Connecting assembly and method of making the same

Abstract

The present invention provides a connection assembly and a manufacturing method thereof, wherein the connection assembly includes a connector, a plurality of cables and a cable fixing part, wherein the connector has a connection wire, and the connection wire is exposed on a surface of the connector, and the cable fixing part is located on a side of the connector having the connection wire, and has a first through hole corresponding to the position of the connection wire and matching the diameter of the cable; wherein the cable is inserted into the first through hole from the side of the cable fixing part away from the connector and fixed to the cable fixing part, and the part inserted into the first through hole is connected to the connection wire. By fixing the cable in this way, it can be prevented from falling off, and in addition, since the cable fixing part of the present application has a simple structure, the manufacturing cost can be reduced compared to the traditional dedicated connector.

Description

Technical Field

[0001] The present invention relates to the field of cable connection, and in particular to a connection component for fastening and connecting cables and a manufacturing method thereof. Background Art

[0002] With the continuous development of high-speed communications, the application of coaxial cables (cables) for interconnecting boards within the same cabinet is increasing. At the same time, the high-speed electrical transmission within the printed circuit board (PCB) based on etched lines is affected by high-speed transmission loss, jitter and other problems, and the application of intra-board cable interconnection has also begun to appear. Traditional cable lines require plug-in and unplugging structures at both ends, which is not only complicated and increases costs, but also very difficult to plug and unplug multiple cable lines at the same time. Especially in complex backplane applications, bundled cables are more difficult to plug and unplug, and there is a risk of falling off due to their own weight. The present invention provides a cable connection method, which facilitates the connection of cables. Since the method does not require professional manufacturers to make special connectors for cable lines, and many manufacturers can make cable lines based on fixings, it can greatly reduce costs and improve the reliability of applications. Summary of the invention

[0003] The present invention mainly provides a connection component and a manufacturing method thereof, so as to realize the fastening connection of cables, reduce the manufacturing cost and improve the application reliability.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is to provide a connection component, including:

[0005] A connector, wherein the connector has a connecting wire, and the connecting wire is exposed on a surface of the connector;

[0006] A plurality of cables and cable fixings, wherein the cable fixings are located on a side of the connector having a connecting wire and have a first through hole corresponding to the position of the connecting wire and matching the diameter of the cable;

[0007] The cable is inserted into the first through hole from a side of the cable fixing piece away from the connector and fixed to the cable fixing piece, and the portion inserted into the first through hole is connected to the connecting wire.

[0008] In order to solve the above technical problems, another technical solution adopted by the present invention is: a method for manufacturing a connection component, comprising:

[0009] Providing a plurality of cables, metal plates and connectors used in conjunction with the cables, wherein the connectors have connecting wires;

[0010] A first through hole matching the diameter of the cable is provided at a position of the metal plate corresponding to the connecting wire to form a cable fixing member;

[0011] Inserting the plurality of cables into the first through holes from one side of the cable fixing member and fixing them to the cable fixing member;

[0012] The cable fixing member is arranged above the connector, and one end of the cable inserted into the first through hole is connected to the connecting wire in the connector.

[0013] The beneficial effects of the present invention are as follows: Different from the prior art, the present invention provides a connection component and a method for manufacturing the same, wherein the connection component specifically connects the cable to the center conductor in the connector through a cable fixing member. Since the cables of the present invention are connected through a cable fixing member, when the number of cables is large, they can be prevented from falling off. In addition, since the cable fixing member of the present application has a simple structure, compared with a traditional dedicated connector, the manufacturing cost can be reduced and the reliability of the application can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a first embodiment of a connection assembly of the present invention;

[0015] Figure 2 is a structural schematic diagram of a second embodiment of a connection assembly of the present invention;

[0016] Figure 3 It is a structural schematic diagram of a first embodiment of a method for manufacturing a connection assembly of the present invention;

[0017] Figure 4 is a structural schematic diagram of a second embodiment of a method for manufacturing a connection assembly of the present invention;

[0018] Figure 5 It is a structural schematic diagram of a third embodiment of the method for manufacturing a connecting component of the present invention. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0020] The terms "first", "second", "third", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0021] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0022] See also Figure 1 , is a schematic diagram of the structure of the first embodiment of the connection component of the present invention. It includes: a connector 11, a plurality of cables 12 and a cable fixing part 13; wherein the connector 11 has a connecting wire 111, and the connecting wire 111 is exposed on a surface of the connector 11; the cable fixing part 13 is located on a side of the connector 11 having the connecting wire 111, and has a first through hole 14 corresponding to the position of the connecting wire 111 and matching the diameter of the cable 12. wherein the cable 12 is inserted into the first through hole 14 from the side of the cable fixing part 13 away from the connector 11 and fixed to the cable fixing part 13, and the part inserted into the first through hole 14 is connected to the connecting wire 111.

