CN218275226U

CN218275226U - Plug-in electric connector

Info

Publication number: CN218275226U
Application number: CN202221696512.2U
Authority: CN
Inventors: 徐常辉; 刘忠明
Original assignee: Zhejiang Zhizhuo Electronics Co ltd
Current assignee: Zhejiang Zhizhuo Electronics Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-01-10
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses an opposite-plugging electric connector, which comprises a male end connector and a female end connector, wherein the male end connector comprises a male end seat and a male terminal, the upper end of the male end seat is provided with an upward convex plugging part, the female end connector comprises a female end seat and a female terminal fixed on the female end seat by injection molding, one end of the female terminal is of a hollow structure and is embedded in a plugging platform to be used as a plug sleeve part plugged with a plug part; a step surface is formed at the bottom of the outer side of the inserting part on the male end seat, a sealing ring which is abutted against the step surface is sleeved at the bottom of the outer side of the inserting part, the sealing ring is provided with a conical ring part and an annular convex part which extends outwards from the bottom of the conical ring part, an annular convex rib which is inwards convex is formed at the bottom of the inner bottom of the sleeve part, when the inserting part and the sleeve part are inserted, the bottom edge of the sleeve part is pressed on the annular convex part, and the annular convex rib is pressed on the conical ring part; the utility model discloses well electric connector's to inserting structural design is reasonable, and fixed mounting is reliable to protection level is high, has fine practicality and generalizability.

Description

Plug-in electric connector

Technical Field

The utility model relates to an to inserting electric connector belongs to electric connector structural design technical field.

Background

An electrical plug-in connector is a common electrical connector for making a plug-in connection between electrical signals. The plug-in electric connector generally comprises a male end connector and a female end connector, and the male end connector is plugged into the female end connector to complete the circuit. The existing plug-in electric connector is generally provided with a sealing ring for sealing protection between a male end connector and a female end connector, however, the existing structure can only actually generate a sealing line after the sealing ring is compressed, and the sealing protection effect is not good enough.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims at providing a configuration optimization is reasonable, and waterproof grade is high to inserting electric connector.

Realize the utility model discloses the technical scheme of purpose is:

a plug-in electric connector comprises a male end connector and a female end connector, wherein the male end connector comprises a male end seat and a male terminal which is fixed on the male end seat in an injection molding mode, an upward convex plug-in part is arranged at the upper end of the male end seat, a plug-in groove is formed in the inner concave part of the upper end surface of the plug-in part, one end of the male terminal extends into the plug-in groove to serve as a plug part, the female end connector comprises a female end seat and a female terminal which is fixed on the female end seat in the injection molding mode, a sleeve part which is in plug-in fit with the plug-in part is arranged at the lower end of the female end seat, a plug-in table which the plug-in groove is suitable for being plugged in is arranged inside the sleeve part, and one end of the female terminal is of a hollow structure and is embedded in the plug-in table to serve as a plug-in part; the male end seat is provided with a step surface at the bottom of the outer side of the inserting part, the bottom of the outer side of the inserting part is sleeved with a sealing ring which is abutted against the step surface, the sealing ring is provided with a conical ring part and an annular convex part which extends outwards from the bottom of the conical ring part, an annular convex rib which protrudes inwards is formed at the bottom in the sleeve part, when the inserting part is inserted into the sleeve part, the bottom edge of the sleeve part is pressed on the annular convex part, and the annular convex rib is pressed on the conical ring part.

In the technical scheme, the outer wall of the insertion part is provided with a clamping table, the inner wall of the sleeve part is provided with a convex block, the convex block slides over the clamping table when the insertion part is inserted into the sleeve part, and the lower part of the clamping table is abutted against the upper part of the convex block to form interference when the insertion part is inserted into the sleeve part and is inserted in place.

In the above technical solution, the longitudinal cross-sectional shapes of the clamping table and the bump are arc, trapezoid or triangle.

In the technical scheme, the bottom of the insertion part forms a limit groove, and the inner side of the sealing ring is embedded into the limit groove.

In the technical scheme, the male end seat and the female end seat are provided with mounting holes for fixed mounting.

In the above technical scheme, the plug part is provided with an axial slot.

In the technical scheme, the male end seat is externally provided with a first positioning convex part which protrudes outwards and covers the root part of the outer end of the male terminal, and the female end seat is externally provided with a second positioning convex part which protrudes outwards and covers the root part of the outer end of the female terminal.

