CN215645128U

CN215645128U - Electric connector and anti-return sheet thereof

Info

Publication number: CN215645128U
Application number: CN202121641918.6U
Authority: CN
Inventors: 包中南; 苏福; 平红阳; 常康乐
Original assignee: Qinghong Electronics Suzhou Co ltd
Current assignee: Qinghong Electronics Suzhou Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-01-25
Anticipated expiration: 2031-07-19
Also published as: TWM623522U

Abstract

The utility model discloses an electric connector and a backstop sheet thereof. The electric connector comprises a shell, a plurality of transmission sheets and at least one anti-return sheet, wherein the transmission sheets are installed in the shell along an installation direction, the anti-return sheet is inserted in the shell along an insertion direction, and the installation direction is crossed with the insertion direction. Each transmission piece comprises an insulating piece body and a plurality of conductive terminals fixed on the insulating piece body. The at least one anti-return sheet comprises a cross beam and a plurality of support arms extending from the cross beam, and the at least one anti-return sheet can be inserted into the shell along the insertion direction so that the plurality of support arms limit the insulating sheet bodies of the plurality of transmission sheets. Therefore, the shell of the electric connector and the plurality of transmission sheets can be fixed together by the anti-return sheets at the same time.

Description

Electric connector and anti-return sheet thereof

Technical Field

The present invention relates to an electrical connector and a locking plate thereof, and more particularly, to an electrical connector and a locking plate thereof suitable for high-speed signal transmission.

Background

The conventional electrical connector is generally provided with a check plate to prevent the plurality of signal transmission plates from being separated from the housing of the electrical connector by themselves, and the conventional check plate is disposed in the signal transmission plate in a direction parallel to the mounting direction of the plurality of signal transmission plates. More specifically, the conventional anti-slip sheet is formed by pressing a plurality of signal transmission sheets from the rear portion of the signal transmission sheet toward the front portion thereof or in a direction of the signal transmission sheet toward the housing, and then fixing the plurality of signal transmission sheets.

However, the above-mentioned fixing manner of the anti-slip sheet does not fix the housing of the electrical connector and the plurality of signal transmission sheets together at the same time, so that the housing of the electrical connector may be separated from the plurality of signal transmission sheets for other reasons. Therefore, how to overcome the above-mentioned drawbacks by improving the structural design has become one of the important issues to be solved by the industry.

SUMMERY OF THE UTILITY MODEL

Embodiments of the present invention provide an electrical connector and a retaining plate thereof, which can effectively overcome the possible defects of the conventional electrical connector.

One embodiment of the present invention discloses an electrical connector, comprising: a housing; a plurality of transmission pieces mounted in the housing along a mounting direction; each transmission piece comprises an insulating piece body and a plurality of conductive terminals fixed on the insulating piece body; the anti-return sheet comprises a cross beam and a plurality of support arms extending from the cross beam; wherein at least one of the anti-return sheets is inserted into the housing along an insertion direction so that the plurality of support arms limit the insulating sheet bodies of the plurality of transmission sheets; wherein the installation direction intersects the insertion direction.

Preferably, a plurality of the transmission pieces are arranged in a row along a row direction, and the insulation piece bodies of any two adjacent transmission pieces are limited on one support arm.

Preferably, the insulating body of the transmission piece is formed with a groove, the grooves of any two adjacent transmission pieces are opposite and mutually corresponding and surround together to form a limiting groove, and the limiting groove is in interference fit with one corresponding support arm.

Preferably, each support arm is formed with two convex hulls that are located opposite both sides respectively, and is located every two of the opposite both sides of support arm the convex hulls correspond each other and set up or be the dislocation set, the spacing groove rather than corresponding two of support arm the convex hulls interference fit.

Preferably, at least one of the retaining pieces has two retaining portions, and the two retaining portions are formed by extending from two of the support arms located on both outer sides of the retaining piece in a direction away from each other; the two retaining parts of at least one retaining sheet are respectively embedded in the insulating sheet bodies of the two transmission sheets positioned at the two outer sides in the plurality of transmission sheets.

