Electrical connection module and connector

Abstract

The application provides an electric connection module and a connector, the electric connection module comprises a cable, two wires are arranged in the cable, the cable comprises a connection end, a bending section and an extension section which are sequentially connected, the wires located in the connection end are arranged side by side in a first plane, and the wires located in the extension section are arranged side by side in a second plane; two terminals each comprising a free end and a turning structure, the free ends of the two terminals are arranged side by side in a third plane, and the turning structure of each terminal is connected with the wire located in the connection end on the side away from the free end; the connector comprises the electric connection module. The electric connection module and the connector provided by the application solve the problem that the cable structure size of the existing electric connection module changes or even seriously deforms when the cable is bent, and the signal integrity of the cable is deteriorated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of connectors, in particular to an electrical connection module and a connector. BACKGROUND

[0002] Traditional high-speed connectors are generally composed of straight male connectors and bent female connectors, and the constituent parts of the straight male and the bent female are metal wires, metal shielding members and polymer material supports. The "fish eye" ends of the straight male and the bent female products composed of these parts are respectively pressed into the PCB board of the fixed product, and the straight male and the bent female are connected by plugging to complete the communication function. In addition to the loss of the high-speed connector itself, the fish eye via hole and the PCB wire will also cause the insertion loss of the transmission link to deteriorate, especially the loss of the wire on the PCB board. When the transmission rate of the transmission link is higher than 56Gps, the insertion loss index requirement becomes very high, and each link of the transmission link is trying to reduce the loss generated by each part. The use of high-speed backplane structure can effectively improve the insertion loss index of the transmission channel. Moreover, the high-speed backplane is generally composed of high-speed connectors, high-speed differential cables and high-speed connectors. In the transmission link of the backplane, the high-speed cable is used instead of part or all of the PCB wire. As is known to all, the insertion loss of the high-speed cable is obviously better than that of the PCB wire, so the insertion loss index of the transmission link has a great benefit.

[0003] At the same time, the application environment of the high-speed backplane usually needs the high-speed differential cable to be bent to meet the use requirements. When the high-speed differential cable needs to be bent in the direction that the paths of the two cores are inconsistent, such bending will deform the insulation part and the outer metal shielding of the high-speed differential cable, causing the structure size of the cable to change, especially the deformation of the core inside the bending radius is more serious, which increases the internal delay of the two signals and deteriorates the insertion loss index of the high-speed cable.

[0004] Therefore, it is necessary to provide a scheme to solve the problem of performance degradation of the product caused by the bending of the cable. SUMMARY

[0005] The present application relates to the technical field of connectors, in particular to an electrical connection module and a connector.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] An electrical connection module, the electrical connection module comprising:

[0008] A cable, which is internally provided with two wires arranged in close contact, comprises a connecting end, a bending segment and an extending segment connected in sequence, the wires arranged in parallel in a first plane at the connecting end, and the wires arranged in parallel in a second plane at the extending segment;

[0009] Two terminals, each comprising a free end and a flip structure connected in sequence, the free ends of the two terminals arranged in parallel in a third plane, and the flip structure of each terminal connected to the wire at the connecting end at a side away from the free end;

[0010] The first plane, the second plane and the third plane are perpendicular to each other.

[0011] In some embodiments of the present application, the flip structure comprises a first part, a second part and a third part connected in sequence.

[0012] The first part, the second part and the third part are perpendicular to each other, and the first part is connected to the free end at an end away from the second part, and the third part is connected to the corresponding wire.

[0013] In some embodiments of the present application, the free end of the terminal, the first part, the second part and the third part are all plate-shaped.

[0014] In some embodiments of the present application, the third parts of the two terminals are arranged in parallel on the first plane, the distance between the third parts of the two terminals and the distance between the free ends of the two terminals are both a, and the plate thicknesses of the free ends and the third parts of the two terminals are both b, a / b∈[1.3, 2].

[0015] In some embodiments of the present application, the first part and the second part are connected by a chamfer, and the second part and the third part are connected by a chamfer.