[0023] The cable 12 includes a central conductor 121 and a first dielectric layer 122, a shielding layer 123 and a protective layer 124 that sequentially wrap the central conductor 121. In this embodiment, the cable 12 is divided into a first part and a second part, wherein the first part is a part inserted into the first through hole 14, and the second part is a part outside the first through hole 14. In this embodiment, in order to ensure good electrical conductivity between the shielding layer 123 and the cable fixture 13, the first through hole 14 needs to be in contact with the shielding layer 123, that is, when the first part of the cable 12 is inserted into the first through hole 14, the protective layer 124 of the first part is removed to expose the shielding layer 123. In order to improve the firmness between the cable 12 and the cable fixture 13, the inner diameter of the first through hole 14 matches the outer diameter of the shielding layer 123.

[0024] In this embodiment, the cable fixing member 13 is made of a metal plate, which can be a rectangular metal plate or a circular metal plate. As long as it can fix the cable 12 , the specific shape is not limited.

[0025] In this embodiment, the cable 12 passes through the cable fixing member 13 and is directly connected to the connecting wire 111. Specifically, the central wire 121 in the cable 12 is connected to the connecting wire 111 in the connector 11. In order to enable the cable 12 to be connected to the connecting wire 111, the connecting wire 111 is higher than a surface of the connector 11 close to the cable fixing member 13, that is, the connecting wire 111 protrudes from the surface of the connector 11; or the connecting wire 111 is flush with a surface of the connector 11 close to the cable fixing member 13.

[0026] The cable fixing part 13 can be welded to the connector 11 by welding. It should be noted that after the cable 12 is inserted into the first through hole 14 in the cable fixing part 13, one end of the cable 12 inserted into the first through hole 14 needs to be ground to make it flush with the surface of the cable fixing part 13. If it protrudes from the surface of the cable fixing part 13, it will cause uneven welding during welding. If it is recessed in the surface of the cable fixing part 13, it will not be easy to connect with the connecting wire 111 in the connector 11.

[0027] See also Figure 2 , is a schematic diagram of the structure of the second embodiment of the connection assembly of the present invention. Compared with the first embodiment, the difference is that: it also includes a circuit board 15 for providing high-speed signals to the cable 12. In this embodiment, the connector 11 also includes a pin 112, which 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 to connect to the cable 12. Specifically, the pin 112 is connected to the center wire 121 of the cable 12. The circuit board 15 has a second through hole 16 corresponding to the position of the first through hole 14. The circuit board 15 is located between the connector 11 and the cable fixing member 13, and the pin 112 is inserted into the second through hole 16. The second through hole 16 is filled with a second dielectric layer 162 to fix the pin 112 in the second through hole 16. In this embodiment, in order to facilitate the alignment and connection between the pin 112 and the center wire 121 of the cable 12, the center of the first through hole 14 and the center of the second through hole 16 coincide.

[0028] The circuit board also includes a ground layer 151, and the side wall of the second through hole 16 has a metal layer 161, so that the second through hole 16 is metallized and has conductivity, and the metal layer 161 is connected to the ground layer 151. In addition, since the cable 12 generates electromagnetic waves when performing high-speed signal transmission, thereby affecting 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 of the side wall of the second through hole 16 of the circuit board 15, thereby connecting the shielding layer 123 of the cable 12 to the ground layer 151 of the circuit board 15. Based on this, 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. When the cable 12 is connected to the 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 of the side wall of the second through hole 16. In this embodiment, in order to further shield the interference of electromagnetic waves, the thickness of the metal layer 161 of the second through hole 16 is the same as the thickness of the shielding layer 123 of the cable 12 .

[0029] In the present application, the cross-sectional area of ​​the pin 112 is circular, so compared with a general pointed pin, the round-headed pin of the present application can increase the contact area with the central conductor 121 of the cable 12, thereby improving the firmness of the connection.

[0030] In this embodiment, since the overall cross-sectional area of ​​the cable 12 is relatively large, after the cable 12 is fixed in the cable fixing member 13, one end of the cable 12 needs to be ground to be flush with the cable fixing member 13 to prevent the cable fixing member 13 from being loosely fixed or misaligned when being fixed on the circuit board 15. In order to enable the pin 112 to be connected to 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 fixing member 13, or may be flush with the surface of the cable fixing member 13.

