Quick-mounting connection structure of male connector for SPE single-pair Ethernet

Abstract

This utility model discloses a quick-connect structure for a male connector for SPE single-pair Ethernet. The connector core includes an inner core and an outer core. Two sets of terminal blocks are provided on the outer wall of the inner core. A shielding plate is placed between the two terminal blocks. Both terminal blocks and the shielding plate pass through the outer core and extend to its outer side. This utility model allows for easy winding and fixing of cables and core wires onto the inner core and male terminals without the need for specialized tools. It is convenient to operate and reduces the direct force exerted on the connection between the male terminal and the core wire, preventing or reducing loosening of the connection. It also ensures that the male terminal and the shielding plate remain stable during assembly. Assembly is convenient and quick, ensuring assembly quality and reducing assembly costs. Furthermore, it eliminates the need for pre-embedded shielding plates in the core, resulting in lower production costs for the core and the male connector.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a quick-connect structure for a male connector for SPE single-pair Ethernet. Background Technology

[0002] SPE (Single Pair Ethernet) is an Ethernet transmission technology based on a single pair of balanced twisted-pair cables. Data transmission can be completed with just one pair of twisted-pair cables, and it also supports power-on-the-line (POT) functionality, providing DC power to terminal devices through the same cable pair. Compared to traditional Ethernet, it significantly reduces the number of cables and wiring costs, and is widely used in many fields such as the automotive industry, industrial automation, and the Internet of Things (IoT).

[0003] In applications, male and female connectors are typically used to achieve wire continuity. During on-site installation, the male terminal needs to be connected first, with one end riveted to the cable and the other end passed through and secured in the core. To prevent cable loosening, specialized tools such as riveting jigs may be required, making the installation process quite cumbersome. Furthermore, to ensure signal transmission stability, the terminal groups connected to the power lines and those connected to the signal lines within the core need to be isolated and shielded. This is mostly achieved through two methods: pre-embedded shielding sheets or post-assembly. Pre-embedded shielding sheets are directly embedded and fixed into the core using an in-mold molding process, but the molds and production costs for the core are high and difficult to reduce. Post-assembly requires skilled operators or auxiliary tools, resulting in lower efficiency. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model provides a quick-connect structure for a single-pair Ethernet male connector for SPE. By providing a female terminal, positioning groove, and crimping observation hole on the male terminal and a storage cavity on the inner core, the cable and core wire can be wound and fixed onto the inner core and male terminal without the need for professional tools. This is convenient and reduces the direct external force acting on the connection between the male terminal and the core wire, avoiding or reducing the loosening of the line connection. By designing the core as an inner core and outer core set structure, and providing a slotted groove, clearance groove, guide hole groove, and guide hole post on it to match the shielding sheet, the male terminal and shielding sheet can be kept in a stable state during assembly. Assembly is convenient and quick, ensuring assembly quality and lower assembly cost. It also eliminates the need to pre-embed the shielding sheet on the core, resulting in lower production costs for the core and male connector.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The SPE single-pair Ethernet male connector features a quick-connect structure, comprising a core and a mating outer ring. The core has embedded signal terminal groups and power terminal groups. The signal terminal groups are electrically connected to signal wires, and the power terminal groups are electrically connected to power wires. The signal terminal group and the power terminal group each include two or more male terminals. The two ends of each male terminal are a plug-in male terminal and a wiring female terminal, respectively. Each wiring female terminal can accommodate one core wire. The core is a cylindrical structure, including an inner core and an outer core coaxially sleeved. All the male terminals are embedded in the outer wall of the inner core in the circumferential direction and in the same direction, and their male insertion ends extend to the axial outer side of the inner core and the outer core. A shielding sheet is embedded on the inner core between the signal terminal group and the power terminal group. Both ends of the shielding sheet pass through the inner core and the outer core in sequence and extend to their radial outer side. The outer ring is sleeved around the outer core, and both ends of the outer ring extend to the axial outer sides of the male terminal and the core, respectively.

[0006] As a further explanation of the above technical solution: In the above technical solution, each of the male terminals has an annular first positioning protrusion and a positioning groove formed in the middle. The positioning groove is close to the female terminal, and a riveting observation hole is formed on the outer wall of the female terminal.

[0007] In the above technical solution, the inner core has a plurality of C-shaped slots, a straight slot, and a storage cavity. The plurality of C-shaped slots are arranged circumferentially on the side wall of the inner core and penetrate the inner core axially. Each C-shaped slot can accommodate one male terminal. The straight slot is located on the central axis of the inner core and penetrates the inner core radially. The straight slot is used to accommodate the shielding sheet. The storage cavity is located on the end of the inner core near the female terminal and is used to accommodate the cable and / or core wire, and is interconnected with each C-shaped slot.

