CN210926398U

CN210926398U - Electric connector, connector assembly and electronic equipment

Info

Publication number: CN210926398U
Application number: CN201921277439.3U
Authority: CN
Inventors: 李国强; 余建飞; 王勇; 陈裕全; 杨勇
Original assignee: Tyco Electronics Shanghai Co Ltd
Current assignee: Tyco Electronics Shanghai Co Ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-07-03
Anticipated expiration: 2029-08-06

Abstract

An electrical connector, a connector assembly and an electronic device. The electrical connector includes: a connector body including an insulative housing and a plurality of conductive terminals mounted in the insulative housing, the conductive terminals adapted for electrical connection with electrical contacts of a circuit board; a base disposed on the insulating housing; a plurality of resilient conductive means mounted on said base, upper ends of said resilient conductive means resiliently protruding from said base, said resilient conductive means cooperating with said base to form a conductive path from an upper portion of said base to a lower portion of said base such that said resilient conductive means is in electrical communication with a ground contact of said circuit board. The grounding function of the electrical connector can be realized by the elastic conductive device and the conductive base arranged on the insulating shell.

Description

Electric connector, connector assembly and electronic equipment

Technical Field

At least one embodiment of the present invention relates to an electrical connector, and more particularly, to an electrical connector with a grounding device, a connector assembly including the electrical connector, and an electronic device.

Background

In the transmission of electrical signals, an electrical connector mounted on a circuit board is generally used in combination with a mating connector to electrically connect external leads to the circuit board. Generally, an electrical connector includes an insulative housing, a plurality of conductive terminals mounted in the insulative housing, and a conductive housing mounted outside the insulative housing, the conductive housing being electrically connected to a ground contact on a circuit board. In this way, when the electrical connector is mounted on a panel or a mounting bracket of a user, the conductive shell is electrically connected with the panel or the support bracket, so that the panel or the mounting bracket is electrically connected with the ground contact of the circuit board.

However, some commercially available electrical connectors do not include a conductive housing and the electrical connector is mounted to a panel or mounting bracket by threads provided on an insulative housing. Since the electrical connector is not provided with a conductive housing, it is difficult to electrically connect the panel or the mounting bracket to the ground contact of the circuit board.

Disclosure of Invention

The object of the utility model is to solve at least one aspect of the above-mentioned problem and defect that exist among the prior art, provide an electric connector, connector assembly and electronic equipment including electric connector, can realize the ground connection function under the condition that is not equipped with electrically conductive casing.

According to an aspect of the present invention, there is provided an electrical connector, including: a connector body including an insulative housing and a plurality of conductive terminals mounted in the insulative housing, the conductive terminals adapted for electrical connection with electrical contacts of a circuit board; a base disposed on the insulating housing; a plurality of resilient conductive means mounted on said base, upper ends of said resilient conductive means resiliently protruding from said base, said resilient conductive means cooperating with said base to form a conductive path from an upper portion of said base to a lower portion of said base such that said resilient conductive means is in electrical communication with a ground contact of said circuit board.

According to an embodiment of the invention, the base is made of an insulating material, the lower end of the elastic conducting means extending from the lower part of the base.

According to an embodiment of the present invention, the base is integrally connected to a lower portion of the insulating housing and formed as an annular flange protruding radially outward.

According to an embodiment of the present invention, the base is provided with a plurality of through holes which are parallel to the direction of the axis of the connector body and through which the elastic conductive means pass respectively. The elastic conductive device includes: an upper conductive portion configured to be telescopically extended upward partially from the through hole; a lower conductive portion partially protruding downward from the through hole; and a first elastic portion disposed between the upper conductive portion and the lower conductive portion.

According to an embodiment of the present invention, each of the lower conductive portions includes: a plug portion configured to protrude downward from the through hole; and a receiving cylinder connected to an upper portion of the insertion part and configured to receive at least a portion of the first elastic part.

According to an embodiment of the invention, the upper conductive part is partially inserted into the receiving cylinder.

According to an embodiment of the utility model, be equipped with spacing portion on at least one in last conductive part and the receiving cylinder, in order to prevent go up the conductive part and break away from the receiving cylinder.

According to the utility model discloses an embodiment, be equipped with the first flange portion of radial inward protrusion in the through-hole, the radial outward protrusion of receiving cylinder the part of grafting portion supports and leans on first flange portion.

