LVDS connector

Abstract

The present invention proposes an LVDS connector, comprising a first connecting member, wherein the first connecting member comprises an upper shell and a lower shell, the side edges of the upper shell and the lower shell respectively form a bending portion, and the bending portions cooperate with each other to clamp the upper shell and the lower shell, and a accommodating cavity is formed between the upper shell and the lower shell, an upper injection molded part is provided in the accommodating cavity, the upper injection molded part extends out of the accommodating cavity, and PIN pins arranged in sequence are embedded in the injection molded part, and an anti-retraction portion is provided at one end of the PIN pin located outside the accommodating cavity, and the anti-retraction portion is located on both sides of the extension direction of the PIN pin, one side protrudes from the PIN pin, and the other side is sunken into the PIN pin. By having the anti-retraction portion protruding from the PIN pin on one side and sunken into the PIN pin on one side, the problem of PIN retreat can be solved, and the problem of reducing the spacing between PIN pins can be achieved. At the same time, the structure of the connector is adjusted, the overall structure is reduced, the width of the connector is ensured to be small, and the connector assembly is more stable.

Description

Technical Field

[0001] The present invention relates to the field of connectors, in particular to an LVDS connector. Background Art

[0002] The LVDS interface is a digital video signal transmission method developed to overcome the drawbacks of TTL-level transmission of broadband, high-bitrate data, such as high power consumption and significant electromagnetic interference. LVDS is a low-swing differential signaling technology that enables signal transmission at rates of several hundred Mbps across differential PCB traces or balanced cables. Its low voltage swing and low current drive outputs achieve low noise and power consumption. LVDS is increasingly used in systems requiring high signal integrity, low jitter, and common-mode characteristics, and is commonly found in LCD televisions.

[0003] The existing LVDS connectors are divided into 7-pin, 12-pin and 20-pin types according to their PIN pins. The processing technology is as follows: after the PIN pins are stamped and formed by stamping and other processes, the PIN pins are placed in the mold through an injection mold, and the terminals are positioned and formed by injection molding through the setting of the cavity, and then the shell is assembled. However, due to the limitations of the stamping process, when the processing material is 0.2mm thick, the distance of the knife is limited. Taking 10-pin as an example, the design of the product structure and the end of the PIN pin are mainly trapezoidal, which results in the spacing between adjacent PIN pins being too small, and the PIN pins are difficult to stamp and form, resulting in the minimum width of the entire connector reaching 8.8mm, while the size of 12-pin is larger. Then, in existing practical applications, the size requirements of the connector are getting smaller and smaller, that is, the width requirement is small, and the performance requirements are getting higher and higher. Only by reducing the size of the connector under the premise of meeting the performance can it adapt to the current product applications. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention proposes an LVDS connector, comprising a first connector, wherein the first connector comprises an upper shell and a lower shell,

[0005] The sides of the upper shell and the lower shell are respectively formed with bent parts, and the bent parts cooperate with each other to clamp the upper shell and the lower shell.

[0006] A receiving cavity is formed between the upper shell and the lower shell, and an upper injection molded part is provided in the receiving cavity. The upper injection molded part extends out of the receiving cavity, and conductive components arranged in sequence are embedded in the injection molded part to form an external plug-in end. A lead opening is provided between the upper shell and the lower shell on a side opposite to the upper injection molded part.

[0007] An anti-retreat portion is provided at one end of the conductive component located outside the accommodating cavity. The anti-retreat portion is located on both sides of the extension direction of the conductive component, with one side protruding from the conductive component and the other side recessed into the conductive component.

[0008] Preferably, the number of the conductive components is 12, and the width of the upper injection molded part extending out of the accommodating cavity section is at least 6.75 mm.

[0009] Preferably, the upper shell includes a main body, and downwardly bent portions are integrally formed on both sides of the main body close to the external plug-in end. The downwardly bent portions are lower than the plane where the main body is located, and the downwardly bent portions are arranged in cooperation with the lower shell.