Preferably, the housing includes a slot formed by recessing from at least one end surface thereof in the insertion direction, and the housing is formed with at least one rib adjacent to the slot on at least one of the end surfaces; the support arms are inserted into the slots, and the cross beam is stopped by at least one rib.

Preferably, the insertion direction and the installation direction form an included angle of 80 to 90 degrees.

Preferably, the number of the at least one anti-return piece is limited to two, and the two anti-return pieces are respectively inserted into two end surfaces of the housing along the insertion direction, so that the plurality of support arms of the two anti-return pieces limit the insulating piece bodies of the plurality of transmission pieces.

Preferably, the housing has a mating face and a mounting face on opposite sides, and each of the conductive pieces is mounted to the housing by the mounting face such that a portion of each of the conductive terminals extends out of the mating face; each anti-return sheet is separated from the mounting surface by the same first distance, and the first distance is smaller than a second distance between any anti-return sheet and the mating surface.

One embodiment of the present invention discloses a back stop tab of an electrical connector, comprising: a cross beam; and a plurality of arms extending from a long side edge of the beam in an insertion direction; wherein each support arm is formed with at least two convex hulls respectively located at opposite sides.

Preferably, the retaining piece has two retaining portions, and the two retaining portions are formed by extending from two of the plurality of support arms located on both outer sides in a direction away from each other.

The electric connector and the anti-return sheet thereof have the beneficial effects that through the technical scheme that the anti-return sheet comprises the cross beam and the support arms extending from the cross beam, when the anti-return sheet is inserted into the shell along the insertion direction, the shell and the transmission sheets can be fixed together by the anti-return sheet, so that the transmission sheets are prevented from being separated from each other after being assembled with the shell.

For a better understanding of the nature and technical content of the present invention, reference should be made to the following detailed description of the utility model and the accompanying drawings, which are provided for illustration purposes only and are not intended to limit the scope of the utility model in any way.

Drawings

Fig. 1 is a perspective view of an electrical connector according to an embodiment of the utility model.

Fig. 2 is an exploded view of an electrical connector according to an embodiment of the utility model.

Fig. 3 is another exploded view of the electrical connector according to the embodiment of the present invention.

Fig. 4 is an enlarged schematic view of the portion IV of fig. 2.

Fig. 5 is a schematic side view of a transfer sheet according to an embodiment of the present invention.

Fig. 6 is an exploded view of a transmission sheet according to an embodiment of the present invention.

Fig. 7 is a schematic perspective view of a transmission module according to an embodiment of the utility model.

FIG. 8 is a perspective view of a retaining sheet according to an embodiment of the present invention.

FIG. 9 is a perspective view of another perspective of the anti-roll back sheet according to the embodiment of the present invention.

Fig. 10 is a schematic cross-sectional view taken along line X-X of fig. 1.

Detailed Description

The following description is provided for the embodiments of the "electrical connector and its anti-return plate" disclosed in the present invention by specific embodiments, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure of the present specification. The utility model is capable of other and different embodiments and its several details are capable of modifications and various changes in detail, all without departing from the spirit and scope of the present invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. Furthermore, as noted below with reference to or as shown in the accompanying drawings, it is emphasized that this discussion is merely illustrative of the specific figures, in which much of the relevant matter is presented, and not restrictive, in which reference is made to only these specific figures. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.

It will be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are used primarily to distinguish one element from another element or from one signal to another signal. In addition, the term "or" as used herein should be taken to include any one or combination of more of the associated listed items as the case may be.

Fig. 1 to 9 are views illustrating an embodiment of the present invention, and it should be noted that the corresponding figures and related numbers and shapes mentioned in the present embodiment are only used for describing the embodiment of the present invention in detail, so as to facilitate the understanding of the content of the present invention, and not to limit the scope of the present invention.

As shown in fig. 1 to 3, the embodiment of the utility model provides an electrical connector 100, which is a high-speed (high-frequency) connector applied to a server or a switch, for example, but the utility model is not limited thereto. The electrical connector 100 can be detachably connected (along a mounting direction S1) to another connector (not shown). For the convenience of the present embodiment, the electrical connector 100 defines an arrangement direction S2 perpendicular to the mounting direction S1, a perpendicular direction S3 perpendicular to the mounting direction S1 and the arrangement direction S2, and an insertion direction S4 intersecting the mounting direction S1 or the arrangement direction S2.

