Connector with high connection stability

Abstract

The invention relates to a connector with high connection stability, and relates to the technical field of connectors, the connector comprises a hole seat, a female pin and a fixing piece, one side of the hole seat is provided with a pin inserting cavity for the female pin to be inserted and fixed, the female pin comprises a wiring part, a limiting part and a pin connecting part which are connected in sequence, the fixing piece is installed on the hole seat, and the limiting part is installed on the hole seat. The fixing piece is installed on the side, close to the opening of the pin cavity, of the limiting part, and an insertion hole communicated with the pin cavity is formed in the side face, away from the fixing piece, of the hole seat; a positioning column inserted into the needle connecting part is fixedly arranged on the edge of an opening, close to the needle inserting cavity, of the inserting hole, and a plurality of positioning convex blocks for limiting the outer side face of the needle connecting part are fixedly arranged on the inner wall of the needle inserting cavity; according to the invention, after multiple times of plugging, the connector enables the plugging force to tend to be stable through the interference of the positioning bumps on the inner wall of the housing on the terminals, thereby guaranteeing the plugging stability of the terminals, and improving the overall performance of the connector.

Description

Technical Field

[0001] The present application relates to the technical field of connectors, and in particular to a connector with high connection stability. Background Art

[0002] Connectors, especially those that include a pin header and a socket header that can be plugged into each other, are an indispensable component of electronic devices. The working principle of connectors is based on physical contact and electrical principles. When the pin on the pin header is inserted into the socket or contact of the socket, a stable electrical connection can be formed due to the good conductivity and appropriate contact force between the pin and the socket or contact. This connection allows current or signals to be transmitted between electronic devices.

[0003] In the related technology, there is a utility model with publication number CN117855921B, a connector, including a socket, a female pin and a fixing part, wherein a pin cavity is opened on one of the surfaces of the socket, the female pin is inserted in the pin cavity, and the female pin is used to connect with the wire of the branch line, the fixing part is detachably connected to the socket, the female pin includes a limiting part, the fixing part is located on a side of the limiting part close to the opening of the pin cavity, and the fixing part is used to interfere with the female pin.

[0004] When the connector is used in scenarios that require frequent plugging and unplugging, problems gradually emerge. Frequent plugging and unplugging often causes the connection between the female pin and the socket to become loose, which significantly reduces the holding force of the socket on the female pin, thus affecting the performance of the connector. This may not only affect the normal operation of the connector, but also cause safety hazards, and there is room for improvement. Summary of the invention

[0005] The purpose of the present application is to provide a connector with high connection stability, so as to solve the problem in the above-mentioned related art that after a period of plugging and unplugging, the holding force between the female pin and the pin seat is reduced, and the connector is prone to loosening.

[0006] The present application provides a connector with high connection stability using the following technical solution: A connector with high connection stability comprises a socket, a female pin and a fixing piece, wherein a pin cavity for inserting and fixing the female pin is provided on one side of the socket, and the female pin comprises a wiring portion, a limiting portion and a pin contact portion which are connected in sequence, and the fixing piece is mounted on the socket, and the fixing piece is mounted on a side of the limiting portion close to the opening of the pin cavity, and an insertion hole communicating with the pin cavity is provided on the side of the socket away from the fixing piece; a positioning column inserted into the interior of the pin contact portion is fixedly arranged on the opening edge of the insertion hole close to the pin cavity, and a plurality of positioning protrusions which limit the outer side surface of the contact pin portion are fixedly arranged on the inner wall of the pin cavity.

[0007] By adopting the above technical solution, the connector is fixedly provided with a positioning column on the opening edge of the insertion hole near the pin cavity, and the positioning column can penetrate deep into the interior of the pin contact part, playing a role of precise guidance and stable support. At the same time, a plurality of positioning protrusions are fixedly provided on the inner wall of the pin contact cavity, and these positioning protrusions form an effective limiting structure on the outer surface of the contact pin part; after multiple plugging and unplugging, the connector makes the plugging and unplugging force tend to be stable through the interference of the positioning protrusions on the inner wall of the shell with the terminal, thereby ensuring the plugging and unplugging stability of the terminal and improving the overall performance of the connector.

