CN108879149B

CN108879149B - Electric connector easy to assemble

Info

Publication number: CN108879149B
Application number: CN201810898002.5A
Authority: CN
Inventors: 贺晓涛; 邱雪梅
Original assignee: Sichuan Huafeng Technology Co Ltd
Current assignee: Sichuan Huafeng Technology Co Ltd
Priority date: 2018-08-08
Filing date: 2018-08-08
Publication date: 2023-10-10
Anticipated expiration: 2038-08-08
Also published as: CN108879149A

Abstract

The application discloses an electric connector easy to assemble, which comprises a base and a pin assembled on the base, wherein the pin comprises a long pin and a short pin, the long pin is in an inverted L shape and is positioned below an inverted L-shaped transverse part in the long pin, and a abdication groove is arranged on the L-shaped transverse part of the long pin along the vertical direction. According to the application, the body part of the long contact pin is provided with the abdication groove, the long contact pin and the short contact pin can be clamped by the mechanical arm during preassembling through the through hole formed by the abdication groove, and after preassembling in place, the contact pin is assembled in place in a crimping manner, so that the aim of assembling the long contact pin and the short contact pin at the same time is finally fulfilled.

Description

Electric connector easy to assemble

Technical Field

The application relates to the technical field of electric connectors, in particular to an electric connector easy to assemble.

Background

The traditional power connector with two length pins is assembled by separating the two length pins, which is time-consuming and labor-consuming, and is easy to assemble in place, and the two pins are easy to have different retaining forces after being assembled into the base due to different crimping forces when being crimped, so that the pins are loose and are unreliable in joint.

Disclosure of Invention

The application aims to provide an electric connector easy to assemble, which solves the problems that the traditional power connector with two length pins can only be assembled separately when the pins are assembled, and is easy to consume time and labor and generate incomplete assembly.

In order to solve the technical problems, the application adopts the following technical scheme:

an electric connector easy to assemble comprises a base and a contact pin assembled on the base, wherein the contact pin comprises a long contact pin and a short contact pin, the long contact pin is in an inverted L shape and is positioned below an inverted L-shaped transverse part in the long contact pin, and a yielding groove is formed in the L-shaped transverse part of the long contact pin along the vertical direction.

Preferably, the pins are provided with more than two groups and each group of pins comprises two oppositely arranged long pins and two oppositely arranged short pins.

Preferably, in the two oppositely arranged long pins, concave surfaces of the relief grooves on the long pins are oppositely arranged.

Preferably, the long pin includes a long pin body portion having an inverted L shape, a long pin fitting portion mounted on a distal end of an inverted L-shaped cross portion of the long pin body portion, and a long pin contact portion connected to a lower end of an inverted L-shaped vertical portion of the long pin body portion.

Preferably, the long needle contacting portion is a cantilever, and the cantilever includes a vertical section and a V-shaped bent section connected to a lower end of the vertical section and integrally formed with the vertical section.

Preferably, when the two long pins are oppositely arranged, the bending directions of the V-shaped bending sections of the two cantilevers in the two long pins are opposite and are flush.

Preferably, when the two long pins are arranged oppositely, the bending directions of the V-shaped bending sections of the two cantilevers in the two long pins are opposite, and the cantilever is long and short, and the lower end of the short cantilever can extend into the V-shaped groove of the V-shaped bending section of the long cantilever.

Preferably, the side of the vertical section of the cantilever is provided with a strip-shaped opening.

Preferably, the short pin includes a short pin body portion, a short pin fitting portion, and a short pin contact portion, the short pin fitting portion is mounted on one side of the short pin body portion, and the short pin contact portion is mounted on a lower end of the short pin body portion and is identical to the long pin contact portion in structure.

Preferably, the long pin fitting portion is aligned with the short pin fitting portion when the short pin is placed under the long pin.

Compared with the prior art, the application has the beneficial effects that:

according to the power connector, the abdication groove is formed in the body part of the long contact pin, the long contact pin and the short contact pin can be clamped by the mechanical arm during preassembly through the through hole formed by the abdication groove, after preassembly is in place, the contact pin is assembled in place in a crimping mode, and the crimping is performed simultaneously, namely the long contact pin is crimped on one side of the crimping device and the short contact pin is crimped through the abdication groove; finally, the purpose of assembling the long and short pins at the same time is achieved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present application.

FIG. 2 is a schematic diagram of an exploded structure of the present application.

Fig. 3 is a front view of the pin of the present application.

Fig. 4 is a left side view of the pin of the present application.

Fig. 5 is a top view of the pin of the present application.