It should be noted that the installation direction S1 and the insertion direction S4 form an included angle between 80 degrees and 90 degrees, and the included angle is preferably 90 degrees in this embodiment. Wherein, when the included angle is 90 degrees, the inserting direction S4 is parallel to the vertical direction S3; when the angle is not 90 degrees, the inserting direction S4 intersects the vertical direction S3, i.e., the inserting direction S4 forms an angle with the vertical direction S3. In addition, when the arrangement direction S2 intersects the insertion direction S4, the arrangement direction S2 and the insertion direction S4 form a right angle or an angle greater than or less than 90 degrees.

As shown in fig. 1 to 3, the electrical connector 100 includes a housing 1, a plurality of transmission pieces 2, and at least one retaining piece 3, and the plurality of transmission pieces 2 are mounted in the housing 1 along the mounting direction S1, and the at least one retaining piece 3 is inserted in the housing 1 along the insertion direction S4. In the present embodiment, the plurality of transmission sheets 2 are stacked and aligned in the arrangement direction S2, and the plurality of transmission sheets 2 can be mounted to the housing 1 in various assembling manners, which are exemplified herein.

It should be noted that, in the embodiment, at least one of the retaining sheets 3 is described as being associated with the housing 1 and the plurality of the transmission sheets 2, but in other embodiments not shown in the present invention, at least one of the retaining sheets 3 may be used alone (for example, sold) or associated with other components. For convenience of explanation and understanding, the housing 1 will be described first, and then the plurality of transfer tabs 2 and the at least one anti-backup tab 3 will be described.

As shown in fig. 1 to 3, the housing 1 includes at least one end surface 11, and a mating surface 12 and a mounting surface 13 respectively connected to at least one of the end surfaces 11, and the mating surface 12 and the mounting surface 13 are respectively located on two opposite sides of the housing 1. In the present embodiment, the number of at least one end surface 11 is limited to two, and the mating surface 12 and the mounting surface 13 are perpendicular to any one of the end surfaces 11, respectively, but the present invention is not limited thereto. For example, the number of at least one end surface 11 may be limited to two or more according to requirements.

Further, in the present embodiment, the housing 1 is substantially rectangular, and the housing 1 further includes two side surfaces 14 connecting the mating surface 12 and the mounting surface 13, but the present invention is not limited thereto. Therefore, the housing 1 may be formed in a rectangular parallelepiped shape by connecting the two end faces 11 and a plurality of (for example, two) side faces 14 to each other, and by connecting the mating face 12 and the mounting face 13 to any one of the side faces 14 at the same time, and by connecting the mating face 12 and the mounting face 13 to each other at the same time, the end face 11 and the side face 14. For example, in other embodiments not shown in the present invention, the housing 1 may be other geometric cubes, and the number of the side surfaces 14 may be adjusted according to the geometric shape of the housing 1.

It is worth mentioning that, as shown in fig. 2, the mating surface 12 is further formed with a plurality of terminal holes 121 arranged in rows and columns, and when a plurality of the transmission pieces 2 are mounted in the housing 1 along the mounting direction S1, the plurality of terminal holes 121 of each row correspond in position to one of the transmission pieces 2, and the plurality of terminal holes 121 of each column correspond in position to a plurality of the transmission pieces 2. In more detail, the arrangement directions of the plurality of terminal holes 121 in each column and the plurality of terminal holes 121 in each row are perpendicular to each other, and the plurality of terminal holes 121 in any two adjacent rows (columns) are positioned corresponding to or staggered with each other. The arrangement direction of the terminal holes 121 in each row is parallel to the arrangement direction S2, the arrangement direction of the terminal holes 121 in each row is parallel to the vertical direction S3, each row of the terminal holes 121 includes a plurality of ground vias 1211 and a plurality of signal vias 1212, and each ground via 1211 is substantially U-shaped and has two adjacent signal vias 1212 disposed therein.

