Art

[0002] LVDS connectors, short for Low Voltage Differential Signaling, are used for high-speed data transmission and are widely used in electronics and communications equipment. Traditional LVDS connectors only have solder points between the signal terminals and the two grounding pins on the metal housing. Because LVDS connectors are inserted directly into the connector, they are subject to significant force. Insufficient soldering force can damage the solder joints, potentially leading to unstable soldering and affecting the functionality of the entire circuit board. Utility Model Content

[0003] The purpose of the present invention is to overcome the above-mentioned defects in the prior art and provide an improved LVDS connector that has multiple soldering pins compared to the traditional LVDS connector, has better anti-crosstalk effect through multiple EMI grounding, makes the soldered LVDS connector more secure, and reduces loosening during use.

[0004] To achieve the above-mentioned purpose, the present invention provides an improved LVDS connector, comprising an insulating base, a metal shell, and a plurality of signal terminals. The metal shell has openings at both ends and is covered on the outside of the insulating base. The front of the insulating base is provided with an insertion groove for inserting the LVDS cable. The left and right sides of the front opening of the metal shell are respectively provided with first bent pins facing inward. The top of the front opening of the metal shell is provided with a plurality of second bent pins facing inward at intervals. The bottom front of the metal shell is provided with a plurality of first welding pins protruding at intervals. The bottom back of the metal shell is provided with second welding pins protruding at both ends. The first bent pins are provided with a plurality of first welding pins protruding at intervals. The first bent pin and the second bent pin are respectively inserted into the insulating base, the bending parts of the first bent pin and the second bent pin form chamfered structures for guiding the LVDS cable on the upper side and left and right sides of the insertion end of the insertion groove, the insulating base is provided with a plurality of terminal mounting grooves along its length direction, the signal terminals are respectively installed in their corresponding terminal mounting grooves, and the bottom of each terminal mounting groove is provided with a avoidance hole located inside the insertion groove and for the signal terminal to sink, the top edge of the front opening of the insertion groove is provided with a first inclined guide surface inclined from the outside to the inside, and the front end of each terminal mounting groove is respectively provided with a second inclined guide surface inclined from the inside to the outside.

[0005] Preferably, third welding legs are protruded from the left and right outer sides of the metal shell respectively.

[0006] Preferably, the signal terminal includes a terminal base portion, a terminal contact portion and a terminal welding portion, the terminal contact portion and the terminal welding portion are respectively connected to the two ends of the terminal base portion, the terminal contact portion is hook-shaped and protrudes downward from the terminal base portion, and one end of the terminal welding portion is bent downward and then bent into a horizontal state and remains parallel to the terminal base portion.

[0007] Preferably, the insulating base is provided with a plurality of terminal mounting holes passing through the terminal mounting slots along its length direction, the terminal base parts are respectively inserted into the corresponding terminal mounting slots and terminal mounting holes, the terminal contact parts protrude from the top of the terminal mounting slots when the LVDS cable is not inserted, and the terminal welding parts are respectively located on the outside of the terminal mounting holes and extend from the bottom of the insulating base.

[0008] Preferably, the thickness of the terminal contact portion is smaller than the thickness of the terminal base portion and the terminal welding portion.

[0009] Preferably, two limiting steps are provided on the bottom surface of the insertion groove, which extend backward and increase in steps and correspond to the bottom of the terminal base portion and the terminal contact portion respectively.

[0010] Preferably, two retaining hooks are respectively provided on the bottom end surface of each first bent pin, and the ends of the retaining hooks respectively protrude from the bottom end surface of the first bent pin and are located on the side of the insertion end close to the insertion groove.

[0011] Preferably, the first welding leg, the second welding leg and the third welding leg respectively protrude downward from the bottom surface of the metal shell.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model has a simple structure and reasonable design. Compared with the traditional LVDS connector, it adds multiple welding pins. When the LVDS cable is inserted, it can contact both sides of the metal shell. Through multiple EMI grounding, the anti-crosstalk effect is better, and the stability and durability of the connection are enhanced. The welded LVDS connector is more secure, reducing the possibility of loosening during use, and eliminating the risk of unstable product welding due to excessive plugging force when the customer uses it.

[0014] 2. The utility model provides chamfers and bevels on the upper, lower, left and right sides of the insertion groove opening, which are conducive to guiding the LVDS cable when inserting, guiding its smooth insertion, reducing unnecessary friction resistance, and thus improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a front structural diagram of an improved LVDS connector provided by an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the back structure of an improved LVDS connector provided by an embodiment of the present utility model;

[0018] Figure 3 This is a partial structural enlarged schematic diagram of an improved LVDS connector provided by an embodiment of the present utility model;

[0019] Figure 4 This is an exploded schematic diagram of an improved LVDS connector provided by an embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of a top view of a metal housing of an improved LVDS connector provided by an embodiment of the present utility model;

[0021] Figure 6 This is a schematic structural diagram of a signal terminal of an improved LVDS connector provided by an embodiment of the present utility model;

[0022] Figure 7 This is a schematic cross-sectional view of an improved LVDS connector provided by an embodiment of the present utility model;

[0023] Figure 8 This is a schematic diagram of the assembly of an improved LVDS connector provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0025] Please refer to Figure 1An embodiment of the present utility model provides an improved LVDS connector, including an insulating base 1, a metal shell 2, and a plurality of signal terminals 3. The following describes the various components of this embodiment in detail with reference to the accompanying drawings.

