CN210137068U - Electrical connector - Google Patents

Abstract

The application discloses an electric connector, which comprises a plastic body, a plurality of electric connector bodies, at least one shielding piece and a metal shell, wherein the plastic body is provided with a plurality of accommodating grooves and at least one shielding piece accommodating groove, and each shielding piece accommodating groove is positioned between two adjacent accommodating grooves; the plurality of electric connector bodies are respectively arranged in the corresponding accommodating grooves; the shielding pieces are respectively arranged in the corresponding shielding piece accommodating grooves and comprise metal shielding bodies and insulating layers, and the insulating layers are arranged on the surfaces of the side walls, facing the shielding piece accommodating grooves, of the metal shielding bodies; the metal shell is arranged on the plastic body, and the metal shielding body exposed out of the insulating layer is connected with the metal shell and grounded. Through being provided with the insulating layer on the shield, effectively increase the length of electric path of crawling, make the electric connection terminal of the electric connector of this application have good withstand voltage nature and anti thunderbolt characteristic to can reach withstand voltage and anti thunderbolt requirement at present.

Description

Electrical connector

Technical Field

The present application relates to the field of connector technology, and more particularly, to an electrical connector.

Background

Referring to fig. 1, the conventional electrical connector 2 generally includes a plastic body 21 accommodating a plurality of electrical connector bodies 24 and a metal housing 23 covering the plastic body 21, in order to shield electromagnetic interference generated by each electrical connector body 24, a metal shielding member 22 is disposed between two adjacent electrical connector bodies 24, the metal shielding member 22 is connected to the metal housing 23 and grounded, so that the metal shielding member 22 can shield electromagnetic interference of each electrical connector body 24 to other electrical connector bodies 24, and signal crosstalk between the electrical connector bodies 24 is prevented, but when the electrical connector 2 is subjected to a voltage withstand test, an electrical creeping path S' of the electrical connector 2 is short, a terminal 241 of the electrical connector 2 has poor voltage resistance and lightning resistance, and the terminal 241 cannot meet the current requirements of voltage resistance and lightning resistance.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an electric connector, solves the electric creeping path of present electric connector short, and the pressure resistance and the anti thunderbolt of terminal are not good, can't reach withstand voltage and the problem of anti thunderbolt requirement.

In order to solve the technical problem, the present application is implemented as follows:

an electrical connector is provided, comprising: the shielding piece accommodating groove is formed in the plastic body and is positioned between every two adjacent accommodating grooves; a plurality of electric connector bodies which are respectively arranged in the corresponding accommodating grooves; the shielding pieces are respectively arranged in the corresponding shielding piece accommodating grooves and comprise metal shielding bodies and insulating layers, and the insulating layers are arranged on the surfaces of the side walls, facing the shielding piece accommodating grooves, of the metal shielding bodies; and the metal shell is arranged on the plastic body, and the metal shielding body exposed out of the insulating layer is connected with the metal shell and is grounded.

In the embodiment of the application, the insulating layer is arranged on the shielding part, so that the length of the electric crawling path is effectively increased, the electric connection terminal of the electric connector has good pressure resistance and lightning stroke resistance, and the current pressure resistance and lightning stroke resistance requirements can be met.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a cross-sectional view of a prior art electrical connector;

FIG. 2 is a perspective view of an electrical connector according to one embodiment of the present application;

fig. 3 is an exploded view of an electrical connector according to an embodiment of the present application;

FIG. 4 is another exploded view of an electrical connector according to an embodiment of the present application;

FIG. 5 is a schematic view of a shield according to an embodiment of the present application;

FIG. 6 is a cross-sectional view taken along AA' of FIG. 5;

FIG. 7 is a cross-sectional view taken along direction BB' in FIG. 5;

FIG. 8 is a cross-sectional view of an electrical connector according to one embodiment of the present application;

