Connector structure

Abstract

A connector structure comprises an insulating body and pins, the insulating body comprises a base and a hollow cylinder which are connected, the hollow cylinder is provided with a penetrating groove and a limiting structure, the limiting structure comprises a pair of limiting planes and a pair of limiting concave cambered surfaces, the limiting planes are oppositely arranged, and the limiting concave cambered surfaces are oppositely arranged and located on the two sides of the limiting planes. The contact pin is detachably inserted into the insulating body and is provided with a positioning section, the positioning section is provided with a pair of positioning planes and a pair of positioning convex cambered surfaces, the positioning planes are oppositely arranged, and the positioning convex cambered surfaces are oppositely arranged and are positioned on two sides of each positioning plane; when the pin is not inserted into the insulating body, the positioning distance between the positioning convex arc surfaces is larger than the limiting distance between the limiting concave arc surfaces. When the pin is inserted into the insulating body, the positioning section is clamped and fixed in the limiting structure, each positioning plane abuts against each limiting plane, and each positioning convex cambered surface abuts against each limiting concave cambered surface. Therefore, the pin is prevented from shaking or separating, and the insertion of the pin is prevented from being affected by chip accumulation.

Description

Technical Field

[0001] The present invention relates to the field of connectors, and more particularly to a pin-type connector structure. Background Art

[0002] Connectors are widely used in various industrial, electronic and technological fields. They mainly include a male connector and a female connector that can be inserted into each other. When the two are inserted, the circuits that are electrically connected to each other can form a path to allow current or signals to flow and be transmitted. There are various types of connectors, and different forms of connectors can be selected according to different requirements. Among them, for a pin-type connector, metal conductors are inserted and fixed in the interior of an insulating housing in the form of pins. One end of the pin is thus accommodated in a receiving groove of the insulating housing to be in electrical connection with a corresponding connector, and the other end of the pin is exposed outside the insulating housing to facilitate connection with a power cable, a cable or a metal conductor to form an electrical connection. Therefore, after the pin is inserted into the insulating housing, not only must there be an anti-disengagement structure to prevent the pin from disengaging from the insulating housing and causing connection failure, but it also needs to be kept stable so that it will not easily wobble to ensure the stability of signal transmission.

[0003] However, in existing pin-type connectors, the pins are generally directly inserted into the insulating housing. Therefore, during actual use, the pins are still prone to wobbling, resulting in poor contact or disengagement. In addition, once the wire, cable or metal conductor connected to the exposed end of the pin outside the insulating housing is pulled or impacted after the pin is inserted into the insulating housing, it is easy to cause the pin to disengage from the insulating housing or cause a fracture inside the insulating housing, thereby resulting in poor contact and leakage. Moreover, when the pin is inserted into the insulating housing, the insulating housing is relatively soft in hardness, and debris will be generated between the two, so that the insertion of the pin will be affected due to the accumulation and jamming of the debris during the insertion process. Summary of the Invention

[0004] The main object of the present invention is to prevent the pin from wobbling and disengaging and failing when inserted into the insulating body, and at the same time prevent the debris generated by friction of the insulating body from accumulating and jamming to affect the insertion of the pin.

[0005] To achieve the above object, the present invention provides a connector structure, including an insulating body and a pin. The insulating body includes a base and a hollow cylinder. The hollow cylinder is connected to the base. The hollow cylinder has a through groove and a limiting structure. The through groove vertically penetrates through the hollow cylinder and the base. The limiting structure is located at one end of the through groove. The limiting structure includes a pair of limiting planes and a pair of limiting concave arc surfaces. Each pair of limiting planes are parallel to each other and are relatively arranged. Each pair of limiting concave arc surfaces are relatively arranged and are respectively connected to the opposite sides of each limiting plane. The pin is detachably inserted into the insulating body vertically. The pin includes an insertion portion and an exposed portion. The insertion portion has a positioning section. The positioning section is connected to the exposed portion. The positioning section has a pair of positioning planes and a pair of positioning convex arc surfaces. Each pair of positioning planes are parallel to each other and are relatively arranged. Each pair of positioning convex arc surfaces are relatively arranged and are respectively connected to the opposite sides of each positioning plane. When the pin is not inserted into the insulating body, there is a limiting distance between each pair of limiting concave arc surfaces, and there is a positioning distance between each pair of positioning convex arc surfaces. The positioning distance is greater than the limiting distance. When the pin is inserted into the insulating body, the insertion portion is inserted into the through groove, and the positioning section is clamped in the limiting structure. Each positioning plane respectively abuts against each limiting plane, and each positioning convex arc surface respectively abuts against each limiting concave arc surface.