When the transmission sheets 2 are mounted in the housing 1, the transmission sheets 2 are partially inserted through the ground perforations 1211 and the signal perforations 1212. It should be noted that, since the structural design and shape of the terminal hole 121 are not limited thereto and are not the improvement of the present invention, the description of the present embodiment is omitted.

As shown in fig. 2 and 3, when the housing 1 is substantially rectangular, the housing 1 further includes a receiving groove 15 formed by being recessed from the mounting surface 13, two positioning plates 17 formed by extending from the two end surfaces 11, a slot 16 formed by being recessed from at least one of the end surfaces 11 along the insertion direction S4, and at least one rib 18 formed on the two end surfaces 11 and adjacent to the slot 16. In this embodiment, the receiving slot 15 can be used for receiving a plurality of the transmission plates 2, two of the positioning plates 17 can be used for fixing the electrical connector 100 and another connector when the electrical connector 100 and another connector are connected with each other, two slots 16 are respectively formed on two end surfaces 11 of the housing 1, each slot 16 can be used for inserting one of the anti-return plates 3 into the housing 1 along the inserting direction S4 to fix a plurality of the transmission plates 2, and at least one of the ribs 18 can be used for assisting in fixing the anti-return plate 3.

It should be noted that the structural design of the receiving groove 15 and the two positioning plates 17 is not a modified part of the present invention, and therefore, the following description of the present embodiment is omitted. The following description will mainly be directed to two of the insertion grooves 16 and at least one of the ribs 18.

As shown in fig. 3 and fig. 4, in the embodiment, the two slots 16 are opposite and mirror-symmetrical to each other, each slot 16 includes a slot opening 161 and a plurality of locking structures 162, and each locking structure 162 is formed from the inside of the corresponding slot 16 and penetrates through the slot opening 161, but the utility model is not limited thereto. For example, in other embodiments not shown in the present invention, the two slots 16 located on different end surfaces 11 may also be disposed in a staggered manner, and each of the locking structures 162 may not protrude through the slot opening 161.

More specifically, the slot opening 161 is located relatively far away from the receiving slot 15, a spacing distance (not shown) is formed between any two adjacent locking structures 162, and further, a plurality of locking structures 162 are arranged at the spacing distance to form a through hole (not shown) between any two adjacent locking structures 162, and the through hole can be formed between the locking structures 162 and the housing 1, the through hole penetrates through the housing 1 and the slot 16 and communicates the slot opening 161 and the receiving slot 15, the outer diameter of the through hole is approximately equal to the spacing distance, and the height of the portion of each locking structure 162 penetrating through the slot opening 161 is smaller than a maximum height of at least one rib 18 relative to the corresponding end surface 11.

As shown in fig. 1 to 3, in the present embodiment, the number of at least one rib 18 is limited to four, and four ribs 18 are respectively formed on two end surfaces 11, but the present invention is not limited thereto. For example, in other embodiments of the present invention, which are not shown, the number of at least one rib 18 can be adjusted according to the requirement.

Specifically, two of the ribs 18 are formed on one of the end surfaces 11, and the other two ribs 18 are formed on the other end surface 11, and the two ribs 18 formed on the same end surface 11 are positioned adjacent to the insertion grooves 16 on the same end surface 11. In the present embodiment, two of the ribs 18 formed on one of the end surfaces 11 and another two of the ribs 18 formed on the other end surface 11 are opposite to each other and are mirror images, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, two of the ribs 18 formed on one of the end surfaces 11 and another two of the ribs 18 formed on the other end surface 11 may not correspond to each other in position, or may be disposed in a staggered manner.

Further, in any one of the end surfaces 11 of the present embodiment, the slot 16 is located between two ribs 18, in other words, two ribs 18 on the same end surface 11 are located at two opposite sides or two adjacent sides of the corresponding slot 16, and one rib 18 is connected to one side of the corresponding end surface 11 relatively far away from the positioning plate 17.

