CN214754358U

CN214754358U - Electric connector

Info

Publication number: CN214754358U
Application number: CN202121236415.0U
Authority: CN
Inventors: 史春和; 孙宏伟; 任正旭
Original assignee: Lixun Precision Components Suzhou Co ltd
Current assignee: Lixun Precision Components Suzhou Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2021-11-16
Anticipated expiration: 2031-06-03
Also published as: TWM618346U

Abstract

The electric connector comprises an insulating body, a first terminal group, a second terminal group, a metal shell and an elastic sheet, wherein the first terminal group and the second terminal group are respectively arranged on the top surface and the bottom surface of the insulating body, the metal shell coats the insulating body, the first terminal group and the second terminal group, one end of the elastic sheet is welded with the metal shell, and the other end of the elastic sheet extends into the metal shell from a corresponding through hole, so that the elastic sheet is controlled to move to the outer side of the metal shell through the through hole. This electric connector is connected the shell fragment and metal casing's the outside and extend to metal casing in through-hole for the shell fragment can be through the through-hole at metal casing's inside and outside elastic movement satisfying anti-interference shielding under the prerequisite, thereby can avoid the problem that shell fragment elasticity became invalid, has improved electric connector's life.

Description

Electric connector

Technical Field

The utility model relates to an electronic components technical field, concretely relates to electric connector.

Background

USB-C is called USB Type-C interface entirely, comprises Type-C plug and Type-C socket. When the Type-C socket generally uses a metal injection molded part as the housing, there is not enough space for assembling the elastic sheet for preventing Electromagnetic Interference (EMI), which results in difficult assembling operation of the elastic sheet and low yield of the socket. Meanwhile, when the elastic sheet is assembled in the shell, due to the limitation of the internal space, the elastic sheet is easy to rebound and lose efficacy and permanently deform, so that the elastic sheet loses efficacy, and the interference shielding effect of the socket is reduced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an electric connector has solved the problem that shell fragment and shell equipment are difficult and elasticity easily become invalid through the structure that changes the shell fragment and with the connected mode of shell.

An embodiment of the utility model provides an electric connector, electric connector includes:

an insulating body;

the first terminal set and the second terminal set are respectively arranged on the top surface and the bottom surface of the insulating body;

the insulating body drives the first terminal group and the second terminal group to be inserted into the metal shell from one side of the metal shell, and the metal shell comprises a plurality of through holes;

and one end of each elastic sheet is welded with the metal shell, and the other end of each elastic sheet extends into the metal shell from the corresponding through hole.

Furthermore, the metal shell further comprises a plurality of grooves formed by sinking from outside to inside, the grooves are respectively positioned on one side of the corresponding through hole, the grooves are communicated with the through hole in the lateral direction, and one end of the elastic sheet is welded in the grooves.

Furthermore, the elastic sheet comprises a connecting part and an elastic part which are integrally formed, the connecting part is attached to the groove, the elastic part bends towards the inner side of the metal shell to form a V-shaped structure, and the V-shaped structure extends into the metal shell from the corresponding through hole.

Furthermore, a moving gap is formed between the free end of the elastic part and one side, back to the groove, of the through hole, and the bending part of the V-shaped structure is a transition arc.

Further, a first cavity and a second cavity are respectively formed between the insulating body and the top and the bottom of the metal shell;

the through holes and the grooves are respectively formed in the top of the metal shell and the bottom of the metal shell, and the through holes are respectively communicated with the first cavity and the second cavity.

Further, the metal shell comprises a clamping table, and the clamping table extends from the inner wall of the metal shell to the middle for a preset distance;

the insulation body comprises a first insulation part and a second insulation part, wherein the first insulation part is positioned on one side of the second insulation part;

the first insulating part of the insulating body penetrates through the clamping tables and is clamped with the clamping tables through the second insulating part.