[0010] Preferably, the bending portion is integrally formed on both sides of the main body of the upper shell, the bending portion forms a first U-shaped structure, and snap-fits are provided on both sides of the opening of the first U-shaped structure. The bending portion of the lower shell forms a second U-shaped structure and the opening is inserted into the bending portion of the upper shell, and limit blocks are provided on both sides of the opening of the second U-shaped structure, and the limit blocks are buckled at the snap-fits.

[0011] Preferably, the lower shell is provided with an upturned portion, the upturned portion is provided with a protruding portion, and the protruding portion is engaged and connected with the downturned portion.

[0012] Preferably, the upper injection molded part is embedded in the lower shell, and is provided with receiving grooves on both sides. The upward-curved part is located in the receiving groove, and the receiving groove mouth protrudes from the downward-curved part.

[0013] Preferably, the downwardly bent portion is provided with an arc portion in the plugging direction of the connector.

[0014] Preferably, an isolation strip is provided at one end of the upper injection molded part pointing to the lead-out port, and a positioning portion is integrally formed with the extension portion of the cable connecting portion, and the positioning portion is used to position the conductive component.

[0015] Preferably, it also includes a second connector, which includes a lower injection molded part that is configured to match the shape of the first connector, a socket is formed inside the lower injection molded part, a plug-in terminal is provided in the socket, the plug-in terminal corresponds to the conductive component, and a metal shell is provided on the lower injection molded part.

[0016] Preferably, the metal shell is provided with a bending foot, which is inserted into the lower injection molded part; the metal shell is provided with a bending elastic foot near the socket, which extends in the opposite direction to the socket. During assembly, the bending elastic foot is pressed on the first connecting piece.

[0017] The LVDS connector proposed by the present invention has the following beneficial effects: by having a conductive component protruding on one side and an anti-retraction portion recessed in the conductive component on one side, the problem of PIN withdrawal can be solved, and the problem of reducing the spacing between the conductive components can be achieved. At the same time, the structure of the connector is adjusted, the overall structure is reduced, while still maintaining the charging performance of the connector, and the connector assembly is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0019] Figure 1 is a three-dimensional schematic diagram of the connector of the present invention;

[0020] Figure 2 is a perspective schematic diagram of the first connecting member of the present invention;

[0021] Figure 3 is a schematic diagram of the back side of the first connecting member of the present invention;

[0022] Figure 4 Schematic diagram of the upper injection molded part of the present invention;

[0023] Figure 5 Schematic diagram of the assembly of the upper shell and the lower shell of the present invention;

[0024] Figure 6 Schematic diagram of the conductive component of the present invention;

[0025] Figure 7 is a perspective schematic diagram of the second connecting member of the present invention;

[0026] Figure 8 is a cross-sectional view of the connector of the present invention;

[0027] Figure 9 is an exploded view of the first connecting member of the present invention;

[0028] Figure 10 is an exploded view of the second connecting member of the present invention;

[0029] Figure 11 Schematic diagram of the assembly of the upper injection molded part and the lower housing of the present invention;

[0030] Among them, 1. first connecting part; 2. second connecting part; 3. upper shell; 4. lower shell; 5. accommodating cavity; 6. tin injection port; 7. upper injection molded part; 8. conductive component; 9. lead port; 10. anti-retraction part; 11. main body; 12. bending part; 13. bayonet; 14. limit block; 15. upward part; 16. protruding part; 17. arc-shaped part; 18. isolation strip; 19. positioning part; 20. lower injection molded part; 21. socket; 22. plug-in terminal; 23. metal shell; 24. bending foot; 25. downward bending part; 26. bending elastic foot; 27. inclined surface; 28. plane; 29. limit assembly; 30. receiving groove; 31. protruding block; 32. round hole. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] like Figure 1 、 Figure 5 As shown, the present invention proposes an LVDS connector, including a first connector 1, which includes an upper shell 3 and a lower shell 4. The structure of the upper shell 3 includes a body 11, and bent portions 12 on both sides of the end of the body 11. Of course, the lower shell 4 is also provided with a bent portion 12 to cooperate with it. The bent portions 12 on both sides of the body 11 of the upper shell 3 are integrally formed, and the bent portions 12 form a first U-shaped structure. The first U-shaped structure has bayonet 13 on both sides of the opening. The bent portion 12 of the lower shell 4 forms a second U-shaped structure and the mouth is inserted into the bent portion of the upper shell 3. In the part 12, limit blocks 14 are provided on both sides of the opening of the second U-shaped structure, and the limit blocks 14 are buckled at the bayonet 13. An inclined surface 27 is provided on the protruding side of the limit block 14, and a flat surface 28 is provided at the bottom of the inclined surface 27, so that when the bayonet 13 of the first U-shaped structure is pressed together, it can move downward along the inclined surface 27. After being pressed into place, it is limited by the flat surface 28 and will not slide out, which is convenient for assembly. The opening can also be set on the second U-shaped structure, and the limit block 14 is set on the first U-shaped structure. At this time, the flat surface 28 of the limit block 14 is at the upper part, and the inclined surface 27 is downward, which is convenient for insertion.

