CN210489871U

CN210489871U - Electric connector and assembly thereof

Info

Publication number: CN210489871U
Application number: CN201920075297.6U
Authority: CN
Inventors: 张超; 张顺华
Original assignee: Shenzhen Electric Connector Technology Co Ltd
Current assignee: Shenzhen Electric Connector Technology Co Ltd
Priority date: 2019-01-17
Filing date: 2019-01-17
Publication date: 2020-05-08
Anticipated expiration: 2029-01-17

Abstract

An electrical connector and assembly thereof, including a plug connector and a receptacle connector, the plug connector comprising: the plug base body comprises a plug bottom wall, a plug side wall, a plug end wall and a notch part with an upward opening formed by encircling the plug bottom wall, the plug side wall and the plug end wall; the plug terminals are arranged and fixed on the plug side wall in two rows; the plug metal piece is coated on the end wall of the plug; the receptacle connector includes: a socket base including a socket bottom wall, a fitting projection projecting upward from the socket bottom wall, and an annular side portion between which an annular groove is formed; a plurality of socket terminals fixed to the annular side portion in two rows; socket metal fittings fixed at two ends of the annular side part in an opposite way and provided with socket guide parts for guiding the plug connectors to be plugged; and the socket side body piece is fixed on at least one side wall of the annular side part, and the side wall extends along the length direction of the socket connector. The utility model discloses have superior shielding effect and have good guide effect of inserting.

Description

Electric connector and assembly thereof

Technical Field

The present invention relates to an electrical connector and an assembly thereof, and more particularly to an electrical connector and an assembly thereof for connecting a circuit board to a circuit board.

Background

In order to meet the high requirement and narrow space limitation of the 5G era on the transmission speed of products, the existing solutions for various board-to-board connector assemblies with high-frequency transmission function mainly pay attention to whether superior high-frequency characteristics (such as shielding effect) and reliable structural strength can be ensured, including whether insertion guiding exists or not, some designs are too complicated, the overall strength of some products is weak, particularly, when the connector assemblies are assembled by male and female connectors in the using process, the connector assemblies are easily damaged, and more feasible technical solutions need to be found.

SUMMERY OF THE UTILITY MODEL

Accordingly, an object of the present invention is to provide an electrical connector assembly having excellent shielding effect and good insertion guiding.

The utility model discloses an electric connector combination piece, plug connector and socket connector including mutual gomphosis connection, plug connector and socket connector are used for welding respectively to circuit substrate, plug connector includes: the plug base body comprises a plug bottom wall, a plug side wall and a plug end wall, wherein the plug side wall is formed by upward and vertical extension of the plug bottom wall and extends along the length direction of the plug connector, the plug end wall extends along the width direction of the plug connector, and the plug bottom wall, the plug side wall and the plug end wall surround to form a notch part with an upward opening; the plug terminals are arranged and fixed on the plug side wall in two rows; the plug metal piece is coated on the end wall of the plug and is provided with a plug metal piece connecting plate part which is bent downwards and horizontally extends out of the plug base body;

the receptacle connector includes: the socket base body comprises a socket bottom wall, a jogged convex part formed by upwards protruding from the socket bottom wall and an annular side part forming an annular groove with the jogged convex part, wherein the annular groove is used as a plugging space for accommodating the plug connector; a plurality of socket terminals fixed to the annular side portion in two rows; socket metal fittings fixed at two ends of the annular side part in an opposite way, and socket guide parts for guiding the plug connectors to be plugged are arranged at two ends of the annular side part; the socket side body piece is fixed on at least one of two opposite side walls of the annular side part, and the two opposite side walls extend along the length direction of the socket connector. After the plug connector is in embedded butt joint with the socket connector, the plug terminals are in contact with the corresponding socket terminals for signal transmission.

Preferably, the number of the receptacle side members is two, each receptacle side member has a flat plate-shaped side body main portion and a side body connecting portion bent perpendicularly from the side body main portion and extending outside the receptacle base, and the side body main portions are disposed in parallel opposite to two opposite side walls of the annular side portion extending in the receptacle connector length direction.

Preferably, the socket side member is embedded in a side wall of the corresponding annular side portion extending along a length direction of the socket connector by insert molding.

Preferably, both ends of the annular groove are provided with through hole parts.

Preferably, the plug metal piece is a plate-shaped structure made of a metal sheet and fixed on the end wall of the plug through insert molding.