According to the utility model discloses an embodiment, insulating casing's outside is equipped with the sealing ring.

According to an embodiment of the present invention, the base is made of an electrically conductive material and includes: a mounting ring mounted on said insulating housing; and the pair of mounting seats are arranged outside two opposite sides of the mounting ring, and the two elastic conductive devices are mounted in the mounting seats and are electrically connected with the mounting seats.

According to an embodiment of the invention, a first blind hole is formed in each of the mounting seats, the elastic conductive means being partially inserted in the first blind hole.

According to the utility model discloses an embodiment, elasticity electrically conductive device includes: a second resilient portion, a lower end of said second resilient portion being received in said first blind bore; and a conductive part partially inserted into the first blind hole and extending against the elastic force of the second elastic part.

According to the utility model discloses an embodiment, form the second blind hole in the conductive part, the upper end of second elasticity portion is inserted in the second blind hole.

According to the utility model discloses an embodiment be equipped with spacing portion on at least one in conductive part and the first blind hole, in order to prevent the conductive part breaks away from first blind hole.

According to the utility model discloses an embodiment, spacing portion includes: two protrusions protruding radially outward from the outer side of the lower portion of the conductive portion; a second flange portion provided at an upper end of the first blind hole; and two guide grooves formed on the second flange portion, the two flange protrusions moving from an outer side of the second flange portion to an inner side of the second flange portion through the guide grooves, respectively.

According to an embodiment of the invention, the inner side of the second flange portion is provided with two limiting grooves configured to receive two of the protrusions located inside the second flange portion, respectively.

According to an embodiment of the invention, the insulating housing has a substantially circular cross-section.

According to an embodiment of another aspect of the present invention, there is provided an electronic apparatus, including: an electrical connector as in any of the above embodiments; and the conductive terminals of the electric connector are respectively and electrically connected with the electric contacts of the circuit board, and one of the base and the elastic conductive device of the electric connector is electrically connected with the grounding contact of the circuit board.

According to an embodiment of another aspect of the present invention, there is provided an electronic apparatus, including: the connector assembly of the above embodiment; and a conductive frame on which the insulating housing is mounted and which elastically presses an elastic conductive means of the electrical connector such that the elastic conductive means is electrically connected with the conductive frame. According to the utility model discloses an electric connector, including electric connector's connector assembly and electronic equipment of above-mentioned embodiment can realize electric connector's ground connection function through elasticity electrically conductive device and the base that sets up on insulating housing.

Other objects and advantages of the present invention will become apparent from the following description of the invention, which is made with reference to the accompanying drawings, and can help to provide a thorough understanding of the present invention.

Drawings

Fig. 1 shows a schematic perspective view of an electrical connector according to an exemplary embodiment of the present invention;

FIG. 2 is an exploded view of the electrical connector shown in FIG. 1;

fig. 3 shows an axial cross-sectional view of the electrical connector shown in fig. 1 before mounting to a conductive frame;

fig. 4 shows an axial cross-sectional view of the electrical connector shown in fig. 1 mounted to a conductive frame;

fig. 5 shows a schematic perspective view of an electrical connector according to another exemplary embodiment of the present invention;

FIG. 6 is an exploded view of the electrical connector shown in FIG. 5;

FIG. 7 shows an axial cross-sectional view of the conductive portion of the electrical connector shown in FIG. 5;

fig. 8 shows a partial cross-sectional view of the electrical connector shown in fig. 5 before mounting to a conductive frame;

fig. 9 shows a partial cross-sectional view of the electrical connector shown in fig. 5 mounted to a conductive frame;

fig. 10 shows a cross-sectional view of the mounting base of the electrical connector shown in fig. 5, without the line of sight shown; and

fig. 11 shows another cross-sectional view of the mounting of the base of the electrical connector shown in fig. 5, without the line of sight.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept and should not be construed as limiting the invention.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.

According to a general technical concept of the present invention, there is provided an electrical connector, including: a connector body, a base and a plurality of resilient conductive means. The connector body includes an insulative housing and a plurality of conductive terminals mounted in the insulative housing, the conductive terminals adapted for electrical connection with electrical contacts of a circuit board; the base is arranged on the insulating shell; a plurality of resilient conductive means are mounted on the base with upper ends of the resilient conductive means resiliently protruding from the base, the resilient conductive means cooperating with the base to form a conductive path from an upper portion of the base to a lower portion of the base such that the resilient conductive means is in electrical communication with a ground contact of the circuit board.