[0008] Optionally, a shell hook that can swing is provided on one of the surfaces of the hole seat, and one end of the shell hook is a pressing end; the fixing part includes a fixing seat, a stop block corresponding to the number of female needles, a limit block for controlling the pressing stroke of the shell hook, and a locking plate detachably connected to the shell hook, and the locking plate is provided with a locking notch for the upper protrusion of the pressing end to be engaged.

[0009] By adopting the above technical solution, the pressing end of the shell hook is easy for users to operate, and the unlocking and locking states of the shell hook can be controlled by pressing. The locking notch on the locking plate cooperates with the protrusion on the upper side of the pressing end to ensure the stability of the shell hook in the locked state, and also realize the assembly locking of the fixing part and the hole seat. At the same time, the limit block effectively controls the pressing stroke of the shell hook to prevent damage caused by excessive operation. This design not only improves the convenience of connector operation, but also significantly enhances the stability and safety of the connection between the female pin and the hole seat, providing a strong guarantee for stable signal transmission between electronic devices.

[0010] Optionally, an elastic clamping plate is fixedly provided on the outer side surface of the pin contact portion, and a limiting clamping groove for the elastic clamping plate to be clamped into is opened on the inner wall of the pin insertion cavity.

[0011] By adopting the above technical solution, an elastic card plate is added to the outer surface of the pin connector of the connector, and cooperates with the limit card slot on the inner wall of the pin cavity to achieve a further stable connection between the female pin and the socket. The elastic card plate has a certain elasticity and restoring force, and can automatically snap into the limit card slot during the insertion of the female pin into the pin cavity to form a reliable locking structure. This design not only simplifies the installation process of the connector and improves the installation efficiency, but also effectively prevents the female pin from accidentally falling off during the plugging and unplugging process, and enhances the stability and safety of the connection. At the same time, the cooperation between the elastic card plate and the limit card slot also has a certain degree of fault tolerance, which can adapt to a certain degree of manufacturing tolerance and installation error, further improving the reliability and durability of the connector.

[0012] Optionally, a plurality of the positioning protrusions are symmetrically fixed on two opposite inner walls of the pin cavity.

[0013] By adopting the above technical solution, the balance and accuracy of the female pin during the insertion process are ensured through symmetrical distribution. This structural layout helps to reduce the loose connection caused by improper installation or external force impact, and improves the overall reliability and durability of the connector. At the same time, the symmetrical positioning bump design also simplifies the manufacturing and assembly process of the connector, reduces production costs, and improves production efficiency. Therefore, this technical solution has significant advantages in improving the connection stability and production efficiency of the connector.

[0014] Optionally, a first inclined surface is provided on the edge of the positioning protrusion facing the opening of the pin cavity.

[0015] By adopting the above technical solution, the first bevel is provided to facilitate the smooth insertion of the female pin into the pin cavity. During the insertion of the female pin, the first bevel can play a guiding role, guiding the female pin to gradually enter the pin cavity along the correct path, thereby reducing the insertion difficulty caused by insertion angle deviation or excessive resistance.

[0016] Optionally, a second inclined surface is provided on the opening edge of the positioning column facing the pin cavity.

[0017] By adopting the above technical solution, the presence of the second bevel helps the female pin, especially its contact pin part, to be inserted into the pin insertion cavity more smoothly. During the insertion process, the second bevel can guide the contact pin part to gradually enter the pin insertion cavity along the bevel, reducing the resistance and wear caused by direct collision, and also reducing the potential risk of damage to the contact pin part structure.

[0018] Optionally, a plurality of bubble points are fixedly arranged on two opposite inner walls of the needle receiving portion, and a limiting groove corresponding to the bubble points is formed on a side of the needle receiving portion away from the bubble points.

[0019] By adopting the above technical solution, the setting of the bubble point increases the contact area and friction between the pin contact part and the socket or contact point, thereby improving the stability and reliability of the connection. When the male pin is inserted into the pin contact part, the bubble point can fit tightly with the outer side of the male pin to form an effective physical connection, preventing the connector from loosening or falling off during use.