[0016] In some embodiments of the present application, the free end of each terminal is provided with a first protrusion.

[0017] The first protrusion on each terminal faces away from the other terminal.

[0018] In some embodiments of the present application, the first protrusion is arranged on the free end of the terminal close to the flip structure.

[0019] In some embodiments of the present application, the electrical connection module further comprises a first plastic package.

[0020] The connection between the cable and the terminal and the flip structure of the terminal are accommodated in the first plastic package.

[0021] The third part is provided with a second protrusion in some embodiments of the present application.

[0022] The second protrusion is exposed on the surface of the first plastic package.

[0023] To achieve the above object, the present application further provides the following technical solutions.

[0024] A connector, comprising:

[0025] An insulating base;

[0026] A conductive frame fixedly arranged in the interior of the insulating base;

[0027] A second plastic package connected with the conductive frame;

[0028] The above-mentioned electric connection module is fixedly arranged in the second plastic package.

[0029] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0030] 1. The electric connection module and the connector provided by the present application, through the turnover structure on the terminal, make the plane where the two terminals arranged side by side is perpendicular to the plane where one end of the two wires arranged side by side is located, and then make the other end of the two wires can be vertically bent together, avoiding the problem that the length of the two wires at the bending part is inconsistent, which leads to the inconsistent path length of the signals in the two wires, that is, the present application ensures that the transmission path length of the signals in the two terminals and the two corresponding wires connected therewith is consistent, avoids the signal delay problem caused by unreasonable structure design of the electric connection module, and then ensures the consistency and integrity of signal transmission, thereby solving the problem that the cable structure size of the existing electric connection module changes or even seriously deforms when the cable is bent, and then the signal integrity of the cable deteriorates.

[0031] 2. The terminal in the electric connection module and the connector provided by the present application can be obtained through cutting and stamping forming process on the same metal plate, so that the terminal containing the free end and the turnover structure has good integrity and easy processability, the good integrity of the terminal makes the terminal and the electric connection module have lower signal transmission impedance, and the easy processability also makes the overall processing and manufacturing cost of the entire electric connection module and the connector lower.

[0032] 3. The connector provided by the present application adopts the above-mentioned electric connection module, so that the overall structure layout design of the connector is more efficient and reasonable, and the space utilization is improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to make the technical solutions in the embodiments of the present application clearer, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some of the embodiments of the present application, and all other drawings obtained by those skilled in the art without any creative effort based on the embodiments of the present application shall fall within the protection scope of the present application.

[0034] Figure 1 Structure schematic diagram of the electric connection module provided for the first embodiment of the present application;

[0035] Figure 2 Structure schematic diagram of the electric connection module in another view of Figure 1

[0036] Figure 3 Structure schematic diagram of the connector provided for the second embodiment of the present application;

[0037] Figure 4 Structure schematic diagram of the A area in Figure 3

[0038] Structure schematic diagram of the connector provided for the third embodiment of the present application; Figure 5

[0039] Structure schematic diagram of the B area in Figure 6 Figure 5

[0040] Explanation of the main reference signs in the drawings of the present application specification is as follows:

[0041] 01-first plane; 02-second plane; 03-third plane;

[0042] 1-cable; 101-conductor; 11-connection end; 12-bent section; 13-extended section; 102-shielding layer;

[0043] 2-terminal; 21-free end; 211-first protrusion; 22-flip structure; 221-first part; 222-second part; 223-third part; 2231-second protrusion;

[0044] 3-insulating base;

[0045] 4-second plastic package. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be described clearly and completely as follows. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without any creative effort shall fall within the protection scope of the present application.​​​

[0047] The technical scheme of the present application provides an electrical connection module and a connector, which are described in detail below. It should be noted that the order of the following embodiments is not intended to limit the preferred order of the embodiments of the present application. Moreover, in the following embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0048] It should be noted that, as shown in Figures 1 to 6 The X-axis, Y-axis and Z-axis are perpendicular to each other, the plane on which the X-axis and Y-axis lie is the first plane 01, the plane on which the Y-axis and Z-axis lie is the second plane 02, and the first plane 01 and the second plane 02 are perpendicular to each other.