According to another general technical concept of the present invention, there is provided a connector assembly, including: the conductive terminals of the electric connector are respectively and electrically connected with the electric contacts of the circuit board, and one of the base and the elastic conductive device of the electric connector is electrically connected with the grounding contact of the circuit board.

According to another general technical concept of the present invention, there is provided an electronic apparatus, comprising: the insulating shell is mounted on the conductive frame, and the conductive frame elastically presses the elastic conductive device of the electric connector, so that the conductive frame is electrically connected with the conductive frame.

Fig. 1 shows a schematic perspective view of an electrical connector according to an exemplary embodiment of the present invention; FIG. 2 is an exploded view of the electrical connector shown in FIG. 1; fig. 3 shows an axial cross-sectional view of the electrical connector shown in fig. 1 before mounting to a conductive frame; fig. 4 shows an axial cross-sectional view of the electrical connector shown in fig. 1 mounted to a conductive frame.

Referring to fig. 1-4, in an exemplary embodiment, an electrical connector 100 includes a connector body 1, a base 2, and a plurality of resilient conductive means 3. The connector body 1 comprises an insulating housing 11, for example made of plastic material, having a substantially circular cross section and a plurality of conductive terminals 12 mounted in said insulating housing 11, said conductive terminals 12 being adapted to be electrically connected with corresponding electrical contacts of the circuit board 200. The conductive terminals 12 include, but are not limited to, signal terminals, power terminals, and ground terminals. The base 2 is disposed on the insulating housing 11, and the conductive terminals 12 protrude from a lower portion of the base 2 to be plugged or soldered to corresponding electrical contacts of the circuit board 200. A plurality of elastic conductive means 3 are mounted on the base 2, the upper ends of the elastic conductive means 3 elastically protruding from the base 2, the elastic conductive means 3 cooperating with the base 2 to form a conductive path from the upper portion of the base 2 to the lower portion of the base 2, so that the elastic conductive means 3 is in electrical communication with the ground contact of the circuit board 200.

In an exemplary embodiment, the base 2 is made of an insulating material, and the lower end of the elastic conductive means 3 protrudes from the lower portion of the base 2. Further, the base 2 is integrally coupled to a lower portion of the insulating housing 11 and formed as an annular flange protruding radially outward. That is, the base 2 is made of the same material as that of the insulating housing 11 through the same process.

In an exemplary embodiment, a plurality of through holes 21 passing through the base 2 in a direction parallel to the axis of the connector body 1 are provided on the base 2, and the elastic conductive means 3 pass through the through holes 21, respectively. The elastic conductive means 3 comprise: an upper conductive portion 31 configured to telescopically partially protrude upward from the base 21; a lower conductive portion 32 partially protruding downward from the through hole 21; and a first elastic portion 33 such as a coil spring provided between the upper conductive portion 31 and the lower conductive portion 32. In the above embodiment, the elastic conductive means 3 is formed by three separate and separate members, but the present invention is not limited thereto, and it is understood that the upper conductive portion, the lower conductive portion, and the first elastic portion of the elastic conductive means may be integrally formed.

In an exemplary embodiment, each of the lower conductive portions 32 includes: a socket portion 321 configured to protrude downward from the through hole 21; and a receiving cylinder 322 connected to an upper portion of the socket, the receiving cylinder 322 being configured to receive at least a portion of the first elastic part 33. Further, the upper conductive portion 31 is partially inserted into the receiving cylinder 322. Thus, as shown in fig. 2 to 4, the first elastic portion 33 is accommodated in the space defined by the upper conductive portion 31 and the lower conductive portion.

In one embodiment, a stopper portion is provided on at least one of the upper conductive portion 31 and the receiving cylinder 322 to prevent the upper conductive portion from coming off the receiving cylinder, thereby reliably accommodating the first elastic portion in the space defined by the upper conductive portion 31 and the lower conductive portion 32.

In one embodiment, a first flange portion protruding radially inward is provided in the through hole 21, and a portion of the receiving cylinder 322 protruding radially outward from the insertion portion 321 abuts against the first flange portion. In this way, the elastic conductive means 3 can be prevented from falling from the lower portion of the base 2 in the case where the electrical connector 100 is not mounted on the circuit board.