[0031] In addition, in order to facilitate fixing the cable fixing part 13 on the circuit board 15, a soldering pad 152 is provided on a surface of the circuit board 15 close to the cable fixing part 13, and the soldering pad 152 is connected to the metal layer 161 on the side wall of the second through hole 16. The cable fixing part 13 is welded to the circuit board 15 through the soldering pad 152 to further fix the center conductor 121 of the cable 12 with the pin 112.

[0032] The connection assembly described in this embodiment is configured such 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 fixes and welds the cable 12 to the circuit board 15, and the center conductor 121 of the cable 12 is connected to the pin 112 of the connector 11. The cable 12 is welded to the circuit board 151 through the cable fixing member 13 to prevent the cable 12 from falling off due to gravity. In addition, since the connector 11 is easy to manufacture, the cost of the connector is lower than that of the traditional connector for the cable plug-in structure, and therefore, it is more feasible.

[0033] See also Figure 3 , is a structural schematic diagram of the first embodiment of the cable manufacturing method of the present application.

[0034] Specifically include:

[0035] Step S301: providing a plurality of cables, metal plates and connectors for use with the cables.

[0036] Specifically, the cable is a coaxial cable, specifically including a center conductor and a first dielectric layer wrapping the center conductor, a shielding layer wrapping the first dielectric layer, and a protective layer wrapping the shielding layer, wherein the shielding layer is a metal shielding layer. In this embodiment, a connecting wire is provided in the middle of the connector, and the connecting wire is exposed on a surface of the connector.

[0037] Step S302: a first through hole matching the diameter of the cable is provided at a designated position of the metal plate to form a cable fixing member.

[0038] The connector is customized according to the number of cables that need to be connected, and the number of exposed connecting wires of the connector is consistent with the number of cables. A first through hole is provided at the position of the metal plate corresponding to the connecting wire. In this embodiment, in order to prevent the electromagnetic waves generated by the signal transmission of the cable from affecting the signal, it is necessary to have good electrical conductivity between the shielding layer of the cable and the cable fixing part. Therefore, the inner diameter of the first through hole needs to match the outer diameter of the shielding layer of the cable.

[0039] Step S303: inserting the plurality of cables into the first through holes from one side of the cable fixing member and fixing the cables to the cable fixing member.

[0040] Specifically, see Figure 4 , is a structural diagram of the second embodiment of the cable manufacturing method of the present application, step S303 specifically includes:

[0041] Step S3031: removing the outer protective layer of one end of the cable to expose the shielding layer of the cable.

[0042] In this embodiment, in order to ensure good electrical conductivity between the shielding layer of the cable and the cable fixing part, the protective layer at one end of the cable is removed to expose the shielding layer, and then the end without the protective layer is inserted into the first through hole to make the shielding layer contact with the cable fixing part.

[0043] Step S3032: inserting the end of the cable with the shielding layer exposed into the first through hole and flush with the first surface of the cable fixing component.

[0044] In this embodiment, since the cable needs to be fixed to the connector and connected to the connecting wire in the connector after being inserted into the first through hole, the cable needs to protrude from the first surface of the cable fixing member or be flush with the first surface of the cable fixing member after being inserted into the first through hole, and cannot be recessed in the first through hole.

[0045] Step S3033: Disposing conductive glue around the cable on the second surface of the cable fixing member to fix the cable in the cable fixing member.

[0046] In addition, in order to strengthen the fixation between the cable and the cable fixing part and prevent the cable from falling off, when the cable is inserted into the first through hole, after the cable is inserted into the first through hole, the side of the cable fixing part close to the cable can be fixed around the first through hole by using conductive glue or high-temperature solder. In another embodiment, a layer of conductive glue can be applied on the shielding layer and then inserted into the through hole, so that the cable can be adhered to the first through hole of the cable fixing part according to the characteristics of the conductive glue; or in other embodiments, a layer of conductive glue can be applied on the shielding layer first, and after the cable is inserted into the through hole, conductive glue or high-temperature solder can be used to fix the cable around the first through hole.

[0047] Step S3034: grinding the cables on the first surface of the cable fixing member to make it flat.

[0048] Specifically, in order to ensure the flatness of the connection surface between the cable fixing part and the connector, after the cable is fixed to the cable fixing part, one end of the cable inserted into the first through hole needs to be grinded so that it is flush with the first surface of the cable fixing part. It should be noted that the center conductor of the cable needs to be fully exposed during the grinding process.