Preferably, the plug connector further comprises a plug inserting element fixed in the plug base body and located between the two rows of plug terminals, the plug inserting element extends along the length direction of the plug connector and comprises a plug main body part at least partially fixed in the plug base body; the socket connector further comprises a socket inserting piece, the socket inserting piece is fixed in the socket base body and located between the two rows of socket terminals, the socket inserting piece extends along the length direction of the socket connector, and the socket inserting piece comprises a socket main body portion, at least part of the socket main body portion is fixed in the plug base body in the socket base body.

Preferably, the plug body extends to form a plug abutting portion exposed outside the plug base, the socket body extends to form a socket abutting portion correspondingly matched, buckled and retained with the plug abutting portion, and the socket abutting portion is exposed in the engaging protrusion.

Preferably, one of the plug mating part and the socket mating part is elastically deformable in a direction perpendicular to the mating direction.

Preferably, at least two of the plug butting portion and the socket butting portion are respectively provided, and one of the plug butting portion and the socket butting portion is cantilevered in the butting direction.

Preferably, the socket engaging member is formed of a metal sheet by a bending process, and includes a socket engaging member connecting plate portion extending in a length direction of the socket connector, and the socket engaging portion is held on both sides of the plug engaging portion by elastic deformation.

Beneficial effects of the utility model

Through the setting, the utility model provides a corresponding metal lock direction that had both satisfied high frequency transmission and had been equipped with simultaneously on plug connector and socket connector avoids the lock to cause the product to damage, in reinforcing product structural strength, possesses good insertion and closes guide effect, is fit for being applied to the application scenario in small-size space.

Drawings

Fig. 1 is a schematic perspective view of an electrical connector and a component thereof according to a preferred embodiment of the present invention.

Fig. 2 is a perspective view of the electrical connector and the assembly thereof shown in fig. 1.

Fig. 3 is a partially exploded perspective view of the electrical connector and its assembly shown in fig. 1.

Fig. 4 is a perspective view of the electrical connector and assembly of fig. 3 from another perspective.

Fig. 5 is a cross-sectional view of the electrical connector and the assembly thereof after the plug connector and the receptacle connector are mated and mated.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" 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.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In this document, it is specified that the length direction of the electrical connector is a longitudinal direction, a direction in which a plug connector of the electrical connector is inserted into a receptacle connector, or a height direction of the electrical connector, i.e., a vertical direction (or a vertical direction), and a width direction of the electrical connector, i.e., a lateral direction; and the matching surface of the plug connector when being inserted into the socket connector is taken as the upper part or the bearing surface of the circuit board is taken as the upward horizontal datum plane for reference.

Referring to fig. 1 to 5, a preferred embodiment of the present invention is shown, and an assembly 00 of the present invention includes a plug connector 100 and a socket connector 200 capable of being engaged with each other and connected in a butt joint manner, wherein the plug connector 100 and the socket connector 200 are respectively and correspondingly welded to a circuit substrate (not shown). The plug connector 100 includes a plug base 110, a plug metal member 130 secured to and insulated from the plug base 110, a plug insert 140, and two rows of plug terminals 120. The receptacle connector 200 includes a receptacle base 210, two rows of receptacle terminals 220 and receptacle metal pieces 230 secured to and insulated from the receptacle base 210, a receptacle mating piece 240, and a receptacle side piece 250.

Referring to fig. 1 to 3, the plug base body 110 is a rectangular block made of insulating engineering plastic, typically a low-k high-frequency material, such as LCP. The plug base body 110 includes a plug bottom wall 111, a plug side wall 112 extending from the plug bottom wall 111 to the top in the vertical direction and extending along the length direction of the plug connector, and a plug end wall 113 extending from the width direction of the plug connector, wherein a long-strip-shaped notch 110a is formed on the plug base body 200 according to the outer circumference thereof, and is surrounded by the plug bottom wall 111, the plug side wall 112 and the plug end wall 113 which surround the same and have approximately the same thickness, and the notch 110a is opened upward to accommodate the corresponding fitting convex part of the socket connector 200.