Furthermore, the electric connector also comprises a metal connecting sheet, and the metal connecting sheet comprises a clamping plate and a buckling plate;

the first insulating part is provided with a clamping plate groove corresponding to the clamping plate, the second insulating part is provided with a buckling groove connected with the buckling plate in a buckling mode, two sides of the clamping plate are welded with the first terminal group and/or the second terminal group, and the top of the buckling plate is welded with the metal shell.

Furthermore, two side wings are further arranged on two sides of the metal shell, the two side wings extend to one side of the metal shell along the insertion direction of the insulating body, and the second insulating part is located between the two side wings.

Furthermore, the electrical connector further comprises a spacer which is formed by injection molding with the insulating body, and the spacer is arranged between the first terminal group and the second terminal group at intervals.

Furthermore, the isolation sheet comprises an integrally formed isolation main body part, two lateral isolation parts and two extension parts, the isolation main body part is arranged between the first terminal group and the second terminal group in an isolation mode, the two lateral isolation parts extend out of two sides of the first insulation part and wrap the side edges of the first insulation part, and the two extension parts extend out of two sides of the second insulation part and are connected with the two side wings respectively.

The electric connector of this embodiment includes insulator, first terminal group, second terminal group, metal casing and shell fragment, and wherein, first terminal group and second terminal group set up respectively on insulator's top surface and bottom surface, then insert in the metal casing from one side of metal casing, with the one end and the metal casing welding of shell fragment, the other end stretches into in the metal casing from the through-hole that corresponds to make the shell fragment controlled can move to the outside of metal casing through the through-hole. This electric connector is connected the shell fragment and metal casing's the outside and extend to in the metal casing through the through-hole for the shell fragment can be through the through-hole at metal casing's inside and outside elasticity removal under the prerequisite that satisfies anti-interference shielding, and so as to avoid the problem that shell fragment elasticity became invalid, has improved electric connector's life, and the stability when promoting the electric connector plug.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of an electrical connector according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of an electrical connector according to an embodiment of the present invention;

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

fig. 4 is an assembly structure diagram of the insulation body, the isolation sheet and the terminal set according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a metal shell according to an embodiment of the present invention.

Description of reference numerals:

1-an insulating body; 11-a first insulating portion; 12-a second insulating portion; 13-a card slot; 14-a snap-fit groove; 2-a first terminal set; 3-a second terminal set; 4-a metal housing; 41-through holes; 42-a groove; 43-a cassette; 44-flank; 5-a spring plate; 51-a connecting portion; 52-an elastic portion; 6-a spacer; 61-a spacer body portion; 62-lateral separation; 63-an extension; 7-metal connecting sheet; 71-card board; 72-buckling plates.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Meanwhile, it should be understood that, in the following description, a "circuit" refers to a conductive loop constituted by at least one element or sub-circuit through electrical or electromagnetic connection. When an element or circuit is referred to as being "connected to" another element or element/circuit is referred to as being "connected between" two nodes, it may be directly coupled or connected to the other element or intervening elements may be present, and the connection between the elements may be physical, logical, or a combination thereof. In contrast, when an element is referred to as being "directly coupled" or "directly connected" to another element, it is intended that there are no intervening elements present.

Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Fig. 1-5 are schematic structural views of the electrical connector of the present embodiment. The electric connector is used for butt-joint matching with a corresponding connector so as to realize information transmission or current transmission. The electric connector is a female end connector and used for being connected with a male end connector in a clamped mode to achieve charging.

As shown in fig. 1-3, the electrical connector includes an insulative housing 1, a first terminal set 2, a second terminal set 3, a metal shell 4, and a plurality of resilient tabs 5 for preventing Electromagnetic Interference (EMI). The first terminal group 2 and the second terminal group 3 are respectively arranged on the top surface and the bottom surface of the insulating body 1, and the metal shell 4 covers the outer sides of the insulating body 1, the first terminal group 2 and the second terminal group 3 to form a socket. In the present embodiment, the insulating body 1 and the first terminal set 2 and the second terminal set 3 thereon are tongue-shaped in the socket for mating with an external connector.

