An electrical connector

Abstract

The utility model discloses an electric connector relates to electric connector technical field. Including terminal group, insulating base body, the terminal group is in the insulating base body molding, and the contact part of terminal group is exposed to the surface of insulating base body respectively, and the welding part of terminal group is respectively from the side of insulating base body stretches out, still be provided with the mid -partition between the terminal group, and the one end of mid -partition forms at least one protruding, and the protruding is flush with one end of insulating base body. The scheme in the working process, when external plug -in component and terminal contact part engage and exert the insertion force, the force is passed through the terminal and is delivered to the insulating base body, and the existence of mid -partition changes the stress transmission path, and the protruding end and the insulating base body end face form rigid boundary together, thereby will partial concentrated load be converted into the dispersion transmission in the base body interior, avoid the shift of terminal in the root, make the connector keep higher mechanical stability in the plug -in cycle and reduce the terminal fatigue damage risk.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, specifically to an electrical connector. Background Technology

[0002] To achieve high-density terminal arrangement, existing Type-C female connectors typically embed multiple rows of terminals directly within the insulating core. When the external plug is repeatedly inserted or removed, the insertion force is transmitted to the core through the terminals, easily causing localized stress concentration at the terminal root area. Because Type-C female connectors are designed for a high number of insertions and removals (up to 10,000 or more), long-term cyclic action can lead to loosening or fatigue cracks in the terminals, resulting in decreased overall mechanical stability of the female connector and affecting connection reliability.

[0003] Secondly, the numerous and closely spaced terminals of the Type-C female connector, with signal and power terminals arranged side-by-side, easily lead to overlapping electric field distribution areas between adjacent terminals. Due to the lack of an effective isolation structure, existing female connectors frequently experience signal crosstalk during high-speed signal transmission, and impedance consistency is difficult to maintain. This not only reduces signal integrity but also affects the stable transmission performance of high-speed protocols (such as USB4 and Thunderbolt). Utility Model Content

[0004] The purpose of this application is to provide a technical solution to address the problems mentioned in the background section.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] An electrical connector includes a terminal group and an insulating substrate, wherein the terminal group is molded into the insulating substrate, and the contact portions of the terminal group are exposed on the surface of the insulating substrate, and the solder portions of the terminal group extend from the side of the insulating substrate.

[0007] A partition plate is also provided between the terminal groups, and at least one protrusion is formed at one end of the partition plate, which is flush with one end of the insulating substrate.

[0008] Preferably, it also includes a housing, and the insulating substrate is mounted inside the housing.

[0009] Preferably, one end of the partition plate has two protrusions, which are spaced apart and are flush with one end of the insulating substrate.

[0010] Preferably, the terminal group consists of two rows of terminals, upper and lower.

[0011] Preferably, the number of terminals in the upper terminal group is 12 pins.

[0012] Preferably, the number of terminals in the lower terminal group is 12 pins.

[0013] Preferably, at least two positioning posts are formed at the other end of the insulating substrate.

[0014] Preferably, the side portion of the other end of the partition plate extends outward and protrudes into contact with the outer shell.

[0015] Preferably, at least one segment of a terminal on the side of the terminal group also extends outward and protrudes, and contacts the outwardly extending protruding portion of the partition plate.

[0016] In summary, the technical effects and advantages of this utility model are as follows:

[0017] During operation, when the external connector engages with the terminal contact and an insertion force is applied, the force is transmitted to the insulating substrate through the terminal. The presence of the partition plate changes the stress transmission path. Its protruding end and the end face of the insulating substrate together form a rigid boundary, thereby transforming the local concentrated load into a dispersed transmission within the substrate. This prevents the terminal from shifting at the root, maintains high mechanical stability of the connector during insertion and removal cycles, and reduces the risk of terminal fatigue damage.

[0018] Meanwhile, the partition plate, as a solid dielectric, restricts the electric field diffusion area between adjacent terminals, separating the signal path into independent dielectric channels, thereby achieving crosstalk suppression and impedance consistency control in signal transmission. Attached Figure Description

[0019] 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 based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of the present utility model.

[0021] Figure 2 This is a first-view perspective perspective view of the internal structure of this utility model.

[0022] Figure 3 This is a second-view perspective perspective view of the internal structure of this utility model.

[0023] Figure 4 This is a perspective view of the terminal assembly of this utility model.

[0024] Figure 5 This is a perspective view of the partition plate of this utility model.