[0033] like Figure 2As shown, the assembly of the upper shell 3 and the lower shell 4 can be achieved by assembling the bending portion 12, and a accommodating cavity 5 is formed between the upper shell 3 and the lower shell 4, and an upper injection molded part 7 is provided in the accommodating cavity 5. The upper injection molded part 7 extends out of the accommodating cavity 5, and the injection molded part is embedded with conductive components 8 arranged in sequence. The conductive components 8 can be PIN needles to form an external plug-in end, and the injection molded part is not completely fitted in the accommodating cavity 5. A lead opening 9 is provided on the other side of the upper injection molded part 7 extending out of the accommodating cavity 5 to facilitate the connection of the conductive component 8 to the cable and the motherboard. Therefore, a tin injection port 6 is provided on the upper shell 3 for easy operation.

[0034] like Figure 4 As shown, the upper injection molded part 7 is matched with the lower shell 4 through injection molding, so the upper injection molded part 7 is provided with a protruding block 31 at the position corresponding to the bending portion 12 of the lower shell 4, and the protruding block 31 is stuck in the bending portion 12, and the bending portion 12 is provided with a circular hole 32. The upper injection molded part 7 is provided with a circular protrusion pressed in the circular hole 32 to ensure a stable connection between the upper injection molded part and the upper shell, and there is a right-angled part at the connection between the bending portion 12 and the main body 11, and the upper injection molded part 7 corresponding to the right-angled part also has injection molding material to ensure the stability of the connection between the lower shell 4 and the upper injection molded part 7.

[0035] like Figure 4 、 Figure 6 As shown, the conductive component 8 passes through the upper injection molded part 7 and is embedded in the upper injection molded part 7. Specifically, the conductive component 8 is provided with an anti-retraction portion 10 at one end outside the accommodating cavity 5. The anti-retraction portion 10 is located on both sides of the extension direction of the conductive component 8, one side protrudes from the conductive component 8, and the other side is sunken into the conductive component 8. The conductive component 8 is a curved section. On the one hand, it can ensure the stability of the conductive component 8 and the plastic part, and prevent the PIN from being withdrawn during multiple insertions. "PIN withdrawal" refers to the separation of the conductive component and the plastic part. The anti-retraction portion 10 inclined on the same side can ensure that the distance between the conductive components 8 is the same, ensuring that the conductive components 8 have a high yield rate during the stamping process, and ensuring that the stamping process can fill the maximum process of about 0.3mm under the premise of the same PIN number. The width of the entire connector is reduced. Taking 12PIN as an example, combined with the width of the conductive component 8, the connector width can reach 6.75mm. Compared with the existing conductive component 8 structure with protruding on both sides, it will inevitably cause the overall length to increase. If the conductive component 8 is too thin, the problem of stamping power cannot be achieved will also occur. However, it is not limited to 12PIN. Connectors with any PIN number can be equipped with the above structure to obtain a smaller structure than the existing method.