The insulating body 1 comprises a first insulating portion 11 and a second insulating portion 12, the first insulating portion 11 being located on one side of said second insulating portion 12, as shown in fig. 3. The first insulating part 11 and the second insulating part 12 are formed by injection molding together, and the whole structure is good. The first terminal group 2 and the second terminal group 3 are press-formed based on the material tape. The first terminal group 2 and the second terminal group 3 are integrally injection-molded with the insulating body 1, so that the first terminal group 2 and the second terminal group 3 are firmly fixed on the insulating body 1, and the positions and stability of a plurality of terminals are ensured. The first terminal set 2 and the second terminal set 3 each include a plurality of connection terminals for connection with connection terminals of a mating connector.

In the present embodiment, the first contact portions of the first terminal group 2 are exposed on the upper surface of the first insulating portion 11 and arranged in a row, and the first solder portions of the first terminal group 2 are exposed on the upper surface of the second insulating portion 12 and arranged in a row. The second contact portions of the second terminal group 3 are exposed on the lower surface of the first insulating portion 11 and arranged in a row, the second solder tail portions of the second terminal group 3 are exposed on the upper surface of the second insulating portion 12 and arranged in a row, and the second contact portions are closer to the outer side of the second insulating portion 12 than the first solder tail portions. The first terminal set 2 and the second terminal set 3 do not interfere with each other. The first contact part of the first terminal set 2 and the second contact part of the second terminal set 3 form an exposed upper side surface and a lower side surface for electrical plug connection. The first tin foot part and the second tin foot part are electrically connected with a power supply through wires.

After the first terminal set 2 and the second terminal set 3 are integrally injection-molded with the insulating body 1, the first terminal set and the second terminal set are inserted into the metal housing 4 from one side of the metal housing 4, so that the first insulating portion 11 is fixed in the metal housing 4, and the second insulating portion 12 is located outside the metal housing 4. In the present embodiment, the thickness of the second insulating portion 12 is greater than the thickness of the first insulating portion 11, and the connection of the first insulating portion 11 and the second insulating portion 12 forms a connection step by which the insulating body 1 is positioned at a prescribed position of the metal shell 4.

The metal housing 4 includes a catch 43, as shown in fig. 5. Wherein, the clamping table 43 extends a predetermined distance from the inner wall of the metal shell 4 to the middle, so that a through hole communicated with the inner cavity of the metal shell 4 is formed in the middle of the clamping table 43. Specifically, the catch 43 is close to one side of the metal case 4. The first insulating portion 11 of the insulating body 1 penetrates through the through hole of the clamping table 43 and extends into the metal shell 4, and the connecting step (the side surface of the second insulating portion 12) is abutted with the clamping table 43, so that the second insulating portion 12 is limited at the outer side of the metal shell 4.

The chuck 43 may be ring-shaped. The ring shape is a structure extending toward the center according to the shape of the inner wall of the metal case 4. For example, when the inner wall of the metal shell 4 forms a square structure, the clamping platform 43 has a square ring shape. When the inner wall of the metal shell 4 forms a circular structure, the clamping platform 43 is circular. In this embodiment, the metal housing 4 has a square structure. The metal shell 4 may include two clamping platforms 43, and the two clamping platforms 43 extend from two sides of the metal shell 4 towards each other, as shown in fig. 5.

After the first insulating portion 11 extends into the metal shell 4, the inner cavity of the metal shell 4 is divided into two cavities. That is, a first cavity is formed between the first insulating portion 11 and the top of the metal shell 4, and a second cavity is formed between the first insulating portion 11 and the bottom of the metal shell 4, as shown in fig. 2.

In particular, the metal casing 4 also comprises two lateral wings 44, as shown in fig. 1. Two side wings 44 are symmetrically arranged on both sides of the metal shell 4. While the two side wings 44 also extend toward the rear side of the metal case 4 to be positioned at both sides of the second insulating portion 12, respectively. That is, the two side wings 44 extend to the outside of the metal shell 4 along the direction of inserting the insulating body 1 into the metal shell 4, as shown in fig. 1.

