CN111525345B - Contact module and backplane connector using same - Google Patents

Contact module and backplane connector using same Download PDF

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Publication number
CN111525345B
CN111525345B CN202010318585.7A CN202010318585A CN111525345B CN 111525345 B CN111525345 B CN 111525345B CN 202010318585 A CN202010318585 A CN 202010318585A CN 111525345 B CN111525345 B CN 111525345B
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China
Prior art keywords
contact
exposed
contact module
insulator
module
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CN202010318585.7A
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Chinese (zh)
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CN111525345A (en
Inventor
关中杰
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China Aviation Optical Electrical Technology Co Ltd
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China Aviation Optical Electrical Technology Co Ltd
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Priority to CN202010318585.7A priority Critical patent/CN111525345B/en
Publication of CN111525345A publication Critical patent/CN111525345A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6461—Means for preventing cross-talk
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/652—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding   with earth pin, blade or socket

Abstract

The present invention relates to a contact module and a backplane connector using the same. The contact module includes: an insulator; the contact piece comprises a differential pair and a grounding contact pin which are arranged in the insulator; the ground pin has an exposed portion exposed relative to the insulator for shorting with exposed portions of other contact modules of the same connector. Through the interconnection and conduction among the grounding contact pins of the contact modules, the contact modules form a common-ground mode, the crosstalk among the contact modules is effectively prevented, and the signal transmission performance of the backplane connector, such as crosstalk, differential loss and other indexes, can be effectively improved.

