CN216121049U - Electrical connector - Google Patents

Abstract

The utility model relates to an electric connector, which comprises a terminal module, a middle clamp, an inner shell and an outer shell, wherein: the terminal module comprises a plurality of grounding terminals and signal terminals which are arranged along a first direction, and a middle clamp is connected with the grounding terminals in series and is spaced from the signal terminals; the middle clamp is arranged in the inner shell, and the outer side wall of the middle clamp is abutted against the inner wall of the inner shell; the outer shell cover is arranged on the outer side of the inner shell, and the inner wall of the outer shell is abutted to the outer wall of the inner shell. In the electric connector, the grounding terminal in the terminal module is connected to the middle clamp in series, the outer side wall of the middle clamp is limited to abut against the inner wall of the inner shell, the inner wall of the outer shell is limited to abut against the outer wall of the inner shell, so that the outer shell, the inner shell, the middle clamp and the grounding terminal form a whole, and the outer shell and the inner shell are connected in series, so that the outer shell, the inner shell, the middle clamp and the grounding terminal are connected in series, the integral anti-crosstalk property of the electric connector is improved, the occurrence of signal transmission distortion is reduced, and the influence on data transmission is reduced.

Description

Electrical connector

Technical Field

The utility model relates to the technical field of communication, in particular to an electric connector.

Background

With the development of science and technology and the continuous update of communication technology, electronic products are gradually popularized in life. The electrical connector is a main adaptor with the advantages of rapidness, plug and play, convenience in use and installation and the like, and the TYPE C electrical connector is widely applied to various electronic terminal devices as a connector capable of being plugged in forward and backward.

At present, ground terminal in TYPE C electric connector, well clamping piece, all there is not the relation of connection between inner shell and the shell, just connect in series through the PCB board together, the terminal module, well clamping piece and inner shell and the shell of ground connection pass through reflow soldering melting tin cream welding on the PCB board, then concatenate through the PCB board, but this kind of mode of setting leads to the electric connector to take place to crosstalk very easily, the surplus of anti-crosstalk characteristic is less, in mass production, the high frequency characteristic that can not guarantee the product satisfies USB4 GEN 3's standard, lead to the high frequency characteristic of electric connector relatively poor, signal transmission is serious distortion, thereby influence data transmission.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide an electrical connector to solve the problem that crosstalk of the electrical connector is large and data transmission is affected.

An electrical connector comprising a terminal module, a middle clip, an inner housing and an outer housing, wherein:

the terminal module comprises a plurality of grounding terminals and signal terminals which are arranged along a first direction, and the middle clamp is connected with the grounding terminals in series and is spaced from the signal terminals;

the middle clamp is arranged inside the inner shell, and the outer side wall of the middle clamp is abutted to the inner wall of the inner shell;

the outer shell covers the outer side of the inner shell, and the inner wall of the outer shell is abutted to the outer wall of the inner shell.

In the above-described electrical connector, by connecting the ground terminals in the terminal modules in series to the center clip, so that the terminals and the center clip are connected in series, by arranging the middle clamp inside the inner shell, so that the terminal module and the middle clamp are installed in the shell, and the outer side wall of the middle clamp is limited to abut against the inner wall of the inner shell, so that the middle clamp and the inner shell are connected in series, by covering the outer shell on the outer side of the inner shell, so that the outer shell covers the inner shell, the middle clamp and the grounding terminal, and the outer shell, the inner shell, the middle clamp and the grounding terminal form a whole by limiting the abutting of the inner wall of the outer shell and the outer wall of the inner shell, and the outer shell and the inner shell are connected together in series, therefore, the outer shell, the inner shell, the middle clamp and the grounding terminal are connected in series, the overall anti-crosstalk characteristic of the electric connector is improved, the signal transmission distortion is reduced, and the influence on data transmission is reduced.

In one embodiment, two side walls of the middle clip along the first direction are in interference fit with the inner shell.

In above-mentioned electric connector, press from both sides wall along first direction all with inner shell interference fit in through the definition to the both sides wall that makes the centre gripping all with inner shell looks butt, press from both sides and inner shell in can establishing ties better, and make holistic connection stability better.

