A direct pressure ferrule with stable contact

Through the design of pin brackets and prototypical structures, welding problems and contact instability in the existing core structure are solved, stable connection and signal interference reduction are achieved, and the assembly stability and contact reliability of pins are improved.

CN111490372BActive Publication Date: 2025-08-26JIANGSU ENMAN ELECTRONICS IND CO LTD
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Patent Information

Application Number
CN202010499679.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-04-29
Filing Date
2020-06-04
Publication Date
2025-08-26
Estimated Expiration
2040-06-04

AI Technical Summary

Technical Problem

The existing core structure requires soldering technology, which leads to cumbersome process and is prone to missed welding and fake welding, and is unstable in contact, which makes it easy to have poor contact problems.

Method used

The pin bracket, bracket fastener and two rows of pin design are used to connect the PCB board through the fish eye hole without welding. It combines the prototypical structure to reduce signal interference, and enhance the support stability of the pin through the upper and lower dislocation limit slot and movable support frame.

Benefits of technology

It reduces production difficulty and cost, solves the problems of missing welding and fake welding, reduces signal interference, ensures normal installation of the pin, avoids poor contact, and enhances the assembly stability and elasticity of the pin.

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Abstract

The present invention discloses a direct-pressing plug with stable contact, comprising a pin bracket, a bracket fastener and two rows of pins. An insertion portion is provided at one end of the pin, and a fisheye hole for connecting to a PCB board is provided at the other end. A profiling structure for reducing signal interference is also provided at the end of the pin close to the fisheye hole. A plurality of pin slots for inserting the insertion portion are provided at one end of the pin bracket, and a limiting support is provided at the other end. A plurality of movable support frames for supporting the pins are provided at the end of the limiting support close to the pin slot. A plurality of limiting slots matching the profiling structure are provided at the upper end of the limiting support, and the limiting slots are staggered up and down. A pin pressure block for pressing the profiling structure into the corresponding limiting slot is provided on the bracket fastener. The direct-pressing plug of the present invention improves the stability of pin assembly and avoids the phenomenon of poor contact.
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Description

Technical Field

[0001] The present invention relates to the technical field of electrical connection devices, and in particular to a direct-pressure plug with stable contact. Background Art

[0002] The existing ferrule body features two rows of pin slots, one above and one below, each row containing four pin slots, each housing a pin. These existing ferrules require a soldering process, which is not only cumbersome but also prone to issues like leaky solder joints and false solder joints. Furthermore, the pin supports in existing structures are all integrated, making them susceptible to external influences, leading to unstable contact and potentially poor contact. Summary of the Invention

[0003] In order to overcome the above-mentioned shortcomings, the purpose of the present invention is to provide a direct-pressure ferrule with stable contact, which improves the stability of pin assembly and avoids the phenomenon of poor contact.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a direct-pressed plug with stable contact, including a pin bracket, a bracket fastener and two rows of pins. One end of the pin is provided with an insertion portion, and the other end is provided with a fisheye hole for connecting to a PCB board. The end of the pin close to the fisheye hole is also provided with a profiling structure for reducing signal interference. One end of the pin bracket is provided with a plurality of pin slots for inserting the insertion portion, and the other end is provided with a limiting support. The end of the limiting support close to the pin slot is provided with a plurality of movable support frames for supporting the pins, and the upper end of the limiting support is provided with a plurality of limiting slots matching the profiling structure, and the limiting slots are staggered up and down. The bracket fastener is provided with a pin pressure block for pressing the profiling structure into the corresponding limiting slot.

[0005] The beneficial effects of the present invention are as follows: the connection between the pins and the PCB board can be achieved without soldering through the setting of the fisheye holes, which reduces the production difficulty and cost and solves the poor contact caused by problems such as leaking soldering and false soldering; the signal interference generated by the two rows of pins during operation is reduced by the setting of the contoured structure; the limiting slots arranged in an upper and lower offset manner ensure that both rows of pins can be installed in place normally, ensuring that the functions of the pins are intact; the support for the pins is enhanced through the cooperation of the pin slots, the movable support frame and the limiting slots, making the assembly of the pins more stable and avoiding the phenomenon of poor contact.