Description

Contact module and backplane connector using same
Technical Field
The present invention relates to a contact module and a backplane connector using the same.
Background
The backplane connector is more and more widely applied in the data network field and the wireless communication field, and comprises a contact module, a plug shell and a fixing plate, wherein the contact module is inserted into the plug shell, and the fixing plate fixes the contact module at one side opposite to the plug shell. For example, a high-speed backplane connector in the prior art is disclosed in the utility model patent with the publication number CN208637684U and publication date 03, 22 in 2019.
Although the backplane connector in this form can effectively prevent the external environment from affecting the contact modules, the contact modules are not interconnected and conducted, so that crosstalk is likely to occur between the contact modules, and the performance of the backplane connector for transmitting signals, such as crosstalk and differential loss, is poor.
Disclosure of Invention
The present invention is directed to a contact module for solving the problem of poor indicators of crosstalk and differential loss of backplane connectors in the prior art, and another object of the present invention is to provide a backplane connector for solving the problem of poor indicators of crosstalk and differential loss between backplane connectors in the prior art.
In order to achieve the purpose, the technical scheme of the contact element module is as follows: a contact module, comprising:
an insulator;
the contact piece comprises a differential pair and a grounding contact pin which are arranged in the insulator;
the ground pin has an exposed portion exposed relative to the insulator for shorting with exposed portions of other contact modules of the same connector.
The contact element module has the beneficial effects that: through the interconnection and conduction among the grounding contact pins of the contact modules, the contact modules form a common ground form, the crosstalk among the contact modules is effectively prevented, and the signal transmission performance of the backplane connector, such as crosstalk, differential loss and other indexes, can be effectively improved.
Further, the insulator is provided with a matching part used for being matched with a fixing piece of the connector in a plugging way;
the exposed portion is located at the mating portion to make conductive contact with the fixture.
The connector has the advantages that the fixing piece is utilized to realize short circuit with exposed parts of other contact element modules of the same connector, the structure is simple, and the processing is convenient.
Furthermore, the exposed part is provided with at least two positions so as to be respectively in conductive contact with different parts of the fixing piece.
The contact module has the beneficial effect of ensuring reliable short circuit among the grounding contact pins of the contact modules.
Furthermore, a part of the exposed part is positioned on the side surface of the contact module opposite to the side surface of the differential pair on which one end far away from the connecting pin is positioned;
the remaining exposed portion is located on a side of the contact module opposite the side where the connection pins are located.
The contact module has the beneficial effects that the reliable short circuit between the grounding contact pins of the contact modules is further ensured.
Furthermore, the matching part is a slot and is used for being matched with the first comb tooth structure on the fixing part in an inserting manner;
the exposed part is positioned on the slot wall of the slot.
The short circuit has the advantage of high reliability.
Furthermore, the two opposite slot walls of the slot are provided with the exposed parts.
The short circuit protection circuit has the advantage that the short circuit reliability is further improved.
Furthermore, the matching part is a convex structure and is used for being matched with a second comb tooth structure on the fixing part in an inserting manner;
the exposed portion is located on the protruding structure.
The short circuit has the advantage of high reliability.
Furthermore, the two sides of the protruding structure are respectively provided with the exposed parts, and the exposed parts on the two sides are respectively and electrically connected with the two adjacent tooth parts corresponding to the second comb tooth structure.
The short circuit protection circuit has the advantage that the short circuit reliability is further improved.
Further, the exposed portion is located outside the outermost ground pin.
The contact module has the advantages that the length of the grounding contact pin on the outermost side of the contact module is longer, the signal transmission performance of the contact module is not easy to guarantee, and the exposed part is arranged on the outer side of the grounding contact pin on the outermost side, so that the signal transmission performance of the contact module is guaranteed.
The technical scheme of the backplane connector in the invention is as follows: a backplane connector comprising:
the fixing piece is fixedly connected with each contact piece module;
a contact module, comprising:
an insulator;
the contact piece comprises a differential pair and a grounding contact pin which are arranged in the insulator;
the ground pin has an exposed portion exposed relative to the insulator for shorting with exposed portions of other contact modules of the same connector.
The beneficial effects of the backplane connector in the invention are as follows: through the interconnection and conduction among the grounding contact pins of the contact modules, the contact modules form a common ground form, the crosstalk among the contact modules is effectively prevented, and the signal transmission performance of the backplane connector, such as crosstalk, differential loss and other indexes, can be effectively improved.
Further, the insulator is provided with a matching part used for being matched with a fixing piece of the connector in a plugging way;
the exposed portion is located at the mating portion to make conductive contact with the fixture.
The connector has the advantages that the fixing piece is utilized to realize short circuit with exposed parts of other contact element modules of the same connector, the structure is simple, and the processing is convenient.
Furthermore, the exposed part is provided with at least two positions so as to be respectively in conductive contact with different parts of the fixing piece.
The contact module has the beneficial effect of ensuring reliable short circuit among the grounding contact pins of the contact modules.
Furthermore, a part of the exposed part is positioned on the side surface of the contact module opposite to the side surface of the differential pair on which one end far away from the connecting pin is positioned;
the remaining exposed portion is located on a side of the contact module opposite the side where the connection pins are located.
The contact module has the beneficial effects that the reliable short circuit between the grounding contact pins of the contact modules is further ensured.
Furthermore, the matching part is a slot and is used for being matched with the first comb tooth structure on the fixing part in an inserting manner;
the exposed part is positioned on the slot wall of the slot.
The short circuit has the advantage of high reliability.
Furthermore, the two opposite slot walls of the slot are provided with the exposed parts.
The short circuit protection circuit has the advantage that the short circuit reliability is further improved.
Furthermore, the matching part is a convex structure and is used for being matched with a second comb tooth structure on the fixing part in an inserting manner;
the exposed portion is located on the protruding structure.
The short circuit has the advantage of high reliability.
Furthermore, the two sides of the protruding structure are respectively provided with the exposed parts, and the exposed parts on the two sides are respectively and electrically connected with the two adjacent tooth parts corresponding to the second comb tooth structure.
