Electrical connection modules and connectors

Abstract

This invention provides an electrical connection module and connector. The electrical connection module includes: two terminals arranged side by side; a cable with two internally fitted conductors, the cable including a connecting end, a twisted section, a connecting section, and an extension section connected in sequence, the portions of the two conductors located in the twisted section being twisted in the same direction, and the connecting section and the extension section of the cable being bent and connected; the connector includes the aforementioned electrical connection module. The electrical connection module and connector provided by this invention solve the problem that bending the cable in existing electrical connection modules can cause changes in the cable's structural dimensions or even severe deformation, leading to a deterioration in the signal integrity of the cable.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and more specifically to an electrical connection module and connector. Background Technology

[0002] High-speed backplane equipment typically consists of a high-speed connector, a high-speed differential cable, and another high-speed connector. Due to the structural design requirements of equipment such as communication cabinets, the backplane needs to be fixed to the rack with the mating surfaces facing the same direction. The application environment usually requires the high-speed differential cable to be bent to meet its usage requirements.

[0003] However, in scenarios with limited frame space, the cable length requirement for the backplane cannot be too long, and short cables often have an adverse effect on product performance when bent: because the conductor is flat, if the bend occurs in the narrow side direction, this bend will deform the insulation and outer metal shield of the high-speed differential cable, causing changes in the cable's structural dimensions, and even more severe deformation of the differential line inside the bend radius. The lengths of the two copper core wires on the inner and outer sides will also be inconsistent, which will degrade the cable signal integrity. If the bend occurs in the wide side direction, the impact on signal integrity is smaller, so the conductor bend should occur in the wide side direction.

[0004] Therefore, it is necessary to provide a solution to address the problem of product performance degradation caused by cable bending. Summary of the Invention

[0005] The purpose of this invention is to provide an electrical connection module and connector to solve the problem that when the cable of an existing electrical connection module is bent, the cable structure dimensions will change or even be severely deformed, thereby deteriorating the signal integrity of the cable.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

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

[0008] Two terminals are arranged side by side in the first plane;

[0009] The cable has two conductors that fit together inside. The cable includes a connecting end, a twisted section, a connecting section, and an extension section connected in sequence. The portions of the two conductors at the connecting end are arranged side by side in a first plane and are respectively connected to a terminal. The portions of the two conductors at the twisted section are twisted in the same direction. The portions of the two conductors at the connecting section are arranged side by side in a second plane. The portions of the two conductors at the extension section are arranged side by side in a third plane. The connecting section and the extension section of the cable are bent and connected.

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

[0011] In some embodiments of the present invention, the two portions of the conductor located between the connecting segment and the extension segment are vertically connected.

[0012] In some embodiments of the present invention, the electrical connection module further includes a fixing member;

[0013] The terminal includes a free end and a fixed section connected together, and the fixed section of the terminal is connected to the portion of the wire located at the connection end;

[0014] The fixed section of the terminal, the connecting end of the cable, the twisting section, and part of the connecting section are all fixed inside the fixing member.

[0015] In some embodiments of the present invention, the fastener includes a first molding compound;

[0016] The first molding compound covers and secures the fixing segment of the terminal, and the shielding member surrounds or partially surrounds and secures the first molding compound.

[0017] In some embodiments of the present invention, the fastener includes a second molding compound;

[0018] The terminal also includes a soldering end, which is connected to one end of the fixed section away from the free end and is connected to the portion of the wire located at the connecting end.

[0019] The second molding compound covers and secures the soldering end of the terminal to the connection end of the cable, the twisted section, and part of the connection section.

[0020] In some embodiments of the present invention, each of the two wires is wrapped inside two insulating layers, and both insulating layers are wrapped inside the same shielding layer.

[0021] To achieve the above objectives, the present invention also provides the following technical solutions:

[0022] A connector comprising:

[0023] The installation frame is equipped with a docking interface;

[0024] The aforementioned electrical connection module has its terminals inserted into the interface.