[0008] In the above technical solution, a second positioning protrusion adapted to the positioning groove is formed on the inner wall of each C-shaped slot.

[0009] In the above technical solution, the width of the slot is greater than the thickness of the shielding sheet, and several axially extending guide protrusions that are adapted to the shielding sheet are formed on its opposite sidewalls.

[0010] In the above technical solution, the outer core is a cup structure with one end closed and the other end open, and it covers the periphery of the inner core. Its open end is located on the outside of the storage cavity. An axially extending clearance groove is formed on its side wall, which is adapted to the shielding sheet and can communicate with the I-shaped slot. Its closed end has a plurality of guide post and a guide groove. Each guide post is adapted to a male plug-in end, and the guide groove is adapted to the shielding sheet.

[0011] In the above technical solution, a first positioning structure and a second positioning structure are provided on the side wall of the outer rubber core. The first positioning structure is adapted to the inner rubber core, and the second positioning structure is adapted to the outer ring.

[0012] In the above technical solution, the shielding sheet is a thin plate structure, and a third protrusion is formed on each of its two opposite sidewalls. Each of the third protrusions can pass through a cavity groove and extend to the outside of the outer core.

[0013] In the above technical solution, each of the third protrusions is provided with one or more positioning holes or slots.

[0014] In the above technical solution, the outer ring includes a plurality of axially arranged metal rings, which are snapped or screwed together and fixed in pairs. One or more metal rings are fitted onto the outer wall of the outer rubber core and are detachably fixed thereto. The outer wall of one or more metal rings is provided with external threads for connecting and fixing the male connector.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: By providing a female terminal, positioning groove, and riveting observation hole on the male terminal and a storage cavity on the inner core, the cable and core wire can be wound and fixed on the inner core and male terminal without the need for professional tools. The operation is convenient and can reduce the direct external force acting on the connection between the male terminal and the core wire, avoiding or reducing the loosening of the circuit connection. By setting the core as an inner core and outer core set structure, and providing a one-line slot, clearance groove, guide hole groove and guide hole post that are adapted to the shielding sheet, the male terminal and shielding sheet can be kept in a stable state during the assembly process. The assembly is convenient and quick and can ensure the assembly quality. The assembly cost is low, and there is no need to pre-embed the shielding sheet on the core. The production cost of the core and male connector is low. Attached Figure Description

[0016] Figure 1 This is an exploded structural diagram of this embodiment; Figure 2 This is a schematic diagram of the male terminal in this embodiment; Figure 3 This is a schematic diagram of the inner core structure in this embodiment; Figure 4 This is a schematic diagram of the outer rubber core structure in this embodiment; Figure 5 This is a schematic diagram of the shielding sheet in this embodiment.

[0017] In the diagram: 10. Male terminal; 11. Plug-in male terminal; 12. Wiring female terminal; 13. First positioning protrusion; 14. Positioning groove; 15. Riveting observation hole; 20. Glue core; 21. Inner glue core; 22. Outer glue core; 23. C-shaped card slot; 24. I-shaped card slot; 25. Storage cavity; 26. Second positioning protrusion; 27. Guide protrusion; 28. Clearance groove; 29. ​​Guide hole post; 30. Outer ring; 31. Metal ring; 32. External thread; 40. Signal terminal group; 50. Power terminal group; 60. Shielding sheet; 61. Third protrusion; 62. Positioning hole groove; 1. Cable; 2. Core wire; 3. Guide hole groove; 4. First positioning structure guide end; 5. Second positioning structure. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] like Figure 1As shown, the SPE single-pair Ethernet male connector has a quick-connect structure. The male connector includes a core 20 and a mating outer ring 30. The core 20 has a signal terminal group 40 and a power terminal group 50 embedded on it. The signal terminal group 40 is electrically connected to the signal wire, and the power terminal group 50 is electrically connected to the power wire. Both the signal terminal group 40 and the power terminal group 50 include two or more male terminals 10. The two ends of each male terminal 10 are a male insertion terminal 11 and a female connection terminal 12, respectively. Each female connection terminal 12 can accommodate one core wire 2. The core 20 has a cylindrical structure, including an inner core 21 and an outer core 22 coaxially sleeved. All male terminals 10 are embedded circumferentially and in the same direction on the outer wall of the inner core 21. Furthermore, the male terminals 11 of the connectors extend to the axial outer sides of the inner core 21 and the outer core 22. A shielding plate 60 is embedded in the inner core 21 between the signal terminal group 40 and the power terminal group 50. Both ends of the shielding plate 60 pass through the inner core 21 and the outer core 22 in sequence and extend to their radial outer sides. The outer ring 30 is sleeved on the periphery of the outer core 22, and both ends of the outer ring 30 extend to the axial outer sides of the male terminal 10 and the core 20, respectively. It includes several axially arranged metal rings 31. Two adjacent metal rings 31 are snapped or screwed together and fixed. One or more metal rings 31 are matched and sleeved on the outer wall of the outer core 22 and are detachably fixed to it. The outer wall of one or more metal rings 31 is provided with external threads 32 for connecting and fixing the male connector.