In one embodiment, the middle clip includes a plate body covering the terminal module in the first direction, and at least one protrusion protruding from a sidewall of the middle clip along the first direction.

In the electrical connector, the structure of the middle clamp is defined as the plate body and the protrusion, and the arrangement direction of the protrusion is defined, so that the butt joint between the middle clamp and the inner shell can be conveniently realized.

In one embodiment, a groove matched with the protrusion is formed on the inner wall of the inner shell, and the protrusion is clamped in the groove.

In above-mentioned electric connector, through forming the recess on injecing the inner shell, the protruding joint is in the recess to can guarantee that the connection stability between well clamp and the inner shell is better.

In one embodiment, a surface of the protrusion away from the plate body is a first plane, and the first plane is in contact with an inner wall of the inner shell.

In the above-mentioned electrical connector, by defining the plane where the projection and the inner wall are in contact, the inner shell and the middle clamp can be connected in series well.

In one embodiment, the cross section of the protrusion is cylindrical, trapezoidal or hemispherical. Of course, the shape of the protrusion is not limited to this, and other configurations may be adopted as long as the requirements are satisfied.

In one embodiment, the outer shell and the inner shell are connected by at least one set of snap assemblies.

In the electric connector, the buckle assembly is arranged between the outer shell and the inner shell in a limited mode, so that the inner shell and the outer shell can be conveniently fixed and connected in series.

In one embodiment, the fastening assembly includes a hook disposed on one of an inner surface of the outer shell and an outer surface of the inner shell, and a slot extending through the other of the outer shell and the inner shell.

In the electric connector, the clamping hook in the limited clamping component is arranged on one of the outer shell and the inner shell, and the clamping groove is arranged on the other of the outer shell and the inner shell, so that the clamping connection can be conveniently realized.

In one embodiment, each of the ground terminals is fixed to the center clip by welding. Of course, the fixing and series connection between the terminal and the middle clip are not limited to this, and may be in other forms that can satisfy the requirements.

In one embodiment, the terminal module forms two rows of terminal assemblies arranged oppositely, the two rows of terminal assemblies include multiple sets of high-frequency terminal pairs, each set of high-frequency terminal pairs includes a first terminal and a second terminal arranged oppositely, a first gap is formed in an end of the first terminal, a second gap is formed in an end of the second terminal, and projections of the first gap and the second gap on the middle clamp are arranged in a staggered mode.

In the electrical connector, the projection of the first notch and the projection of the second notch on the middle clamp are limited to be arranged in a staggered mode, so that the crosstalk of a high-frequency terminal pair can be reduced, and the high-frequency characteristic is improved.

Drawings

FIG. 1 is an exploded view of an electrical connector according to one embodiment of the present invention;

FIG. 2 is a right side view of the electrical connector in accordance with one embodiment of the present invention;

fig. 3 is a front view of a module composed of a terminal module and a middle clip according to an embodiment of the present invention;

fig. 4 is a right side view of a module formed by the terminal module and the middle clip according to an embodiment of the present invention;

fig. 5 is a front view of a module composed of a terminal module, a middle clip and an inner shell according to an embodiment of the utility model;

fig. 6 is a right side view of a module composed of the terminal module, the middle clip and the inner housing according to an embodiment of the present invention.

Reference numerals:

10. an electrical connector;

100. middle clamping; 110. a plate body; 120. a protrusion; 121. a first plane;

200. a terminal module; 210. a terminal assembly; 211. a ground terminal; 220. a pair of high-frequency terminals; 221. a first terminal; 2211. a first notch; 222. a second terminal; 2221. a second notch;

300. an inner shell;

400. a housing;

500. a buckle assembly; 510. a hook is clamped; 520. a card slot;

x, the first direction.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical scheme provided by the embodiment of the utility model is described below by combining the accompanying drawings.