The short circuit protection circuit has the advantage that the short circuit reliability is further improved.
Further, the exposed portion is located outside the outermost ground pin.
The contact module has the advantages that the length of the grounding contact pin on the outermost side of the contact module is longer, the signal transmission performance of the contact module is not easy to guarantee, and the exposed part is arranged on the outer side of the grounding contact pin on the outermost side, so that the signal transmission performance of the contact module is guaranteed.
Drawings
Fig. 1 is a schematic structural view of a backplane connector assembled in accordance with embodiment 1 of the contact module of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a schematic structural view of embodiment 1 of the contact module of the present invention;
FIG. 4 is a schematic diagram of the structure of the contacts in the contact module of FIG. 1;
FIG. 5 is an enlarged view at B in FIG. 2;
FIG. 6 is an enlarged view taken at A in FIG. 2;
FIG. 7 is a schematic structural view of the fixing member of FIG. 1;
in the figure: 1. the connector comprises a plug shell, a connector shell, a fixing piece, a connector shell, a second contact module, a connector shell, a connector.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
Embodiment 1 of the contact module of the present invention: as shown in fig. 1, 2 and 4, the contact module includes an insulator 14 and a contact, the contact includes a differential pair 10 and a ground pin 11, one end of the differential pair 10 and one end of the ground pin 11 are provided with a connecting pin 7, and one end of the differential pair 10 away from the connecting pin 7 and the connecting pin 7 respectively correspond to two adjacent side surfaces of the insulator 14 and extend out of the insulator 14.
As shown in fig. 3, the side of the insulator 14 opposite to the end of the differential pair 10 remote from the connecting pin 7 is provided with a protruding structure 6, and the protruding structure 6 is used for plugging and matching with the second comb tooth structure 12 on the fixing element 2. The side face of the insulator 14 opposite to the connecting pin 7 is provided with a slot 13, the slot 13 is provided with two positions and arranged oppositely, the slot 13 arranged oppositely is matched with the first comb tooth structure 5 on the fixing part 2 in an inserting way, and the slot 13 and the protruding structure 6 respectively form a matching part of the insulator 14.
As shown in fig. 5 and 6, grounding pin 11 is disposed in insulator 14 and has an exposed portion exposed with respect to insulator 14, the exposed portion including a first exposed portion 8 and a second exposed portion 9 respectively located at protruding structure 6 and slot 13 of insulator 14, and is embodied as follows: the protruding structure 6 has two opposite side surfaces contacting with the teeth of the second comb tooth structure 12 of the fixed member 2, each side surface is provided with two first exposed portions 8, and the first exposed portions 8 are used for being electrically connected with the fixed member 2 through the teeth of the second comb tooth structure. The slot 13 has two opposite slot walls, the two opposite slot walls are respectively provided with a second exposed portion 9, and the second exposed portion 9 is in the form of a V-shaped metal sheet with an opening opposite to each other, so as to ensure reliable conductive connection with the tooth portion of the first comb tooth portion. Depending on the arrangement of ground pins 11, first exposed portion 8 and second exposed portion 9 are located outside of outermost ground pins 11.
Embodiment 2 of the contact module of the present invention: the present embodiment is different from embodiment 1 in that, instead of implementing the short circuit between the ground pins of each contact module by a fixing member, a conductive link is provided, the extending direction of the conductive link is the same as the arrangement direction of the contact modules when in use, and the short circuit between the ground pins of the contact modules is implemented by the conductive link. The fixing elements are only used to achieve the fixing of the contact module when used in cooperation with the fixing elements of the backplane connector.
Embodiment 3 of the contact module of the present invention: the difference between this embodiment and specific embodiment 1 is that the exposed portion faces the adjacent contact module, and the exposed portions of the adjacent contact modules on both sides are in direct contact, so as to realize short circuit between the grounding pins of the contact modules. The fixing elements are only used to achieve the fixing of the contact module when used in cooperation with the fixing elements of the backplane connector.
Embodiment 4 of the contact module of the present invention: the present embodiment differs from embodiment 1 in that the grounding pin has only a first exposed portion, and the contact is in conductive contact with the fixing member only through the first exposed portion.
Embodiment 5 of the contact module of the present invention: the present embodiment is different from embodiment 1 in that the ground pin has only the second exposed portion, and the contact is in conductive contact with the fixed member only through the second exposed portion.
Embodiment 6 of the contact module of the present invention: the difference between this embodiment and embodiment 1 is that two protruding structures are disposed on the side surface of the insulator opposite to the end of the differential pair far from the connecting pin, the two protruding structures both have exposed portions, and the second comb tooth structure is in conductive contact with the two exposed portions at the same time.
Embodiment 7 of the contact module of the present invention: the difference between this embodiment and the specific embodiment 1 is that an exposed structure is disposed on only one side of the slot wall.
Embodiment 8 of the contact module of the present invention: the difference between this embodiment and the specific embodiment 1 is that the exposed portion is only disposed on one side of the protruding portion, and when the protruding portion is matched with the fixing member, one tooth portion of the two-comb structure of the fixing member is only in conductive contact with the grounding pin of one contact module.
Embodiment 9 of the contact module of the present invention: the difference between this embodiment and specific embodiment 1 is that the exposed portion faces the adjacent contact module, and is in direct contact with the exposed portions of the adjacent contact modules on both sides, so as to realize short circuit between the grounding pins of the contact modules, and the exposed portion is located on the inner side of the outermost grounding pin. The fixing elements are only used to achieve the fixing of the contact module when used in cooperation with the fixing elements of the backplane connector.
Embodiment 1 of the backplane connector of the present invention: the backplane connector comprises a plug housing 1, a fixing part 2 and six contact modules, wherein each contact module comprises three first contact modules 4 and three second contact modules 3, and the same contact modules are arranged at intervals. The structure of the contact module is the same as that of the above-mentioned embodiment of the contact module, and is not described again.
The plug housing 1 has six insertion grooves into which the ends of the corresponding contact modules, which correspond to the connection pins 7, are inserted.
As shown in fig. 7, the fixing element 2 is an L-shaped structure, one end of the L-shape is a second comb structure 12, and the second comb structure is inserted into and matched with the protruding structure 6 on the insulator 14, the other end of the L-shape is a flange, the flange forms a first comb structure 5, and is inserted into and matched with the slot 13 on the insulator 14, and the first comb structure 5 and the second comb structure 12 respectively form different parts of the fixing element 2. The fitting of the fixing member 2 with the plug housing 1 fixes the position of the contact module.

