CN212342939U

CN212342939U - Electrical connector

Info

Publication number: CN212342939U
Application number: CN202020837732.7U
Authority: CN
Inventors: 王华巍; 曾腾飞
Original assignee: Shanghai Aerospace Science and Industry Appliance Co Ltd
Current assignee: Shanghai Aerospace Science and Industry Appliance Co Ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-01-12
Anticipated expiration: 2030-05-19

Abstract

The utility model relates to an electric connector, including the terminal unit that bayonet socket and multiunit set up side by side, the terminal unit includes signal terminal subassembly, shielding piece and ground connection piece, and the main part of ground connection piece is the slice, and the relative both sides of locating the signal terminal subassembly are covered respectively to the main part with the shielding piece, and main part and shielding piece electric connection have seted up a plurality of jacks on the bayonet socket, and the jack runs through the bayonet socket, and ground connection terminal alternates the jack correspondingly, and each ground connection terminal in the multiunit terminal unit passes through the bayonet socket and connects altogether. The utility model discloses an electric connector, the main part and the shielding piece of ground connection spare are connected, have better shielding effect to the signal terminal subassembly that lies in between the two, and each ground terminal of multiunit terminal unit alternates respectively in the plug socket, realizes that all ground connection spares of terminal unit are ground altogether to make all signal terminal subassemblies of electric connector all kept apart by corresponding shielding piece and ground connection spare, can not take place signal crosstalk each other, maintain signal transmission's stability.

Description

Electrical connector

Technical Field

The utility model belongs to the technical field of the connector, especially, relate to an electric connector.

Background

The electric connector is used as an element for realizing the electric connection of each module in the electronic equipment, and plays a role in mutually transmitting electronic signals among the modules of the electronic equipment. In the conventional electrical connector, signals of each channel part generate crosstalk, and signal energy is easily lost to influence the signal transmission stability of the electrical connector.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for an electrical connector that can reduce signal crosstalk and improve signal transmission stability.

The utility model provides an electric connector, including bayonet socket and the terminal unit that the multiunit set up side by side, the terminal unit includes signal terminal subassembly, shielding piece and ground connection piece, wherein, ground connection piece includes main part, a plurality of ground connection terminal and a plurality of ground connection pin, and a plurality of ground connection terminal connect side by side in one of them side reason of main part, a plurality of ground connection pin connect side by side in the opposite side edge of main part; the main body part is sheet-shaped, the main body part and the shielding sheet are respectively covered on two opposite sides of the signal terminal component, the main body part is electrically connected with the shielding sheet, a plurality of jacks are formed in the plug socket, the jacks penetrate through the plug socket, the grounding terminals correspondingly penetrate through the jacks, and the grounding terminals in the plurality of groups of terminal units are connected in common through the plug socket.

In one embodiment, a port of the insertion hole is chamfered to form a guiding inclined plane, and the guiding inclined plane is used for guiding the ground terminal to penetrate through the insertion hole.

In one embodiment, the socket includes a plastic body and a conductor embedded in the plastic body, and a portion of the conductor is exposed on a sidewall of the insertion hole, so that when the ground terminal is inserted into the insertion hole, the conductor is electrically connected to the ground terminal.

In one embodiment, the signal terminal assembly includes a plastic seat and a plurality of signal terminals, the signal terminals are embedded in the plastic seat through injection molding, and respectively lead out a contact portion and a pin portion, wherein an extending direction of the contact portion is perpendicular to an extending direction of the pin portion.

In one embodiment, the plastic seat has a plurality of through holes, the main body has a plurality of contact pieces thereon, the contact pieces are bent with respect to the main body, and when the main body and the shielding piece are disposed on opposite sides of the signal terminal assembly, the contact pieces pass through the through holes and electrically contact the shielding piece.

In one embodiment, the extending direction of the ground terminal is perpendicular to the extending direction of the ground pin, and a bending portion is disposed between the ground pin and the main body portion, so that the ground pin protrudes out of one side of the main body portion facing the shield plate.

In one embodiment, the socket is provided with a hollow groove for the contact part to pass through.

In one embodiment, a clamping groove is formed in one side of the plastic seat, which is far away from the contact portion, the electrical connector comprises a fixing piece, a plurality of clamping grooves are formed in the fixing piece, and the clamping groove and the clamping grooves can be mutually clamped to fix the signal terminal assemblies of the plurality of sets of terminal units together.

