An electrical connector

Abstract

The utility model discloses a kind of electric connectors, it is related to electric connector technical field.A kind of electric connector, including insulating base, conducting terminal, cable, the insulating base one end is formed with line hole, the other end is formed with insertion hole, the line hole is communicated with the insertion hole;The conducting terminal side has at least one stop retracting spring arm, the insulating base inside is formed with the stop retracting platform matched with the stop retracting spring arm, the conducting terminal is installed in the insulating base by the stop retracting spring arm buckling the stop retracting platform, while, a section of the conducting terminal is placed in the line hole, another section is placed in the insertion hole, the cable is connected with the conducting terminal section placed in the line hole.This scheme does not rely on additional locking parts, but through the mutual cooperation between conducting terminal and insulating base to realize stop retracting locking mechanism, so manufacturing cost is lower, and time consumption is shorter in assembly process, and production efficiency is higher.

Description

Technical Field

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

[0002] An electrical connector is an electronic component used to achieve a reliable connection between electrical circuits and electrical components. Its main function is to bridge gaps in a circuit or between isolated circuits, allowing current to flow and enabling the circuit to perform its intended function. An electrical connector consists of two parts: a fixed connector and a free-end connector. The connection and disconnection of the circuit are achieved through the mating and disassembly of the plug and socket. An electrical connector with publication number CN217562867U includes an insulating body and several conductive terminals. The insulating body has several terminal slots extending in a front-to-back direction, and the conductive terminals are housed in corresponding terminal slots. The insulating body includes a power transmission section and a signal transmission section located on one side of the power transmission section in the height direction. The conductive terminals include several power terminals arranged in the power transmission section and several signal terminals arranged in the signal transmission section. A retaining arm engages with the power terminal slot to prevent the signal terminals from retracting from the insulating body. However, if the retaining arm is damaged or deformed, the signal terminals may retract or come out of the insulating body. A power connector with publication number CN111262066B includes a first insulating shell, a locking assembly, a second insulating shell, multiple terminals, multiple wires, and multiple terminal fixing parts. It prevents backflow by inserting the terminal fixing parts into the cable exit side. However, this method occupies space at the cable exit point, requiring a smaller cable size, which makes the cable conductors prone to deformation, thus affecting signal transmission.

[0003] To address the aforementioned problems, a Chinese utility model patent titled "An Electrical Connector and Connector Assembly," with patent number "202420575326.6," was invented to solve these problems. However, testing revealed the following defects in this solution: It mainly relies on the cooperation between the locking component and the stop part of the terminal to achieve the function of preventing the terminal from moving back during operation. This solution requires the separate manufacture of a locking component to achieve the effect of preventing the terminal from moving back, so the manufacturing cost is high; and it also requires an extra assembly step in the assembly process, which makes the production time-consuming. 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: An electrical connector includes an insulating substrate, conductive terminals, and a cable. One end of the insulating substrate has a wire placement hole, and the other end has a insertion hole, wherein the wire placement hole communicates with the insertion hole. The conductive terminal has at least one anti-reverse spring arm, and an anti-reverse bracket matching the anti-reverse spring arm is formed inside the insulating substrate. The conductive terminal is installed in the insulating substrate by fastening the anti-reverse bracket with the anti-reverse spring arm. At the same time, one end of the conductive terminal is placed in the wire hole, and the other end is placed in the plug hole. The cable is connected to the part of the conductive terminal placed in the wire hole.

[0006] Preferably, the conductive terminal further has at least one stop spring arm, which is disposed on the other side of the anti-reverse spring arm.

[0007] Preferably, the insulating substrate further includes a stop plate that matches the stop spring arm.

[0008] Preferably, the forward stop arm is mirror-mounted on the other side of the backward stop arm.

[0009] Preferably, a locking element is also provided on the outside of the insulating substrate.

[0010] Preferably, the cable is riveted to a section of the conductive terminal placed inside the cable hole.

[0011] Preferably, the conductive terminal is a rivet terminal.

[0012] Preferably, the section of the conductive terminal placed inside the insertion hole also has at least one contact point.

[0013] Preferably, the insulating substrate further includes a separately configured signal connector.

[0014] Preferably, the insulating substrate further includes a detachable signal connector.

[0015] In summary, the technical effects and advantages of this utility model are as follows: This solution creates a continuous channel by setting a wire-holding hole at one end of the insulating substrate and connecting it to a plug-in hole at the other end. This allows conductive terminals to be installed longitudinally. One end of the conductive terminal is positioned within the wire-holding hole and reliably electrically connected to the cable, while the other end extends into the plug-in hole and makes electrical contact with the mating component. Based on this arrangement, a spring-loaded anti-reverse arm is provided on the side of the conductive terminal body. During insertion, the spring-loaded anti-reverse arm automatically and elastically expands outward and eventually engages with a pre-set anti-reverse bracket inside the insulating substrate. This allows the terminal to exert a reverse limiting effect against the bracket through its own elastic deformation after installation, thereby preventing the conductive terminal from retracting or loosening under external pulling or mating friction. This solution does not rely on additional locking parts but achieves the anti-reverse locking mechanism through the interaction between the conductive terminal and the insulating substrate. Therefore, it has lower manufacturing costs, shorter assembly time, and higher production efficiency. Secondly, the mechanism of this solution combines elasticity and self-adaptability with structural self-holding. It can withstand repeated insertion and removal stresses during long-term use and remain stable. At the same time, since the anti-retraction bracket and the anti-retraction spring arm are complementary in geometric position, they can provide axial and radial dual limiting support after the terminal is subjected to force, ensuring that the connection between the cable and the terminal does not loosen due to vibration, impact or repeated insertion and removal, thereby improving the electrical reliability and mechanical stability of the entire connector. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a perspective view of the present utility model.