It should be noted that, when the number of the end surfaces 11 is not two, the number of the slots 16 and the number of the ribs 18 are increased or decreased according to the number of the end surfaces 11. In other words, in other embodiments of the present invention, which are not shown, the number of the slots 16 and the number of the at least one rib 18 can be adjusted according to the requirement, and the present invention is not limited thereto.

The housing 1 is introduced so far, and a plurality of the transfer sheets 2 will be introduced. It should be noted that, since the configurations of the plurality of transmission sheets 2 are substantially the same in the present embodiment, for the convenience of understanding the present embodiment, only the configuration of a single transmission sheet 2 is described below, and then the connection relationship between the plurality of transmission sheets 2 is described in due course, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the electrical connector 100 may also employ a plurality of the transmission pieces 2 having different configurations.

As shown in fig. 5 and 6, in the present embodiment, each of the transmission sheets 2 includes a substantially rectangular insulating sheet body 21, a plurality of transmission modules 22 fixed to the insulating sheet body 21 and arranged in a line, and a shielding sheet 23 fixed to the insulating sheet body 21; that is, each of the transmission sheets 2 includes a plurality of the transmission modules 22 in a row, and a plurality of the transmission modules 22 fixing the row and the insulation sheet body 21 fixing the shielding sheet 23. As shown in fig. 2 and 3, the row of the transmission modules 22 (i.e., the plurality of transmission modules 22) is mounted to the housing 1 along the mounting direction S1. The shielding plate 23 of any one of the transfer plates 2 is formed with a plurality of openings 231 aligned in the vertical direction S3 for exposing a part of the transfer module 22.

Specifically, the insulating sheet 21 includes a front end 212, a top end 213, a back end 214, a bottom end 215, and a middle portion 216, which are elongated and distributed around the periphery. The longitudinal directions of the front end portion 212 and the rear end portion 214 are substantially perpendicular to the mounting direction S1 or parallel to the perpendicular direction S3, the longitudinal directions of the top end portion 213 and the bottom end portion 215 are substantially parallel to the mounting direction S1, and the longitudinal direction of the front end portion 212 is substantially perpendicular to the longitudinal direction of the bottom end portion 215.

Further, a receiving groove 2161 is concavely formed in the middle portion 216 of the insulating sheet body 21, and the receiving groove 2161 is a long structure extending along the direction parallel to the vertical direction S3 in the present embodiment, and is used for receiving the shielding sheet 23. In addition, the middle portion 216 is provided with a plurality of rivet posts 2162 along the vertical direction S3, and the rivet posts 2162 are inserted and fixed to the shielding plate 23, so as to resist the force generated by the electrical connector 100 on the shielding plate 23 during the insertion and extraction process, thereby preventing the shielding plate 23 from being bent.

As shown in fig. 6 and 7, the transmission module 22 includes a plurality of conductive terminals 221 fixed on the insulating sheet 21, a cable 222 connected to the plurality of conductive terminals 221, and a positioning block 223 covering and fixing the plurality of conductive terminals 221, and the cable 222 is partially located in the receiving slot 15. As shown in fig. 2 and 3, a plurality of the transmission sheets 2 are aligned in the alignment direction S2, and each of the transmission sheets 2 is mounted in the receiving slot 15 of the housing 1 by the mounting surface 13, so that a part of each of the conductive terminals 221 passes through the mating surface 12.

When the plurality of transmission sheets 2 are arranged side by side and installed in the housing 1, the plurality of transmission modules 22 are arranged in a plurality of rows each parallel to the vertical direction S3, and the plurality of conductive terminals 221 are disposed through the plurality of ground vias 1211 and the plurality of signal vias 1212. It should be noted that, since the structural design of the transmission module 22 is not a modified part of the present invention, the description of the present embodiment is omitted.

The transport piece 2 is introduced so far, and the introduction of at least one of the retaining pieces 3 will begin next. As shown in fig. 2 and 3, in the present embodiment, the number of at least one of the retaining pieces 3 is limited to two, but the present invention is not limited thereto. Specifically, the number of at least one of the retaining pieces 3 is increased or decreased in accordance with the number of the slots 16.