FIG. 9 is another cross-sectional view of an electrical connector according to an embodiment of the present application;

fig. 10 is a perspective view of a plastic body loaded with an electrical connector body and a shield according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Please refer to fig. 2, fig. 3 and fig. 4, which are perspective and exploded views of an electrical connector according to an embodiment of the present application; as shown, the electrical connector 1 of the present embodiment includes a plastic body 10, a plurality of electrical connector bodies 11, at least one shield 12, and a metal housing 13. In the present embodiment, the number of the electrical connector body 11 is two, the number of the shielding element 12 is one, and the electrical connector body 11 is described by using an RJ45 connector. The plastic body 10 has an upper surface 100, a lower surface 101, a front surface 102, a rear surface 103 and two side surfaces 104, and includes a plurality of receiving slots 105 and at least one shielding element receiving slot 106, each shielding element receiving slot 106 is located between two adjacent receiving slots 105, an extending direction of each receiving slot 105 is the same as an extending direction of each shielding element receiving slot 106, and in the embodiment, the extending direction of each receiving slot 105 and the extending direction of each shielding element receiving slot 106 are both parallel to the side surfaces 104 of the plastic body 10. Each receptacle 105 includes an electrical connector body receptacle 1051 and a docking slot 1052, the docking slot 1052 communicates with the electrical connector body receptacle 1051, the electrical connector body receptacle 1051 is adjacent to the rear surface 103 of the plastic body 10, and the docking slot 1052 is adjacent to the front surface 102 of the plastic body 10. The electrical connector body receiving slot 1051 has an insertion opening 10511, and the insertion opening 10511 is perpendicular to the extending direction of the receiving slot 105 and is located on the rear surface 103 of the plastic body 10. Docking socket 1052 has docking receptacle 10521, docking receptacle 10521 being located at front surface 102 of plastic body 10. Each shield receiving slot 106 has two opposite receiving openings 1061, the two receiving openings 1061 are respectively located on the front surface 102 and the rear surface 103 of the plastic body 10, which also means that the two receiving openings 1061 are respectively located on the two opposite surfaces of the plastic body 10, which is just an implementation aspect of the present application, and the two opposite surfaces are not limited to the front surface 102 and the rear surface 103.

Each electrical connector body 11 is disposed in the corresponding receiving slot 105, and in the embodiment, the number of the electrical connector bodies 11 is two, so the number of the receiving slots 105 is also two. Each electrical connector body 11 has a mating portion 11a and an electrical connection portion 11b, the electrical connector body 11 is inserted into the receiving cavity 105 from the insertion opening 10511, the mating portion 11a is inserted into the mating slot 1052 of the receiving cavity 105, and the electrical connection portion 11b is disposed in the electrical connector body receiving cavity 1051. The electrical connection portion 11b has a plurality of electrical connection terminals 111, and when the electrical connector body 11 is a vertical electrical connector body, the plurality of electrical connection terminals 111 can directly protrude from the insertion opening 10511, and when the electrical connector body 11 is a horizontal electrical connector body, the plurality of electrical connection terminals 111 protrude from the lower surface 101 of the plastic body 10. In the present embodiment, the electrical connector housing trough 1051 of the housing trough 105 of the present embodiment has a terminal opening 10512, the terminal opening 10512 is parallel to the extending direction of the housing trough 105 and is located on the lower surface 101 of the plastic body 10, and the electrical connection terminals 111 protrude from the terminal opening 10512. The terminal opening 10512 communicates with the insertion opening 10511, so that the electrical connector body 11 can be easily disposed in the receiving groove 105.

Each of the shielding members 12 is disposed in the corresponding shielding member receiving groove 106, in the embodiment, the number of the shielding members 12 is one, and thus the number of the shielding member receiving grooves 106 is also one. The shield 12 is located between the two electrical connector bodies 11 to separate the two electrical connector bodies 11. Please refer to fig. 5, 6 and 7, which are schematic views of a shielding member according to an embodiment of the present application, a cross-sectional view along AA 'in fig. 5, and a cross-sectional view along BB' in fig. 5; as shown in the figure, the shield 12 includes a metal shield body 121 and an insulating layer 122, the insulating layer 122 is disposed on a surface of the metal shield body 121 facing a sidewall of the shield receiving slot 106, in other words, the insulating layer 122 is not disposed on a surface of the metal shield body 121 facing the receiving opening 1061 of the shield receiving slot 106, that is, the metal shield body 121 is exposed from the insulating layer 122. Wherein the insulating layer 122 is formed on the metal shielding body 121 by spraying or electroplating.