As shown in fig. 1 and fig. 2, the present invention provides an electrical connector 10, where the electrical connector 10 is a USB TYPE C connector, and is applied in an electronic device for connecting a chip on a PCB in the electronic device for data transmission. The electrical connector 10 includes a middle clip 100, a terminal module 200, an inner housing 300, and an outer housing 400, wherein:

the terminal module 200 includes a plurality of terminals, including a ground terminal 211 and a signal terminal, the ground terminal 211 is serially disposed on the middle clip 100, the signal terminal is spaced apart from the middle clip 100, and the ground terminal 211 and the signal terminal are arranged along the first direction X; the middle clip 100 is arranged inside the inner shell 300, and the outer side wall of the middle clip 100 abuts against the inner wall of the inner shell 300; the outer case 400 is housed outside the inner case 300, and the inner wall of the outer case 400 abuts against the outer wall of the inner case 300.

In the above-mentioned electrical connector 10, the anti-crosstalk property of the overall electrical connector 10 is improved by fixing the ground terminal 211 in the terminal module 200 to the center clip 100 so that the ground terminal 211 and the center clip 100 are connected in series, by disposing the center clip 100 inside the inner housing 300 so that the terminal module 200 and the center clip 100 are mounted in the housing, and by defining the outer side wall of the center clip 100 to abut against the inner wall of the inner housing 300 so that the center clip 100 and the inner housing 300 are connected in series, by housing the outer housing 400 outside the inner housing 300 so that the outer housing 400 covers the inner housing 300, the center clip 100 and the ground terminal 211, and by defining the inner wall of the outer housing 400 to abut against the outer wall of the inner housing 300 so that the outer housing 400, the inner housing 300, the center clip 100 and the ground terminal 211 form one body, while the outer housing 400 and the inner housing 300 are connected in series, the occurrence of signal transmission distortion is reduced, and the influence on data transmission is reduced.

In order to improve the connection stability of the center clip 100 and the inner case 300, in a preferred embodiment, as shown in fig. 1, 2, 3 and 4, both sidewalls of the center clip 100 along the first direction X are interference-fitted with the inner case 300.

In the electrical connector 10, by limiting the interference fit between the two side walls of the middle clip 100 along the first direction X and the inner housing 300, when the middle clip 100 is disposed inside the inner housing 300, the two opposite outer side walls of the middle clip 100 abut against the inner wall of the inner housing 300, so that the surface area of the middle clip 100 abutting against the inner housing 300 is large, on one hand, the middle clip 100 and the inner housing 300 can be connected in series well, so that the middle clip 100 and the inner housing 300 are in good contact, on the other hand, the connection stability of the middle clip 100 and the inner housing 300 can be good, and further, the connection stability of the electrical connector 10 as a whole is good. In a specific configuration, a side wall of the middle clip 100 may be in interference fit with the inner case 300, and both side walls of the middle clip 100 along the first direction X may be in interference fit with the inner case 300, and of course, the abutting form between the middle clip 100 and the inner case 300 is not limited thereto, and may be other forms that can meet the requirement.

The structure of the middle clip 100 has various forms, and in a preferred embodiment, as shown in fig. 1, 2, 3, 4, 5 and 6, the middle clip 100 includes a plate body 110 and at least one protrusion 120, the plate body 110 covers the terminal module 200 in a first direction X, and the protrusion 120 protrudes from a sidewall of the middle clip 100 along the first direction X.

In the electrical connector 10, the structure of the middle clip 100 is defined as the plate body 110 and the protrusion 120, so that the middle clip 100 can be manufactured more conveniently, when the electrical connector is specifically configured, the material of the middle clip 100 may be a metal material such as an aluminum plate, a copper plate, and a steel plate, the plate body 110 and the protrusion 120 may be an integrated structure, for example, the middle clip 100 may be formed by cutting, bending a sheet metal part, and the like, the plate body 110 and the protrusion 120 may also be a split structure, for example, the protrusion 120 may be welded on the side surface of the plate body 110. The terminal module 200 is covered in the first direction X by defining the plate body 110 such that the protrusions 120 protrude from the terminal module 200 in the first direction X to facilitate the coupling action between the center clip 100 and the inner case 300. The abutment between the middle clip 100 and the inner case 300 can be more conveniently achieved by defining the arrangement direction of the protrusions 120 to be protruded from the side walls of the middle clip 100 along the first direction X.

