A connector

Abstract

The application provides a PCB connector, which comprises a stabilizing piece, a first pin and a second pin. The stabilizing piece is provided with a mating plane, the first pin penetrates through the PCB to form a bottom soldering area, and the second pin elastically contacts and presses the PCB to form a top contact area. Through a unique spatial layering design, the soldering area and the contact area are arranged in a staggered manner in the vertical direction, synchronous operation of soldering fixation and elastic contact is realized, and this innovative double-area separation structure breaks through the process limitation of traditional connectors, simplifies the complex multi-step installation into one-time plug-in installation, not only saves the circuit board overturning step, but also avoids repeated positioning errors and thermal stress damage, greatly improves the assembly efficiency and ensures the connection reliability. The design is particularly suitable for high-density electronic assembly, and provides a new solution for the compact design of modern electronic equipment.

Description

Technical Field

[0001] This application relates to the field of PCBs, and more particularly to a connector. Background Technology

[0002] In the field of electronic equipment assembly, PCB connectors are core components for achieving electrical interconnection between circuit boards. In traditional designs, power interfaces and signal interfaces, such as fisheye spring terminals, are usually separate structures. Power pins need to be soldered through through holes and fixed to the bottom layer of the PCB, while signal terminals are fixed to the board surface through surface mounting or elastic contacts. This separate layout results in connectors occupying a large space and cumbersome assembly processes, requiring the soldering / installation of two sets of interfaces separately. In high-density PCB designs with multiple interfaces, it is prone to routing conflicts. Especially for double-layer PCBs, the separate interfaces need to be processed in stages, significantly reducing production efficiency. Utility Model Content

[0003] The purpose of this application is to provide an integrated connector that allows for quick installation.

[0004] According to one aspect of this application, a connector is provided for insertion into a PCB board. The connector includes a retaining member, a first pin, and a second pin. The retaining member is used to secure the connector and forms a mating plane. The connector includes a first pin and a second pin integrated into the mating plane. One end of the first pin is fixed to the mating plane, and the other end passes through and is soldered to the PCB board to establish an electrical connection path with the PCB board. One end of the second pin is fixed to the mating plane, and the other end presses against the PCB board to form an electrical signal connection. Projected onto the PCB board along the extension direction of the connector, the first pin penetrates the PCB board and forms a soldering area on its lower end face, while the second pin presses against the upper end face of the PCB and forms a corresponding contact area.

[0005] In one specific embodiment, the soldering area is projected onto the PCB board along the extension direction of the plug-in, and is at least partially disposed around the contact area.

[0006] In one specific embodiment, the first pin and the second pin extend sequentially into the PCB board in the extension direction of the plug to form a segmented connection.

[0007] In one specific embodiment, along the extension direction of the plug-in, the retaining member has a first protrusion and a second protrusion protruding toward the PCB board. The first protrusion corresponds to the soldering area, and the first pin extends through the first protrusion and is soldered to the soldering area. The second protrusion corresponds to the contact area, and the second pin extends through the second protrusion and elastically contacts the contact area. The first and second protrusions have different heights along the extension direction of the plug-in, such that the soldering end of the first pin and the contacting end of the second pin are staggered.

[0008] In one specific embodiment, viewed along the extension direction parallel to the plug, the first protrusion has at least two through first fixing slots, the second protrusion has at least eight through second fixing slots, the first pin is fixed in the first fixing slot, and the second pin is fixed in the second fixing slot.

[0009] In one specific embodiment, viewed along the extension direction parallel to the plug, a plurality of second protrusions are spaced apart along the length direction of the stabilizer to form a strip-shaped arrangement structure.

[0010] In one specific embodiment, along the extension direction of the plug, the stabilizing member has a wiring groove, and the bottom surface of the wiring groove has a rib extending along its extension direction. The rib forms the second protrusion. The second pin includes a wiring end located in the wiring groove and a pressing end for elastically contacting the contact area. The second pin extends through the rib, such that its pressing end is located at the distal end of the rib.

[0011] In one specific embodiment, a fitting groove is provided around each of the second protrusions, and a limiting band is formed between the inner wall of the fitting groove and the outer peripheral surface of the second protrusion. The contact area is configured to be accommodated in the corresponding limiting band when the connector is inserted into the PCB board, and to form a limiting engagement with the second protrusion.