Referring to fig. 8, a cross-sectional view of an electrical connector according to an embodiment of the present application is shown; as shown in the drawings, the metal shell 13 is disposed on the plastic body 10, and the plastic body 10 is disposed in the accommodating space 131 of the metal shell 13, in the embodiment, the metal housing 13 covers the upper surface 100, the front surface 102, the rear surface 103 and the two side surfaces 104 of the plastic body 10, the metal housing 13 has an inlet 132 and two insertion holes 133, the inlet 132 and the two insertion holes 133 are communicated with the accommodating space 131, the plastic body 10 loaded with the two electrical connector bodies 11 and the shielding member 12 is inserted from the inlet 132, the plastic body 10 is inserted into the accommodating space 131 of the metal housing 13, the position of the inlet 132 is determined according to the positions of the plurality of electrical connection terminals 111 of the electrical connection portion 11b of the electrical connector body 11, if the electrical connector body 11 is a vertical electrical connector, a plurality of electrical connector terminals 111 protrude from the rear surface of the plastic body 10, the introduction port 132 is opened on the surface of the metal case 13 corresponding to the rear surface 103 of the plastic body 10; if the electrical connector body 11 is a horizontal electrical connector, the plurality of electrical connector terminals 111 extend from the lower surface 101 of the plastic body 10, so that the insertion opening 132 is opened on the surface of the metal shell 13 corresponding to the lower surface 101 of the plastic body 10; in the present embodiment, the electrical connector body 11 belongs to a horizontal electrical connector, so the insertion opening 132 is opened on the surface of the metal housing 13 corresponding to the lower surface 101 of the plastic body 10. The two insertion holes 133 correspond to the two docking insertion holes 10521 of the two receiving slots 105, respectively, and the number of the insertion holes 133 is determined according to the number of the receiving slots 105.

Please refer to fig. 9, which is another cross-sectional view of the electrical connector according to an embodiment of the present application; as shown in the figure, after the plastic body 10 is disposed on the metal housing 13, two surfaces of the metal shielding body 121 of the shielding element 12 facing the two accommodating openings 1061 respectively abut against the surface of the metal housing 13, that is, the metal surface of the metal shielding body 121 exposed from the insulating layer 122 is connected to the surface of the metal housing 13, so that the metal shielding body 121 is grounded, thereby effectively shielding electromagnetic interference generated by the plurality of electrical connector bodies 11, and effectively preventing signal crosstalk between the plurality of electrical connector bodies 11. Then, the electrical connector 1 of the present embodiment passes the voltage withstanding and lightning strike resisting test, which mainly tests the highest voltage that the electrical connection terminal 111 of each electrical connector body 11 can bear, including the highest voltage that can be borne between the input end and the output end of the test electrical connection terminal 111 and the highest voltage that can be borne between the terminal and the metal shell 13. After the withstand voltage and lightning resistance tests, it is known that the electrical creeping path S of the electrical connector 1 of the present embodiment is the connection distance between the end of the electrical connection terminal 111 of the electrical connector body 11 close to the upper surface of the plastic body 10 and the surface of the shielding member 12 facing the lower surface 101 of the plastic body 10 (as shown in fig. 8); generally, when the metal shield 22 of the electrical connector 2 is not provided with an insulating layer, the electrical creeping path S' is a connection distance from one end of the terminal 241 of the electrical connector body 24 close to the upper surface of the plastic body 21 to the middle of the shield 22 (as shown in fig. 1), which also means that the electrical creeping path S of the electrical connector 1 of the present embodiment is longer because the shield 12 is provided with the insulating layer 122, and also means that the electrical connection terminal 111 of the electrical connector 1 of the present embodiment has good voltage resistance, and can pass a voltage resistance test of 6KV, and meet the voltage resistance requirement of the electrical connection terminal 111 at present. When the distance between the electrical connection terminal 111 and the metal shell 13 of the electrical connector 1 of the present embodiment is reduced, the electrical connector 1 of the present embodiment can maintain good pressure resistance, and as the pressure resistance of the electrical connection terminal 111 is improved, the electrical connector 1 of the present application also has a lightning protection characteristic.

