Connector pin fixing structure with improved structure

Abstract

The utility model discloses a connector pin fixing structure with an improved structure. The connector pin fixing structure comprises an insertion cylinder; the insulation structure is arranged on the insertion cylinder; the contact pin is arranged on the insulation structure, and the insulation structure is provided with a jack for the contact pin to be inserted; the limiting part is arranged on the contact pin, and the limiting part abuts against the insulation structure; the annular limiting bulges are arranged on the insulating structure at intervals and are positioned in the jacks; and the first annular grooves are formed in the contact pins at intervals, and the first annular grooves are matched with the annular limiting protrusions. The pin is inserted into the jack, the limiting part of the pin abuts against the upper end face of the insulation structure, the pin is fixed, after the pin is fixed, the annular limiting protrusion on the insulation structure is clamped into the first annular groove, and the stability of the pin is improved. Through the above structural design, after the pin is inserted into the insulation structure, the pin is limited to come off through the cooperation of the annular limiting projection and the first annular groove, and the anti-pulling performance of the pin is greatly enhanced, thereby enhancing the stability of the electric connector.

Description

Technical Field

[0001] This application relates to the field of pin fixing technology, and in particular to a connector pin fixing structure with structural improvements. Background Technology

[0002] Electrical connectors have many pins. The main function of the pins is to interconnect with related devices. The stability of the pins directly affects the stability of the electrical connector, and the pin fixing structure directly affects the stability of the pins.

[0003] In existing technologies, pins are generally pressed into the socket by force, but this forced insertion method results in poor pull-out resistance of the pins, which can easily lead to loosening of the pins during long-term use and affect the connection effect of the electrical connector.

[0004] Therefore, it is necessary to propose an improved connector pin fixing structure to enhance the stability of the pins, which has become an important technical problem that urgently needs to be solved. Utility Model Content

[0005] This application provides an improved connector pin fixing structure, which aims to solve the problem that in the prior art, pins are generally pressed into the socket by a forced insertion method. However, the forced insertion connection method results in poor pull-out resistance of the pins, which can easily lead to loosening of the pins during long-term use and affect the connection effect of the electrical connector.

[0006] To achieve the above objectives, this application proposes an improved connector pin fixing structure, comprising: a socket; an insulating structure disposed on the socket; a pin disposed on the insulating structure, the insulating structure having a socket for insertion of the pin; a limiting portion disposed on the pin and abutting against the insulating structure; an annular limiting protrusions spaced apart on the insulating structure and located within the socket; and a first annular groove spaced apart on the pin and adapted to the annular limiting protrusions.

[0007] In some embodiments, the invention further includes: a vertical protrusion disposed on the side of the insulating structure facing the limiting portion; and a second annular groove disposed on the limiting portion, the second annular groove being adapted to the vertical protrusion.

[0008] In some embodiments, the device further includes: an annular gap, wherein an annular gap is provided between the insulating structure and the insert; and a filling layer, wherein the annular gap is filled with a filling layer.

[0009] In some embodiments, the device further includes a guide portion, wherein the end of the socket is provided with a guide portion.

[0010] In some embodiments, it further includes: a rotation limiting part, the rotation limiting part being disposed in the insert.

[0011] In some embodiments, it further includes: a connection structure, the connection structure connecting pins.

[0012] This application proposes an improved connector pin fixing structure, comprising: a socket; an insulating structure disposed within the socket; a pin disposed within the insulating structure, the insulating structure having a socket for pin insertion; a limiting portion disposed within the pin and abutting against the insulating structure; an annular limiting protrusion spaced apart within the insulating structure and located within the socket; and a first annular groove spaced apart within the pin, the first annular groove fitting the annular limiting protrusion. During connector pin installation, the insulating structure is first installed into the socket, then the pin is aligned with the corresponding socket on the insulating structure. Using a dedicated insertion device, the pin is inserted into the socket, and the limiting portion of the pin abuts against the upper surface of the insulating structure, thus fixing the pin. After the pin is fixed, the annular limiting protrusions on the insulating structure also engage with the first annular groove, improving the pin's stability. Through the above structural design, after the pin is inserted into the insulating structure, the engagement of the annular limiting protrusion and the first annular groove restricts the pin from coming out, greatly enhancing the pin's pull-out resistance and thus improving the stability of the electrical connector. Attached Figure Description

[0013] 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, wherein:

[0014] Figure 1 This is a three-dimensional structural diagram of the improved connector pin fixing structure in one embodiment of this application;

[0015] Figure 2 This is a top view of an improved connector pin fixing structure according to an embodiment of this application;

[0016] Figure 3 This is a cross-sectional view of an improved connector pin fixing structure according to an embodiment of this application;

[0017] Figure 4 This is a magnified view of part A in section 3.