[0025] In some embodiments of the present invention, the interfaces include multiple interfaces, which are arranged in a matrix on the mounting frame;

[0026] The electrical connection module includes multiple modules, and each electrical connection module is inserted into one of the interfaces.

[0027] In some embodiments of the present invention, a plurality of electrical connection modules are arranged side by side in the first plane, and the second molding compound in the plurality of electrical connection modules is integral;

[0028] The second molding compound has a fixing protrusion, and the inner wall of the mounting frame has a fixing groove. The fixing protrusion engages with the fixing groove, thereby fixing the electrical connection module to the mounting frame.

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

[0030] 1. In the electrical connection module provided by the present invention, the two wires of a differential signal pair are fixed after being twisted, so that when the two wires are bent, the length of the two wires is consistent, the delay difference is consistent, the deformation of the wires is consistent and the deformation is smaller. This solves the problem of signal distortion or asynchrony caused by wire bending, and has less impact on the integrity of signal transmission. This improves the transmission quality and stability of the connector using the electrical connection module.

[0031] 2. The connector provided by the present invention adopts the above-mentioned electrical connection module, which makes the overall structural layout design of the connector more efficient and reasonable, and improves the space utilization rate. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the electrical connection module provided in the first embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of the electrical connection module provided in the second embodiment of the present invention;

[0035] Figure 3 An exploded view of the electrical connection module provided in the third embodiment of the present invention;

[0036] Figure 4 for Figure 3 A schematic diagram of the combined state of the electrical connection module in the diagram;

[0037] Figure 5 A schematic diagram of the structure of an electrical connector provided in the fourth embodiment of the present invention;

[0038] Figure 6 for Figure 5Exploded view of the electrical connector in the image;

[0039] Figure 7 for Figure 5 An exploded view of the electrical connector from another perspective.

[0040] The main reference numerals in the accompanying drawings of this invention are explained as follows:

[0041] 01 - First plane; 02 - Second plane; 03 - Third plane;

[0042] 1-Electrical connection module; 11-Terminal; 12-Wire; 121-Connection end; 122-Twisted section; 123-Connecting section; 124-Extension section; 13-Shielding component; 14-Fixing component; 141-First molding compound; 142-Second molding compound; 1421-Fixing protrusion;

[0043] 2-Connector; 21-Mounting frame; 211-Fixing slot; 22-Matching interface. Detailed Implementation

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] The present invention provides an electrical connection module and a connector, which are described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of the present invention. Furthermore, in the following embodiments, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0046] It should be noted that, as Figures 1 to 7 As shown, the x-axis, y-axis, and z-axis are mutually perpendicular. The plane containing the x-axis and y-axis is the first plane O1, and the plane containing the y-axis and z-axis is the second plane O2. The first plane O1 and the second plane O2 are mutually perpendicular. It is worth noting that the term "perpendicular" in this specification allows for a deviation of ±10°. That is, in some specific embodiments, the angle between any two x-axis, y-axis, and z-axis may not be 90°, but may be 90° ± 10°, for example, 85° or 95°.