Referring to fig. 1 and 2, the plug terminals 120 are formed by stamping and bending a metal plate, and the plug terminals 120 are fixed on the plug side wall 112 in two rows. The plug terminal 120 includes a plug terminal contact portion 121 having an inverted U-shape and an elongated male connection portion 122 bent from a bottom wall of the plug terminal contact portion 121 to one side, specifically, the plug terminal contact portion 121 is embedded in an upper portion of the corresponding plug sidewall 112 from above to be electrically connected to the socket terminal 220, and the male connection portion 122 is connected to the plug terminal contact portion 121 and extends to the outside of the plug base 110 in the plug bottom wall 111 to be electrically connected to a signal pad (not shown) of the circuit board by soldering.

Referring to fig. 1 to 5, the plug metal member 130 is connected to the ground pad of the circuit board by soldering, and is formed by bending a metal plate by stamping and is in a shape of a strip. In this embodiment, two plug metal fittings 130 are respectively embedded at two ends of the plug base body 110 in an opposite manner, and more specifically, the plug metal fittings 130 are embedded on the corresponding plug end walls 113 in an insert-molding manner (insert-molding) in a structure of being wrapped around the plug end walls 113, and the surface of the plug end wall 113 has a flat plate surface with a wider width, and is bent downward along the outer side of the plug end wall 113 and horizontally extends to a plug metal fitting connecting plate portion 130a outside the plug base body 110. With the above arrangement, the upper surface of the plug end wall 113 is covered with a metal shield, so that the plug base 110 is protected from damage when fitted into a connector receptacle and inserted, thereby improving the reliability of the plug connector 100.

Referring to fig. 1 to 5, the plug insertion element 140 is connected to the ground pad of the circuit board by soldering, and is formed by blanking and punching a metal plate and has a long strip shape. The plug insert 140 is located between the two rows of plug terminals 120, extends along the length direction of the plug connector 100, and is fixed at the middle position of the plug bottom wall 111 in the plug base 110 by the plug main body portion 141.

Further, the plug body 141 is formed with two, extending plug abutting portions 142 cantilevered in the abutting direction and exposed from the plug base 110, and the plug abutting portions 142 protrude and are exposed from the notch portion 110 a.

In addition, at least one plug-in connector connecting plate portion 143 is formed at the bottom end of the plug main body portion 141 for solder connection to the circuit board.

Referring to fig. 1 to 5, the socket base 210 is substantially rectangular and made of insulating engineering resin material, such as LCP, and the length and width dimensions of the socket base 210 are respectively larger than the corresponding dimensions of the notch portion 110a of the plug connector 100 so as to be fittingly inserted in a predetermined manner. The plug connector comprises a socket bottom wall 211, a fitting convex part 212 which is formed by upward protruding from the middle part of the socket bottom wall 211, and an annular side part 213 which forms an annular groove 210a with the fitting convex part 212, wherein the annular groove 210a is used as a plugging space for accommodating the plug connector 100, and the length and the width of the annular groove 210a are suitable for accommodating the plug base body 110 of the plug connector.

It should be noted that the two ends of the annular groove 210a are opened with through holes 210b to optimize the resistance to structural deformation.

Referring to fig. 1 and 2, a plurality of socket terminals 220 are formed by stamping and bending a metal plate, and each socket terminal 220 is fixed on the annular side portion 213 in two rows.

The socket terminal 220 is arranged with contacts 221a slightly protruding from the annular groove 210a on the inner side of the corresponding annular groove 210a to be connected with the corresponding plug terminal contact portion 121. More specifically, each socket terminal 220 includes an elastic arm portion 221 provided with the contact 221a and a female connection portion 222 connected to the elastic arm portion 221 and extending in a longitudinal direction out of the socket base 220, the female connection portion 222 being adapted to be connected to a pad (not shown) on a circuit board by soldering.

Referring to fig. 1 to 5, the socket metal member 230 is connected to the ground pad of the circuit board by soldering, and is formed by bending a metal plate by stamping and is in a shape of a strip. In the present embodiment, two socket guides 231 are provided at both ends of the annular side portion 213, and the socket guides 231 are provided at both ends of the annular side portion 213 to guide the plug connector 100 to be inserted and fixed from above so as to face each other. The socket metal 230 has a socket metal web portion 232 formed extending downwardly from a bottom edge thereof. The inner edge of the socket guiding portion 231 is a smooth arc-shaped segment, and the arc-shaped segment is wrapped on the upper portion of the annular side portion 213, so that the structural strength of the arc-shaped segment is enhanced, and a good insertion guiding effect is improved when the arc-shaped segment is inserted into the plug connector 100.

