CN211579048U

CN211579048U - Connecting assembly

Info

Publication number: CN211579048U
Application number: CN201922501720.7U
Authority: CN
Inventors: 王国栋; 罗昊; 姚腾飞
Original assignee: Shennan Circuit Co Ltd
Current assignee: Shennan Circuit Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-25
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a connecting assembly, which comprises a connector, a plurality of cables and a cable fixing piece, wherein the connector is provided with a connecting wire which is exposed on one surface of the connector, the cable fixing piece is positioned on one side of the connector with the connecting wire and is provided with a first through hole which corresponds to the position of the connecting wire and is matched with the diameter of the cable; the cable is inserted into the first through hole from the side of the cable fixing piece far away from the connector and is fixed with the cable fixing piece, and the part inserted into the first through hole is connected with the connecting conducting wire. Therefore, the cable is fixed, and can be prevented from falling off, and in addition, the cable fixing piece has a simple structure, and can reduce the manufacturing cost compared with the traditional special connector.

Description

Connecting assembly

Technical Field

The utility model relates to a cable connection field especially relates to a coupling assembling of fastening connecting cable.

Background

With the continuous development of high-speed communication, coaxial cables (cable) are increasingly applied to interconnection between boards in the same cabinet, and meanwhile, high-speed transmission in Printed Circuit Board (PCB) boards based on etched lines is affected by problems such as high-speed transmission loss and jitter, and the application of interconnection of cable in boards also begins to occur. Traditional cable line need be at both ends and do the plug structure, and is not only complicated, increases the cost, has very big difficulty when many cable lines plug simultaneously, especially in complicated backplate is used, and the cable plug degree of difficulty of bundling is bigger, and because self weight influences, still can have the risk of droing. The utility model provides a cable's connection method makes things convenient for cable's connection, because do not need professional producer to make cable line special connector in this method, and many producers of cable group based on the mounting preparation can all make, can reduce cost by a wide margin to the reliability of application has been improved.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a connecting assembly to realize the fastening connection of cable, and reduce the cost of manufacture, improve and use the reliability.

In order to solve the technical problem, the utility model discloses a technical scheme be: there is provided a connection assembly comprising:

a connector having a connecting wire therein, the connecting wire being exposed at a surface of the connector;

the cable fixing piece is positioned on one side of the connector, which is provided with a connecting wire, and is provided with a first through hole which corresponds to the connecting wire in position and is matched with the diameter of the cable;

wherein the cable is inserted into the first through hole from a side of the cable holder away from the connector to be fixed to the cable holder, and a portion inserted into the first through hole is connected to the connecting wire.

The utility model has the advantages that: be different from prior art's condition, the utility model provides a coupling assembling, coupling assembling specifically will through the cable mounting the cable with central wire in the connector is connected, because the utility model discloses a cable is connected through the cable mounting, when cable quantity is more, can prevent that it from coming off, because the cable mounting simple structure of this application compares in traditional special connector, can reduce the cost of manufacture in addition to further improve the reliability of using.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of a connection assembly of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the connection assembly of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

The terms "first," "second," "third," and the like in the description and in the claims, and in the drawings described above, are used for distinguishing between different objects and not necessarily for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, system, article, or apparatus.

The present invention will be described in detail with reference to the accompanying drawings and examples.

Please refer to fig. 1, which is a schematic structural diagram of a first embodiment of the connecting assembly of the present invention. The method comprises the following steps: a connector 11, a plurality of cables 12 and a cable fixing member 13; the connector 11 has a connecting wire 111 therein, and the connecting wire 111 is exposed on a surface of the connector 11; the cable fixing member 13 is located on the side of the connector 11 having the connecting wire 111, and has a first through hole 14 corresponding to the connecting wire 111 and matching the diameter of the cable 12. The cable 12 is inserted into the first through hole 14 from the side of the cable holder 13 away from the connector 11 to be fixed to the cable holder 13, and a portion inserted into the first through hole 14 is connected to the connecting wire 111.