In one embodiment, the exterior of the insulating housing 11 is provided with a sealing ring 4. Thus, in the case where the electrical connector 100 is mounted on the conductive frame 300, the electrical connector 100 is securely coupled to the conductive frame 300 in a sealing manner, and foreign substances such as dust and moisture are prevented from entering the circuit board through the through hole of the mounting bracket.

As shown in fig. 3 and 4, a connector assembly of an exemplary embodiment of the present invention includes: in the electrical connector 100 and the circuit board 200 according to any of the above embodiments, the conductive terminals 12 of the electrical connector 100 are electrically connected to the electrical contacts of the circuit board 200, respectively, and the elastic conductive device 3 of the electrical connector 100 is electrically connected to the ground contact of the circuit board 200.

The utility model discloses an electronic equipment of exemplary embodiment includes: the connector assembly of the above embodiment, and the conductive frame 300, the insulating housing 11 is mounted on the conductive frame 300, for example, in the through hole of the mounting frame 300, and the conductive frame 300 elastically presses the elastic conductive device 3 of the electrical connector 100, so that the elastic conductive device 3 is reliably electrically connected with the conductive frame 300. In this way, it is achieved that the conductive frame 300 is electrically connected with the ground contact of the circuit board 200 through the elastic conductive means 3. It will be appreciated that in the case where the conductive terminals 12 include ground terminals, the ground terminals may also be electrically connected to the ground contacts of the circuit board by resilient conductive means, or directly to the ground contacts of the circuit board.

Fig. 5 shows a schematic perspective view of an electrical connector according to another exemplary embodiment of the present invention; FIG. 6 is an exploded view of the electrical connector shown in FIG. 5; FIG. 7 shows an axial cross-sectional view of the conductive portion of the electrical connector shown in FIG. 5; fig. 8 shows a partial cross-sectional view of the electrical connector shown in fig. 5 before mounting to a conductive frame; fig. 9 shows a partial cross-sectional view of the electrical connector shown in fig. 5 mounted to a conductive frame; fig. 10 shows a cross-sectional view of the mounting base of the electrical connector shown in fig. 5, without the line of sight shown; and FIG. 11 shows another cross-sectional view of the mounting of the base of the electrical connector shown in FIG. 5, without the line of sight shown.

Referring to fig. 1-4, in an exemplary embodiment, an electrical connector 100 includes a connector body 1, a base 2, and a plurality of resilient conductive means 3. The connector body 1 includes an insulative housing 11, for example, made of a plastic material, having a substantially circular cross section, and a plurality of conductive terminals 12 mounted in the insulative housing 11. The conductive terminals 12 include, but are not limited to, signal terminals, power terminals, and ground terminals. The base 2 is disposed on the insulating housing 11, and the conductive terminals 12 protrude from a lower portion of the base 2 to be plugged or soldered to corresponding electrical contacts of the circuit board 200. A plurality of elastic conductive means 3 are mounted on said base 2, the upper ends of said elastic conductive means 3 projecting elastically from said base 2, said elastic conductive means 3 cooperating with said base 2 to form an electrically conductive path from the upper portion of said base 2 to the lower portion of said base 2.

Referring to fig. 5-11, in an exemplary embodiment, an electrical connector 100 ' includes a connector body 1, e.g., circular in cross-section, a base 2 ' and a plurality of resilient conductive means 3 '. The connector body 1 includes an insulative housing 11 made of, for example, a plastic material, and a plurality of conductive terminals 12 mounted in the insulative housing 11. The conductive terminals 12 include, but are not limited to, signal terminals, power terminals, and ground terminals. A base 2 'is detachably provided at one end of the insulative housing 11, and the conductive terminals 12 protrude from a lower portion of the base 2' to be plugged or soldered to corresponding electrical contacts of the circuit board 200. A plurality of elastic conductive means 3 'are mounted on said base 2', the upper ends of said elastic conductive means 3 'elastically projecting from said base 2', said elastic conductive means 3 'cooperating with said base 2' to form an electrically conductive path from the upper portion of said base 2 'to the lower portion of base 2'.

In an exemplary embodiment, the base 2' is made of an electrically conductive material and includes: a mounting ring 22 mounted on the insulating housing 11, and a pair of mounting seats 23 disposed outside of opposite sides of the mounting ring 22, two of the elastic conductive devices 3' being mounted in the mounting seats 23 and electrically connected to the mounting seats 23. In this way, the base 2 'cooperates with the elastic conductive means 3' to constitute a conductive path.