Further, the two retaining pieces 3 are respectively inserted into the two insertion grooves 16 of the two end surfaces 11 of the housing 1 along the insertion direction S4, so that the housing 1 and the plurality of transmission pieces 2 can be fixed to each other at the same time. As shown in fig. 1, each of the retaining pieces 3 is separated from the mounting surface 13 by the same first distance L1, and the first distance L1 is smaller than or equal to a second distance L2 between any one of the retaining pieces 3 and the mating surface 12. Alternatively, the first distance L1 is greater than or equal to the second distance L2 between any one of the retaining pieces 3 and the mating surface 12, depending on the structure and requirements of the transmission piece 2 and/or the housing 1.

It should be noted that, since the two anti-back-off sheets 3 have substantially the same structure in the present embodiment, for the convenience of understanding the present embodiment, only the structure of a single anti-back-off sheet 3 is described below, and then the connection relationship between the two anti-back-off sheets 3 and other components will be described in due course, but the utility model is not limited thereto. For example, in other embodiments not shown in the present invention, the electrical connector 100 may also employ two different structures of the anti-back-off plate 3.

As shown in fig. 8 and 9, the retaining piece 3 includes a beam 31, a plurality of arms 32 extending from one long side edge of the beam 31 in the insertion direction S4, and a plurality of retaining portions 33 extending from two outer arms 32 of the retaining piece 3 in a direction away from each other (i.e., along the long side edge of the beam 31).

Further, the plurality of arms 32 are arranged at intervals from one of opposite ends of the long side edge of the cross member 31 toward the other end in the longitudinal direction of the cross member 31 (of the long side edge), each of the plurality of arms 32 is connected to the cross member 31 at one end, and each of the plurality of arms 32 extends in the inserting direction S4 at the other end (the end relatively distant from the cross member 31). Wherein the length direction of the cross beam 31 is perpendicular to the inserting direction S4; the two support arms 32 positioned on the opposite ends of the cross beam 31 or closest to the opposite ends of the cross beam 31 are the two outermost support arms 32 of the anti-back-off sheet 3; at least one of the retaining portions 33 is formed on each of the two outermost arms 32 of the retaining piece 3, and the retaining portions 33 extend away from each other (i.e., in the longitudinal direction of the cross member 31 or along the long side edge of the cross member 31).

It should be noted that, as shown in fig. 8 and 9, each of the support arms 32 is further formed with two convex hulls 321 respectively located at two opposite sides, and the two convex hulls 321 located at two opposite sides of each of the support arms 32 are arranged correspondingly or in a staggered manner.

Specifically, in the present embodiment, the anti-back-off piece 3 is similar to the comb, and the anti-back-off piece 3 preferably has two anti-back-off portions 33, and the two anti-back-off portions 33 are formed by extending from two of the support arms 32 located at two outer sides of the anti-back-off piece 3 in a direction away from each other, but the utility model is not limited thereto. For example, in other embodiments not shown in the present invention, the retaining sheet 3 may also have 1 or more than two retaining portions 33 according to actual requirements.

It should be noted that, as shown in fig. 10, a plurality of the transmission plates 2 are installed side by side in the accommodating groove 15 of the housing 1, when a plurality of the support arms 32 are inserted into the inserting groove 16, the cross beam 31 stops at two of the ribs 18, the insulation plate 21 of any two adjacent transmission plates 2 is limited at one of the support arms 32, and two of the retaining portions 33 of the retaining plate 3 are respectively embedded in the insulation plate 21 of two of the transmission plates 2 located at two outer sides of the plurality of transmission plates 2.

Further, when the plurality of transmission pieces 2 are arranged from the side surface 14 of the housing 1 to another side surface 14 along the arrangement direction S2, two transmission pieces 2 on two outer sides among the plurality of transmission pieces 2 are respectively two transmission pieces 2 closest to the two side surfaces 14; each of the arms 32 is interposed between the insulating sheet bodies 21 of its corresponding adjacent two of the transmission plates 2 to prevent the transmission plates 2 from being withdrawn from the receiving grooves 15 of the housing 1.