Referring to fig. 1 to 5, the socket insert 240, which is used to connect with the grounding pad of the circuit board by soldering, is formed by bending and punching a metal plate. The socket engaging member 240 is located between the two rows of socket terminals 220, extends along the length direction of the socket connector 200, and is fixed to the middle position of the socket bottom wall 211 in the socket base 210 through the socket main body portion 241.

In this embodiment, two socket connectors 240 are arranged symmetrically on a plane where the middle position of the long side of the socket connector 200 is located, the socket body 241 is connected with a socket butting portion 242, the socket butting portion 242 is exposed in the fitting protrusion 212, can be elastically deformed in a direction perpendicular to the butting direction of the plug butting portion 142, and is clamped on two sides of the plug butting portion 142, so as to be engaged, snapped and held with the plug butting portion 142.

In addition, each of the socket connectors 240 has a socket connector connecting plate portion 243 extending along the length direction of the socket connector for soldering connection to the ground pad of the circuit board.

Referring to fig. 1 to 5, the socket side member 250 is a strip-shaped plate bending member formed by bending a metal plate material by stamping and connecting the socket side member 250 to a ground pad of a circuit board by soldering, the socket side member 250 includes a plate-shaped side main portion 251 having a strip-shaped plate, a plate-shaped side connecting portion 252 bent perpendicularly from the bottom of the side main portion 251 and extending out of the socket base 210, and a side connecting portion 253 bent from both end edges of the side main portion 251 to improve the connecting strength, and the side connecting portion 252 is used for being soldered to the ground pad of the circuit board. In the present embodiment, the socket side member 250 is two, and each socket side member 250 is embedded in the sidewall of the corresponding annular side portion 213 extending along the length direction of the socket connector in an insert molding manner, and is disposed in parallel with each other along the transverse direction at an intermediate position between two socket metal members 230.

It should be noted that the side body connecting portion 252 of the socket side body and the socket metal piece connecting plate portion 232 of the socket metal piece are electrically connected to the same grounding pad (not shown) of the circuit board, so that the manufacturing process of the external shielding isolation structure is greatly simplified, the manufacturing difficulty is reduced, and the manufacturing cost is reduced.

The utility model provides an above-mentioned plug connector 100 and socket connector 200 built-up connection of electric connector combination is in the same place, forms all around the electromagnetic shield wall that has the electromagnetic interference of preventing that all surrounds at signal terminal (plug terminal and socket terminal promptly), realizes the superior EMI effect that prevents.

In summary, with the above configuration, the electric connector and the assembly thereof according to the above aspects of the present invention have excellent shielding effect and good insertion guiding.

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 represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An electrical connector comprising a plug connector and a receptacle connector which are fitted to each other for connection, the plug connector and the receptacle connector being adapted to be soldered to a circuit substrate, respectively, the plug connector comprising:

the plug base body comprises a plug bottom wall, a plug side wall and a plug end wall, wherein the plug side wall is formed by upward and vertical extension of the plug bottom wall and extends along the length direction of the plug connector, the plug end wall extends along the width direction of the plug connector, and the plug bottom wall, the plug side wall and the plug end wall surround to form a notch part with an upward opening;

the plug terminals are arranged and fixed on the plug side wall in two rows;

the plug metal piece is coated on the end wall of the plug and is provided with a plug metal piece connecting plate part which is bent downwards and horizontally extends out of the plug base body;

the receptacle connector includes:

the socket base body comprises a socket bottom wall, a jogged convex part formed by upwards protruding from the socket bottom wall and an annular side part forming an annular groove with the jogged convex part, wherein the annular groove is used as a plugging space for accommodating the plug connector;

a plurality of socket terminals fixed to the annular side portion in two rows;

socket metal fittings fixed at two ends of the annular side part in an opposite way, and socket guide parts for guiding the plug connectors to be plugged are arranged at two ends of the annular side part;

the socket side piece is fixed on at least one of two opposite side walls of the annular side part, and the two opposite side walls extend along the length direction of the socket connector;

after the plug connector is in embedded butt joint with the socket connector, the plug terminals are in contact with the corresponding socket terminals for signal transmission.