[0012] In one specific embodiment, two symmetrically arranged positioning posts are provided at both ends of the strip-shaped arrangement structure along its length, corresponding to the contact area.

[0013] In one specific embodiment, along the extension direction of the plug, the stabilizing member has a power receiving groove, and the bottom surface of the power receiving groove has a protruding ridge extending along its extension direction. The protruding ridge constitutes a second protrusion for fixing the first pin. The first pin includes a power receiving end located in the power receiving groove and a welding end for welding to the welding area. The first pin extends through the protruding ridge, such that its welding end is located at the far end of the protruding ridge.

[0014] Therefore, the aforementioned connector, through the core design of "dual-zone spatial separation in the projection direction," that is, the bottom layer of the soldering area and the top layer of the contact area, breaks through the process mutual exclusion bottleneck caused by spatial overlap in existing integrated connectors, realizes the true synchronous execution of soldering and contact pressing operations, reduces the installation steps to single insertion synchronous processing, and eliminates the need for PCB flipping, avoiding secondary positioning errors and component thermal damage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 An axial view of a connector;

[0017] Figure 2 for Figure 1 A bottom view;

[0018] Figure 3 for Figure 2 Enlarged view of part A;

[0019] Figure 4 A front view of a connector;

[0020] Figure 5 for Figure 4 The first sectional view;

[0021] Figure 6 for Figure 4 The second sectional view;

[0022] Figure 7 This is a first-state decomposition diagram of a connector.

[0023] Figure 8 This is a second-state decomposition diagram of a connector;

[0024] Figure 9 for Figure 8 Enlarged view of part B;

[0025] Figure 10 This is a top view of the PCB board;

[0026] Figure 11 This is a bottom view of the PCB board.

[0027] Explanation of icon numbers:

[0028] 10. Stabilizing component; 11. Butt joint plane; 20. First pin; 21. Soldering area; 22. Electrical terminal; 23. Soldering end; 30. Second pin; 31. Contact area; 32. Wiring terminal; 33. Pressing end; 40. First protrusion; 41. First fixing groove; 50. Second protrusion; 51. Second fixing groove; 52. Strip arrangement structure; 60. Wiring groove; 61. Raised rib; 70. Fitting groove; 71. Limiting band; 80. Positioning post; 90. Electrical groove; 91. Raised ridge; 100. A connector. Detailed Implementation

[0029] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] Please refer to Figure 1 - Figure 11This application provides a connector 100 for insertion into a PCB board. The connector includes a retaining member 10, a first pin 20, and a second pin 30. The retaining member 10 is used to secure the connector and forms a mating plane 11. The connector includes a first pin 20 and a second pin 30 integrated into the mating plane 11. One end of the first pin 20 is fixed to the mating plane 11, and the other end passes through and is soldered to the PCB board to establish an electrical connection with the PCB board. One end of the second pin 30 is fixed to the mating plane 11, and the other end presses against the PCB board to form an electrical signal connection. Projected onto the PCB board along the extension direction of the connector, the first pin 20 penetrates the PCB board and forms a soldering area 21 on its lower end face, while the second pin 30 presses against the upper end face of the PCB and forms a corresponding contact area 31.

[0033] Furthermore, the power pin (first pin 20) acts as a rigid anchor, penetrating the PCB to form the outer ring soldering area 21 frame, providing a mechanical positioning foundation and a high-current-carrying path. The fisheye signal pin (second pin 30) achieves self-calibrating signal connection by radially elastically deforming and pressing against the PCB surface contact area 31. In terms of spatial layout, the soldering area 21 at least partially surrounds the contact area 31, forming a "rigid outside and flexible inside" mechanical topology. The power pin's Z-axis length advantage (> the fisheye pin's free height) enables installation timing control. During insertion, the power pin preferentially inserts into the through-hole to establish a horizontal positioning coordinate system, followed by the fisheye pin compressing the contact in the core area, eliminating the risk of interference from synchronous contact. In terms of positional relationship, the annular soldering area 21 forms a mechanical guiding surface, allowing for initial positional deviations and adaptive correction. The spherical contact head of the fisheye pin compensates for PCB coplanarity errors through deformation. The structure essentially uses a power pin frame to provide a leveling-free positioning reference, and the elastic deformation of the fisheye pins to replace manual adjustment. A single plug-in simultaneously completes power connection and signal conduction, simplifying the traditional multi-process installation into a physically self-executed process, enabling rapid assembly on high-speed production lines.