[0006] Specifically, the movable support frame corresponds one-to-one with the pins and includes a support rod fixedly connected to the position-limiting support. One end of the support rod is integrally provided with an arc-shaped support portion that can abut against the lower end surface of the pins. The support provided by the movable support frame effectively reduces deformation of the pins under stress, thereby enhancing the pins' elasticity and performance. The movable support frame, which corresponds one-to-one with the pins, allows individual pins to press against the movable support frame. Even if a pin is pressed downward, this does not affect the contact between the other pins and the electrical plug connector, thereby preventing poor contact when the plug connector is inserted.

[0007] Specifically, two sides of the position-limiting support are provided with vertically arranged slots, each of which is provided with a fixed snap point for engaging the bracket fastener. The bracket fastener comprises a fastener body, with two symmetrically arranged slides that mate with the slots; a block is provided at the bottom of each slide that snaps into the fixed snap point. The slots and slides cooperate to assemble the bracket fastener to the position-limiting support, and the fixed snap point and snap block secure the bracket fastener.

[0008] Furthermore, the block is provided with an inclined surface that serves as a guide.

[0009] Furthermore, the pin bracket is provided with a bracket stress relief edge on both sides, which solves the problem of the ferrule being easily damaged and the contact being unstable due to the ferrule being subjected to stress alone when the plug is inserted into the ferrule. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0011] Figure 2 Schematic diagram of the three-dimensional structure of the pin bracket according to an embodiment of the present invention;

[0012] Figure 3 A schematic diagram of the three-dimensional structure of the pin bracket according to another embodiment of the present invention;

[0013] Figure 4 is a schematic diagram of the three-dimensional structure of a bracket fastener according to an embodiment of the present invention;

[0014] Figure 5 This is a schematic diagram of the three-dimensional structure of the pin assembled on the pin bracket according to the embodiment of the present invention;

[0015] Figure 6 Schematic diagram of the positions of two rows of pins in an embodiment of the present invention.

[0016] In the picture:

[0017] 1-pin bracket; 11-pin slot; 12-limit support; 13-movable support frame; 131-support rod; 132-arc-shaped support part; 14-limit slot; 15-slide groove; 151-fixed buckle point; 16-bracket unloading edge; 2-bracket fastener; 21-pin pressure block; 22-fastener body; 23-slide bar; 24-block; 3-pin; 31-insertion part; 32-fisheye hole; 33-profile structure. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0019] Example

[0020] See attached Figure 1-6 As shown, a direct-pressed plug with stable contact according to the present invention comprises a pin bracket 1, a bracket fastener 2, and two rows of pins 3. One end of the pin 3 is provided with an insertion portion 31, and the other end is provided with a fisheye hole 32 for connecting to a PCB board. The end of the pin 3 near the fisheye hole 32 is also provided with a profiling structure 33 for reducing signal interference. One end of the pin bracket 1 is provided with a plurality of pin slots 11 for inserting the insertion portion 31, and the other end is provided with a limiting support 12. The end of the limiting support 12 near the pin slot 11 is provided with a plurality of movable support frames 13 for supporting the pin 3. The upper end of the limiting support 12 is provided with a plurality of limiting card slots 14 that match the profiling structure 33, and the plurality of limiting card slots 14 are staggered in an upper and lower manner. The bracket fastener 2 is provided with a pin pressing block 21 for pressing the profiling structure 33 into the corresponding limiting card slot 14.

[0021] The setting of the fisheye hole 32 allows the connection between the pin 3 and the PCB board to be achieved without soldering, which reduces the production difficulty and cost and solves the problem of poor contact caused by soldering leaks, false soldering and other problems; the setting of the contoured structure 33 reduces the signal interference between the two rows of pins 3 during operation; the upper and lower offset setting of the limit card slot 14 ensures that both rows of pins 3 can be installed in place normally, ensuring that the functions of the pins 3 are intact; the cooperation of the pin slot 11, the movable support frame 13 and the limit card slot 14 enhances the support for the pin 3, making the assembly of the pin 3 more stable and avoiding the phenomenon of poor contact.

[0022] In this embodiment, see the attached Figure 6 As shown, the two rows of pins are the first row of pins and the second row of pins, wherein the first row of pins includes pins 2, 4, 6, and 8; the second row of pins includes pins 1, 3, 5, and 7.