2. The electrical connector of claim 1, wherein said receptacle side members are two, each of said receptacle side members having a flat plate-like side body main portion and a side body connecting portion bent perpendicularly from the side body main portion and extending outside said receptacle base, said side body main portion being disposed in parallel opposite to opposite side walls of said annular side portion extending in a length direction of said receptacle connector.

3. The electrical connector of claim 1 or 2, wherein the socket side member is insert-molded to a side wall of the corresponding annular side portion extending in a length direction of the socket connector.

4. The electrical connector of claim 1 or 2, wherein the annular groove is provided with through hole portions at both ends.

5. The electrical connector of claim 1 or 2, wherein the plug metal member is a plate-like structure made of a metal sheet and fixed to the plug end wall by insert molding.

6. The electrical connector of claim 1 or 2,

the plug connector further comprises a plug inserting piece, the plug inserting piece is fixed in the plug base body and located between the two rows of plug terminals, the plug inserting piece extends along the length direction of the plug connector and comprises a plug main body part at least partially fixed in the plug base body;

the socket connector further comprises a socket inserting piece, the socket inserting piece is fixed in the socket base body and located between the two rows of socket terminals, the socket inserting piece extends along the length direction of the socket connector, and the socket inserting piece comprises a socket main body portion, at least part of the socket main body portion is fixed in the plug base body in the socket base body.

7. The electrical connector of claim 6, wherein the plug body extends to form a plug mating portion exposed outside the plug base, the socket body extends to form a socket mating portion corresponding to the plug mating portion, and the socket mating portion is exposed in the engaging protrusion.

8. The electrical connector of claim 7, wherein one of the plug mating section and the receptacle mating section is elastically deformable in a direction perpendicular to the mating direction.

9. The electrical connector of claim 7 or 8, wherein at least two of the plug mating section and the receptacle mating section are provided, and one of the plug mating section and the receptacle mating section is cantilevered in the mating direction.

10. An electrical connector assembly comprising at least one electrical connector, wherein the electrical connector comprises a plug connector and a socket connector which are connected by being embedded with each other, and the plug connector and the socket connector are respectively welded to a circuit substrate;

the plug connector includes:

the plug base body comprises a plug bottom wall, a plug side wall and a plug end wall, wherein the plug side wall is formed by upward and vertical extension of the plug bottom wall and extends along the length direction of the plug connector, the plug end wall extends along the width direction of the plug connector, and the plug bottom wall, the plug side wall and the plug end wall surround to form a notch part with an upward opening; the plug terminals are arranged and fixed on the plug side wall in two rows; the plug metal piece is coated on the end wall of the plug and is provided with a plug metal piece connecting plate part which is bent downwards and horizontally extends out of the plug base body; the plug inserting piece is fixed in the plug base body and positioned between two rows of plug terminals, extends along the length direction of the plug connector and comprises a plug main body part at least partially fixed in the plug base body;

the receptacle connector includes:

the socket base body comprises a socket bottom wall, a jogged convex part formed by upwards protruding from the socket bottom wall and an annular side part forming an annular groove with the jogged convex part, wherein the annular groove is used as a plugging space for accommodating the plug connector; a plurality of socket terminals fixed to the annular side portion in two rows; socket metal fittings fixed at two ends of the annular side part in an opposite way, and socket guide parts for guiding the plug connectors to be plugged are arranged at two ends of the annular side part; the socket side piece is fixed on at least one of two opposite side walls of the annular side part, and the two opposite side walls extend along the length direction of the socket connector; the socket inserting piece is fixed in the socket base body and positioned between two rows of socket terminals, extends along the length direction of the socket connector and comprises a socket main body part at least partially fixed in the plug base body in the socket base body;

after the plug connector is embedded and butted with the socket connector, the plug terminal is contacted with the corresponding socket terminal for signal transmission;

wherein the content of the first and second substances,

the plug main body part is extended to form a plug butt joint part exposed out of the plug base body, the socket main body part is extended to form a socket butt joint part correspondingly matched with the plug butt joint part in a clamping and fixing mode, and the socket butt joint part is arranged in the embedding convex part in an exposed mode; the plug butt joint part and the socket butt joint part are respectively provided with at least two parts, and one of the parts is in a cantilever shape in the butt joint direction; the socket inserting piece is formed by a metal sheet through a bending process and is provided with a socket inserting piece connecting plate part extending along the length direction of the socket connector, and the socket butting part is clamped on two sides of the plug butting part through elastic deformation.