[0020] Optionally, a fixing plate is provided inside the pin insertion cavity, and a fixing through hole is formed on the fixing plate for the positioning column to pass through, and two limiting plates are fixed side by side on one side of the fixing plate; a gap is preset between the two limiting plates for the pin connector to be inserted, and the side surfaces of the two limiting plates close to each other are pressed against the outer side surfaces opposite to the pin connector, and the pin connector is tightened inwardly under the squeezing of the two limiting plates.

[0021] By adopting the above technical solution, during the installation process, the pin connector of the female pin can be pre-placed between the two limit plates, and the inner side of the limit plate is tightly against the outer side of the pin connector. This pre-setting method not only simplifies the installation steps of the female pin, but also through the squeezing effect of the limit plate, the pin connector is already in a stable state before installation, which greatly reduces the risk of deformation of the female pin during installation. When the female pin and the fixing assembly are installed in the pin cavity as a whole, the positioning column can smoothly pass through the fixing through hole, and the elastic card plate is also accurately inserted into the corresponding limit card slot. This series of actions not only ensures the correct positioning of the female pin in the pin cavity, but also realizes multiple limits and stable support for the female pin through the joint action of the positioning column, the fixing plate, the limit plate and the positioning protrusion.

[0022] Optionally, a limiting protrusion that can be inserted into the limiting groove is fixedly provided on the side surfaces of the two limiting plates that are close to each other.

[0023] By adopting the above technical solution, when the pin contact part is placed between the two limit plates, the limit protrusion can be accurately inserted into the limit groove to form an effective locking structure. This design not only limits the shaking and misalignment of the pin contact part during the plugging and unplugging process, but also improves the overall connection strength and reliability of the connector.

[0024] Optionally, guide convex plates are fixedly provided on the sides of the two limit plates that are away from each other, and guide gaps for the guide convex plates to be inserted are preset between adjacent positioning protrusions on the inner wall of the pin cavity on the same side.

[0025] By adopting the above technical solution, when the pin connector is placed between the two limiting plates, the limiting protrusion can be accurately inserted into the limiting groove to form an effective locking structure. This design not only limits the shaking and misalignment of the pin connector during the plugging and unplugging process, but also improves the overall connection strength and reliability of the connector. In addition, the design of the limiting protrusion also simplifies the installation and disassembly process of the connector. The user only needs to align the pin connector with the gap between the limiting plates and gently push to complete the installation. Similarly, when disassembling, the user only needs to apply appropriate force to make the limiting protrusion disengage from the limiting groove to achieve rapid disassembly of the connector.

[0026] In summary, this application includes the following beneficial technical effects: The connector has a fixed positioning column on the opening edge of the insertion hole near the pin cavity. The positioning column can penetrate deep into the pin contact part, playing a role of precise guidance and stable support. At the same time, a plurality of positioning bumps are fixed on the inner wall of the pin cavity, and these positioning bumps form an effective limiting structure on the outer surface of the pin contact part; after multiple plugging and unplugging, the connector stabilizes the plugging and unplugging force through the interference of the positioning bumps on the inner wall of the shell with the terminal, thereby ensuring the plugging and unplugging stability of the terminal and improving the overall performance of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application; Figure 2 It is a schematic diagram of the explosion structure of Example 1 of the present application; Figure 3 It is a schematic cross-sectional structure diagram of the installation and matching of the female pin in Example 1 of the present application; Figure 4 This is a schematic diagram of the structure of the installation distribution of the wiring part, the limiting part and the pin contact part in Example 1 of the present application; Figure 5 It is a partial cross-sectional structural schematic diagram of the installation distribution of the positioning column and the positioning protrusion in Example 1 of the present application; Figure 6 It is a partial cross-sectional structural schematic diagram of the installation distribution of the positioning column and the positioning protrusion in Example 1 of the present application; Figure 7 It is a schematic cross-sectional structure diagram of the installation and matching of the female pin in Example 2 of the present application; Figure 8 This is a schematic diagram of the structure of the second embodiment of the present application, which embodies the assembly and cooperation of the fixing component and the female pin; Fig. 9 This is a schematic diagram of the structure of the assembly and cooperation of the fixing plate and the limiting plate in Example 2 of the present application; Fig.10 It is a schematic diagram of the partial cross-sectional structure of the installation cooperation of the limit plate in Example 2 of the present application.