[0034] In one specific embodiment, the soldering area 21 is projected onto the PCB board along the extension direction of the plug-in, and is at least partially disposed around the contact area 31.

[0035] Furthermore, the layout of the welding area 21, which at least partially surrounds the contact area 31, constitutes a mechanically optimized topology. In terms of connection, the outer welding points form a continuous support frame, and the central contact area 31 is mechanically isolated from the influence of shear forces. Its advantage is that the ring-shaped distribution of the welding area 21 transfers the external load to the high-strength area at the edge of the PCB board, while the contact area 31 is located in a low-stress core area. Its beneficial effect is to eliminate the fretting wear of the signal contacts caused by the bending of the board. Its nested structure is equivalent to a mechanical Faraday cage, improving the contact reliability under vibration scenarios.

[0036] In one specific embodiment, the first pin 20 and the second pin 30 extend sequentially into the PCB board in the extension direction of the plug to form a segmented connection.

[0037] Furthermore, the first and second pins 30 extend into the PCB in segments to form an axially misaligned connection; the fixed depth of the first pin 20 establishes a reference coordinate system, and the elastic contact of the second pin 30 occurs afterward. In terms of positional relationship, there is an axial height difference between the two, which forms a separation of force timing; its beneficial effect is to avoid the overturning torque caused by the superposition of synchronous insertion torque through mechanical timing control, and the Z-axis buffer space formed by the position difference allows the signal contacts to freely compensate during thermal deformation of the PCB board, thus eliminating connector warping failure from the root.

[0038] In one specific embodiment, along the extension direction of the plug-in, the retaining member 10 has a first protrusion 40 and a second protrusion 50 protruding toward the PCB board. The first protrusion 40 corresponds to the soldering area 21, and the first pin 20 extends through the first protrusion 40 and is soldered to the soldering area 21. The second protrusion 50 corresponds to the contact area 31, and the second pin 30 extends through the second protrusion 50 and elastically contacts the contact area 31. The first protrusion 40 and the second protrusion 50 have different heights along the extension direction of the plug-in, such that the soldering end 23 of the first pin 20 and the contacting end 33 of the second pin 30 are staggered.

[0039] Furthermore, the first protrusion 40 and the second protrusion 50 at different heights form a spatial positioning ladder. In terms of connection, the first protrusion 40 constrains the verticality of the power pin and conducts welding thermal stress, while the second protrusion 50 restricts the stroke of the signal pin and provides an elastic recovery fulcrum. The height difference of the protrusions forms a Z-direction airflow channel to accelerate thermal convection and establishes a graded guidance path for the pins. Its beneficial effect is the integration of mechanical positioning and thermal management functions. The height difference design makes the high-current pin and the signal pin form a physical isolation zone, blocking the heat conduction path.

[0040] In one specific embodiment, viewed along the extension direction parallel to the plug, the first protrusion 40 has at least two through first fixing slots 41, the second protrusion 50 has at least eight through second fixing slots 51, the first pin 20 is fixed in the first fixing slot 41, and the second pin 30 is fixed in the second fixing slot 51.

[0041] Furthermore, the differentiated design of the first fixed slot 41 and the second fixed slot 51 achieves electromechanical decoupling; in terms of connection, the wide slot sidewall and the power pin are interference-fitted to form a bending rigid body, and the narrow slot gap allows the signal pin to deflect elastically. The positional relationship is as follows: the power slot group is centrally located to reduce the loop impedance, and the signal slot array is distributed at the edge to avoid electromagnetic interference. Its beneficial effect is to optimize the current path and signal integrity through physical partitioning, and the difference in slot width matches the mechanical requirements of the pin. In essence, it is an impedance matching design of the mechanical structure.

[0042] In one specific embodiment, viewed along the extension direction parallel to the plug, a plurality of second protrusions 50 are spaced apart along the length direction of the stabilizer 10 to form a strip arrangement structure 52.