[0006] In an embodiment of the present invention, the radian of each limiting concave arc surface is less than the radian of each positioning convex arc surface.

[0007] In an embodiment of the present invention, one end of the hollow cylinder has an avoidance groove. The avoidance groove surrounds the limiting structure so that a wall is formed between the avoidance groove and the limiting structure on the hollow cylinder. When the pin is inserted into the insulating body, the positioning section abuts against the limiting structure, causing the wall to elastically deform and collapse towards the avoidance groove.

[0008] In an embodiment of the present invention, the insertion portion has a clamping section and a plugging section. The clamping section is connected between the positioning section and the plugging section.

[0009] In an embodiment of the present invention, the limiting structure further includes a plurality of elastic hooks. The clamping section has an annular groove. When the pin is inserted into the insulating body, each elastic hook is buckled into the annular groove.

[0010] In an embodiment of the present invention, each elastic hook includes an elastic arm and a hook portion. Each elastic arm extends from the inner wall of the hollow cylinder. Each hook portion is respectively connected to the end of each elastic arm. When the pin is inserted into the insulating body, each hook portion vertically abuts against the side of the annular groove away from the positioning section.

[0011] In an embodiment of the present invention, the annular groove has a guiding inclined surface. The guiding inclined surface is located on the side of the annular groove adjacent to the positioning section.

[0012] In an embodiment of the present invention, a step surface is formed between the positioning section and the clamping section. The limiting structure further includes a stop surface perpendicular to each limiting plane. When the pin is inserted into the insulating body, the step surface abuts against the stop surface.

[0013] In an embodiment of the present invention, the outer diameter of the positioning section is larger than that of the clamping section.

[0014] In an embodiment of the present invention, each limiting plane has a chip removal groove extending vertically.

[0015] In the connector structure of the present invention, when the pin is not inserted into the insulating body, the positioning distance between the positioning convex arc surfaces is greater than the limiting distance between the limiting concave arc surfaces. When the pin is inserted into the insulating body, the harder positioning section of the pin abuts against the limiting structure, causing the softer hollow cylinder to deform, so that the positioning section of the pin can be tightly clamped in the limiting structure of the insulating body, thereby preventing the pin from shaking or disengaging and causing failure. At the same time, it can also prevent the insulating body from being affected by the accumulation of debris generated by friction and affecting the insertion of the pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional exploded view of the present invention.

[0017] Figure 2 is a cross-sectional top view of the positioning section of the pin of the present invention.

[0018] Figure 3 is a cross-sectional top view of the insulating body of the present invention.

[0019] Figure 4 is a three-dimensional external view of the present invention.

[0020] Figure 5 is a cross-sectional side view of the present invention.

[0021] Figure 6 is a cross-sectional top view of the present invention.

[0022] Figure 7 is Figure 6 a partial enlarged view of.

[0023] In the figure: 10: Insulating body; 11: Base; 12: Hollow cylinder; 13: Through groove; 14: Limiting structure; 141: Limiting plane; 1411: Chip removal groove; 142: Limiting concave arc surface; 143: Elastic hook; 1431: Elastic arm; 1432: Hook part; 144: Stopping surface; 15: Avoidance groove; 16: Enclosure wall; 20: Pin; 21: Insertion part; 211: Positioning section; 2111: Positioning plane; 2112: Positioning convex arc surface; 212: Clamping section; 2121: Annular groove; 2122: Guiding inclined surface; 213: Insertion section; 214: Step surface; 22: Exposed part; d1: Limiting spacing; d2: Positioning spacing. Detailed implementation manner

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "front side, rear side, left side, right side, front end, rear end, end, longitudinal direction, transverse direction, vertical direction, top, bottom" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limiting condition of the present invention.

[0025] As used herein and not otherwise defined, terms such as "substantially" and "about" are used to describe and account for small variations. When combined with an event or situation, the term can include the exact moment when the event or situation occurs, as well as a point close to an approximation of the event or situation. For example, when combined with a numerical value, the term can include a variation range less than or equal to ±5% of the numerical value, such as less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%.

[0026] The following further illustrates the present invention in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the embodiments cited do not limit the present invention.

[0027] The present invention provides a connector structure, especially a pin-type connector structure. Please refer to Figures 1 to 4 As shown, the connector structure of the present invention includes an insulating body 10 and a pin 20.