[0047] Example 1

[0048] like Figure 1As shown, in some embodiments of the present invention, an electrical connection module 1 includes: two terminals 11 arranged side-by-side on a first plane 01 for interlocking with corresponding signal transmission components to conduct and transmit signals; a cable (unlabeled) having two mutually fitted wires 12 inside, the cable including a connecting end 121, a twisted section 122, a connecting section 123, and an extension section 124 connected in sequence; the portions of the two wires 12 at the connecting end 121 are arranged side-by-side on the first plane 01 and are respectively connected to one of the terminals 11; the portions of the two wires 12 at the twisted section 122 are twisted in the same direction; the portions of the two wires 12 at the connecting section 123 are arranged side-by-side on a second plane 02; the portions of the two wires 12 at the extension section 124 are arranged side-by-side on a third plane 03; and the connecting section 123 and the extension section 124 of the cable are bent and connected; wherein the first plane 01, the second plane 02, and the third plane 03 are mutually perpendicular. Specifically, as shown... Figure 1 As shown, the cable has two conductors 12 arranged side-by-side inside. The portions of the two conductors 12 at the connection end 121 are side-by-side on a first plane 01, and the portions of the two conductors 12 at the connection segment 123 are side-by-side on a second plane 02 perpendicular to the first plane 01. The twisting segment 122 causes the two side-by-side conductors 12 to twist between the first plane 01 and the second plane 02. Then, the cable bends from the second plane 02 along the Y-axis to the third plane 03, forming two connection segments 123 arranged side-by-side on the second plane 02 (at this time, the two conductors 12 located in the connection segment 123 are stacked along the Z-axis direction), and as shown... Figure 1 The two conductors 12 located side-by-side on the extension section 124, as shown in area A of the diagram, are arranged on the third plane 03. This bending of the cable allows the electrical connection module 1 to meet some usage environments with more stringent space or volume design requirements. Moreover, the twisted section 122 in the cable provided by this invention ensures that the two conductors 12 inside the cable maintain the same size, achieving consistent length, consistent delay difference, consistent conductor deformation, and smaller deformation when the two conductors 12 are bent vertically. This solves the problem of signal distortion or asynchrony caused by the conductors 12 bending to another vertical direction, and has less impact on signal transmission integrity, thereby improving the transmission quality and stability of the connector using the electrical connection module.

[0049] Understandably, signal transmission integrity is generally referred to as SI performance in the industry, which means the quality integrity of a signal along its transmission path; the SI performance of electrical connection modules and connectors means that the signal transmission they achieve has better integrity.

[0050] like Figure 2 As shown, the two conductors 12 are arranged side-by-side at the connection end 121 on the first plane 01 and are bent on the first plane 01. The conductor 12 located on the inner side of the bend obviously undergoes a greater degree of deformation than the conductor 12 located on the outer side of the bend. Obviously, assuming the angles are equal, if... Figure 2 The absence of the aforementioned twisted section 122 at location B in the diagram results in the wire 12 on the outer side of the bend being longer than the wire 12 on the inner side. Therefore, given a fixed position between the connection point of the wire 12 and the terminal 11 and the connecting device at the other end of the wire 12, the signal transmitted via the outer bend wire 12 in the prior art has to travel a longer distance than the inner bend wire 12. This leads to inconsistencies in the lengths and delay differences of the two wires 12. Furthermore, the inner bend wire 12 is more prone to severe deformation and even damage, significantly reducing signal transmission integrity, stability, and reliability, ultimately weakening the overall performance of the connector product.

[0051] It is worth noting that in the above-mentioned "bending connection between connecting segment 123 and extension segment 124", the angle between the connecting segment 123 and extension segment 124 can be 5 to 100°. For example, it can be 30°, 45°, 60°, 80°, 90° or 95°. The specific bending angle can be selected according to the actual design requirements.

[0052] like Figure 1 As shown, in some embodiments of the present invention, the portions of the two wires 12 located at the connecting section 123 are perpendicularly connected to the portions of the wires 12 located at the extension section 124. This design allows the electrical connection module to meet the requirements of some application scenarios where "the insertion direction of the terminal 11 is perpendicular to the extension direction of the cable", thus achieving reasonable use of space. Moreover, due to the use of the cable with the twisted section 122, the electrical connection module 1 provided by the present invention can ensure that the lengths of the two wires 12 used for signal differential pair transmission are consistent while meeting the space optimization design of the connector, thereby ensuring consistent delay difference during signal transmission, and thus ensuring the stability, integrity and reliability of signal transmission.

[0053] like Figure 1 As shown, in some embodiments of the present invention, the electrical connection module 1 further includes a shield 13; the shield 13 surrounds or partially surrounds the periphery of the two terminals 11, and the shield 13 can reduce external signal interference to the terminals 11 it surrounds, reduce crosstalk, and improve the signal transmission quality of the electrical connection module 1. The specific shape and size of the shield 13 can be selected and adjusted according to actual needs.