[0018] Figure 2 This is a three-dimensional view of the internal structure of this utility model.

[0019] Figure 3 This is a cross-sectional view of the internal structure of this utility model.

[0020] Figure 4 This is a first-view perspective perspective view of the conductive terminal of this utility model.

[0021] Figure 5 This is a second-view perspective perspective view of the conductive terminal of this utility model.

[0022] Figure 6 This is a third-view perspective view of the conductive terminal of this utility model.

[0023] In the diagram: 1. Insulating substrate, 11. Wire hole, 12. Insertion hole, 13. Anti-reverse mounting plate, 14. Anti-advance mounting plate, 2. Conductive terminal, 21. Anti-reverse spring arm, 22. Anti-advance spring arm, 23. Contact, 3. Cable, 4. Locking fastener. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-6 An electrical connector includes an insulating substrate 1, conductive terminals 2, and a cable 3. One end of the insulating substrate 1 has a wire placement hole 11, and the other end has a insertion hole 12, wherein the wire placement hole 11 communicates with the insertion hole 12. The conductive terminal 2 has at least one anti-reverse spring arm 21 on its side. The insulating substrate 1 has an anti-reverse mounting platform 13 that matches the anti-reverse spring arm 21. The conductive terminal 2 is installed in the insulating substrate 1 by fastening the anti-reverse mounting platform 13 with the anti-reverse spring arm 21. At the same time, one end of the conductive terminal 2 is placed in the wire hole 11 and the other end is placed in the plug hole 12. The cable 3 is connected to one end of the conductive terminal 2 placed in the wire hole 11.

[0026] Working principle of this utility model: This solution provides a continuous channel by setting a wire placement hole 11 at one end of the insulating substrate 1 and connecting it to a plug hole 12 at the other end, allowing the conductive terminal 2 to be installed longitudinally. One end of the conductive terminal 2 is positioned in the wire placement hole 11 and reliably electrically connected to the cable 3, while the other end extends into the plug hole 12 and forms electrical contact with the mating parts. Based on this arrangement, a backstop arm 21 is provided on the side of the conductive terminal 2. During the insertion process, the backstop arm 21 automatically and elastically expands outward and finally snaps into the backstop bracket 13 preset inside the insulating substrate 1. This allows the terminal to generate a reverse limiting effect with the bracket through its own elastic deformation after installation, thereby preventing the conductive terminal 2 from retracting or loosening under external pulling or mating friction.

[0027] Preferably, the conductive terminal 2 further has at least one stop spring arm 22, which is disposed on the other side of the anti-reverse spring arm 21. The insulating substrate 1 also has a stop mounting platform 14 matching the stop spring arm 22, and the stop spring arm 22 is mirror-displayed on the other side of the anti-reverse spring arm 21. In a further optimization of this solution, the conductive terminal 2 not only has an anti-reverse spring arm 21, but also has at least one stop spring arm 22 on its opposite side, and the insulating substrate 1 has a corresponding stop mounting platform 14 matching the stop spring arm 22, thereby achieving bidirectional limiting engagement during the insertion of the terminal into the insulating substrate 1. Specifically, when the conductive terminal 2 is assembled along the insertion direction, the stop spring arm 22 first undergoes elastic deformation due to interference with the inner wall of the insulating substrate 1. As the insertion force continues to act, the stop spring arm 22 gradually passes over the stop bracket 14 and automatically engages with the limiting surface of the stop bracket 14 after the stress is released, thus forming an effective blockage in the longitudinal forward direction, preventing the terminal from continuing to advance excessively due to inertia or external force. At the same time, the anti-reverse spring arm 21 located on the other side cooperates with the anti-reverse bracket 13 in the insulating substrate 1 to provide reverse limiting in the opposite direction. Through this "mirror-like" symmetrical arrangement, the stop spring arm 22 and the anti-reverse spring arm 21 form a complementary relationship in terms of geometry and working mechanism, enabling the conductive terminal 2 to obtain axial limiting support in both forward and backward directions after insertion. Thus, in actual use, it can maintain stable positioning regardless of external insertion force, pull-out force, or vibration impact. Therefore, without the need to add extra parts, this structure achieves a bidirectional self-locking effect through the built-in snap-fit ​​design between the terminal body and the insulating substrate 1, which significantly improves the durability and reliability of the electrical connector in long-term plugging and unplugging cycles, ensuring that the connection end and the mating end of the cable 3 will not shift or fail under complex working conditions.