[0049] It should be noted that the "perpendicular" in the specification of the present application allows a deviation of ±10°, that is, in some specific embodiments, the angle between the X-axis, Y-axis and Z-axis is not necessarily 90°, but can be 90°±10°, and exemplarily can be 85° or 95°.

[0050] Embodiment 1

[0051] As shown in Figure 1 and Figure 2As shown, in some embodiments of the present application, an electrical connection module comprises: a cable 1, which is internally provided with two wires 101 arranged in close contact, the cable 1 comprises a connection end 11, a bending section 12 and an extension section 13 connected in sequence, the two wires 101 located at the connection end 11 are arranged side by side in a first plane 01, and the two wires 101 located at the extension section 13 are arranged side by side in a second plane 02; two terminals 2, each comprising a free end 21 and a flip structure 22 connected in sequence, the free ends 21 of the two terminals 2 are arranged side by side in a third plane 03, and the flip structure 22 of each terminal 2 is connected to the part of the wire 101 located at the connection end 11 on the side away from the free end 21 of the same terminal 2; wherein the first plane 01, the second plane 02 and the third plane 03 are perpendicular to each other. Specifically, the electrical connection module provided by the present application makes the plane where the two terminals 2 arranged side by side is perpendicular to the plane where one end of the two wires 101 arranged side by side through the flip structure on the terminal 2, and then makes the other end of the two wires 101 can be bent vertically together, avoiding the problem that the length of the two wires at the bending part is inconsistent, which causes the path length of the signals in the two wires to be inconsistent, that is, the present application ensures that the transmission path length of the signals in the two terminals 2 and the corresponding two wires 101 is consistent, avoids the signal delay problem caused by unreasonable structure design of the electrical connection module, and then ensures the consistency and integrity of signal transmission, thereby solving the problem that the cable structure size of the existing electrical connection module changes or even deforms seriously when the cable is bent, and then the signal integrity of the cable is deteriorated.

[0052] In some embodiments of the present application, the two terminals 2 are used to transmit a pair of signal differential pairs, and the presence of the flip structure 22 makes the transmission path distance of the pair of signal differential pairs equal when passing through the electrical connection module provided by the present application, thereby ensuring that the delay difference of the pair of signal differential pairs is smaller or even 0, thereby ensuring the consistency and integrity of signal transmission of the pair of signal differential pairs, so that the electrical connection module provided by the present application obtains better signal transmission effect.

[0053] As shown in Figure 1 and Figure 2 As shown, in some embodiments of the present application, the flip structure 22 comprises a first part 221, a second part 222 and a third part 223 connected in sequence; the first part 221, the second part 222 and the third part 223 are perpendicular to each other, one end of the first part 221 away from the second part 222 is connected to the free end 21, and the third part 223 is connected to the corresponding wire 101.

[0054] As shown in Figure 1 and Figure 2As shown in the figures, in some embodiments of the present application, the free end 21, the first part 221, the second part 222 and the third part 223 of the terminal 2 are all plate-shaped. It is worth mentioning that the terminal 2 provided by the present application can be obtained by cutting, bending and stamping from a whole metal plate, and the size and other parameters of the metal plate and / or the above-mentioned plate-shaped free end 21, first part 221, second part 222 and third part 223 can be set and adjusted according to the actual application conditions. Specifically, the terminal 2 in the electrical connection module provided by the present application can be obtained by cutting and stamping on the same metal plate, so that the terminal with the free end 21 and the flip structure 22 has good integrity and easy processability. The good integrity of the terminal 2 makes the terminal 2 and the electrical connection module have lower signal transmission impedance, and the easy processability also reduces the cost of the manufacturing process of the entire electrical connection module.