[0028] The insulating body 10 is made of an insulating material such as plastic. The insulating body 10 includes a base 11 and a hollow cylinder 12. In this embodiment, the base 11 is a rectangular plate, but the present invention is not limited thereto, and the base 11 may also be a plate or block of other shapes. The hollow cylinder 12 is connected to the base 11. In this embodiment, the hollow cylinder 12 is connected to opposite sides of the base 11, but in other embodiments, it may also be provided only on one side of the base 11. The hollow cylinder 12 has a through slot 13 and a limiting structure 14. As Figure 1 shown, the through slot 13 vertically penetrates the hollow cylinder 12 and the base 11 along Figure 1 so that the hollow cylinder 12 is in a hollow shape. The limiting structure 14 is located at one end of the through slot 13, and the limiting structure 14 extends from the inner wall of the hollow cylinder 12 to achieve the limiting effect. The limiting structure 14 mainly includes a pair of limiting planes 141 and a pair of limiting concave arcs 142. Each pair of limiting planes 141 are parallel to each other and relatively arranged. Each pair of limiting concave arcs 142 are relatively arranged and are respectively connected to opposite sides of each pair of limiting planes 141, so that each pair of limiting concave arcs 142 and each pair of limiting planes 141 together generally form an elliptical shape.

[0029] The pin 20 is made of a conductive metal such as copper. The pin 20 is detachably inserted vertically corresponding to the insulating body 10. The pin 20 includes an insertion portion 21 and an exposed portion 22. The insertion portion 21 has a positioning section 211, a clamping section 212, and a plugging section 213. The positioning section 211 is connected to the exposed portion 22, and the clamping section 212 is connected between the positioning section 211 and the plugging section 213. The exposed portion 22 can be deformed by an external force or fixed to the exposed portion 22 with a fastening element such as a bolt to fix a wire, cable, or metal conductor to form an electrical connection. The positioning section 211 and the clamping section 212 are used to cooperate with the limiting structure 14 of the insulating body 10 for fixation. The plugging section 213 is used to contact a mating connector (not shown in the figure) to form an electrical connection. Specifically, the side edge of the positioning section 211 has a pair of positioning planes 2111 and a pair of positioning convex arcs 2112. Each pair of positioning planes 2111 are parallel to each other and relatively arranged. Each pair of positioning convex arcs 2112 are relatively arranged and are respectively connected to opposite sides of each pair of positioning planes 2111, so that each pair of positioning convex arcs 2112 and each pair of positioning planes 2111 together generally form an elliptical shape corresponding to the limiting structure 14.

[0030] For further illustration, please refer to Figure 2 and Figure 3 shown, there is a limiting distance d1 between each pair of limiting concave arcs 142, and there is a positioning distance d2 between each pair of positioning convex arcs 2112. When the pin 20 is not inserted into the insulating body 10, the positioning distance d2 is greater than the limiting distance d1. Thus, please refer to Figures 5 to 7As shown, when the pin 20 is inserted into the insulating body 10, the insertion portion 21 is inserted into the through groove 13, and the exposed portion 22 is exposed outside the insulating body 10. The positioning section 211 is tightly clamped in the limiting structure 14, so that the pin 20 is not easily detached from the insulating body 10 or shaken, resulting in the connection failure with the docking connector. More specifically, since the hardness of the pin 20 is higher than that of the insulating body 10, when the pin 20 is inserted into the insulating body 10, the hollow cylinder 12 will be deformed, so that the positioning planes 2111 respectively abut against the limiting planes 141, and the positioning convex arc surfaces 2112 respectively abut against the limiting concave arc surfaces 142, so as to tightly clamp the positioning section 211 in the limiting structure 14.

[0031] Refer back to Figure 6 and Figure 7 As shown, the radian of each limiting concave arc surface 142 is smaller than that of each positioning convex arc surface 2112. Thereby, when the insertion portion 21 is inserted into the through groove 13, the positioning convex arc surfaces 2112 will not completely interfere with the limiting concave arc surfaces 142 to cause excessive obstruction, and still can make the most protruding end parts of the positioning convex arc surfaces 2112 respectively abut against the most recessed parts of the limiting concave arc surfaces 142, so that the limiting structure 14 is deformed and clamped and fixed. It is worth mentioning that since the hardness of the insulating body 10 is softer than that of the pin 20, when the pin 20 is inserted into the insulating body 10, the positioning convex arc surfaces 2112 abut against and rub the limiting concave arc surfaces 142, and the debris generated by the insulating body 10 can be discharged from the four corners of the positioning section 211 respectively, so as to avoid the influence of debris accumulation on the insertion of the pin 20 during the process of inserting the pin 20 into the insulating body 10.