[0029] In the figure, 1, hole seat; 11, pin cavity; 111, guide gap; 12, insertion hole; 13, shell hook; 131, pressing end; 14, limiting slot; 15, positioning column; 151, second inclined surface; 16, positioning protrusion; 161, first inclined surface; 2, female pin; 21, wiring part; 22, limiting part; 23, needle connection part; 231, elastic card plate; 232, bubble point; 233, limiting groove; 3, fixing part; 31, fixing seat; 32, stop block; 33, limiting block; 34, locking plate; 341, locking notch; 4, fixing assembly; 41, fixing plate; 411, fixing through hole; 42, limiting plate; 421, limiting protrusion; 422, guide protrusion. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0031] Embodiment 1: Reference Figure 1 , Figure 2 and Figure 3 A connector with high connection stability includes a socket 1, a female pin 2 and a fixing member 3, wherein the number of the female pins 2 is three, and three pin cavities 11 for inserting and fixing the three female pins 2 are opened on one side of the socket; in other embodiments, the number of the female pins 2 can also be one, two, four or more.

[0032] The female pin 2 includes a wiring portion 21, a limiting portion 22 and a pin connection portion 23 which are connected in sequence, and the three wiring portions 21, the limiting portion 22 and the pin connection portion 23 are integrally formed; an insertion hole 12 which is connected to the pin cavity 11 is provided on the side of the socket 1 away from the fixing member 3, and the fixing member 3 is installed on the socket 1, and the fixing member 3 is installed on the side of the limiting portion 22 close to the opening of the pin cavity 11, so as to prevent the female pin 2 from falling out of the pin cavity 11.

[0033] Reference Figure 2 and Figure 3 A shell hook 13 capable of swinging is integrally formed on one surface of the hole seat 1, and the fixing member 3 includes a fixing seat 31, a stop block 32 corresponding to the number of the female needles 2, a limit block 33 for controlling the pressing stroke of the shell hook 13, and a locking plate 34 detachably connected to the shell hook 13, and the fixing seat 31, the stop block 32, the limit block 33 and the locking plate 34 are integrally injection molded; One end of the shell hook 13 is a pressing end 131, and the unlocking of the socket 1 and the corresponding needle socket is controlled by pressing the pressing end 131; a locking notch 341 is provided on the locking plate 34 for the upper protrusion of the pressing end 131 to be inserted into; when the fixing member 3 and the socket 1 are assembled, the stop block 32 is inserted into the pin cavity 11, the limit block 33 slides between the pressing end 131 and the outer side surface of the socket 1, and the upper protrusion of the pressing end 131 is inserted into the locking notch 341.

[0034] Reference Figure 3 and Figure 4 An elastic card plate 231 is integrally formed on the outer surface of the pin connector 23, and a limiting card groove 14 for the elastic card plate 231 to be inserted into the inner wall of the pin cavity 11 is opened; after the female pin 2 is installed into the pin cavity 11, the elastic card plate 231 is inserted into the corresponding limiting card groove 14, and then the stop block 32 on the fixing member 3 is used to lock the pin connector 23.

[0035] Reference Figure 4 and Figure 5Two bubble points 232 are fixed on the two opposite inner walls of the needle contact part 23, and a limiting groove 233 corresponding to the bubble point 232 is opened on the side of the needle contact part 23 away from the bubble point 232. The two bubble points 232 are formed by stamping equipment; when the hole seat 1 of the connector is plugged into the corresponding needle seat, the corresponding male needle passes through the insertion hole 12 and is inserted into the needle contact part 23, and the outer side surface of the bubble point 232 is tightly pressed against the male needle, which increases the tightness and stability of the connection.