[0021] like Figure 2 As shown, each male terminal 10 has an annular first positioning protrusion 13 and a positioning groove 14 formed in the middle. The positioning groove 14 is close to the female terminal 12, and a riveting observation hole 15 is formed on the outer wall of the female terminal 12.

[0022] like Figure 3 As shown, the inner core 21 has several C-shaped slots 23, a straight slot 24, and a storage cavity 25. The C-shaped slots 23 are arranged circumferentially on the sidewalls of the inner core 21 and penetrate the inner core 21 axially. Each C-shaped slot 23 can accommodate a male terminal 10. The straight slot 24 is located on the central axis of the inner core 21 and penetrates the inner core 21 radially. The straight slot 24 is used to accommodate the shielding sheet 60. The storage cavity 25 is located on the end of the inner core 21 near the female terminal 12 and is used to accommodate the cable 1 and / or core wire 2, and is interconnected with each C-shaped slot 23. In this embodiment, each C-shaped slot 23 has a second positioning protrusion 26 adapted to the positioning groove 14 on its inner wall; the width of the straight slot 24 is greater than the thickness of the shielding sheet 60, and several axially extending guide protrusions 27 adapted to the shielding sheet 60 are formed on its opposite sidewalls.

[0023] like Figure 4As shown, the outer core 22 is a cup-shaped structure with one end closed and the other end open, and it covers the outer periphery of the inner core 21. Its open end is located on the outside of the storage cavity 25. An axially extending clearance groove 28 is formed on its side wall, which is adapted to the shielding sheet 60 and can communicate with the I-shaped slot 24. Its closed end has a number of guide post 29 and a guide groove 3. Each guide post 29 is adapted to a male plug-in end 11, and the guide groove 3 is adapted to the shielding sheet 60. The side wall of the outer core 22 is provided with a first positioning structure 4 and a second positioning structure 5. The first positioning structure 4 is adapted to the inner core 21, and the second positioning structure 5 is adapted to the outer ring 30. In this embodiment, for ease of assembly, one end of the clearance groove 28 extends to the open end face of the outer core 22; to ensure that the inner core 21 and the outer core 22 are assembled in place, an inner limiting boss adapted to the first positioning protrusion 13 is formed on the inner wall of the closed end of the outer core 22; to ensure that the connector is inserted in place when plugged in, an outer limiting boss is provided at the end of the outer core 22 around the guide hole post 29.

[0024] like Figure 5 As shown, the shielding sheet 60 is a thin plate structure, and a third protrusion 61 is formed on each of its two opposite side walls. Each third protrusion 61 can pass through a clearance groove 28 and extend to the outside of the outer core 22. Each third protrusion 61 has one or more positioning holes 62.

[0025] During on-site construction, first strip a section of the outer sheath from the end of cable 1 to expose each core wire 2 of the two stranded wires inside. Insert each core wire 2 into the female terminal 12 of each male terminal 10, and then pass it through the inspection hole 15. Wrap the internal core wire around the positioning groove 14 and secure it with pliers. After completion, align the positioning groove 14 on the male terminal 10 with a second positioning protrusion 26 and insert it into a C-shaped slot 23. Repeat this process until all male terminals 10 are connected to the core wire 2. Secure the inner core 21 to the outer core 22, then push the shielding sheet 60 into the slot 24 to complete the assembly of the inner core 21. After that, align the shielding sheet 60 with the clearance slot 28, push the inner core 21 into the outer core 22 from the open end of the outer core 22 and into place, insert the male end 11 through the guide hole post 29, and the front end of the shielding sheet 60 through the guide hole groove 3 to complete the assembly of the outer core 22. Finally, fix the outer ring 30 around the core 20.