Preferably, referring also to fig. 10, there is shown a perspective view of a plastic body carrying an electrical connector body and a shield according to an embodiment of the present application; as shown in the figure, the plastic body 10 of the present embodiment further has two electrical connector body positioning notches 107, each electrical connector body positioning notch 107 is communicated with the corresponding electrical connector body receiving slot 1051 of the receiving slot 105, the extending direction of the electrical connector body positioning notch 107 is parallel to the extending direction of the receiving slot 105, and in the present embodiment, the electrical connector body positioning notch 107 extends from the rear surface 103 of the plastic body 10 to the front surface 102 thereof. When each electrical connector body 11 is disposed in the corresponding receiving slot 105, the positioning member 112 of each electrical connector body 11 enters the corresponding positioning notch 107 of the electrical connector body, and the positioning member 112 abuts against the sidewall of the positioning notch 107 of the electrical connector body perpendicular to the extending direction of the receiving slot 105, so as to prevent the electrical connector body 11 from continuously advancing toward the front surface 102 of the plastic body 10, so that the abutting portion 11a is accurately disposed in the abutting slot 1052 of the receiving slot 105, and the electrical connector portion 11b is accurately disposed in the receiving slot 1051 of the electrical connector body. In another embodiment, the width of the electrical connector body positioning notch 107 at the end near the insertion opening 10511 is greater than the width of the electrical connector body positioning notch 107 at the end away from the insertion opening 10511, such that the positioning member 112 is easily accessible from the end of the electrical connector body positioning notch 107 near the insertion opening 10511. The number of the electrical connector body positioning notches 107 is determined according to the number of the electrical connector bodies 11, that is, the number of the electrical connector body positioning notches 107 is consistent with the number of the electrical connector bodies 11.

Preferably, the upper surface 100 of the plastic body 10 of the embodiment further has a shielding element positioning slot 108, the shielding element positioning slot 108 is located above the shielding element receiving slot 106 and is communicated with the shielding element receiving slot 106, so the plastic body 10 located in the shielding element receiving slot 106 further has a shielding element positioning notch 1062, the shielding element positioning slot 108 and the shielding element positioning notch 1062 extend from the rear surface 103 of the plastic body 10 to the front surface 102 thereof, that is, the extending directions of the shielding element positioning slot 108 and the shielding element positioning notch 1062 are parallel to the extending direction of the shielding element receiving slot 106. The surface of the shielding element 12 facing the upper surface 100 of the plastic body 10 is further provided with a shielding positioning element 123, when the shielding element 12 is disposed in the shielding element accommodating groove 106, the shielding positioning element 123 enters the shielding element positioning groove 108 through the shielding element positioning notch 1062, the surface of the shielding positioning element 123 far away from the rear surface 103 of the plastic body 10 abuts against the surface of the shielding element positioning groove 108 far away from the rear surface 103 of the plastic body 10, that is, the surface of the shielding positioning element 123 far away from the rear surface 103 of the plastic body 10 abuts against the sidewall of the shielding element positioning groove 108 perpendicular to the extending direction of the shielding element accommodating groove 106, and the shielding element 12 is prevented from penetrating out of the accommodating opening 1061 on the front surface 102 of the plastic body 10. In the present embodiment, the extending direction of the shielding positioning element 123 is perpendicular to the extending direction of the metal shielding body 121, and the surface of the shielding positioning element 123 is attached to the surface of the shielding positioning groove 108 parallel to the extending direction of the shielding positioning groove 108 and the shielding accommodating groove 106, in the present embodiment, the surface of the shielding positioning element 123 is attached to the surface of the shielding positioning groove 108 parallel to the upper surface 100 of the plastic body 10.