In more detail, in the embodiment, the cross beam 31 is two ribs 18 adjacently disposed on the same end surface 11, and the cross beam 31 is located between the two ribs 18, and the cross beam 31 is not in contact with the two corresponding ribs 18, but the utility model is not limited thereto. For example, in other embodiments of the present invention, which are not shown, the cross beam 31 may also be clamped between two ribs 18.

In addition, when the plurality of support arms 32 are inserted into the slot 16, the plurality of support arms 32 are inserted into or penetrate through the through holes between the locking structures 162 to extend into the accommodating groove 15, in other words, the plurality of locking structures 162 in the slot 16 are respectively abutted and arranged between any two adjacent support arms 32, and the plurality of support arms 32 limit the insulating sheet bodies 21 of the plurality of transmission sheets 2, so that the plurality of support arms 32 of the anti-falling sheet 3 limit the insulating sheet bodies 21 of the plurality of transmission sheets 2.

It should be noted that, as shown in fig. 10, in the present embodiment, when a plurality of transmission sheets 2 are installed in the housing 1, a groove 211 is formed on the insulation sheet body 21 of the transmission sheet 2, and the grooves 211 of any two adjacent transmission sheets 2 are opposite and corresponding to each other and jointly surround to form a limiting groove 211 a.

Further, each of the transmission pieces 2 includes at least two of the concave grooves 211, and the two concave grooves 211 are respectively formed on opposite sides of the same end (e.g., the top end 213 or the bottom end 215) of the transmission piece 2 corresponding thereto and do not communicate with each other. In the present embodiment, the number of the grooves 211 of each of the transmission tabs 2 corresponds to the number of the anti-back-off tabs 3 of each of the electrical connectors 100. When said stop tab 3 is defined as one, then each of said transmission tabs 2 defines two of said recesses 211; when the retaining pieces 3 are defined in two, each of the transmission pieces 2 defines four of the recesses 211 without communicating with each other, and each of the two recesses 211 is formed on opposite side portions of the top end portion 213 and the bottom end portion 215 of the transmission piece 2 corresponding thereto, respectively.

It should be noted that, when the anti-return plate 3 is inserted into the housing 1, each of the support arms 32 of the anti-return plate 3 is inserted between the two corresponding adjacent insulation plate bodies 21 of the two transmission plates 2, the limit groove 211a is in interference fit with one of the support arms 32 corresponding thereto, and the limit groove 211a is in interference fit with two of the convex hulls 321 of the support arm 32 corresponding thereto.

Specifically, when the anti-back-off plate 3 is inserted into the insertion slot 16 of the housing 1, one end of each arm 32 of the anti-back-off plate 3, which is relatively far away from the cross beam 31, abuts against two opposite and opposite grooves 211 of two top ends 213 or two bottom ends 215 of two corresponding adjacent insulating sheet bodies 21 of the transmission plate 2 (that is, the two grooves 211 surround together to form the bottom of the limiting groove 211 a), and two convex hulls 321 abut against the inner sides of the limiting groove 211a, that is, the two convex hulls 321 abut against the inner sides of the two opposite and opposite grooves 211, respectively. Thereby, the plurality of transfer sheets 2 are not easily separated from each other after being assembled with the housing 1.

[ advantageous effects of the embodiments ]

The electrical connector 100 and the anti-return plate 3 thereof provided by the present invention have the beneficial effects that, according to the technical scheme that the anti-return plate 3 comprises the cross beam 31 and the plurality of support arms 32 extending from the cross beam 31, when the anti-return plate 3 is inserted into the housing 1 along the insertion direction S4, the anti-return plate 3 and the plurality of support arms 32 thereof are also inserted into the plurality of transmission plates 2 at the same time, and further inserted between the adjacent transmission plates 2, the housing 1 and the plurality of transmission plates 2 can be fixed together by the anti-return plate 3, so as to prevent the plurality of transmission plates 2 and the housing 1 from being separated from each other after being assembled.

Furthermore, the electrical connector 100 and the anti-return plate 3 thereof can be formed by "the anti-return plate 3 has two anti-return portions 33, and the two anti-return portions 33 are formed by extending from two outer support arms 32 of the plurality of support arms 32 in a direction away from each other", so that the anti-return plates 3 are not easily separated from each other when inserted into the corresponding slots 16 along the inserting direction S4.

