A high-voltage connector with stable connection

Abstract

This utility model discloses a stable high-voltage connector, which includes a female socket and a male plug. The female socket has several conductive sockets, and the male plug has conductive terminals corresponding to the sockets. A top rod is provided at the inner bottom of each conductive socket. One end of each conductive terminal has several outwardly expanding extensions evenly distributed along the circumference, with a spacing between adjacent extensions for their movement. The top rod has a spreading portion that allows the extensions to expand outwards. The spreading portion ensures that the extensions fit tightly against the inner wall of the conductive socket, ensuring a secure mechanical connection between the male and female plugs, increasing the contact area between the conductive terminals and the sockets, reducing contact resistance, preventing localized overheating, enhancing the connector's resistance to vibration and impact, reducing the risk of interface loosening, suppressing minor displacement of the contact surface and oxide layer peeling, and ensuring electrical connection stability and equipment operational reliability.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a high-voltage connector with stable connection. Background Technology

[0002] Connectors, also known as plugs or sockets, are electrical components used to connect two active devices and transmit current or signals. In addition to meeting basic performance requirements, good contact and reliable operation are crucial for connectors.

[0003] In existing technologies, female plugs often have a relatively simple structure, and their mating methods with male plugs are correspondingly simplified. They lack devices to enhance connection stability. In practical applications, connectors are frequently subjected to physical forces such as vibration and impact, which can easily lead to loosening between the male and female plugs. Vibration causes minute displacement of the pins and socket contact surfaces or peeling of the oxide layer, resulting in a reduced actual contact area and a significant increase in contact resistance. This, in turn, generates localized heat, threatening connection stability and equipment reliability. Therefore, the applicant has developed a beneficial design and found a solution to the above problems. The technical solution described below arose from this context. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of traditional high-voltage connector designs and provide a product with stable connection and reliable operation.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A stable high-voltage connector includes a female socket and a male plug. The female socket has a plurality of conductive sockets, and the male plug has conductive terminals with corresponding sockets. The inner bottom of the conductive socket has a top rod. One end of the conductive terminal has a plurality of outwardly expandable extensions evenly distributed along the circumference. There is a gap between adjacent extensions for them to move. The top rod has a spreading part for expanding the extensions outward. The entrance of the conductive socket has a component for resetting the extensions after expansion or for retracting them inward.

[0007] Preferably, the top rod has an inclined surface and is located above the spreading portion.

[0008] Preferably, the conductive socket has a recessed groove at its inlet.

[0009] Preferably, the component that causes the extension to expand and then reset or to retract inward is configured as a guide, the guide having a threaded portion and being threadedly connected to the groove, the threaded portion having a through hole for the conductive terminal to pass through.

[0010] Preferably, the inner wall of the through hole is provided with a protrusion, and one end of the protrusion is provided with an inclined first guide surface for causing the extension to retract toward the axial direction of the conductive terminal.

[0011] Preferably, the other end of the protrusion is provided with an inclined second guide surface for resetting the extension to its initial position after it disengages from the push rod.

[0012] Beneficial effects:

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention ensures the mechanical reliability of the connection between the male plug and the female socket by using a spreading part to tightly fit the extension part against the inner wall of the conductive socket. Secondly, it effectively increases the actual contact area between the conductive terminal and the conductive socket. Thirdly, due to the increased contact area, the contact resistance is significantly reduced. In addition, the low contact resistance helps prevent local overheating at the connection point. At the same time, this structural design enhances the connector's ability to resist external physical forces such as vibration and impact, reduces the risk of loosening of the connection interface, and suppresses the possibility of minor displacement or oxide layer peeling at the contact surface between the conductive terminal and the conductive socket due to vibration. Ultimately, it ensures the stability of the electrical connection and the reliability of equipment operation. Attached Figure Description

[0015] Figure 1 This is a side cross-sectional view of a high-voltage connector with stable connection according to the present invention.

[0016] Figure 2 This utility model Figure 1 A partially enlarged view (A) of a high-voltage connector with stable connection;

[0017] Figure 3 This is an exploded structural diagram of a high-voltage connector with stable connection according to the present invention.

[0018] Figure 4 This is a schematic diagram of the male plug structure of a high-voltage connector with stable connection according to the present invention;

[0019] The correspondence between the labels and component names in the attached figures is as follows:

[0020] Reference numerals: 1. Female socket; 2. Male plug; 3. Conductive socket; 4. Conductive terminal; 5. Guide; 31. Top rod; 32. Inclined surface; 33. Spreading part; 34. Recess; 41. Extension part; 42. Spacing; 51. Threaded part; 52. Through hole; 53. Protrusion; 54. First guide surface; 55. Second guide surface. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0024] Reference example Figures 1 to 4 A high-voltage connector with stable connection includes a female socket 1 and a male plug 2. The female socket 1 is provided with a plurality of conductive sockets 3. The male plug 2 is provided with conductive terminals 4 corresponding to the sockets. The inner bottom of the conductive socket 3 is provided with a top rod 31. One end of the conductive terminal 4 is provided with a plurality of outwardly expandable extensions 41 evenly distributed along the circumferential direction. A gap 42 is provided between adjacent extensions 41 for their movement. The top rod 31 is provided with a spreading part 33 for spreading the extensions 41 outward. The entrance of the conductive socket 3 is provided with a component for resetting the extensions 41 after expansion or for retracting them inward.