[0043] Furthermore, the strip-shaped arrangement of the second group of 50 protrusions forms a wave-shaped contact surface; in terms of connection, the gap between adjacent protrusions forms a thermal expansion margin area, the strip protrusions themselves act as heat dissipation fins to expand the surface area, and the spaced layout allows local thermal deformation to be discretized and absorbed, with the long axis of the protrusions orthogonal to the main thermal expansion direction of the PCB; its beneficial effect is the synergistic design of mechanical fixation and thermal stress release, the strip topology disperses the concentrated thermal load into a linear distribution, avoiding the stress concentration effect of traditional block protrusions.

[0044] In one specific embodiment, along the extension direction of the plug, the stabilizing member 10 has a wiring groove 60, the bottom surface of the wiring groove 60 has a protruding rib 61 extending along its extension direction, the protruding rib 61 constitutes the second protrusion 50, the second pin 30 includes a wiring end 32 located in the wiring groove 60 and a pressing end 33 for elastically contacting the contact area 31, the second pin 30 extends through the protruding rib 61 such that its pressing end 33 is located at the distal end of the protruding rib 61.

[0045] Furthermore, the bottom rib 61 of the wiring groove 60 serves as the second protrusion 50 to precisely constrain the deformation path of the second pin 30; its connection relationship is as follows: the side wall of the rib 61 guides the pin to compress unidirectionally along the Z-axis, and its thickness determines the elastic stroke limit. In terms of position, the far end of the rib 61 forms a cantilever beam fulcrum to control the contact pressure gradient; the beneficial effect is to transform random elastic deformation into directional motion through geometric constraints, eliminating contact resistance fluctuations caused by lateral swaying, which is essentially a mechanical rectification structure.

[0046] In one specific embodiment, a fitting groove 70 is provided around each of the second protrusions 50. A limiting band 71 is formed between the inner wall of the fitting groove 70 and the outer peripheral surface of the second protrusion 50. The contact area 31 is configured to be accommodated in the corresponding limiting band 71 when the connector is inserted into the PCB board, and to form a limiting engagement with the second protrusion 50.

[0047] Furthermore, the limiting band 71 between the fitting groove 70 and the second protrusion 50 forms a millimeter-level mechanical hoop; in terms of connection, the inner wall of the limiting band 71 is laterally interference-fitted with the PCB contact area 31, and the top surface of the second protrusion 50 provides vertical limiting, and the positional relationship is a three-dimensional cage-like constraint; the beneficial effect is to realize dynamic locking under vibration environment by utilizing the elastic deformation of the material, and its micron-level gap design allows thermal expansion but suppresses mechanical vibration displacement, which is the equivalent application of Gibbs free energy in mechanical systems.

[0048] In one specific embodiment, the two ends of the strip arrangement structure 52 along its length direction are provided with two symmetrically arranged positioning posts 80 corresponding to the contact area 31.

[0049] Furthermore, the symmetrical positioning posts 80 at both ends of the strip structure constitute a foolproof coordinate system; in terms of connection, the diameter of the positioning post 80 and the PCB positioning hole form a unique matching pair, and their symmetrical layout establishes the installation direction discrimination benchmark. The positional relationship is derived as follows: the post-hole fit error is less than the contact position tolerance, ensuring that physical interference occurs first when misinserted; the beneficial effect is to transform the electrical connection correctness into a mechanical compatibility issue, and eliminate the possibility of reverse insertion through topological principles.

[0050] In one specific embodiment, along the extension direction of the plug, the stabilizing member 10 has a power receiving groove 90, and the bottom surface of the power receiving groove 90 has a protruding ridge 91 extending along its groove extension direction. The protruding ridge 91 constitutes a second protrusion 50 for fixing the first pin 20. The first pin 20 includes a power receiving end 22 located in the power receiving groove 90 and a welding end 23 for welding to the welding area 21. The first pin 20 extends through the protruding ridge 91, such that its welding end 23 is located at the distal end of the protruding ridge 91.