In order to further improve the connection stability between the middle clip 100 and the inner case 300, specifically, a groove is formed on the inner wall of the inner case 300, the contour of the groove matches with the protrusion 120, and the protrusion 120 is clamped in the groove.

In the electrical connector 10, by defining the groove formed on the inner housing 300 and defining the protrusion 120 to be able to be engaged in the groove, when the middle clip 100 is disposed inside the inner housing 300, an operator presses the middle clip 100 on the inner wall of the inner housing 300 by applying force, and when the protrusion 120 is engaged in the groove, the assembly between the middle clip 100 and the inner housing 300 is completed, the assembly process is simple and convenient, and the connection stability between the middle clip 100 and the inner housing 300 can be ensured to be good.

To further ensure contact between the center clip 100 and the inner case 300, specifically, as shown in fig. 3 and 4, the surface of the protrusion 120 away from the plate body 110 is a first plane 121, and the first plane 121 is in contact with the inner wall of the inner case 300.

In the electrical connector 10, by defining the plane where the protrusion 120 contacts the inner wall, the first sheet surface of the protrusion 120 contacts the inner wall of the inner housing 300, so that the contact area between the inner clip 100 and the inner wall of the inner housing 300 is large, the contact between the inner clip 100 and the inner housing 300 is good, and the inner clip 100 and the inner housing 300 can be connected in series well.

The protrusion 120 has various structural forms, and more particularly, the cross section of the protrusion 120 may be cylindrical, trapezoidal, or hemispherical. Of course, the shape of the protrusion 120 is not limited to this, and other configurations can be adopted as required, and the specific cross-sectional shape of the protrusion 120 can be determined according to the actual situation of the electrical connector 10.

In order to facilitate the series connection between the inner housing 300 and the outer housing 400, in a preferred embodiment, as shown in fig. 1 and fig. 5, the outer housing 400 and the inner housing 300 are connected by at least one set of snap assemblies 500, when the arrangement is specific, the number of the snap assemblies 500 may be one set, two sets, three sets or more than three sets, and the specific number of the snap assemblies 500 may be determined according to the actual situation of the electrical connector 10.

In the electrical connector 10, by defining the snap assembly 500 between the outer housing 400 and the inner housing 300, the fixing and the series connection between the inner housing 300 and the outer housing 400 can be conveniently realized by the connection action of the snap assembly 500. In a specific arrangement, the connection manner between the inner shell 300 and the outer shell 400 is not limited to this, and other structural forms that can meet the requirement may also be adopted, for example, the connection between the inner shell 300 and the outer shell 400 may be realized through a concave-convex fit, and for example, the connection between the inner shell 300 and the outer shell 400 may also be realized through a threaded connection.

To facilitate the snap connection, specifically, as shown in fig. 1 and 5, the snap assembly 500 includes a snap 510 and a snap groove 520, the snap 510 is disposed on one of the inner surface of the outer shell 400 and the outer surface of the inner shell 300, and the snap groove 520 penetrates the other of the outer shell 400 and the inner shell 300.

In the electrical connector 10, the snap hooks 510 of the snap assembly 500 are defined to be disposed on one of the outer shell 400 and the inner shell 300, and the snap slots 520 are defined to be disposed on the other of the outer shell 400 and the inner shell 300, so that the snap connection can be conveniently realized. In a specific arrangement, the hooks 510 may be disposed on the inner surface of the outer shell 400, and correspondingly, the slots 520 penetrate through the sidewall of the inner shell 300; the hooks 510 may also be disposed on the outer surface of the inner case 300, and correspondingly, the slots 520 penetrate the sidewall of the outer case 400; when the number of the snap assemblies 500 is multiple, a portion of the hooks 510 is disposed on the inner surface of the outer shell 400, another portion of the hooks 510 is correspondingly disposed on the outer surface of the inner shell 300, and correspondingly, a portion of the slots 520 penetrates through the sidewall of the inner shell 300, and another portion of the slots 520 penetrates through the sidewall of the outer shell 400.