[0055] As shown in the figures, Figure 1 and Figure 2 As shown in the figures, in some embodiments of the present application, the third part 223 of the two terminals 2 is arranged side by side on the first plane 01, the distance between the third part 223 of the two terminals 2 and the distance between the free ends 21 of the two terminals 2 are both a, the plate thickness of the free end 21 and the third part 223 of the two terminals 2 is b, and a / b ∈ [1.3, 2], so that the impedance of the entire electrical connection module is as small as possible, thereby ensuring the integrity of signal transmission. For example, the value of a / b can be any one of 1.4, 1.45, 1.5, 1.55, 1.6, 1.65, 1.7, 1.75, 1.8, 1.85, 1.9 or 1.95; in other embodiments of the present application, the value of a / b can also be less than 1.3 or greater than 2.

[0056] As shown in the figures, Figure 1 and Figure 2 As shown in the figures, in some embodiments of the present application, the first part 221 and the second part 222 are connected by chamfering, and the second part 222 and the third part 223 are connected by chamfering, so as to avoid the problem of signal distortion caused by the skin effect that may occur during electrical signal transmission, and the above-mentioned chamfering connection method is also conducive to the stamping process.

[0057] As shown in the figures, Figure 1 and Figure 2 As shown in the figures, in some embodiments of the present application, the first protrusion 211 is arranged on the free end 21 of each terminal 2, so as to fix the terminal 2 with the corresponding electrical connection member by interference fit, thereby ensuring the stable contact between the electrical connection module and the electrical connection member from a physical point of view, and avoiding the problem of poor signal contact caused by external factors such as impact or shock.

[0058] As shown in Figure 1 and Figure 2 In some embodiments of the present application, the first protrusion 211 on each terminal 2 faces away from the other terminal 2, so that the fixing effect between the terminal 2 and the corresponding electrical connector is more symmetrical, stable and reliable.

[0059] As shown in Figure 1 and Figure 2 In some embodiments of the present application, the first protrusion 211 is arranged on the free end 21 of the terminal 2 close to the flip structure 22, so as to fix the terminal 2 and the corresponding electrical connector from the "root" of the terminal 2. It can be understood that the specific shape and size of the first protrusion 211 can be designed and adjusted according to actual application requirements.

[0060] In some embodiments of the present application, the free end 21 of the terminal 2 is in an S-shaped bending structure and includes an abutment portion and an abutment portion connected thereto; the arch portion and the abutment portion are in U-shaped or V-shaped, the bending directions of the arch portion and the abutment portion are opposite, the arch portion is connected with the flip structure 22, and the abutment portion is used for abutting with an electrical connector. It can be understood that the design of the S-shaped bending terminal free end can more stably and reliably form a connection with the corresponding electrical connector, thereby improving the stability of signal transmission in a physical angle, and avoiding the problem of poor signal contact caused by external factors such as impact or shock.

[0061] As shown in Figure 1 In some embodiments of the present application, the cable 1 further has a shielding layer 102, and the shielding layer 102 is arranged outside the two conductive wires 101 to provide insulation protection for the conductive wires 101.

[0062] In some embodiments of the present application, the electrical connection module further comprises a first plastic encapsulation, and the connection between the cable 1 and the terminal 2 and the flip structure 22 of the terminal 2 are accommodated in the first plastic encapsulation. Obviously, the first plastic encapsulation can provide protection for the above structure, which can avoid signal crosstalk and also prevent foreign matter from scratching and wearing the above electrical signal transmission components. It can be understood that the specific material, shape and corresponding size parameter design of the first plastic encapsulation can be selected according to actual application conditions.

[0063] In some embodiments of the present application, the third portion 223 is provided with a second protrusion 2231; and the second protrusion 2231 is exposed on the surface of the first plastic encapsulation. Specifically, the second protrusion 2231 adjusts the local size parameters of the terminal 2 to coordinate with different transmission medium dielectric constants, so as to match the impedance, reduce signal crosstalk and improve the quality of signal transmission.