[0026] This invention, by providing a female terminal 12, a positioning groove 14, and a riveting observation hole 15 on the male terminal 10 and a storage cavity 25 on the inner core 21, allows the cable 1 and core wire 2 to be wound and fixed on the inner core 21 and male terminal 10 without the need for professional tools. This is convenient to operate and can reduce the direct external force acting on the connection between the male terminal 10 and the core wire 2, avoiding or reducing the loosening of the circuit connection. By setting the core 20 as a set structure of inner core 21 and outer core 22, and providing a one-line slot 24, a clearance slot 28, a guide hole slot 3, and a guide hole post 29 that are adapted to the shielding sheet 60, it can ensure that the male terminal 10 and the shielding sheet 60 are always in a stable state during the assembly process. The assembly is convenient and quick, and the assembly quality is ensured. The assembly cost is low, and there is no need to pre-embed the shielding sheet 60 on the core. The production cost of the core 20 and the male connector is also low.

[0027] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A quick-connect structure for a single-pair Ethernet male connector (SPE), the male connector comprising a core and a mating outer ring, wherein the core is provided with a signal terminal group and a power terminal group, the signal terminal group being electrically connected to a signal wire, and the power terminal group being electrically connected to a power wire; characterized in that, The signal terminal group and the power terminal group each include two or more male terminals. The two ends of each male terminal are a plug-in male terminal and a wiring female terminal, respectively. Each wiring female terminal can accommodate one core wire. The core is a cylindrical structure, including an inner core and an outer core coaxially sleeved. All the male terminals are embedded in the outer wall of the inner core in the circumferential direction and in the same direction, and their male insertion ends extend to the axial outer side of the inner core and the outer core. A shielding sheet is embedded on the inner core between the signal terminal group and the power terminal group. Both ends of the shielding sheet pass through the inner core and the outer core in sequence and extend to their radial outer side. The outer ring is sleeved around the outer core, and both ends of the outer ring extend to the axial outer sides of the male terminal and the core, respectively.

2. The quick-connect structure according to claim 1, characterized in that, Each of the male terminals has an annular first positioning protrusion and a positioning groove formed in the middle, the positioning groove being close to the female terminal, and a riveting observation hole being formed on the outer wall of the female terminal.

3. The quick-connect structure according to claim 2, characterized in that, The inner core has several C-shaped slots, one straight slot, and a storage cavity. The C-shaped slots are arranged circumferentially on the sidewalls of the inner core and penetrate the inner core axially. Each C-shaped slot can accommodate one male terminal. The straight slot is located on the central axis of the inner core and penetrates the inner core radially. The straight slot is used to accommodate the shielding sheet. The storage cavity is located on the end of the inner core near the female terminal and is used to accommodate the cable and / or core wire, and is interconnected with each C-shaped slot.

4. The quick-connect structure according to claim 3, characterized in that, Each of the C-shaped slots has a second positioning protrusion on its inner wall that is adapted to the positioning groove.

5. The quick-connect structure according to claim 3, characterized in that, The width of the slot is greater than the thickness of the shielding sheet, and several axially extending guide protrusions that are adapted to the shielding sheet are formed on its opposite sidewalls.

6. The quick-connect structure according to claim 3, characterized in that, The outer core is a cup-shaped structure with one end closed and the other end open, and it covers the outer periphery of the inner core. Its open end is located on the outside of the storage cavity. An axially extending clearance groove is formed on its side wall, which is adapted to the shielding sheet and can communicate with the I-shaped slot. Its closed end has a plurality of guide post holes and a guide groove hole. Each guide post hole is adapted to a male plug-in end, and the guide groove hole hole is adapted to the shielding sheet.

7. The quick-connect structure according to claim 6, characterized in that, The outer rubber core has a first positioning structure and a second positioning structure on its side wall. The first positioning structure is adapted to the inner rubber core, and the second positioning structure is adapted to the outer ring.

8. The quick-connect structure according to claim 6, characterized in that, The shielding sheet is a thin plate structure, with a third protrusion formed on each of its two opposite sidewalls. Each of the third protrusions can pass through a clearance groove and extend to the outside of the outer core.

9. The quick-connect structure according to claim 8, characterized in that, Each of the third protrusions has one or more positioning holes or slots.

10. The quick-connect structure according to any one of claims 1-9, characterized in that, The outer ring includes a plurality of axially arranged metal rings, which are snapped or screwed together and fixed in pairs. One or more metal rings are fitted onto the outer wall of the outer core and are detachably fixed thereto. The outer wall of one or more metal rings is provided with external threads for connecting and fixing the male connector.

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