[0036] The conductive component 8 extending from the other side of the injection molded part is used for soldering. An isolation strip 18 is arranged at one end of the upper injection molded part 7 pointing to the lead port 9. The isolation strip 18 can separate the conductive component 8, and the isolation strip 18 is on the plane 28 where the conductive component 8 is located to prevent the conductive component 8 from overflowing when soldering. A positioning portion 19 is integrally formed with the extension portion of the cable connection portion. The positioning portion 19 is used to position the conductive component 8. The setting of the positioning portion 19 ensures that the conductive component 8 does not deviate on the upper injection molded part 7.

[0037] like Figure 4 As shown, in order to design a smaller connector, the edges of the conductive component 8 at the connector's mating portion are free of redundant structures, with only a raised stopper assembly 29. The stopper assembly is arranged in a narrow, elongated block and extends along the mating direction, slightly protruding from the plane formed by the conductive components. Furthermore, since the body 11 portion is not securely mated with only the ends, a snap-fitting portion similar in structure to the bent portion 12 is also provided on the body 11 portion of the upper shell 3. These snap-fitting portions are located on both sides of the upper injection molded part 7. The two sides here refer to the two sides in the mating direction of the connector. Specifically, the lower shell 4 is provided with an upturned portion 15, which is provided with a protrusion 16. Downturned portions 25 are integrally formed on both sides of the body 11 near the outer mating end. The protrusions 16 engage with the downturned portions 25, thereby reducing the width of the plug in the front direction and reducing its volume. It should be noted that the downturned portion 25 is provided with an arcuate portion 17 in the mating direction of the connector. The arcuate portion 17 ensures better alignment with the second connector 2 when mated.

[0038] In addition, if Figure 1 、 Figure 9 Figure 11 As shown, in order to ensure the assembly stability with the second connecting member 2, the lower bend 25 is lower than the plane 28 where the main body 11 is located, and the lower bend 25 is arranged in conjunction with the lower shell 4, and the cooperation method is also in the form of the bayonet 13 and the limit block 14, which will not be repeated here. In particular, a downward arc section is integrally formed between the main body 11 and the lower bend 25 to ensure that the lower bend 25 is lower than the main body 11. When the second connecting member 2 is plugged in, its shell can be pressed above the lower bend 25, and due to the existence of the height difference, it is partially flat with the main body 11, the assembly is more stable, and the overall structure is flat without protrusions, reducing the volume of the entire connector.

[0039] In addition, if Figure 4As shown, to facilitate the assembly of the second connector 2, the upper injection molded part 7 is embedded in the lower shell 4 and provided with receiving grooves 30 on both sides. The upturned portion 15 is located in the receiving grooves 30, and the mouth of the receiving groove 30 protrudes from the downturned portion 25. The receiving grooves 30 on both sides are recessed structures. On the one hand, they are used to accommodate the downturned portion 25 and the upturned portion 15, which can reduce the thickness of the connector assembly. On the other hand, after the upper shell 3 and the lower shell 4 are assembled, the downturned portion 25 is still lower than the receiving grooves 30, so that the second connector 2 can be mated therewith. The structure of the second connector 2 is reviewed in detail below.

[0040] like Figure 7 、 Figure 10 As shown, the second connector 2 includes a lower injection molded part 20 that is configured to match the shape of the first connector 1. In this embodiment, the structure of the upper injection molded part 7 is T-shaped, so the second connector 2 is designed to be U-shaped, but is not limited to the above shape. A socket 21 is formed inside the lower injection molded part 20 to facilitate the insertion of the plug-in end of the first connector 1 into the socket 21. A plug-in terminal 22 is provided in the socket 21, and the plug-in terminal 22 corresponds to the conductive component 8. The other terminal is U-shaped, with an opening facing outward, and is aligned with the conductive component 8 in a clamping form. The closed end of the U-shape extends out of the lower injection molded part 20 for connection to the wiring, and a pressing portion is provided on one side of the U-shaped opening to ensure clamping with the conductive component 8. A metal shell 23 is provided on the lower injection molded part 20, and a bending leg 24 is provided on the metal shell 23. The structure of the bending leg 24 is to be folded 110°-180° from the side wall of the lower shell 4 to ensure that it is pressed on the first connector 1 inside the metal shell 23.