[0025] The extension 41 is tightly fitted to the inner wall of the conductive socket 3 by the spreading part 33, ensuring the mechanical reliability of the connection between the male plug 2 and the female socket 1; secondly, it effectively increases the actual contact area between the conductive terminal 4 and the conductive socket 3; thirdly, due to the increase in contact area, the contact resistance is significantly reduced; in addition, the low contact resistance helps prevent local overheating at the connection point; at the same time, this structural design enhances the connector's ability to resist external physical forces such as vibration and impact, reduces the risk of loosening of the connection interface, and suppresses the possibility of slight displacement or oxide layer peeling of the contact surface between the conductive terminal 4 and the conductive socket 3 due to vibration; ultimately, it ensures the stability of the electrical connection and the reliability of equipment operation.

[0026] It is worth mentioning that the top rod 31 is provided with an inclined surface 32 and is located above the expansion part 33. The inclined surface 32 of the top rod 31 enters the space between the extension parts 41 first. The extension parts 41 move along the inclined surface 32 and are acted upon by it, realizing a gradual outward expansion action. When the extension parts 41 travel to the area of ​​the expansion part 33, its configuration allows the extension parts 41 to closely abut against the inner wall of the conductive socket 3, thereby forming a stable connection state. This process ensures reliable contact and positioning between the extension parts 41 and the inner wall of the socket. The extension parts 41 and the inclined surface 32 are in close contact, and the extension parts 41 and the conductive socket 3 are in close contact, effectively providing contact area and reducing contact resistance value.

[0027] It is worth mentioning that the conductive socket 3 has a recessed groove 34 at its inlet;

[0028] It is worth mentioning that the component that causes the extension 41 to expand and then reset or to retract inward is a guide 5. The guide 5 is provided with a threaded part 51 and is threadedly connected to the groove 34. The threaded part 51 is provided with a through hole 52 for the conductive terminal 4 to pass through.

[0029] It is worth mentioning that the inner wall of the through hole 52 is provided with a protrusion 53, and one end of the protrusion 53 is provided with an inclined first guide surface 54, which is used to make the extension 41 retract towards the axis of the conductive terminal 4. When the extension 41 enters the through hole 52 first, the extension 41 moves on the first guide surface 54. The first guide surface 54 is designed to have a certain taper to guide the extension 41 to enter smoothly. This movement process constrains the extension 41, limiting the elastic deformation of the material caused by the radial expansion force it was previously subjected to. Through this constraint, it is ensured that the actual outer diameter of the extension 41 during the entry process is always smaller than the predetermined outer diameter of the protrusion 53, maintaining the size difference between the two, ensuring that the extension 41 enters the conductive socket 3 smoothly and is inserted into the top rod 31. At the same time, the first guide surface 54 can also calibrate the entry path of the extension 41 and reduce the axis offset.

[0030] It is worth mentioning that the other end of the protrusion 53 is provided with an inclined second guide surface 55, which is used to reset the extension 41 to its initial position after it is disengaged from the push rod 31. After the extension 41 is disengaged from the push rod 31, its outermost part moves along the direction set by the second guide surface 55. This second guide surface 55 is designed to cooperate with the elastic properties of the material of the extension 41 itself, so that the extension 41 returns to its initial state during the movement. This structure ensures that when the extension 41 is subsequently withdrawn from the conductive socket 3, its contour or size relationship meets the requirements for smooth separation and avoids jamming.

[0031] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A high-voltage connector with stable connection, comprising a female socket (1) and a male plug (2), the female socket (1) is provided with a plurality of conductive sockets (3), the male plug (2) is provided with conductive terminals (4) corresponding to the sockets, characterized in that: The conductive socket (3) has a top rod (31) at its inner bottom. One end of the conductive terminal (4) is provided with several outwardly expandable extensions (41) evenly distributed along the circumferential direction. There is a gap (42) between adjacent extensions (41) for their movement. The top rod (31) is provided with a support part (33) for the extensions (41) to be opened outward. The entrance of the conductive socket (3) is provided with a component for the extensions (41) to be reset after expansion or to be contracted inward.

2. The connection-stable high-voltage connector according to claim 1, characterized in that: The top rod (31) has an inclined surface (32) and is located above the expansion part (33).

3. The high-voltage connector with stable connection according to claim 1, characterized in that: The conductive socket (3) has a recess (34) at its entrance.

4. The high-voltage connector with stable connection according to claim 3, characterized in that: The component that expands and resets or retracts the extension (41) is configured as a guide (5). The guide (5) has a threaded portion (51) and is threadedly connected to the groove (34). The threaded portion (51) has a through hole (52) through which the conductive terminal (4) passes.

5. The high-voltage connector with stable connection according to claim 4, characterized in that: The inner wall of the through hole (52) is provided with a protrusion (53), and one end of the protrusion (53) is provided with an inclined first guide surface (54) for causing the extension (41) to contract toward the axial direction of the conductive terminal (4).

6. The high-voltage connector with stable connection according to claim 5, characterized in that: The other end of the protrusion (53) is provided with an inclined second guide surface (55) for resetting the extension (41) to its initial position after it is disengaged from the top rod (31).

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