[0049] Step S304: disposing the cable fixing member above the connector, and connecting one end of the cable inserted into the first through hole to a connecting wire in the connector.

[0050] After the cable is fixed on the cable fixing part, the cable fixing part is then fixed on the connector. Specifically, the cable fixing part can be welded on the connector. It should be noted that when fixing, the center wire of the cable is connected to the connecting wire of the connector.

[0051] See also Figure 5 , is a structural schematic diagram of the third embodiment of the cable manufacturing method of the present application, which is different from the first embodiment in that: this embodiment also includes a circuit board, specifically:

[0052] Step S501: providing a circuit board having a second through hole; wherein the inner diameter of the second through hole matches the outer diameter of the first dielectric layer of the cable, and the pins in the connector protrude from a surface of the connector.

[0053] In this embodiment, the connector has a pin connected to the connecting wire, and the pin protrudes from the surface of the connector. In order to enable the circuit board to transmit signals through the pin, the pin of the connector is inserted into the second through hole of the circuit board. In addition, in order to further shield the electromagnetic waves generated by the cable from signal transmission, the circuit is secretly provided with a ground layer, and the shielding layer of the cable is connected to the ground layer. Specifically, a metal layer is provided on the side wall of the second through hole, the ground layer is connected to the metal layer, and the shielding layer is connected to the metal layer, and then the shielding layer is connected to the ground layer, so that the electromagnetic wave interference signal generated by the cable is transmitted to the ground layer.

[0054] In this embodiment, before step S302, the following steps are also included:

[0055] Step S502: Dispose the circuit board on a surface of the connector having the pins, and insert the pins into the second through holes of the circuit board.

[0056] Specifically, the circuit board is arranged on a surface of the connector having the pins, and the pins are inserted into the second through holes.

[0057] Step S503: filling the second through hole with a second dielectric layer to fix the pin in the second through hole.

[0058] Specifically, after the pin is inserted into the second through hole, in order to fix the pin, the second dielectric layer is filled in the second through hole. It should be noted that the second dielectric layer needs to be determined based on the diameter of the connector, the diameter of the second via hole, and the frequency of the signal to be transmitted. Specifically, the dielectric constant of the medium needs to be calculated, and a suitable filling material is selected as the second dielectric layer based on the dielectric constant and the feasibility of the process. The filling material can be various types of high-insulation materials such as paste and glue.

[0059] Step S504: grinding a surface of the second through hole away from the connector to make the tip of the pin visible.

[0060] After filling the second dielectric layer, the second through hole position on the surface of the circuit board away from the connector is ground to make the broken end of the pin visible. In order to enable the pin to dock with the center conductor of the cable, the pin can slightly protrude from the surface of the circuit board or be flush with the surface of the circuit board.

[0061] In this embodiment, since a circuit board is provided, the step S304 is specifically as follows:

[0062] Step S505: The cable fixing member is disposed above the circuit board, and one end of the cable inserted into the first through hole is connected to a pin in the connector.

[0063] The cable fixing part is arranged above the circuit board, and the center conductor of the cable is connected to the pin of the connector. Specifically, a solder pad is arranged on the surface of the circuit board away from the connector, and the cable fixing part is soldered to the position of the circuit board with the solder pad by reflow soldering, so as to fix the cable to the circuit board.

[0064] In the application, the cable is fixed by a cable fixing member, and then the circuit board is fixed in the connector, and finally the cable fixing member is fixed to the circuit board by welding, so that the circuit board and the cable are fixedly connected through the connector and the cable fixing member, and the signal of the circuit board is transmitted to the pin of the connector, and then the signal is transmitted to the cable through the pin of the connector, so that even if the number of connected cables is large and the gravity is large, they will not fall off the circuit board. And because the connector is easy to make, it is more cost-saving and more feasible than the existing cable plug-in structure.

[0065] In this embodiment, the connection component only describes part of the relevant functional structures, and other functional structures are the same as the functional structures of the connection components in the prior art, which will not be repeated here.