[0026] like Figure 1 、 Figure 2 and Figure 4 As shown, both ends of the metal shell 2 are open and can be covered on the outside of the insulating base 1. The front of the insulating base 1 is provided with an insertion groove 11 for inserting the LVDS cable. The left and right sides of the front opening of the metal shell 2 are respectively provided with first bent pins 21 facing inward, and the top of the front opening of the metal shell 2 is provided with a plurality of second bent pins 22 facing inward at intervals. The bottom front of the metal shell 2 is provided with a plurality of first welding pins 24 protruding at intervals, and the two ends of the bottom back of the metal shell 2 are respectively provided with second welding pins 25 protruding. The first bent pin 21 and the second bent pin 22 are respectively inserted into the insulating base 1, and the bending parts of the first bent pin 21 and the second bent pin 22 form chamfered structures for guiding the LVDS cable on the upper side and left and right sides of the insertion end of the insertion groove 11.

[0027] like Figure 3 As shown, the insulating base 1 can be provided with a plurality of terminal mounting grooves 12 along its length direction, and the signal terminals 3 are respectively installed in their corresponding terminal mounting grooves 12. The bottom of each terminal mounting groove 12 is provided with a avoidance hole 121 located inside the insertion groove 11 and for the signal terminal 3 to sink. The top edge of the front opening of the insertion groove 11 is provided with a first inclined guide surface 111 inclined from the outside to the inside, and the front end of each terminal mounting groove 12 is respectively provided with a second inclined guide surface 112 inclined from the inside to the outside.

[0028] Among them, the upper, lower, left and right sides of the opening of the insertion groove 11 of the insulating base 1 are respectively provided with chamfers and bevels, which are conducive to guiding the LVDS cable when inserting, guiding it to insert smoothly, and can reduce unnecessary friction resistance, thereby improving user experience.

[0029] Furthermore, the avoidance hole 121 for the signal terminal 3 to be sunken can increase the characteristic impedance in high frequency, and the signal terminal 3 can avoid the main body of the insulating base 1 through the avoidance hole 121, which can reduce the interference force generated between the signal terminal 3 and the insulating base 1 when the LVDS cable is inserted into the insertion groove 11, thereby preventing the LVDS cable from being damaged when it is pulled out.

[0030] Preferably, third welding legs 26 may be protruded from the left and right outer sides of the metal shell 2 .

[0031] In this embodiment, a first welding pin 24 and a second welding pin 25 are added to the third welding pins 26 provided on the left and right outer sides of the metal shell 2 based on the traditional LVDS connector. Six first welding pins 24 are evenly spaced, and two second welding pins 25 are provided and are respectively located at both ends of one side of the metal shell 2. Compared with the traditional welding pins only on the left and right sides, multiple grounding can be achieved. When the LDVS cable is inserted, the electrical contact between the two sides and the metal shell enhances the anti-interference ability, reduces crosstalk, improves the signal integrity, and also enhances the stability and durability of the connection, making the structure more solid after welding and reducing the possibility of loosening during use.

[0032] like Figure 5 As shown, two retaining hooks 211 can be respectively provided on the bottom end surface of each first bent pin 21 , and the ends of the retaining hooks 211 respectively protrude from the bottom end surface of the first bent pin 21 and are located on the insertion end side close to the insertion groove 11 .

[0033] Specifically, the first welding leg 24 , the second welding leg 25 and the third welding leg 26 may respectively protrude downward from the bottom surface of the metal housing 2 .

[0034] like Figure 6 As shown, the signal terminal 3 may include a terminal base portion 31, a terminal contact portion 32 and a terminal welding portion 33. The terminal contact portion 32 and the terminal welding portion 33 are respectively connected to the two ends of the terminal base portion 31. The terminal contact portion 32 is hook-shaped and protrudes downward from the terminal base portion 31. One end of the terminal welding portion 33 is bent downward and then bent into a horizontal state and remains parallel to the terminal base portion 31.

[0035] In this embodiment, the insulating base 1 can be provided with a plurality of terminal mounting holes 13 passing through the terminal mounting slots 12 along its length direction. The terminal base portions 31 are respectively inserted into the corresponding terminal mounting slots 12 and terminal mounting holes 13. The terminal contact portions 32 protrude from the top of the terminal mounting slots 12 when the LVDS cable is not inserted. The terminal welding portions 33 are respectively located on the outside of the terminal mounting holes 13 and extend from the bottom of the insulating base 1.

[0036] Preferably, the thickness of the terminal contact portion 32 can be thinner than the thickness of the terminal base portion 31 and the terminal soldering portion 33. Thinning the terminal contact portion 32 of the signal terminal 3 can increase the engagement force between the signal terminal 3 and the LVDS cable, resulting in better contact and greater conductivity, and reducing the risk of open circuits.