In this embodiment, the cable 12 is divided into a first portion and a second portion, wherein the first portion is a portion inserted into the first through hole 14, and the second portion is a portion outside the first through hole 14. In this embodiment, in order to provide good electrical conductivity between the shielding layer 123 and the cable holder 13, the first through hole 14 needs to be in contact with the shielding layer 123, that is, when the first portion of the cable 12 is inserted into the first through hole 14, the first portion of the protective layer 124 is removed to expose the shielding layer 123, and in order to improve the firmness between the cable 12 and the cable holder 13, the inner diameter of the first through hole 14 is matched with the outer diameter of the shielding layer 123.

In this embodiment, the cable fixing member 13 is made of a metal plate, which may be a rectangular metal plate or a circular metal plate, as long as the cable fixing member can fix the cable 12, and the specific shape is not limited.

In the present embodiment, the cable 12 passes through the cable fixing member 13 to be directly connected to the connecting conductor 111, specifically, the central conductor 121 in the cable 12 is connected to the connecting conductor 111 in the connector 11, and in order to enable the cable 12 to be connected to the connecting conductor 111, the connecting conductor 111 is higher than a surface of the connector 11 close to the cable fixing member 13, that is, the connecting conductor 111 protrudes from a surface of the connector 11; or the connecting wires 111 are flush with a surface of the connector 11 near the cable holder 13.

The cable fixing member 13 may be welded to the connector 11 by welding, and it should be noted that after the cable 12 is inserted into the first through hole 14 of the cable fixing member 13, one end of the cable 12 inserted into the first through hole 14 needs to be ground to be flush with the surface of the cable fixing member 13, if the end protrudes out of the surface of the cable fixing member 13, the end may be welded unevenly during welding, and if the end is recessed in the surface of the cable fixing member 13, the end may not be easily connected to the connecting wire 111 of the connector 11.

Fig. 2 is a schematic structural diagram of a second embodiment of the connecting assembly according to the present invention. Compared with the first embodiment, the difference is that: the connector 11 further includes a pin 112, the pin 112 is connected to the connecting wire 111 of the connector 11 and protrudes from a surface of the connector 11 close to the cable fixing member 13, the pin 112 is used for being connected to the cable 12, and specifically, the pin 112 is connected to the central wire 121 of the cable 12. The circuit board 15 is provided with a second through hole 16 corresponding to the first through hole 14, the circuit board 15 is located between the connector 11 and the cable fixing member 13, the contact pin 112 is inserted into the second through hole 16, a second dielectric layer 162 is filled in the second through hole 16, so that the contact pin 112 is fixed in the second through hole 16, in this embodiment, in order to facilitate the alignment connection between the contact pin 112 and the central conductor 121 of the cable 12, the center of the first through hole 14 coincides with the center of the second through hole 16.

The wiring board further includes a ground layer 151, the sidewall of the second via hole 16 has a metal layer 161 to metalize the second via hole 16, and the metal layer 161 is connected to the ground layer 151. In addition, since the cable 12 generates electromagnetic waves during high-speed signal transmission, which affects the integrity of the signal, the shielding layer 123 of the cable 12 is connected to the ground layer 151 of the circuit board 15. Specifically, the shielding layer 123 of the cable 12 is connected to the metal layer 161 on the sidewall of the second through hole 16 of the circuit board 15, so that the shielding layer 123 of the cable 12 is connected to the ground layer 151 of the circuit board 15, based on which the inner diameter of the second through hole 16 is the same as the outer diameter of the first dielectric layer 122 of the cable 12, and when the cable 12 is butted with the contact pin 112 in the second through hole 16 of the circuit board 15, the shielding layer 123 of the cable 12 is just connected to the metal layer 161 on the sidewall of the second through hole 16. In the present embodiment, in order to further shield the interference of the electromagnetic wave, the thickness of the metal layer 161 of the second through hole 16 is the same as that of the shielding layer 123 of the cable 12.

In the present application, the cross-sectional area of the contact pin 112 is circular, so that the round contact pin can increase the contact area with the central conductor 121 of the cable 12, thereby improving the connection firmness, compared with a general pointed contact pin.

In this embodiment, since the overall cross-sectional area of the cable 12 is large, after the cable 12 is fixed in the cable holder 13, one end of the cable 12 needs to be ground to be flush with the cable holder 13 to prevent the cable holder 13 from being fixed or misaligned on the circuit board 15. In order to connect the pin 112 with the central conductor 121 of the cable 12, the pin 112 may protrude from the surface of the circuit board 15 close to the cable holder 13 or may be flush with the surface of the cable holder 13.