[0025] In the figure: terminal group 1, contact part 11, welding part 12, insulating substrate 2, positioning post 21, middle partition 3, protrusion 31, outer shell 4. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 An electrical connector includes a terminal group 1 and an insulating substrate 2. The terminal group 1 is molded within the insulating substrate 2, and the contact portions 11 of the terminal group 1 are exposed on the surface of the insulating substrate 2. The solder portions 12 of the terminal group 1 extend from the side of the insulating substrate 2. A partition 3 is also provided between the terminal groups 1. At least one protrusion 31 is formed at one end of the partition 3, and the protrusion 31 is flush with one end of the insulating substrate 2.

[0028] Working principle: In this design, the terminal group 1 is molded and fixed within the insulating substrate 2. The contact portion 11 is exposed along the surface of the substrate to form an insertion interface. The soldering portion 12 is led out from the side of the substrate and positioned in the soldering area. During molding, the insulating substrate 2 between the terminals is provided with a spacer 3. The spacer 3 geometrically penetrates the gap between the terminal group 1 and has a protrusion 31 at one end, which is flush with the end face of the insulating substrate 2. During operation, when the external connector engages with the terminal contact portion 11 and an insertion force is applied, the force is transmitted to the insulating substrate through the terminal. 2. The presence of the partition 3 changes the stress transmission path. Its protruding end 31 and the end face of the insulating substrate 2 together form a rigid boundary, thereby transforming the local concentrated load into a dispersed transmission within the substrate, preventing the terminal from shifting at the root, maintaining high mechanical stability of the connector during insertion and removal cycles and reducing the risk of terminal fatigue damage. At the same time, as a solid dielectric, the partition 3 restricts the electric field diffusion area between adjacent terminals, separating the signal path within an independent dielectric channel, thereby achieving crosstalk suppression and impedance consistency control in signal transmission.

[0029] Preferably, the device further includes a housing 4, with the insulating substrate 2 installed inside the housing 4. The housing 4, acting as an integral frame, covers the outside of the insulating substrate 2, providing a second layer of mechanical support. This ensures that the external forces generated during insertion and removal are not only borne by the substrate itself, but also that the tight fit between the housing 4 and the substrate forms an integrated load-bearing structure, thereby reducing the risk of localized deformation of the substrate. Simultaneously, the housing 4 acts as a barrier to the exposed surface of the insulating substrate 2, preventing accidental contact, scratches, or direct application of external forces to the surface of the insulating substrate 2 in DIY assembly or maintenance environments, reducing the possibility of loose terminals, substrate damage, or degraded electrical performance due to improper operation.

[0030] Preferably, one end of the partition 3 has two protrusions 31, which are spaced apart and flush with one end of the insulating substrate 2. Geometrically, the two protrusions 31 are equivalent to forming double limiting points at the end of the partition 3. When an insertion force or external force acts along the terminal direction, the load can be simultaneously transmitted to the end face of the insulating substrate 2 through the two protrusions 31, making the force distribution at the end of the partition 3 more balanced. Because the two protrusions 31 are spaced apart, they can provide multiple support paths while maintaining the overall rigid boundary, thereby reducing local stress concentration caused by single-point pressure. Mechanically, this enhances the resistance to deformation during insertion and extraction cycles, and electrically, it maintains the consistency of the isolation channel, preventing the partition 3 from affecting the electric field isolation effect of adjacent terminals due to local displacement.

[0031] Preferably, the terminal group 1 consists of two rows of terminal groups 1, one above the other. By arranging the terminals in two rows, the number of terminals can be increased within the limited lateral width of the connector, enabling partitioned arrangement of multiple channels such as signal and power. The three-dimensional layered structure of the two rows ensures that adjacent terminals are not only separated horizontally by the partition 3, but also dielectrically isolated vertically by the interlayer material of the insulating substrate 2, thus forming a more complete three-dimensional insulating barrier. This layout ensures accurate alignment of the contact portions 11 of each row of terminals with the corresponding positions of the external plug during insertion, and forms a layered lead-out arrangement at the soldering end, facilitating stable connection with multiple rows of solder joints on the PCB.

[0032] Preferably, the upper terminal group 1 has 12 pins. The upper terminal group 1 is limited to 12 pins, ensuring a one-to-one correspondence with the standard mating terminals of the external Type-C plug. During insertion, this guarantees accurate engagement between the contact portions 11 and the metal contacts at the plug end, thereby achieving precise matching of data lines, power lines, and control signal lines. The 12-pin configuration ensures a fixed corresponding position for each functional channel, avoiding misalignment or poor contact caused by inconsistent terminal numbers. Simultaneously, at the soldering end, this configuration ensures that the solder pads of the upper terminal group match the pre-set solder pads on the PCB, forming a uniformly distributed array of solder points, which facilitates balanced stress transmission during soldering.