[0064] Embodiment 2

[0065] As shown in Figure 3 and Figure 4 , in some embodiments of the present application, a connector comprises: an insulating base 3; a conductive enclosure (not shown) fixedly arranged in the interior of the insulating base 3; a second plastic package 4 connected with the conductive enclosure; and an electrical connection module as described in Embodiment 1 fixedly arranged in the second plastic package 4. It can be understood that the connector provided by the present application is more efficient, reasonable and compact in overall structural layout design due to the adoption of the above-mentioned electrical connection module, and the space utilization is improved.

[0066] Referring to Figure 5 and Figure 6 , it is a connector in the prior art, comprising an insulating base 3, a second plastic package 4 connected with the insulating base 3, a terminal 2 fixedly connected with the second plastic package 4, and a cable 1 connected with the terminal 2. As shown in Figure 5 and Figure 6 , the cable 1 has two wires 101 arranged side by side in the interior of the cable 1 and thus is flat, the two wires 101 are arranged side by side in a third plane 03, and the cable 1 is bent in the third plane 03 as shown in Figure 5 and Figure 6 Figure 5 Figure 6 , so that the wire 101 located on the inner side of the bend is bent to a greater extent than the wire 101 located on the outer side of the bend. This phenomenon, on the one hand, will accelerate the deformation and aging of the cable 1 and the wire 101 and affect the service life of the cable 1 and the wire 101, and on the other hand, when a differential signal pair is transmitted, the signal transmitted via the wire on the outer side of the bend will travel a longer distance than the signal transmitted via the wire on the inner side of the bend, so that the two signals in the same differential signal pair travel different distances, thereby affecting the quality of signal transmission. The electrical connection module and the connector provided by the present application provide a solution to the above-mentioned problems existing in the prior art, so that the two signals in the same differential signal pair travel the same distance, thereby obtaining better signal transmission quality.

[0067] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims. In addition, specific examples are applied in the specification to describe the principles and embodiments of the present application, and the above description of the embodiments is only used to help understand the method and core idea of the present application, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. An electrical connection module, characterized in that, The electrical connection module includes: The cable has two closely fitted conductors inside. The cable includes a connecting end, a bent section and an extension section connected in sequence. The portions of the two conductors located at the connecting end are arranged side by side in a first plane, and the portions of the two conductors located at the extension section are arranged side by side in a second plane. The two terminals each include a connected free end and a flip structure. The free ends of the two terminals are arranged side by side in a third plane. The flip structure of each terminal is connected to the part of the wire located at the connection end on the side away from the free end. Among them, the first plane, the second plane, and the third plane are all perpendicular to each other; The flipping structure comprises a first part, a second part, and a third part connected in sequence; The first part, the second part, and the third part are perpendicular to each other. The end of the first part away from the second part is connected to the free end, and the third part is connected to the corresponding wire. The free end, the first part, the second part, and the third part of the terminal are all plate-shaped, and the third parts of the two terminals are arranged side by side on the first plane.

2. The electrical connection module according to claim 1, characterized in that, The distance between the third part of the two terminals and the distance between the free ends of the two terminals are both a, and the plate thickness of the free ends and the third part of the two terminals are both b, where a / b∈[1.3,2].

3. The electrical connection module according to claim 1, characterized in that, The first part and the second part are connected by a chamfer, and the second part and the third part are connected by a chamfer.

4. The electrical connection module according to claim 1, characterized in that, Each of the terminals has a first protrusion on its free end; The first protrusion on each of the terminals is opposite to the other terminal.

5. The electrical connection module according to claim 4, characterized in that, The first protrusion is located on the free end of the terminal near the flip structure.

6. The electrical connection module according to any one of claims 2-5, characterized in that, The electrical connection module also includes a first molding compound; The connection between the cable and the terminal, and the flip structure of the terminal are housed within the first plastic encapsulation.

7. The electrical connection module according to claim 6, characterized in that, The third part is provided with a second protrusion; The second protrusion is exposed on the surface of the first molding compound.

8. A connector, characterized in that, The connector includes: Insulating base; A conductive frame is fixed inside the insulating base; The second molding compound is connected to the conductive frame. The electrical connection module as described in any one of claims 1-7 is fixed in the second molding compound.

Images