Fig. 6 is a schematic view of an assembly structure of the present application.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

Referring to fig. 1 to 6, for one embodiment of the present application, an easy-to-assemble electrical connector includes a base 1 and pins assembled on the base 1, the pins including a long pin 2 and a short pin 3, the long pin 2 being in an inverted "L" shape and the short pin 3 being located under an inverted "L" shaped cross section in the long pin 2, the long pin 2"L" shaped cross section being provided with a relief groove 24 in a vertical direction. The relief groove 24 here is an arcuate groove provided along the side of the long pin.

According to the embodiment, the abdication groove is formed in the body part of the long contact pin, the long contact pin can be clamped by the mechanical arm during preassembling, the short contact pin can be clamped by the mechanical arm through the through hole formed by the abdication groove, after preassembling in place, the contact pin is assembled in place in a crimping mode, and the crimping is performed simultaneously, namely, the long contact pin is crimped on one side of the crimping device, and the short contact pin is crimped through the abdication groove.

The long contact PIN and the short contact PIN respectively belong to unused PIN positions, and in terms of material utilization, the material utilization rate of the layout mode of the contact PIN is highest, but the prior structure assembly is troublesome because of no bending and abdication, and the long contact PIN and the short contact PIN cannot be assembled at the same time. The assembly mode of similar products before is as follows: the long needle and the short needle are assembled separately, the long needle is assembled from the upper surface, and the short needle is assembled from the bottom. In this embodiment, a relief groove is added on the surface of the long pin to form a staggered press-fit end face, and then a step-type press-fit tool 4 is manufactured to press-fit the long pin press-fit end face 28 and the short pin press-fit end face 34 in fig. 3, respectively, and the press-fit schematic diagram is shown in fig. 6. And finally, synchronous pressing-in of the long and short pins is realized.

Further, for another embodiment of the present application, the pins are provided with more than two groups and each group of the pins includes two oppositely disposed long pins 2 and two oppositely disposed short pins 3. In this embodiment, the organization of the pins is defined, so that current conduction is facilitated.

Further, for another embodiment of the present application, in two oppositely disposed long pins 2, the concave surfaces of the relief grooves 24 on the long pins 2 are oppositely disposed. In this embodiment, the concave surfaces of the abdication grooves in the two opposite long pins are oppositely arranged, so that a hole-shaped channel is formed by the two opposite abdication grooves during assembly, a press-fit tool is convenient to put in, and press-fit is more convenient.

Further, according to another embodiment of the present application, the long pin 2 includes a long pin body 21, a long pin assembling portion 22, and a long pin contact portion 23, wherein the long pin body 21 is in an inverted L shape, the long pin assembling portion 22 is mounted at an end of an inverted L-shaped cross portion of the long pin body 21, and the long pin contact portion 23 is connected to a lower end of an inverted L-shaped vertical portion of the long pin body 21; the relief groove 24 in the above-described embodiment is thus provided on the inverted "L" shaped cross section of the spike body portion 21. In this embodiment, the pins are divided into a fitting portion, a contact portion, and a body portion. The assembly part is used for connecting the printed circuit board; the contact part is connected with the other pair of inserting ends and is used for realizing the conduction of current; the body portion is used for connecting the assembly portion and the contact portion. The long contact PIN and the short contact PIN respectively belong to unused PIN positions, and in terms of material utilization, the arrangement in the mode can enable the utilization rate of contact PIN materials to be highest, and meanwhile, the space is more beneficial to saving.

Further, for another embodiment of the present application, the long needle contacting portion 23 is a cantilever, and the cantilever includes a vertical section 25 and a V-shaped bent section 26, and the V-shaped bent section 26 is connected to a lower end of the vertical section 25 and integrally formed with the vertical section 25. In this embodiment, the contact portion of the long pin and the short pin in the contact pin is set to be a cantilever structure, and is divided into a straight line section and a V-shaped curved section, when the contact pin is inserted into another jack structure, the straight line section in front of the circular arc is guided first, when the contact position reaches the size of the opposite jack, the cantilever is stressed to be elastically deformed and drawn close to the middle, and at this moment, the contact portion of the cantilever can apply a reaction force to the contact portion of the jack, and the vector of the reaction force is converted into a positive pressure of the cantilever to the opposite jack, and under the conversion of friction coefficient, namely, the plugging force of the connector. The highest point of the final arc is the contact point after insertion, so that reliable transmission of the product current is realized.

Further, for another embodiment of the present application, when two long pins 2 are disposed opposite to each other, the bending directions of the two cantilevered "V" -shaped bending sections 26 in the two long pins 2 are opposite to each other and are positioned flush. The cantilevers in the oppositely arranged pins in the embodiment are also opposite, so that the through-flow sectional area is larger and the current carrying capacity is stronger when the pins are inserted into the jacks for access. Meanwhile, the contact part is simpler in structure, better in molding process, stable in structure and higher in reliability.