[0051] Furthermore, the protrusion 91 of the power connection slot 90 serves as the first protrusion 40 to achieve combined thermal and electrical management; the connection relationship is as follows: the protrusion 91 clusters the power pins into a thermal coupler, and its three-dimensional structure expands the heat dissipation surface area. In terms of position, the height of the protrusion 91 determines the development space of the thermal convection boundary layer; the beneficial effect is to improve the thermal radiation efficiency through geometric fusion, and the vertical air duct formed by the sidewall of the protrusion 91 induces the chimney effect heat dissipation, which is essentially a mechanical realization of Fourier's law of heat conduction.

[0052] Therefore, the aforementioned connector 100, through the core design of "projection direction dual-zone spatial separation", namely the bottom layer of the soldering area 21 and the top layer of the contact area 31, breaks through the process mutual exclusion bottleneck caused by spatial overlap of existing integrated connectors, realizes the true synchronous execution of soldering and contact operation, reduces the installation steps to single insertion synchronous processing, and eliminates the need for PCB flipping, avoiding secondary positioning errors and component thermal damage.

[0053] The embodiments described above are merely examples of several implementations of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. A connector for insertion into a PCB board, characterized in that, The connector includes: Stabilizer, used to secure inserts and form a mating plane; The plug-in includes components integrated into the docking plane: The first pin has one end fixed to the mating plane and the other end passing through and soldered to the PCB board to realize an electrical connection path with the PCB board. The second pin has one end fixed to the mating plane and the other end pressed against the PCB board to form an electrical signal connection. Projecting along the extension direction of the plug onto the PCB board, the first pin penetrates the PCB board and forms a soldering area corresponding to its lower end face, and the second pin touches the upper end face of the PCB and forms a corresponding contact area.

2. The connector according to claim 1, characterized in that, Projected onto the PCB board along the extension direction of the plug-in, the soldering area is at least partially arranged around the contact area.

3. A connector according to claim 1, characterized in that, in, In the extension direction of the plug, the first pin and the second pin extend into the PCB board in sequence to form a segmented connection.

4. A connector according to claim 3, characterized in that, Along the extension direction of the plug, the stabilizing member has a first protrusion and a second protrusion protruding toward the PCB board; Wherein, the first protrusion corresponds to the welding area, and the first pin extends through the first protrusion and is welded to the welding area; The second protrusion corresponds to the contact area, and the second pin extends through the second protrusion and elastically contacts the contact area; Furthermore, the first protrusion and the second protrusion have different heights in the extension direction of the plug, so that the soldering end of the first pin and the contact end of the second pin are staggered.

5. A connector according to claim 4, characterized in that, Viewed along the extension direction parallel to the plug, the first protrusion has at least two through first fixing slots, the second protrusion has at least eight through second fixing slots, the first pin is fixed in the first fixing slot, and the second pin is fixed in the second fixing slot.

6. A connector according to claim 5, characterized in that, Viewed along the extension direction parallel to the plug, a plurality of second protrusions are spaced apart along the length direction of the stabilizer to form a strip-shaped arrangement structure.

7. A connector according to claim 6, characterized in that, Along the extension direction of the plug, the stabilizing member has a wiring groove, and the bottom surface of the wiring groove has a rib extending along its extension direction. The rib forms the second protrusion. The second pin includes a wiring end located in the wiring groove and a pressing end for elastically contacting the contact area. The second pin extends through the rib, such that its pressing end is located at the distal end of the rib.

8. A connector according to claim 6, characterized in that, A fitting groove is provided around each of the second protrusions. A limiting band is formed between the inner wall of the fitting groove and the outer peripheral surface of the second protrusion. The contact area is configured to be accommodated in the corresponding limiting band when the connector is inserted into the PCB board, and to form a limiting engagement with the second protrusion.

9. A connector according to claim 6, characterized in that, The strip-shaped arrangement structure has two symmetrically arranged positioning posts at both ends of the contact area along its length.

10. A connector according to claim 5, characterized in that, Along the extension direction of the plug, the stabilizing member has a power receiving groove, and the bottom surface of the power receiving groove has a protruding ridge extending along its extension direction. The protruding ridge forms a second protrusion for fixing the first pin. The first pin includes a power receiving end located in the power receiving groove and a welding end for welding to the welding area. The first pin extends through the protruding ridge, such that its welding end is located at the far end of the protruding ridge.

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