[0054] like Figure 1 As shown, in some embodiments of the present invention, the electrical connection module 1 further includes a fixing member 14; the terminal 11 includes a connected free end and a fixed section, and the fixed section of the terminal 11 is connected to the portion of the conductor 12 located at the connection end 121; the fixed section of the terminal 11, the connection end 121 of the cable, the twisted section 122, and a portion of the connection section 123 are all fixed inside the fixing member 14. Specifically, after the cable with the twisted section 122 is twisted and formed by the cable twisting process, the twisted section 122 can be fixed by means of injection molding or other methods. At the same time, the terminal 11 can also be fixed to enhance the stability of the terminal 11 when it is plugged into other components, and to prevent loosening. It is worth noting that in some embodiments of the present invention, the fixing member 14 also has the function of insulation protection to ensure the personal safety of the user or to ensure the stability of signal transmission and reduce crosstalk and other effects.

[0055] like Figure 1 As shown, in some embodiments of the present invention, the fixing member 14 includes a first molding compound 141; the first molding compound 141 covers and fixes the fixing segment of the terminal 11, and the shielding member 13 surrounds or partially surrounds and fixes the first molding compound 141.

[0056] like Figure 3 and Figure 4 As shown, in some embodiments of the present invention, the fixing member 14 includes a second molding compound 142; the terminal 11 further includes a soldering end (not labeled), which is connected to one end of the fixing section away from the free end and connected to the portion of the wire 12 located at the connecting end 121; the second molding compound 142 covers and fixes the soldering end of the terminal 11 to the connecting end 121 of the cable, the twisted section 122, and a portion of the connecting section 123. In some embodiments of the present invention, the portion of the wire 12 located at the connecting end 121 is fixed to the soldering end of the terminal 11 by welding.

[0057] It is worth noting that in some embodiments of the present invention, the first molding compound 141 and the second molding compound 142 described above are integrated, but of course they can also be designed separately.

[0058] In some embodiments of the present invention, each of the two conductors 12 is wrapped inside two insulating layers (not shown), and the two insulating layers are wrapped inside the same shielding layer (not shown), forming a flat cable. This design protects the conductors 12 through the insulating and shielding layers and combines the two conductors 12 into a relatively independent single cable, facilitating later operation and maintenance. It is understood that in the prior art, when the two connectors at one end of the flat cable are arranged side-by-side on the first plane 01, if the flat cable is bent so that the two connectors at the other end are also on the first plane 01, the inner side of the flat cable will be severely deformed, weakening the signal transmission performance of the electrical connection module. This is neither aesthetically pleasing nor streamlined. Therefore, the present invention provides the cable with the aforementioned twisted section 122 to overcome the aforementioned bending problem.

[0059] like Figure 3 and Figure 4 As shown, in some embodiments of the present invention, multiple electrical connection modules 1 are arranged side by side on the first plane 01, and the second plastic seal 142 of the multiple electrical connection modules 1 is integrated to facilitate the simultaneous insertion or removal of multiple electrical connection modules 1 each time.

[0060] Example 2

[0061] like Figures 5 to 7 As shown, in some embodiments of the present invention, a connector 2 includes: a mounting frame 21 having a mating interface 22 thereon; and an electrical connection module 1 as described in Embodiment 1, with terminals 11 of the electrical connection module 1 inserted into the mating interface 22. It is understood that the mounting frame 21 may contain electrical devices that mate and conduct with the terminals 11 in the electrical connection module 1 to achieve signal transmission and provide shielding protection. Furthermore, the connector 2 provided by the present invention utilizes the aforementioned electrical connection module 1, making the overall structural layout design of the connector 2 more efficient and rational, and improving space utilization.

[0062] like Figures 5 to 7 As shown, in some embodiments of the present invention, the interfaces 22 include multiple units, arranged in a matrix on the mounting frame 21; the electrical connection modules 1 include multiple units, each of which is inserted into one of the interfaces 22. This design enables massive information transmission and improves efficiency.