Further, for another embodiment of the present application, when two long pins 2 are disposed opposite to each other, the bending directions of the V-shaped bending sections 26 of the two cantilevers in the two long pins 2 are opposite to each other, and the cantilever thereof is long and short, and the lower end of the short cantilever can extend into the V-shaped groove of the V-shaped bending section 26 of the long cantilever. In this embodiment, the lengths of the pins that are relatively disposed are not consistent, so that when the pins are inserted, the V-shaped bending section of one cantilever can be just inserted into the V-shaped groove of the V-shaped bending section of the other cantilever, which can save more space and make the structure more stable.

Further for another embodiment of the application the side of the vertical section 25 of the cantilever is provided with a strip-shaped opening 27. In this embodiment, the strip-shaped opening is provided on the side of the vertical section of the cantilever, and the current-carrying sectional area is partially reduced, but the space and the material can be saved more, so that the contact of the connector is more stable.

Further, according to another embodiment of the present application, the short pin 3 includes a short pin body 31, a short pin fitting 32, and a short pin contact 33, the short pin fitting 32 is installed at one side of the short pin body 31, and the short pin contact 33 is installed at the lower end of the short pin body 31 and corresponds to the long pin contact 23. In this embodiment, the structure of the short pin is limited, and the purpose is that the short pin and the long pin can cooperate with each other to complete the corresponding functions, and meanwhile, the pin joint can be more reliable.

Further, for another embodiment of the present application, when the short pin 3 is placed under the long pin 2, the long pin fitting portion 22 is aligned with the short pin fitting portion 32. In this embodiment, the fitting portion of the long pin or the short pin is used for connecting to the printed circuit board, and therefore the fitting portion of the long pin and the fitting portion of the short pin are required to be aligned in length.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application as broadly described. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the application.

Although the application has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure. More specifically, various variations and modifications may be made to the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, drawings and claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will be apparent to those skilled in the art.

Claims

1. An easy-to-assemble electrical connector comprising a base (1) and pins assembled on the base (1), characterized in that: the contact pin comprises a long contact pin (2) and a short contact pin (3), the long contact pin (2) is in an inverted L shape, the short contact pin (3) is located below an inverted L-shaped transverse part in the long contact pin (2), a yielding groove (24) is formed in the L-shaped transverse part of the long contact pin (2) along the vertical direction, the yielding groove (24) is an arc-shaped groove formed along the side face of the long contact pin, and a mechanical arm can clamp the long contact pin and a through hole formed by passing through the yielding groove to clamp the short contact pin during preassembly.

2. The easy-to-assemble electrical connector of claim 1, wherein: the pins are provided with more than two groups, and each group of pins comprises two oppositely arranged long pins (2) and two oppositely arranged short pins (3).

3. The easy-to-assemble electrical connector of claim 2, wherein: in two oppositely arranged long pins (2), concave surfaces of the abdication grooves (24) on the long pins (2) are oppositely arranged.

4. An easy-to-assemble electrical connector according to any one of claims 1-3, wherein: the long contact pin (2) comprises a long pin body part (21), a long pin assembly part (22) and a long pin contact part (23), wherein the long pin body part (21) is in an inverted L shape, the long pin assembly part (22) is arranged at the tail end of an inverted L-shaped transverse part of the long pin body part (21), and the long pin contact part (23) is connected with the lower end of an inverted L-shaped vertical part of the long pin body part (21).

5. The easy-to-assemble electrical connector of claim 4, wherein: the long needle contact part (23) is a cantilever, the cantilever comprises a vertical section (25) and a V-shaped bending section (26), and the V-shaped bending section (26) is connected to the lower end part of the vertical section (25) and is integrally formed with the vertical section (25).

6. The easy-to-assemble electrical connector of claim 5, wherein: when the two long pins (2) are oppositely arranged, the bending directions of the V-shaped bending sections (26) of the two cantilevers in the two long pins (2) are opposite and are flush.

7. The easy-to-assemble electrical connector of claim 5, wherein: when the two long pins (2) are oppositely arranged, the bending directions of the V-shaped bending sections (26) of the two cantilevers in the two long pins (2) are opposite, the cantilevers are long and short, and the lower ends of the short cantilevers can extend into the V-shaped grooves of the V-shaped bending sections (26) of the long cantilevers.

8. The easy-to-assemble electrical connector of claim 7, wherein: the side of the vertical section (25) of the cantilever is provided with a strip-shaped opening (27).

9. The easy-to-assemble electrical connector of claim 4, wherein: the short contact pin (3) comprises a short pin body part (31), a short pin assembling part (32) and a short pin contact part (33), wherein the short pin assembling part (32) is arranged on one side of the short pin body part (31), and the short pin contact part (33) is arranged at the lower end of the short pin body part (31) and is consistent with the structure of the long pin contact part (23).

10. The easy-to-assemble electrical connector of claim 9, wherein: the long needle fitting portion (22) is aligned with the short needle fitting portion (32) when the short needle (3) is placed under the long needle (2).