In an exemplary embodiment, a first blind hole 231 is formed on each of the mounting seats 23, and the elastic conductive device 3 ' is partially inserted into the first blind hole 231, so that the elastic conductive device 3 ' is electrically connected with the base 2 '.

In an exemplary embodiment, the elastic conductive means 3' comprise: a second elastic portion 34 and a conductive portion 35. The lower end of the second elastic portion 34 is received in the first blind hole 231; the conductive portion 35 is partially inserted into the first blind hole 231 and expands and contracts against the elastic force of the second elastic portion 34, so that the elastic conductive device 3 'is reliably electrically connected with the base 2'.

In an exemplary embodiment, a second blind hole 351 with a downward opening is formed in the conductive portion 35, and an upper end of the second elastic portion 34 is inserted into the second blind hole 351. In this way, both ends of the second elastic part 34 are received in the first and second

blind holes

231 and 351, respectively, thereby maintaining the stability of the second elastic part.

In an exemplary embodiment, a stopper is disposed on at least one of the conductive portion 35 and the first blind hole 231 to prevent the conductive portion 35 from separating from the first blind hole 231. Specifically, the stopper portion includes: two protrusions 352 protruding radially outward from the outer side of the lower portion of the conductive portion 35; a second flange portion 232 disposed at an upper end of the first blind hole 231; and two guide grooves 233 formed on the second flange portion 232, the two flange protrusions 352 of the conductive portion 35 respectively passing through the guide grooves 233 on the second flange portion 232 to move from the outside of the second flange portion to the inside of the second flange portion. Further, the inner side of the second flange portion 232 is provided with two limiting grooves 235, and the limiting grooves 235 are configured to receive the two protruding portions 352 respectively located at the inner side of the second flange portion 232. In this way, after the two flange protruding portions 352 of the conductive portion 35 have respectively passed through the guide grooves 233 on the second flange portion 232 from the outside of the second flange portion to the inside of the second flange portion, the conductive portion 35 may be rotated so that the protruding portions 352 enter the stopper grooves 235. Thus, the conductive portion 35 can be prevented from coming off the first blind hole 231.

In an exemplary embodiment, a solder foot 234 adapted for soldering to a ground contact of a circuit board is provided on the lower portion of the mounting block 23. Further, through holes 236 may be formed on the soldering legs 234 to more securely mount the mount 23 on the circuit board by using a connector such as a bolt through the through holes 236.

In the above embodiment, the insulating case 11 has a substantially circular cross section, but the present invention is not limited thereto, and the insulating case may have an oval, square, rectangular, or other polygonal cross section.

Referring to fig. 5-8, a connector assembly according to an exemplary embodiment of the present invention includes: the electrical connector (100') of any of the above embodiments; and a circuit board 200, the conductive terminals 12 of the electrical connector 100 ' are electrically connected to the electrical contacts of the circuit board 200, respectively, and the base 2 ' of the electrical connector 100 ' is electrically connected to the ground contact of the circuit board 200.

According to the utility model discloses an electronic equipment of example embodiment includes: in the connector assembly and the conductive frame 300 according to the above embodiments, the insulating housing 11 is mounted on the conductive frame 300, for example, in the through hole of the mounting frame 300, and the conductive frame 300 elastically presses the elastic conductive device 3 ' of the electrical connector 100 ', so that the conductive frame 300 and the elastic conductive device 3 ' are reliably electrically connected. In this way, it is achieved that the conductive frame 300 is electrically connected with the ground contact of the circuit board 200 through the elastic conductive means 3 'and the base 2'. It will be appreciated that in the case where the conductive terminals 12 include ground terminals, the ground terminals may also be electrically connected to the ground contacts of the circuit board by resilient conductive means, or directly to the ground contacts of the circuit board.

The electrical connector according to the above-described embodiment of the present invention is adapted to be mounted on a circuit board of an electrical system such as a communication system, a computer center control room, an industrial automation device, an industrial interconnection device, etc., and electrically connected to a mating connector such as a plug connector for connecting a communication cable, thereby achieving electrical connection of the circuit board to the communication cable.

It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.

Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplify preferred embodiments of the present invention, and should not be construed as limiting the present invention.