In one embodiment, the electrical connector includes a screen plate, the screen plate is provided with a plurality of through slots, and the ground pins and the pin portions of the signal terminals respectively correspondingly penetrate through the through slots.

In one embodiment, the electrical connector includes a rectangular parallelepiped housing having openings at two ends, and the terminal unit can be assembled in the housing through the openings such that the ground terminal and the ground pin are exposed from the housing.

The utility model discloses an electric connector, including the terminal unit that bayonet socket and multiunit set up side by side, the terminal unit includes the signal terminal subassembly, shielding piece and grounding part, wherein, the main part of grounding part is the slice, and the relative both sides of locating the signal terminal subassembly are respectively covered to main part and shielding piece, main part and shielding piece electric connection, thereby make main part and shielding piece electrical property common ground, signal terminal subassembly to lieing in between the two has better shielding effect, in order to reduce signal crosstalk, furthermore, each grounding terminal of multiunit terminal unit alternates respectively in the bayonet socket, realize that all grounding parts of terminal unit are common ground, thereby make all signal terminal subassemblies of electric connector all kept apart by corresponding shielding piece and grounding part, signal crosstalk can not take place between each other, signal transmission's stability is maintained.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, drawings of other embodiments can be obtained according to the drawings without creative efforts.

Fig. 1 is an exploded view of an electrical connector according to an embodiment;

FIG. 2 is a partial enlarged view of the structure of the portion circled A in FIG. 1;

fig. 3 is an exploded view of a terminal unit in the electrical connector according to an embodiment;

fig. 4 is an assembly structure view of the terminal unit shown in fig. 3;

FIG. 5 is a partial enlarged view of the structure of the portion encircled in B in FIG. 3;

FIG. 6 is a partial enlarged view of the structure of the portion encircled by circle C in FIG. 4;

fig. 7 is a schematic structural diagram of a socket in the electrical connector according to an embodiment;

fig. 8 is a schematic structural diagram of a screen plate in the electrical connector according to an embodiment;

fig. 9 is a schematic view of the assembly of the grounding member with the socket and the screen plate in the electrical connector according to an embodiment;

FIG. 10 is an enlarged, fragmentary view of the structure encircled in FIG. 9;

FIG. 11 is an exploded view of a signal terminal assembly of the electrical connector according to one embodiment;

FIG. 12 is a structural view of the signal terminal assembly of FIG. 11 in an assembled state, wherein a partial cross-section of the abutting position of one of the signal terminals with the plastic seat is shown;

fig. 13 is a partially enlarged view of the structure of the portion encircled by the circle D in fig. 12.

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 may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "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, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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," and "fixed" are to be construed broadly and may, 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. 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.

Referring to fig. 1 and 2, an electrical connector according to an embodiment of the present invention includes a socket 10 and a plurality of terminal units 20 arranged side by side.

As shown in connection with fig. 3 and 4, the terminal unit 20 includes a signal terminal assembly 21, a shield plate 22, and a ground member 23. The grounding part 23 includes a main body 231, a plurality of grounding terminals 232 and a plurality of grounding pins 233, the grounding terminals 232 are connected to one side edge of the main body 231 side by side, and the grounding pins 233 are connected to the other side edge of the main body 231 side by side; the main body 231 is sheet-shaped, the main body 231 and the shielding plate 22 are respectively disposed on two opposite sides of the signal terminal assembly 21 in a covering manner, and the main body 231 and the shielding plate 22 are electrically connected to shield the signal terminal assembly 21 therebetween, so that multiple sets of terminal units 20 arranged side by side have independent channels, and the signal terminal assemblies 21 of the terminal units 20 transmit signals without interfering with each other.

In this embodiment, as shown in fig. 7 and 9, the socket 10 is provided with a plurality of insertion holes 11, the insertion holes 11 penetrate through the socket 10, the ground terminals 232 correspondingly penetrate through the insertion holes 11, and the ground terminals 232 in the plurality of sets of terminal units 20 are connected in common through the socket 10, so that the electrical connector as a whole is grounded by the ground parts 23 and the shielding pieces 22 of the terminal units 20, so as to isolate signals of all the signal terminal assemblies 21, thereby reducing the probability of crosstalk occurring when the signal terminal assemblies 21 of different terminal units 20 transmit signals, so that the terminal units 20 of each set can transmit data at the same time without crosstalk occurring, and the electrical connector structure improves the stability during large data transmission.