[0018] In the figure: 1. Insert tube; 2. Pin; 3. Limiting part; 4. Rotation limiting part; 5. Connecting structure; 6. Vertical protrusion; 7. Insulating structure; 8. Filling layer; 9. Annular limiting protrusion; 10. First annular groove; 11. Second annular groove; 12. Guide part. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0021] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0022] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0023] See Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this application proposes an improved connector pin fixing structure, comprising: a socket 1; an insulating structure 7 disposed on the socket 1; a pin 2 disposed on the insulating structure 7, the insulating structure 7 having a socket for insertion of the pin 2; a limiting part 3 disposed on the pin 2 and abutting against the insulating structure 7; an annular limiting protrusion 9 spaced apart on the insulating structure 7 and located within the socket; and a first annular groove 10 spaced apart on the pin 2 and adapted to the annular limiting protrusion 9.

[0024] The socket 1 is the structural basis of the improved connector pin fixing structure, and other structures in the improved connector pin fixing structure are directly or indirectly mounted on the socket 1. The socket 1 and the pins 2 on it are used to insert into the female electrical connector to form the connection of the circuit system. The insulating structure 7 is the structural basis of the pins 2. The insulating structure 7 is a stepped cylinder, and the socket 1 is provided with a matching stepped cylindrical hole. The limiting part 3 is the core component that limits the insertion depth of the pins 2. In order to ensure that the pins 2 can be smoothly inserted into the female electrical connector, the limiting part 3 is specially provided to ensure the length of the pins 2 remaining on the outside of the insulating structure 7. The annular limiting protrusion 9 and the first annular groove 10 are the core components of the improved connector pin fixing structure. When the limiting part 3 of the pins 2 abuts against the upper end surface of the insulating structure 7, the vertical position of the first annular groove 10 coincides with that of the annular limiting protrusion 9, and the annular limiting protrusion 9 is engaged in the first annular groove 10.

[0025] Specifically, during the installation of the connector pin 2, the insulating structure 7 is first installed into the socket 1. Then, the pin 2 is aligned with the corresponding socket on the insulating structure 7. Using a dedicated insertion device, the pin 2 is inserted into the socket, and the limiting part 3 of the pin 2 abuts against the upper end face of the insulating structure 7 to fix the pin 2. After the pin 2 is fixed, the annular limiting protrusion 9 on the insulating structure 7 also engages in the first annular groove 10, improving the stability of the pin 2. Through the above structural design, after the pin 2 is inserted into the insulating structure 7, the engagement of the annular limiting protrusion 9 and the first annular groove 10 restricts the pin 2 from coming out, significantly enhancing the pull-out resistance of the pin 2 and thus improving the stability of the electrical connector.

[0026] In detail, the insulating structure 7 is provided with multiple spaced-apart sockets, each socket having a corresponding pin 2. Multiple pins 2 are inserted into the corresponding sockets one by one. The cross-sectional shape and size of the annular limiting protrusion 9 match the cross-sectional shape and size of the first annular groove 10. Preferably, the cross-sections of both the annular limiting protrusion 9 and the first annular groove 10 are arc-shaped, and the curvature is less than π, which facilitates the annular limiting protrusion 9 to be engaged in the first annular groove 10.

[0027] See Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, it further includes: a vertical protrusion 6, which is disposed on the side of the insulating structure 7 facing the limiting part 3, and the vertical protrusion 6 is a ring-shaped protrusion; and a second annular groove 11, which is disposed on the limiting part 3 and is adapted to the vertical protrusion 6. After the pin 2 is inserted into the socket, the vertical protrusion 6 is also inserted into the second annular groove 11 to ensure the coaxiality of the pin 2 and the socket. If the vertical protrusion 6 cannot be inserted into the second annular groove 11, the pin 2 needs to be reinserted.