The utility model discloses positive effect has: the utility model discloses a to inserting electric connector structural design rationally, to inserting connection status as shown in fig. 2, the sleeve part on the female end socket cup joints the outside at grafting portion, grafting platform in the sleeve part is pegged graft in the inserting groove of grafting portion, this kind of labyrinth structure is favorable to strengthening protective properties, plug portion through public terminal inserts the plug bush portion of female terminal and forms the electricity and connect, set up the sealing washer in the outside bottom of grafting portion on this basis, compress tightly annular convex part on the step face through sleeve part 23 bases, thereby compress tightly on toper ring portion through the protruding muscle of annular and form twice sealing line, effectively improved the sealing performance to inserting electric connector, waterproof dustproof and humidity resistance have been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. In the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a middle plug-in electric connector of the present invention;

fig. 2 is a cross-sectional view of the electrical plug connector according to the present invention in the plugged state;

fig. 3 is a cross-sectional view of the electric connector of the present invention in a separated state;

fig. 4 is a schematic structural diagram of the male end connector of the present invention;

fig. 5 is a schematic structural diagram of the middle seal ring of the present invention.

The reference symbols shown in the figures are: 1-male end connector; 11-a male end seat; 12-a male terminal; 121-a plug portion; 13-a plug-in part; 14-a plug groove; 15-clamping the platform; 16-a limiting groove; 17-a first positioning boss; 2-a female end connector; 21-female end seat; 22-female terminal; 23-a sleeve portion; 231-annular convex ribs; 24-a docking station; 25-a socket portion; 26-a bump; 27-a second positioning boss; 3, sealing rings; 31-a tapered ring portion; 32-annular projection.

Detailed Description

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

The plug-in electric connector in the embodiment comprises a male end connector 1 and a female end connector 2.

Specifically, as shown in fig. 1 to 5, the male terminal connector 1 includes a male terminal base 11 and a male terminal 12 fixed to the male terminal base 11 by injection molding, the male terminal base 11 may be made of plastic, the upper end of the male terminal base 11 has an upward protruding insertion portion 13, an insertion groove 14 is formed in an upper end surface of the insertion portion 13 in a recessed manner, one end of the male terminal 12 extends into the insertion groove 14 to serve as a plug portion 121, the female terminal connector 2 includes a female terminal base 21 and a female terminal 22 fixed to the female terminal base 21 by injection molding, the female terminal base 21 may also be made of plastic, the lower end of the female terminal base 21 has a sleeve portion 23 engaged with the insertion portion 13 by insertion, an insertion platform 24 adapted to be inserted into the insertion groove 14 is arranged inside the sleeve portion 23, one end of the female terminal 22 has a hollow structure and is embedded in the insertion platform 24 to serve as a sleeve portion 25 engaged with the plug portion 121 by insertion; a step surface is formed on the outer side bottom of the inserting part 13 on the male end seat 11, a sealing ring 3 which is abutted against the step surface is sleeved on the outer side bottom of the inserting part 13, the sealing ring 3 is provided with a conical ring part 32 and an annular convex part 31 which extends outwards from the bottom of the conical ring part 32, an annular convex rib 231 which protrudes inwards is formed at the inner bottom of the sleeve part 23, when the inserting part 13 is inserted into the sleeve part 23, the bottom edge of the sleeve part 23 is pressed on the annular convex part 31, and the annular convex rib 231 is pressed on the conical ring part 32; the opposite-plug electric connector in the embodiment is in an opposite-plug connection state as shown in fig. 2, the sleeve part 23 on the female end base 21 is sleeved outside the plug part 13, the plug table 24 in the sleeve part 23 is plugged in the plug groove 14 of the plug part 13, the labyrinth structure is favorable for enhancing the protection performance, the plug part 121 of the male terminal 12 is plugged into the plug part 25 of the female terminal 22 to form electric connection, on the basis, the sealing ring 3 is arranged at the bottom of the outer side of the plug part 13, the annular convex part 31 is pressed on the step surface through the bottom edge of the sleeve part 23, and the annular convex rib 231 is pressed on the conical ring part 32 to form two sealing lines, so that the sealing performance of the opposite-plug electric connector is effectively improved, and the waterproof, dustproof and damp-proof performances are improved.

On the basis of the above embodiment, a sealing material layer may be further disposed in the gap between the insertion platform 24 and the sleeve portion 23, and the sealing material layer (e.g., a rubber material layer) is compressed by the upper end edge of the insertion portion 13 after the male end connector 1 and the female end connector 2 are inserted and connected, so as to further improve the sealing and protecting performance.

In one embodiment of the present embodiment, a locking platform 15 is formed on an outer wall of the insertion part 13, a protrusion 26 is formed on an inner wall of the sleeve part 23, when the insertion part 13 is inserted into the sleeve part 23, the protrusion 26 slides over the locking platform 15, and when the insertion part 13 is inserted into the sleeve part 23 and inserted in place, a lower portion of the locking platform 15 abuts against an upper portion of the protrusion 26 to form interference, so as to enhance reliability of connection between the male terminal connector 1 and the female terminal connector 2; as shown in fig. 2 to 4, in order to realize the separation between the male end connector and the female end connector, in this embodiment, the longitudinal cross section of the clamping platform 15 may be an arc, an isosceles trapezoid, an isosceles triangle, or the like, and the longitudinal cross section of the protrusion 26 may be an arc, an isosceles trapezoid, an isosceles triangle, or the like.