[0033] Preferably, the lower terminal group 1 has 12 pins. The lower terminal group 1 is also configured with 12 pins, forming a symmetrical 24-pin structure with the upper terminal group 1, ensuring the total number of terminals is completely consistent with the Type-C female connector standard. During insertion, the upper and lower terminals can correspond to the positive and negative contacts of the external Type-C plug, achieving a symmetrical connection principle that allows for reversible insertion. The 12-pin configuration of the lower terminal group not only ensures a complete match in the number and position of functional channels but also mechanically creates a mirror image distribution with the upper terminal group, allowing for balanced transmission of insertion force between the two rows of terminals and reducing the risk of excessive force on a single row of terminals. At the soldering end, the lower and upper terminals are led out parallel to each other, forming a regular double-row solder joint array on the PCB, facilitating automated soldering and uniform stress transmission.

[0034] Preferably, at least two positioning posts 21 are formed at the other end of the insulating substrate 2. The positioning posts 21 are geometrically integral with the insulating substrate 2 and are inserted into the PCB positioning holes during installation, forming mechanical limits in the vertical and horizontal directions. The arrangement of at least two positioning posts 21 creates a stable positioning reference in the plane, preventing the insulating substrate 2 from rotating or shifting during assembly and ensuring the alignment accuracy between the terminal group 1 and the PCB pads. The positioning posts 21 continue to provide structural constraints after soldering and can share some of the external insertion and extraction forces during operation, reducing the risk of the solder joints bearing stress alone.

[0035] Preferably, the side portion of the other end of the partition 3 extends outward and protrudes, contacting the outer shell 4. This protruding structure of the partition 3 forms physical contact with the outer shell 4, geometrically establishing a fixed connection path between the insulating medium and the metal shielding layer. When high-frequency signals are transmitted between adjacent terminals, the partition can define the electric field boundary, and the contact with the outer shell 4 further forms a reference shielding surface, stabilizing the electric field distribution of the signal transmission channel. This structure effectively constitutes a local microstrip / stripline isolation condition, reducing the coupling effect of high-frequency electric fields between terminals, thereby reducing crosstalk. Simultaneously, the contact between the partition 3 and the outer shell 4 also limits the slight displacement of the partition itself, ensuring the stability of the dielectric position and preventing fluctuations in high-frequency impedance due to insertion / removal or temperature changes.

[0036] Preferably, at least one segment of a terminal on the side of the terminal group 1 also extends outward and protrudes, contacting the outwardly protruding portion of the partition 3. When the GND terminal in the terminal group 1 is designed to extend laterally and form direct contact with the protruding portion of the partition 3, the electrical connector establishes a continuous conductive coupling path in its structure. The GND terminal not only serves as an electrical grounding terminal but also forms a stable shielding reference surface through its contact with the protruding portion of the partition 3, ensuring a fixed return path for adjacent signal terminals during high-frequency transmission and reducing the diffusion range of return current in space. As a result, the loop area of ​​the signal circuit is compressed, the transmission impedance is balanced and controlled, and crosstalk of high-frequency signals is further reduced. At the same time, the protruding portion of the GND terminal and the partition form a local mechanical support point, which also improves the structural stability and avoids impedance fluctuations caused by dielectric displacement during signal transmission.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electrical connector, comprising a terminal group and an insulating substrate, wherein the terminal group is molded within the insulating substrate, and the contact portions of the terminal group are respectively exposed on the surface of the insulating substrate, and the solder portions of the terminal group extend from the side of the insulating substrate; Its features are: A partition plate is also provided between the terminal groups, and at least one protrusion is formed at one end of the partition plate, which is flush with one end of the insulating substrate.

2. The electrical connector according to claim 1, characterized in that: It also includes a housing, and the insulating substrate is mounted inside the housing.

3. The electrical connector according to claim 1, characterized in that: Two protrusions are formed at one end of the partition plate, and the two protrusions are spaced apart and are flush with one end of the insulating substrate.

4. The electrical connector according to claim 1, characterized in that: The terminal group consists of two rows of terminals, one above the other.

5. The electrical connector according to claim 4, characterized in that: The number of terminals in the upper terminal group is 12 pins.

6. The electrical connector according to claim 4, characterized in that: The number of terminals in the lower terminal group is 12 pins.

7. The electrical connector according to claim 1, characterized in that: At least two positioning posts are also formed at the other end of the insulating substrate.

8. The electrical connector according to claim 2, characterized in that: The side portion of the other end of the partition plate extends outward and protrudes into contact with the outer shell.

9. The electrical connector according to claim 8, characterized in that: At least one of the terminals on the side of the terminal group also extends outward and protrudes, and contacts the outwardly protruding portion of the central partition.

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