In summary, the present application provides an electrical connector, which effectively shields electromagnetic interference generated by the electrical connector body and effectively prevents signal crosstalk between a plurality of electrical connector bodies by grounding the metal shielding body in the shielding member and the metal housing; simultaneously, the insulating layer is arranged on the shielding piece, the length of an electric crawling path is effectively increased, and the electric connection terminal of the electric connector has good pressure resistance and meets the pressure resistance requirement of the current electric connector terminal. When the distance between the electric connector terminal of the electric connector and the metal shell is shortened, the electric connection terminal of the electric connector can maintain good pressure resistance, and along with the improvement of the pressure resistance, the electric connector of the application can also have the characteristic of lightning protection.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. An electrical connector, comprising:

the shielding piece accommodating groove is formed in the plastic body and is positioned between every two adjacent accommodating grooves;

the plurality of electric connector bodies are respectively arranged in the corresponding accommodating grooves;

the shielding pieces are respectively arranged in the corresponding shielding piece accommodating grooves and comprise metal shielding bodies and insulating layers, and the insulating layers are arranged on the surfaces, facing the side walls of the shielding piece accommodating grooves, of the metal shielding bodies;

and the metal shell is arranged on the plastic body, and the metal shielding body exposed out of the insulating layer is connected with the metal shell and is grounded.

2. The electrical connector of claim 1, wherein the insulating layer is formed on the metal shield body by spraying or plating.

3. The electrical connector of claim 1, wherein the shield receiving groove has two receiving openings, and the two receiving openings are respectively located on two opposite surfaces of the plastic body.

4. The electrical connector of claim 1, wherein the plastic body has a shield positioning groove located above and in communication with the shield receiving groove, the shield having a shield positioning element located in the shield positioning groove when the shield is disposed in the shield receiving groove.

5. The electrical connector as claimed in claim 4, wherein the extending direction of the shielding member positioning groove is parallel to the extending direction of the shielding member receiving groove, and when the shielding positioning member is located in the shielding member positioning groove, the shielding positioning member abuts against a sidewall of the shielding member positioning groove perpendicular to the extending direction of the shielding member receiving groove.

6. The electrical connector of claim 1, wherein each of the receiving slots extends in a direction parallel to the direction of extension of the shield receiving slot, each of the receiving slots includes an electrical connector body receiving slot and a mating slot, the mating slot is in communication with the electrical connector body receiving slot, each of the electrical connector bodies has an electrical connection portion and a mating portion, the mating portion is disposed in the mating slot, and the electrical connection portion is disposed in the electrical connector body receiving slot.

7. The electrical connector of claim 6, wherein the electrical connector body receiving cavity has an insertion opening that is perpendicular to a direction of extension of the receiving cavity.

8. The electrical connector of claim 7, wherein the electrical connector body receiving pocket further has a terminal opening parallel to a direction of extension of the receiving pocket and communicating with the insertion opening.

9. The electrical connector as claimed in claim 7, wherein the plastic body further has a plurality of electrical connector body positioning notches, each of the electrical connector body positioning notches is communicated with a corresponding electrical connector body receiving slot, an extending direction of the electrical connector body positioning notch is parallel to an extending direction of the receiving slot, each of the electrical connector bodies has a positioning member, and when each of the electrical connector bodies is disposed in the corresponding receiving slot, the positioning member is disposed in the electrical connector body positioning notch and abuts against a sidewall of the electrical connector body positioning notch perpendicular to the extending direction of the receiving slot.

10. The electrical connector of claim 9, wherein each of the electrical connector body positioning notches has a width at an end thereof proximate to the insertion opening that is greater than a width at an end thereof distal to the insertion opening.

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