[0036] Reference Figure 5 and Figure 6 A positioning column 15 inserted into the pin receiving portion 23 is integrally formed on the opening edge of the insertion hole 12 near the pin cavity 11, and four positioning protrusions 16 for limiting the outer side surface of the pin receiving portion 23 are integrally formed on the inner wall of the pin cavity 11 of the socket 1, wherein the four positioning protrusions 16 form a group of two and are symmetrically fixed on the two opposite inner walls of the pin cavity 11; A first inclined surface 161 is provided on the edge of the positioning protrusion 16 facing the opening of the pin cavity 11, and a second inclined surface 151 is provided on the edge of the opening of the positioning column 15 facing the pin cavity 11; when the female pin 2 is inserted into the pin cavity 11, it can be installed more efficiently along the first inclined surface 161 and the second inclined surface 151; After the female pin 2 is installed, the four positioning protrusions 16 limit the outer side of the pin part 23, and the positioning column 15 is inserted into the interior of the pin part 23 for auxiliary positioning; during the use of the connector, after multiple plugging and unplugging, the inner wall of the shell interferes with the terminal, so that the plugging and unplugging force tends to be stable, thereby ensuring the plugging and unplugging stability of the terminal.

[0037] The implementation principle of the embodiment of the present application is: The connector optimizes the installation process of the female pin 2 and improves the installation efficiency through structures such as the positioning column 15 on the insertion hole 12 and the positioning protrusion 16 in the pin cavity 11. After multiple plugging and unplugging, the connector stabilizes the plugging and unplugging force through the interference of the inner wall of the shell on the terminal, thereby ensuring the plugging and unplugging stability of the terminal and improving the overall performance of the connector.

[0038] Embodiment 2: Reference Figure 7 , Figure 8 Fig. 9 and Fig.10 The difference between this embodiment and the first embodiment is that a fixing assembly 4 is provided inside the pin cavity 11, wherein the fixing assembly 4 comprises a fixing plate 41 and two limiting plates 42 fixed side by side on one side of the fixing plate 41, wherein the fixing plate 41 is provided with a fixing through hole 411 for the positioning column 15 to pass through and communicate with the insertion hole 12, and a gap is preset between the two limiting plates 42 for the pin receiving portion 23 to be placed; The two limiting plates 42 have a limiting protrusion 421 formed on the sides close to each other, which can be inserted into the limiting groove 233; the two limiting plates 42 have a guide convex plate 422 formed on the sides away from each other, and a guide gap 111 is preset between adjacent positioning protrusions 16 on the inner wall of the same side for the guide convex plate 422 to be inserted into; When assembling the connector, the female pin 2 is pre-installed between the two limiting plates 42, so that the sides of the two limiting plates 42 close to each other are pressed against the outer side of the contact pin portion 23, and the limiting protrusion 421 is inserted into the corresponding limiting groove 233. At this time, the contact pin portion 23 is tightened inwardly under the pressure of the two limiting plates 42, so as to pre-install the female pin 2 and the fixing assembly 4; in this process, the two limiting plates 42 can also be pressed against the contact pin portion 23 to limit the position, thereby reducing the possibility of deformation of the female pin 2 during the subsequent installation process; Then install the female pin 2 and the fixing assembly 4 as a whole into the pin cavity 11. During this process, the limiting protrusion slides into the pin cavity 11 along the guide gap 111 until the positioning column 15 passes through the fixing through hole 411 and the elastic card plate 231 is inserted into the corresponding limiting card groove 14; finally, use the fixing part 3 to further lock the female pin 2.

[0039] The implementation principle of the embodiment of the present application is: During assembly, first, by utilizing the close fit between the limiting plate 42 and the pin connector 23 of the female pin 2, the limiting protrusion 421 is snapped into the limiting groove 233, so that the female pin 2 is pre-installed and kept stable under the squeezing of the two limiting plates 42; then, the pre-installed female pin 2 and the fixing assembly 4 are slid into the guide gap 111 on the inner wall of the pin cavity 11 as a whole, until the positioning column 15 passes through the fixing through hole 411 and the elastic clamping plate 231 is snapped into the limiting groove 14, so as to achieve preliminary fixation; finally, the female pin 2 is further locked by the fixing member 3 to ensure the stability and reliability of the entire connector.