[0041] The bending foot 24 is inserted into the lower injection molded part 20; the metal shell 23 is provided with a bending elastic foot 26 near the socket 21, and the bending elastic foot 26 extends in the opposite direction of the socket 21. During assembly, the bending elastic foot 26 is pressed on the first connecting member 1, and the first connecting member 1 and the second connecting member 2 are plugged in through the above-mentioned bending elastic foot 26. When the two are matched, the bending elastic foot 26 slides along the side wall of the first connecting member 1 and is deformed under pressure, and cooperates with the receiving groove 30 of the first plug-in member. The receiving groove 30 is slightly sunken to ensure that the possibility of natural retreat of the bending elastic foot 26 is reduced after insertion.

Claims

1. An LVDS connector, comprising a first connector, wherein the first connector comprises an upper shell and a lower shell, The sides of the upper shell and the lower shell are respectively formed with bent parts, and the bent parts cooperate with each other to clamp the upper shell and the lower shell, characterized in that: An accommodating cavity is formed between the upper shell and the lower shell, and an upper injection molded part is provided in the accommodating cavity. The upper injection molded part extends out of the accommodating cavity, and conductive components arranged in sequence are embedded in the injection molded part to form an external plug-in end. A lead opening is provided between the upper shell and the lower shell on the side opposite to the upper injection molded part; an isolation strip is provided at an interval at one end of the upper injection molded part pointing to the lead opening, and the isolation strip is higher than the plane where the conductive components are located; The upper shell body has a bent portion integrally formed on both sides thereof, the bent portion of the upper shell forming a first U-shaped structure, the first U-shaped structure having a bayonet provided on both sides of its opening, the bent portion of the lower shell forming a second U-shaped structure, the opening of which is inserted into the bent portion of the upper shell, the second U-shaped structure having a limit block provided on both sides of its opening, the limit block being buckled at the bayonet; The conductive component is provided with an anti-retreat portion at one end outside the accommodating cavity. The anti-retreat portion is located on both sides of the extension direction of the conductive component, one side protrudes from the conductive component, and the other side is sunken into the conductive component. The conductive component is a curved section, and the anti-retreat portions inclined on the same side ensure that the distance between the conductive components is the same.

2. The LVDS connector according to claim 1, wherein: The number of the conductive components is 12, and the width of the upper injection molded part extending out of the accommodating cavity section is at least 6.75 mm.

3. The LVDS connector according to claim 1, wherein: The upper shell includes a main body, and downwardly bent portions are integrally formed on both sides of the main body close to the external plug-in end. The downwardly bent portions are lower than the plane where the main body is located, and the downwardly bent portions are arranged in cooperation with the lower shell.

4. The LVDS connector according to claim 3, wherein: The lower shell is provided with an upward-curving portion, the upward-curving portion is provided with a protruding portion, and the protruding portion is engaged and connected with the downward-curved portion.

5. The LVDS connector according to claim 4, wherein: The upper injection molded part is embedded in the lower shell, and is provided with receiving grooves on both sides. The upward-curved part is located in the receiving groove, and the receiving groove mouth protrudes from the downward-curved part.

6. The LVDS connector according to claim 3, wherein: The lower bent portion is provided with an arc portion in the plugging direction of the connector.

7. The LVDS connector according to claim 1, wherein: It also includes a second connecting member, which includes a lower injection molded part that is configured to match the shape of the first connecting member. A socket is formed inside the lower injection molded part, and a plug-in terminal is provided in the socket. The plug-in terminal corresponds to the conductive component, and a metal shell is provided on the lower injection molded part.

8. The LVDS connector according to claim 7, wherein: The metal shell is provided with a bending foot, which is inserted into the lower injection molded part; the metal shell is provided with a bending elastic foot near the socket, which extends in the opposite direction to the socket. During assembly, the bending elastic foot is pressed on the first connecting piece.

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