[0032] In addition, the distance between the limiting planes 141 is approximately equal to the distance between the positioning planes 2111, that is, the present invention does not particularly limit whether the distance between the limiting planes 141 is equal to the distance between the positioning planes 2111, as long as it is within a certain range of variation, so as to effectively reduce the molding cost of the insulating body 10 and the processing cost of the pin 20. Also, refer back to Figure 1 , Figure 6 and Figure 7 As shown, each limiting plane 141 has a chip discharging groove 1411. Each chip discharging groove 1411 extends vertically on each limiting plane 141. Thereby, when the distance between the limiting planes 141 is greater than or equal to the distance between the positioning planes 2111, the positioning planes 2111 and the limiting planes 141 abut against and rub each other, and the debris generated by the insulating body 10 can be discharged through the chip discharging grooves 1411, so as to avoid the influence of debris accumulation on the insertion of the pin 20.

[0033] Refer back to Figure 1 , Figure 4 and Figure 5As shown, one end of the hollow cylinder 12 has an avoidance groove 15. Specifically, the avoidance groove 15 surrounds the outside of the limiting structure 14, so that a wall 16 is formed between the avoidance groove 15 and the limiting structure 14 of the hollow cylinder 12. That is, the wall 16 is a hollow cylindrical structure to limit the positioning section 211 of the pin 20 through the limiting structure 14. Thus, when the pin 20 is inserted into the insulating body 10, since the hardness of the insulating body 10 is lower than that of the pin 20, the positioning section 211 of the pin 20 abuts against the limiting structure 14 of the insulating body 10, which will cause the wall 16 to elastically deform and slightly collapse towards the avoidance groove 15, so that the positioning section 211 of the pin 20 is clamped and fixed in the limiting structure 14 of the insulating body 10.

[0034] Refer back to Figure 1 , Figure 3 and Figure 5 As shown, the limiting structure 14 further includes a plurality of elastic hooks 143, and an annular groove 2121 is formed on the outer edge of the clamping section 212. When the pin 20 is inserted into the insulating body 10, each elastic hook 143 is buckled to the annular groove 2121, thereby locking the pin 20 to the insulating body 10. Specifically, each elastic hook 143 includes an elastic arm 1431 and a hook portion 1432. Each elastic arm 1431 is generally in an inverted L shape, and each elastic arm 1431 extends vertically from the inner wall of the hollow cylinder 12. Each hook portion 1432 is respectively connected to the end of each elastic arm 1431, and each hook portion 1432 is arranged towards the central axis of the through groove 13. Thus, when the pin 20 is inserted into the insulating body 10, each hook portion 1432 abuts against the side of the annular groove 2121 away from the positioning section 211 in the vertical direction. Also, the annular groove 2121 has a guiding inclined surface 2122. The guiding inclined surface 2122 is located on the side of the annular groove 2121 adjacent to the positioning section 211, so that when the pin 20 is inserted into the insulating body 10, the guiding inclined surface 2122 can be used as a guide to enable the hook portion 1432 of the elastic hook 143 to smoothly slide into the annular groove 2121 without jamming.

[0035] Further explanation, the outer diameter of the positioning section 211 is larger than the outer diameter of the clamping section 212, so that a step surface 214 is formed between the positioning section 211 and the clamping section 212. The limiting structure 14 further includes at least one stop surface 144. In this embodiment, the number of stop surfaces 144 is two and they are respectively arranged at the bottoms of the respective limiting concave arc surfaces 142, but the number of stop surfaces 144 can also be one or more than three. The stop surface 144 is perpendicular to each limiting plane 141. Thus, when the pin 20 is inserted into the insulating body 10 in the vertical direction, the step surface 214 of the pin 20 will abut against the stop surface 144 of the limiting structure 14 to limit the insertion depth of the pin 20.

[0036] In the connector structure of the present invention, when the pin 20 is not inserted into the insulating body 10, the positioning distance d2 between the positioning convex arc surfaces 2112 is greater than the limiting distance d1 between the limiting concave arc surfaces 142. When the pin 20 is inserted into the insulating body 10, the positioning section 211 of the pin 20 with higher hardness abuts against the limiting structure 14, causing the hollow cylinder 12 with lower hardness to deform. As a result, the positioning section 211 of the pin 20 can be tightly fitted and fixed within the limiting structure 14 of the insulating body 10, thereby preventing the pin 20 from shaking or detaching and causing failure. At the same time, it can avoid the accumulation of debris generated by friction on the insulating body 10, which may affect the insertion of the pin 20.