[0023] See attached Figure 2-3 As shown, there are 8 pin slots, and from left to right they are needle slot No. 1, needle slot No. 2, needle slot No. 3, needle slot No. 4, needle slot No. 5, needle slot No. 6, needle slot No. 7, and needle slot No. 8 corresponding to needle No. 1, needle No. 2, needle No. 3, needle No. 4, needle slot No. 5, needle slot No. 6, needle slot No. 7, and needle slot No. 8.

[0024] In this embodiment, see the attached Figure 2 As shown, there are six limit slots, which are slot 1, slot 2, slot 3, slot 4, slot 5, and slot 6 from left to right. Slots 1, 4, 5, and 6 have the same depth, while slots 2 and 3 have the same depth, and slot 1 is deeper than slot 2.

[0025] During assembly, the insertion portion of the No. 1 needle is inserted into the No. 1 needle slot, and its profiling structure is pressed into the No. 1 card slot; the insertion portion of the No. 2 needle is inserted into the No. 1 needle slot, and its profiling structure is pressed into the No. 1 needle slot, and the profiling structure of the No. 2 needle is located below the profiling structure of the No. 1 needle; the insertion portion of the No. 3 needle is inserted into the No. 3 needle slot, and its profiling structure is pressed into the No. 2 card slot; the insertion portion of the No. 4 needle is inserted into the No. 4 needle slot, and its profiling structure is pressed into the No. 4 card slot. The insertion part of the No. 5 needle is inserted into the No. 5 needle slot, and its profiling structure is pressed into the No. 3 card slot; the insertion part of the No. 6 needle is inserted into the No. 6 needle slot, and its profiling structure is pressed into the No. 5 card slot; the insertion part of the No. 7 needle is inserted into the No. 7 needle slot, and its profiling structure is pressed into the No. 6 card slot; the insertion part of the No. 8 needle is inserted into the No. 8 needle slot, and its profiling structure is pressed into the No. 6 card slot, and the profiling structure of the No. 8 needle is located below the profiling structure of the No. 7 needle.

[0026] In this embodiment, there are eight movable support frames 13, which correspond one-to-one to the pins 3. The movable support frame 13 includes a support rod 131 fixedly connected to the limit support 12. One end of the support rod 131 is integrally provided with an arc-shaped support portion 132 that can abut against the lower end surface of the pin 3. The support of the pin 3 by the movable support frame 13 effectively reduces the deformation of the pin 3 after being subjected to force, thereby enhancing the elasticity and performance of the pin 3; by the movable support frame 13 corresponding one-to-one to the pin 3, a single pin 3 is pressed against a single movable support frame 13, and even if one of the pins 3 is pressed down by force, it will not affect the contact between the other pins 3 and the plug of the electrical plug connector, thereby avoiding poor contact caused by the insertion of the plug connector.

[0027] In this embodiment, two sides of the position-limiting support 12 are provided with vertically arranged sliding grooves 15, and the sliding grooves 15 are provided with fixed buckle points 151 for engaging the bracket fastener 2. The bracket fastener 2 includes a fastener body 22, and two sides of the fastener body 22 are symmetrically provided with slide bars 23 that match the sliding grooves 15. The bottom of the slide bar 23 is provided with a clamping block 24 that is engaged with the fixed buckle points 151. The clamping block 24 is provided with an inclined surface that serves as a guide. The bracket fastener 2 is assembled to the position-limiting support 12 through the cooperation between the sliding grooves 15 and the sliding bars 23, and the bracket fastener 2 is fixed by the arrangement of the fixed buckle points 151 and the clamping block 24.

[0028] In this embodiment, the pin bracket 1 is further provided with a bracket stress relief edge 16 on both sides. The provision of the bracket stress relief edge 16 solves the problem of the ferrule being easily damaged and the contact being unstable due to the ferrule being subjected to stress alone when the plug is inserted into the ferrule.