Although a few embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Additionally, any element numbers of the claims should not be construed as limiting the scope of the invention.

Claims

1. An electrical connector, comprising:

a connector body including an insulative housing and a plurality of conductive terminals mounted in the insulative housing, the conductive terminals adapted for electrical connection with electrical contacts of a circuit board;

a base disposed on the insulating housing;

a plurality of resilient conductive means mounted on said base, upper ends of said resilient conductive means resiliently protruding from said base, said resilient conductive means cooperating with said base to form a conductive path from an upper portion of said base to a lower portion of said base such that said resilient conductive means is in electrical communication with a ground contact of said circuit board.

2. An electrical connector as claimed in claim 1, wherein the base is made of an insulating material and the lower end of the resilient conductive means projects from a lower portion of the base.

3. The electrical connector of claim 2, wherein the base is integrally connected to a lower portion of the insulating housing and is formed as a radially outwardly projecting annular flange.

4. An electrical connector according to any one of claims 1 to 3, wherein a plurality of through holes are provided on the base to pass through the base in a direction parallel to the axis of the connector body, the elastic conductive means passing through the through holes, respectively;

the elastic conductive device includes:

an upper conductive portion configured to be telescopically extended upward partially from the through hole;

a lower conductive portion partially protruding downward from the through hole; and

a first resilient portion disposed between the upper and lower conductive portions.

5. The electrical connector of claim 4, wherein each of the lower conductive portions comprises:

a plug portion configured to protrude downward from the through hole; and

a receiving cylinder connected to an upper portion of the insertion part and configured to receive at least a portion of the first elastic part.

6. The electrical connector of claim 5, wherein the upper conductive portion is partially inserted into the receiving cylinder.

7. The electrical connector of claim 6, wherein a stopper portion is provided on at least one of the upper conductive portion and the receiving cylinder to prevent the upper conductive portion from coming off the receiving cylinder.

8. An electrical connector as claimed in claim 5, wherein a first flange portion projecting radially inwardly is provided in the through hole, and a portion of the receiving cylinder projecting radially outwardly of the mating part abuts against the first flange portion.

9. An electrical connector according to any of claims 1-3, wherein the exterior of the insulating housing is provided with a sealing ring.

10. The electrical connector of claim 1, wherein the base is made of an electrically conductive material and comprises:

a mounting ring mounted on said insulating housing; and

and the two elastic conductive devices are arranged in the mounting seats and are electrically connected with the mounting seats.

11. An electrical connector as claimed in claim 10, wherein a first blind hole is formed in each of said mounting seats, said resilient conductive means being partially inserted in said first blind hole.

12. The electrical connector of claim 11, wherein the resilient conductive means comprises:

a second resilient portion, a lower end of said second resilient portion being received in said first blind bore; and

a conductive portion partially inserted into the first blind hole and expanding and contracting against an elastic force of the second elastic portion.

13. The electrical connector of claim 12, wherein a second blind hole is formed in the conductive portion, and an upper end of the second resilient portion is inserted into the second blind hole.

14. The electrical connector of claim 13, wherein a stop is provided on at least one of the conductive portion and the first blind hole to prevent the conductive portion from disengaging the first blind hole.

15. The electrical connector of claim 14, wherein the position limiting portion comprises:

two protrusions protruding radially outward from the outer side of the lower portion of the conductive portion;

a second flange portion provided at an upper end of the first blind hole; and

two guide grooves formed on the second flange portion, the two flange protrusions moving from an outer side of the second flange portion to an inner side of the second flange portion through the guide grooves, respectively.

16. The electrical connector of claim 15, wherein the inner side of the second flange portion is provided with two retainer grooves configured to receive the two projections, respectively, on the inner side of the second flange portion.

17. The electrical connector of any of claims 1-3, wherein the insulative housing has a generally circular cross-section.

18. A connector assembly, comprising:

the electrical connector of any one of claims 1-17; and

and the conductive terminals of the electric connector are respectively and electrically connected with the electric contacts of the circuit board, and one of the base and the elastic conductive device of the electric connector is electrically connected with the grounding contact of the circuit board.

19. An electronic device, comprising:

the connector assembly of claim 18; and

a conductive frame on which the insulating housing is mounted and which elastically presses an elastic conductive means of the electrical connector such that the elastic conductive means is electrically connected with the conductive frame.