[0037] like Figure 7 As shown, the bottom surface of the insertion groove 11 may be provided with two limiting steps 113 extending backward and increasing in steps and corresponding to the bottom of the terminal base portion 31 and the terminal contact portion 32 respectively.

[0038] The limiting step 113 and the retaining hook 211 of the first bent pin 21 can reduce the possibility of the signal terminal 3 and the LVDS cable being loosened during the connection process.

[0039] like Figure 8 As shown, when working, the LVDS connector is connected to the PCB board 4, and each first welding foot 24, second welding foot 25 and third welding foot 26 respectively corresponds to the soldering point position on the PCB board 4. After welding, the LVDS connector is more secure, eliminating the risk of unstable welding of the LVDS connector due to excessive plugging force when used by customers.

[0040] In summary, compared with the traditional LVDS connector, the present invention adds multiple welding pins. When the LVDS cable is inserted, it can contact both sides of the metal shell. Through multiple EMI grounding, the anti-crosstalk effect is better, and the stability and durability of the connection are enhanced. The welded LVDS connector is more secure, reducing the possibility of loosening during use, and eliminating the risk of unstable product welding due to excessive insertion force when the customer uses it.

[0041] The above embodiments are preferred implementation methods of the present invention, but the implementation methods of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. An improved LVDS connector, characterized in that: The invention comprises an insulating base (1), a metal shell (2) and a plurality of signal terminals (3), wherein the two ends of the metal shell (2) are opened and covered on the outside of the insulating base (1), the front of the insulating base (1) is provided with an insertion groove (11) for inserting an LVDS cable, the left and right sides of the front opening of the metal shell (2) are respectively provided with first bent pins (21) facing inward, the top of the front opening of the metal shell (2) is provided with a plurality of second bent pins (22) facing inward, the bottom front of the metal shell (2) is provided with a plurality of first welding pins (24) at intervals, and the two ends of the bottom back of the metal shell (2) are respectively provided with second welding pins (25), the first bent pin (21) and the second bent pin (22) are respectively inserted into the insulating base ( 1), the bending parts of the first bent pin (21) and the second bent pin (22) form chamfered structures for guiding LVDS cables on the upper side and left and right sides of the insertion end of the insertion groove (11), the insulating base (1) is provided with a plurality of terminal mounting grooves (12) along its length direction, the signal terminals (3) are respectively installed in their corresponding terminal mounting grooves (12), the bottom of each terminal mounting groove (12) is provided with a avoidance hole (121) located inside the insertion groove (11) and for the signal terminal (3) to sink, the top edge of the front opening of the insertion groove (11) is provided with a first inclined guide surface (111) inclined from the outside to the inside, and the front end of each terminal mounting groove (12) is respectively provided with a second inclined guide surface (112) inclined from the inside to the outside.

2. The improved LVDS connector according to claim 1, wherein: Third welding legs (26) are respectively protruded from the left and right outer sides of the metal shell (2).

3. The improved LVDS connector according to claim 1, wherein: The signal terminal (3) comprises a terminal base portion (31), a terminal contact portion (32) and a terminal welding portion (33); the terminal contact portion (32) and the terminal welding portion (33) are respectively connected to two ends of the terminal base portion (31); the terminal contact portion (32) is hook-shaped and protrudes downward from the terminal base portion (31); one end of the terminal welding portion (33) is bent downward and then bent into a horizontal state and remains parallel to the terminal base portion (31).

4. The improved LVDS connector according to claim 3, wherein: The insulating base (1) is provided with a plurality of terminal mounting holes (13) penetrating the terminal mounting slots (12) along its length direction; the terminal base parts (31) are respectively inserted into the corresponding terminal mounting slots (12) and terminal mounting holes (13); the terminal contact parts (32) protrude from the top of the terminal mounting slots (12) when the LVDS cable is not inserted; and the terminal welding parts (33) are respectively located outside the terminal mounting holes (13) and protrude from the bottom of the insulating base (1).

5. The improved LVDS connector according to claim 3, wherein: The thickness of the terminal contact portion (32) is smaller than the thickness of the terminal base portion (31) and the terminal welding portion (33).

6. The improved LVDS connector according to claim 3, wherein: The bottom surface of the insertion groove (11) is provided with two limiting steps (113) extending backward and increasing in steps and corresponding to the bottom of the terminal base portion (31) and the terminal contact portion (32) respectively.

7. The improved LVDS connector according to claim 1, wherein: Two anti-retraction hooks (211) are respectively provided on the bottom end surface of each first bent plug pin (21), and the ends of the anti-retraction hooks (211) respectively protrude from the bottom end surface of the first bent plug pin (21) and are located on the side of the insertion end close to the insertion groove (11).

8. The improved LVDS connector according to claim 2, wherein: The first welding leg (24), the second welding leg (25) and the third welding leg (26) respectively protrude downward from the bottom surface of the metal shell (2).