[0029] The above embodiments are only for illustrating the technical concept and features of the present invention. Its purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. It cannot be used to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A direct-pressure ferrule with stable contact, comprising a pin bracket, a bracket fastener, and two rows of pins; characterized in that: One end of the pin is provided with an insertion portion, and the other end is provided with a fisheye hole for connecting to the PCB board, and the end of the pin close to the fisheye hole is also provided with a profiling structure for reducing signal interference; one end of the pin bracket is provided with a plurality of pin slots for inserting the insertion portion, and the other end is provided with a limiting support; the end of the limiting support close to the pin slot is provided with a plurality of movable support frames for supporting the pin, and the upper end of the limiting support is provided with a plurality of limiting card slots matching the profiling structure, and the plurality of limiting card slots are staggered in an upper and lower manner; the bracket fastener is provided with a pin pressing block for pressing the profiling structure into the corresponding limiting card slot; The two rows of pins are respectively the first row of pins and the second row of pins, wherein the first row of pins includes pins No. 2, No. 4, No. 6, and No. 8; the second row of pins includes pins No. 1, No. 3, No. 5, and No. 7; there are 6 limit slots, and from left to right they are slot No. 1, slot No. 2, slot No. 3, slot No. 4, slot No. 5, and slot No. 6; wherein slot No. 1, slot No. 4, slot No. 5, and slot No. 6 have the same depth, slot No. 2 and slot No. 3 have the same depth, and the depth of slot No. 1 is greater than that of slot No. 2; The No. 2, No. 4, No. 6, and No. 8 needles are arranged in a horizontal direction and on the same horizontal plane, and the No. 1, No. 3, No. 5, and No. 7 needles are arranged in a horizontal direction and on the same horizontal plane, and the No. 1, No. 3, No. 5, and No. 7 needles are located above the No. 2, No. 4, No. 6, and No. 8 needles; The profiling structures of needles No. 2, No. 3, No. 4, No. 5, No. 6, and No. 7 are all needle-shaped; the profiling structures of needles No. 1 and No. 8 are all convex; wherein, the convex profiling structure of needle No. 1 is opposite to the needle-shaped profiling structure of needle No. 3 in the transverse direction and is displaced in the longitudinal direction, the needle-shaped profiling structures of needle No. 3 and needle No. 5 are opposite to each other in the transverse direction and are displaced in the longitudinal direction, and the needle-shaped profiling structures of needle No. 5 and needle No. 7 are opposite to each other in the transverse direction; wherein, the needle-shaped profiling structures of needle No. 2 and needle No. 4 are opposite to each other in the transverse direction, the needle-shaped profiling structures of needle No. 4 and needle No. 6 are opposite to each other in the transverse direction and are displaced in the longitudinal direction, and the needle-shaped profiling structure of needle No. 6 is opposite to the convex profiling structure of needle No. 8 in the transverse direction and is displaced in the longitudinal direction; Among them, the convex profiling structure of needle No. 1 and the needle-like profiling structure of needle No. 2 are in the same direction in the transverse direction, the needle-like profiling structure of needle No. 4 and the needle-like profiling structure of needle No. 5 are in opposite directions in the transverse direction, and the needle-like profiling structure of needle No. 7 and the convex profiling structure of needle No. 8 are in the same direction in the transverse direction.

2. The direct pressure ferrule according to claim 1, characterized in that: The movable support frame corresponds to the pins one by one, and includes a support rod fixedly connected to the limit support; one end of the support rod is integrally provided with an arc-shaped support portion that can abut against the lower end surface of the pin.

3. The direct pressure ferrule according to claim 1, characterized in that: Both sides of the position-limiting support are provided with sliding grooves arranged in the vertical direction, and fixed buckle points for engaging the bracket fasteners are provided in the sliding grooves.

4. The direct pressure ferrule according to claim 3, characterized in that: The bracket fastener includes a fastener body, and slide bars matching the slide grooves are symmetrically provided on both sides of the fastener body; a clamping block that is buckled with the fixed buckle point is provided at the bottom of the slide bar.

5. The direct pressure ferrule according to claim 4, characterized in that: The clamping block is provided with an inclined surface which plays a guiding role.

6. The direct pressure ferrule according to any one of claims 1 to 5, characterized in that: Bracket force-relieving edges are also provided on both sides of the pin bracket.

Citation Information

Patent Citations

  • Universal insertion core

    CN209344385U

  • Direct pressure type insertion core with stable contact

    CN212033277U