[0037] The above-described embodiments are merely preferred embodiments cited to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art in the technical field of the present invention based on the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A connector structure, characterized in that, Comprising: An insulating body (10), including a base (11) and a hollow cylinder (12), the hollow cylinder (12) being connected to the base (11), the hollow cylinder (12) having a through slot (13) and a limiting structure (14), the through slot (13) extending vertically through the hollow cylinder (12) and the base (11), the limiting structure (14) being located at one end of the through slot (13), the limiting structure (14) including a pair of limiting planes (141) and a pair of limiting concave arc surfaces (142), each of the limiting planes (141) being parallel to and oppositely arranged with respect to each other, each of the limiting concave arc surfaces (142) being oppositely arranged and respectively connected to opposite sides of each of the limiting planes (141); and A pin (20), detachably inserted into the insulating body (10) vertically, the pin (20) including an insertion portion (21) and an exposed portion (22), the insertion portion (21) having a positioning section (211), the positioning section (211) being connected to the exposed portion (22), the positioning section (211) having a pair of positioning planes (2111) and a pair of positioning convex arc surfaces (2112), each of the positioning planes (2111) being parallel to and oppositely arranged with respect to each other, each of the positioning convex arc surfaces (2112) being oppositely arranged and respectively connected to opposite sides of each of the positioning planes (2111); Wherein when the pin (20) is not inserted into the insulating body (10), there is a limiting distance (d1) between each of the limiting concave arc surfaces (142), and there is a positioning distance (d2) between each of the positioning convex arc surfaces (2112), and the positioning distance (d2) is greater than the limiting distance (d1); Wherein when the pin (20) is inserted into the insulating body (10), the insertion portion (21) is inserted into the through slot (13), the positioning section (211) is clamped in the limiting structure (14), each of the positioning planes (2111) respectively abuts against each of the limiting planes (141), and each of the positioning convex arc surfaces (2112) respectively abuts against each of the limiting concave arc surfaces (142).

2. The connector structure according to claim 1, wherein The radian of each of the limiting concave arc surfaces (142) is less than the radian of each of the positioning convex arc surfaces (2112).

3. The connector structure according to claim 1, characterized in that One end of the hollow cylinder (12) has an avoidance slot (15), the avoidance slot (15) surrounding the limiting structure (14) such that a wall (16) is formed between the avoidance slot (15) and the limiting structure (14) in the hollow cylinder (12), and when the pin (20) is inserted into the insulating body (10), the positioning section (211) abuts against the limiting structure (14) causing the wall (16) to elastically deform and collapse towards the avoidance slot (15).

4. The connector structure according to claim 1, characterized in that, The insertion portion (21) has a clamping section (212) and a plugging section (213), the clamping section (212) being connected between the positioning section (211) and the plugging section (213).

5. The connector structure according to claim 4, characterized in that, The limiting structure (14) further includes a plurality of elastic hooks (143), the clamping section (212) having an annular groove (2121), and when the pin (20) is inserted into the insulating body (10), each of the elastic hooks (143) is buckled into the annular groove (2121).

6. The connector structure according to claim 5, wherein, Each of the elastic hooks (143) includes an elastic arm (1431) and a hook portion (1432). Each of the elastic arms (1431) extends from the inner wall of the hollow cylinder (12), and each of the hook portions (1432) is respectively connected to the end of each of the elastic arms (1431). When the pin (20) is inserted into the insulating body (10), each of the hook portions (1432) abuts against the side of the annular groove (2121) away from the positioning section (211) along the vertical direction.

7. The connector structure according to claim 5, wherein, The annular groove (2121) has a guiding inclined surface (2122), and the guiding inclined surface (2122) is located on the side of the annular groove (2121) adjacent to the positioning section (211).

8. The connector structure according to claim 4, wherein, A step surface (214) is formed between the positioning section (211) and the clamping section (212). The limiting structure (14) further includes a stop surface (144), and the stop surface (144) is perpendicular to each of the limiting planes (141). When the pin (20) is inserted into the insulating body (10), the step surface (214) abuts against the stop surface (144).

9. The connector structure according to claim 8, wherein, The outer diameter of the positioning section (211) is larger than the outer diameter of the clamping section (212).

10. The connector structure according to claim 1, characterized in that, Each of the limiting planes (141) has a chip evacuation groove (1411), and each of the chip evacuation grooves (1411) extends along the vertical direction.

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