The electrical connector further comprises a spacer 6, as shown in fig. 2. The isolation sheet 6 is arranged between the first terminal group 2 and the second terminal group 3 and used for shielding signal transmission between the two groups of terminals, so that crosstalk generated by the signal terminals in the signal transmission process is reduced, and the crosstalk is improved.

Specifically, the spacer 6 includes an integrally formed spacer main body portion 61, two lateral spacer portions 62, and two extension portions 63, as shown in fig. 3. The isolating main body part 61 is located in the insulating body 1 and is spaced between the first terminal group 2 and the second terminal group 3. Two lateral isolation portions 62 extend from two sides of the first insulating portion 11 and then respectively fit and wrap the side edges of the first insulating portion 11, and two extension portions 63 extend from two sides of the second insulating portion 12 and are respectively connected with the two side wings 44, as shown in fig. 1 and 4.

The isolation main body portion 61 is in communication with the ground terminals of the first terminal set 2 and the second terminal set 3 in the insulating housing 1, and is in communication with the two side wings 44 of the metal shell 4 through the two extending portions 63, so that the grounding area is increased, and a better grounding effect and a better signal crosstalk shielding effect are obtained.

Wherein the spacer 6 may be formed by press molding. The spacer 6, the first terminal set 2, the second terminal set 3 and the insulating body 1 are integrally formed by injection molding and then assembled with the metal shell 4 to form an electrical connector.

The metal housing 4 further includes a plurality of through holes 41, as shown in fig. 5. The through holes 41 are respectively arranged at the top and the bottom of the metal shell 4 and are respectively communicated with the inner cavity of the metal shell 4. After the isolating sheet 6, the first terminal group 2, the second terminal group 3 and the insulating body 1 are connected with the metal shell 4 through being molded into a whole, the first insulating part 11 divides the inner cavity of the metal shell 4 into two parts to form a first cavity and a second cavity which are arranged up and down. The first terminal group 2 is located in the first cavity, and the second terminal group 3 is located in the second cavity. The plurality of through holes 41 are respectively communicated with the first cavity or the second cavity.

The number of the elastic sheets 5 is the same as that of the through holes 41. One end of each elastic sheet 5 is welded and fixed with the outer side of the metal shell 4, and the other end of each elastic sheet extends into the first cavity or the second cavity in the metal shell 4 from the corresponding through hole 41, as shown in fig. 2. The assembly operation of the elastic sheet 5 and the metal shell 4 is simple, the assembly of the electric connector is convenient, and the production efficiency is improved. Furthermore, the free end of the elastic sheet 5 can be controlled to move in the corresponding cavity and the through hole 41, so that the elastic sheet 5 has enough moving space, the probability of elastic failure of the elastic sheet 5 is reduced, and the service life of the electric connector is prolonged.

Further, the metal shell 4 further includes a plurality of grooves 42 formed by recessing from outside to inside, as shown in fig. 3 and 5. A plurality of grooves 42 are respectively positioned at the top and bottom of the metal housing 4, and the number of the grooves 42 is the same as that of the through holes 41. The outward-inward recess means that when the groove 42 is located at the top of the metal shell 4, the groove 42 is formed by the downward recess of the top of the metal shell 4; when the groove 42 is located at the bottom of the metal shell 4, the groove 42 is formed by the bottom of the metal shell 4 being depressed upward.

Each groove 42 is located on one side of the corresponding through hole 41 and is in lateral communication with the through hole 41, as shown in fig. 5. One end of the elastic sheet 5 is welded in the groove 42, so that the elastic sheet 5 can be positioned, the elastic sheet 5 can be well moved in the through hole 41 and the corresponding cavity when being fixed on the metal shell 4, the electromagnetic wave is effectively prevented from being exposed, and the electromagnetic shielding effect of the electric connector is further enhanced.