[0028] In this embodiment, the vertical protrusion 6 can also be provided on the limiting part 3, and the second annular groove 11 can be provided on the insulating structure 7, without specific limitations. The cross-sectional shape and size of the second annular groove 11 match the cross-sectional shape and size of the vertical protrusion 6. Preferably, the cross-section of the second annular groove 11 is arc-shaped.

[0029] See Figure 3 and Figure 4 As shown, in some embodiments, the method further includes: an annular gap, with an annular gap provided between the insulating structure 7 and the insert 1; and a filling layer 8, which fills the annular gap. Before the pins 2 are inserted, the annular gap is filled with the filling layer 8. At this time, due to the presence of the annular gap, the insulating structure 7 can undergo slight deformation, allowing the annular limiting protrusion 9 on the insulating structure 7 to also engage with the first annular groove 10. After all the pins 2 are inserted, the annular gap is filled with the filling layer 8 to enhance the stability of the insulating structure 7. The filling layer 8 is preferably epoxy resin. The annular gap effectively reduces the difficulty of inserting the pins 2.

[0030] In this embodiment, the insulating structure 7 includes a large diameter portion and a small diameter portion. The insert 1 is provided with a stepped hole adapted to the insulating structure 7. There is an annular gap between the large diameter portion and the insert 1, and the width of the annular gap is smaller than the radius difference between the large diameter portion and the small diameter portion. The annular limiting protrusions 9 on the insulating structure 7 are all provided in the insertion hole of the large diameter portion.

[0031] See Figure 3 and Figure 4 As shown, in some embodiments, a guide portion 12 is further included, with the guide portion 12 provided at the end of the insertion hole. The guide portion 12 facilitates the insertion of the pin 2 into the insertion hole, and the guide portion 12 is preferably an arc-shaped guide portion 12.

[0032] See Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, it further includes a rotation limiting part 4, which is disposed in the insert 1. When the insert 1 is inserted into the female connector, the rotation limiting part 4 is simultaneously inserted into the rotation limiting groove of the female connector to limit the rotation of the insert 1.

[0033] See Figure 1 As shown, in some embodiments, it further includes a connection structure 5, which connects to the pin 2. The connection structure 5 is used to connect structures such as cables to realize the connection between the connector and the circuit system. The connector also includes a limiting structure for restricting the position of the cable or other essential structures. Since the above structures are not the inventive points to be protected in this application and are mature prior art, this application does not impose too many restrictions on their specific structures.

[0034] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A connector pin fixing structure with improved structure, characterized by, The utility model relates to a plug-in sleeve (1) and an insulating structure (7) provided in the plug-in sleeve (1), and a plug-in pin (2) provided in the insulating structure (7) and inserted into the insulating structure (7), a limiting part (3) provided in the plug-in pin (2) and abutting against the insulating structure (7), a ring-shaped limiting protrusion (9) provided in the insulating structure (7) and located in the insertion hole, a first ring-shaped groove (10) provided in the plug-in pin (2) and matched with the ring-shaped limiting protrusion (9). The utility model further includes a vertical protrusion (6) provided in the insulating structure (7) and located on the side of the limiting part (3), and a second ring-shaped groove (11) provided in the limiting part (3) and matched with the vertical protrusion (6). The utility model further includes a ring-shaped gap between the insulating structure (7) and the plug-in sleeve (1), and a filling layer (8) filled in the ring-shaped gap. The utility model further includes a guide part (12) provided at the end of the insertion hole. The utility model further includes a rotation limiting part (4) provided in the plug-in sleeve (1). The utility model further includes a connecting structure (5) connected with the plug-in pin (2). ​ 2. The structurally improved connector pin retention structure of claim 1, wherein, ​ ​ ​ 3. The structurally improved connector pin retention structure of claim 1, wherein ​ ​ ​ 4. The structurally improved connector pin retention structure of claim 1, wherein ​ ​ 5. The structurally improved connector pin retention structure of claim 1, wherein, ​ ​ 6. The structurally improved connector pin retention structure of claim 1, wherein, ​ ​

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