Furthermore, a limiting groove 16 is formed at the bottom of the insertion part 13, the inner side of the sealing ring 3 is embedded into the limiting groove 16, and the sealing ring 3 can be positioned through the limiting groove 16, so that the sealing ring 3 cannot slide.

In a further scheme of the above embodiment, as shown in fig. 1 to 4, mounting holes for fixing and mounting are provided on the male end base 11 and the female end base 21, the structure of the mounting holes is set for fixing and mounting the male end base 11 and the female end base 21, and a fastening screw is fixedly connected with equipment after passing through the mounting hole during mounting, so as to ensure the reliability of mounting.

In a further embodiment, an axial slot (not shown) may be disposed on the plug portion 121 in practice, so that the plug portion 121 has elasticity, is deformed by compression when being plugged into the socket portion 25, and can tightly abut against the socket portion 25, thereby ensuring the reliability of the electrical connection.

In a further aspect of the above embodiment, as shown in fig. 1 to 4, the male terminal base 11 has a first positioning protrusion 17 protruding outward and covering the root of the outer end of the male terminal 12, the female terminal base 21 has a second positioning protrusion 27 protruding outward and covering the root of the outer end of the female terminal 22, when the male terminal connector and the female terminal are connected, the first positioning protrusion 17 and the second positioning protrusion 27 are inserted into the positioning holes of the device and fixed by fastening screws, and sealing rings are pressed between the first positioning protrusion 17 and the outer wall of the device and between the second positioning protrusion 27 and the outer wall of the device for sealing.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the present invention.

Claims

1. The oppositely-plugged electric connector comprises a male end connector (1) and a female end connector (2), wherein the male end connector (1) comprises a male end seat (11) and a male terminal (12) which is fixed on the male end seat (11) in an injection molding mode, the upper end of the male end seat (11) is provided with an upwards-protruding plugging part (13), a plugging groove (14) is formed in the inner side of the upper end surface of the plugging part (13) in a concave mode, one end of the male terminal (12) extends into the plugging groove (14) to serve as a plug part (121), the female end connector (2) comprises a female end seat (21) and a female terminal (22) which is fixed on the female end seat (21) in an injection molding mode, the lower end of the female end seat (21) is provided with a sleeve part (23) which is in plugging fit with the plugging part (13), a plugging platform (24) which is suitable for being plugged with the plugging groove (14) is arranged in the sleeve part (23), one end of the female terminal (22) is of a hollow structure and is embedded in the plugging platform (24) to serve as a plugging sleeve part (25) which is plugged with the plug part (121); the male end seat is characterized in that a step surface is formed on the bottom of the outer side of the inserting part (13) on the male end seat (11), a sealing ring (3) which is abutted against the step surface is sleeved on the bottom of the outer side of the inserting part (13), the sealing ring (3) is provided with a conical ring part (31) and an annular convex part (32) which extends outwards from the bottom of the conical ring part (31), an annular convex rib 231 which protrudes inwards is formed at the bottom of the sleeve part (23), when the inserting part (13) is inserted into the sleeve part (23), the bottom edge of the sleeve part (23) is pressed on the annular convex part (32), and the annular convex rib (231) is pressed on the conical ring part (31).

2. The electrical plug connector according to claim 1, wherein the outer wall of the plug portion (13) is formed with a catch (15), the inner wall of the sleeve portion (23) is formed with a projection (26), the projection (26) slides over the catch (15) when the plug portion (13) is inserted into the sleeve portion (23), and the lower portion of the catch (15) abuts against the upper portion of the projection (26) to form an interference when the plug portion (13) is inserted into the sleeve portion (23).

3. The electrical plug connector according to claim 2, wherein the longitudinal cross-sectional shapes of the locking platform (15) and the protrusion (26) are circular arc, trapezoid or triangle.

4. The opposite-plugging electric connector according to claim 1, wherein a limiting groove (16) is formed at the bottom of the plugging portion (13), and the inner side of the sealing ring (3) is embedded in the limiting groove (16).

5. The electrical plug connector according to claim 1, wherein the male terminal block (11) and the female terminal block (21) are provided with mounting holes for fixed mounting.

6. The electrical plug-in connector according to claim 1, wherein the plug portion (121) is provided with an axial slot.

7. The electrical plug-in connector according to claim 1, wherein the male terminal holder (11) has a first positioning protrusion (17) protruding outward and covering the root of the outer end of the male terminal (12), and the female terminal holder (21) has a second positioning protrusion (27) protruding outward and covering the root of the outer end of the female terminal (22).