[0040] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A connector with high connection stability, comprising a socket (1), a female pin (2) and a fixing member (3); a pin cavity (11) for inserting and fixing the female pin (2) is provided on one side of the socket (1); the female pin (2) comprises a wiring portion (21), a stop portion (22) and a pin receiving portion (23) connected in sequence; the fixing member (3) is mounted on the socket (1); the fixing member (3) is mounted on a side of the stop portion (22) close to an opening of the pin cavity (11); an insertion hole (12) communicating with the pin cavity (11) is provided on a side of the socket (1) away from the fixing member (3); It is characterized in that A positioning column (15) inserted into the interior of the pin connection part (23) is fixedly provided on the opening edge of the insertion hole (12) close to the pin insertion cavity (11), and a plurality of positioning protrusions (16) are fixedly provided on the inner wall of the pin insertion cavity (11) for limiting the outer side surface of the pin connection part (23).

2. A connector with high connection stability according to claim 1, characterized in that: A shell hook (13) capable of swinging is arranged on one of the surfaces of the hole seat (1), and one end of the shell hook (13) is a pressing end (131); the fixing member (3) comprises a fixing seat (31), a stop block (32) corresponding to the number of the female needles (2), a limit block (33) for controlling the pressing stroke of the shell hook (13), and a locking plate (34) detachably connected to the shell hook (13), and the locking plate (34) is provided with a locking notch (341) for the upper protrusion of the pressing end (131) to be inserted.

3. A connector with high connection stability according to claim 1, characterized in that: An elastic clamping plate (231) is fixedly provided on the outer surface of the pin connection portion (23), and a limiting clamping groove (14) for the elastic clamping plate (231) to be clamped is provided on the inner wall of the pin insertion cavity (11).

4. A connector with high connection stability according to claim 1, characterized in that: A plurality of positioning protrusions (16) are symmetrically fixed on two opposite inner walls of the pin insertion cavity (11).

5. A connector with high connection stability according to claim 1, characterized in that: A first inclined surface (161) is provided on the edge of the positioning protrusion (16) facing the opening of the pin cavity (11).

6. A connector with high connection stability according to claim 1, characterized in that: A second inclined surface (151) is provided on the opening edge of the positioning column (15) facing the pin insertion cavity (11).

7. A connector with high connection stability according to claim 1, characterized in that: A plurality of bubble points (232) are fixedly arranged on two opposite inner walls of the needle connection part (23), and a limiting groove (233) corresponding to the bubble point (232) is opened on the side of the needle connection part (23) away from the bubble point (232).

8. A connector with high connection stability according to claim 7, characterized in that: A fixing plate (41) is provided inside the pin cavity (11), a fixing through hole (411) for the positioning column (15) to pass through is provided on the fixing plate (41), and two limiting plates (42) are fixedly arranged side by side on one side of the fixing plate (41); A gap is preset between the two limiting plates (42) for the needle receiving portion (23) to be placed therein, and the side surfaces of the two limiting plates (42) close to each other are pressed against the outer side surfaces of the needle receiving portion (23) opposite thereto, and the needle receiving portion (23) is tightened inwardly under the pressure of the two limiting plates (42).

9. A connector with high connection stability according to claim 8, characterized in that: A limiting protrusion (421) capable of being inserted into the limiting groove (233) is fixedly provided on the side surfaces of the two limiting plates (42) that are close to each other.

10. A connector with high connection stability according to claim 8, characterized in that: A guide convex plate (422) is fixedly provided on the side surfaces of the two limit plates (42) that are away from each other, and a guide gap (111) for the guide convex plate (422) to be inserted is preset between adjacent positioning convex blocks (16) on the inner wall of the pin insertion cavity (11) on the same side.

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