As shown in fig. 9 and 10, the port of the insertion hole 11 is chamfered to form a guiding inclined plane 111, and the guiding inclined plane 111 is used to guide the ground terminal 232 to penetrate through the insertion hole 11. With this structure, it is convenient to assemble the socket 10 with each set of the terminal units 20.

In some embodiments, the socket 10 includes a plastic body and a conductor embedded in the plastic body, and a portion of the conductor is exposed on a sidewall of the insertion hole 11, so that when the ground terminal 232 is inserted into the insertion hole 11, the conductor is electrically connected to the ground terminal 232, and all the ground terminals 232 inserted into the socket 10 are electrically grounded, so that the ground member 23 and the shielding plate 22 in each set of terminal units 20 are grounded to shield the corresponding signal terminal assemblies 21, and signals transmitted by the signal terminal assemblies 21 between different terminal units 20 are effectively prevented from interfering with each other.

In some embodiments, as shown in fig. 11 to 13, the signal terminal assembly 21 includes a plastic seat 211 and a plurality of signal terminals 212. The signal terminals 212 are embedded in the plastic seat 211 by injection molding, and respectively lead out a contact portion 212a and a pin portion 212b, wherein the extending direction of the contact portion 212a is perpendicular to the extending direction of the pin portion 212 b.

In some embodiments, as shown in fig. 3, the plastic seat 211 has a plurality of through holes 2111, the main body 231 has a plurality of contact pieces 23a, the contact pieces 23a are bent relative to the main body 231, and when the main body 231 and the shielding piece 22 are disposed on opposite sides of the signal terminal assembly 21, the contact pieces 23a pass through the through holes 2111 and electrically contact the shielding piece 22. In this embodiment, the contact piece 23a is electrically contacted with the shielding piece 22 by bending, so as to ensure a gap between the main body 231 and the shielding piece 22, and clamp the signal terminal assembly 21 therebetween, so that the signal of the signal terminal assembly 21 is shielded by the main body 231 and the shielding piece 22 in an independent channel, and is not interfered by the signal transmitted by the signal terminal 212 unit 20 of the other terminal unit 20, thereby improving the signal transmission stability of the electrical connector.

The contact piece 23a and the shielding piece 22 can be matched by plugging, and only a plugging hole is formed at the corresponding position of the shielding piece 22, so that the stable assembly between the contact piece 23a and the shielding piece 22 is realized, and good electrical contact between the contact piece 23a and the shielding piece 22 is ensured.

As shown in fig. 4 to 6, the extending direction of the ground terminal 232 is perpendicular to the extending direction of the ground pin 233, and a bending portion is disposed between the ground pin 233 and the main body 231, so that the ground pin 233 protrudes out of one side of the main body 231 facing the shielding plate 22, when the main body 231 and the shielding plate 22 are assembled on two opposite sides of the signal terminal assembly 21, the ground pin 233 abuts against the shielding plate 22 and separates the pin portions 212b of different signal terminals 212, so that the pin portions 212b of the signal terminals 212 are isolated by the ground pin 233, thereby realizing independent signal transmission, facilitating reduction of signal crosstalk and improvement of transmission stability.

As shown in fig. 7, the socket 10 has a hollow-out groove 12, and the hollow-out groove 12 is used for the contact portion 212a to pass through, so that the socket 10 can be tightly combined with each set of terminal units 20, the overall size is reduced, and the structure of the electrical connector is smaller.

Referring to fig. 1 and 2, a clamping groove 20a is disposed on a side of the plastic seat 211 away from the contact portion 212a, the electrical connector includes a fixing plate 30, a plurality of clamping grooves 31 are disposed on the fixing plate 30, and the clamping groove 20a can be clamped with the clamping grooves 31 to fix the signal terminal assemblies 21 of the plurality of sets of terminal units 20 together, so as to integrally assemble the plurality of sets of terminal units 20 together.