[0066] The above description is only an implementation mode of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A connection assembly, characterized in that: include: A connector, wherein the connector has a connecting wire, and the connecting wire is exposed on a surface of the connector; A plurality of cables and cable fixings, wherein the cable fixings are made of metal plates, are located on a side of the connector having a connecting wire, and have a first through hole corresponding to the position of the connecting wire and matching the diameter of the cable; The cable is inserted into the first through hole from a side of the cable fixing member away from the connector and fixed to the cable fixing member, and the portion inserted into the first through hole is used to be connected to the connecting wire; Wherein, the connector further comprises: A plug pin, the plug pin is connected to the connecting wire and protrudes from a surface of the connector close to the cable fixing member, and is used to connect to the cable; A circuit board, located between the connector and the cable fixing member, for providing high-speed signals to the cable; the circuit board includes a ground layer; The circuit board has a second through hole corresponding to the position of the first through hole, the side wall of the second through hole has a metal layer, the shielding layer of the cable is connected to the metal layer of the side wall of the second through hole, the ground layer of the circuit board is connected to the metal layer of the side wall of the second through hole, and the pin is inserted into the second through hole.

2. The connection assembly according to claim 1, characterized in that: The connecting wire is higher than a surface of the connector close to the cable fixing member; or The connecting wire is flush with a surface of the connector close to the cable fixing member.

3. The connection assembly according to claim 1, characterized in that: The cable comprises a first part inserted into the first through hole and a second part exposed outside the first through hole, wherein the first part of the cable comprises: a central conductor and a first dielectric layer and a shielding layer sequentially wrapping the central conductor; the second part of the cable comprises: a central conductor and a first dielectric layer, a shielding layer and a protective layer sequentially wrapping the central conductor; The inner diameter of the first through hole matches the outer diameter of the shielding layer of the cable, the shielding layer of the first part of the cable fits the side wall of the first through hole, and the cross section of the first part of the cable is flush with a surface of the cable fixing member close to the circuit board; An inner diameter of the second through hole matches an outer diameter of the first dielectric layer of the cable.

4. The connection assembly according to claim 3, characterized in that: The cross section of the plug pin is circular, and the plug pin is inserted into the second through hole and connected to the central conductor of the cable; The second through hole is filled with a second dielectric layer to fix the pin in the second through hole.

5. The connection assembly according to claim 4, characterized in that: The pin is inserted into the second through hole and is higher than a surface of the circuit board away from the connector; or The surface is flush with a surface of the circuit board away from the connector.

6. The connection assembly according to claim 4, characterized in that: A surface of the circuit board close to the cable fixing part has a pad connected to the metal layer of the side wall of the second through hole, and the cable fixing part is welded to the circuit board through the pad to fix the center conductor of the cable to the pin.

7. A method for manufacturing a connection assembly, characterized in that: include: Provide a plurality of cables, a circuit board with a second through hole, a metal plate and a connector used in conjunction with the cables, wherein the connector has a connecting wire and a pin connected to the connecting wire; the inner diameter of the second through hole matches the outer diameter of the first dielectric layer of the cable, and the pin in the connector protrudes from a surface of the connector; The circuit board is arranged on a surface of the connector having a pin, and the pin is inserted into the second through hole of the circuit board; wherein a ground layer is arranged in the circuit board, a metal layer is arranged on the side wall of the second through hole, the ground layer is connected to the metal layer, the shielding layer of the cable is connected to the metal layer, and then the shielding layer is connected to the ground layer; A first through hole matching the diameter of the cable is provided at a position of the metal plate corresponding to the connecting wire to form a cable fixing member; Inserting the plurality of cables into the first through holes from one side of the cable fixing member and fixing them to the cable fixing member; The cable fixing member is arranged above the connector, and one end of the cable inserted into the first through hole is connected to the connecting wire in the connector; The step of arranging the cable fixing member above the connector and connecting one end of the cable inserted into the first through hole with the connecting wire in the connector is specifically as follows: The cable fixing member is arranged above the circuit board, and one end of the cable inserted into the first through hole is connected with the pin in the connector.

8. The method according to claim 7, characterized in that The inserting the plurality of cables into the first through hole from one side of the cable fixing member and fixing the cables to the cable fixing member specifically includes: Removing the outer protective layer of one end of the cable to expose the shielding layer of the cable; Inserting one end of the cable with the shielding layer exposed into the first through hole and making it flush with the first surface of the cable fixing member or protruding from the first surface of the cable fixing member; Disposing conductive glue around the cable on the second surface of the cable fixing member to fix the cable in the cable fixing member; The cables on the first surface of the cable fixing member are ground to make them flat.

9. The method according to claim 8, characterized in that The circuit board is arranged on a surface of the connector having the pins, and the pins are inserted into the second through holes of the circuit board, and then further comprises: Filling a second dielectric layer in the second through hole to fix the pin in the second through hole; A surface of the second through hole away from the connector is ground to make the end of the pin visible.

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