In addition, in order to fix the cable fixing member 13 on the circuit board 15, a pad 152 is disposed on a surface of the circuit board 15 close to the cable fixing member 13, the pad 152 is connected to the metal layer 161 on the sidewall of the second through hole 16, and the cable fixing member 13 is soldered on the circuit board 15 through the pad 152, so as to further fix and connect the central conductor 121 of the cable 12 to the contact pin 112.

The connecting assembly of this embodiment is characterized in that the circuit board 15 is fixedly connected to the connector 11, and the pin 112 of the connector 11 passes through the second through hole 16 of the circuit board 15, the cable fixing member 13 is used to fixedly connect and solder the cable 12 to the circuit board 15, and the central conductor 121 of the cable 12 is connected to the pin 112 of the connector 11, and the cable 12 is soldered to the circuit board 151 through the cable fixing member 13, so as to prevent the cable 12 from falling off due to gravity, and since the connector 11 is easy to manufacture, compared with the conventional connecting member for a cable plugging structure, the connecting assembly has lower cost and is more feasible.

In the application, it is fixed with the cable through the cable mounting, fixes the circuit board in the connector again, fixes the cable mounting through the welded mode at last on the circuit board, will with through connector and cable mounting the circuit board with cable fixed connection to make the signal transmission of circuit board to the contact pin of connector, the contact pin of rethread connector with signal transmission to cable, even if this quantity of the cable of connecting is more, and gravity is great, also can not follow drop on the circuit board. And because the connector is easy to manufacture, the cost is saved compared with the existing plugging structure of the cable, and the feasibility is higher.

In this embodiment, the connecting assembly only describes a part of related functional structures, and other functional structures are the same as those of the connecting assembly in the prior art and are not described herein again.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A connection assembly, comprising:

wherein the cable is inserted into the first through hole from a side of the cable holder away from the connector to be fixed with the cable holder, and a portion inserted into the first through hole is used for connection with the connection wire.

2. The connection assembly of claim 1, wherein the connection conductor is elevated above a surface of the connector proximate the cable mount; or

The connecting lead is flush with a surface of the connector close to the cable fixing piece.

3. The connection assembly of claim 1, wherein the connector further comprises:

the contact pin is connected with the connecting lead, protrudes out of one surface of the connector close to the cable fixing part and is used for being connected with the cable;

the circuit board is positioned between the connector and the cable fixing piece and used for providing high-speed signals for the cable;

the circuit board is provided with a second through hole corresponding to the first through hole in position, and the contact pin is inserted into the second through hole.

4. The connection assembly according to claim 3, wherein the cable includes a first portion inserted into the first through hole and a second portion exposed outside the first through hole, the first portion of the cable including: the shielding layer is arranged on the central conducting wire and sequentially wraps the first dielectric layer and the shielding layer; the second portion of the cable comprises: the shielding layer is arranged on the central wire and comprises a first dielectric layer, a shielding layer and a protective layer which are sequentially wrapped on the central wire; the circuit board comprises a ground layer;

the inner diameter of the first through hole is matched with the outer diameter of the shielding layer of the cable, the shielding layer of the first part of the cable is attached to the side wall of the first through hole, and the cross section of the first part of the cable is flush with one surface, close to the circuit board, of the cable fixing piece;

the inner diameter of the second through hole is matched with the outer diameter of the first medium layer of the cable, the side wall of the second through hole is provided with a metal layer, the shielding layer of the cable is connected with the metal layer of the side wall of the second through hole, and the ground layer of the circuit board is connected with the metal layer of the side wall of the second through hole.

5. The connection assembly of claim 4, wherein the pin is circular in cross-section, is inserted into the second through hole, and is connected with the center conductor of the cable;

and a second dielectric layer is filled in the second through hole so as to fix the contact pin in the second through hole.

6. The connecting assembly of claim 5, wherein the pin is inserted into the second through hole and is higher than a surface of the circuit board away from the connector; or

Flush with a surface of the circuit board away from the connector.

7. The connecting assembly of claim 5, wherein a surface of the circuit board adjacent to the cable holder has a pad connected to the metal layer of the sidewall of the second through hole, and the cable holder is soldered to the circuit board via the pad to fixedly connect the central conductor of the cable to the pin.