In some embodiments, as shown in fig. 1, 8 and 9, the electrical connector includes a screen plate 40, the screen plate 40 is provided with a plurality of through slots 41, and the ground pins 233 and the pin portions 212b of the signal terminals 212 respectively and correspondingly protrude from the through slots 41 to meet the corresponding installation requirement, for example, the respective ground pins 233 or the pin portions 212b of the signal terminals 212 that protrude through the through slots 41 may be fixed on the circuit board by soldering.

It should be noted that, as shown in fig. 1, the electrical connector includes a housing 50, and the housing 50 is used to integrally package the socket 10 and the terminal unit 20 together. Specifically, the housing 50 is a rectangular parallelepiped, and has openings at both ends, and the terminal unit 20 can be assembled in the housing 50 through the openings, so that the ground terminal 232 and the ground pin 233 are exposed out of the housing 50.

In some embodiments, the opposite sides of the housing cover 50 are provided with fixing portions, which may be bolt holes 51, and nuts 52 for engaging with the bolts may be provided at the bolt holes 51, so that the electrical connector is mounted to a proper position by engaging with the bolts and the nuts 52.

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 electric connector is characterized by comprising a plug socket and a plurality of groups of terminal units arranged side by side, wherein each terminal unit comprises a signal terminal assembly, a shielding plate and a grounding piece, each grounding piece comprises a main body part, a plurality of grounding terminals and a plurality of grounding pins, the plurality of grounding terminals are connected to one side edge of the main body part side by side, and the plurality of grounding pins are connected to the other side edge of the main body part side by side; the main body part is sheet-shaped, the main body part and the shielding sheet are respectively covered on two opposite sides of the signal terminal component, the main body part is electrically connected with the shielding sheet, a plurality of jacks are formed in the plug socket, the jacks penetrate through the plug socket, the grounding terminals correspondingly penetrate through the jacks, and the grounding terminals in the plurality of groups of terminal units are connected in common through the plug socket.

2. The electrical connector of claim 1, wherein the port of the insertion hole is chamfered to form a guiding inclined surface for guiding the ground terminal to pass through the insertion hole.

3. The electrical connector of claim 2, wherein the socket comprises a plastic body and a conductor embedded in the plastic body, and a portion of the conductor is exposed out of the sidewall of the insertion hole, so that when the ground terminal is inserted into the insertion hole, the conductor is electrically connected to the ground terminal.

4. The electrical connector of claim 1, wherein the signal terminal assembly comprises a plastic base and a plurality of signal terminals, the signal terminals are embedded in the plastic base by injection molding and lead out a contact portion and a lead portion respectively, and an extending direction of the contact portion is perpendicular to an extending direction of the lead portion.

5. The electrical connector of claim 4, wherein the plastic housing defines a plurality of through holes, the main body defines a plurality of contact tabs, the contact tabs are bent with respect to the main body, and the contact tabs pass through the through holes and electrically contact the shield tabs when the main body and the shield tabs are disposed on opposite sides of the signal terminal assembly.

6. The electrical connector of claim 4, wherein the extending direction of the ground terminal is perpendicular to the extending direction of the ground pin, and a bending portion is disposed between the ground pin and the main body portion to make the ground pin protrude from a side of the main body portion facing the shield plate, and when the main body portion and the shield plate are assembled on opposite sides of the signal terminal assembly, the ground pin abuts against the shield plate and separates the pin portions of different signal terminals.

7. The electrical connector of claim 4, wherein the socket has a hollow-out slot for the contact portion to pass through.

8. The electrical connector of claim 4, wherein a clamping groove is formed on a side of the plastic seat away from the contact portion, the electrical connector includes a fixing plate, a plurality of clamping grooves are formed on the fixing plate, and the clamping groove and the clamping grooves can be mutually clamped to fix the signal terminal assemblies of the plurality of sets of terminal units together.

9. The electrical connector of claim 4, comprising a screen plate, wherein the screen plate is provided with a plurality of through slots, and the ground pins and the pin portions of the signal terminals respectively correspondingly penetrate through the through slots.

10. The electrical connector according to any one of claims 1 to 9, comprising a housing, wherein the housing has a rectangular parallelepiped shape and has openings at both ends, and the terminal unit can be fitted into the housing through the openings such that the ground terminal and the ground pin are exposed from the housing.