[0063] like Figures 3 to 7 As shown, in some embodiments of the present invention, multiple electrical connection modules 1 are arranged side by side on the first plane 01, and the second molding compound 142 in the multiple electrical connection modules 1 is integrated, which enhances the integrity between the multiple electrical connection modules 1 and facilitates plugging and unplugging operations and modular control.

[0064] like Figure 3 , Figure 6 and Figure 7 As shown, in some embodiments of the present invention, the second molding compound 142 is provided with a fixing protrusion 1421, and the inner wall of the mounting frame 21 is provided with a fixing groove 211. The fixing protrusion 1421 and the fixing groove 211 are engaged and locked together, thereby fixing the electrical connection module 1 in the mounting frame 21. It can be understood that the properties and dimensions of the fixing protrusion 1421 and the fixing groove 211 are compatible with each other, and the specific size and shape can be selected and adjusted according to actual needs.

[0065] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims. Furthermore, specific examples have been used in the specification to illustrate the principles and implementation methods of the present invention. The above description of the embodiments is only for the purpose of helping to understand the method and core ideas of the present invention, and the content of this specification should not be construed as a limitation of the present invention.

Claims

1. An electrical connection module, characterized in that, The electrical connection module includes: Two terminals are arranged side by side in the first plane; The cable has two conductors that fit together inside, each conductor being wrapped inside two insulating layers. The cable includes a connecting end, a twisted section, a connecting section, and an extension section connected in sequence. The portions of the two conductors at the connecting end are arranged side by side in a first plane and are respectively connected to a terminal. The portions of the two conductors at the twisted section are twisted in the same direction. The portions of the two conductors at the connecting section are arranged side by side in a second plane. The portions of the two conductors at the extension section are arranged side by side in a third plane, and the connecting section and the extension section of the cable are bent and connected. Among them, the first plane, the second plane, and the third plane are perpendicular to each other.

2. The electrical connection module according to claim 1, characterized in that, The two portions of the conductor located between the connecting segment and the extension segment are perpendicularly connected.

3. The electrical connection module according to claim 2, characterized in that, The electrical connection module also includes a shielding component; The shielding element is disposed around or partially around the two terminals.

4. The electrical connection module according to claim 3, characterized in that, The electrical connection module also includes a fixing component; The terminal includes a free end and a fixed section connected together, and the fixed section of the terminal is connected to the portion of the wire located at the connection end; The fixed section of the terminal, the connecting end of the cable, the twisting section, and part of the connecting section are all fixed inside the fixing member.

5. The electrical connection module according to claim 4, characterized in that, The fastener includes a first plastic sealant; The first molding compound covers and secures the fixing segment of the terminal, and the shielding member surrounds or partially surrounds and secures the first molding compound.

6. The electrical connection module according to claim 4, characterized in that, The fastener includes a second plastic sealant; The terminal also includes a soldering end, which is connected to one end of the fixed section away from the free end and is connected to the portion of the wire located at the connecting end. The second molding compound covers and secures the soldering end of the terminal to the connection end of the cable, the twisted section, and part of the connection section.

7. The electrical connection module according to any one of claims 1-6, characterized in that, Both insulating layers are enclosed within the same shielding layer.

8. A connector, characterized in that, The connector includes: The installation frame is equipped with a docking interface; The electrical connection module as described in any one of claims 1-6, wherein the terminals of the electrical connection module are inserted into the interface.

9. The connector according to claim 8, characterized in that, The interface includes multiple interfaces, which are arranged in a matrix on the mounting frame; The electrical connection module includes multiple modules, and each electrical connection module is inserted into one of the interfaces.

10. The connector according to claim 8, characterized in that, Multiple electrical connection modules are arranged side by side in the first plane, and the second molding compound in the multiple electrical connection modules is integrated into one piece; The second molding compound has a fixing protrusion, and the inner wall of the mounting frame has a fixing groove. The fixing protrusion engages with the fixing groove, thereby fixing the electrical connection module to the mounting frame.

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