[0028] Preferably, a locking element 4 is also provided on the outside of the insulating substrate 1. By forming an independent locking structure on the outside of the insulating substrate 1, the entire electrical connector can provide additional holding force and limiting effect at the mechanical level when mating with external mating parts (such as sockets, connectors, or fixed brackets).

[0029] Preferably, the cable 3 is riveted to a section of the conductive terminal 2 placed within the wiring hole 11. After the cable 3 conductor is inserted into the wiring hole 11, a localized plastic deformation is applied between the terminal and the cable 3 conductor using a riveting process, causing a tight engagement between the terminal wall and the cable 3 conductor in the radial direction. This deformation process not only creates a strong mechanical fixation effect, but also significantly reduces the contact resistance at the contact interface due to the microscopic interlocking of materials during the riveting process, thereby ensuring stable electrical transmission performance.

[0030] Preferably, the conductive terminal 2 is a riveted terminal. Compared with ordinary terminals, the riveted terminal has a specially reserved riveting part in the design of the terminal body, so that the conductor of the cable 3 can be embedded into the riveting area of ​​the terminal. Then, the metal material of the terminal is subjected to controlled plastic deformation through the riveting process, thereby tightly covering and fixing the conductor of the cable 3 inside the terminal.

[0031] Preferably, the section of the conductive terminal 2 located within the insertion hole 12 further comprises at least one contact 23. In a further embodiment, the conductive terminal 2 forms at least one contact 23 on its section within the insertion hole 12. This contact 23 can be made into a rectangular contact 23 or a circular contact 23 according to design requirements. When the wire-end connector and the board-end connector are mated, the contact 23 of the conductive terminal 2 acts as an active contact component, directly pressing against the corresponding contact portion on the board-end connector, thereby establishing a stable electrical path at the mechanical contact interface. Specifically, the rectangular contact 23, due to its larger contact surface width, can provide a larger contact area during insertion, reducing contact resistance and enhancing current carrying capacity, making it suitable for applications requiring low impedance and high current transmission. The circular contact 23, with its multi-point line contact characteristics, possesses excellent self-cleaning and anti-oxidation properties, automatically scraping off surface oxide films or micro-dust particles during insertion and removal, ensuring long-term conductive reliability of the contact surface.

[0032] Preferably, the insulating substrate 1 also includes a separately configured signal connector (not shown). In a further embodiment of this solution, a separately configured signal connector is provided on the outside of the insulating substrate 1; by designing the signal connection part as an independent unit that can be arranged separately, the user can flexibly insert the corresponding signal connector near the main power connector according to actual application needs, thereby forming a combination mode of power supply main body + separately configured signal interface in structure.

[0033] Preferably, the insulating substrate 1 also includes a detachable signal connector (not shown). In a further embodiment of this design, the insulating substrate 1 is provided with a detachable signal connector. By employing a detachable installation method, the signal connector is no longer permanently fixed to the main power connector, but is temporarily installed as an independent unit outside the main connector via plugging, snapping, or screwing. This allows for signal transmission when needed and easy disassembly when not in use. This design effectively avoids the problems of structural complexity, assembly difficulty, and inconvenient maintenance associated with traditional integrated power and signal composite structures.

[0034] 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 an insulating substrate, at least one conductive terminal, and a cable, wherein at least one wire placement hole is formed at one end of the insulating substrate and at least one insertion hole is formed at the other end, the wire placement hole communicating with the insertion hole; Its features are: The conductive terminal has at least one anti-reverse spring arm, and an anti-reverse bracket matching the anti-reverse spring arm is formed inside the insulating substrate. The conductive terminal is installed in the insulating substrate by fastening the anti-reverse bracket with the anti-reverse spring arm. At the same time, one end of the conductive terminal is placed in the wire hole, and the other end is placed in the plug hole. The cable is connected to the part of the conductive terminal placed in the wire hole.

2. An electrical connector according to claim 1, characterized in that: The conductive terminal also has at least one stop spring arm, which is disposed on the other side of the anti-reverse spring arm.

3. An electrical connector according to claim 2, characterized in that: The insulating substrate also contains a stop plate that matches the stop spring arm.

4. An electrical connector according to claim 3, characterized in that: The forward stop arm is mirror-mounted on the other side of the backward stop arm.

5. An electrical connector according to claim 1, characterized in that: The insulating substrate is also provided with a locking fastener.

6. An electrical connector according to claim 1, characterized in that: The cable is riveted to a section of the conductive terminal placed inside the cable hole.

7. An electrical connector according to claim 6, characterized in that: The conductive terminal is a rivet terminal.

8. An electrical connector according to claim 1, characterized in that: The section of the conductive terminal placed inside the socket also has at least one contact point.

9. An electrical connector according to claim 1, characterized in that: The insulating substrate also includes a separately configured signal connector.

10. An electrical connector according to claim 1, characterized in that: The insulating substrate also includes a detachable signal connector.

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