Claims (7)

1. A contact module, comprising:
an insulator;
the contact piece comprises a differential pair and a grounding contact pin which are arranged in the insulator;
the method is characterized in that:
one end of the differential pair and one end of the grounding contact pin are provided with connecting contact pins, and one end of the differential pair, which is far away from the connecting contact pins, and the connecting contact pins respectively correspond to two adjacent side surfaces of the insulator and extend out of the insulator;
the grounding contact pin is provided with an exposed part exposed relative to the insulator, and the exposed part is used for being in short circuit with the exposed parts of other contact modules of the same backplane connector;
the insulator is provided with a matching part which is used for being in plug-in matching with a fixing piece of the backplane connector, and the fixing piece is used for being fixedly connected with each contact module of the backplane connector;
the exposed part is positioned at the matching part to be in conductive contact with the fixing piece;
the exposed part is provided with at least two parts which are respectively in conductive contact with different parts of the fixing piece; a part of the exposed part is positioned on the side surface of the contact module opposite to the side surface of the differential pair on which one end far away from the connecting pin is positioned; the remaining exposed portion is located on a side of the contact module opposite the side where the connection pins are located.
2. The contact module of claim 1, wherein:
the matching part is a slot and is used for being matched with the first comb tooth structure on the fixing part in an inserting manner;
the exposed part is positioned on the slot wall of the slot.
3. The contact module of claim 2, wherein:
the exposed parts are arranged on two opposite slot walls of the slot.
4. The contact module of claim 1, wherein:
the matching part is a convex structure and is used for being matched with the second comb tooth structure on the fixing part in an inserting manner;
the exposed portion is located on the protruding structure.
5. The contact module of claim 4, wherein:
the two sides of the protruding structure are respectively provided with the exposed parts, and the exposed parts on the two sides are respectively and electrically connected with the two adjacent tooth parts corresponding to the second comb tooth structure.
6. The contact module of claim 1, wherein:
the exposed portion is located outside of the outermost ground pin.
7. A backplane connector comprising:
the fixing piece is fixedly connected with each contact piece module;
the method is characterized in that:
further comprising at least two contact modules according to any of claims 1-6.
CN202010318585.7A 2020-04-21 2020-04-21 Contact module and backplane connector using same Active CN111525345B (en)

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Application Number Priority Date Filing Date Title
CN202010318585.7A CN111525345B (en) 2020-04-21 2020-04-21 Contact module and backplane connector using same

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CN111525345B true CN111525345B (en) 2022-01-25

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112636090B (en) * 2020-11-30 2022-04-22 中航光电科技股份有限公司 Shielding sheet, terminal module using the same and connector
CN114639979A (en) * 2022-02-18 2022-06-17 鹤山市得润电子科技有限公司 Connector, connector module and electronic equipment

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CN110600943A (en) * 2019-08-21 2019-12-20 中航光电科技股份有限公司 Shielding plate assembly, contact element module and high-speed electric connector
CN110838635A (en) * 2019-11-14 2020-02-25 立讯精密工业股份有限公司 Electrical connector
CN210129629U (en) * 2019-06-24 2020-03-06 泰科电子(上海)有限公司 Socket connector, plug connector and connector assembly

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Publication number Priority date Publication date Assignee Title
CN103378494A (en) * 2012-04-13 2013-10-30 Fci公司 Electrical connector, lead frame assembly and ground plate
CN205178171U (en) * 2015-11-24 2016-04-20 富加宜连接器（东莞）有限公司 High -speed signal transmits back panel connector
CN107275883A (en) * 2016-04-07 2017-10-20 通普康电子（昆山）有限公司 Electric connector and its differential signal group
CN210129629U (en) * 2019-06-24 2020-03-06 泰科电子(上海)有限公司 Socket connector, plug connector and connector assembly
CN110600943A (en) * 2019-08-21 2019-12-20 中航光电科技股份有限公司 Shielding plate assembly, contact element module and high-speed electric connector
CN110838635A (en) * 2019-11-14 2020-02-25 立讯精密工业股份有限公司 Electrical connector

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