There are various fixing manners of the ground terminal 211 and the middle clip 100, and in a preferred embodiment, each ground terminal 211 is fixed to the middle clip 100 by welding, so that the fixing and the series connection between the ground terminal 211 and the middle clip 100 can be conveniently and quickly realized. Of course, the fixing and series connection between the ground terminal 211 and the center clip 100 is not limited to this, and may be in other forms that can satisfy the requirements.

To further reduce crosstalk, as shown in fig. 3, the terminal modules 200 are distributed in two rows of terminal assemblies 210, each row of terminal assemblies 210 having a plurality of terminals therein, the terminals being arranged along the first direction X. The two-row terminal assembly 210 includes a plurality of sets of high-frequency terminal pairs 220, each set of high-frequency terminal pairs 220 includes a first terminal 221 and a second terminal 222, the first terminal 221 and the second terminal 222 are oppositely disposed, a first gap 2211 is formed at an end of the first terminal 221, a second gap 2221 is formed at an end of the second terminal 222, and projections of the first gap 2211 and the second gap 2221 on the middle clip 100 are arranged in a staggered manner.

In the electrical connector 10, the first notches 2211 are formed at the ends of the first terminals 221 in one row of the terminal assemblies 210, the second notches 2221 are formed at the ends of the second terminals 222 in the other row of the terminal assemblies 210, and the projection misalignment arrangement of the first notches 2211 and the second notches 2221 on the middle clamp 100 is defined, so that the corresponding first terminals 221 and the corresponding second terminals 222 in the high-frequency terminal pair 220 are not arranged in an opposite manner, thereby reducing the crosstalk of the high-frequency terminal pair 220, improving the high-frequency characteristics, reducing the crosstalk of the two rows of the terminal assemblies 210, reducing the occurrence of signal transmission distortion, and reducing the influence on data transmission.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An electrical connector, comprising a terminal module, a middle clip, an inner housing and an outer housing, wherein:

the terminal module comprises a plurality of grounding terminals and signal terminals which are arranged along a first direction, and the middle clamp is connected with the grounding terminals in series and is spaced from the signal terminals;

the middle clamp is arranged inside the inner shell, and the outer side wall of the middle clamp is abutted to the inner wall of the inner shell;

the outer shell covers the outer side of the inner shell, and the inner wall of the outer shell is abutted to the outer wall of the inner shell.

2. The electrical connector of claim 1, wherein two sidewalls of the center clip along the first direction have an interference fit with the inner housing.

3. The electrical connector of claim 1, wherein the center clip includes a plate body covering the terminal module in the first direction and at least one protrusion protruding from a sidewall of the center clip along the first direction.

4. The electrical connector of claim 3, wherein a groove matching with the protrusion is formed on the inner wall of the inner housing, and the protrusion is clamped in the groove.

5. The electrical connector of claim 3, wherein a surface of the protrusion remote from the board body is a first flat surface, the first flat surface contacting an inner wall of the inner housing.

6. The electrical connector of claim 5, wherein the protrusion has a cross-section that is cylindrical, trapezoidal, or hemispherical.

7. The electrical connector of claim 1, wherein the outer housing and the inner housing are connected by at least one set of snap assemblies.

8. The electrical connector of claim 7, wherein the snap assembly comprises a snap disposed on one of an inner surface of the outer housing and an outer surface of the inner housing and a slot extending through the other of the outer housing and the inner housing.

9. The electrical connector of claim 1, wherein each of said ground terminals is solder-secured to said center clip.

10. The electrical connector of claim 9, wherein the terminal modules form two rows of terminal assemblies arranged oppositely, the two rows of terminal assemblies include multiple sets of high-frequency terminal pairs, each set of high-frequency terminal pairs includes a first terminal and a second terminal arranged oppositely, the end of the first terminal is opened with a first gap, the end of the second terminal is opened with a second gap, and projections of the first gap and the second gap on the middle clip are arranged in a staggered manner.

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