Each of the resilient pieces 5 includes a connecting portion 51 and an elastic portion 52 which are integrally formed, as shown in fig. 3. The connecting portion 51 is parallel to the groove 42, and the connecting portion 51 is attached to the bottom of the groove 42 and fixedly connected with the metal shell 4 in a welding manner. The elastic portion 52 is bent toward the inner side of the metal shell 4 to form a V-shaped structure, and the V-shaped structure extends into the metal shell 4 from the corresponding through hole 41, as shown in fig. 2. The free end of the elastic part 52 has a moving clearance to the side of the through hole 41 opposite to the groove 42, so that the elastic part 52 can be controlled to move towards the through hole 41. When the male connector is plugged with the electrical connector of the present embodiment, the male connector presses the elastic portion 52, and the elastic portion 52 moves into the through hole 41, thereby achieving the shielding effect of electromagnetic interference. The elastic part 52 is arranged in a V-shaped structure, so that the insertion and extraction of the butted connector are facilitated, and the damage to the elastic part 52 is avoided. Preferably, the bending point of the V-shaped structure is a transition arc, which further improves the service life of the elastic portion 52.

In the embodiment as shown in fig. 1, the metal housing 4 includes 4 through

holes

41, 4

grooves

42, and 4 resilient pieces 5. Wherein, 2 through

holes

41 and 2 grooves 42 are arranged on the top of the

metal shell

4, and 2 through

holes

41 and 2 grooves 42 are arranged on the bottom of the metal shell 4. 2 through-holes 41 communicate with first cavity respectively, 2 through-holes 41 communicate with the second cavity respectively, and in the elastic component 52 of 2 shell fragment 5 stretched into the first cavity, the elastic component 52 of 2 shell fragment 5 stretched into the second cavity, can contact with the metal casing of the connector of butt joint simultaneously, played fine shielding effect, improved and crosstalked, satisfied high frequency, high-speed requirement.

In this embodiment, the first insulating portion 11 further includes a card slot 13, and the second insulating portion 12 is provided with a fastening slot 14, as shown in fig. 3. The card slot 13 is located at a position of the first insulating portion 11 close to the second insulating portion 12, and the fastening slot 14 is located at a position of the second insulating portion 12 close to the first insulating portion 11. The length of the buckling groove 14 is smaller than that of the clamping plate groove 13, and the buckling groove is located in the middle of the second insulating portion 12 along the width direction, so that the limit connection between the insulating body 1 and the metal shell 4 can be prevented from being influenced.

In a preferred embodiment, the first insulating portion 11 includes two card slots 13, and the two card slots 13 are respectively disposed on the top surface and the bottom surface of the first insulating portion 11. The second insulating portion 12 is provided with two fastening grooves 14, and the two fastening grooves 14 are respectively disposed on the top surface and the bottom surface of the second insulating portion 12. After the first terminal set 2 and the second terminal set 3 are injection molded with the insulating body 1 as a whole, the middle parts of the ground terminals of the first terminal set 2 and the ground terminals of the second terminal set 3 are exposed in the two card slots 13.

The electrical connector further comprises a metal connecting piece 7, as shown in fig. 2-4. The metal connecting sheet 7 includes a clamping plate 71 and a buckling plate 72 connected as a whole. The clamping plate 71 is attached in the clamping plate groove 13, two sides of the clamping plate 71 are attached above the grounding terminals of the corresponding terminal group, and the two sides are connected in a welding mode. The fastening plate 72 extends from one side of the card 71 and is fastened in the corresponding fastening slot 14 to connect with the insulating body 1. When the metal shell 4 covers the outer side of the insulating body 1, the top surface of the buckling plate 72 is attached to the metal shell 4 and connected by welding, so that the connection stability among the metal shell 4, the insulating body 1 and the metal connecting sheet 7 is improved. The metal connecting sheet 7 of the electric connector is conducted with the grounding terminal of the terminal group, and the metal shell 4 is conducted with the metal connecting sheet 7, so that a good shielding effect and a good grounding effect can be achieved, crosstalk is improved, and high-frequency and high-speed requirements are met. When the electric connector is connected with a male connector, the metal connecting sheet 7 can be clamped with the elastic sheet of the male connector, and then the functions of positioning and electromagnetic shielding interference can be achieved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An electrical connector, comprising:

an insulating body (1);

the first terminal group (2) and the second terminal group (3) are respectively arranged on the top surface and the bottom surface of the insulating body (1);

a metal housing (4), the metal housing (4) encasing the insulator body (1), the first terminal group (2), and the second terminal group (3), the metal housing (4) including a plurality of through holes (41);

the spring plates (5) are welded to the metal shell (4) at one ends, and the other ends of the spring plates (5) extend into the metal shell (4) from the corresponding through holes (41).

2. The electrical connector according to claim 1, wherein the metal shell (4) further comprises a plurality of grooves (42) formed by being recessed from outside to inside and respectively located at one side of the corresponding through holes (41), the grooves (42) are laterally communicated with the through holes (41), and one end of the spring piece (5) is welded in the grooves (42).

3. The electrical connector according to claim 2, wherein the resilient piece (5) comprises a connecting portion (51) and an elastic portion (52) which are integrally formed, the connecting portion (51) is attached to the groove (42), the elastic portion (52) is bent towards the inner side of the metal shell (4) to form a V-shaped structure, and the V-shaped structure extends into the metal shell (4) from the corresponding through hole (41).

4. The electrical connector according to claim 3, wherein the free end of the elastic part (52) has a moving clearance to the side of the through hole (41) facing away from the groove (42), and the bending point of the V-shaped structure is set as a transition arc.

5. The electrical connector according to claim 2, characterized in that a first cavity and a second cavity are respectively formed between the insulating body (1) and the top and bottom of the metal shell (4);

the through holes (41) and the grooves (42) are respectively arranged at the top of the metal shell (4) and the bottom of the metal shell (4), and the through holes (41) are respectively communicated with the first cavity and the second cavity.

6. The electrical connector of claim 1, wherein the metal shell (4) comprises a catch (43), the catch (43) extending a predetermined distance medially from an inner wall of the metal shell (4);

the insulation body (1) comprises a first insulation part (11) and a second insulation part (12), wherein the first insulation part (11) is positioned on one side of the second insulation part (12);

the first insulating part (11) of the insulating body (1) penetrates through the clamping tables (43) and is clamped with the clamping tables (43) through the second insulating part (12).

7. The electrical connector of claim 6, further comprising a metal connector strip (7), the metal connector strip (7) comprising a snap plate (71) and a snap plate (72);

the first insulating part (11) is provided with a clamping plate groove (13) corresponding to the clamping plate (71), the second insulating part (12) is provided with a buckling groove (14) connected with the buckling plate (72) in a buckling mode, two sides of the clamping plate (71) are welded with the first terminal group (2) and/or the second terminal group (3), and the top of the buckling plate (72) is welded with the metal shell (4).

8. The electrical connector according to claim 6, wherein two side wings (44) are further provided on two sides of the metal shell (4), the two side wings (44) extend to one side of the metal shell (4) along the insertion direction of the insulating body (1), and the second insulating portion (12) is located between the two side wings (44).

9. The electrical connector of claim 8, further comprising a spacer (6) injection molded with the housing (1), the spacer (6) being spaced between the first terminal set (2) and the second terminal set (3).

10. The electrical connector of claim 9, wherein the spacer (6) comprises an integrally formed spacer main body portion (61), two lateral spacer portions (62) and two extension portions (63), the spacer main body portion (61) is spaced between the first terminal set (2) and the second terminal set (3), the two lateral spacer portions (62) extend from two sides of the first insulating portion (11) and wrap the sides of the first insulating portion (11), and the two extension portions (63) extend from two sides of the second insulating portion (12) and are respectively connected to the two side wings (44).