More specifically, the electric connector 100 and the anti-retraction plate 3 thereof can be configured by a technical means of "two convex hulls 321 are formed on each support arm 32, the two convex hulls 321 on the two opposite sides of each support arm 32 are correspondingly arranged or are arranged in a staggered manner, and the limit groove 211a is in interference fit with the two convex hulls 321 of the support arm 32 corresponding to the limit groove, so that when the anti-retraction plate 3 is inserted into the housing 1 along the insertion direction S4, the housing 1 and the plurality of transmission plates 2 can be fixed together by the anti-retraction plate 3, thereby preventing the plurality of transmission plates 2 from being separated from the housing 1 after being assembled.

The disclosure is only a preferred embodiment of the utility model and should not be taken as limiting the scope of the utility model, which is defined by the appended claims.

Claims

1. An electrical connector, comprising:

a housing;

a plurality of transmission pieces mounted in the housing along a mounting direction; each transmission piece comprises an insulating piece body and a plurality of conductive terminals fixed on the insulating piece body; and

at least one anti-return sheet, which comprises a beam and a plurality of support arms extending from the beam; wherein at least one of the anti-return sheets is inserted into the housing along an insertion direction so that the plurality of support arms limit the insulating sheet bodies of the plurality of transmission sheets; wherein the installation direction intersects the insertion direction.

2. The electrical connector of claim 1, wherein a plurality of said transmission wafers are aligned in an alignment direction, and said dielectric sheet of any two adjacent transmission wafers is retained by one of said arms.

3. The electrical connector of claim 2, wherein the insulating plate of the transmission plate is formed with a groove, and the grooves of any two adjacent transmission plates are disposed opposite to each other and surround each other to form a limiting groove, and the limiting groove is in interference fit with one of the arms corresponding to the limiting groove.

4. The electrical connector of claim 3, wherein each of the arms is formed with two convex hulls respectively located at two opposite sides, and the two convex hulls located at two opposite sides of each of the arms are disposed correspondingly or in a staggered manner, and the limiting groove is in interference fit with the two convex hulls of the corresponding arms of the limiting groove.

5. The electrical connector of claim 1, wherein at least one of the retaining pieces has two retaining portions, and the two retaining portions are formed by extending from two of the plurality of arms located on both outer sides of the retaining piece in a direction away from each other; the two retaining parts of at least one retaining sheet are respectively embedded in the insulating sheet bodies of the two transmission sheets positioned at the two outer sides in the plurality of transmission sheets.

6. The electrical connector of claim 1, wherein the housing includes a slot formed recessed from at least one end surface of the housing in the insertion direction, and the housing is formed with at least one rib adjacent to the slot on at least one of the end surfaces; the support arms are inserted into the slots, and the cross beam is stopped by at least one rib.

7. The electrical connector of claim 1, wherein the insertion direction and the installation direction enclose an angle between 80 degrees and 90 degrees.

8. The electrical connector according to claim 1, wherein the number of the at least one retaining piece is limited to two, and the two retaining pieces are respectively inserted into two end surfaces of the housing along the insertion direction, so that the plurality of arms of the two retaining pieces limit the plurality of insulating piece bodies of the plurality of transmission pieces.

9. The electrical connector of claim 1 wherein said housing has a mating face and a mounting face on opposite sides thereof, and each said conductive strip is mounted to said housing from said mounting face such that a portion of each said conductive terminal extends through said mating face; each anti-return sheet is separated from the mounting surface by the same first distance, and the first distance is smaller than a second distance between any anti-return sheet and the mating surface.

10. An anti-back-off tab of an electrical connector, comprising:

a cross beam; and

a plurality of support arms formed by extending from a long side edge of the beam in an insertion direction; wherein each support arm is formed with at least two convex hulls respectively located at opposite sides.

11. The anti-backset tab of an electrical connector as claimed in claim 10, wherein the anti-backset tab has two anti-backset portions, and the two anti-backset portions are formed by extending from two of the plurality of arms located at two outer sides in a direction away from each other.